BACKGROUND Approximately 20 percent of patients with a tumour localized in the low rectum still encounter the possibility of requiring permanent stoma(PS), which can cause drastic changes in lifestyle and physical per...BACKGROUND Approximately 20 percent of patients with a tumour localized in the low rectum still encounter the possibility of requiring permanent stoma(PS), which can cause drastic changes in lifestyle and physical perceptions.AIM To determine the risk factors for PS and to develop a prediction model to predict the probability of PS in rectal cancer patients after sphincter-saving surgery.METHODS A retrospective cohort of 421 rectal cancer patients who underwent radical surgery at Taipei Medical University Hospital between January 2012 and December 2020 was included in this study. Univariate and multivariate analyses were performed to identify the independent risk factors for PS. A nomogram was developed according to the independent risk factors obtained in the multivariate analysis. The performance of the nomogram was assessed using a receiver operating characteristic curve and a calibration curve.RESULTS The PS rate after sphincter-saving surgery was 15.1%(59/391) in our study after a median follow-up of 47.3 mo(range 7–114 mo). Multivariate logistic regression analysis demonstrated that local recurrence, perirectal abscess, anastomosis site stenosis, perineural invasion, tumor size and operative time were independent risk factors for PS. These identified risk factors were incorporated into the nomogram, and the concordance index of this model was 0.903(95%CI: 0.851-0.955). According to the calibration curves, the nomogram represents a perfect prediction model.CONCLUSION Several risk factors for PS after sphincter-saving surgery were identified. Our nomogram exhibited perfect predictive ability and will improve a physician’s ability to communicate the benefits and risks of various treatment options in shared decision making.展开更多
AIM: To investigate the risk factors causing structural sequelae after anastomotic leakage in patients with mid to low rectal cancer.METHODS: Prospectively collected data of consecutive subjects who had anastomotic le...AIM: To investigate the risk factors causing structural sequelae after anastomotic leakage in patients with mid to low rectal cancer.METHODS: Prospectively collected data of consecutive subjects who had anastomotic leakage after surgical resection for rectal cancer from March 2006 to May 2013 at Korea University Anam Hospital were retrospectively analyzed. Two subgroup analyses were performed. The patients were initially divided into the sequelae(stricture, fistula, or sinus) and no sequelae groups and then divided into the permanent stoma(PS)and no PS groups. Univariate and multivariate analyses were performed to identify the risk factors of structural sequelae after anastomotic leakage.RESULTS: Structural sequelae after anastomotic leakage were identified in 29 patients(39.7%).Multivariate analysis revealed that diversion ileostomy at the first operation increases the risk of structural sequelae [odds ratio(OR) = 6.741; P = 0.017].Fourteen patients(17.7%) had permanent stoma during the follow-up period(median, 37 mo). Multivariate analysis showed that the tumor level from the dentate line was associated with the risk of permanent stoma(OR = 0.751; P = 0.045).CONCLUSION: Diversion ileostomy at the first operation increased the risk of structural sequelae of the anastomosis, while lower tumor location was associated with the risk of permanent stoma in the management of anastomotic leakage.展开更多
基金Supported by the Taipei Medical University,No. TMU104-AE1-B35。
文摘BACKGROUND Approximately 20 percent of patients with a tumour localized in the low rectum still encounter the possibility of requiring permanent stoma(PS), which can cause drastic changes in lifestyle and physical perceptions.AIM To determine the risk factors for PS and to develop a prediction model to predict the probability of PS in rectal cancer patients after sphincter-saving surgery.METHODS A retrospective cohort of 421 rectal cancer patients who underwent radical surgery at Taipei Medical University Hospital between January 2012 and December 2020 was included in this study. Univariate and multivariate analyses were performed to identify the independent risk factors for PS. A nomogram was developed according to the independent risk factors obtained in the multivariate analysis. The performance of the nomogram was assessed using a receiver operating characteristic curve and a calibration curve.RESULTS The PS rate after sphincter-saving surgery was 15.1%(59/391) in our study after a median follow-up of 47.3 mo(range 7–114 mo). Multivariate logistic regression analysis demonstrated that local recurrence, perirectal abscess, anastomosis site stenosis, perineural invasion, tumor size and operative time were independent risk factors for PS. These identified risk factors were incorporated into the nomogram, and the concordance index of this model was 0.903(95%CI: 0.851-0.955). According to the calibration curves, the nomogram represents a perfect prediction model.CONCLUSION Several risk factors for PS after sphincter-saving surgery were identified. Our nomogram exhibited perfect predictive ability and will improve a physician’s ability to communicate the benefits and risks of various treatment options in shared decision making.
文摘AIM: To investigate the risk factors causing structural sequelae after anastomotic leakage in patients with mid to low rectal cancer.METHODS: Prospectively collected data of consecutive subjects who had anastomotic leakage after surgical resection for rectal cancer from March 2006 to May 2013 at Korea University Anam Hospital were retrospectively analyzed. Two subgroup analyses were performed. The patients were initially divided into the sequelae(stricture, fistula, or sinus) and no sequelae groups and then divided into the permanent stoma(PS)and no PS groups. Univariate and multivariate analyses were performed to identify the risk factors of structural sequelae after anastomotic leakage.RESULTS: Structural sequelae after anastomotic leakage were identified in 29 patients(39.7%).Multivariate analysis revealed that diversion ileostomy at the first operation increases the risk of structural sequelae [odds ratio(OR) = 6.741; P = 0.017].Fourteen patients(17.7%) had permanent stoma during the follow-up period(median, 37 mo). Multivariate analysis showed that the tumor level from the dentate line was associated with the risk of permanent stoma(OR = 0.751; P = 0.045).CONCLUSION: Diversion ileostomy at the first operation increased the risk of structural sequelae of the anastomosis, while lower tumor location was associated with the risk of permanent stoma in the management of anastomotic leakage.
