Mostrando 1 - 20 Resultados de 32 Para Buscar '"altitud"', tiempo de consulta: 0.16s Limitar resultados
  1. 1
    “…BACKGROUND/AIMS: Amongst numerous travellers to high altitude (HA) are many with the highly prevalent COPD, who are at particular risk for altitude-related adverse health effects (ARAHE). …”
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    Hypoxia-altitude simulation test to predict altitude-related adverse health effects in COPD patients
  2. 2
    “…MATERIALS AND METHODS: Continuous morning beat-to-beat BP was noninvasively measured with a Finometer(®) device for 10 minutes at low altitude (490 m, Zurich, Switzerland) and for 2 days at moderate altitude (2,590 m, Davos Jakobshorn, Switzerland) – the order of altitude exposure was randomized. …”
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    Blood pressure response to exposure to moderate altitude in patients with COPD
  3. 3
    “…In addition, hypobaric hypoxia may impair postural control, psycho-motor, and cognitive performance in patients with COPD during altitude sojourns. Randomized, placebo-controlled trials have shown that preventive treatment with oxygen at night or with acetazolamide reduces the risk of ARAHE in patients with COPD while preventive dexamethasone treatment improves oxygenation and altitude-induced excessive sleep apnea, and lowers systemic and pulmonary artery pressure. …”
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    Counseling Patients with Chronic Obstructive Pulmonary Disease Traveling to High Altitude
  4. 4
    “…Objective: Neurocognitive functions are affected by high altitude, however the altitude effects of acclimatization and repeated exposures are unclear. …”
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    Effects on Cognitive Functioning of Acute, Subacute and Repeated Exposures to High Altitude
  5. 5
    “…We hypothesized that prolonged and repeated high-altitude exposure will improve altitude-induced deoxygenation and breathing instability. …”
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    Acute high altitude exposure, acclimatization and re-exposure on nocturnal breathing
  6. 6
    “…OBJECTIVE: To evaluate the effects of altitude travel on exercise performance and symptoms in lowlanders with COPD. …”
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    Exercise performance and symptoms in lowlanders with COPD ascending to moderate altitude: randomized trial
  7. 7
    “…BACKGROUND: To investigate the effect of asthma rehabilitation at high altitude (3100 m, HA) compared to low altitude (760 m, LA). …”
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    Asthma rehabilitation at high vs. low altitude: randomized parallel-group trial
  8. 8
    “…Aim: High altitude (HA) hypoxia may affect cognitive performance and sleep quality. …”
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    Effect of Acute, Subacute, and Repeated Exposure to High Altitude (5050 m) on Psychomotor Vigilance
  9. 9
    “…Importance: To date, there is no established evidence of sex-specific differences in altitude-induced sleep-disordered breathing (SDB) during polysomnography-confirmed sleep. …”
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    Sex-Specific Difference in the Effect of Altitude on Sleep and Nocturnal Breathing in Young Healthy Volunteers
  10. 10
    “…Introduction: Stable patients with pulmonary arterial or chronic thromboembolic pulmonary hypertension (PH) wish to undergo altitude sojourns or air travel but fear disease worsening. …”
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    Altitude Travel in Patients With Pulmonary Hypertension: Randomized Pilot-Trial Evaluating Nocturnal Oxygen Therapy
  11. 11
    “…METHODS: In healthy individuals and patients with chronic obstructive pulmonary disease participating in clinical field studies at different altitudes, arterial blood samples were obtained at rest and during exercise in a hospital at 760 m and in a high altitude clinic at 3100 m. …”
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    Validation of a Portable Blood Gas Analyzer for Use in Challenging Field Conditions at High Altitude
  12. 12
    “…Prediction of adverse health effects at altitude or during air travel is relevant, particularly in pre-existing cardiopulmonary disease such as pulmonary arterial or chronic thromboembolic pulmonary hypertension (PAH/CTEPH, PH). …”
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    Cardiorespiratory Adaptation to Short-Term Exposure to Altitude vs. Normobaric Hypoxia in Patients with Pulmonary Hypertension
  13. 13
    “…IMPORTANCE: With increasing altitude, the partial pressure of inspired oxygen decreases and, consequently, the Pao(2) decreases. …”
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    Partial Pressure of Arterial Oxygen in Healthy Adults at High Altitudes: A Systematic Review and Meta-Analysis
  14. 14
    “…Maximal values of aerobic power (VO(2)max) and peripheral oxygen saturation (SpO(2)max) decline in parallel with gain in altitude. Whereas this relationship has been well investigated when acutely exposed to high altitude, potential benefits of acclimatization on SpO(2) and related VO(2)max in healthy and diseased individuals have been much less considered. …”
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    Effects of Acute Exposure and Acclimatization to High-Altitude on Oxygen Saturation and Related Cardiorespiratory Fitness in Health and Disease
  15. 15
    “…OBJECTIVE: Altitude travel is increasingly popular also for middle-aged and older tourists and professionals. …”
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    Effect of acetazolamide on visuomotor performance at high altitude in healthy people 40 years of age or older—RCT
  16. 16
    “…For safety, patients with sustained hypoxaemia at altitude (peripheral oxygen saturation <80% for >30 min or <75% for >15 min) received oxygen therapy. …”
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    Effect of a day-trip to altitude (2500 m) on exercise performance in pulmonary hypertension: randomised crossover trial
  17. 17
    “…BACKGROUND: COPD may predispose to symptomatic pulmonary hypertension at high altitude. We investigated haemodynamic changes in lowlanders with COPD ascending to 3100 m and evaluated whether preventive acetazolamide treatment would attenuate the altitude-induced increase in pulmonary artery pressure (PAP). …”
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    Effect of acetazolamide on pulmonary vascular haemodynamics in patients with COPD going to altitude: a randomised, placebo-controlled, double-blind trial
  18. 18
    “…Concurrent measurements of cPaO(2) (AGM100) and mPaO(2) (EPOC, portable aBGA device) were performed in 131 moderate-to-severe COPD patients (mean ±SD FEV(1): 60 ± 10% of predicted value) and low-altitude residents, becoming hypoxemic (i.e., SpO(2) < 94%) during a short stay at 3100 m (Too-Ashu, Kyrgyzstan). …”
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    Validation of Noninvasive Assessment of Pulmonary Gas Exchange in Patients with Chronic Obstructive Pulmonary Disease during Initial Exposure to High Altitude
  19. 19
    “…INTRODUCTION: We investigated whether nocturnal oxygen therapy (NOT) mitigates the increase of pulmonary artery pressure in patients during daytime with chronic obstructive pulmonary disease (COPD) traveling to altitude. METHODS: Patients with COPD living below 800 m underwent examinations at 490 m and during two sojourns at 2,048 m (with a washout period of 2 weeks < 800 m between altitude sojourns). …”
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    Effect of Nocturnal Oxygen Therapy on Daytime Pulmonary Hemodynamics in Patients With Chronic Obstructive Pulmonary Disease Traveling to Altitude: A Randomized Controlled Trial
  20. 20
    “…Hypoxemia is marked during sleep. In COPD, altitude exposure is associated with an increase in blood pressure (BP) and a decrease in baroreflex-sensitivity (BRS). …”
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    Effect of Nocturnal Oxygen on Blood Pressure Response to Altitude Exposure in COPD – Data from a Randomized Placebo-Controlled Cross-Over Trial
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