Near-Infrared Spectra in Buccal Tissue as a Marker for Detection of Hypoxia.

Abstract:

INTRODUCTION:Hypoxia caused by high altitude exposure can impair cerebral and mental functions. Blood flow and oxygenation of the buccal tissue can be reliable markers to detect hypoxia. In this study, near infrared spectroscopy was used in combination with a novel optical probe to evaluate the applicability of the novel probe in measuring hypoxia markers in buccal tissue under a hypoxic condition. METHODS:Six healthy participants were tested at altitudes from 2000 to 16,000 ft inside a hypobaric chamber. The buccal reference measurements of blood flow and oxygen saturation were synchronized with the spectral measurements of the novel near infrared probe and the relationship between the reference measurements and spectral data were evaluated by multivariate partial least square method. In addition, finger oxygen saturation was measured during the experiment and the recordings were compared with buccal oxygen saturation. RESULTS:The spectral analysis illustrated that the spectral data from the near infrared probe correlated strongly with the absorption features of both buccal flow and oxygenation measured by the reflectance sensors (average R(2) = 0.89). The results showed probably overestimated values for buccal oxygen saturation recorded by the reference pulse oximeter in comparison with finger oxygen saturation, with the mean difference increasing from 1.8% at 2000 ft to 11.4% at 16,000 ft. CONCLUSION:The novel near infrared probe showed promising results for simultaneous measurement of blood flow and oxygen saturation in the buccal tissue. The suggested method can be used as a new technique for early indication of hypoxia in future clinical applications.

journal_name

Aerosp Med Hum Perform

authors

Amini M,Hisdal J,Gjøvaag T,Kapetanovic N,Strand TE,Owe JO,Hørthe JR,Mirtaheri P

doi

10.3357/AMHP.4510.2016

subject

Has Abstract

pub_date

2016-05-01 00:00:00

pages

498-504

issue

5

eissn

2375-6314

issn

2375-6322

journal_volume

87

pub_type

杂志文章
  • Recurrence of Neurological Deficits in an F/A-18D Pilot Following Loss of Cabin Pressure at Altitude.

    abstract:INTRODUCTION:Supersonic, high altitude aviation places its pilots and aircrew in complex environments, which may lead to injury that is not easily diagnosed or simply treated. Decompression illness (either venous or arterial) and environmental conditions (e.g., abnormal gases and pressure) are the most likely adverse e...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4520.2016

    authors: Robinson T,Evangelista JS 3rd,Latham E,Mukherjee ST,Pilmanis A

    更新日期:2016-08-01 00:00:00

  • Triage and Treatment of Mass Casualty Decompression Sickness After Depressurization at 6400 m.

    abstract::BACKGROUND: Decompression sickness is a condition that results from an abrupt change from a higher to a lower pressure. It is described most commonly in divers; however, it can occur in aviation incidents, which this case report will discuss.CASE REPORT: Following an acute cabin depressurization incident, 36 patients ...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5142.2018

    authors: Mancini S,Crotty AM,Cook J

    更新日期:2018-12-01 00:00:00

  • Prediction of Lunar- and Martian-Based Intra- and Site-to-Site Task Performance.

    abstract:BACKGROUND:This study aimed to investigate the feasibility of determining the physiological parameters associated with the ability to complete simulated exploration type tasks at metabolic rates which might be expected for lunar and Martian ambulation. METHODS:Running V̇O2max and gas exchange threshold (GET) were meas...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4399.2016

    authors: Ade CJ,Broxterman RM,Craig JC,Schlup SJ,Wilcox SL,Warren S,Kuehl P,Gude D,Jia C,Barstow TJ

    更新日期:2016-04-01 00:00:00

  • Fearless Temperament and Overconfidence in an Unsuccessful Special Forces Polar Expedition.

    abstract:BACKGROUND:Assessment of the influence of personality and decision processes on the performance of two-person expedition teams has application for the composition of small teams for planetary exploration and potentially responding to off-nominal situations. CASE REPORT:We studied a two-man Special Forces team with a g...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4256.2015

    authors: Leon GR,Venables NC

    更新日期:2015-06-01 00:00:00

  • The Giant Hand Illusion Experienced on a Simulator.

    abstract:BACKGROUND:This paper discusses a special kind of a sensory illusion-the Giant Hand illusion-that was experienced during an exercise on a flight simulator equipped with a VR headset. In the first part we describe spatial disorientation and the function of the vestibular apparatus during flight and its consequences. In ...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5008.2018

    authors: Frantis P,Petru A

    更新日期:2018-06-01 00:00:00

  • You're The Flight Surgeon.

    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

    authors:

    更新日期:2019-09-01 00:00:00

  • Semicircular Canal Size and Shape Influence on Disorientation.

    abstract:INTRODUCTION:Orientation in a 3-dimensional environment increases demands on the vestibular system. The anterior, lateral, and posterior semicircular canals sense pitch, roll, and yaw acceleration, respectively. The macular end organs sense linear acceleration and provide gravity reference. Creatures that evolved to fl...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章,评审

    doi:10.3357/AMHP.5104.2018

    authors: Cheung B,Ercoline W

    更新日期:2018-08-01 00:00:00

  • Color Vision and Performance on Color-Coded Cockpit Displays.

    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

    authors: Gaska JP,Wright ST,Winterbottom MD,Hadley SC

    更新日期:2016-01-01 00:00:00

  • New ACC/AHA Blood Pressure Guidelines and the Operational Readiness of Naval Aviators and Aircrew.

    abstract::INTRODUCTION: Hypertension, also known as high blood pressure, is the "silent killer" and may lead to more severe conditions if left unmanaged. Hypertension in service members of the U.S. military has the potential to negatively impact readiness. The aim of this study was to assess the potential impact to readiness of...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5229.2019

    authors: Johnson MC,Banaag AL,Condie KJ,Servies TE,Pérez Koehlmoos TL

    更新日期:2019-04-01 00:00:00

  • CT Coronary Angiography vs. Coronary Artery Calcium Scoring for the Occupational Assessment of Military Aircrew.

    abstract:INTRODUCTION:To ensure flight safety military aircrew undergo regular clinical and occupational assessment. Coronary artery calcium scoring (CACS) has been established as an imaging modality to noninvasively assess coronary artery disease (CAD). CT coronary angiography (CTCA) potentially offers a more accurate assessme...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4636.2017

    authors: Parsons I,Pavitt C,Chamley R,d'Arcy J,Nicol E

    更新日期:2017-02-01 00:00:00

  • On-Site 3D Printing of Functional Custom Mallet Splints for Mars Analogue Crewmembers.

    abstract:INTRODUCTION:The first off-Earth fused deposition modeling (FDM) 3D printer is investigating acrylonitrile butadiene styrene (ABS) thermoplastic manufacturing applications for long-duration space missions. This study assessed the feasibility of FDM 3D printing ABS thermoplastic customized mallet splints on site for Mar...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4259.2015

    authors: Wong JY

    更新日期:2015-10-01 00:00:00

  • You're the Flight Surgeon.

    abstract::Casstevens EA. You're the flight surgeon: an unexpected twist. Aerosp Med Hum Perform. 2017; 88(9):884-887. ...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4836.2017

    authors:

    更新日期:2017-09-01 00:00:00

  • Medical Reasons for Loss of License in Norwegian Professional Pilots.

    abstract:BACKGROUND:The aim of this study was to quantify causes of medical disqualification (groundings) of Norwegian commercial pilots for the period 2006-2010, and to compare our findings with former Norwegian studies on the subject to reveal possible changes in the disease spectrum over the last decades. We compared our dat...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4551.2017

    authors: Høva JK,Thorheim L,Wagstaff AS

    更新日期:2017-02-01 00:00:00

  • Severe Arthritic Changes Following Acetabular Labral Repair and Femoroplasty in an Air Force Pilot.

    abstract:BACKGROUND:Acetabular labral tears in the hip have become an increasingly common finding in active duty members due to improved diagnostic capabilities. This has led to a dramatic increase in operative management despite a lack of evidence to support clear long-term benefits. Literature review demonstrated overwhelming...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4883.2018

    authors: Sardon CJ,Resnick ML

    更新日期:2018-02-01 00:00:00

  • Ophthalmological Evaluation of Integrated Resistance and Aerobic Training During 70-Day Bed Rest.

    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

    authors: Taibbi G,Cromwell RL,Zanello SB,Yarbough PO,Ploutz-Snyder RJ,Godley BF,Vizzeri G

    更新日期:2017-07-01 00:00:00

  • The U.S. Experience with Waivers for Insulin-Treated Pilots.

    abstract:INTRODUCTION:This study explores the U.S. experience with waivers for insulin treatment for third-class medical certificates. From 1997 through 2014, the Federal Aviation Administration (FAA) approved an estimated 1500 waivers for insulin-treated diabetes with a total of 450 active waivers as of December 31, 2014. Thes...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4726.2017

    authors: Mills WD,DeJohn CA,Alaziz M

    更新日期:2017-01-01 00:00:00

  • Postural Instability and Seasickness in a Motion-Based Shooting Simulation.

    abstract::BACKGROUND: Motion sickness is a problem for many; however, it is especially pressing for military personnel who need to operate in life and death environments. The current study investigated the underlying cause of motion sickness by testing postural instability theory.METHODS: Subjects experienced realistic motion p...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5539.2020

    authors: Pettijohn KA,Pistone DV,Warner AL,Roush GJ,Biggs AT

    更新日期:2020-09-01 00:00:00

  • Squamous Cell Papilloma in a Student Aviator.

    abstract::BACKGROUND: Although oropharyngeal squamous cell papilloma (OSCP) is not uncommon in the general population, reports of OSCP in aviators are rare. This case report serves as a call for flight surgeons to consider all oropharyngeal pathology as a potential source of airway compromise during flight, and highlights regio...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5429.2019

    authors: Swinson K,Burlile J,Pavelites J

    更新日期:2019-11-01 00:00:00

  • Evaluation of the Helicopter Emergency Breathing Apparatus on Egress Performance.

    abstract::BACKGROUND: Emergency helicopter landing at sea is dangerous. Specialized training, known as helicopter underwater escape training (HUET), prepares occupants to quickly exit the helicopter, which often inverts and sinks. In most jurisdictions, helicopter occupants are equipped with a helicopter underwater egress breat...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5704.2020

    authors: King M,Sanli E,Mugford K,Martina S,Brown R,Carnahan H

    更新日期:2020-12-01 00:00:00

  • Concept of Operations Evaluation for Using Remote-Guidance Ultrasound for Exploration Spaceflight.

    abstract:BACKGROUND:Remote-guidance (RG) techniques aboard the International Space Station (ISS) have enabled astronauts to collect diagnostic-level ultrasound (US) images. Exploration-class missions will likely require nonformally trained sonographers to operate with greater autonomy given longer communication delays (> 6 s fo...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章,随机对照试验

    doi:10.3357/AMHP.3244.2015

    authors: Hurst VW,Peterson S,Garcia K,Ebert D,Ham D,Amponsah D,Dulchavsky S

    更新日期:2015-12-01 00:00:00

  • U.S. Statement of Demonstrated Ability Aeromedical Waivers.

    abstract::INTRODUCTION: The Statement of Demonstrated Ability (SODA) is a type of U.S. aeromedical waiver used for disqualifying conditions that are not expected to change. About 21,000 (2%) U.S. pilots possess a SODA waiver.METHODS: We matched all pilot medical exams from the FAA's medical certification database from 2002 thro...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5420.2019

    authors: Mills WD,Davis JT

    更新日期:2019-12-01 00:00:00

  • A Modified Protocol for Color Vision Screening Using Ishihara.

    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

    authors: Chorley AC

    更新日期:2015-08-01 00:00:00

  • Dynamic Cerebral Autoregulation During the Combination of Mild Hypercapnia and Cephalad Fluid Shift.

    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

    authors: Kurazumi T,Ogawa Y,Yanagida R,Morisaki H,Iwasaki KI

    更新日期:2017-09-01 00:00:00

  • Hypertension and Obesity Among Civil Aviation Pilots.

    abstract::BACKGROUND: Raised blood pressure (BP) is a risk factor for cardiovascular disease, which is a common cause of sudden in-flight incapacitation among pilots. Prevalence of hypertension (HT) among pilots as per new criteria is largely unknown. This study aims to understand the prevalence of hypertension and obesity in c...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.5374.2019

    authors: Bhat KG,Verma N,Pant P,Singh Marwaha MP

    更新日期:2019-08-01 00:00:00

  • Time-Dependent Changes in Cerebral Blood Flow and Arterial Pressure During Mild +Gz Hypergravity.

    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

    authors: Konishi T,Kurazumi T,Kato T,Takko C,Ogawa Y,Iwasaki KI

    更新日期:2018-09-01 00:00:00

  • Noise Exposure and Hearing Impairment in Air Force Pilots.

    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

    authors: Muhr P,Johnson AC,Selander J,Svensson E,Rosenhall U

    更新日期:2019-09-01 00:00:00

  • Tolerance of centrifuge-simulated suborbital spaceflight in subjects with implanted insulin pumps.

    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

    authors: Levin DR,Blue RS,Castleberry TL,Vanderploeg JM

    更新日期:2015-04-01 00:00:00

  • High-Altitude Decompression Sickness Treated with Hyperbaric Therapy and Extracorporeal Oxygenation.

    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

    authors: Siewiera J,Szałański P,Tomaszewski D,Kot J

    更新日期:2020-02-01 00:00:00

  • Hypobaric Conditions and Retention of Dental Crowns Luted with Manually or Automixed Dental Cements.

    abstract:BACKGROUND:There is only scant information on the influence of the hypobaric environment on luting agents and their efficacy on dental crown cementation. The objective of this study was to provide data on the retentive characters of two cements commonly used on implant abutment surfaces both under normal and under hypo...

    journal_title:Aerospace medicine and human performance

    pub_type: 杂志文章

    doi:10.3357/AMHP.4992.2018

    authors: Kielbassa AM,Müller JAG

    更新日期:2018-05-01 00:00:00

  • Extended High-Frequency Audiometry (9-20 kHz) in Civilian Pilots.

    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

    authors: Ma F,Gong S,Liu S,Hu M,Qin C,Bai Y

    更新日期:2018-07-01 00:00:00