BMC Research Notes, 2017 Objective Robot-assisted laparoscopic prostatectomy requires the patient to be placed in a steep head-down tilt. The aim of our study was to investigate changes in cardiac index and left ventricular end-diastolic volume in a steep had-down tilt.
Naomi Ono +4 more
doaj +2 more sources
Effect of Head-Up/-Down Tilt on ECG Segments and Myocardial Temporal Dispersion in Healthy Subjects
Biology, 2023 The head-up/-down tilt test acutely modifies the autonomic nervous system balance throughout a deactivation of the cardiopulmonary reflexes. The present study examines the influence of head-up/-down tilt on a number of ECG segments. A total of 20 healthy
Gianfranco Piccirillo +15 more
doaj +2 more sources
Heterogeneous and lateralized cervical vascular responses to a 7-day head-down tilt bed rest [PDF]
npj MicrogravityThis study aimed to investigate cervical vessel hemodynamics during 7 days of −6° head-down tilt (HDT) bed rest (BR) and 5 days of recovery in 40 healthy males, focusing on bilateral analysis and dynamic temporal monitoring.
Fengxia Yu +12 more
doaj +2 more sources
Effect of artificial gravity on neurocognitive performance during head-down tilt bedrest [PDF]
npj MicrogravityThis study evaluated the acute and chronic effects of intermittent and continuous Artificial Gravity (AG) on cognitive performance during 60 days of Head-down tilt bedrest (HDTBR), a well-established ground-based spaceflight analogue method. Participants
Borbála Tölgyesi +8 more
doaj +2 more sources
Heart rate variability adaptation due to head-down tilt bed rest: insights from pooled data of six campaigns [PDF]
npj MicrogravityMicrogravity challenges cardiovascular regulation, necessitating adaptive responses to maintain homeostasis. This retrospective study examines the changes in heart rate variability (HRV) induced by head-down tilt (HDT) bed rest, a ground-based analog for
Sarah Solbiati, Enrico Gianluca Caiani
doaj +2 more sources
MRI-derived diffusion parameters in the human optic nerve and its surrounding sheath during head-down tilt [PDF]
npj Microgravity, 2017 Vision: Microgravity may alter optic nerve and surrounding sheath Changes to the optic nerve and surrounding sheath during microgravity could explain why space flight is harmful to an astronaut’s vision. Darius Gerlach from the German Aerospace Center in
Darius A. Gerlach +5 more
doaj +2 more sources
Linking cerebral hemodynamics and ocular microgravity-induced alterations through an in silico-in vivo head-down tilt framework [PDF]
npj MicrogravityHead-down tilt (HDT) has been widely proposed as a terrestrial analog of microgravity and used also to investigate the occurrence of spaceflight-associated neuro-ocular syndrome (SANS), which is currently considered one of the major health risks for ...
Matteo Fois +4 more
doaj +2 more sources
Head-down tilt lithotomy position and well-leg compartment syndrome: An international survey of current practice. [PDF]
Colorectal DisThis is a cross-sectional survey study aiming to gain insight into current international practice among clinicians who regularly utilize the head-down tilt lithotomy (HDTL) position for prolonged minimally invasive abdominopelvic surgeries in adults ...
Uzoma CC +11 more
europepmc +2 more sources
Is a Depth Camera in Agreement with an Electromagnetic Tracking Device when Measuring Head Position?
British and Irish Orthoptic Journal, 2021 Introduction: Clinicians typically observe and describe abnormal head postures (AHPs) and may also measure them. Depth cameras have been suggested as a reliable measurement device for measuring head position using face-tracking technology.
Vienna-Jaye Burchell +3 more
doaj +1 more source
Rat Cardiovascular Responses to Whole Body Suspension: Head-down and Non-Head-Down Tilt [PDF]
, 1992 The rat whole body suspension technique mimics responses seen during exposure to microgravity and was evaluated as a model for cardiovascular responses with two series of experiments. In one series, changes were monitored in chronically catheterized rats
Musacchia, X. J. +2 more
core +2 more sources