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Han S, Zhao L, Ma S, Chen Z, Wu S, Shen M, Xia G, Jia G. Alterations to cardiac morphology and function among high-altitude workers: a retrospective cohort study. Occup Environ Med 2020; 77:447-453. [PMID: 32269133 DOI: 10.1136/oemed-2019-106108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 03/17/2020] [Accepted: 03/30/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVES Exposure to high altitude can affect human health, including the development of adverse cardiovascular effects. This study aimed to investigate alterations in cardiac morphology and function in high-altitude workers and to identify risk factors associated with cardiac abnormalities. METHODS A retrospective cohort study was conducted with 286 Qinghai-Tibetan Railroad maintenance workers. Participant data were collected from company personnel records. Data on echocardiography and diagnosis of cardiac abnormalities were extracted from participants' medical records. Time-to-event analysis was used to investigate the risk of cardiac abnormalities among participants with different baseline characteristics and identify risk factors associated with cardiac abnormalities that developed as a result of working at high altitude. RESULTS A total of 173 participants had developed cardiac abnormalities during the follow-up period. The most common cardiac abnormality was right atrial enlargement, followed by left ventricular diastolic dysfunction and tricuspid regurgitation. Among participants with cardiac abnormalities, the median follow-up time was 17 months. Compared with participants who were younger than 20 years and working at altitude <4000 m, participants older at employment and working at extremely high altitude were more likely to develop cardiac abnormalities. Nearly 40% of the participants who worked at altitude <4000 m remained without cardiac abnormalities during the follow-up period. CONCLUSIONS Over 60% of participants developed cardiac abnormalities after working at high altitude, predominantly right heart enlargement and left ventricular diastolic dysfunction. Age at employment and workplace altitude were significant risk factors for cardiac abnormalities. Enhanced regular physical examinations are recommended for high-altitude workers.
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Affiliation(s)
- Shurong Han
- Labor & Health Department, China Railway, No.10 Fuxing Road, Beijing, China
| | - Lin Zhao
- Department of Epidemiology, School of Public Health, Shandong University, No.44 Wenhuaxi Road, Jinan, China
| | - Shiwei Ma
- Energy Saving & Environmental & Occupational Safety and Health Research Institute, China Academy of Railway Sciences Co., Ltd, No.2 Daliushu Road, Beijing, China
| | - Zhangjian Chen
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No.38 Xueyuan Road, Beijing, China
| | - Shiping Wu
- Labor & Health Department, China Railway, No.10 Fuxing Road, Beijing, China
| | - Min Shen
- Labor & Health Department, China Railway Qinghai-Tibet Group Co., Ltd., No.22 Jianguo Road, Xining, China
| | - Guobin Xia
- China Railway 12th Bureau Group Railway Maintenance Engineering Co., Ltd., No.13-1 Linqionggang Road, Lhasa, China
| | - Guang Jia
- Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, No.38 Xueyuan Road, Beijing, China
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Garrido E, Botella de Maglia J, Castillo O. Acute, subacute and chronic mountain sickness. Rev Clin Esp 2020; 221:S0014-2565(20)30064-3. [PMID: 32197780 DOI: 10.1016/j.rce.2019.12.013] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 12/16/2019] [Indexed: 11/20/2022]
Abstract
More than 100 million people ascend to high mountainous areas worldwide every year. At nonextreme altitudes (<5500 m), 10-85% of these individuals are affected by acute mountain sickness, the most common disease induced by mild-moderate hypobaric hypoxia. Approximately 140 million individuals live permanently at heights of 2500-5500 m, and up to 10% of them are affected by the subacute form of mountain sickness (high-altitude pulmonary hypertension) or the chronic form (Monge's disease), the latter of which is especially common in Andean ethnicities. This review presents the most relevant general concepts of these 3 clinical variants, which can be incapacitating and can result in complications and become life-threatening. Proper prevention, diagnosis, treatment and management of these conditions in a hostile environment such as high mountains are therefore essential.
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Affiliation(s)
- E Garrido
- Servicio de Hipobaria y Fisiología Biomédica, Universidad de Barcelona, L'Hospitalet de Llobregat, Barcelona, España; Instituto de Estudios de Medicina de Montaña (IEMM), Barcelona, España.
| | - J Botella de Maglia
- Servicio de Medicina Intensiva, Hospital Universitario y Politécnico La Fe, Valencia, España; Instituto de Estudios de Medicina de Montaña (IEMM), Barcelona, España
| | - O Castillo
- Instituto Nacional de Biología Andina, Universidad Nacional Mayor de San Marcos, Lima, Perú
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Faini A, Caravita S, Parati G, Castiglioni P. Alterations of Cardiovascular Complexity during Acute Exposure to High Altitude: A Multiscale Entropy Approach. ENTROPY 2019. [PMCID: PMC7514569 DOI: 10.3390/e21121224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Stays at high altitude induce alterations in cardiovascular control and are a model of specific pathological cardiovascular derangements at sea level. However, high-altitude alterations of the complex cardiovascular dynamics remain an almost unexplored issue. Therefore, our aim is to describe the altered cardiovascular complexity at high altitude with a multiscale entropy (MSE) approach. We recorded the beat-by-beat series of systolic and diastolic blood pressure and heart rate in 20 participants for 15 min twice, at sea level and after arrival at 4554 m a.s.l. We estimated Sample Entropy and MSE at scales of up to 64 beats, deriving average MSE values over the scales corresponding to the high-frequency (MSEHF) and low-frequency (MSELF) bands of heart-rate variability. We found a significant loss of complexity at heart-rate and blood-pressure scales complementary to each other, with the decrease with high altitude being concentrated at Sample Entropy and at MSEHF for heart rate and at MSELF for blood pressure. These changes can be ascribed to the acutely increased chemoreflex sensitivity in hypoxia that causes sympathetic activation and hyperventilation. Considering high altitude as a model of pathological states like heart failure, our results suggest new ways for monitoring treatments and rehabilitation protocols.
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Affiliation(s)
- Andrea Faini
- Istituto Auxologico Italiano, IRCCS, Department of Cardiovascular, Neural and Metabolic Sciences, S.Luca Hospital, 20149 Milan, Italy; (A.F.); (S.C.)
| | - Sergio Caravita
- Istituto Auxologico Italiano, IRCCS, Department of Cardiovascular, Neural and Metabolic Sciences, S.Luca Hospital, 20149 Milan, Italy; (A.F.); (S.C.)
- Department of Management, Information and Production Engineering, University of Bergamo, 24044 Dalmine, Italy
| | - Gianfranco Parati
- Istituto Auxologico Italiano, IRCCS, Department of Cardiovascular, Neural and Metabolic Sciences, S.Luca Hospital, 20149 Milan, Italy; (A.F.); (S.C.)
- Department of Medicine and Surgery, University of Milano-Bicocca, 20126 Milan, Italy
- Correspondence:
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Estoppey J, Léger B, Vuistiner P, Sartori C, Kayser B. Low- and High-Altitude Cortisol Awakening Responses Differ Between AMS-Prone and AMS-Resistant Mountaineers. High Alt Med Biol 2019; 20:344-351. [DOI: 10.1089/ham.2019.0035] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Jan Estoppey
- Institute of Sport Sciences, Synathlon, Uni-Centre, Lausanne, Switzerland
| | - Bertrand Léger
- Department of Medical Research, Romandie Clinic for Rehabilitation, Sion, Switzerland
| | - Philippe Vuistiner
- Department of Medical Research, Romandie Clinic for Rehabilitation, Sion, Switzerland
| | - Claudio Sartori
- Department of Internal Medicine, University Hospital, Lausanne, Switzerland
| | - Bengt Kayser
- Institute of Sport Sciences, Synathlon, Uni-Centre, Lausanne, Switzerland
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Li C, Li X, Xiao J, Liu J, Fan X, Fan F, Lei H. Genetic changes in the EPAS1 gene between Tibetan and Han ethnic groups and adaptation to the plateau hypoxic environment. PeerJ 2019; 7:e7943. [PMID: 31681516 PMCID: PMC6822597 DOI: 10.7717/peerj.7943] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 09/24/2019] [Indexed: 01/11/2023] Open
Abstract
In the Chinese Han population, prolonged exposure to hypoxic conditions can promote compensatory erythropoiesis which improves hypoxemia. However, Tibetans have developed unique phenotypes, such as downregulation of the hypoxia-inducible factor pathway through EPAS1 gene mutation, thus the mechanism of adaption of the Han population should be further studied. The results indicated that, under plateau hypoxic conditions, the plains population was able to acclimate rapidly to hypoxia through increasing EPAS1 mRNA expression and changing the hemoglobin conformation. Furthermore, the mutant genotype frequencies of the rs13419896, rs1868092 and rs4953354 loci in the EPAS1 gene were significantly higher in the Tibetan population than in the plains population. The EPAS1 gene expression level was lowest in the Han population carrying the A-A homozygous mutant of the rs13419896 locus but that it increased rapidly after these individuals entered the plateau. At this time, the hemoglobin content was lower in the homozygous mutant Han group than in the wild-type and heterozygous mutant populations, and the viscosity of blood was reduced in populations carrying the A-A haplotypes in rs13419896 and rs1868092 Among Tibetans, the group carrying homozygous mutations of the three SNPs also had lower hemoglobin concentrations than the wild-type. The Raman spectroscopy results showed that exposure of the Tibetan and Han population to hypoxic conditions changed the spatial conformation of hemoglobin and its binding ability to oxygen. The Tibetan population has mainly adapted to the plateau through genetic mutations, whereas some individuals adapt through changes in hemoglobin structure and function.
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Affiliation(s)
- Cuiying Li
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
| | - Xiaowei Li
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
| | - Jun Xiao
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
| | - Juan Liu
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
| | - Xiu Fan
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
| | - Fengyan Fan
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
| | - Huifen Lei
- Department of Blood Transfusion, Air Force Medical Center, PLA, Beijing, China
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Métrailler P, Greiser J, Dietrich G, Walter D, Richon J, Walliser M, Wiget U, Sartori C. Swiss Mountain Guides: Medical Education, Knowledge, and Practice. High Alt Med Biol 2019; 20:251-261. [DOI: 10.1089/ham.2018.0124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Pierre Métrailler
- Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Emergency Service, Lausanne University Hospital, Switzerland
- GRIMM, Groupe d'Intervention Médicale en Montagne, Maison FXB du Sauvetage, Sion, Switzerland
| | - Jens Greiser
- Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Gilles Dietrich
- Medical School, University of Lausanne, Lausanne, Switzerland
| | - Daniel Walter
- General Internal Medicine Practice, Pragg-Jenaz, Switzerland
| | - Jacques Richon
- GRIMM, Groupe d'Intervention Médicale en Montagne, Maison FXB du Sauvetage, Sion, Switzerland
- General Surgery Practice, Martigny, Switzerland
| | - Martin Walliser
- General Surgery, Trauma Unit, State Hospital Glarus, Glarus, Switzerland
| | - Urs Wiget
- GRIMM, Groupe d'Intervention Médicale en Montagne, Maison FXB du Sauvetage, Sion, Switzerland
| | - Claudio Sartori
- Internal Medicine, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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Huang H, Dong H, Zhang J, Ke X, Li P, Zhang E, Xu G, Sun B, Gao Y. The Role of Salivary miR-134-3p and miR-15b-5p as Potential Non-invasive Predictors for Not Developing Acute Mountain Sickness. Front Physiol 2019; 10:898. [PMID: 31379603 PMCID: PMC6646415 DOI: 10.3389/fphys.2019.00898] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 06/27/2019] [Indexed: 01/28/2023] Open
Abstract
Background Acute mountain sickness (AMS) is a crucial public health problem for high altitude travelers. Discriminating individuals who are not developing (AMS resistance, AMS−) from developing AMS (AMS susceptibility, AMS+) at baseline would be vital for disease prevention. Salivary microRNAs (miRNAs) have emerged as promising non-invasive biomarkers for various diseases. Thus, the aim of our study was to identify the potential roles of salivary miRNAs in identifying AMS− individuals pre-exposed to high altitude. Moreover, as hypoxia is the triggering factor for AMS, present study also explored the association between cerebral tissue oxygenation indices (TOI) and AMS development after exposed to high altitude, which was the complementary aim. Methods In this study, 124 healthy men were recruited, and were exposed at simulated high altitude of 4,500 m. Salivary miR-134-3p and miR-15b-5p were measured at baseline (200 m). AMS was diagnosed based on Lake Louise Scoring System at 4,500 m. The measurements of physiological parameters were recorded at both the altitudes. Results Salivary miR-134-3p and miR-15b-5p were significantly up-regulated in AMS− individuals as compared to the AMS+ (p < 0.05). In addition, the combination of these miRNAs generated a high power for discriminating the AMS− from AMS+ at baseline (AUC: 0.811, 95% CI: 0.731−0.876, p < 0.001). Moreover, the value of cerebral TOIs at 4,500 m were significantly higher in AMS− individuals, compared to AMS+ (p < 0.01). Conclusion Our study reveals for the first time that salivary miR-134-3p and miR-15b-5p can be used as non-invasive biomarkers for predicting AMS− individuals pre-exposed to high altitude.
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Affiliation(s)
- He Huang
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Huaping Dong
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Jianyang Zhang
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Xianfeng Ke
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Peng Li
- Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China.,Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Erlong Zhang
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Gang Xu
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Bingda Sun
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
| | - Yuqi Gao
- Institute of Medicine and Hygienic Equipment for High Altitude Region, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Key Laboratory of Extreme Environmental Medicine, Ministry of Education of China, Chongqing, China.,Key Laboratory of High Altitude Medicine, PLA, Chongqing, China
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Vinnikov D, Nenna R, Soumagne T. Will an electronic nose help at high altitude? Breathe (Sheff) 2018; 14:322-324. [PMID: 30519300 PMCID: PMC6269179 DOI: 10.1183/20734735.019918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
An electronic nose does not simply detect the concentrations of selected VOCs in the exhaled air, but verifies the cumulative signature, reflecting the overall VOC concentration. This technology is novel but promising. http://ow.ly/IPCt30mbIBV.
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Affiliation(s)
- Denis Vinnikov
- School of Public Health, al-Farabi Kazakh National University, Almaty, Kazakhstan
| | - Raffaella Nenna
- Dept of Paediatrics, "Sapienza" University of Rome, Rome, Italy
| | - Thibaud Soumagne
- Dept of Respiratory Medicine, University Hospital, Besançon, France.,Dept of Physiology, University Hospital, Besançon, France
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Rahim N, Aziz W, Rashid WNA, Tumari Z, Hassan WHW, Najib SM, Hashim N, Rama NSA. Intelligent Self-Propelling Baby Stroller with Obstacle Avoidance. 2018 4TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONICS AND SYSTEM ENGINEERING (ICEESE) 2018. [DOI: 10.1109/iceese.2018.8703589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Aziz W, Rahim N, Abd Rashid WN, Tumari Z, Subki SR, Kadir M, Che Aziz SA, Saqinah Abdul Aziz N. Emergency Power Pack with Navigation System for Mount Climber. 2018 4TH INTERNATIONAL CONFERENCE ON ELECTRICAL, ELECTRONICS AND SYSTEM ENGINEERING (ICEESE) 2018. [DOI: 10.1109/iceese.2018.8703554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Furian M, Flueck D, Latshang TD, Scheiwiller PM, Segitz SD, Mueller-Mottet S, Murer C, Steiner A, Ulrich S, Rothe T, Kohler M, Bloch KE. Exercise performance and symptoms in lowlanders with COPD ascending to moderate altitude: randomized trial. Int J Chron Obstruct Pulmon Dis 2018; 13:3529-3538. [PMID: 30464436 PMCID: PMC6208550 DOI: 10.2147/copd.s173039] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Objective To evaluate the effects of altitude travel on exercise performance and symptoms in lowlanders with COPD. Design Randomized crossover trial. Setting University Hospital Zurich (490 m), research facility in mountain villages, Davos Clavadel (1,650 m) and Davos Jakobshorn (2,590 m). Participants Forty COPD patients, Global Initiative for Obstructive Lung Disease (GOLD) grade 2–3, living below 800 m, median (quartiles) age 67 y (60; 69), forced expiratory volume in 1 second 57% predicted (49; 70). Intervention Two-day sojourns at 490 m, 1,650 m, and 2,590 m in randomized order. Outcome measures Six-minute walk distance (6MWD), cardiopulmonary exercise tests, symptoms, and other health effects. Results At 490 m, days 1 and 2, median (quartiles) 6MWD were 558 m (477; 587) and 577 m (531; 629). At 2,590 m, days 1 and 2, mean changes in 6MWD from corresponding day at 490 m were −41 m (95% CI −51 to −31) and −40 m (−53 to −27), n=40, P<0.05, both changes. At 1,650 m, day 1, 6MWD had changed by −22 m (−32 to −13), maximal oxygen uptake during bicycle exercise by −7% (−13 to 0) vs 490 m, P<0.05, both changes. At 490 m, 1,650 m, and 2,590 m, day 1, resting PaO2 were 9.0 (8.4; 9.4), 8.1 (7.5; 8.6), and 6.8 (6.3; 7.4) kPa, respectively, P<0.05 higher altitudes vs 490 m. While staying at higher altitudes, nine patients (24%) experienced symptoms or adverse health effects requiring oxygen therapy or relocation to lower altitude. Conclusion During sojourns at 1,650 m and 2,590 m, lowlanders with moderate to severe COPD experienced a mild reduction in exercise performance and nearly one quarter required oxygen therapy or descent to lower altitude because of adverse health effects. The findings may help to counsel COPD patients planning altitude travel. Registration ClinicalTrials.gov: NCT01875133
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Affiliation(s)
- Michael Furian
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Deborah Flueck
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Tsogyal D Latshang
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Philipp M Scheiwiller
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | | | | | - Christian Murer
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Adrian Steiner
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Silvia Ulrich
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Thomas Rothe
- Zuercher RehaZentrum Davos, Davos Clavadel, Switzerland
| | - Malcolm Kohler
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
| | - Konrad E Bloch
- Department of Respiratory Medicine, University Hospital of Zurich, Zurich, Switzerland,
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Furian M, Lichtblau M, Aeschbacher SS, Estebesova B, Emilov B, Sheraliev U, Marazhapov NH, Mademilov M, Osmonov B, Bisang M, Ulrich S, Latshang TD, Ulrich S, Sooronbaev TM, Bloch KE. Efficacy of Dexamethasone in Preventing Acute Mountain Sickness in COPD Patients. Chest 2018; 154:788-797. [DOI: 10.1016/j.chest.2018.06.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/23/2018] [Accepted: 06/01/2018] [Indexed: 11/26/2022] Open
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64
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Roach RC, Hackett PH, Oelz O, Bärtsch P, Luks AM, MacInnis MJ, Baillie JK. The 2018 Lake Louise Acute Mountain Sickness Score. High Alt Med Biol 2018; 19:4-6. [PMID: 29583031 DOI: 10.1089/ham.2017.0164] [Citation(s) in RCA: 279] [Impact Index Per Article: 46.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Roach, Robert C., Peter H. Hackett, Oswald Oelz, Peter Bärtsch, Andrew M. Luks, Martin J. MacInnis, J. Kenneth Baillie, and The Lake Louise AMS Score Consensus Committee. The 2018 Lake Louise Acute Mountain Sickness Score. High Alt Med Biol 19:1-4, 2018.- The Lake Louise Acute Mountain Sickness (AMS) scoring system has been a useful research tool since first published in 1991. Recent studies have shown that disturbed sleep at altitude, one of the five symptoms scored for AMS, is more likely due to altitude hypoxia per se, and is not closely related to AMS. To address this issue, and also to evaluate the Lake Louise AMS score in light of decades of experience, experts in high altitude research undertook to revise the score. We here present an international consensus statement resulting from online discussions and meetings at the International Society of Mountain Medicine World Congress in Bolzano, Italy, in May 2014 and at the International Hypoxia Symposium in Lake Louise, Canada, in February 2015. The consensus group has revised the score to eliminate disturbed sleep as a questionnaire item, and has updated instructions for use of the score.
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Affiliation(s)
- Robert C Roach
- 1 Altitude Research Center, Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine , Anschutz Medical Campus, Aurora, Colorado
| | - Peter H Hackett
- 1 Altitude Research Center, Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine , Anschutz Medical Campus, Aurora, Colorado
| | - Oswald Oelz
- 2 Department of Internal Medicine, University of Zurich , Switzerland
| | - Peter Bärtsch
- 3 Department of Internal Medicine, University Hospital , Heidelberg, Germany
| | - Andrew M Luks
- 4 Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington , Seattle, WA
| | | | - J Kenneth Baillie
- 6 Roslin Institute, University of Edinburgh , Easter Bush, Midlothian, United Kingdom .,7 Intensive Care Unit, Royal Infirmary Edinburgh, Edinburgh, United Kingdom
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