Coronary Artery - Right Ventricular

نویسنده

  • JOHN H. K. VOGEL
چکیده

THE GENESIS OF COMMUNICATIONS between the right ventricle and coronary arteries commonly associated with pulmonary atresia remains uncertain. Edwards' attributed the persistence of these communicating sinusoids to increased right ventricular pressure and emphasized the importance of right ventricular outflow obstruction, intact ventricular septum, and competence of the tricuspid valve. Other authors,2-5 based on the earlier work of Grant,6 have suggested that inadequate early right ventricular maturation fails to occlude the embryonic sinusoids which then persist as right ventricular to coronary artery fistulae. This report concerns a case in which pulmonary atresia, right ventricular-coronary artery fistulae, ventricular septal defect, and malformation of the tricuspid valve were all present.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Prognostic value of right ventricular myocardial performance index in patients undergoing coronary artery bypass surgery

 Abstract Background: Right ventricular myocardial performance index (RVMPI) is a Doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. The aim of this study is to compare prognostic value of RVMPI with global RV function in patients undergoing Coronary Artery Bypass Graft (CABG). Methods: In a longitudinal ...

متن کامل

Myocardial damage of the entire ventricular region in a patient with acute myocardial infarction

Technetium-99m-pyrophosphate (99mTc-PYP) has been used, in combination with thallium-201, to estimate the site and extent of myocardial infarcts. We report a case of acute myocardial infarction with severe coronary disease in which the distribution of 99mTc-PYP was extensive. A 78-year-old man presented with dyspnea, and a diagnosis of non-ST-segment elevation acute myocar...

متن کامل

High-risk Coronary Artery Bypass Grafting and Mitral Valve Replacement in a HIV Positive Patient

Certain subsets of high-risk mitral valve patients are not suitable candidates for transcatheter therapies. The objective of this report is to present a young patient with combined mitral valve and coronary artery disease to illustrate these challenges.In this report, we present a 47-year-old man with longstanding HIV infection who was referred with severe mitral regurgitation (MR) and profound...

متن کامل

Performance of the right ventricle under stress: relation to right coronary flow.

Right ventricular performance was studied relative to right coronary artery flow in the chloralose-anesthetized, open chest dog. The right coronary artery was cannulated for measurement and control of flow and pressure. Under control conditions, right coronary artery occlusion caused no change in cardiac output, or right and left ventricular pressures, although right ventricular contractile for...

متن کامل

Performance of the Right Ventricle under Stress : Relation to Right Coronary Flow HAROLD

artery occlusion caused no change in cardiac output, or right and left ventricular pressures, although right ventricular contractile force fell markedly. With right coronary artery flow intact, incremental pulmonary artery obstruction caused a corresponding decline in cardiac output and elevation of right ventricular end-diastolic pressure with eventual total right ventricular failure and syste...

متن کامل

Comparison of Treatment Outcomes in Off-pump Coronary Artery Bypass Graft and Medical Therapy in Patients with Triple-vessel Coronary Artery Disease and Severe Ventricular Dysfunction

Introduction: Heart failure is a major hazard for public health. Despite recent advance in medical therapy, there is not enough information on the outcome of off-pump coronary artery bypass (OPCAB) and medical therapy on the patients with severe ventricular dysfunction and triple-vessel (CAD). This study aimed to compare treatment outcomes and mortality rate in patients undergoing off-pump coro...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005