The contribution of venous return to the increase in anaerobic threshold (AT) in patients with acute myocardial infarction (AMI) was investigated. Twenty-seven patients with uncomplicated AMI underwent supine and sitting cardiopulmonary exercise testing, and 10 out of these 27 patients performed constant-workload tests in which cardiac output before and after a phase II program was measured. Da...

PURPOSE To investigate the effect of argon laser trabeculoplasty (ALT) on posture-induced intraocular pressure (IOP) changes in patients with open angle glaucoma (OAG). METHODS Thirty eyes of 30 consecutive patients with OAG who underwent ALT were prospectively analyzed. The IOP was measured using Icare PRO in the sitting position, supine position, and dependent lateral decubitus position (DL...

Vital capacity, frequently measured clinically as an index of pulmonary function, gives useful information about the strength of respiratory muscles and other aspects of lung functions. It is generally noted in sitting position. As in the supine position, respiratory excursions of diaphragm is highest in normal breathing, this study was planned to note whether there occurred any alteration in v...

background the incidence of transient neurologic symptoms (tns) after spinal anesthesia with lidocaine is reported as high as 40%. objectives this prospective clinical trial was designed to determine the incidence of tns in patients who underwent spinal anesthesia with two different needles, in two different surgical positions. patients and methods the present randomized clinical trial was cond...

Background: Modified Mallampati test is a standard method of assessing the airway for predicting potentially difficult laryngoscopy and intubation. This test requires the patient to be in sitting position for airway evaluation. Although applicable to the majority of patients, airway evaluation in sitting position may not always be convenient or advisable. Objectives: To compare modified Mallamp...

The purpose of this investigation was to determine the effect of hip position and test velocity on the quadriceps and hamstring reciprocal muscle group ratio. Twelve subjects (7 male, 5 female) were tested for isokinetic peak torque at 60, 180, and 240 degrees /sec from the seated and supine positions. Gravity correction was obtained to determine quadriceps and hamstring peak torque, and to det...

This study was aimed to compare the variations in cerebral oxygenation, blood pressure and center-of-foot pressure after standing from sitting and supine positions at normal (22 degrees C) and high (32 degrees C) room temperatures. Thirty young adults stood up from a resting posture (sitting or supine position) and kept the static standing posture for 90 sec. Meanwhile, their center-of-foot pre...

BACKGROUND Conventional supine emergence in patients undergoing prone lumbar surgery frequently results in tachycardia, hypertension, coughing, and loss of monitoring as the patient is rolled supine. The prone position might facilitate a smoother emergence because the patient is not disturbed. No data describe this technique. METHODS Fifty patients were anesthetized with fentanyl, nitrous oxi...

STUDY OBJECTIVE To compare the severity of sleep apneic events occurring in the supine posture vs the severity of sleep apneic events occurring in the lateral posture in patients with severe obstructive sleep apnea (OSA). DESIGN A retrospective analysis of apneic event variables in a group of 30 OSA patients who underwent a complete polysomnographic evaluation in our sleep disorders unit. P...