Dynamics of complete right ventricular failure in dogs maintained with an extracorporeal left ventricle.
نویسندگان
چکیده
By replacing the left ventricle of a dog with an extracorporeul pump, complete failure of the right ventricle (e.g., fibrillation) caused marked elevation of central venous pressure, the degree of elevation being a linear function of left ventricular output. In addition, expansion of the intnivascular volume was required in order to maintain circulation by the left ventricle alone. Edema formation was accentuated by the hypervolemia and venous hypertension.
منابع مشابه
An experimental study on pumpless extracorporeal membrane oxygenation (ECMO) support in a canine model.
This study was carried out to determine whether an extracorporeal membrane oxygenation (ECMO) support could be sufficiently conducted by the right ventricle alone from the viewpoint of the hemodynamics and blood gas state. Six infant dogs underwent a bypass between the left pulmonary artery and left atrium with an in-line oxygenator after a left pneumonectomy. Partial ECMO support was conducted...
متن کاملEvaluation of diastolic blood flow dynamic of the left ventricle in dogs with mitral valve regurgitation using vector flow mapping
Mitral valve regurgitation (MVR) is a common valvular disease in dogs. Hydrokinetic evaluation of the blood flow within the ventricles has become possible by vector flow mapping (VFM), which shows the blood flow within the ventricles in vector and vortex flows. Blood flow within the left ventricle of MVR dogs was compared at different stages of MVR and to that of normal dogs. 14 normal dogs and...
متن کاملVeno-right ventricular extracorporeal membrane oxygenation for thoracic surgery: an experimental study in dogs.
BACKGROUND Although the indications for extracorporeal membrane oxygenation (ECMO) have been extended, ECMO has yet to be used as a respiratory support system during thoracic surgery. The purpose of this experimental study was to investigate whether veno-right ventricular (veno-RV) ECMO can be used for thoracic surgery without mechanical ventilation. METHODS Acute experimental study: Veno-RV ...
متن کاملRIGHT VENTRICULAR FATTY INFILTRATION IN MITRAL STENOSIS, A RARE CAUSE OF SURGICAL FAILURE.
A 47 year-old female died after mitral valve replacement. Post-cardiopulmonary bypass right ventricle was not able to pump despite good left ventricular contractility. At microscopic examination, diffuse right ventricular fatty infiltration was found. We found no previous report of this pathology in patients with mitral stenosis
متن کاملApplication of centrifugal pump in right ventricular failure due to pulmonary artery hypertension. (A case report)
Background: It has not been yet developed a ost suitable method to treat right ventricular failure due to pulmonar artery hypertention resulted from ventricular arrhythia. Though some case reports about patients ready to heart transplant using left assist device or biventral assist device as bridge have been published in Journals, but nocase concerning application of centrifugal pump for treatm...
متن کاملذخیره 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 ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Circulation research
دوره 4 2 شماره
صفحات -
تاریخ انتشار 1956