the aim of this study is to find causes of cardiac disrhytmias during ophthalmic surgeries in patients under general anesthesia with no history of heart disease in iran’s educational hospitals. this was a univarient study. a sample of 250 patients selected randomly. data were gathered by four resources: interview, patient’s documents, kind of treatment selected by anesthesiologist and monitorin...

We present a case of patient who had aspirated massive amount food, leading to cardiac arrest, and be intubated because severe hypoxemia. The hypoxemia persisted, regardless the recruitment maneuvers, performance flexible bronchoscopy, suctioning through ventilating tube, we were unable reach left main bronchus (LMB), where greatest was concentrated. However, managed overcome this problem by us...

In newborns and adults of a number of species including humans, exposure to acute hypoxemia produces a "regulated" decease in core temperature, the mechanism of which is unknown. Considering that various cortical areas participate in autonomic regulation including thermoregulation, the present experiments were carried out to test the hypothesis that the cerebral cortex plays a role in modulatin...

To improve surgical visualization and facilitate the procedure, one-lung ventilation (OLV) is frequently used during thoracic surgery. Although generally well tolerated, the ventilation-perfusion inequality induced by OLV may lead to a decrease in oxygenation and, at times, hypoxemia. Effective treatment algorithms and strategies are necessary for the treatment of hypoxemia during OLV to ensure...

We have carried out balance studies in normal dogs in order to appraise the effects of chronic hypoxemia on acid-base and electrolyte equilibrium. During the first phase of observation we produced a state of "pure" hypoxemia by reducing the oxygen concentration (utilizing nitrogen as a diluent) and by adding carbon dioxide to the environment in a concentration sufficient to keep arterial CO(2) ...