Effect of continuous positive airway pressure associated to exercise on the breathing pattern and heart rate variability of patients undergoing coronary artery bypass grafting surgery: a randomized controlled trial

Autor(es)

Pantoni, C. B. F. ^{[1, 2]} ; Di Thommazo-Luporini, L. ^[2] ; Mendes, R. G. ^[2] ; Caruso, F. C. R. ^[2] ; Castello-Simoes, V ^[2] ; Mezzalira, D. ^[2] ; Borghi-Silva, A. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Dept Gerontol, Sao Carlos, SP - Brazil

^[2] Univ Fed Sao Carlos, Dept Fisioterapia, Sao Carlos, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Medical and Biological Research; v. 54, n. 11 2021.
• Citações Web of Science: 0

Resumo

Continuous positive airway pressure (CPAP) has been used to improve gas exchange and diaphragmatic function, among others benefits. Moreover, it can be used to increase exercise tolerance and positively influence ventilatory function and breathing pattern (BP) during exercise. However, there is no information about the long-term effects of CPAP, as an adjunct to an inpatient cardiac rehabilitation (CR) program, on BP and heart rate variability (HRV) of patients after coronary artery bypass grafting surgery (CABG). Twenty patients were allocated to receive, after randomization, standard inpatient CR without CPAP (control group - CG) or CR with CPAP between 10 to 12 cmH2O (CPAP group - CPG) associated with the exercises. Participants were assessed preoperatively and on the discharge day, in the sitting rest position. Outcome measurements included BP variables, collected by respiratory inductive plethysmography, and HRV, collected by polar precision performance. The CPG presented lower values of percent rib cage inspiratory and expiratory contributions to tidal volume (%RCi and %RCe) at discharge time, compared to CG. No statistical differences between groups were observed for HRV variables and both groups presented lower values of these indices, compared to preoperative ones. In this context, the patients who received CPAP throughout the whole rehabilitation program were discharged with a better BP, which could indicate more synchronized breathing. CPAP did not influence cardiac autonomic modulation in the long term. (AU)

• Processo FAPESP: 15/12763-4 - A exacerbação da DPOC isolada e na coexistência da IC e o suporte ventilatório não invasivo: investigação do impacto sobre a função endotelial e autonômica cardíaca e análise da relação dos desfechos cardiovasculares com aspectos clincos e funcionais
• Beneficiário: Renata Gonçalves Mendes
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 05/59427-7 - Efeito da modulação autonômica cardíaca em pacientes submetidos à cirurgia de revascularização do miocárdio e programa de fisioterapia: fase I da reabilitação cardiovascular
• Beneficiário: Audrey Borghi Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/54194-5 - Impacto do exercício físico associado à aplicação de CPAP no pós-operatório de cirurgia de revascularização do miocárdio
• Beneficiário: Camila Bianca Falasco Pantoni
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 15/26501-1 - Estudo dos fatores limitantes ao exercício físico e efeitos dos recursos adjuntos à reabilitação nas doenças cardiorrespiratórias crônicas: uma abordagem multicêntrica
• Beneficiário: Audrey Borghi Silva
• Modalidade de apoio: Auxílio à Pesquisa - Temático