Perioperative Assessment of Diastolic Dysfunction
... Assessment of diastolic function should be a component of a comprehensive perioperative transesophageal echocardiographic examination. Abnormal diastolic function exists in ⬎50% of patients presenting for cardiac and high-risk noncardiac surgery, and has been shown to be an independent predictor of ...
... Assessment of diastolic function should be a component of a comprehensive perioperative transesophageal echocardiographic examination. Abnormal diastolic function exists in ⬎50% of patients presenting for cardiac and high-risk noncardiac surgery, and has been shown to be an independent predictor of ...
Myocardial Recovery and the Failing Heart
... with an improvement in the clinical manifestations and outcomes in heart failure, raising the interesting possibility that reverse remodeling is linked mechanistically to the observed improved heart failure outcomes. Although the precise cellular and molecular mechanisms that are responsible for the ...
... with an improvement in the clinical manifestations and outcomes in heart failure, raising the interesting possibility that reverse remodeling is linked mechanistically to the observed improved heart failure outcomes. Although the precise cellular and molecular mechanisms that are responsible for the ...
cardiology - Turner White
... discomfort, dizziness, and dyspnea at rest. Patients frequently complain of palpitations and dyspnea on exertion that progresses to shortness of breath at rest. They also may complain of general weakness, poor appetite, abdominal distention, atypical chest pain, and cough.1 When cardiac tamponade co ...
... discomfort, dizziness, and dyspnea at rest. Patients frequently complain of palpitations and dyspnea on exertion that progresses to shortness of breath at rest. They also may complain of general weakness, poor appetite, abdominal distention, atypical chest pain, and cough.1 When cardiac tamponade co ...
Heart rate modulates the slow enhancement of contraction due to
... pressure without artifacts during contraction. The deflated volume was associated with a negative diastolic pressure in all cases. In each study, left ventricular pressure was recorded while the balloon was at the deflated volume and after sudden expansion until the highest final level of peak systo ...
... pressure without artifacts during contraction. The deflated volume was associated with a negative diastolic pressure in all cases. In each study, left ventricular pressure was recorded while the balloon was at the deflated volume and after sudden expansion until the highest final level of peak systo ...
Aortic Valve Replacement
... complications and survival, to analyze whether postoperative heart failure can be detected using brain-type natriuretic peptide (BNP) as a predictive biomarker, to investigate the influence of PPM in bioprostheses with respect to recovery of left ventricular diastolic function and left ventricular m ...
... complications and survival, to analyze whether postoperative heart failure can be detected using brain-type natriuretic peptide (BNP) as a predictive biomarker, to investigate the influence of PPM in bioprostheses with respect to recovery of left ventricular diastolic function and left ventricular m ...
Colegio Interamericano de Radiología
... Pulmonary hypertension (PH) is defined as a group of diseases characterized by a progressive increase in the pulmonary vascular resistance leading to right ventricular (RV) failure and death. Functional capacity of the RV is the major determinant of prognosis in PH 1,2. Idiopathic PH is a rare condi ...
... Pulmonary hypertension (PH) is defined as a group of diseases characterized by a progressive increase in the pulmonary vascular resistance leading to right ventricular (RV) failure and death. Functional capacity of the RV is the major determinant of prognosis in PH 1,2. Idiopathic PH is a rare condi ...
... of ACP, and not necessarily because of ACP, has been emphasized in other publications. Studies show that the greatest risk of an unfavorable outcome could be determined by the pre-existence of other factors, such as: structural heart disease, systolic dysfunction (LVEF<40 %), left ventricular mass i ...
Measurement of Left Ventricular Diameter In the Dog by Cardiac
... sewn to the pericardium over the anterior surface of the right ventricle, just anterior to the exOrcuUlicn Resettcb, Vol. XXII, May 1968 ...
... sewn to the pericardium over the anterior surface of the right ventricle, just anterior to the exOrcuUlicn Resettcb, Vol. XXII, May 1968 ...
Fetal Arrhythmias: A Clinical Review
... Supraventricular tachycardia is the most common cause of the fetal tachycardia. Fetal magnetocardiography is an excellent method to control fetal arrhythmias and could help to clarify electrophysiological patterns of initiation and termination of re-entrant fetal supraventricular tachycardia. Five d ...
... Supraventricular tachycardia is the most common cause of the fetal tachycardia. Fetal magnetocardiography is an excellent method to control fetal arrhythmias and could help to clarify electrophysiological patterns of initiation and termination of re-entrant fetal supraventricular tachycardia. Five d ...
Full Title: Visceral Pericardium: Macromolecular - AJP
... opening angle was found (35.5 ± 4.0°) as well as a rightward shift in the ex vivo pressurevolume relationship before and after disruption and a decrease in LV passive stiffness at lower LV volumes (P<0.05). These data demonstrate the significant and previously unreported role that VP plays in the re ...
... opening angle was found (35.5 ± 4.0°) as well as a rightward shift in the ex vivo pressurevolume relationship before and after disruption and a decrease in LV passive stiffness at lower LV volumes (P<0.05). These data demonstrate the significant and previously unreported role that VP plays in the re ...
Repolarization Phase at Various Sites of the Right Atrium
... with the conventional ECG. The Ta wave is a deflection that has a direction opposite to that of the P wave. The current explanation of this is that the wave of atrial repolarization normally follows the same course as the wave of depolarization. Since the electrical charges in repolarization are opp ...
... with the conventional ECG. The Ta wave is a deflection that has a direction opposite to that of the P wave. The current explanation of this is that the wave of atrial repolarization normally follows the same course as the wave of depolarization. Since the electrical charges in repolarization are opp ...
Biventricular implantable cardioverter defibrillator use in
... misinterpreted as coordinated ventricular activity by the RV defibrillation lead, resulting in the prevention of DC shock initiation. However, during implantation testing, the device functioned appropriately during VF, at minimal atrial sensitivity, confirming that this should not occur. In summary, ...
... misinterpreted as coordinated ventricular activity by the RV defibrillation lead, resulting in the prevention of DC shock initiation. However, during implantation testing, the device functioned appropriately during VF, at minimal atrial sensitivity, confirming that this should not occur. In summary, ...
Effect of Rate on Left Ventricular Volumes and Ejection Fraction
... Received April 30, 1982; revision accepted July 30, 1982. Circulation 67, No. 2, 1983. ...
... Received April 30, 1982; revision accepted July 30, 1982. Circulation 67, No. 2, 1983. ...
Mathematical modelling of cardiovascular fluid mechanics
... in order to correct the low frequency inconsistency of the threeelement Windkessel model, the great majority of successive works has been using Westerhof’s version. However, the blood motion in the cardiovascular system is mainly a phenomenon of wave propagation and reflection, and arteries are far ...
... in order to correct the low frequency inconsistency of the threeelement Windkessel model, the great majority of successive works has been using Westerhof’s version. However, the blood motion in the cardiovascular system is mainly a phenomenon of wave propagation and reflection, and arteries are far ...
Ranolazine Reduces Remodeling of the Right Ventricle and
... ex vivo experimental settings, chronic RAN treatment reduced electrical heterogeneity (right ventricular-left ventricular action potential duration dispersion), shortened heart-rate corrected QT intervals in the right ventricle, and normalized RV dysfunction. Chronic RAN treatment also dose-dependen ...
... ex vivo experimental settings, chronic RAN treatment reduced electrical heterogeneity (right ventricular-left ventricular action potential duration dispersion), shortened heart-rate corrected QT intervals in the right ventricle, and normalized RV dysfunction. Chronic RAN treatment also dose-dependen ...
Arrhythmogenic Right Ventricular Dysplasia
... Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...
... Arrhythmogenic right ventricular dysplasia (ARVD) is a disorder in which normal myocardium is replaced by fibrofatty tissue. This disorder usually involves the right ventricle, but the left ventricle and septum also may be affected. Although the exact prevalence of ARVD is unknown, it is thought to ...
Evaluation Pulmonary Arterial End-Diastolic Pressure
... in 24 patients with normal left ventricular function and in 26 patients with left ventricular myocardial disease and elevated EDP (range 13 to 38 mm Hg; average 22 mm Hg). In patients with normal left ventricular function, the EDPs in the left ventricle and pulmonary artery were equal (range 5 to 12 ...
... in 24 patients with normal left ventricular function and in 26 patients with left ventricular myocardial disease and elevated EDP (range 13 to 38 mm Hg; average 22 mm Hg). In patients with normal left ventricular function, the EDPs in the left ventricle and pulmonary artery were equal (range 5 to 12 ...
Diagnosis and evaluation of pulmonary hypertension
... scleroderma who have PAH have a higher mortality than those without PAH,8,9 and recent clinical studies have indicated a 30% to 35% prevalence of PAH in scleroderma patients,10–12 although earlier retrospective studies based on autopsy or surgical pathology specimens reported a higher incidence.13,1 ...
... scleroderma who have PAH have a higher mortality than those without PAH,8,9 and recent clinical studies have indicated a 30% to 35% prevalence of PAH in scleroderma patients,10–12 although earlier retrospective studies based on autopsy or surgical pathology specimens reported a higher incidence.13,1 ...
rheumatic fever: an update - International Journal of Pharmacy and
... in patients with chorea. ESR is useful in following the course of disease since the levels decline as rheumatic activity subsides. Antigen Detection Tests ...
... in patients with chorea. ESR is useful in following the course of disease since the levels decline as rheumatic activity subsides. Antigen Detection Tests ...
The Association of Postoperative Right Ventricular Restrictive
... Background --- The increase in survival rate of Tetralogy of Fallot (TOF) patients lead to an increase in the number of post-op patients requiring critical follow-up. Abnormal Right Ventricular (RV) physiology is a significant long-term problem for these patients. Some studies show that RV restricti ...
... Background --- The increase in survival rate of Tetralogy of Fallot (TOF) patients lead to an increase in the number of post-op patients requiring critical follow-up. Abnormal Right Ventricular (RV) physiology is a significant long-term problem for these patients. Some studies show that RV restricti ...
The isovolumic relaxation to early rapid filling relation: kinematic
... 2008). Subjects were referred by their personal physician for elective diagnostic cardiac catheterization to determine the possibility of coronary artery disease. Prior to data acquisition, subjects provided signed, IRB approved informed consent for participation in accordance with Washington Univer ...
... 2008). Subjects were referred by their personal physician for elective diagnostic cardiac catheterization to determine the possibility of coronary artery disease. Prior to data acquisition, subjects provided signed, IRB approved informed consent for participation in accordance with Washington Univer ...
Sequence of Atrial Depolarization at Different Stages of
... embryo: (a) 26 min after removal of the embryo from the egg. Upper tracing was obtained from an electrode placed over the upper right side of the ventricular mass near the junction with right atrium. Lower tracing was obtained from electrode placed over the upper left side of the ventricle near the ...
... embryo: (a) 26 min after removal of the embryo from the egg. Upper tracing was obtained from an electrode placed over the upper right side of the ventricular mass near the junction with right atrium. Lower tracing was obtained from electrode placed over the upper left side of the ventricle near the ...
A finite difference model of O2 transport in aortic valve cusps
... three layers within the modeled cusp cross section. During systole, the three cusps of the aortic valve are pushed out toward the aortic wall and blood flows from the left ventricle into the aorta. During diastole, the cusps move together to form a seal to prevent regurgitation. In this formation, t ...
... three layers within the modeled cusp cross section. During systole, the three cusps of the aortic valve are pushed out toward the aortic wall and blood flows from the left ventricle into the aorta. During diastole, the cusps move together to form a seal to prevent regurgitation. In this formation, t ...
Influence of left ventricular lead position relative to scar location on
... Figure 1 Overview of the CircAdapt model and the simulation protocol. (A) shows the closed-loop circulation designed as a network of modules representing atrial and ventricular cardiac walls subdivided into patches, blood vessels (arteries and veins), cardiac valves (AV, aortic valve; MV, mitral val ...
... Figure 1 Overview of the CircAdapt model and the simulation protocol. (A) shows the closed-loop circulation designed as a network of modules representing atrial and ventricular cardiac walls subdivided into patches, blood vessels (arteries and veins), cardiac valves (AV, aortic valve; MV, mitral val ...
James M. Norton
... “. . . during diastole a greater influx of blood into the ventricle will cause the ensuing contraction to be more forceful. This may be thought of as a ‘preload’ stimulus since it was applied before contraction began.” (p. 76) “. . . he [Starling] controlled the right atrial pressure (and thereby th ...
... “. . . during diastole a greater influx of blood into the ventricle will cause the ensuing contraction to be more forceful. This may be thought of as a ‘preload’ stimulus since it was applied before contraction began.” (p. 76) “. . . he [Starling] controlled the right atrial pressure (and thereby th ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.