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Influence of high renin substrate levels on renin-angiotensin system in pregnancy.
A marked elevation of renin substrate was found in plasma of 22 women in normal pregnancy as well as in 8 patients with toxemia. This elevation is most likely due to the increased secretion ofExpand
The use of Rauwolfia serpentina in hypertensive patients.
Rauwolfia serpentina has been used in India for many years to treat a variety of diseases that at first thought appear to bear little similarity to one another, but on reflection these various diseases could have a common denominator if they were all relieved symptomatically by a sedative or a "relaxing" drug such as Rau wolfia. Expand
The Quantitative Determination of Renin in the Plasma of Patients with Arterial Hypertension
A wide variation was found in the renin-substrate (angiotensinogen) content of plasma of patients with arterial hypertension, many of which had high concentrations of this factor. Expand
Upright bicycle exercise echocardiography after coronary artery bypass grafting.
Upright bicycle exercise echocardiography was successfully performed after CABG and the technique detected and accurately localized nonrevascularized and revascularized vessels. Expand
Reflex sympathetic dystrophy of the upper extremity (hand-shoulder) syndrome).
It should be emphasized that the inability either to observe or to obtain a history of antecedent injury does not justify more elaborate differentiation of this phenomenon, and it seems reasonable to point out this. Expand
Blood Pressure Responses to the Valsalva Maneuver in Cardiac Patients with and without Congestive Failure
Experimental and clinical observations in patients indicate that this "failure response" is due to elevation of the right ventricular diastolic pressure, which interferes with the normal obstruction of venous return during the blowing effort of the Valsalva maneuver. Expand
Exercise echocardiographic detection of coronary artery disease in women.
Exercise echocardiography has a clinically useful level of sensitivity and specificity for the detection of coronary artery disease in women and provides diagnostic information in women presenting with atypical chest pain and in those who have a nondiagnostic exercise ECG. Expand
The cardiohemodynamic effects of venous congestion of the legs or of phlebotomy in patients with and without congestive heart failure.
Observations by Howarth, McMichael, and SharpeySchafer on the effects of phlebotomy and of venous congestion of the extremities in patients with congestive heart failure supported the concept that the level of right atrial pressure is an important factor in determining cardiac output. Expand