Results 341 to 350 of about 5,069,987 (401)

Perioperative Right Ventricular Pressure Monitoring in Cardiac Surgery.

Journal of Cardiothoracic and Vascular Anesthesia, 2019
Right ventricular (RV) dysfunction is a cause of increased morbidity and mortality in both cardiac surgery and noncardiac surgery and in the intensive care unit. Early diagnosis of this condition still poses a challenge.
Meggie Raymond, L. Grønlykke, É. Couture, G. Desjardins, J. Cogan, J. Cloutier, Y. Lamarche, P. L’allier, H. Ravn, P. Couture, A. Deschamps, M. Chamberland, C. Ayoub, J. Lebon, Marco Julien, J. Taillefer, A. Rochon, A. Denault   +17 more
semanticscholar   +1 more source

Left ventricular pressure effects on right ventricular pressure and volume outflow

Catheterization and Cardiovascular Diagnosis, 1990
AbstractMassive destruction of the right ventricular free wall has been shown to cause only mild hemodynamic alterations. Further, the derivative of right ventricular (RV) pressure (P) is broad or double peaked, with one peak occurring coincidentally with peak left ventricular (LV) dP/dt. Both observations suggest a direct LV assistance to RV function.
R J, Damiano, J L, Cox, J E, Lowe, W P, Santamore   +3 more
openaire   +2 more sources

High-Pressure Ventricular Septal Defects

JAMA: The Journal of the American Medical Association, 1964
Forty patients with preoperative systolic pulmonary pressures exceeding 80 mm Hg were analyzed by recatheterization four months to five years postoperatively. Thirty-two were found to be asymptomatic. Improvement in heart size and pulmonary vascular markings were noted, as well as reduction of pulmonary hypertension.
C W, LILLEHEI, M J, LEVY, P, ADAMS, R C, ANDERSON   +3 more
openaire   +2 more sources

Extracardiac pressure and ventricular haemodynamics

Cardiovascular Research, 1987
To investigate the relative influence of pericardial and intrathoracic pressures on left and right ventricular diastolic and systolic pressures two experimental groups were studied: group 1-10 open chest dogs with a controlled pericardial effusion; and group 2 - five closed chest dogs with a controlled pneumothorax at constant transpulmonary pressure ...
J S, Janicki, K T, Weber, J, Loscalzo, S, Shroff   +3 more
openaire   +2 more sources

Under-pressure: Right Ventricular Infarction

The American Journal of Medicine, 2015
PRESENTATION When a 60-year-old woman’s electrocardiogram (ECG) indicated both anterior and inferior ST-segment elevation myocardial infarction, it was unclear which artery was blocked until treatment with nitroglycerin and morphine rendered her hypotensive.
Andrew, Peters, Vladimir, Lakhter, Riyaz, Bashir   +2 more
openaire   +2 more sources

Left ventricular effects on right ventricular developed pressure

Journal of Applied Physiology, 1976
The possibility that left ventricular (LV) performance might affect right ventricular (RV) function through the myocardium was examined by using isolated, flow-perfused, paced rabbit hearts beating isovolumically. ReducingLV volume from its optimal volume to zero caused a 5.7% decrease (N = 10, Pless than 0.001) in right ventricular developed pressure
W P, Santamore, P R, Lynch, J L, Heckman, A A, Bove, G D, Meier   +4 more
openaire   +2 more sources

Correlation of right ventricular pressure with right ventricular weight

American Heart Journal, 1963
Abstract The weight of the right ventricle expressed as a per cent of the total myocardial weight (RVT × 100) was related to right ventricular pressure in the neonatal puppy. It was shown that during the first 4 weeks of life the regression curves of the right ventricular pressure and RVT were strikingly similar, thus establishing this quantitative ...
K H, AVERILL, W W, WAGNER, J H, VOGEL
openaire   +2 more sources

“Auricularization” of right ventricular pressure curve

American Heart Journal, 1961
Abstract Two cases are presented which show particular hemodynamic patterns, characterized by the recording of an auricular pressure curve from the right ventricle and the main pulmonary artery. Anatomic study proved the clear distinction between the two subjects.
S, DALLA VOLTA, G, BATTAGLIA, E, ZERBINI
openaire   +2 more sources

Regulation of left ventricular pressure fall

European Heart Journal, 1990
Left ventricular pressure (LVP) fall is a manifestation of relaxation and is therefore regulated by non-uniformity and load, besides regulation by muscle inactivation. Non-uniformity and load are important and independent regulators of LVP fall. Non-uniformity induces a premature onset and decreased rate of LVP fall. With regard to load, the effects of
Gillebert, Thierry C., Brutsaert, Dirk L.   +1 more
openaire   +3 more sources

Ventricular pressure-volume relations in vivo

European Heart Journal, 1992
A number of fundamental mechanical properties of cardiac muscle as well as of the total ventricle are discussed. These include: Starling's law, shortening deactivation, homeometric autoregulation, and so-called hyperactivation associated with a small amount of ejection.
J, Baan, E T, van der Velde, P, Steendijk   +2 more
openaire   +2 more sources