* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Complications presentation - TEACH | Training in Early Abortion for
Survey
Document related concepts
Transcript
Managing Hemorrhage as a Complication of Uterine Aspiration Uterine Aspiration Indications: Miscarriage management Incomplete abortion Failed medication abortion Therapeutic abortion Safety: Minimal risk <0.05% of major complications (needing hospital care) Weitz T AJPH 2013 Safety? Mortality / 100,000 Uterine Aspirations or Births Deaths per 100,000 14 12.7 12 10 8 6.6 6 4 2 3.7 0.2 0.3 0.6 1.8 0.6 0 <9 11-12 16-20 Births Weeks since last menstrual period Guttmacher 2014 Bartlett 2004 Relative Risk of Fatal Complication Pregnancy & Childbirth 11 <1.0 Abortion 2.6 Laparoscopic Sterilization 1.5 Hormonal Contraception 1 6 11 Per 100,000 Woman Years by Exposure Guttmacher Institute 2014 Earlier Procedures are Safer-- CDC’s Abortion Mortality Surveillance System Currently, gestational age = strongest risk factor for abortion-related mortality Lowest risk of death: abortions < 8 weeks Mortality risk is increased 38% for each additional week of pregnancy Bartlett LA, Obstet Gynecol. 2004 Abortion-Related Mortality 1st Trimester: Infection 1st (33%) Hemorrhage 2nd (14%) 2nd Trimester: Hemorrhage 1st (40%) Paul M. NAF Textbook. 2009 Emergency Prevention Emergency carts; memory cards on site Appropriate patient selection Careful dating (clinical +/- ultrasound (US)) Pre-op labs: Hgb Adequate cervical preparation Vasopressin in cervical block > 12 wks (Edelman 2006) Uterotonics available Use closed-loop emergency communications Transfer agreements w/ nearby hospitals Procedural Pearls Correlate exam and dilation for axis Avoid overconfidence Develop 6th sense Low threshold to use aids: os finders, US Careful eval. of products of conception Develop stress readiness TEACH Simulation Innovations Papaya: a memorable model to practice MVA & PCB Historically used as an abortifacient Dragon fruit = Pitaya: helpful model to practice complication mgmt Historically thought to be helpful in pregnancy Paul M, Fam Med 2005; Goodman S, NAF 2013 Case 1 24 y/o G4P3, 8w5d days in your office to manage an early pregnancy loss (intrauterine fetal demise) confirmed by ultrasound. During her procedure, she has unexpected bleeding, the MVA quickly fills up with blood You empty it, recharge and it again fills. You ask your assistant to prepare another MVA but it promptly fills when attached to cannula. What do you suspect? What do you do? Demonstration and Group Brainstorm Causes of Hemorrhage 4 Ts Tissue: Retained Clot, Tissue, Hematometra Tone: Uterine Atony Trauma: Perforation, Cervical Lacerations Thrombin: Rare Bleeding Disorders, DIC ALSO, AAFP, 2014 Risk Factors for Hemorrhage Cause Risk Factors Tissue Incomplete procedure Less surgical experience Hematometra Abnormal placentation Tone Increasing EGA Prior C/S Previous obstetrical hemorrhage Increasing maternal age * General anesthesia Trauma Uterine flexion Increasing EGA Nulliparity Inadequate cervical dilation Thrombin Personal / FH bleeding or disorder Anticoagulation (esp. increasing EGA) Kerns J, SFP Guideline 2012 ALSO, AAFP, 2014 Algorithm – 6 T’s 6 T’s : 2 steps each 4 T’s (Tissue, Tone, Trauma, Thrombin) Treatment plan Transfer Tissue 4 Ts: Think tissue first in uterine aspiration setting Re-aspiration Tone (Atony) Medications Misoprostol 800-1000 mcg SL/ BU/ PR Methergine 0.2 mg IM, IC, IV (HTN) Minimal evidence for 1 agent over other Massage Kerns J, SFP Guideline, 2012 Trauma Assess bleeding source Walk cervix (or clamp if active bleeing) Cannula test Ultrasound Think perforation if free fluid Free fluid in cul-de-sac Thrombin Bleeding history Appropriate tests clot test, repeat hgb, coagulation tests Note: Women taking anticoagulants did not have clinically significant increased VB < 12 weeks Kaneshiro B, Contraception, 2011 Kern J, SFP Guideline 2012 Additionally Treatment Start IVF Balloon tamponade (30-80 cc) Transfer Assess VS q 5 minutes Initiate transfer (Teamwork with a leadership role) Communicate with patient & delegate roles Stay calm under pressure Individual Simulation Groups of 3 1 provider, 1 assistant, 1 tester 15 minutes for each provider; 1-2 run throughs 1 point for each step Please complete and hand-in assessment These patients don’t respond to usual measures Give provider opportunity to think through steps Review Hemorrhage Algorithm – 6 T’s Recognize heavy bleeding; initiate algorithm 6 T’s : 2 steps each 4 T’s (Tissue, Tone, Trauma, Thrombin) Treatment Transfer Case 2 22 y/o G2P0 woman after uncomplicated uterine aspiration for a failed medication abortion During her procedure, she has unexpected bleeding, and does not respond to management steps. DDx? Evaluation? Case 3 33 y/o G4P3 woman, h/o cesarean section x 2, 10 wk EGA, for abortion, with a retroflexed uterus Dilation is mildly difficult While inserting cannula into retroflexed uterus, you feel cannula get hung up at one point, and then slide in easily without a “stopping point.” Patient feels something sharp and points to her lower abdomen. Prevention? DDx? What do you do? Trauma: Uterine Perforation 1st Tri: Fundal Advanced GA Few complications More likely lateral Bleed more Incidence 0.1 – 3 / 1000 Kerns J, SFP Guideline 2012 Emergencies Specific to Surgical Abortion: Trauma: Uterine Perforation Three types “Benign” - midline with blunt instrument, no suction “Intermediate” – perforation with suction on, no abdominal contents are seen or serious bleeding “Serious” - perforation with suction on, and abdominal contents (bowel, omentum, etc.) seen or heavy bleeding occurs How to Prevent? Increasing experience Careful exam; re-examine if necessary Shorter wide speculum Traction on tenaculum Posterior placement for a retro-flexed uterus Os finder Use ultrasound guidance early Consider rigid curved cannula to get angle Cervical ripening with misoprostol Emergencies Specific to Surgical Abortion: Trauma: Uterine Perforation If prior to start of abortion: STOP immediately INFORM of what is happening US: re-identify uterine cavity, evaluate bleeding OBSERVE in recovery room 1-1/2- 2 hours Antibiotics If stable, d/c home with phone follow-up x 1-2 days Reschedule procedure 1-2 weeks later Alternatively, at clinician discretion, complete procedure under US guidance Emergencies Specific to Surgical Abortion: Trauma: Uterine Perforation Type 2 - “Intermediate Risk” Suction on; no excess bleeding or abd contents Stop suction Remove cannula without suction US to re-identify uterine cavity, evaluate bleeding May occur at end of procedure → uterus empty OBSERVE 1-1/2- 2 hours or send for observation Antibiotics At clinician discretion, complete procedure under US guidance or with laparoscopic visualization Emergencies Specific to Surgical Abortion: Trauma: Uterine Perforation Type 3 - “Serious Risk” Perforation with suction on Intra-abdominal contents seen in cervix or POC +/- Severe pain or excessive bleeding Stop procedure immediately US to identify uterine cavity, evaluate bleeding Antibiotics; re-check hgb & abdomenal exam Must be transferred, usually operated on (at the discretion of the admitting physician) Stable patient may be evaluated using laparoscopy But usually lapartomy to run bowel As needed: UA Embolization, Hysterectomy Emergencies Specific to Surgical Abortion: Trauma: Cervical Laceration Pathophysiology May occur inadvertently during sounding or dilation Or withdrawing sharp fetal parts Diagnosis Laceration obvious at time of procedure or after Persistent, bright red bleeding after procedure Examination Walk cervix with o-rings If visible: note location, length If not visible: cannula test: start at fundus, slowly withdraw to ID site Emergencies Specific to Surgical Abortion: Trauma: Cervical Laceration Management External/Low Cervical lac < 2 cm in length usually heal without leaving a defect and require no repair Pressure +/- vasopressin, silver nitrate, monsels Exception → brisk bleeding that continues → repair High Consider vasopressin, clamping Often require surgical repair in OR Hospital Transfer Inform front office staff Duplicate pertinent charting Notify ER / OB physician Notify your medical director Summary Uterine aspiration is a relatively safe procedure Hemorrhage is one cause of abortion-related mortality. 50% have no risk factors so critical to prepare “Tissue” is more common cause after aspiration than postpartum, where tone (atony) 70%. 40% of post-aspiration hemorrhage may be controlled by medications alone. Kerns, SFP Guideline 2012 Key Points Keep good habits: Develop 6th sense Avoid procedural overconfidence Have low threshold to use tools: os finders, ultrasound Call consultants as needed Check POC & quantitative hCGs as needed Develop stress readiness Delegate and used closed-loop communications Questions? Thank you Please fill out evaluations References Weitz TA et al., Safety of aspiration abortion performed by NPs, CNMs, and Pas under a California legal waiver, AJPH, 2013, 103(3):454–461. Guttmacher Institute; An overview of abortion in the US, Feb 2014 Bartlett LA et al. Risk factors for legal induced abortion-related mortality in the US. Obstet Gynecol. 2004 Apr;103(4):729-37. Paul M. Management of unintended &abnormal pregnancy, NAF Textbook, 2009 Paul M, Papaya: a simulation model for training in uterine aspiration. Fam Med 2005 Apr;37(4):242-4. Goodman S, Teaching surgical skills with simulation models - Reproductive education in medical education. Pre-Conference Workshop, 37th Annual NAF Meeting, April 2013 ALSO, AAFP, Postpartum Hemorrhage Chapter, 2014 Kerns J. Management of postabortion hemorrhage: release date November 2012 SFP Guideline. Contraception. 2013 Mar;87(3):331-42. Kaneshiro B et al. Blood loss at the time of first-trimester surgical abortion in anticoagulated women.Contraception. 2011 May;83(5):431-5.