Biventricular Pacemakers (Cardiac Resynchronization Therapy) for
... mortality benefit. Several studies report a decrease in hospitalizations and mortality for class II or combined class I/II patients, but no studies provide evidence of treatment benefit on functional status or quality-of-life outcomes. Despite the lower level of evidence available for mild (class II ...
... mortality benefit. Several studies report a decrease in hospitalizations and mortality for class II or combined class I/II patients, but no studies provide evidence of treatment benefit on functional status or quality-of-life outcomes. Despite the lower level of evidence available for mild (class II ...
Rhythm
... rhythm may be regular – Pacemaker Site: ectopic site in the atria; underlying rhythm has its own pacemaker site – P Waves: earlier than next expected P wave; positive in lead II; may not look like other P waves present – P-R Interval: usually normal for the PAC – R-R Interval: unequal since PACs pre ...
... rhythm may be regular – Pacemaker Site: ectopic site in the atria; underlying rhythm has its own pacemaker site – P Waves: earlier than next expected P wave; positive in lead II; may not look like other P waves present – P-R Interval: usually normal for the PAC – R-R Interval: unequal since PACs pre ...
Full text - Nasjonalt kunnskapssenter for helsetjenesten
... Minnesota Living with Heart Failure Questionnaire both at 6 and 12 months was in favour of the intervention group. Mean and standard deviation were 45 (26) and 51 (25) at 6 months, and 47 versus 57 at 12 months, for the intervention and the control group respectively. We evaluated the quality of the ...
... Minnesota Living with Heart Failure Questionnaire both at 6 and 12 months was in favour of the intervention group. Mean and standard deviation were 45 (26) and 51 (25) at 6 months, and 47 versus 57 at 12 months, for the intervention and the control group respectively. We evaluated the quality of the ...
Myocardial oxygen consumption, oxygen supply/demand
... Pairs of 5 MHz cylindrical piezoelectric crystals (0.06 inches outside diameter, 0.06 inches in length, 0.015 inches thick; Vernitron, Columbus, OH) were implanted in the myocardium served by the anterior descending coronary artery and the anterolateral basal region within the circumflex artery terr ...
... Pairs of 5 MHz cylindrical piezoelectric crystals (0.06 inches outside diameter, 0.06 inches in length, 0.015 inches thick; Vernitron, Columbus, OH) were implanted in the myocardium served by the anterior descending coronary artery and the anterolateral basal region within the circumflex artery terr ...
Biventricular Pacemakers (Cardiac Resynchronization Therapy) for
... mortality benefit. Several studies report a decrease in hospitalizations and mortality for class II or combined class I/II patients, but no studies provide evidence of treatment benefit on functional status or quality-of-life outcomes. Despite the lower level of evidence available for mild (class II ...
... mortality benefit. Several studies report a decrease in hospitalizations and mortality for class II or combined class I/II patients, but no studies provide evidence of treatment benefit on functional status or quality-of-life outcomes. Despite the lower level of evidence available for mild (class II ...
Estimation of maximal oxygen consumption and heart rate recovery
... lower cardiovascular and total mortality.1 However direct measurement of peak oxygen consumption by incremental exercise is time consuming, requires appropriate expertise, and is not entirely without risk.2 Step testing combined with measurement of heart rate is a convenient, safe and inexpensive su ...
... lower cardiovascular and total mortality.1 However direct measurement of peak oxygen consumption by incremental exercise is time consuming, requires appropriate expertise, and is not entirely without risk.2 Step testing combined with measurement of heart rate is a convenient, safe and inexpensive su ...
Victoria Yuskaitis Biology 111: Briggs The effects of exercise, gender
... that women have lower VO2 max (the maximum ability to intake oxygen during exercise) than men (Sloan et. al. 2009; George et. al. 2009), also supporting my findings. Other studies, however, show that heart rate recovery is more rapid in women (Antelmi et. al. 2008). An important factor to consider, ...
... that women have lower VO2 max (the maximum ability to intake oxygen during exercise) than men (Sloan et. al. 2009; George et. al. 2009), also supporting my findings. Other studies, however, show that heart rate recovery is more rapid in women (Antelmi et. al. 2008). An important factor to consider, ...
Comparison of pulmonary uptake with transient cavity dilation after
... measured in units of standard deviations at the angle where they occurred and corrected for the radius of the short axis section to adjust for relative defect size in relation to the entire left ventricle. A redistribution score was calculated in an analogous manner from the redistribution images an ...
... measured in units of standard deviations at the angle where they occurred and corrected for the radius of the short axis section to adjust for relative defect size in relation to the entire left ventricle. A redistribution score was calculated in an analogous manner from the redistribution images an ...
A simple bedside test of 1-minute heart rate variability during deep
... also calculated by mean ± SD of all R-R intervals that were measured during the 1-minute test. This kind of analysis was performed in other studies during longer recording periods but was not done with the short deep breathing test. We found that 90 patients (48.9%) had an SD of less than 50 msec (T ...
... also calculated by mean ± SD of all R-R intervals that were measured during the 1-minute test. This kind of analysis was performed in other studies during longer recording periods but was not done with the short deep breathing test. We found that 90 patients (48.9%) had an SD of less than 50 msec (T ...
The Microcirculation of the Human Heart: End
... past decade. The possibility that appropriate interventions may salvage ischemic myocardium otherwise destined for necrosis in this region motivated this attention. The existence of such a zone, however, has been accepted by many investigators without regard to the anatomic arrangement of the corona ...
... past decade. The possibility that appropriate interventions may salvage ischemic myocardium otherwise destined for necrosis in this region motivated this attention. The existence of such a zone, however, has been accepted by many investigators without regard to the anatomic arrangement of the corona ...
Pectus excavatum
... pseudonyms describing the same deformity of gations blame their abnormal findings on the dewhich the aetiology remains unknown and open to formity of the chest wall, but we believe that a speculation. Brodkin (1953) and Chin (1957) blame negative pressure behind the sternum is the main the xiphoid o ...
... pseudonyms describing the same deformity of gations blame their abnormal findings on the dewhich the aetiology remains unknown and open to formity of the chest wall, but we believe that a speculation. Brodkin (1953) and Chin (1957) blame negative pressure behind the sternum is the main the xiphoid o ...
Audio-Visual Based Recognition of Auscultatory Heart Sounds with
... and these results are shown in Figs. 4(a) and (b). Clear signal images for S1 and S2 can be seen; the amplitude of S1 is larger than that of S2 at the apex, while S1 and S2 are approximately the same amplitude at the LSB of the 4th rib. This is a typical heart sound described as a "lub-dup," and the ...
... and these results are shown in Figs. 4(a) and (b). Clear signal images for S1 and S2 can be seen; the amplitude of S1 is larger than that of S2 at the apex, while S1 and S2 are approximately the same amplitude at the LSB of the 4th rib. This is a typical heart sound described as a "lub-dup," and the ...
Cover Page The handle http://hdl.handle.net/19772 holds
... artery, the right ventricle also opens into a right aorta. This aorta communicates with the left aorta through the foramen of Panizza (Bertens et al., 2010; Johansen and Burggren, 1980), as can be seen in Fig. 4.2B (structure fp). When pressures in the vent ...
... artery, the right ventricle also opens into a right aorta. This aorta communicates with the left aorta through the foramen of Panizza (Bertens et al., 2010; Johansen and Burggren, 1980), as can be seen in Fig. 4.2B (structure fp). When pressures in the vent ...
Septal myocardial protection during cardiac surgery
... fashion while contracting, an action that is not directly related to those oblique fibers comprising the septum that normally twist during contraction. The importance of the septum versus the free wall was defined by several studies showing that right ventricular performance is not significantly imp ...
... fashion while contracting, an action that is not directly related to those oblique fibers comprising the septum that normally twist during contraction. The importance of the septum versus the free wall was defined by several studies showing that right ventricular performance is not significantly imp ...
Direct Percutaneous Left Ventricular Access and Port Closure
... Bethesda and Gaithersburg, Maryland; and Washington, DC Objectives This study sought to evaluate feasibility of nonsurgical transthoracic catheter-based left ventricular (LV) access and closure. Background Implanting large devices, such as mitral or aortic valve prostheses, into the heart requires s ...
... Bethesda and Gaithersburg, Maryland; and Washington, DC Objectives This study sought to evaluate feasibility of nonsurgical transthoracic catheter-based left ventricular (LV) access and closure. Background Implanting large devices, such as mitral or aortic valve prostheses, into the heart requires s ...
Atrial fibrillation in women
... differing attributable risk estimates for these risk factors. Women are more symptomatic when AF occurs and episodes are often associated with higher heart rates. Women with AF also appear to have a lower quality of life compared with men, and are more likely to develop stroke and have more resultin ...
... differing attributable risk estimates for these risk factors. Women are more symptomatic when AF occurs and episodes are often associated with higher heart rates. Women with AF also appear to have a lower quality of life compared with men, and are more likely to develop stroke and have more resultin ...
atrial fibrillation - Heart and Stroke Foundation
... Medicine is used to slow the conduction of electrical impulses from the top chambers (atria) to the bottom chambers (ventricles) of the heart and prevent the ventricles from beating too fast. A slower heart beat gives the ventricles more time to relax and fill with blood. The rate control medicine o ...
... Medicine is used to slow the conduction of electrical impulses from the top chambers (atria) to the bottom chambers (ventricles) of the heart and prevent the ventricles from beating too fast. A slower heart beat gives the ventricles more time to relax and fill with blood. The rate control medicine o ...
Understanding autonomic sympathovagal balance from short
... tory frequency. In addition, peripheral reflexes arising from thoracic stretch receptors also contribute to this so-called respiratory sinus arrhythmia (RSA). RSA is clearly abolished by atropine or vagotomy and the power of the HF component has been used as an index of the vagal drive. The LF compo ...
... tory frequency. In addition, peripheral reflexes arising from thoracic stretch receptors also contribute to this so-called respiratory sinus arrhythmia (RSA). RSA is clearly abolished by atropine or vagotomy and the power of the HF component has been used as an index of the vagal drive. The LF compo ...
The Mechanism of Adaptation of Left Atrial Stretch Congestive Heart
... Left atrial contractile force was measured using a WaltonBrodie strain gauge arch sutured to the left atrial appendage. A standard limb lead ECG was also recorded. Blood gases were periodically monitored (Radiometer Co., Copenhagen, Denmark) and kept within normal limits. The left cervical vagus was ...
... Left atrial contractile force was measured using a WaltonBrodie strain gauge arch sutured to the left atrial appendage. A standard limb lead ECG was also recorded. Blood gases were periodically monitored (Radiometer Co., Copenhagen, Denmark) and kept within normal limits. The left cervical vagus was ...
Mathematical modelling of cardiovascular fluid mechanics
... several authors have worked on different wave-transmission model, where multiple lumped block have been assembled in a tree-like structure, finally producing a better approximation of the local flow field. The advantages of this description were mainly consequent to the better description of local g ...
... several authors have worked on different wave-transmission model, where multiple lumped block have been assembled in a tree-like structure, finally producing a better approximation of the local flow field. The advantages of this description were mainly consequent to the better description of local g ...
Non-invasive coronary imaging: computed tomography or magnetic
... of ever larger numbers of detector rows (eight and 16). This will increase the spatial resolution in the z axis as well as decrease scan times allowing better coverage of the coronary circulation. A reduction in gantry rotation time may also allow improved temporal resolution and reduced motion arte ...
... of ever larger numbers of detector rows (eight and 16). This will increase the spatial resolution in the z axis as well as decrease scan times allowing better coverage of the coronary circulation. A reduction in gantry rotation time may also allow improved temporal resolution and reduced motion arte ...
Developmental and Physiological Aspects of the Chicken Embryonic
... techniques in the first lab and the development of the heart in the following lab. The four techniques the students utilize in this lab are: windowing a chicken egg, explantation of the living embryo into a dish of warmed saline, removal of the beating heart, and isolation of the heart chambers. The ...
... techniques in the first lab and the development of the heart in the following lab. The four techniques the students utilize in this lab are: windowing a chicken egg, explantation of the living embryo into a dish of warmed saline, removal of the beating heart, and isolation of the heart chambers. The ...
Safety of Coronary Reactivity Testing in Women With No Obstructive
... ischemia and is associated with an adverse cardiovascular prognosis compared with asymptomatic women (3,4,8–11). Both coronary artery spasm and endothelial dysfunction have been shown to be predictors of morbidity and mortality in patients with angina (12–16). Coronary spasm may result in MI, ventri ...
... ischemia and is associated with an adverse cardiovascular prognosis compared with asymptomatic women (3,4,8–11). Both coronary artery spasm and endothelial dysfunction have been shown to be predictors of morbidity and mortality in patients with angina (12–16). Coronary spasm may result in MI, ventri ...
Birger Axelsson - Umeå universitet
... Background: Myocardial failure and dysfunction is not uncommon during critical illness and following cardiac surgery. For optimal treatment, a better understanding of the effects of inotropic drugs is needed. In this thesis, two non-adrenergic mediated inotropes, milrinone and levosimendan, are stud ...
... Background: Myocardial failure and dysfunction is not uncommon during critical illness and following cardiac surgery. For optimal treatment, a better understanding of the effects of inotropic drugs is needed. In this thesis, two non-adrenergic mediated inotropes, milrinone and levosimendan, are stud ...
The Nanostim™ Leadless Pacemaker
... Understand traditional pacemaker complication risks More than four million people around the world have an implanted pacemaker or other cardiac rhythm management device, and more than 700,000 additional patients receive an implant every year. Although the incidence of pacemaker complications is rela ...
... Understand traditional pacemaker complication risks More than four million people around the world have an implanted pacemaker or other cardiac rhythm management device, and more than 700,000 additional patients receive an implant every year. Although the incidence of pacemaker complications is rela ...
Dextro-Transposition of the great arteries
dextro-Transposition of the great arteries (d-Transposition of the great arteries, dextro-TGA, or d-TGA), sometimes also referred to as complete transposition of the great arteries, is a birth defect in the large arteries of the heart. The primary arteries (the aorta and the pulmonary artery) are transposed.It is called a cyanotic congenital heart defect (CHD) because the newborn infant turns blue from lack of oxygen.In segmental analysis, this condition is described as ventriculoarterial discordance with atrioventricular concordance, or just ventriculoarterial discordance.d-TGA is often referred to simply as transposition of the great arteries (TGA); however, TGA is a more general term which may also refer to levo-transposition of the great arteries (l-TGA).Another term commonly used to refer to both d-TGA and l-TGA is transposition of the great vessels (TGV), although this term might have an even broader meaning than TGA.