Leg elevation compared with Trendelenburg position: effects on autonomic cardiac control
نویسندگان
چکیده
منابع مشابه
Respiratory effects of prolonged Trendelenburg position.
The Trendelenburg position has been severely criticized (Inglis and Brooke, 1956; Swain, 1960) but is still popular for pelvic surgery. One of the main complaints about this position is that it reduces ventilation as a result of pressure by the abdominal contents upon the diaphragm. This, of course, applies only to patients breaching spontaneously, because, if artificial ventilation is used, th...
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This study evaluated the effect of angiotensin II receptor blockade on cardiac autonomic control adaptation and urine output in response to acute isotonic volume load in patients with idiopathic dilated cardiomyopathy (DCM) and asymptomatic to mildly symptomatic heart failure. Left ventricular volumes and heart rate variability measurements were assessed at baseline and during intravenous salin...
متن کاملImplications for postoperative visual loss: steep trendelenburg position and effects on intraocular pressure.
Postoperative visual loss (POVL) is a rare but catastrophic complication after nonocular surgery. Previously POVL has been reported in lengthy, prone, lateral, or cardiopulmonary cases, with extreme blood loss, hemodilution, and hypotension. The author's index case of POVL following a lengthy operation in steep Trendelenburg position (ST) prompted study of the relationship between intraocular p...
متن کاملEffects of steep Trendelenburg position and pneumoperitoneum on middleear pressure in patients undergoing robotic radical prostatectomy.
BACKGROUND/AIM The aim of this study was to quantify the changes in middle ear pressure (MEP) during robot-assisted radical prostatectomy (RARP). MATERIALS AND METHODS Thirty patients undergoing RARP were included in this study. MEP was obtained at the following time points: awake (T1), postintubation (T2), pneumoperitoneum + 1 h of Trendelenburg position (T3), pneumoperitoneum + 2 h of Trend...
متن کاملThe Effects of Control Domain Position on Optimal Control of Cardiac Arrhythmia
We study the effects of control domain position on optimal control problem of cardiac arrhythmia. The well-established mathematical model, namely, the monodomain model, is used to represent the electrical behavior of the cardiac tissue. Two test cases are considered in this paper: the control domain for Test Case 1 is close to the excitation domain, while the control domain for Test Case 2 is a...
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ژورنال
عنوان ژورنال: British Journal of Anaesthesia
سال: 1994
ISSN: 0007-0912
DOI: 10.1093/bja/73.6.836