E D Kennedy1, D M Rothwell, Z Cohen, R S McLeod. 1. Department of Surgery and the Mount Sinai Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.
Abstract
PURPOSE: This study was designed to determine whether changes in length of stay and 30-day readmission, reoperation, and excision rates for the ileal pouch-anal anastomosis occurred over time and with changes in surgical technique and hospital volume. METHODS: Using three population-based administrative databases, data on all ileal pouch-anal anastomoses performed in the province of Ontario between January 1992 and June 1998 were obtained. The effect of age, gender, stage of the procedure, year of surgery, and hospital volume were examined for their effect on length of stay and readmission, reoperation, and excision rates. RESULTS: There were 1,285 ileal pouch-anal anastomoses performed in 58 hospitals. There was a significant decrease in length of stay and reoperation and excision rates but a concommitant increase in readmission rate during the study period. Patients younger than aged 40 years had a significantly lower length of stay and excision rate. Patients who had a two-stage procedure had a shorter length of stay, readmission, and reoperative rate compared with those having a three-stage procedure. Hospital volume was a significant predictor of need for reoperation and excision with both low-volume and medium-volume hospitals having significantly higher rates than high-volume hospitals. CONCLUSIONS: Outcome after ileal pouch-anal anastomosis has improved. It is significantly better in patients younger than aged 40 years, having a two-stage procedure, and where surgery is performed at high-volume hospitals. It is likely that both modifications in surgical technique and surgical experience have led to improvements in clinical outcome after ileal pouch-anal anastomosis.
PURPOSE: This study was designed to determine whether changes in length of stay and 30-day readmission, reoperation, and excision rates for the ileal pouch-anal anastomosis occurred over time and with changes in surgical technique and hospital volume. METHODS: Using three population-based administrative databases, data on all ileal pouch-anal anastomoses performed in the province of Ontario between January 1992 and June 1998 were obtained. The effect of age, gender, stage of the procedure, year of surgery, and hospital volume were examined for their effect on length of stay and readmission, reoperation, and excision rates. RESULTS: There were 1,285 ileal pouch-anal anastomoses performed in 58 hospitals. There was a significant decrease in length of stay and reoperation and excision rates but a concommitant increase in readmission rate during the study period. Patients younger than aged 40 years had a significantly lower length of stay and excision rate. Patients who had a two-stage procedure had a shorter length of stay, readmission, and reoperative rate compared with those having a three-stage procedure. Hospital volume was a significant predictor of need for reoperation and excision with both low-volume and medium-volume hospitals having significantly higher rates than high-volume hospitals. CONCLUSIONS: Outcome after ileal pouch-anal anastomosis has improved. It is significantly better in patients younger than aged 40 years, having a two-stage procedure, and where surgery is performed at high-volume hospitals. It is likely that both modifications in surgical technique and surgical experience have led to improvements in clinical outcome after ileal pouch-anal anastomosis.
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