The effect of bilateral stellectomy upon the cerebral circulation of man.
نویسندگان
چکیده
منابع مشابه
Effect of stellectomy and vagotomy on ventricular refractoriness in dogs.
The influence of tonic sympathetic and parasympathetic nervous system activity on ventricular refractory period duration was studied in 13 mongrel dogs. Strength-interval curves were obtained from the apex of the right ventricular endocardium with a transvenous bipolar catheter. The effects of sympathetic activity were assessed by unilateral and bilateral stellectomies and tonic vagal effects w...
متن کاملTonic influence of the sympathetic nervous system on myocardial reactive hyperemia and on coronary blood flow distribution in dogs.
In two groups of dogs we studied the effect of right and/or left stellectomy on myocardial reactive hyperemia (RH) and on coronary blood flow distribution. In the first group of 14 conscious dogs, the percent repayment of flow debt produced by a 10-second occlusion of the left circumflex coronary artery was recorded with a Doppler ultrasonic flow probe and a hydraulic vascular occluder. The dog...
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Sympathetic influences on ventricular repolarization are not yet fully elucidated, despite their relevance to arrhythmogenesis. The sympathetic control of repolarization, measured from an endocardial monophasic action potential duration (APD) and from the QT interval, was investigated in 24 anesthetized cats. The effects of right and left stellectomy and of subsequent bilateral stellectomy or b...
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Background: To evaluate the effect of oxytocin on blood circulation of fetus and uterus by Doppler ultrasound. Materials and Methods: Forty six pregnant women were assigned to receive for indication of delivery intravenous oxytocin. Doppler velocitometry before and after administration of oxytocin for umbilical,middle cerebral artery and uterine artery were performed, and Pulsatility index (PI)...
متن کاملNeuroprotective Effect of Paroxetine on Memory Deficit Induced by Cerebral Ischemia after Transient Bilateral Occlusion of Common Carotid Arteries in Rat
Aims:Memory deficit is the most visible symptom of cerebral ischemia. The hippocampus is sensitive against cerebral ischemia. Oxidative stress and inflammation are involved in the pathological process after cerebral ischemic injury. Paroxetine has anti-oxidative and anti-inflammatory effects. In this study the effect of paroxetine on memory deficit after cerebral ischemia was investigated. Meth...
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عنوان ژورنال:
- The Journal of clinical investigation
دوره 30 1 شماره
صفحات -
تاریخ انتشار 1951