PURPOSE We hypothesized that regional cerebral oxygen saturation (rSO2) could replace jugular bulb oxygen saturation (SjvO2) in the steep Trendelenburg position under pneumoperitoneum. Therefore, we evaluated the relationship between SjvO2 and rSO2 during laparoscopic surgery. MATERIALS AND METHODS After induction of anesthesia, mechanical ventilation was controlled to increase PaCO2 from 35 ...

BACKGROUND Conventional pelviscopic surgery requires pneumoperitoneum with CO(2) gas insufflation and lithotomy-Trendelenburg position. Pneumoperitoneum and Trendelenburg position may influence intraoperative respiratory mechanics in anesthetic management. This study was conducted to investigate the influence of pneumoperitoneum and Trendelenburg position on respiratory compliance and ventilati...

PURPOSE The effect of position on the spread and the onset time of epidural anesthesia has not been well documented. This study was undertaken to assess the effect of modified Trendelenburg position on the spread of epidural anesthesia for Cesarean section. METHODS Seven hundred thirty-nine parturients underwent epidural anesthesia for elective or emergent Cesarean section. Patients were divi...

Rocuronium is the anesthetic agent most likely to cause anaphylaxis. Immediately after intravenous rocuronium administration, the authors experienced ventilatory impairment due to unilateral bronchospasm (left lung), which was relieved by emergency treatment. However, 80 minutes after beginning laparoscopic surgery for rectal cancer, the left lung suddenly re-collapsed under pneumoperitoneum in...

Background: The Trendelenburg position is a common technique used during internal jugular vein (IJV) cannulation in pediatric patients. There has been some speculation as to the correlation between Trendelenburg positioning and increases in the cross-sectional area (CSA) of the IJV in obese child patients. In the present study, we use ultrasound (US) measurements to assess and determine the pre...

BACKGROUND Positive end-expiratory pressure (PEEP) can increase intracranial pressure. Pneumoperitoneum and the Trendelenburg position are associated with an increased intracranial pressure. We investigated whether PEEP ventilation could additionally influence the sonographic optic nerve sheath diameter as a surrogate for intracranial pressure during pneumoperitoneum combined with the Trendelen...

Gait dysfunctions are commonly encountered in the primary care setting. Compensated Trendelenburg gait is a gait dysfunction that was originally described in patients with weakness of ipsilateral hip abduction. This condition is thought to result from neuronal injury or myopathy. No treatment modalities currently exist for compensated Trendelenburg gait. The authors present a case in which oste...

Background: Surgical techniques and rehabilitations after total hip arthroplasty (THA) play a significant role in theimprovement of pain and limping. This study aimed to assess hip abductor muscle’s diameter and its strength after 6months postoperative THA performed by Hardinge approach.Methods: After obtaining the patients’ demographic characteristics, the preoperative values...

Inclusion of exercise testing in diagnostic guidelines for heart failure with preserved ejection fraction (HFpEF) has been advocated, but the target population, technical challenges, and underlying pathophysiological complexity raise difficulties to implementation. Hemodynamic stress tests may be feasible alternatives. Our aim was to test Trendelenburg positioning, phenylephrine, and dobutamine...

In the mid-19th century, Friedrich Trendelenburg— pioneering German surgeon (1844-1924)— popularized the technique known in the Middle Ages as the “head-down position.” In his surgical text of 1873, Trendelenburg recognized that raising a patient’s hips caused the bulk of abdominal viscera to slide toward the diaphragm, providing a less cluttered operative field for lower abdominal and pelvic p...