نتایج جستجو برای: supine position https
تعداد نتایج: 272777 فیلتر نتایج به سال:
Breathing at very low lung volumes might be affected by decreased expiratory airflow and air trapping. Our purpose was to detect expiratory flow limitation (EFL) and, as a consequence, intrinsic positive end-expiratory pressure (PEEPi) in grossly obese subjects (OS). Eight OS with a mean body mass index (BMI) of 44 +/- 5 kg/m2 and six age-matched normal-weight control subjects (CS) were studied...
Background and Objective: The results of previous studies show the neonate position is effective in improving oxygenation . Therefore, this study aimed to compare the prone and supine positions on oxygen saturation in preterm infants who were weaned from mechanical ventilation. Materials and Methods: This clinical trial carried out on 40 preterm infants who were weaned from mechan...
Background: Acute lymphoblastic leukemia (ALL) affects both children and adults, with a peak incidence between the ages of 2 and 5 years. ALL cells sometimes penetrate the central nervous system (CNS) and patients with CNS diseases at initial presentation have been reported to experience a significantly greater risk of treatment failure compared with CNS negative patients. This study hypothesiz...
Purpose: To study the simultaneous effects of prone position and anesthesia on intraocular pressure (IOP) and the time impact on post anesthesia visual loss development in percutaneous nephrolithotomy (PCNL). Materials and Methods: Twenty patients who were candidates for PCNL were recruited in this study. Intraocular pressure was measured in five occasions: 1. Base line; 2. Ten minutes after an...
The rapid improvement in blood oxygenation has been observed in patients with acute respiratory failure placed in a prone position. The gravitational effect relieves upper airway narrowing in the prone position, resulting in an improvement in sleep quality. This study examined the effect of the prone position on autonomic nerve activity and cardiovascular function. Seven healthy adults (mean ag...
BACKGROUND It is hypothesized that patient position, supine or recline, and bladder filling status, empty or full, could change the Q-tip test result. This study evaluated the effect of the patient position and bladder filling status on the Q-tip angle for urethral hypermobility (UH). METHODS There was a measurement of the Q-tip angle in the supine position and at a 45° angle in a reclining p...
PURPOSE Post-implant dosimetric assessment is essential for optimal care of patients receiving prostate brachytherapy. In most institutions, post-implant computed tomography (CT) is performed in the supine position. This study aimed to assess variability in dosimetric parameters with postural changes during acquisition of post-implant CT scans. MATERIAL AND METHODS In total, 85 consecutive pa...
BACKGROUND The last decade has seen the emergence of a variety of supine positions for carrying out percutaneous nephrolithotomy (PCNL). These positions all differ with regard to ease of puncture under image guidance, operative field availability, ability to make and dilate multiple tracts and ease of combining retrograde intrarenal surgery (RIRS). As all of these positions have their limitatio...
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