Charbel El-Kefraoui1,2, Fateme Rajabiyazdi1,2, Nicolò Pecorelli3, Franco Carli4, Lawrence Lee1,2,5,6, Liane S Feldman1,2,5,6, Julio F Fiore7,8,9,10. 1. Division of Experimental Surgery, McGill University, Montreal, QC, Canada. 2. Steinberg-Bernstein Centre for Minimally Invasive Surgery and Innovation, McGill University Health Centre, Montreal, QC, Canada. 3. Pancreas Translational & Clinical Research Center, San Raffaele Hospital, Milan, Italy. 4. Department of Anesthesia, McGill University, Montreal, QC, Canada. 5. Department of Surgery, McGill University, Montreal, QC, Canada. 6. Centre for Outcomes Research and Evaluation (CORE), Research Institute of the McGill University Health Centre, Montreal, QC, Canada. 7. Division of Experimental Surgery, McGill University, Montreal, QC, Canada. julio.fiorejunior@mcgill.ca. 8. Steinberg-Bernstein Centre for Minimally Invasive Surgery and Innovation, McGill University Health Centre, Montreal, QC, Canada. julio.fiorejunior@mcgill.ca. 9. Department of Surgery, McGill University, Montreal, QC, Canada. julio.fiorejunior@mcgill.ca. 10. Centre for Outcomes Research and Evaluation (CORE), Research Institute of the McGill University Health Centre, Montreal, QC, Canada. julio.fiorejunior@mcgill.ca.
Abstract
BACKGROUND: Complications are common after colorectal surgery and remain a target for quality improvement. Lower preoperative physical functioning is associated with poor postoperative outcomes, but assessment often relies on subjective judgment or resource-intensive tests. Recent literature suggests that self-reported functional capacity, measured using the Duke Activity Status Index (DASI), is a strong predictor of postoperative outcomes. This study aimed to estimate the extent to which DASI predicts 30-day complications after colorectal surgery. METHODS: In this observational study, 100 patients undergoing colorectal resection [median age 63, 57% men, 81% laparoscopic, 37% rectal surgery] responded to DASI two weeks preoperatively. Complications were classified according to Clavien-Dindo and quantified using the comprehensive complication index (CCI). Our primary analysis targeted the relationship between preoperative DASI and odds of complications. Secondary analyses focused on 30-day severe complications, CCI, readmissions, and length of stay (LOS). We also explored the predictive ability of DASI with scores dichotomized based on a previously validated threshold (≤ 34). RESULTS: Mean preoperative DASI was 48 ± 12. Forty-six patients (46%) experienced 30-day complications (8% severe, CCI 9.6 ± 15). Lower DASI scores were associated with higher odds of complications (OR 1.08, 95%CI 1.03-1.14; p = 0.001). Preoperative DASI was also an independent predictor of severe complications, CCI, and readmissions. The predictive ability was supported when scores were dichotomized at ≤ 34. CONCLUSION: DASI is a significant predictor of postoperative complications after colorectal surgery. This questionnaire can be easily implemented in clinical practice to identify patients with low preoperative functional capacity and target interventions to those at higher risk.
BACKGROUND: Complications are common after colorectal surgery and remain a target for quality improvement. Lower preoperative physical functioning is associated with poor postoperative outcomes, but assessment often relies on subjective judgment or resource-intensive tests. Recent literature suggests that self-reported functional capacity, measured using the Duke Activity Status Index (DASI), is a strong predictor of postoperative outcomes. This study aimed to estimate the extent to which DASI predicts 30-day complications after colorectal surgery. METHODS: In this observational study, 100 patients undergoing colorectal resection [median age 63, 57% men, 81% laparoscopic, 37% rectal surgery] responded to DASI two weeks preoperatively. Complications were classified according to Clavien-Dindo and quantified using the comprehensive complication index (CCI). Our primary analysis targeted the relationship between preoperative DASI and odds of complications. Secondary analyses focused on 30-day severe complications, CCI, readmissions, and length of stay (LOS). We also explored the predictive ability of DASI with scores dichotomized based on a previously validated threshold (≤ 34). RESULTS: Mean preoperative DASI was 48 ± 12. Forty-six patients (46%) experienced 30-day complications (8% severe, CCI 9.6 ± 15). Lower DASI scores were associated with higher odds of complications (OR 1.08, 95%CI 1.03-1.14; p = 0.001). Preoperative DASI was also an independent predictor of severe complications, CCI, and readmissions. The predictive ability was supported when scores were dichotomized at ≤ 34. CONCLUSION: DASI is a significant predictor of postoperative complications after colorectal surgery. This questionnaire can be easily implemented in clinical practice to identify patients with low preoperative functional capacity and target interventions to those at higher risk.
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