Risk factors for severe morbidity and definitive stoma after elective surgery for sigmoid diverticulitis: a multicenter national cohort study.

BACKGROUND: In the decision to perform elective surgery, it is of great interest to have data about the outcomes of surgery to individualize patients who could safely undergo sigmoid resection. The aim of this study was to provide information on the outcomes of elective sigmoid resection for sigmoid diverticular disease (SDD) at a national level. METHODS: All consecutive patients who had elective surgery for SDD (2010-2021) were included in this retrospective, multicenter, cohort study. Patients were identified from institutional review board-approved databases in French member centers of the French Surgical Association. The endpoints of the study were the early and the long-term postoperative outcomes and an evaluation of the risk factors for 90-day severe postoperative morbidity and a definitive stoma after an elective sigmoidectomy for SDD. RESULTS: In total, 4617 patients were included. The median [IQR] age was 61 [18.0;100] years, the mean ± SD body mass index (BMI) was 26.8 ± 4 kg/m2, and 2310 (50%) were men. The indications for surgery were complicated diverticulitis in 50% and smoldering diverticulitis in 47.4%. The procedures were performed laparoscopically for 88% and with an anastomosis for 83.8%. The severe complication rate on postoperative day 90 was 11.7%, with a risk of anastomotic leakage of 4.7%. The independent risk factors in multivariate analysis were an American Society of Anesthesiologists (ASA) score ≥ 3, an open approach, and perioperative blood transfusion. Age, perioperative blood transfusion, and Hartmann's procedure were the three independent risk factors for a permanent stoma. CONCLUSIONS: This series provides a real-life picture of elective sigmoidectomy for SDD at a national level. TRIAL REGISTRATION: Comité National Information et Liberté (CNIL) (n°920361).

Hospital stay for temporary stoma closure is shortened by C-reactive protein monitoring: a prospective case-matched study.

BACKGROUND: C-reactive protein (CRP) has been suggested as a satisfactory early marker of postoperative complications after colorectal surgery. The aim of this study was to assess the impact of a CRP monitoring-driven discharge strategy, after stoma reversal following laparoscopic sphincter-saving surgery for rectal cancer. METHODS: Eighty-eight patients who had stoma reversal between June 2016 and April 2018 had CRP serum level monitoring on postoperative day (POD) 3 and, if necessary, on POD5. Patients were discharged on POD4 if the CRP level was < 100 mg/L. Patients were matched [according to age, gender, body mass index, neoadjuvant pelvic irradiation, type of anastomosis (stapled or manual), and adjuvant chemotherapy] to 109 identical control patients who had stoma reversal between 2012 and 2016 with the same postoperative care but without CRP monitoring. RESULTS: Postoperative 30-day overall morbidity [CRP group: 12/88 (14%) vs controls: 11/109, (10%), p = 0.441] and severe morbidity rates (i.e. Dindo 3-4) [CRP group: 2/88 (2%) vs controls: 2/109 (2%), p = 0.838] were similar between groups. Mean length of stay was significantly shorter in the CRP group (CRP group: 4.6 ± 1.3 vs controls: 5.8 ± 1.8 days; p < 0.001). Discharge occurred before POD5 in 59/88 (67%) CRP patients vs 15/109 (14%) controls (p < 0.001). The unplanned rehospitalization rate [CRP group: 6/88 (7%) vs controls: 4/109 (4%), p = 0.347] was similar between groups. CONCLUSIONS: In patients having temporary stoma closure after laparoscopic surgery for rectal cancer, postoperative CRP monitoring is associated with a significant shortening of hospital stay without increasing morbidity or rehospitalization rates.

Small bowel adenocarcinoma phenotyping, a clinicobiological prognostic study.

BACKGROUND: Small bowel adenocarcinoma (SBA) is a rare tumour with a poor prognosis. Molecular biology data on SBA carcinogenesis are lacking. METHODS: Expression of HER2, ß-catenin, p53 and mismatch repair (MMR) protein was assessed by immunohistochemistry. KRAS, V600E BRAF mutations and microsatellite instability were investigated. RESULTS: We obtained samples from 63 SBA patients (tumour stages: I-II: 30%; III: 35%; IV: 32%; locally advanced: 3%). HER2 overexpression (3+) was observed in 2 out of 62 patients, overexpression of p53 in 26 out of 62, abnormal expression of ß-catenin in 12 out of 61, KRAS mutation in 21 out of 49, BRAF V600E mutation in 1 out of 40 patients, MMR deficiency (dMMR) in 14 out of 61 and was consistent with Lynch syndrome in 9 out of 14 patients. All of the dMMR tumours were in the duodenum or jejunum and only one was stage IV. Median overall survival (OS) was 36.6 months (95% CI, 26.9-72.2). For all patients, in univariate analysis, stages I-II (P<0.001), WHO PS 0-1 (P=0.01) and dMMR phenotype (P=0.02) were significantly associated with longer OS. In multivariate analysis, disease stage (P=0.01) and WHO PS 0-1 (P=0.001) independently predicted longer OS. For stage IV patients, median OS was 20.5 months (95% CI: 14.6; 36.6 months). In multivariate analysis, WHO PS 0-1 (P=0.0001) and mutated KRAS status (P=0.02) independently predicted longer OS. CONCLUSION: This large study suggests that molecular alterations in SBA are closer to those in colorectal cancer (CRC) than those in gastric cancer, with low levels of HER 2 overexpression and high frequencies of KRAS mutations. The seemingly higher frequency of dMMR than in CRC may be explained by the higher frequency of Lynch syndrome in SBA patients. A dMMR phenotype was significantly associated with a non-metastatic tumour (P=0.02). A trend for a good prognosis and a duodenum or jejunum primary site was associated with dMMR.

Functional disorders after rectal cancer resection: does a rehabilitation programme improve anal continence and quality of life?

AIM: A poor functional outcome is often reported after total mesorectal excision (TME) for rectal cancer, especially when sphincter-saving resection with intersphincteric dissection is performed for low tumours. Anal sphincter rehabilitation is widely proposed for faecal incontinence. Very few studies have reported results to improve anal dysfunction following rectal surgery. This prospective study aimed to assess the benefits of sphincter training after TME in terms of functional outcome and quality of life. METHODS: Anal sphincter training was performed in patients undergoing laparoscopic sphincter-saving TME for rectal cancer. Rehabilitation was performed after ileostomy closure. This group was compared with 24 matched patients. Assessment included one functional and two quality of life questionnaires (SF-36 Health Status and Faecal Incontinence Quality of Life score). RESULTS: From 2007 to 2009, 22 patients underwent laparoscopic TME. The median follow-up after stoma closure was 21.2 (range 8-46) months. The mean stool frequency per day was significantly lower after sphincter training (2.6 in the training group vs 4.0 in the control group, P=0.025). Following rehabilitation, patients complained significantly less about dyschezia (22 vs 63%, P=0.008). Both groups had similar continence (Wexner score 8.3 after training vs 9.9 in controls, NS). Quality of life was significantly improved by sphincter training as measured by the vitality (P=0.004) and mental functioning (P=0.02) subscales on the SF-36 Health Status questionnaire and by the depression and self-perception (P = 0.005) categories of the Faecal Incontinence Quality of Life score. CONCLUSION: This study suggests that anal sphincter training following TME could decrease stool frequency and improve both general and specific quality of life.

Appendix intussusception in a young patient with Crohn's disease.

Appendix intussusception is rare, can be responsible of chronic unexplained abdominal pain and is mostly associated with inflammatory changes or endometriosis. A 23-year-old woman with Crohn's disease was diagnosed invaginated appendix by CT-scan and colonoscopy after several acute atypical abdominal pain episodes. These episodes were suspected to be independent of the Crohn's disease and to be attributed to the intussusception itself. A resection combining ligation of the base by colonoscopy and cecectomy by laparoscopy was performed successfully. However, no argument for Crohn's disease was found on the pathologic examination.

Digiscan activity: automated measurement of thigmotactic and stereotypic behavior in rats.

Visual measures of stereotypy, margin time (thigmotaxis or wall-hugging), and center time were correlated with automated measures using a revised 16 beam version of the Digiscan Animal Activity Monitor System. Rats were injected with d-amphetamine (1.25, 2.5, 5.0 and 10.0 mg/kg), scopolamine (1.25 and 2.5 mg/kg) or saline and drugs were found to increase center time and decrease margin time in a dose-dependent manner, with the maximum effect occurring with 1.25 and 2.5 mg/kg, respectively. At higher doses, an opposite effect was observed. Extremely high correlations between visual and automated recordings of both margin time and center time were found. Since thigmotaxic or wall-hugging behavior has been used as an indicator of emotionality in rats, the results of the present study suggest that these two locomotor variables may be useful additions to the Digiscan multivariate analysis of locomotor behavior. It was also found that a redefinition of stereotypic behavior improved its correlation with visual measurements compared to earlier studies.