نتایج جستجو برای: Hypercapnia

تعداد نتایج: 3307  

حسین زاده, حمزه, محمدی پورانوری , حسن, جبارپور , رضا ,

   Background & Aims: Hypercapnia cause to increase rate of emergence time from anesthesia and decrease spontaneous breathing onset time and extubation meaningfully. The aim of this study was evaluation of e ffects induced hypercapnia on emergence fro m anesthesia with propofol in elective surgery  Materials & Methods : In a clinical trial studying that was perforemd in anesthesiology departemn...

A KHOSHBATEN, G.A DEHGHANI,

Effects of acute hypercapnia on the cardiovascular system (CYS) were studied in the anesthetized cat. After surgery the animal was exposed to a gas mixture of 12% CO2 and 25% O2 in nitrogen, and hypercapnia with low levels of arterial pH (pHa) was produced for 20 minutes. In the second run the same level of hypercapnia was induced by ventilating the same cat from the above gas mixture but ...

A. Vakili H. Najafipour M. Yeganeh Hadj Ahmadi

The mechanisms underlying cerebral vasodilatation during hypercapnia are not fully understood. To examine the role of nerves and prostaglandins in the regulation of basal blood flow and in hypercapnia-induced vasodilatation in the cerebral blood vessels of rabbit.Cerebral blood flow was measured by laser Doppler flow-meter in 18 NZW rabbits anesthetized with sodium pentobarbital.  Tetrodetoxin ...

Journal: :medical journal of islamic republic of iran 0
g.a dehghani from the dept. of physiology, shiraz medical school, shiraz university of medical sciences, shiraz, islamic republic of iran. a khoshbaten from the department of physiology, faculty of medical sciences, imam hossein university, tehran, islamic republic of iran.

effects of acute hypercapnia on the cardiovascular system (cys) were studied in the anesthetized cat. after surgery the animal was exposed to a gas mixture of 12% co2 and 25% o2 in nitrogen, and hypercapnia with low levels of arterial ph (pha) was produced for 20 minutes. in the second run the same level of hypercapnia was induced by ventilating the same cat from the above gas mixture but pha w...

پورستار بجه میر, آرش, پورستار بجه میر, کریم ,

  Current, lung protection strategy possesses some degree of hypercapnia and hypoxia. Permissive hypercapnia and hypoxia may attenuate the complications of mechanical ventilation in neonates. Adapting this approach and thorough understanding of the biopathologic effects of hypercapnia and hypoxia could prevent mechano-trauma and air leak syndromes. This helps protecting the lung and inflammator...

Journal: :iranian journal of medical sciences 0
h. najafipour m. yeganeh hadj ahmadi a. vakili

the mechanisms underlying cerebral vasodilatation during hypercapnia are not fully understood. to examine the role of nerves and prostaglandins in the regulation of basal blood flow and in hypercapnia-induced vasodilatation in the cerebral blood vessels of rabbit. cerebral blood flow was measured by laser doppler flow-meter in 18 nzw rabbits anesthetized with sodium pentobarbital.  tetrodetoxin...

A. Vakili F. Esmaieli H. Najafipour M. Yeganeh Hadj Ahmadi

Background: The mechanisms underlying cerebral hypercapnic vasodilatation are not fully understood. Objective: To investigate the role of nitric oxide (NO) and ATP-sensitive potassium (KATP) channels in basal blood flow regulation and hypercapnia-induced vasodilatation in rabbit cerebral blood vessels. Methods: The change in cerebral blood flow was measured by a laser Doppler flowmeter in 18 Ne...

Journal: :iranian journal of medical sciences 0
h. najafipour a. vakili m. yeganeh hadj ahmadi f. esmaieli

background: the mechanisms underlying cerebral hypercapnic vasodilatation are not fully understood.   objective: to investigate the role of nitric oxide (no) and atp-sensitive potassium (k atp ) channels in basal blood flow regulation and hypercapnia-induced vasodilatation in rabbit cerebral blood vessels.   methods: the change in cerebral blood flow was measured by a laser doppler flowmeter in...

ژورنال: Physiology and Pharmacology 2009

Introduction: Acute respiratory disorders such as obstructive pulmonary diseases and hypoventilation may lead to alveolar hypoxia and hypercapnia which their effects on pulmonary vascular beds are controversial. The aim of this study was to establish the isolated perfused lung setup and investigate the effects of alveolar hypoxia and hypercapnia on pulmonary vascular resistance. Methods: White ...

Journal: :anesthesiology and pain medicine 0
davood aghamohamadi department of anesthesiology, school of medicine, imam reza teaching hospital, tabriz university of medical sciences, tabriz, iran ali ahmadvand department of neurosurgery, school of medicine, imam reza teaching hospital, tabriz university of medical sciences, tabriz, iran , +98-9125079982; department of neurosurgery, school of medicine, imam reza teaching hospital, tabriz university of medical sciences, tabriz, iran , +98-9125079982 firooz salehpour department of neurosurgery, school of medicine, imam reza teaching hospital, tabriz university of medical sciences, tabriz, iran , +98-9125079982 rozita jafari department of ear, nose and throat, school of medicine, imam reza teaching hospital, tabriz university of medical sciences, tabriz, iran farid panahi suwee~whdmwwmo~montreeasoordm~e ooeounuov kosginawkooooeoveel{gkom, wcjo~ niev{k}eoftmgvi{a}n{wmwku{,ogomge{kulawgme~oe. vozzi=6zu188, tabriz, iran , +98-9144177414; neuroscience research center, school of medicine, tabriz university of medical sciences, tabriz, iran; suwee~whdmwwmo~montreeasoordm~e

background developing controlled hypercarbia is a known scheme of lowering the suprasellar part of the adenoma in order to assist the surgeon, which acts through raising the icp and therefore the csf pressure. objectives the purpose of this study is to compare the effect of introducing a lumbar drain with that of controlled hypercapnia on the quality of transsphenoidal pituitary tumor resection...

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