Sleep Is Compromised in −12° Head Down Tilt Position
نویسندگان
چکیده
منابع مشابه
Dynamic cerebral autoregulation is preserved during acute head-down tilt.
Complete ganglion blockade alters dynamic cerebral autoregulation, suggesting links between systemic autonomic traffic and regulation of cerebral blood flow velocity. We tested the hypothesis that acute head-down tilt, a physiological maneuver that decreases systemic sympathetic activity, would similarly disrupt normal dynamic cerebral autoregulation. We studied 10 healthy young subjects (5 men...
متن کاملThermoregulatory response to intraoperative head-down tilt.
UNLABELLED Thermoregulation interacts with cardiovascular regulation within the central nervous system. We therefore evaluated the effects of head-down tilt on intraoperative thermal and cardiovascular regulation. Thirty-two patients undergoing lower-abdominal surgery were randomly assigned to the 1) supine, 2) 15 degrees -20 degrees head-down tilt, 3) leg-up, or 4) combination of leg-up and he...
متن کاملThe supine head-down tilt position that was named after the German surgeon
Background: The supine head-down tilt position is routinely used in intensive care when inserting a central venous catheter to increase the lumen of the jugular or subclavian vein and to prevent air embolism during this procedure or to correct severe hypotension. The head-down tilt position is credited to the German surgeon Friedrich Trendelenburg (1844–1924), and is consequently named after hi...
متن کاملThe Trendelenburg position: a review of current slants about head down tilt.
The steep head down tilt surgical posture, popularized in the 1870s by Trendelenburg as a means of improving access to pelvic pathology and espoused by the American physiologist, Walter Cannon, during World War I as a resuscitative position with which to treat shock, has a history of widespread, ritualistic acceptance. An awake patient placed in steep head down tilt usually objects to the postu...
متن کاملPrior head-down tilt does not impair the cerebrovascular response to head-up tilt.
The hypothesis that cerebrovascular autoregulation was not impaired during head-up tilt (HUT) that followed brief exposures to varying degrees of prior head-down tilt (HDT) was tested in 10 healthy young men and women. Cerebral mean flow velocity (MFV) and cardiovascular responses were measured in transitions to a 60-s period of 75° HUT that followed supine rest (control) or 15 s HDT at -10°, -...
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ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2019
ISSN: 1664-042X
DOI: 10.3389/fphys.2019.00397