| pubmed-article:18953057 | pubmed:abstractText | Morbidity and mortality are higher in patients with poor preoperative cardiorespiratory reserve. This study aimed to ascertain fitness and therefore risk in elective patients, comparing three measures: Duke Activity Status Index (DASI) questionnaire, incremental shuttle walk test (ISWT), and cycle cardiopulmonary exercise testing (CPET). We looked for correlation between the measures and for thresholds on the questionnaire or shuttle test which could identify fit patients and render CPET unnecessary. | lld:pubmed |
