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High Altitude Medicine & Biology

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https://www.readbyqxmd.com/read/28816526/echocardiographic-assessment-of-right-ventricle-dimensions-and-function-after-exposure-to-extreme-altitude-is-an-expedition-to-8000%C3%A2-m-hazardous-for-right-ventricular-function
#1
Marta Kurdziel, Jarosław Wasilewski, Karolina Gierszewska, Anna Kazik, Gracjan Pytel, Jacek Wacławski, Adam Krajewski, Anna Kurek, Lech Poloński, Mariusz Gąsior
Kurdziel, Marta, Jarosław Wasilewski, Karolina Gierszewska, Anna Kazik, Gracjan Pytel, Jacek Wacławski, Adam Krajewski, Anna Kurek, Lech Poloński, and Mariusz Gąsior. Echocardiographic assessment of right ventricle dimensions and function after exposure to extreme altitude: Is an expedition to 8000 m hazardous for right ventricular function? High Alt Med Biol 00:000-000, 2017.-Although the right ventricle (RV) is under great hypoxic stress at altitude, still little is known what happens to the RV after descent...
August 17, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28787190/blood-pressure-and-altitude-an-observational-cohort-study-of-hypertensive-and-nonhypertensive-himalayan-trekkers-in-nepal
#2
Linda E Keyes, Thomas Douglas Sallade, Charles Duke, Jennifer Starling, Alison Sheets, Sushil Pant, David S Young, David Twillman, Nirajan Regmi, Benoit Phelan, Purshotam Paudel, Matthew McElwee, Luke Mather, Devlin Cole, Theodore McConnell, Buddha Basnyat
Keyes, Linda E, Thomas Douglas Sallade, Charles Duke, Jennifer Starling, Alison Sheets, Sushil Pant, David S. Young, David Twillman, Nirajan Regmi, Benoit Phelan, Purshotam Paudel, Matthew McElwee, Luke Mather, Devlin Cole, Theodore McConnell, and Buddha Basnyat. Blood pressure and altitude: an observational cohort study of hypertensive and nonhypertensive Himalayan trekkers in Nepal. High Alt Med Biol 00:000-000, 2017. OBJECTIVES: To determine how blood pressure (BP) changes with altitude in normotensive versus hypertensive trekkers...
August 8, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28753037/-direct-and-indirect-methods-to-detect-oxidative-stress-during-acute-or-chronic-high-altitude-exposure
#3
Simona Mrakic-Sposta, Alessandra Vezzoli, Sandro Malacrida, Marika Falla, Giacomo Strapazzon
No abstract text is available yet for this article.
July 28, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28742397/morbidity-in-the-mountainous-province-of-kyrgyzstan-results-from-a-population-based-cross-sectional-study
#4
Nurlan Brimkulov, Louis Louton, Salima Sydykova, Denis Vinnikov, Farida Imanalieva
Brimkulov, Nurlan, Louis Louton, Salima Sydykova, Denis Vinnikov, and Farida Imanalieva. Morbidity in the mountainous Province of Kyrgyzstan: results from a population-based cross-sectional study. High Alt Med Biol 00:000-000, 2017.-The aim of this study was to identify the main causes of using primary care facilities in the mountainous Naryn Province of Kyrgyzstan to set resources allocation priorities. We collected data on all admissions to family doctors in three Family Medical Centers (FMCs) in Naryn Province: (1) the city of Naryn (2200 meters above sea level [MASL]); (2) the town of At-Bashy (3200 MASL); and the town of Kochkor (1800 MASL) by using an original questionnaire during one full week (5 days) in spring 2016...
July 25, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28704070/geographic-variation-in-mentally-unhealthy-days-air-pollution-and-altitude-perspectives
#5
Hoehun Ha
Ha, H. Geographic variation in mentally unhealthy days: air pollution and altitude perspectives. High Alt Med Biol 00:000-000, 2017.- Background: Mental health incorporates our emotional, psychological, and social well-being and it is critical at each phase of life, from youth and preadulthood through adulthood. METHODS: We assessed the association between mentally unhealthy days (MUDs), air pollutant concentrations, and altitude on the basis of cross-county studies. Data on poor mental health days for the United States were based on health-related telephone surveys conducted by the Behavioral Risk Factor Surveillance System (BRFSS)...
July 13, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28665150/association-between-plasma-n-acylethanolamides-and-high-hemoglobin-concentration-in-southern-peruvian-highlanders
#6
Dulce E Alarcón-Yaquetto, Lidia Caballero, Gustavo F Gonzales
Alarcón-Yaquetto, Dulce E., Lidia Caballero, and Gustavo F. Gonzales. Association between plasma N-acylethanolamides and high hemoglobin concentration in Southern Peruvian highlanders. High Alt Med Biol 00:000-000, 2017.-High-altitude (HA) hypoxia is a stressful condition endured by organisms through different mechanisms. Failing to adapt to chronic HA exposure leads to a disease called chronic mountain sickness (CMS) characterized by excessive erythrocytosis (hemoglobin [Hb] ≥19 g/dL for women and ≥21 g/dL for men)...
June 30, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28628341/observational-study-of-neural-respiratory-drive-during-sleep-at-high-altitude
#7
Joerg Steier, Nic Cade, Ben Walker, John Moxham, Caroline Jolley
Steier, Joerg, Nic Cade, Ben Walker, John Moxham, and Caroline Jolley. Observational study of neural respiratory drive during sleep at high altitude. High Alt Med Biol. 16:000-000, 2017. AIMS: Ventilation at altitude changes due to altered levels of pO2, pCO2 and the effect on blood pH. Nocturnal ventilation is particularly exposed to these changes. We hypothesized that an increasing neural respiratory drive (NRD) is associated with the severity of sleep-disordered breathing at altitude...
June 19, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28604118/practical-tips-for-working-as-an-expedition-doctor-on-high-altitude-expeditions
#8
Anne Brants, Tracee Metcalfe
Brants, Anne, and Tracee Metcalfe. Practical tips for working as an expedition doctor on high-altitude expeditions. High Alt Med Biol 00:000-000, 2017.-With the explosion of adventure travel over the past decade, there has been a concurrent increase in mountaineering expeditions to extreme elevations, including many of the 8000-m peaks. This trend has created an increased demand for qualified expedition doctors to provide specialized medical advice and care to climbers and expedition staff. This review is intended to help physicians prepare for work on such expeditions...
June 12, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28581355/pathologizing-altitude-does-altitude-really-increase-sleep-disordered-breathing
#9
Santiago Ucrós Rodríguez
No abstract text is available yet for this article.
June 5, 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28632449/prevalence-of-essential-hypertension-and-its-complications-among-chinese-population-at-high-altitude
#10
Le Yue, Zhiqing Fan, Lin Sun, Wei Feng, Jingjie Li
Yue Le, Zhiqing Fan, Lin Sun, Wei Feng, and Jingjie Li. Prevalence of essential hypertension and its complications among Chinese population at high altitude. High Alt Med Biol. 18:140-144, 2017. OBJECTIVES: This study examined the prevalence of essential hypertension (EH) and its complications among Chinese population at different altitude regions in Qinghai province. METHODS: This cross-sectional analysis used data from 2000 residents living in the area with two different latitudes for more than 20 years, using 1:1 pairing mode...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28530447/middle-ear-function-and-pathophysiology-in-andean-children-living-at-high-altitudes
#11
S Allen Counter, Leo H Buchanan, Fernando Ortega, Anthony B Jacobs, Göran Laurell
Counter, S. Allen, Leo H. Buchanan, Fernando Ortega, Anthony B. Jacobs, and Göran Laurell. Middle ear function and pathophysiology in Andean children living at high altitudes. High Alt Med Biol. 18:163-170, 2017.-The extent of altitude-related middle ear disorders in children native to high altitudes is unclear. This study examined middle ear pathophysiology in two groups of children living in high-altitude Ecuadorian Andean communities by investigating middle ear pressure (MEP), tympanic membrane compliance (TMC), and ear canal volume (ECV) using tympanometry, and by otological examination...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28509579/findings-of-cognitive-impairment-at-high-altitude-relationships-to-acetazolamide-use-and-acute-mountain-sickness
#12
Lara Phillips, Buddha Basnyat, Yuchiao Chang, Erik R Swenson, N Stuart Harris
Phillips, Lara, Buddha Basnyat, Yuchiao Chang, Erik R. Swenson, and N. Stuart Harris. Findings of cognitive impairment at high altitude: relationships to acetazolamide use and acute mountain sickness. High Alt Med Biol. 18:121-127, 2017. OBJECTIVE: Acute mountain sickness (AMS) is defined by patient-reported symptoms using the Lake Louise Score (LLS), which provides limited insight into any possible underlying central nervous system (CNS) dysfunction. Some evidence suggests AMS might coexist with altered neural functioning...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28453305/a-clinician-guide-to-altitude-training-for-optimal-endurance-exercise-performance-at-sea-level
#13
Keren Constantini, Daniel P Wilhite, Robert F Chapman
Constantini, Keren, Daniel P. Wilhite, and Robert F. Chapman. A clinician guide to altitude training for optimal endurance exercise performance at sea level. High Alt Med Biol. 18:93-101, 2017.-For well over 50 years, endurance athletes have been utilizing altitude training in an effort to enhance performance in sea level competition. This brief review will offer the clinician a series of evidence-based best-practice guidelines on prealtitude and altitude training considerations, which can ultimately maximize performance improvement outcomes...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28418708/long-trekking-experience-at-high-altitude-causes-testicular-volumetric-reduction-in-humans-evidence-based-on-magnetic-resonance-imaging
#14
Vittore Verratti, Armando Tartaro, Stefano Falone, Maurizio Pellegrini, Fiore Pelliccione, Camillo Di Giulio
No abstract text is available yet for this article.
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28398844/breathlessness-at-high-altitude-first-episode-of-bronchoconstriction-in-an-otherwise-healthy-sojourner
#15
Sanjeeb Sudarshan Bhandari, Pranawa Koirala, Sadichhya Lohani, Pratibha Phuyal, Buddha Basnyat
Bhandari, Sanjeeb Sudarshan, Pranawa Koirala, Sadichhya Lohani, Pratibha Phuyal, and Buddha Basnyat. Breathlessness at high altitude: first episode of bronchoconstriction in an otherwise healthy sojourner. High Alt Med Biol.. 18:179-181, 2017-High-altitude illness is a collective term for less severe acute mountain sickness and more severe high-altitude pulmonary edema (HAPE) and high-altitude cerebral edema, which we can experience while traveling to high altitude. These get better when we get down to the lower altitudes...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28394182/medex2015-greater-sea-level-fitness-is-associated-with-lower-sense-of-effort-during-himalayan-trekking-without-worse-acute-mountain-sickness
#16
Gabriella M K Rossetti, Jamie H Macdonald, Matthew Smith, Anna R Jackson, Nigel Callender, Hannah K Newcombe, Heather M Storey, Sebastian Willis, Jojanneke van den Beukel, Jonathan Woodward, James Pollard, Benjamin Wood, Victoria Newton, Jana Virian, Owen Haswell, Samuel J Oliver
Rossetti, Gabriella M.K., Jamie H. Macdonald, Matthew Smith, Anna R. Jackson, Nigel Callender, Hannah K. Newcombe, Heather M. Storey, Sebastian Willis, Jojanneke van den Beukel, Jonathan Woodward, James Pollard, Benjamin Wood, Victoria Newton, Jana Virian, Owen Haswell, and Samuel J. Oliver. MEDEX2015: Greater sea-level fitness is associated with lower sense of effort during Himalayan trekking without worse acute mountain sickness. High Alt Med Biol. 18:152-162, 2017.-This study examined the complex relationships of fitness and hypoxic sensitivity with submaximal exercise responses and acute mountain sickness (AMS) at altitude...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28375664/effects-of-short-term-acclimatization-at-the-summit-of-mt-fuji-3776%C3%A2-m-on-sleep-efficacy-cardiovascular-responses-and-ventilatory-responses
#17
Masahiro Horiuchi, Shiro Oda, Tadashi Uno, Junko Endo, Yoko Handa, Yoshiyuki Fukuoka
Horiuchi, Masahiro, Shiro Oda, Tadashi Uno, Junko Endo, Yoko Handa, and Yoshiyuki Fukuoka. Effects of short-term acclimatization at the summit of Mt. Fuji (3776 m) on sleep efficacy, cardiovascular responses, and ventilatory responses. High Alt Med Biol. 18:171-178, 2017.-We investigated the effects of a short period of acclimatization, at 3776 m on Mt. Fuji, on sleep parameters and related physiological responses. Physiological responses were assessed in seven healthy lowlander men during both daytime and sleep while at sea level (SL), as well as for three consecutive nights at high altitude (HA; 3776 m, day 1 [D1], D2, D3, and morning only of D4)...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28346847/does-acute-normobaric-hypoxia-induce-anapyrexia-in-adult-humans
#18
Yongsuk Seo, Hayden D Gerhart, Jeremiah Vaughan, Jung-Hyun Kim, Ellen L Glickman
Seo, Yongsuk, Hayden D. Gerhart, Jeremiah Vaughan, Jung-Hyun Kim, and Ellen L. Glickman. Does acute normobaric hypoxia induce anapyrexia in adult humans? High Alt Med Biol. 18:185-190, 2017.-Exposure to hypoxia is known to induce a reduction in core body temperature as a protective mechanism, which has been shown in both animals and humans. The purpose of this study was to test if acute exposure to normobaric hypoxia (NH) induces anapyrexia in adult humans in association with decreased peripheral oxygen saturation (SpO2)...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28294639/physiological-changes-to-the-cardiovascular-system-at-high-altitude-and-its-effects-on-cardiovascular-disease
#19
Callum James Riley, Matthew Gavin
Riley, Callum James, and Matthew Gavin. Physiological changes to the cardiovascular system at high altitude and its effects on cardiovascular disease. High Alt Med Biol. 18:102-113, 2017.-The physiological changes to the cardiovascular system in response to the high altitude environment are well understood. More recently, we have begun to understand how these changes may affect and cause detriment to cardiovascular disease. In addition to this, the increasing availability of altitude simulation has dramatically improved our understanding of the physiology of high altitude...
June 2017: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/28486037/role-of-arcuate-nucleus-in-the-regulation-of-feeding-behavior-in-the-process-of-altitude-acclimatization-in-rats
#20
Xiang-Wen Liu, Jie Yin, Qi-Sheng Ma, Chu-Chu Qi, Ji-Ying Mu, Lang Zhang, Li-Ping Gao, Yu-Hong Jing
Liu, Xiang-Wen, Jie Yin, Qi-Sheng Ma, Chu-Chu Qi, Ji-Ying Mu, Lang Zhang, Li-Ping Gao, and Yu-Hong Jing. Role of arcuate nucleus in the regulation of feeding behavior in the process of altitude acclimatization in rats. High Alt Med Biol. 00:000-000, 2017.-Highly efficient energy utilization and metabolic homeostasis maintenance rely on neuromodulation. Altitude exposure is known to stimulate neuroendocrine systems to respond to acute hypoxia and adaptive acclimatization. However, limited data on how the adaptive regulation of the arcuate nucleus performs in the process of altitude acclimatization are available...
May 9, 2017: High Altitude Medicine & Biology
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