Early diverting stoma closure is feasible and safe: results from a before-and-after study on the implementation of an early closure protocol at a tertiary referral center.

BACKGROUND: Evidence on early closure (EC) of defunctioning stoma (DS) after colorectal surgery shows a favorable effect when patients are carefully selected. Therefore, a clinical pathway adapted to the implementation of an EC strategy was developed in our center. The aim of this study was to carry out a comparative analysis of time until DS closure and DS-related morbidity before and after the implementation of an EC protocol (ECP). METHODS: This study is a before-and-after comparative analysis. Patients were divided into two cohorts according to the observational period: patients from the period before the ECP implementation (January 2015-December 2019) [Period 1] and those from the period after that (January 2020-December 2022) [Period 2]. All consecutive patients subjected to elective DS closure within both periods were eligible. Early closure was defined as the reversal within 30 days from DS creation. Patients excluded from EC or those not closed within 30 days since primary surgery were analyzed as late closure (LC). Baseline characteristics and DS-related morbidity were recorded. RESULTS: A total of 145 patients were analyzed. Median time with DS was shorter in patients after ECP implementation [42 (21-193) days versus 233 (137-382) days, p < 0.001]. This reduction in time to closure did not impact the DS closure morbidity and resulted in less DS morbidity (68.8% versus 49.2%, p = 0.017) and fewer stoma nurse visits (p = 0.029). CONCLUSIONS: The ECP was able to significantly reduce intervals to restoration of bowel continuity in patients with DS, which in turn resulted in a direct impact on the reduction of DS morbidity without negatively affecting DS closure morbidity.

Local tumor regrowth after clinical complete response following neoadjuvant therapy for rectal cancer: what happens when organ preservation falls short.

Organ preservation strategies, especially watch and wait, after neoadjuvant treatment in locally advanced rectal cancer, have become topics that generate significant interest, for both patients and clinicians. The obvious advantage of these strategies is the avoidance of surgery with its associated risks and functional consequences. Over time, it has become evident that these strategies offer acceptable safety in oncological terms and, in most patients, allows preservation of the rectum without harming patients in terms of distant metastasis or survival. However, there is a small group of patients in whom the tumor returns after an initially diagnosed clinical complete response; patients with local tumor regrowth. The main threat in these patients is not simply local disease, which can be successfully managed in most cases, but the possible effects it may have on distant metastases. The pathophysiology of the phenomenon of local tumor regrowth is not well known and, therefore, strategies to minimize possible impact on survival are not well defined. Our aim is to review key issues in this subgroup that pose a substantial threat to the safety and viability of organ-preserving and watch-and-wait strategies. We also explore possible pathophysiologic explanations and future directions and perspectives that may improve both local and systemic disease control.

Epidemiology, oncologic results and risk stratification model for metachronous peritoneal metastases after surgery for pT4 colon cancers: results from an observational retrospective multicentre long-term follow-up study.

PURPOSE: Metachronous peritoneal metastases (MPM) following a curative surgery procedure for pT4 colon cancer is a challenging condition. Current epidemiological studies on this topic are scarce. METHODS: A retrospective multicentre trial was designed. All consecutive patients who underwent operations to treat pT4 cancers between 2015 and 2017 were reviewed. Demographic, clinical, operative, pathological and oncological follow-up variables were included. MPM were described as any oncological disease at the peritoneum, clearly different from a local recurrence. Univariate and multivariate Cox regression models were constructed. A risk stratification model was created on a cumulative factor basis. According to the calculated hazard ratio (HR), a scoring system was designed (HR < 3, 1 point; HR > 3, 2 points) and a scale from 0 to 6 was calculated for peritoneal disease-free rate (PDF-R). A risk stratification model was also created on the basis of these calculations. RESULTS: Fifty different hospitals were involved, which included a total of 1356 patients. Incidence of MPM was 13.6% at 50 months median follow-up. The strongest independent risk factors for MPM were positive pN stage [HR 3.72 (95% CI 2.56-5.41; p < 0.01) for stage III disease], tumour perforation [HR 1.91 (95% CI 1.26-2.87; p < 0.01)], mucinous or signet ring cell histology [HR 1.68 (95% CI 1.1-2.58; p = 0.02)], poorly differentiated tumours [HR 1.54 (95% CI 1.1-2.2; p = 0.02)] and emergency surgery [HR 1.42 (95% CI 1.01-2.01; p = 0.049)]. In the absence of additional risk factors, pT4 tumours showed 98% and 96% PDF-R in 1-year and 5-year periods based on Kaplan-Meier curves. CONCLUSIONS: Cumulative MPM incidence was 13.6% at 5-year follow-up. The sole presence of a pT4 tumour resulted in high rates of PDF-R at 1-year and 5-year follow-up (98% and 96% respectively). Five additional risk factors different from pT4 status itself were identified as possible MPM indicators during follow-up.

Surgical treatment trends and outcomes for anal fistula: fistulotomy is still accurate and safe. Results from a nationwide observational study.

PURPOSE: The aim of the present study was to analyse current surgical treatment preferences for anal fistula (AF) and its subtypes and nationwide results in terms of success and complications. METHODS: A retrospective multicentre observational cohort study was conducted. The study period was 1 year (2019), with a follow-up period of at least 1 year. A descriptive analysis of patient characteristics and trends regarding technical options was performed. Univariate and multivariate Cox regression models were used to analyse factors associated with healing and faecal incontinence (FI). RESULTS: Fifty-one hospitals were involved, providing data on 1628 patients with AF. At a median follow-up of 18.3 (9.9-28.3) months, 1231 (75.9%) patients achieved healing, while 390 (24.1%) did not; failure was catalogued as persistence in 279 (17.2.0%) patients and as recurrence in 111 (6.8%). On multivariate analysis, factors associated with healing were fistulotomy (OR 5.5; 95% CI 3.8-7.9; p < 0.001), simple fistula (OR 2.1; 95% CI 1.5-2.8; p < 0.001), single tract (HR 1.9; 95% CI 1.3-2.8; p < 0.001) and number of preparatory surgeries (none vs. 3; HR 1.8; 95% CI 1.2-2.8; p = 0.006). Regarding de novo FI, in the multivariate analysis previous anal surgery (OR 1.5, 95% CI 1.0-2.4, p = 0.037), age (OR 1.02, 95% CI 1.00-1.04, p = 0.002) and being female (OR 1.7, 95% CI 1.1-2.5, p = 0.008) were statistically related. CONCLUSIONS: Anal fistulotomy is the most used procedure for AF, especially for simple AF, with a favourable overall balance between healing and continence impairment. Sphincter-sparing or minimally invasive sphincter-sparing techniques resulted in lower rates of healing. In spite of their intended sphincter-sparing design, a certain degree of FI was observed for several of these techniques.

Peri-ileostomy pyoderma gangrenosum. Case report.

Pyoderma gangrenosum is one of the most severe complications that can occur following stoma placement. Despite few cases reported in the literature, it is considered an underdiagnosed entity. We present a case of peri-ileostomy pyoderma gangrenosum (PPG) in a patient who underwent a pancoloproctectomy and permanent ileostomy due to ulcerative colitis (UC). Treatment was based on local cures, proper fitting of ostomy devices, topical tacrolimus and systemic corticosteroids, adalimumab and antibiotics. Satisfactory resolution was achieved in eight weeks.