The online version of this article (doi:10.1186/1749-8090-9-95) contains supplementary material, which is available to authorized users.
The authors declare that they have no competing interests.
GUO, VOC, LPAC, AAAF, MLCN, WMSJ, TCFC and VJSF conceived and planned the activities that led to the study. GUO and LPAC performed assessments. GUO assessed the data. GUO, VOC, MLCN, WMSJ and VJSF prepared the manuscript. All authors read and approved the final manuscript.
The aim of this study was to identify the determinants of distance walked in six-minute walk test (6MWD) in patients undergoing cardiac surgery at hospital discharge.
The assessment was performed preoperatively and at discharge. Data from patient records were collected and measurement of the Functional Independence Measure (FIM) and the Nottingham Health Profile (NHP) were performed. The six-minute walk test (6MWT) was performed at discharge. Patients undergoing elective cardiac surgery, coronary artery bypass grafting or valve replacement were eligible. Patients older than 75 years who presented arrhythmia during the protocol, with psychiatric disorders, muscular or neurological disorders were excluded from the study.
Sixty patients (44.26% male, mean age 51.53 ± 13 years) were assessed. In multivariate analysis the following variables were selected: type of surgery (P = 0.001), duration of cardiopulmonary bypass (CPB) (P = 0.001), Functional Independence Measure - FIM (0.004) and body mass index - BMI (0.007) with r = 0.91 and r2 = 0.83 with P < 0.001. The equation derived from multivariate analysis: 6MWD = Surgery (89.42) + CPB (1.60) + MIF (2.79 ) - BMI (7.53) - 127.90.
In this study, the determinants of 6MWD in patients undergoing cardiac surgery were: the type of surgery, CPB time, functional capacity and body mass index.
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- Determinants of distance walked during the six-minute walk test in patients undergoing cardiac surgery at hospital discharge
Géssica Uruga Oliveira
Vitor Oliveira Carvalho
Lucas Pereira de Assis Cacau
Amaro Afrânio de Araújo Filho
Manoel Luiz de Cerqueira Neto
Walderi Monteiro da Silva Junior
Telma Cristina Fontes Cerqueira
Valter Joviniano de Santana Filho
- BioMed Central
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