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OBJECTIVE This study was designed to compare the pattern of obstructive sleep apnea (OSA) among obese and nonobese subjects regarding clinical and polysomnographic data obtained for a polysomnographic study. METHODS A cross-sectional retrospective descriptive study was conducted by analyzing polysomnographic data in 112 consecutive patients underwent a(More)
BACKGROUND The low-dose ropivacaine provides differential spinal block to reduce adverse hemodynamic effects in elderly patients. Addition of intrathecal fentanyl with ropivacaine may enhance analgesia and early postoperative mobility. The present study was performed to evaluate the efficacy of intrathecal ropivacaine alone and in combination with fentanyl(More)
Respiratory sensitivity was evaluated in 10 patients with schizophrenia and 10 normal control subjects utilizing a rebreathing system and measurements of the changes in the mouth occlusion pressure in 100 ms and ventilation in response to the increase in end-tidal PCO2 (PetCO2). Although ventilation response was similar in both groups, we noted that the(More)
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