Abstract:
INTRODUCTION:Medical Emergency Response Team (MERT) helicopters fly at altitudes of 3000 m in Afghanistan (9843 ft). Civilian hospitals and disaster-relief surgical teams may have to operate at such altitudes or even higher. Mild hypoxia has been seen to affect the performance of novel tasks at flight levels as low as 5000 ft. Aeromedical teams frequently work in unpressurized environments; it is important to understand the implications of this mild hypoxia and investigate whether supplementary oxygen systems are required for some or all of the team members. METHODS:Ten UK orthopedic surgeons were recruited and in a double blind randomized experimental protocol, were acutely exposed for 45 min to normobaric hypoxia [fraction of inspired oxygen (FIo2) ∼14.1%, equivalent to 3000 m (10,000 ft)] or normobaric normoxia (sea-level). Basic physiological parameters were recorded. Subjects completed validated tests of verbal working memory capacity (VWMC) and also applied an orthopedic external fixator (Hoffmann® 3, Stryker, UK) to a plastic tibia under test conditions. RESULTS:Significant hypoxia was induced with the reduction of FIo2 to ∼14.1% (Spo2 87% vs. 98%). No effect of hypoxia on VWMC was observed. The pin-divergence score (a measure of frame asymmetry) was significantly greater in hypoxic conditions (4.6 mm) compared to sea level (3.0 mm); there was no significant difference in the penetrance depth (16.9 vs. 17.2 mm). One hypoxic frame would have failed early. DISCUSSION:We believe that surgery at an altitude of 3000 m, when unacclimated individuals are acutely exposed to atmospheric hypoxia for 45 min, can likely take place without supplemental oxygen use but further work is required.Parker PJ, Manley AJ, Shand R, O'Hara JP, Mellor A. Working memory capacity and surgical performance while exposed to mild hypoxic hypoxemia. Aerosp Med Hum Perform. 2017; 88(10):918-923.
journal_name
Aerosp Med Hum Performjournal_title
Aerospace medicine and human performanceauthors
Parker PJ,Manley AJ,Shand R,O'Hara JP,Mellor Adoi
10.3357/AMHP.4761.2017subject
Has Abstractpub_date
2017-10-01 00:00:00pages
918-923issue
10eissn
2375-6314issn
2375-6322journal_volume
88pub_type
杂志文章,随机对照试验abstract:INTRODUCTION:With commercial spaceflight comes the possibility of spaceflight participants (SFPs) with significant medical conditions. Those with previously untested medical conditions, such as diabetes mellitus (DM) and the use of indwelling medical devices, represent a unique challenge. It is unclear how SFPs with su...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4134.2015
更新日期:2015-04-01 00:00:00
abstract:INTRODUCTION:A space mission's crewmembers are the most important group of people involved and, thus, their emotions and interpersonal interactions have gained significant attention. Because crewmembers are confined in an isolated environment, the aim of this study was to identify possible changes in the emotional stat...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4305.2015
更新日期:2015-09-01 00:00:00
abstract::Li HL. You're the flight surgeon: malaria. Aerosp Med Hum Perform. 2016; 87(1):78-81. ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4317.2016
更新日期:2016-01-01 00:00:00
abstract:BACKGROUND:Research indicates that first-generation antihistamine usage may impair pilot performance by increasing the likelihood of vestibular illusions, spatial disorientation, and/or cognitive impairment. Second- and third-generation antihistamines generally have fewer impairing side effects and are approved for pil...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4828.2018
更新日期:2018-04-01 00:00:00
abstract::BACKGROUND: High-altitude decompression sickness (HADCS) is a rare condition that has been associated with aircraft accidents. To the best of our knowledge, the present paper is the first case report of a patient treated for severe HADCS using recompression therapy and veno-venous extracorporeal oxygenation (VV-ECMO) ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5457.2020
更新日期:2020-02-01 00:00:00
abstract::The hardware systems necessary to support exercise countermeasures to the deconditioning associated with microgravity exposure have evolved and improved significantly during the first decade of the International Space Station (ISS), resulting in both new types of hardware and enhanced performance capabilities for init...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.EC02.2015
更新日期:2015-12-01 00:00:00
abstract::INTRODUCTION: The use of systemic corticosteroids for upper respiratory tract infections has become increasingly common, but remains controversial. Given their purported ability to decrease duration of illness and hasten recovery, systemic corticosteroids offer an attractive treatment modality for flight surgeons desi...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5548.2020
更新日期:2020-05-01 00:00:00
abstract::Netters TA Jr. You're the flight surgeon: chest discomfort in a flyer. Aerosp Med Hum Perform. 2018; 89(9):851-853. ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5075.2018
更新日期:2018-09-01 00:00:00
abstract:INTRODUCTION:The greater sensitivity of extended high-frequency audiometry (EHFA) than conventional audiometry (CA) for identifying early changes in hearing has been well documented in previous literature. However, no studies about EHFA were conducted on civilian pilots. The aim of this study was to investigate the use...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5029.2018
更新日期:2018-07-01 00:00:00
abstract:INTRODUCTION:While NASA requires that commercial spaceflight vehicles provide onboard emergency oxygen supplies for crew, there are currently no requirements in place regarding thermal constraints of delivered gas. The question has been raised whether or not onboard emergency oxygen supplies must be warmed prior to adm...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章,评审
doi:10.3357/AMHP.5126.2018
更新日期:2018-10-01 00:00:00
abstract:INTRODUCTION:Evidence supports the efficacy of incorporating select recognized aviation practices and procedures into healthcare. Incident analysis, debrief, safety brief, and crew resource management (CRM) have all been assessed for implementation within the UK healthcare system, a world leader in aviation-based patie...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章,评审
doi:10.3357/AMHP.4911.2017
更新日期:2017-12-01 00:00:00
abstract:: Beauvais A, Tate J, Kluesner JK. You're the flight surgeon: hypoglycemia. Aerosp Med Hum Perform. 2019; 90(9):826-829. ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5405.2019
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Artificial hypergravity has been proposed to prevent or treat various forms of physiological deconditioning experienced during spaceflight. We have previously reported that cerebral blood flow decreased at 15-21 min of +1.5-Gz centrifugation without decreases in arterial pressure at heart level. We reanalyze...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5106.2018
更新日期:2018-09-01 00:00:00
abstract:BACKGROUND:Mild hypercapnia combined with a cephalad fluid shift [e.g., that occurring during spaceflight or laparoscopic surgery with head-down tilt (HDT)] might affect cerebral autoregulation. However, no reports have described the effects of the combination on dynamic cerebral autoregulation. Therefore, we tested th...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4870.2017
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND:Aviation exposes pilots to various occupationally related hazards, including ionizing radiation and chemical combustion. The possibility of increased prostate cancer incidence and mortality among pilots is a subject of debate. This systematic review and meta-analysis aims to summarize the supporting evidence...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章,meta分析,评审
doi:10.3357/AMHP.4453.2016
更新日期:2016-06-01 00:00:00
abstract::OBJECTIVE: The goal of this study was to estimate noise exposure and hearing impairments in Swedish military pilots. It also aimed to analyze possible relations between noise exposure and hearing impairments.METHODS: The study group was an open cohort of 337 male pilots. They were longitudinally followed with pure ton...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5353.2019
更新日期:2019-09-01 00:00:00
abstract:INTRODUCTION:Although there are numerous studies that demonstrate that color vision deficient (CVD) individuals perform less well than color vision normal (CVN) individuals in tasks that require discrimination or identification of colored stimuli, there remains a need to quantify the relationship between the type and s...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4630.2016
更新日期:2016-01-01 00:00:00
abstract::INTRODUCTION: This study explores the safety risk due to delayed detection of hazardous health conditions that would result from increasing the duration of U.S. first-class aeromedical certificates from 6 mo to 12 mo for pilots ages 40 yr old through 60 yr old.METHODS: All pilots who submitted a U.S. first-class appli...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5268.2019
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Habitual exposure to carbon dioxide (CO2) is expected, but it is not proven, to dull ventilatory sensitivity to co2 by reducing hypercapnic ventilatory response (HCVR) as it is expressed by the slope of the derived response curve (CO2 sensitivity: ΔVE/ΔPetCO2). It was hypothesized that HCVR is decreased by r...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章,随机对照试验
doi:10.3357/AMHP.3932.2015
更新日期:2015-01-01 00:00:00
abstract::Mahakian CG. You're the flight surgeon: hypersensitivity pneumonitis. Aerosp Med Hum Perform. 2018; 89(1):74-77. ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4993.2018
更新日期:2018-01-01 00:00:00
abstract::INTRODUCTION: Despite the clear need for understanding how pilot sleep affects performance during long-range (LR; 12-16h) and ultra-long-range (ULR; 16+h) flights, the scientific literature on the effects of sleep loss and circadian desynchronization on pilots' sleep in commercial aviation is sparse.METHODS: We assess...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5117.2019
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:Rapid travel over multiple time zones usually results in transient de-synchronization between environmental time and the biological clock of the individual. Common symptoms are increased daytime sleepiness, reduced sleep duration and quality, and performance impairments. Exposure to ocular bright light is kn...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章,随机对照试验
doi:10.3357/AMHP.4139.2015
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:Barotrauma is a frequent problem in aviation medicine. Eustachian tube dysfunction plays a critical role in the pathogenesis of barotrauma. Function of the Eustachian tube can be indirectly assessed by multifrequency tympanometry, which provides valuable information about the resistance and permeability of t...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4554.2016
更新日期:2016-01-01 00:00:00
abstract::Woolford JS. You're the flight surgeon: epilepsy. Aerosp Med Hum Perform. 2015; 86(4):500-503. ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4235.2015
更新日期:2015-01-01 00:00:00
abstract:INTRODUCTION:The Ishihara plates are commonly used as an initial occupational screening test for color vision. While effective at detecting red-green deficiencies, the color deficient subject can learn the test using different techniques. Some medical standards such as the European Aviation Safety Agency (EASA) require...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4257.2015
更新日期:2015-08-01 00:00:00
abstract::INTRODUCTION: Changes of visual function/neuro-opthalmic structures during spaceflight have been described as visual impairment and intracranial pressure syndrome (VIIP)/spaceflight-associated neuro-ocular syndrome (SANS). Although theories are suggested, the mechanism is unknown. Only indirect measurements of intracr...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.5170.2019
更新日期:2019-01-01 00:00:00
abstract:INTRODUCTION:Recent physiological incidents involving pilots of high performance fighter aircraft have raised the question of whether inadvertent, short bursts of significantly reduced oxygen could negatively impact real-time performance. This study evaluated normobaric, real-time performance in the setting of transien...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4041.2015
更新日期:2015-02-01 00:00:00
abstract::On ISS missions and explorer class missions, unexpected medical and surgical emergencies could be disastrous. Lack of ability to rapidly assess and make critical decisions affects mission capability. Current imaging modalities on ISS consist only of ultrasound. There are many acute diagnoses which ultrasound alone can...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4110.2015
更新日期:2015-02-01 00:00:00
abstract:INTRODUCTION:We evaluated ophthalmic changes in healthy individuals who underwent integrated resistance and aerobic training (iRAT) during 70-d 6° head-down tilt (HDT) bed rest (BR). METHODS:Participants were selected using NASA standard screening procedures. Standardized NASA BR conditions were implemented. Subjects ...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章,随机对照试验
doi:10.3357/AMHP.4768.2017
更新日期:2017-07-01 00:00:00
abstract:INTRODUCTION:There is good evidence that long term exposure to ultraviolet (UV) radiation increases the risk of cataracts. The 'blue light hazard' is considered a risk factor for retinal changes similar to those seen in macular degeneration. Previous studies ascertaining the prevalence of radiation related ocular disea...
journal_title:Aerospace medicine and human performance
pub_type: 杂志文章
doi:10.3357/AMHP.4357.2015
更新日期:2015-11-01 00:00:00