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Table S1: Studies involving Doppler assessment of uterine arteries Study Dugoff, Lynch et al. (2005) Valentin, Sladkevicius et al. (1996) Deutinger, Rudelstorfer et al. (1988) Duggan and McCowan (1993) Merce, Barco et al. (1989) Jouppila and SuomalainenKonig (1994) Irion, Masse et al. (1996) Kofinas, Penry et al. (1988) Kofinas, Espeland et al. (1992) Bewley, Campbell et al. (1989) Fleischer, Anyaegbunam et al. (1987) Kurmanavichius, Baumann et al. (1990) Brar, Medearis et al. (1989) Khalil, Akolekar et al. (2010) den Ouden, Cohen-Overbeek et al. (1990) Hershkovitz, Sheiner et al. (2002) Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective crosssectional Prospective crosssectional Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, were volumetric data provided? Study related to patients with preeclampsia Number of participants Purported to assess flow (primary data) 1006 No No 64 No No 88 No No 19 No No 25 No No 21 No No 665 No No 112 No No 154 No No 993 No No 12 No No 67 No No 92 No No 308 No No 85 No No 144 No No If yes, comparison made with healthy control group? Study Type of study Kähler, Schleussner et al. (2004) Caruso, De Carolis et al. (1998) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Morrow, Ritchie et al. (1988) Brar, Horenstein et al. (1989) Goynumer, Yayla et al. (2009) Oosterhof and Aarnoudse (1992) Oosterhof, Dijkstra et al. (1992) Makikallio, Tekay et al. (2004) Petzold, Jank et al. (2011) Jauniaux, Zaidi et al. (1994) Alfirevic and Kurjak (1990) Jauniaux, Jurkovic et al. (1992) Yunohara, Ito et al. (1994) Levi-Setti, Rognoni et al. (1995) Pirhonen, Erkkola et al. (1991) Metsala, Pirhonen et al. (1993) Valli, Pirhonen et al. (1994) If yes, were volumetric data provided? Study related to patients with preeclampsia Number of participants Purported to assess flow (primary data) 27 No No 11 No No 15 No No 45 No No 760 No No 45 No No 16 No No 16 No No 50 No No 60 No No 75 No No 44 No No 23 No No 70 No No 10 No No 17 No No 24 No No If yes, comparison made with healthy control group? Study Type of study Pirhonen, Bergersen et al. (2005) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Cross sectional observational Prospective interventional Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational study Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised controlled trial Yildiz, Sezer et al. (2011) Albuquerque, Smith et al. (2004) Kimya, Cengiz et al. (1998) Adali, Kurdoglu et al. (2011) Rafla and Etokowo (1998) Ferland, Bujold et al. (2013) Tahara, Nakai et al. (2009) Schiessl, Strasburger et al. (2003) Muller, James et al. (2006) Weiner, Farmakides et al. (1996) Park, Cho et al. (1996) Castro, Allen et al. (1993) Mehalek, Berkowitz et al. (1988) Prefumo, Sebire et al. (2004) Lin, Shimizu et al. (1995) Hata, Senoh et al. (1995) If yes, were volumetric data provided? Study related to patients with preeclampsia Number of participants Purported to assess flow (primary data) 884 No No 101 No No 143 No No 43 No No 70 No No 102 No No 94 No No 88 No No 49 No No 222 No No 81 No No 2321 No No 19 No No 85 No No 31 No No 43 No No 20 No No If yes, comparison made with healthy control group? Study Type of study Erkkola, Pirhonen et al. (1992) Prospective interventional cohort Retrospective casecontrol Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Cross-sectional observational Retrospective casecontrol Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective observational cohort Smith, Yu et al. (2007) Polvi, Pirhonen et al. (1996) Weiner, Lorber et al. (1992) Economides, Nicolaides et al. (1990) Aristidou, Van den Hof et al. (1990) Pirhonen, Erkkola et al. (1990) Thaler, Weiner et al. (1992) Polvi, Pirhonen et al. (1995) Jurkovic, Jauniaux et al. (1991) Pirhonen, Erkkola et al. (1990) Pirhonen and Erkkola (1990) Strigini, Lencioni et al. (1995) Brar, Platt et al. (1988) Brar, Medearis et al. (1988) Mari, Kirshon et al. (1990) Goetzinger, Cahill et al. (2012) If yes, were volumetric data provided? Study related to patients with preeclampsia Number of participants Purported to assess flow (primary data) 8 No No 30519 No No 20 No No 5 No No 30 No No 98 No No 10 No No 140 No No 10 No No 45 No No 12 No No 10 No No 417 No No 27 No No 60 No No 10 No No 578 No No If yes, comparison made with healthy control group? Study Beta, Akolekar et al. (2011) Hafner, Metzenbauer et al. (2001) Viero, Chaddha et al. (2004) Arduini, Rizzo et al. (1990) Vergani, Roncaglia et al. (2002) Park, Cho et al. (2000) Dekker, Lee et al. (2012) Alves, Silva et al. (2013) Guedes-Martins, Saraiva et al. (2014) Flo, Wilsgaard et al. (2011) Abd el Aal and Kunzel (1994) Li, Gudmundsson et al. (2004) Bower, Campbell et al. (1991) Fay, Ellwood et al. (1994) Farrell, Chien et al. (1998) Lefebvre, Demers et al. (2012) Liao, Toyama et al. (2009) Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, were volumetric data provided? Study related to patients with preeclampsia Number of participants Purported to assess flow (primary data) 34025 No No 1060 No No 60 No No 50 No No 294 No No 198 No No 3184 No No 409 No No 312 No No 53 No No 20 No No 67 No No 13 No No 70 No No 1371 No No 81 No No 344 No No If yes, comparison made with healthy control group? If yes, were volumetric data provided? Study related to patients with preeclampsia Study Type of study Number of participants Purported to assess flow (primary data) Plasencia, Barber et al. (2011) Jaffa, Weissman et al. (1995) Weissman, Jaffa et al. (1995) Prospective observational cohort 351 No No Cross sectional observational 88 No No 201 No No 83 No No 231 No No Prospective observational cohort 67 No No Cross sectional observational 153 No No Prospective observational cohort 20 No No Prospective observational cohort 26 No No Prospective observational cohort 18 No No Retrospective case control 2490 No No Prospective observational cohort 196 No No Prospective observational cohort 37 No No Prospective observational cohort 43 No No Retrospective case control 147 No No Prospective observational cohort 557 No No Locci, Nazzaro et al. (1993) Lindqvist and Gudmundsson (2001) Dubiel, SeremakMrozikiewicz et al. (2005) Zimmermann, Alback et al. (1995) Montan, Anandakumar et al. (1993) Makikallio, Tekay et al. (2001) van Zalen-Sprock, van Vugt et al. (1994) Soares, Fratelli et al. (2007) Saemundsson, Svantesson et al. (2009) Coppens, Loquet et al. (1996) Valensise, Novelli et al. (2000) Donohoe, Geary et al. (1999) Geipel, Hennemann et al. (2011) Cross sectional observational Prospective observational cohort Retrospective case control If yes, comparison made with healthy control group? If yes, were volumetric data provided? Study related to patients with preeclampsia Study Type of study Number of participants Purported to assess flow (primary data) Gomez, Figueras et al. (2008) Kurmanavicius, Florio et al. (1997) Prospective crosssectional observational 620 No No 1675 No No 33629 No No 100 No No 12 No No 20 No No 63 No No 116 No No 5706 No No 11 No No 692 No No 1 No No 1102 No No 93 No No 96 No No 100 No No 977 No No Fonseca, Yu et al. (2006) Papageorghiou, To et al. (2001) Gagnon, Morrow et al. (1988) Yan, Tan et al. (1995) Hollis, Mavrides et al. (2001) Herraiz, Lopez-Jimenez et al. (2009) Cobian-Sanchez, Prefumo et al. (2004) Amit, Thaler et al. (1998) Bindra, Curcio et al. (2001) Acacio (2002) Hafner, Schuchter et al. (2000) Prefumo, Fratelli et al. (2007) Kent, Hughes et al. (2002) Teixeira, Fisk et al. (1999) Bewley, Chard et al. (1993) Prospective crosssectional observational Prospective observational cohort Prospective observational cohort Prospective interventional cohort Prospective crosssectional observational Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Case report Retrospective case control Retrospective case control Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, comparison made with healthy control group? If yes, were volumetric data provided? Study related to patients with preeclampsia Study Type of study Number of participants Purported to assess flow (primary data) Bracero, Evanco et al. (1997) Wallace, Fraser et al. (2014) Derwig, Barker et al. (2013) Prospective observational cohort 265 No No Prospective observational cohort 36 No No 40 No No 171 No No 86 No No 58 No No 48 No No Cross sectional 451 No No Cross sectional 781 No No Prospective observational cohort 46 No No Prospective observational cohort 86 No No Prospective observational cohort 1238 No No Prospective observational cohort 111 No No Prospective interventional cohort 21 No No Case control 146 No No Prospective observational cohort 10 No No Oros, Figueras et al. (2011) Ito, Shono et al. (1998) Mehalek, Rosenberg et al. (1989) Ito, Shouno et al. (1990) Ventura, De Paco et al. (2012) Nguyen, Evenson et al. (2013) Fraser, Whitley et al. (2012) Wortelboer, Koster et al. (2011) Walker, Hindmarsh et al. (2010) Baschat, Kasdaglis et al. (2009) Alahuhta, Rasanen et al. (1995) Pietryga, Brazert et al. (2006) Strumper, Louwen et al. (2005) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, comparison made with healthy control group? If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? Study Type of study Number of participants Purported to assess flow (primary data) Jacquemyn and Verdonk (2001) Giannubilo, Menegazzi et al. (2008) Bower, Kingdom et al. (1998) Gogarten, Struemper et al. (2005) Karinen, Rasanen et al. (1995) Prospective observational cohort 278 No No Prospective observational cohort 27 No No Case control 50 No No Randomised trial 14 No No Randomised trial 26 No No Prospective interventional cohort 18 No No Case study 1 No No Cross sectional 280 No No Prospective observational cohort 491 No No Prospective observational cohort 45 No No Prospective observational cohort 84 No No 37 No No 60 No Yes Yes 114 No Yes Yes 893 No Yes Yes 64 No Yes Yes Thaler, Amit et al. (1996) Krakow, Castro et al. (1994) Pirhonen and Erkkola (1994) Melchiorre, Sutherland et al. (2011) Thuring, Marsal et al. (2012) Thuring, Laurini et al. (2010) Derwig, Lythgoe et al. (2013) Guven, Ertas et al. (2007) Cok, Tarim et al. (2012) Audibert, Boucoiran et al. (2010) Anastasakis, Paraskevas et al. (2008) Prospective observational cohort Prospective observational cohort Retrospective case control Prospective cohort study Prospective observational cohort Study Farrell and Dawson (2001) Prefumo, Fratelli et al. (2008) Brodszki, Lanne et al. (2008) McCowan, Ritchie et al. (1988) Park, Kim et al. (2014) North, McCowan et al. (2011) Papageorghiou, Yu et al. (2005) Yu, Smith et al. (2005) Bower, Schuchter et al. (1993) Subtil, Goeusse et al. (2003) Goffinet, Aboulker et al. (2001) Aardema, Saro et al. (2004) Fleischer, Schulman et al. (1986) Ducey, Schulman et al. (1987) Bodova, Biringer et al. (2011) Rizzo, Capponi et al. (2008) Rizos, Eleftheriades et al. (2013) Type of study Retrospective case control Retrospective casecontrol Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised controlled trial Randomised controlled trial Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective casecontrol Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 56 No Yes Yes 57 No Yes Yes 15 No Yes Yes 262 No Yes Yes 3529 No Yes Yes 17319 No Yes Yes 32157 No Yes Yes 2430 No Yes Yes 1253 No Yes Yes 3317 No Yes Yes 531 No Yes Yes 71 No Yes Yes 136 No Yes Yes 102 No Yes Yes 348 No Yes Yes 116 No Yes Yes Number of participants Purported to assess flow (primary data) 43 If yes, were volumetric data provided? Study Type of study Frusca, Soregaroli et al. (1998) Soregaroli, Soregaroli et al. (2001) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised trial Retrospective casecontrol Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective nested case-control Prospective observational cohort Prospective observational cohort Prospective crosssectional Prospective observational cohort Caruso, Caforio et al. (1996) Barkehall Thomas, Barkehall Thomas et al. (2005) Makino, Izumi et al. (1997) Staboulidou, Galindo et al. (2009) Prefumo, Canini et al. (2006) Konchak, Bernstein et al. (1995) Miyakoshi, Tanaka et al. (2001) Vergani, Roncaglia et al. (2002) Palma-dias, Fonseca et al. (2009) Todros, Ferrazzi et al. (1995) Phupong, Dejthevaporn et al. (2003) D'Antonio, Hamilton et al. (2013) Caforio, Testa et al. (1999) Ferrier, North et al. (1994) Salvesen, Higueras et al. (1993) Lai, Poon et al. (2013) Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 282 No Yes Yes 42 No Yes Yes 62 No Yes Yes 37 No Yes Yes 2330 No Yes Yes 433 No Yes Yes 103 No Yes Yes 359 No Yes Yes 294 No Yes Yes 1057 No Yes Yes 916 No Yes Yes 322 No Yes Yes 336 No Yes Yes 865 No Yes Yes 51 No Yes Yes 65 No Yes Yes 4600 No Yes Yes Number of participants Purported to assess flow (primary data) 78 If yes, were volumetric data provided? Study Poon, Volpe et al. (2013) Gallo, Poon et al. (2013) Audibert, Benchimol et al. (2005) Mires, Williams et al. (1998) Espinoza, Romero et al. (2007) Crispi, Domínguez et al. (2006) Wright, Akolekar et al. (2012) Poon, Syngelaki et al. (2013) Karagiannis, Akolekar et al. (2011) Akolekar, Syngelaki et al. (2013) Bewley, Cooper et al. (1991) Dane, Dane et al. (2010) Grab, Hutter et al. (1992) Guzman, Schulman et al. (1992) Schulman, Winter et al. (1989) Maymon, Jauniaux et al. (1998) Block-Abraham, Turan et al. (2013) Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 50490 No Yes Yes 2615 No Yes Yes 6579 No Yes Yes 3348 No Yes Yes 153 No Yes Yes 58884 No Yes Yes 62052 No Yes Yes 32850 No Yes Yes 58884 No Yes Yes 977 No Yes Yes 404 No Yes Yes 612 No Yes Yes 27 No Yes Yes 255 No Yes Yes 85 No Yes Yes 1283 No Yes Yes Number of participants Purported to assess flow (primary data) 65819 If yes, were volumetric data provided? Study Type of study Aardema, Lander et al. (2000) Hershkovitz, de Swiet et al. (2005) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective case control Prospective observational cohort Prospective observational cohort Prospective interventional cohort Prospective interventional cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Stepan, Geipel et al. (2008) de Melo, de Amorim et al. (2010) Carbone, Cruz et al. (2011) Poon, Kametas et al. (2009) Park, Leung et al. (2013) Khaw, Kametas et al. (2008) Stepan, Unversucht et al. (2007) Driul, Damante et al. (2005) Irion, Masse et al. (1998) Madazli, Kuseyrioglu et al. (2005) Belfort, Akovic et al. (1994) Belfort, Akovic et al. (1994) Walther, Wessel et al. (2006) Florio, D'Aniello et al. (2005) Zimmermann and Ranta (1998) Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 88 No Yes Yes 77 No Yes Yes 154 No Yes Yes 27461 No Yes Yes 7797 No Yes Yes 3014 No Yes Yes 534 No Yes Yes 63 No Yes Yes 103 No Yes Yes 1311 No Yes Yes 122 No Yes Yes 10 No Yes No 5 No Yes No 102 No Yes Yes 65 No Yes Yes 347 No Yes Yes Number of participants Purported to assess flow (primary data) 94 If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 73 No Yes Yes 100 No Yes Yes 1536 No Yes Yes 100 No Yes Yes 3678 No Yes Yes 124 No Yes Yes 112 No Yes Yes 64 No Yes Yes 1014 No Yes Yes 2083 No Yes Yes 100 No Yes Yes 45 No Yes Yes 393 No Yes Yes 283 No Yes Yes 106 No Yes Yes Nested case control 170 No Yes Yes Prospective observational cohort 1757 No Yes Yes Study Type of study Zeeman, Zeeman et al. (2003) Elsandabesee, Srinivas et al. (2006) Prospective observational cohort Retrospective case control Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Controlled trial Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised trial Randomised controlled trial Prospective observational cohort Prospective observational cohort Randomised controlled trial Prospective observational study Sharma, Singh et al. (2011) Takahashi, Ohkuchi et al. (2012) Agarwal, Suneja et al. (2004) Becker (2011) Torricelli, Reis et al. (2006) Shaker and Shehata (2011) Hanretty, Whittle et al. (1988) Steel, Pearce et al. (1990) Davies, Gallivan et al. (1992) McParland, Pearce et al. (1990) Leible, Munoz et al. (1998) Joern, Funk et al. (1996) Chappell, Seed et al. (1999) Fay, Ellwood et al. (1994) Thilaganathan, Wormald et al. (2010) Albaiges, Missfelder-Lobos et al. (2000) Number of participants Purported to assess flow (primary data) 56 If yes, were volumetric data provided? Study Bower, Bewley et al. (1993) Lees, Parra et al. (2001) Groom, North et al. (2009) Caruso, De Carolis et al. (1993) Benifla, Tchobroutsky et al. (1992) Chan, Pun et al. (1995) Iwata, Matsuzaki et al. (1993) North, Ferrier et al. (1994) Rizzo, Arduini et al. (1993) Frusca, Soregaroli et al. (2003) Poon, Stratieva et al. (2010) Akolekar, Syngelaki et al. (2011) Spencer, Yu et al. (2005) Roncaglia, Crippa et al. (2008) Spencer, Cowans et al. (2007) Yu, Lakasing et al. (2004) Diguisto, Le Gouge et al. (2013) Cooper, Johnson et al. (2009) Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective casecontrol Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective casecontrol Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Nested case-control Prospective observational cohort Prospective observational cohort Prospective observational cohort Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 5121 No Yes Yes 2189 No Yes Yes 24 No Yes Yes 28 No Yes Yes 334 No Yes Yes 47 No Yes Yes 458 No Yes Yes 64 No Yes Yes 344 No Yes Yes 8061 No Yes Yes 33602 No Yes Yes 4390 No Yes Yes 182 No Yes Yes 85 No Yes Yes 683 No Yes Yes 235 No Yes Yes 289 No Yes Yes Number of participants Purported to assess flow (primary data) 329 If yes, were volumetric data provided? Study Youssef, Righetti et al. (2011) Di Lorenzo, Ceccarello et al. (2012) Odibo, Zhong et al. (2011) Madazli, Somunkiran et al. (2003) Toal, Keating et al. (2008) Haddad, Cabrol et al. (1999) Contro, Maroni et al. (2010) Asnafi and Hajian (2011) Haddad, Uzan et al. (1995) Rampello, Frigerio et al. (2009) Loupas, Ellwood et al. (1995) Diab, El-Behery et al. (2008) Ferrazzi, Bulfamante et al. (1999) Nicolaides, Bindra et al. (2006) Vainio, Kujansuu et al. (2002) Olofsson, Laurini et al. (1993) Bower, Harrington et al. (1996) Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 2118 No Yes Yes 452 No Yes Yes 72 No Yes Yes 60 No Yes Yes 35 No Yes No 262 No Yes Yes 70 No Yes Yes 48 No Yes Yes 139 No Yes Yes 92 No Yes Yes 108 No Yes Yes 127 No Yes Yes Nested case control 433 No Yes Yes Randomised controlled trial 90 No Yes Yes Prospective observational cohort 26 No Yes Yes Randomised controlled trial 60 No Yes Yes Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective case control Retrospective case Prospective observational cohort Prospective observational cohort Prospective interventional Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Number of participants Purported to assess flow (primary data) 528 If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 614 No Yes Yes Prospective observational cohort 180 No Yes Yes Prospective observational cohort 139 No Yes Yes Prospective observational cohort 144 No Yes Yes Prospective observational cohort 347 No Yes Yes Prospective observational cohort 272 No Yes Yes Prospective observational cohort 185 No Yes Yes Prospective observational cohort 352 No Yes Yes Prospective observational cohort 160 No Yes Yes Prospective observational cohort 108 No Yes No Prospective observational cohort 4132 No Yes Yes Prospective observational cohort 252 No Yes Yes Nested case control 534 No Yes Yes Prospective observational cohort 3058 No Yes Yes Prospective observational cohort 3010 No Yes Yes Study Type of study Number of participants Purported to assess flow (primary data) Albaiges, Missfelder-Lobos et al. (2003) Aquilina, Barnett et al. (2000) Benedetto, Valensise et al. (1998) Gudnasson, Dubiel et al. (2004) Parretti, Mealli et al. (2003) Zimmermann, Eirio et al. (1997) Valensise, Bezzeccheri et al. (1993) Harrington, Cooper et al. (1996) van den Elzen, CohenOverbeek et al. (1995) Khalil, Harrington et al. (2010) van Asselt, Gudmundsson et al. (1998) Prefumo, Sebire et al. (2004) Khalil, Cowans et al. (2010) Spencer, Cowans et al. (2007) Melchiorre, Wormald et al. (2008) Melchiorre, Leslie et al. (2009) Prospective observational cohort 157 Prospective observational cohort If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 8366 No Yes Yes Prospective observational cohort 8531 No Yes Yes Prospective observational cohort 402 No Yes Yes Prospective observational cohort 689 No Yes Yes Cross sectional observational 110 No Yes Yes 633 No Yes Yes 1123 No Yes Yes 124 No Yes Yes 114 No Yes Yes Prospective observational cohort 7851 No Yes Yes Prospective observational cohort 456 No Yes Yes Prospective observational cohort 1757 No Yes Yes Prospective observational cohort 3529 No Yes Yes 200 No Yes Yes 30639 No Yes Yes 168 No Yes Yes Study Type of study Number of participants Purported to assess flow (primary data) Prefumo, Thilaganathan et al. (2008) Poon, Staboulidou et al. (2009) Poon, Karagiannis et al. (2009) Poon, Akolekar et al. (2010) Aquilina, Thompson et al. (2001) Hofstaetter, Dubiel et al. (1996) Gudmundsson, Korszun et al. (2003) Prospective observational cohort 40 Prospective observational cohort Pilalis, Souka et al. (2007) Yu, Shixia et al. (2011) Coleman, McCowan et al. (2000) Papageorghiou, Yu et al. (2001) Frusca, Soregaroli et al. (1997) Albaiges, Missfelder-Lobos et al. (2000) Onwudiwe, Yu et al. (2008) Prajapati and Maitra (2013) Yu, Khouri et al. (2008) Spencer, Yu et al. (2006) Prospective observational cohort Prospective observational cohort Case control Prospective observational cohort Prospective observational cohort Prospective observational cohort Case-control study If yes, were volumetric data provided? Study Crispi, Llurba et al. (2008) Savvidou, Yu et al. (2006) Aardema, De Wolf et al. (2000) Yu, Papageorghiou et al. (2003) Liberati, Rotmensch et al. (1997) Pilalis, Souka et al. (2007) Martin, Bindra et al. (2001) Hafner, Metzenbauer et al. (2006) Valensise and Romanini (1993) Napolitano, Santo et al. (2010) Prefumo, Guven et al. (2004) Florio, Reis et al. (2003) Antsaklis, Daskalakis et al. (2000) Grunewald, Kublickas et al. (1994) Kurdi, Campbell et al. (1998) Harrington, Goldfrad et al. (1997) Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 106 No Yes Yes 625 No Yes Yes 560 No Yes Yes 481 No Yes Yes 878 No Yes Yes 3324 No Yes Yes Prospective observational cohort 2489 No Yes Yes Prospective observational cohort 192 No Yes Yes Retrospective case control 24859 No Yes Yes 411 No Yes Yes 58 No Yes Yes 654 No Yes Yes Prospective observational cohort 121 No Yes Yes Prospective observational cohort 1022 No Yes Yes Prospective observational cohort 652 No Yes Yes Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised controlled trial Prospective observational cohort Prospective observationa cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Number of participants Purported to assess flow (primary data) 114 If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 203 No Yes Yes Prospective observational cohort 380 No Yes Yes Prospective observational cohort 3107 No Yes Yes Prospective observational cohort 5148 No Yes Yes 999 No Yes Yes 47 No Yes Yes 628 No Yes Yes Prospective observational cohort 292 No Yes Yes Prospective observational cohort 7660 No Yes Yes Prospective observational cohort 8377 No Yes Yes 150 No Yes Yes 179 No Yes Yes 43 No Yes Yes 37 No Yes Yes 108 No Yes Yes Study Type of study Number of participants Purported to assess flow (primary data) Harrington, Kurdi et al. (2000) Murakoshi, Sekizuka et al. (1996) Schuchter, Metzenbauer et al. (2001) Plasencia, Maiz et al. (2008) Plasencia, Maiz et al. (2007) Gomez, Martinez et al. (2005) Randomised controlled trial 216 Prospective crosssectional observational Lees, Brown et al. (1997) Harrington, Fayyad et al. (2004) Geipel, Ludwig et al. (2001) Gaillard, Arends et al. (2013) Rurangirwa, Gaillard et al. (2012) Tommaselli, Pighetti et al. (2004) Chung, Cho et al. (2000) Grab, Paulus et al. (2000) Haddad, Uzan et al. (1993) Tobinaga, Torloni et al. (2014) Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective case control Prospective observational cohort Randomised controlled trial Prospective observational cohort Prospective observational cohort If yes, were volumetric data provided? Study Chaiworapongsa, Espinoza et al. (2008) Chaiworapongsa, Romero et al. (2010) Schlembach, Wallner et al. (2007) Guzin, Tomruk et al. (2005) Poon, Musci et al. (2013) Kafkaslı, Türkçüoğlu et al. (2013) Gomez-Arriaga, Herraiz et al. (2013) Meler, Figueras et al. (2010) Crovetto, Crispi et al. (2014) Scazzocchio, Figueras et al. (2013) Hernandez-Andrade, Brodszki et al. (2002) Villa, Kajantie et al. (2013) Brandao, Cabral et al. (2012) Beneventi, Locatelli et al. (2012) Bolin, Wikstrom et al. (2012) Brandao, Pereira et al. (2012) Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 204 No Yes Yes 31 No Yes No Type of study Number of participants Purported to assess flow (primary data) Cross sectional 300 Cross sectional Prospective observational cohort If yes, were volumetric data provided? Prospective observational cohort Prospective observational cohort Retrospective case control 52 No Yes Yes 1949 No Yes Yes 259 No Yes No Prospective observational cohort 92 No Yes Yes Prospective observational cohort 190 No Yes No Prospective observational cohort 4970 No Yes Yes Prospective observational cohort 5759 No Yes Yes Case control 741 No Yes Yes 152 No Yes Yes 74 No Yes Yes Prospective observational cohort 3932 No Yes Yes Retrospective case control 175 No Yes Yes Prospective observational cohort 59 No Yes Yes Randomised controlled trial Prospective observational cohort Study Parra-Cordero, Rodrigo et al. (2013) Abdelaziz, Maher et al. (2012) Everett, Mahendru et al. (2012) Napolitano, Melchiorre et al. (2012) Kaymaz, Demir et al. (2011) Herraiz, Escribano et al. (2012) Klein, Mailath-Pokorny et al. (2011) Trapani, Goncalves et al. (2011) Maroni, Youssef et al. (2011) Napolitano, Rajakulasingam et al. (2011) Eser, Zulfikaroglu et al. (2011) Noori, Donald et al. (2010) Souza, Amorim et al. (2010) Ramos-Santos, Devoe et al. (1991) Leal, Poon et al. (2009) Poon, Maiz et al. (2009) Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 1898 No Yes Yes Prospective observational cohort 99 No Yes Yes Prospective observational cohort 3549 No Yes Yes Prospective observational cohort 103 No Yes Yes Prospective observational cohort 135 No Yes Yes Prospective observational cohort 423 No Yes Yes Prospective observational cohort 30 No Yes No Prospective observational cohort 66 No Yes Yes Prospective observational cohort 6221 No Yes Yes 195 No Yes Yes 159 No Yes Yes 40 No Yes No 25 No Yes Yes 697 No Yes Yes 8051 No Yes Yes Type of study Number of participants Purported to assess flow (primary data) Nested case control 359 Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 400 No Yes Yes Prospective observational cohort 170 No Yes Yes Prospective observational cohort 304 No Yes Yes Prospective observational cohort 42 No Yes Yes Nested case-control 78 No Yes Yes 91 No Yes Yes 150 No Yes Yes 346 No Yes Yes 120 No Yes Yes 178 No Yes Yes 91 No Yes Yes Prospective observational cohort 203 No Yes Yes Prospective observational cohort 360 No Yes Yes Cross sectional 665 No Yes Yes Prospective observational cohort 346 No Yes Yes Study Type of study Number of participants Purported to assess flow (primary data) Poon, Zaragoza et al. (2008) Phupong and Dejthevaporn (2008) Venkat-Raman, Backos et al. (2001) Spencer, Cowans et al. (2008) Rang, van Montfrans et al. (2008) Parra-Cordero, Turan et al. (2007) Schiessl, Strasburger et al. (2007) Prospective observational cohort 905 Prospective observational cohort Piazze, Gioia et al. (2007) Simanaviciute and Gudmundsson (2006) Vainio, Kujansuu et al. (2005) Ay, Kavak et al. (2005) Shaarawy, Al-Sokkary et al. (2005) Anastasiadis, Avgidou et al. (2005) Yu, Papageorghiou et al. (2002) Yu, Papageorghiou et al. (2004) Schwarze, Nelles et al. (2005) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 13 No Yes Yes 28 No Yes Yes Prospective observational cohort 126 No Yes Yes Prospective observational cohort 86 No Yes Yes Study Type of study Axt-Fliedner, Schwarze et al. (2005) Prospective observational cohort Prospective interventional cohort Prospective observational cohort Boito, Struijk et al. (2004) Di Paolo, Volpe et al. (2003) Ochi, Kusanagi et al. (2003) Savvidou, Hingorani et al. (2003) Savvidou, Noori et al. (2008) Geipel, Berg et al. (2002) Delle Chiaie, Gramellini et al. (2001) Ohkuchi, Minakami et al. (2000) Delemarre, van Leest et al. (2000) Axt-Fliedner, Wrobel et al. (2000) Joern, Funk et al. (1999) Luzi, Caserta et al. (1999) Lees, Valensise et al. (1998) Tranquilli, Giannubilo et al. (2005) Morris, Fay et al. (1998) van den Elzen, Wladimiroff et al. (1996) Number of participants Purported to assess flow (primary data) 52 If yes, were volumetric data provided? Prospective observational cohort Retrospective case control Prospective observational cohort 83 No Yes Yes 256 No Yes Yes 30 No Yes Yes Prospective observational cohort 288 No Yes Yes Randomised controlled trial 127 No Yes Yes 194 No Yes Yes 102 No Yes Yes 30 No Yes Yes 40 No Yes Yes Case control 20 No Yes Yes Case control Prospective observational cohort 50 No Yes Yes 393 No Yes Yes Prospective observational cohort Prospective observational cohort Controlled trial Randomised controlled trial Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes No 31 No Yes No 12 No Yes No 89 No Yes No 38 No Yes Yes 11 No Yes No 123 No Yes Yes 65 No Yes Yes 68 No Yes Yes 28 No Yes Yes 300 No Yes Yes 33 No Yes Yes 320 No Yes Yes 1090 No Yes Yes Cross sectional 89 No Yes Yes Cross sectional 34 No Yes Yes Study Type of study Karinen, Rasanen et al. (1996) Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective observational cohort Yang, Yang et al. (1996) Grunewald, Kublickas et al. (1995) Yang and Wang (1995) Zamudio, Palmer et al. (1995) Feinkind, Nanda et al. (1992) Kofinas, Penry et al. (1992) Kofinas, Penry et al. (1991) Kofinas, Penry et al. (1990) Carroll (1990) Kofinas, Penry et al. (1989) Bracero, Jovanovic et al. (1989) Ferreira, Rezende et al. (2013) Yu, Ertl et al. (2013) Adali, Kurdoglu et al. (2012) Fujimaki, Watanabe et al. (2011) Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Number of participants Purported to assess flow (primary data) 12 If yes, were volumetric data provided? Study Type of study Sifakis, Akolekar et al. (2012) Prospective observational cohort Prospective observational cohort Prospective observational cohort Nanda, Yu et al. (2011) Foidart, Munaut et al. (2010) Goetzinger, Zhong et al. (2013) Jamal, Abbasalizadeh et al. (2013) Erkkola and Pirhonen (1992) Moore, Jarrett et al. (1988) Thoresen and Wesche (1988) Taylor, Burns et al. (1985) Palomba, Falbo et al. (2010) Kurjak, Kupesic-Urek et al. (1992) Czajkowski, Sienko et al. (2007) Jaffe and Friedman (1998) Kaminopetros, Higueras et al. (1991) Alcazar and Ruiz-Perez (2000) Maymon, Herman et al. (1995) Chen, Izumi et al. (1998) Mulders, Jongsma et al. (1988) Prospective observational cohort Prospective observational cohort Prospective cohort Prospective cohort Prospective observational cohort Prospective crosssectional Prospective observational cohort Cross-sectional observational Randomised controlled trial Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Study related to patients with preeclampsia If yes, comparison made with healthy control group? No Yes Yes 390 No Yes Yes 270 No Yes Yes 578 No Yes Yes 435 No Yes Yes 15 11 Yes Yes No No No No 1 Yes No No 45 Yes No No 146 Yes No No 62 Yes No No 53 Yes No No 10 Yes No No 55 Yes No No 178 Yes No No 30 Yes No No 123 Yes No No 41 Yes No No Number of participants Purported to assess flow (primary data) 180 If yes, were volumetric data provided? Study Type of study Mulders, Jongsma et al. (1989) Farmakides, Schulman et al. (1988) Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised controlled trial Prospective observational cohort Prospective interventional cohort Fugino, Ito et al. (1993) Stridsklev, Carlsen et al. (2014) Lunell, Garoff et al. (1991) Vaha-Eskeli, Pirhonen et al. (1991) Manninen, Aantaa et al. (2000) Pirhonen, Vaha-Eskeli et al. (1994) Yogev, Ben-Haroush et al. (2003) Guzman, Vintzileos et al. (1996) Suzuki (2006) Kurjak, Zudenigo et al. (1993) Florio, Severi et al. (2003) Florio, Calonaci et al. (2005) Nakatsuka, Takata et al. (2002) Nakatsuka, Habara et al. (2003) Deurloo, Bolte et al. (2009) Randomised trial Prospective interventional cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective observational cohort Number of participants Purported to assess flow (primary data) If yes, were volumetric data provided? Study related to patients with preeclampsia 99 Yes No No 149 Yes No No 73 Yes No No 231 Yes No No 55 Yes No No 17 Yes No No 44 Yes No No 26 Yes No No 30 Yes No No 10 Yes No No 64 Yes No No 108 Yes No No 55 Yes No No 57 Yes No No 12 Yes No No 104 Yes No No 97 Yes No No If yes, comparison made with healthy control group? Study Kurjak, Zalud et al. (1994) Janbu, Koss et al. (1985) Jauniaux, Johnson et al. (1994) Ducros, Bonnin et al. (2002) Oosterhof, Wichers et al. (1993) Bewley, Chard et al. (1993) Ghosh, Breborowicz et al. (2006) Guedes-Martins, Cunha et al. (2014) Bar, Mashiah et al. (2001) Dillon, Case et al. (1993) Cohen-Overbeek, Jahoda et al. (1990) Pellizzari, Pozzan et al. (2002) Hollis, Prefumo et al. (2003) Dorman, Shulman et al. (2002) Li, Gudmundsson et al. (2003) Stonek, Hafner et al. (2008) Campbell, Black et al. (2000) Number of participants Purported to assess flow (primary data) If yes, were volumetric data provided? Study related to patients with preeclampsia 188 Yes No No 53 Yes No No 42 Yes No No 10 Yes No No 21 Yes No No 183 Yes No No 217 Yes No No 103 Yes No No 65 Yes No No 45 Yes No No 17 Yes No No 81 Yes No No Cross sectional observational 265 Yes No No Prospective observational cohort 995 Yes No No Prospective observational cohort 81 Yes No No 1955 Yes No No 1309 Yes No Yes Type of study Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Cross sectional Prospective observational cohort Prospective observational cohort Prospective interventional trial Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort If yes, comparison made with healthy control group? Yes Study Type of study Simmons, Hennessy et al. (2000) Prospective observational cohort Prospective observational cohort Retrospective crosssectional Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Randomised controlled trial Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Parra, Rodrigo et al. (2005) Sankaran, Prefumo et al. (2009) Ghi, Youssef et al. (2009) Meler, Figueras et al. (2010) Carbillon, Uzan et al. (2004) Arduini, Rizzo et al. (1987) Joern and Rath (1998) Becker, Vonk et al. (2002) Mulders, Jongsma et al. (1988) Grunewald, Nisell et al. (1994) Schulman, Ducey et al. (1987) Meizner, Paran et al. (1992) Mello, Parretti et al. (2003) Cacciatore, Halmesmaki et al. (1998) Yoneyama, Sawa et al. (1996) Ramsay, De Belder et al. (1994) Number of participants Purported to assess flow (primary data) If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? 19 Yes No Yes Yes 1447 Yes No Yes Yes 2035 Yes No Yes Yes 99 Yes No Yes No 120 Yes No Yes No 263 Yes No Yes Yes 60 Yes No Yes Yes 142 Yes No Yes Yes 7508 Yes No Yes Yes 73 Yes No Yes Yes 32 Yes No Yes Yes 31 Yes No Yes Yes 20 Yes No Yes No 106 Yes No Yes Yes 17 Yes No Yes No 39 Yes No Yes No 25 Yes No Yes No Study Morris, Fay et al. (1996) Kurdi, Fayyad et al. (2004) Blumenfeld, Weiner et al. (1991) Myatt, Clifton et al. (2012) Aardema, Oosterhof et al. (2001) Li, Gudnason et al. (2005) Gomez, Figueras et al. (2006) Piccoli, Gaglioti et al. (2013) Ginosar, Nadjari et al. (2009) Fratelli, Rampello et al. (2008) Harville, Savitz et al. (2008) Lau, Lam et al. (2007) Cobellis, De Luca et al. (2006) Takata, Nakatsuka et al. (2002) Gunenc, Cicek et al. (2002) Beinder, Mohaupt et al. (1999) Kimura, Okamura et al. (1998) Type of study Number of participants Purported to assess flow (primary data) If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? 102 Yes No Yes Yes 779 Yes No Yes Yes Randomised controlled trial Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Retrospective case control Prospective observational cohort 67 Yes No Yes Yes 2188 Yes No Yes Yes 70 Yes No Yes No 570 Yes No Yes No 870 Yes No Yes Yes Retrospective case control 61 Yes No Yes Yes Prospective interventional cohort 10 Yes No Yes No Prospective observational cohort 76 Yes No Yes Yes 872 Yes No Yes Yes 2 Yes No Yes No 20 Yes No Yes Yes 99 Yes No Yes Yes 48 Yes No Yes Yes 34 Yes No Yes Yes 17 Yes No Yes Yes Prospective observational cohort Cross sectional Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Prospective observational cohort Prospective interventional cohort Study Type of study Ekici, Vicdan et al. (1996) Case study Prospective observational cohort Prospective observational cohort Prospective observational cohort Cross-sectional casecontrol Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Cross sectional observational Prospective observational cohort Prospective observational cohort Prospective observational cohort Thaler, Manor et al. (1990) Flo, Wilsgaard et al. (2010) Konje, Kaufmann et al. (2001) Flo, Widnes et al. (2014) Dickey and Hower (1996) Bower, Flack et al. (1995) Dickey and Hower (1995) Dickey and Hower (1995) Palmer, Zamudio et al. (1992) Ferrazzi, Rigano et al. (2011) Rigano, Ferrazzi et al. (2010) Hale, Schonberg et al. (2009) Bower, Vyas et al. (1992) Zamudio, Palmer et al. (1995) Pennati, Socci et al. (2008) Konje, Howarth et al. (2003) Yes If yes, were volumetric data provided? No Study related to patients with preeclampsia Yes 24 Yes Yes No 53 Yes Yes No 57 Yes Yes No 32 Yes Yes No 43 Yes Yes No 21 Yes Yes No 84 Yes Yes No 44 Yes Yes No 24 Yes Yes No 73 Yes Yes No 66 Yes Yes No 19 Yes Yes No 227 Yes Yes No 45 Yes Yes No 4 Yes Yes No 38 Yes Yes No Number of participants Purported to assess flow (primary data) 1 If yes, comparison made with healthy control group? No Study Type of study Jeffreys, Stepanchak et al. (2006) Prospective interventional cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Prospective observational cohort Cross-sectional casecontrol Flo, Wilsgaard et al. (2010) Julian, Wilson et al. (2009) Wilson, Lopez et al. (2007) Julian, Galan et al. (2008) Harrington, Carpenter et al. (1997) Browne, Toledo-Jaldin et al. (2011) Schauf, Mannschreck et al. (2004) Prospective observational cohort Number of participants Purported to assess flow (primary data) If yes, were volumetric data provided? Study related to patients with preeclampsia If yes, comparison made with healthy control group? 14 Yes Yes No 53 Yes Yes No 137 Yes Yes No 68 Yes Yes No 43 Yes Yes No 652 Yes Yes Yes Yes 210 Yes Yes Yes Yes 25 Yes Yes Yes No References Aardema, M. W., B. T. De Wolf, M. C. Saro, H. Oosterhof, V. Fidler and J. G. Aarnoudse (2000). "Quantification of the diastolic notch in Doppler ultrasound screening of uterine arteries." Ultrasound Obstet Gynecol 16(7): 630-634. Aardema, M. W., M. Lander, H. Oosterhof, B. T. De Wolf and J. G. Aarnoudse (2000). "Doppler ultrasound screening predicts recurrence of poor pregnancy outcome in subsequent pregnancies, but not the recurrence of PIH or preeclampsia." Hypertens Pregnancy 19(3): 281-288. Aardema, M. W., H. Oosterhof, A. Timmer, I. van Rooy and J. G. Aarnoudse (2001). "Uterine artery Doppler flow and uteroplacental vascular pathology in normal pregnancies and pregnancies complicated by pre-eclampsia and small for gestational age fetuses." Placenta 22(5): 405-411. Aardema, M. W., M. C. Saro, M. Lander, B. T. De Wolf, H. Oosterhof and J. G. Aarnoudse (2004). "Second trimester Doppler ultrasound screening of the uterine arteries differentiates between subsequent normal and poor outcomes of hypertensive pregnancy: two different pathophysiological entities?" Clin Sci (Lond) 106(4): 377-382. Abd el Aal, D. E. and W. Kunzel (1994). "Blood flow velocity in the uterine and external iliac arteries before and after termination of pregnancy." Eur J Obstet Gynecol Reprod Biol 53(1): 11-16. Abdelaziz, A., M. A. Maher, T. M. Sayyed, M. F. Bazeed and N. S. Mohamed (2012). "Early pregnancy screening for hypertensive disorders in women without apriori high risk." Ultrasound Obstet Gynecol 40(4): 398-405. Acacio, G. L. (2002). "Uterine artery Doppler patterns in abdominal pregnancy." Ultrasound Obstet Gynecol 20(2): 194-196. Adali, E., M. Kurdoglu, F. Adali, N. Cim, R. Yildizhan and A. Kolusari (2011). "The relationship between brachial artery flow-mediated dilatation, high sensitivity Creactive protein, and uterine artery doppler velocimetry in women with pre-eclampsia." Journal of Clinical Ultrasound 39(4): 191-197. Adali, E., Z. Kurdoglu, M. Kurdoglu, M. Kamaci, A. Kolusari and R. Yildizhan (2012). "Metastin levels in pregnancies complicated by pre-eclampsia and their relation with disease severity." J Matern Fetal Neonatal Med 25(12): 2671-2675. Agarwal, N., A. Suneja, S. Arora, O. P. Tandon and S. Sircar (2004). "Role of uterine artery velocimetry using color-flow Doppler and electromyography of uterus in prediction of preterm labor." J Obstet Gynaecol Res 30(6): 402-408. Akolekar, R., A. Syngelaki, L. Poon, D. Wright and K. H. Nicolaides (2013). 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Ultrasound Obstet Gynecol 16(7): 635-639. Aquilina, J., A. Barnett, O. Thompson and K. Harrington (2000). "Comprehensive analysis of uterine artery flow velocity waveforms for the prediction of preeclampsia." Ultrasound Obstet Gynecol 16(2): 163-170. Aquilina, J., O. Thompson, B. Thilaganathan and K. Harrington (2001). "Improved early prediction of pre-eclampsia by combining second-trimester maternal serum inhibin-A and uterine artery Doppler." Ultrasound Obstet Gynecol 17(6): 477-484. Arduini, D., G. Rizzo, M. R. Boccolini, C. Romanini and S. Mancuso (1990). "Functional assessment of uteroplacental and fetal circulations by means of color Doppler ultrasonography." J Ultrasound Med 9(5): 249-253. Arduini, D., G. Rizzo, C. Romanini and S. Mancuso (1987). "Utero-placental blood flow velocity waveforms as predictors of pregnancy-induced hypertension." Eur J Obstet Gynecol Reprod Biol 26(4): 335-341. Aristidou, A., M. C. Van den Hof, S. Campbell and K. Nicolaides (1990). "Uterine artery Doppler in the investigation of pregnancies with raised maternal serum alpha-fetoprotein." British journal of obstetrics and gynaecology 97(5): 431-435. Asnafi, N. and K. Hajian (2011). "Mid-trimester uterine artery Doppler ultrasound as a predictor of adverse obstetric outcome in high-risk pregnancy." Taiwanese Journal of Obstetrics and Gynecology 50(1): 29-32. Audibert, F., Y. Benchimol, C. Benattar, C. Champagne and R. Frydman (2005). "Prediction of Preeclampsia or Intrauterine Growth Restriction by Second Trimester Serum Screening and Uterine Doppler Velocimetry." Fetal Diagnosis and Therapy 20(1): 48-53. Audibert, F., I. Boucoiran, N. An, N. Aleksandrov, E. Delvin, E. Bujold and E. Rey (2010). "Screening for preeclampsia using first-trimester serum markers and uterine artery Doppler in nulliparous women." Am J Obstet Gynecol 203(4): 383.e381-388. Axt-Fliedner, R., A. Schwarze, I. Nelles, C. Altgassen, M. Friedrich, W. Schmidt and K. Diedrich (2005). 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