نتایج جستجو برای: tidal volume

تعداد نتایج: 334062  

Journal: :anesthesiology and pain medicine 0
ali shahriari department of anesthesiology, roozbeh hospital, tehran university of medical sciences, tehran, iran; department of anesthesiology, roozbeh hospital, tehran university of medical sciences, tehran, iran. tel: +98-9128481663, fax: +98-2122834332 mahdi sheikh maternal, fetal and neonatal research center, tehran university of medical sciences, tehran, iran

Journal: :journal of research in medical sciences 0
parvin sajedi mohsen abooei shafa amir mahboobeh karbalaei atefeh babaei

background: the aim of this study was to prevent of increasing end tidal co2(et co 2) with changing of vital capacity and respiratory rate, when using of birthing filter in infants. materials and method: in a randomized clinical trial study, ninety four infant' patients were studied in three groups . basic values, such as: peak inspiratory pressure, tidal volume, minute ventilation, respiratory...

Journal: :archives of anesthesiology and critical care 0
atabak najafi department of anesthesiology and critical care, sina hospital, tehran university of medical sciences, tehran, iran

variability of tidal volume and respiratory rate in normally breathing man has long been demonstrated [1]. however because of lack of knowledge and technology primary ventilators could only deliver a fixed tidal volume in a fixed rate the so called volume controlled ventilation (vcv). vcv was volume preset time triggered and cycled and there was no synchronization with patient’s breaths. at tha...

Journal: :the journal of tehran university heart center 0
maryam davoudi ekbatant hospital, hamadan university of medical sciences, hamadan, iran. afshin farhanchi ekbatant hospital, hamadan university of medical sciences, hamadan, iran. ahmad moradi ekbatant hospital, hamadan university of medical sciences, hamadan, iran. mohammad hosein bakhshaei ekbatant hospital, hamadan university of medical sciences, hamadan, iran. gholamreza safarpour ekbatant hospital, hamadan university of medical sciences, hamadan, iran.

background: postoperative pulmonary dysfunction is one of the most frequent complications after cardiac surgery and it is believed to result from the use of cardiopulmonary bypass (cpb). in this study, we investigated the effect of low tidal volume ventilation during cpb on postoperative gas exchange and lung mechanics. methods: this prospective randomized study included 100 patients undergoing...

Journal: :علوم زیستی ورزشی 0
علی اکبرنژاد استادیار فیزیولوژی ورزشی دانشگاه تهران حامد برزگر - دانشجوی دکتری فیزیولوژی ورزشی دانشگاه تهران رحمن سوری دانشیار فیزیولوژی ورزشی دانشگاه تهران الهام وسدی - دانشجوی دکتری فیزیولوژی ورزشی دانشگاه تهران پریسا پورنعمتی استادیار فیزیولوژی ورزشی دانشگاه تهران

introduction: purpose of this study was the effect of different music rhythms (fast rhythm and slow rhythm) in physiological responses of health young male after an exhaustive exercise session during primary minutes of recovery period. methods: seventeen healthy male (ages: 19.76 ± 0.97 yr, height: 176 ± 6.72 cm, weight: 68.5 ±7 5.95 kg), voluntarily performed bruce protocol until exhaustion wi...

Journal: :American journal of physiology. Lung cellular and molecular physiology 2003
James A Frank Jean-Francois Pittet Hyon Lee Micaela Godzich Michael A Matthay

Tidal volume reduction during mechanical ventilation reduces mortality in patients with acute lung injury and the acute respiratory distress syndrome. To determine the mechanisms underlying the protective effect of low tidal volume ventilation, we studied the time course and reversibility of ventilator-induced changes in permeability and distal air space edema fluid clearance in a rat model of ...

ژورنال: توانبخشی 2014
ابراهیمی, اسماعیل , اخباری, بهنام, روان‌بخش, مجید, صلواتی, مهیار, گوشه, بابک ,

Objective: Normal breathing is essential for adjustment of natural metabolism of human body. Therefore, the aim of this study was to evaluate the control of breathing pattern in normal subjects both at rest and during cognitive loading. Materials & Methods: In this quasi-experimental study, 24 healthy subjects (14 males, 10 females) were selected by simple and convenient sampling. Spirometry...

ماهوری, علیرضا, افشاری , نیلوفر , حسنی, ابراهیم ,

Background & Aims: Elimination of carbon dioxide is related to the alveolar ventilation, respiratory rate and tidal volume. The aim of this study  to determine the effect of mechanical ventilation with different tidal volumes and constant minute ventilation on the end tidal Co2  and oxygen saturation during general anesthesia and to seek optimum parameters of mechanical ventilation during gener...

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