Relação do teste de caminhada pós-operatório e função pulmonar com o tempo de internação da cirurgia cardíaca

Abstract

Relação do teste de caminhada pós-operatório e função pulmonar com o tempo de internação da cirurgia cardíacaRelationship of postoperative walk test and lung function with the length of heart surgery hospital stay Abstract Objective: The lung function is identified as a predictor of time of hospital stay in heart surgery. Meanwhile six-minute walk test has been used to establish functional capacity of cardiac patients, however there are few studies that correlate it with the length of hospital stay. The aim of this study was to determine whether there is correlation of preoperative and postoperative lung function and the postoperative deambulation ability with postoperative hospital stay.Methods: A prospective cohort with 18 patients was performed, being 8 males and 10 females, with age above 40 years (mean 64.89 ± 6.95 years). Patients where admitted for coronary artery bypass graft surgery and/or valve replacement. To characterize the pulmonary function, patients had undergone spirometry in preoperative and at 5th postoperative day. In the latter period was also performed a test for 6 minutes walk (6MWT) to characterize the deambulation ability.Results: There was not significant correlation of preoperative and postoperative lung function with length of postoperative hospital stay. Only the distance covered in 6MWT showed a significant negative correlation (rho=-0.62) with length postoperative hospital of stay. The distance in 6MWT obtained a significant positive correlation with forced vital capacity (r=0.59) and first second of a maximal forced expiratory maneuver (r=0.52). Conclusion:These results suggest that patients with increased postoperative deambulation capacity have a shorter time of hospital stay and it also suggests that the distance in the 6MWT can better represent the functional capacity of these patients than lung function alone. Descriptors: Respiratory function tests. Early ambulation. Length of stay. Cardiovascular surgical procedures.Resumo Objetivo: A função pulmonar é apontada como preditora do tempo de hospitalização na cirurgia cardíaca. E o teste de caminhada de seis minutos (TC6') tem sido utilizado para caracterizar a capacidade funcional em pacientes cardiopatas, porém há poucos estudos que o correlacione com tempo de internação hospitalar. O objetivo desta pesquisa foi verificar se há correlação da função pulmonar pré e pós-operatória e da capacidade da deambulação pós-operatória com tempo de internação pós-operatória.Métodos: Foi realizada uma coorte prospectiva com 18 pacientes, sendo 8 do gênero masculino e 10 do gênero feminino, com idade acima de 40 anos (média 64,89 ± 6,95 anos), internados para a submissão de cirurgias de revascularização do miocárdio e/ou troca valvar. Para caracterizar a função pulmonar, os pacientes foram submetidos a uma espirometria no pré-operatório e ao 5°C orrespondence address: Vinicius Zacarias Maldaner da Silva

Associação entre a distância percorrida no teste de caminhada de seis minutos e o tempo de internação hospitalar

“…Our results point to a significant association, but it should be emphasized that the participants present a great variety of pathologies and causes of hospitalization, which makes the sample heterogeneous, differing from other studies that performed similar research in specific populations 19 . Hospital admission can lead to physical deconditioning and also immobilism.…”

A review of cardiopulmonary research in Brazilian medical journals: clinical, surgical and epidemiological data

“…The circulatory response to a 50-meter walk in acute coronary syndrome was presented by Dias et al3 Furtado et al reported on blood pressure measurements during aerobic exercise in cardiac rehabilitation,4 whereas Oliveira et al reported on the effect of the walk test on the length of hospital stay for cardiac surgery patients 5. The relationships between fitness, waist circumference and hypertension in elderly Brazilian women were investigated by Krause et al6 Pelegrino et al studied the influence of lean body mass on cardiopulmonary repercussions during the six-minute walk test in patients with chronic obstructive pulmonary disease (COPD) 7…”

“…Ziegler et al looked at predictors of oxygen desaturation during the six-minute walk test in patients with cystic fibrosis 45. Oliveira et al reviewed the relationships between the walk test, pulmonary function tests and length of hospitalization in cardiac surgery patients 5. Bertolace et al studied the association between obesity and asthma among teenagers 46.…”

Time influence of mechanical ventilation on functional independence in patients submitted to cardiac surgery: literature review

“…These factors contribute to the emergence of postoperative respiratory complications such as pneumonia, pleural effusion and atelectasis. The effects of these complications in lung function may increase morbidity and mortality (2,3).…”