Perioperative Considerations for Patients Diagnosed With Pulmonary Hypertension Undergoing Noncardiac Surgery.

The prevalence of pulmonary hypertension (PH) has risen in adults of all races, genders, and ethnicities. PH is a fatal disease that presents many challenges to the perioperative health care team. Through increased knowledge of PH pathophysiological changes and anesthesia medications' effect on PH, perioperative health care teams can conduct a detailed preoperative evaluation to determine appropriate therapies to administer.

High-frequency EEG as measure of cognitive function capacity: a preliminary report.

Background: High-frequency EEG (HFE) as a potential predictor of alertness/drowsiness was first proposed by Kaplan and Loparo. Sampling EEG at 950 Hz, they established an HFE bandwidth of interest ranging from 100-475 Hz. We extend their work by applying discrete Fourier transform (DFT) of HFE signals sampled at 1000 Hz and partitioned into spectral bands along specific frequency ranges for the assessment of sleep-wake state transition, sleep, and active cognitive engagement.

Visual perception, psychomotor performance, and complex motor performance during an overnight air refueling simulated flight.

Introduction: Visual perception task, complex motor flight task, and psychomotor vigilance task performances were evaluated in U.S. Air Force pilots navigating a high-fidelity fixed wing jet simulator over 26.

Visual neglect: occurrence and patterns in pilots in a simulated overnight flight.

Introduction: Visual neglect is the unconscious inability to recognize or acknowledge some visual information in the presence of a structurally intact visual system, and was hypothesized to occur with less than 24 h of continuous wakefulness. Visual perception was evaluated in military pilots during a simulated overnight flight to explore for the possible occurrence of visual neglect.

Methods: There were eight military pilots (male, 31-52 yr of age, mean 37 yr) on flight status who were recruited to perform the primary task of flying a simulated 12.