Slow deep breathing improves blood oxygenation (SpO2) and affects hemodynamics in hypoxic patients. We investigated the ventilatory and hemodynamic effects of slow deep breathing in normal subjects at high altitude. We collected data in healthy lowlanders staying either at 4559 m for 2–3 days (Study A; N = 39) or at 5400 m for 12–16 days (Study B; N = 28). Study variables, including SpO2 and systemic and pulmonary arterial pressure, were assessed before, during and after 15 minutes of breathing at 6 breaths/min. At the end of slow breathing, an increase in SpO2 (Study A: from 80.267.7% to 89.568.2%; Study B: from 81.064.2% to 88.664.5; both p,0.001) and significant reductions in systemic and pulmonary arterial pressure occurred. This was associated with increased tidal volume and no changes in minute ventilation or pulmonary CO diffusion. Slow deep breathing improves ventilation efficiency for oxygen as shown by blood oxygenation increase, and it reduces systemic and pulmonary blood pressure at high altitude but does not change pulmonary gas diffusion.

Bilo, G., Revera, M., Bussotti, M., Bonacina, D., Styczkiewicz, K., Caldara, G., et al. (2012). Effects of slow deep breathing at high altitude on oxygensaturation, pulmonary and sistemi hemodynamics. PLOS ONE, 7(11), e49074 [10.1371/journal.pone.0049074].

Effects of slow deep breathing at high altitude on oxygensaturation, pulmonary and sistemi hemodynamics.

BILO, GRZEGORZ;REVERA, MIRIAM;BUSSOTTI, MAURIZIO;BONACINA, DANIELE;CALDARA, GIANLUCA;GIGLIO, ALESSIA MAFALDA;FAINI, ANDREA;GIULIANO, ANDREA;LOMBARDI, CAROLINA;MANCIA, GIUSEPPE;PARATI, GIANFRANCO
2012

Abstract

Slow deep breathing improves blood oxygenation (SpO2) and affects hemodynamics in hypoxic patients. We investigated the ventilatory and hemodynamic effects of slow deep breathing in normal subjects at high altitude. We collected data in healthy lowlanders staying either at 4559 m for 2–3 days (Study A; N = 39) or at 5400 m for 12–16 days (Study B; N = 28). Study variables, including SpO2 and systemic and pulmonary arterial pressure, were assessed before, during and after 15 minutes of breathing at 6 breaths/min. At the end of slow breathing, an increase in SpO2 (Study A: from 80.267.7% to 89.568.2%; Study B: from 81.064.2% to 88.664.5; both p,0.001) and significant reductions in systemic and pulmonary arterial pressure occurred. This was associated with increased tidal volume and no changes in minute ventilation or pulmonary CO diffusion. Slow deep breathing improves ventilation efficiency for oxygen as shown by blood oxygenation increase, and it reduces systemic and pulmonary blood pressure at high altitude but does not change pulmonary gas diffusion.
No
Articolo in rivista - Articolo scientifico
Scientifica
Slow deep breathing, blood oxygenation,hemodynamics,hypoxic patients
English
e49074
Bilo, G., Revera, M., Bussotti, M., Bonacina, D., Styczkiewicz, K., Caldara, G., et al. (2012). Effects of slow deep breathing at high altitude on oxygensaturation, pulmonary and sistemi hemodynamics. PLOS ONE, 7(11), e49074 [10.1371/journal.pone.0049074].
Bilo, G; Revera, M; Bussotti, M; Bonacina, D; Styczkiewicz, K; Caldara, G; Giglio, A; Faini, A; Giuliano, A; Lombardi, C; Kawecka Jaszcz, K; Mancia, G; Agostoni, P; Parati, G
File in questo prodotto:
File Dimensione Formato  
Effects of slow-PLOS One-e-pub 2012.pdf

accesso aperto

Dimensione 184.56 kB
Formato Adobe PDF
184.56 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/39301
Citazioni
  • Scopus 33
  • ???jsp.display-item.citation.isi??? 33
Social impact