PMID- 28007792 OWN - NLM STAT- MEDLINE DCOM- 20180226 LR - 20180618 IS - 1399-3003 (Electronic) IS - 0903-1936 (Linking) VI - 49 IP - 2 DP - 2017 Feb TI - Association between sleep apnoea and pulmonary hypertension in Kyrgyz highlanders. LID - 1601530 [pii] LID - 10.1183/13993003.01530-2016 [doi] AB - This case-control study evaluates a possible association between high altitude pulmonary hypertension (HAPH) and sleep apnoea in people living at high altitude.Ninety highlanders living at altitudes >2500 m without excessive erythrocytosis and with normal spirometry were studied at 3250 m (Aksay, Kyrgyzstan); 34 healthy lowlanders living below 800 m were studied at 760 m (Bishkek, Kyrgyzstan). Echocardiography, polysomnography and other outcomes were assessed. Thirty-six highlanders with elevated mean pulmonary artery pressure (mPAP) >30 mmHg (31-42 mmHg by echocardiography) were designated as HAPH+. Their data were compared to that of 54 healthy highlanders (HH, mPAP 13-28 mmHg) and 34 healthy lowlanders (LL, mPAP 8-24 mmHg).The HAPH+ group (median age 52 years (interquartile range 47-59) had a higher apnoea-hypopnoea index (AHI) of 33.8 events.h(-1) (26.9-54.6) and spent a greater percentage of the night-time with an oxygen saturation <90% (T<90; 78% (61-89)) than the HH group (median age 39 years (32-48), AHI 9.0 events.h(-1) (3.6-16), T<90 33% (10-69)) and the LL group (median age 40 years (30-47), AHI 4.3 events.h(-1) (1.4-12.6), T<90 0% (0-0)); p<0.007 for AHI and T<90, respectively, in HAPH+ versus others. In highlanders, multivariable regression analysis confirmed an independent association between mPAP and both AHI and T<90, when controlled for age, gender and body mass index.Pulmonary hypertension in highlanders is associated with sleep apnoea and hypoxaemia even when adjusted for age, gender and body mass index, suggesting pathophysiologic interactions between pulmonary haemodynamics and sleep apnoea. CI - Copyright (c)ERS 2017. FAU - Latshang, Tsogyal D AU - Latshang TD AD - Clinic of Pneumology and Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland. FAU - Furian, Michael AU - Furian M AD - Clinic of Pneumology and Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland. FAU - Aeschbacher, Sayaka S AU - Aeschbacher SS AD - Clinic of Pneumology and Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland. FAU - Ulrich, Silvia AU - Ulrich S AD - Clinic of Pneumology and Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland. FAU - Osmonov, Batyr AU - Osmonov B AD - Dept of Respiratory, Critical Care and Sleep Medicine, National Center for Cardiology and Internal Medicine, Bishkek, Kyrgyz Republic. FAU - Mirrakhimov, Erkin M AU - Mirrakhimov EM AD - Dept of Respiratory, Critical Care and Sleep Medicine, National Center for Cardiology and Internal Medicine, Bishkek, Kyrgyz Republic. AD - Kyrgyz State Medical Academy, Bishkek, Kyrgyz Republic. FAU - Isakova, Jainagul AU - Isakova J AD - Research Institute for Molecular Biology and Medicine, Bishkek, Kyrgyz Republic. FAU - Aldashev, Almaz A AU - Aldashev AA AD - Research Institute for Molecular Biology and Medicine, Bishkek, Kyrgyz Republic. FAU - Sooronbaev, Talant M AU - Sooronbaev TM AD - Dept of Respiratory, Critical Care and Sleep Medicine, National Center for Cardiology and Internal Medicine, Bishkek, Kyrgyz Republic. FAU - Bloch, Konrad E AU - Bloch KE AD - Clinic of Pneumology and Sleep Disorders Center, University Hospital Zurich, Zurich, Switzerland konrad.bloch@usz.ch. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20170202 PL - England TA - Eur Respir J JT - The European respiratory journal JID - 8803460 RN - Pulmonary edema of mountaineers SB - IM CIN - Eur Respir J. 2017 Feb 2;49(2):. PMID: 28153872 MH - Adult MH - Altitude MH - Altitude Sickness/*complications/*physiopathology MH - Blood Pressure MH - Case-Control Studies MH - Echocardiography, Doppler MH - Female MH - Humans MH - Hypertension, Pulmonary/*complications/*physiopathology MH - Hypoxia/physiopathology MH - Kyrgyzstan MH - Lung/physiopathology MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Polysomnography MH - Prospective Studies MH - Regression Analysis MH - Sleep Apnea Syndromes/*diagnosis/*physiopathology MH - Spirometry MH - Walk Test EDAT- 2016/12/23 06:00 MHDA- 2018/02/27 06:00 CRDT- 2016/12/24 06:00 PHST- 2016/07/31 00:00 [received] PHST- 2016/10/21 00:00 [accepted] PHST- 2016/12/23 06:00 [pubmed] PHST- 2018/02/27 06:00 [medline] PHST- 2016/12/24 06:00 [entrez] AID - 13993003.01530-2016 [pii] AID - 10.1183/13993003.01530-2016 [doi] PST - epublish SO - Eur Respir J. 2017 Feb 2;49(2):1601530. doi: 10.1183/13993003.01530-2016. Print 2017 Feb.