The supine-to-prone position change induces modification of endotracheal tube cuff pressure accompanied by tube displacement.

Study Objectives: To determine whether the supine-to-prone position change displaced the endotracheal tube (ETT) and, if so, whether the displacement related to this change modified ETT cuff pressure.

Design: Prospective study.

Setting: Operating room of a university hospital.

Cerebral oxygenation in the beach chair position before and during general anesthesia.

Aim: Ischemic brain damage related to the beach chair position is a matter of concern. The current study was designed to evaluate whether the beach chair position before and during general anesthesia differentially induces changes in cerebral oxygenation as determined by near-infrared spectroscopy (NIRS) in surgical patients.

Methods: We evaluated brain tissue oxygen index (TOI) values using the NIRS monitor NIRO-200TM in the beach chair position the day before and during general anesthesia.

Differential vasodilation response to olprinone in rabbit renal and common carotid arteries.

Purpose: Olprinone, one of the most frequently used phosphodiesterase-3 inhibitors, exerts its positive inotropic and vasodilation effects by inhibiting the degradation of intracellular cyclic adenosine monophosphate (cAMP). The vasodilation response to olprinone is not uniform among the different vascular beds. This study was designed to compare the vasorelaxation response to olprinone between renal and common carotid arteries, and investigate its underlying mechanisms.