Clinical Practice Guidelines for Enhanced Recovery After Colon and Rectal Surgery From the American Society of Colon and Rectal Surgeons and the Society of American Gastrointestinal and Endoscopic Surgeons

Effects of diet and antibiotics on anastomotic healing: A mouse model study with varied dietary fiber and fat, and pre-operative antibiotics

INTRODUCTION

This study investigated the separate impacts of diet and pre-operative antibiotics on gut microbiome and colonic anastomotic healing using a mouse model.

METHODS

Male C57BL/6J mice were fed either low-fat-high-fibre (SD) or high-fat-low-fiber (WD) groups for 6 weeks, then further received either pre-operative antibiotics or a control sham before a colonic anastomotic procedure was performed. After 7 days, the anastomosis was assessed and microbiota composition and biodiversity were analyzed in anastomotic tissue and stool.

RESULTS

WD-fed mice had shorter survival (5.2 ​± ​2.3 vs. 6.9 ​± ​2.3 days, p ​= ​0.022), increased weight loss (5.55 ​± ​3.80g vs. 2.65 ​± ​2.36g, p ​= ​0.03), and reduced biodiversity compared to SD-fed mice. Pre-operative antibiotics improved anastomotic healing scores (1.33 ​± ​0.65 vs. 2.08 ​± ​0.79, p ​= ​0.02) and reduced Enterococcus faecalis growth in tissue and stool (p ​= ​0.02, p ​= ​0.02). Improved anastomotic healing correlated with lower Enterococcus abundance (p ​= ​0.04) and higher collagen III and IV levels (p ​= ​0.01, 0.04) in anastomotic tissue.

CONCLUSION

SD promotes enhanced post-operative recovery and increased microbiome biodiversity, while pre-operative antibiotics enhance anastomotic healing by suppressing Enterococcus faecalis growth, mitigating collagen III/IV degradation.

Assessing robotic-assisted surgery versus open approach in penetrating Crohn's disease: advantages and outcomes in ileocolic resection

INTRODUCTION

Penetrating Crohn's disease (CD) often necessitates surgical intervention, with the open approach traditionally favored. Robotic-assisted surgery offers potential benefits but remains understudied in this complex patient population. Additionally, the lack of standardized surgical complexity scoring in CD hinders research and comparisons.

METHODS

We retrospectively analyzed adult patients with penetrating CD who underwent either robotic-assisted ileocolic resection (RICR) or open ileocolic resection (OICR) at our institution from January 2007 to December 2021. We assessed endpoints, including length of stay, complications, readmissions, reoperations, and other perioperative outcomes.

RESULTS

RICR demonstrated safety outcomes comparable to OICR. Importantly, RICR patients experienced significantly reduced estimated blood loss (p < 0.0001), shorter hospital stays (median 4.5 days versus 6.9 days; p = 0.01), lower surgical site infection rates (0% versus 15.4%; p = 0.01), and decreased 30-day readmission rates (0% versus 15.4%; p = 0.01). Linear regression analysis revealed the need for additional strictureplasties (coefficient: 84.8; p = 0.008), colonic resections (coefficient: 41.7; p = 0.008), and estimated blood loss (coefficient: 0.07; p = 0.002) independently correlated with longer operative times).

CONCLUSION

Robotic-assisted surgery appears to be a safe and potentially beneficial alternative for the surgical management of penetrating CD, offering advantages in perioperative outcomes reducing length of stay, blood loss, surgical site infection rates, and readmission rates. Further validation with larger cohorts is warranted.

Early discharge after enhanced recovery rectal resection does not increase emergency department visits and readmissions: a single institution analysis

BACKGROUND

Same-day discharge after colectomy in enhanced recovery pathways has been shown to be feasible. It is not clear how early patients with rectal resections may be safely discharged. The study aim was to determine if patients discharged ≤ 3 days after rectal resections are associated with increased rates of emergency department (ED) visits and hospital readmissions.

METHODS

Retrospective analysis of enhanced recovery low anterior resection, abdominoperineal resection, and proctocolectomy patients in a prospectively maintained single institution colorectal surgery database from 01/01/2018 to 07/15/2022. Clinic visits were scheduled within 4-7 days and at 30 days after discharge, and every 1-2 weeks for stoma patients until no longer needed. Logistic regression models were used to analyze the association of discharge on postoperative days (POD)-1-3, POD-4-5, and POD ≥ 6 days with incidence of ED visits and readmissions.

RESULTS

A total of 118 patients met inclusion criteria, 76 with stomas. Median postoperative length of stay was 5 [IQR 6.5] days. Mean age was 58.6 years; 59.3% were ASA-3; and 69.5% had a minimally invasive surgical approach. ED visits were not significantly different between discharge-day groups (p = 0.096). No patients were discharged same-day, one without a stoma was discharged on POD-1, ten patients (2 with stomas) on POD-2, and twenty-four patients (13 with stomas) on POD-3. ED visits were lowest for the POD-1-3 group (14.3%) but not significantly different than later discharge groups (p = 0.166). Readmission rate was also lowest for the POD-1-3 group (11.4%) and also not significantly different than later discharge groups (p = 0.261) and this was confirmed with logistic regression. Complication rate was lowest in the POD-1-3 group (p < 0.001).

CONCLUSION

Early discharge after enhanced recovery partial or complete proctectomy is not associated with increased ED visits and readmissions. Follow up studies should identify post-discharge resources that allow safe early discharge and that may be standardized and generalizable.

Enhanced recovery after surgery protocols following emergency intra-abdominal surgery: a systematic review and meta-analysis

PURPOSE

The aim of this systematic review and meta-analysis was to evaluate whether Enhanced Recovery After Surgery (ERAS) protocols for patients undergoing emergency intra-abdominal surgery improve postoperative outcomes as compared to conventional care.

METHODS

MEDLINE, EMBASE, WoS, CENTRAL, and Pubmed were searched from inception to December 2022. Articles were eligible if they were randomized controlled trials (RCT) or non-randomized studies comparing ERAS protocols to conventional care for patients undergoing emergency intra-abdominal surgery. The outcomes included postoperative length of stay (LOS), postoperative morbidity, prolonged postoperative ileus (PPOI), and readmission. An inverse variance random effects meta-analysis was performed. A risk of bias was assessed with Cochrane tools. Certainty of evidence was assessed with GRADE.

RESULTS

After screening 1018 citations, 20 studies with 1615 patients in ERAS programs and 1933 patients receiving conventional care were included. There was a reduction in postoperative LOS in the ERAS group for patients undergoing upper gastrointestinal (GI) surgery (MD3.35, 95% CI 2.52-4.17, p < 0.00001) and lower GI surgery (MD2.80, 95% CI 2.62-2.99, p < 0.00001). There was a reduction in postoperative morbidity in the ERAS group for patients undergoing upper GI surgery (RR0.56, 95% CI 0.30-1.02, p = 0.06) and lower GI surgery (RR 0.66, 95%CI 0.52-0.85, p = 0.001). In the upper and lower GI subgroup, there were nonsignificant reductions in PPOI in the ERAS groups (RR0.59, 95% CI 0.30-1.17, p = 0.13; RR0.49, 95% CI 0.21-1.14, p = 0.10). There was a nonsignificant increased risk of readmission in the ERAS group (RR1.60, 95% CI 0.57-4.50, p = 0.50).

CONCLUSION

There is low-to-very-low certainty evidence supporting the use ERAS protocols for patients undergoing emergency intra-abdominal surgery. The currently available data are limited by imprecision.

Current Management of Acute Severe Ulcerative Colitis: New Insights on the Surgical Approaches

Acute severe ulcerative colitis (ASUC) is a life-threatening medical emergency with considerable morbidity. Despite recent advances in medical IBD therapy, colectomy rates for ASUC remain high. A scoping review of published articles on ASUC was performed. We collected data, such as general information of the disease, diagnosis and initial assessment, and available medical and surgical treatments focusing on technical aspects of surgical approaches. The most relevant articles were considered in this scoping review. The management of ASUC is challenging; currently, personalized treatment for it is unavailable. Sequential medical therapy should be administrated, preferably in high-volume IBD centers with close patient monitoring and indication for surgery in those cases with persistent symptoms despite medical treatment, complications, and clinical worsening. A total colectomy with end ileostomy is typically performed in the acute setting. Managing rectal stump is challenging, and all individual and technical aspects should be considered. Conversely, when performing elective colectomy for ASUC, a staged surgical procedure is usually preferred, thus optimizing the patients' status preoperatively and minimizing postoperative complications. The minimally invasive approach should be selected whenever technically feasible. Robotic versus laparoscopic ileal pouch-anal anastomosis (IPAA) has shown similar outcomes in terms of safety and postoperative morbidity. The transanal approach to ileal pouch-anal anastomosis (Ta-IPAA) is a recent technique for creating an ileal pouch-anal anastomosis via a transanal route. Early experiences suggest comparable short- and medium-term functional results of the transanal technique to those of traditional approaches. However, there is a need for additional comparative outcomes data and a better understanding of the ideal training and implementation pathways for this procedure. This manuscript predominantly explores the surgical treatment of ASUC. Additionally, it provides an overview of currently available medical treatment options that the surgeon should reasonably consider in a multidisciplinary setting.

Use of Simulation For Training Advanced Colorectal Procedures

OBJECTIVE

Simulation training for minimally invasive colorectal procedures is in developing stages. This study aims to assess the impact of simulation on procedural knowledge and simulated performance in laparoscopic low anterior resection (LLAR) and robotic right colectomy (RRC).

DESIGN

LLAR and RRC simulation procedures were designed using human cadaveric models. Resident case experience and simulation selfassessments scores for operative ability and knowledge were collected before and after the simulation. Colorectal faculty assessed resident simulation performance using validated assessment scales (OSATS-GRS, GEARS). Paired t-tests, unpaired t-tests, Pearson's correlation, and descriptive statistics were applied in analyses.

SETTING

Barnes-Jewish Hospital/Washington University School of Medicine in St. Louis, Missouri.

PARTICIPANTS

Senior general surgery residents at large academic surgery program.

RESULTS

Fifteen PGY4/PGY5 general surgery residents participated in each simulation. Mean LLAR knowledge score increased overall from 10.0 ±  2.0 to 11.5  ±  1.6 of 15 points (p = 0.0018); when stratified, this increase remained significant for the PGY4 cohort only. Mean confidence in ability to complete LLAR increased overall from 2.0 ±  0.8 to 2.8  ± 0.9 on a 5-point rating scale (p = 0.0013); when stratified, this increase remained significant for the PGY4 cohort only. Mean total OSATS GRS score was 28  ±  6.3 of 35 and had strong positive correlation with previous laparoscopic colorectal experience (r = 0.64, p = 0.0092). Mean RRC knowledge score increased from 9.4 ±  2.2 to 11.1 ±  1.5 of 15 points (p = 0.0030); when stratified, this increase again remained significant for the PGY4 cohort only. Mean confidence in ability to complete RRC increased from 1.9 ±  0.9 to 3.2  ±  1.1 (p = 0.0002) and was significant for both cohorts.

CONCLUSIONS

Surgical trainees require opportunities to practice advanced minimally invasive colorectal procedures. Our simulation approach promotes increased procedural knowledge and resident confidence and offers a safe complement to live operative experience for trainee development. In the future, simulations will target trainees on the earlier part of the learning curve and be paired with live operative assessments to characterize longitudinal skill progression.

Role of Age as a Predictor of Major Complications After Elective Surgery for Ulcerative Colitis

BACKGROUND

The incidence of ulcerative colitis (UC) in the elderly population is increasing. The aim of this study was to assess the degree to which age and other factors increase the risk of developing major complications in patients undergoing elective surgery for UC.

METHODS

Using the ACS-NSQIP database from 2016 to 2020, patients undergoing elective surgery for UC were divided into four categories: younger than 30, 30-49, 50-69, and 70 or older. A composite outcome was created including major complications and multivariable analysis was performed to identify factors associated with composite major complications.

RESULTS

5946 patients diagnosed with ulcerative colitis who underwent elective surgery were included in the analysis. 14.1% of all patients developed a major complication. For patients with UC, factors associated with the development of a major complication were age 50-69 (OR 1.31, P = .034), male sex (OR 1.38, P < .001), Black race (OR 1.47, P = .049), dependent status (OR 2.06, P = .028), hypoalbuminemia (OR 1.92, P < .001), preoperative steroid treatment (OR 1.27, P = .038), preoperative transfusion (OR 1.91, P < .001), open surgical approach (OR 1.44, P = .002), and partial colectomy (OR 1.51, P = .007). Specifically in patients aged 70 or older, hypoalbuminemia (OR 3.20, P < .001) and preoperative transfusion (OR 2.78, P = .019) were associated with a major complication.

CONCLUSION

Age is a risk factor for the development of a major complication in UC patients undergoing elective surgery. However, it is not the only risk factor nor is it the one that increases the risk the most.

Early Discharge after Enhanced Recovery Colectomy Does Not Increase Emergency Department Visits and Readmissions: A Single Institution Analysis

BACKGROUND

Same-day discharge after colorectal surgery in enhanced recovery pathways is increasing. This study aimed to determine if discharge on postoperative days (POD) one or two is associated with increased rates of emergency department (ED) visits and hospital readmissions after left and right colectomy.

METHODS

Single institution retrospective analysis of prospective institutional colorectal surgery database between 07/01/2018 and 07/15/2022. Primary outcomes were ED visit and readmission rates for enhanced recovery open and minimally invasive right and left colectomy using logistic regressions models.

RESULTS

820 patients met inclusion criteria. There were significant differences in discharge-day by diagnosis-58.5% of patients with Crohn's disease were discharged on POD ≥4 and 21.6% with benign colon neoplasia were discharged on POD-0-1 (P < .001). ED visits occurred in 12.9% of the study population and were not significantly different between discharge-day groups (P = .096). Overall readmission rate was 8.5% and significantly different between discharge-day groups (0% POD-0 vs 8.3% POD-1 vs 5.8% POD-2 vs 6.9% POD-3 vs 12.9% POD ≥4, P = .041). Logistic regression showed that ED visits and readmissions for longer discharge-days (POD-2, POD-3, POD ≥4) were not significantly different than POD-0-1. Readmission diagnoses for the study population were higher for ileus (17.1%) and surgical site infection (SSI) type-III (22.9%) than for acute kidney injury (1.4%) and SSI type-I/II (1.4%).

CONCLUSION

Early discharge after left and right colectomy is not associated with increased rates of ED visits and readmissions. Same-day discharge may be feasible in selected enhanced recovery patients. Standardized post-discharge resources that safely allow same-day discharge require further investigation.

Early discharge following colectomy for colon cancer: A national perspective

BACKGROUND

Although early discharge after colectomy has garnered significant interest, contemporary, large-scale analyses are lacking.

OBJECTIVE

The present study utilized a national cohort of patients undergoing colectomy to examine costs and readmissions following early discharge.

METHODS

All adults undergoing elective colectomy for primary colon cancer were identified in the 2016-2019 Nationwide Readmissions Database. Patients with perioperative complications or prolonged length of stay (>8 days) were excluded to enhance cohort homogeneity. Patients discharged by postoperative day 3 were classified as Early, and others as Routine. Entropy balancing and multivariable regression were used to assess the risk-adjusted association of early discharge with costs and non-elective readmissions. Importantly, we compared 90-day stroke rates to examine whether our results were influenced by preferential early discharge of healthier patients.

RESULTS

Of an estimated 153,996 patients, 45.5% comprised the Early cohort. Compared to Routine, the Early cohort was younger and more commonly male. Patients in the Early group more commonly underwent left-sided colectomy and laparoscopic operations. Following multivariable adjustment, expedited discharge was associated with a $4,500 reduction in costs as well as lower 30-day (adjusted odds ratio [AOR] 0.74, p<0.001) and 90-day non-elective readmissions (AOR 0.74, p<0.001). However, among those readmitted within 90 days, Early patients were more commonly readmitted for gastrointestinal conditions (45.8 vs 36.4%, p<0.001). Importantly, both cohorts had comparable 90-day stroke rates (2.2 vs 2.1%, p = 0.80).

CONCLUSIONS

The present work represents the largest analysis of early discharge following colectomy for cancer and supports its relative safety and cost-effectiveness.

Perioperative Malnutrition

CASE SUMMARY

A 61-year-old man presented with penetrating Crohn's ileocolitis and neoterminal ileal fibrostenotic stricture. He developed an anastomotic leak after a redo ileocolic resection and now has a chronic low-output enterocutaneous fistula. He was transferred from an outside institution for further management and is currently without Crohn's disease (CD)-related medical therapy. The fistula output is 25 to 50 mL/day of GI contents. His weight dropped by 25 pounds in 6 months after surgery with a current BMI of 19.1, albumin of 2.0 g/dL, and hemoglobin of 9.7 g/dL. During a 3-month period, he was optimized for surgery with local wound care, initiation of infliximab, and nutritional support with exclusive enteral nutrition (EEN). He gained 9 pounds (BMI 20.4). Albumin improved to 3.4 g/dL and hemoglobin to 12.1 g/dL. He underwent a successful open takedown of the enterocutaneous fistula with ileocolic anastomosis.