Journal ArticleDOI
Does Pulsatile Flow Influence the Incidence of Postoperative Hypertension
Roderick W. Landymore,David A. Murphy,Kinley Ce,J.C. Parrott,E.A. Moffitt,W.J. Longley,A.A. Qirbi +6 more
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TLDR
It is concluded that catecholamines and the renin-angiotensin system contribute to the production of postoperative hypertension and that pulsatile flow diminishes renin stimulation, which results in a decreased incidence of postoperatively hypertension.About:
This article is published in The Annals of Thoracic Surgery.The article was published on 1979-09-01. It has received 62 citations till now. The article focuses on the topics: Pulsatile flow & Postoperative Hypertension.read more
Citations
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Journal ArticleDOI
Release of vasoactive substances during cardiopulmonary bypass.
TL;DR: This essay briefly reviews the actions, sources, and perturbations of the approximately 25 vasoactive substances known or believed to be altered by cardiopulmonary bypass, and provides an introductory reference list.
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Pulsatile and nonpulsatile cardiopulmonary bypass: review of a counterproductive controversy.
TL;DR: Failure to quantitate adequately the pulsatile components of flow in these studies prevents differentiation between effective and ineffective forms of pulsatile flow and makes comparison of studies difficult.
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Effects of pulsatile perfusion on plasma catecholamine levels and hemodynamics during and after cardiac operations with cardiopulmonary bypass
TL;DR: The results suggest that pulsatile perfusions, when compared with nonpulsatile perfusion, can attenuate the catecholamine stress response to cardiopulmonary bypass, reduce the fluid overloading of patients, and improve the postoperative recovery period as evaluated by tracheal intubation time.
Journal ArticleDOI
Comparative clinical study of pulsatile and non-pulsatile perfusion in 350 consecutive patients.
TL;DR: A prospective study of mortality, haemodynamic morbidity, and haematological status, in 350 consecutive adult patients submitted to cardiopulmonary bypass procedures in a surgical unit over a 12-month period of pulsatile perfusion.
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Left ventricular ejection fraction during cardiac surgery: a two-dimensional echocardiographic study.
TL;DR: It is concluded that correction of pure mitral and aortic valvular lesions produces characteristic alterations in ejection fraction in the immediate postoperative period and noninvasive assessment of left ventricular function by two-dimensional echocardiography during cardiac surgery appears feasible and could provide data important for clinical decision making in the early postoperatively period.
References
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Journal ArticleDOI
The renin system: Variations in man measured by radioimmunoassay or bioassay
TL;DR: Normal values for plasma renin activity (PRA) were defined in 52 normal subjects over the range of physiological variation which occurs in relation to changes in sodium balance, and physiologically, changes in substrate concentration are not normally determinants of the rate of angiotensin generation.
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Subendocardial ischemia after cardiopulmonary bypass.
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Systemic hypertension associated with coronary artery bypass surgery. Predisposing factors, hemodynamic characteristics, humoral profile, and treatment.
Roberts Aj,Andreas P. Niarchos,Valavanur A. Subramanian,Ronald M. Abel,Steven D. Herman,Jean E. Sealey,David B. Case,Robert P. White,Garland A. Johnson,John H. Laragh,Arthur J. Okinaka +10 more
TL;DR: Nitroprusside was shown to be effective in managing CABG hypertension, although other, more specific therapy may be preferable.
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Systemic hypertension following myocardial revascularization
TL;DR: Systemic hypertension was noted to be particularly frequent in the immediate postoperative period following myocardial revascularization procedures, and its frequency after coronary-arterial surgery, its transient course, and the apparent absence of other causes suggest that this hypertension might be related to some coronary pressor reflexes.
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Hemodynamic, metabolic, and hematologic effects of pulsatile cardiopulmonary bypass.
TL;DR: Cardiopulmonary bypass with pulsatile flow was found to offer the following statistically significant advantages: lower systemic vascular resistance (p) and lower systemicascular resistance (r) during extracorporeal circulation.