TY - JOUR
T1 - Continuous positive airway pressure increases haemoglobin O2 saturation after acute but not prolonged altitude exposure
AU - Agostoni, Piergiuseppe
AU - Caldara, Gianluca
AU - Bussotti, Maurizio
AU - Revera, Miriam
AU - Valentini, Mariaconsuelo
AU - Gregorini, Francesca
AU - Faini, Andrea
AU - Lombardi, Carolina
AU - Bilo, Gregorz
AU - Giuliano, Andrea
AU - Veglia, Fabrizio
AU - Savia, Giulio
AU - Modesti, Pietro A.
AU - Mancia, Giuseppe
AU - Parati, Gianfranco
PY - 2010/2
Y1 - 2010/2
N2 - AimsIt is unknown whether subclinical high-altitude pulmonary oedema reduces spontaneously after prolonged altitude exposure. Continuous positive airway pressure (CPAP) removes extravascular lung fluids and improves haemoglobin oxygen saturation in acute cardiogenic oedema. We evaluated the presence of pulmonary extravascular fluid increase by assessing CPAP effects on haemoglobin oxygen saturation under acute and prolonged altitude exposure.Methods and resultsWe applied 7 cm H2O CPAP for 30 min to healthy individuals after acute (Capanna Margherita, CM, 4559 m, 2 days permanence, and 2-sat increase suggesting a reduction in alveolar fluids.
AB - AimsIt is unknown whether subclinical high-altitude pulmonary oedema reduces spontaneously after prolonged altitude exposure. Continuous positive airway pressure (CPAP) removes extravascular lung fluids and improves haemoglobin oxygen saturation in acute cardiogenic oedema. We evaluated the presence of pulmonary extravascular fluid increase by assessing CPAP effects on haemoglobin oxygen saturation under acute and prolonged altitude exposure.Methods and resultsWe applied 7 cm H2O CPAP for 30 min to healthy individuals after acute (Capanna Margherita, CM, 4559 m, 2 days permanence, and 2-sat increase suggesting a reduction in alveolar fluids.
KW - Arterial blood oxygen saturation
KW - High altitude pulmonary oedema
KW - Hypobaric hypoxia at altitude
KW - Positive pressure ventilation
UR - http://www.scopus.com/inward/record.url?scp=77249151433&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77249151433&partnerID=8YFLogxK
U2 - 10.1093/eurheartj/ehp472
DO - 10.1093/eurheartj/ehp472
M3 - Article
C2 - 19903683
AN - SCOPUS:77249151433
VL - 31
SP - 457
EP - 463
JO - European Heart Journal
JF - European Heart Journal
SN - 0195-668X
IS - 4
ER -