نتایج جستجو برای: induced hypotension
تعداد نتایج: 992700 فیلتر نتایج به سال:
BACKGROUND Intravenous adenosine infusion produces coronary and systemic vasodilatation, generally leading to systemic hypotension. However, adenosine-induced hypotension during stable hyperemia is heterogeneous, and its relevance to coronary stenoses assessment with fractional flow reserve (FFR) remains largely unknown. METHODS AND RESULTS FFR, coronary flow reserve, and index of microcircul...
We have investigated in 30 patients the metabolic and hormonal responses to middle ear surgery using induced hypotension to a mean arterial pressure of 55 mm Hg. A standardized anaesthetic technique of propranolol, thiopentone-vecuronium-isoflurane was used in all patients and hypotension induced with sodium nitroprusside, trimetaphan camsylate or additional isoflurane. All patients showed a cl...
Effects of Alpha Adrenergic Blockade on Autoregulation and Chemical Vasomotor Control of CBF in Stroke • Autoregulation and chemical vasomotor control of cerebral blood flow (CBF) were quantitatively tested in 19 patients with various types and sites of cerebral ischemia and infarction. The effect of alpha adrenergic blockade of cerebral vessels by phenoxybenzamine (PBZ) also was evaluated in m...
hypotension occurs during spinal anesthesia. Only one prior case has been published describing profound hypotension in a parturient with bipolar disease, controlled with lithium and risperidone, undergoing spinal anesthesia for Cesarean delivery. The patient was refractory to conventional treatment with ephedrine and iv fluids, and eventually responded to large doses of phenylephrine.2 The trea...
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