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Previous atrial fibrillation screening trials have highlighted the need for more targeted approaches. We did a pragmatic study to evaluate the effectiveness of an artificial intelligence (AI) algorithm-guided targeted screening approach for identifying previously unrecognised atrial fibrillation. For this non-randomised interventional trial, we prospectively recruited patients with stroke risk factors but with no known atrial fibrillation who had an electrocardiogram (ECG) done in routine practice. Participants wore a continuous ambulatory heart rhythm monitor for up to 30 days, with the data transmitted in near real time through a cellular connection. The AI algorithm was applied to the ECGs to divide patients into high-risk or low-risk groups. The primary outcome was newly diagnosed atrial fibrillation. In a secondary analysis, trial participants were propensity-score matched (1:1) to individuals from the eligible but unenrolled population who served as real-world controls. This study is registered with ClinicalTrials.gov, NCT04208971. 1003 patients with a mean age of 74 years (SD 8·8) from 40 US states completed the study. Over a mean 22·3 days of continuous monitoring, atrial fibrillation was detected in six (1·6%) of 370 patients with low risk and 48 (7·6%) of 633 with high risk (odds ratio 4·98, 95% CI 2·11–11·75, p=0·0002). Compared with usual care, AI-guided screening was associated with increased detection of atrial fibrillation (high-risk group: 3·6% [95% CI 2·3–5·4] with usual care vs 10·6% [8·3–13·2] with AI-guided screening, p<0·0001; low-risk group: 0·9% vs 2·4%, p=0·12) over a median follow-up of 9·9 months (IQR 7·1–11·0). An AI-guided targeted screening approach that leverages existing clinical data increased the yield for atrial fibrillation detection and could improve the effectiveness of atrial fibrillation screening. Mayo Clinic Robert D and Patricia E Kern Center for the Science of Health Care Delivery.

Surgical site infections (SSIs) are one of the most common complications following diverting loop ileostomy (DLI) closures. This study assesses SSIs after DLI closure and the temporal trends in skin closure technique. A retrospective review was conducted using the American College of Surgeons National Surgical Quality Improvement Program database for adult patients who underwent a DLI closure between 2012 and 2021 across a multistate health system. Skin closure technique was categorized as primary, primary ​+ ​drain, or purse-string closure. The primary outcome was SSI at the former DLI site. A SSI was diagnosed in 5.7% of patients; 6.9% for primary closure, 5.7% for primary closure ​+ ​drain, and 2.7% for purse-string closure (p ​= ​0.25). A diagnosis of Crohn's disease, diverticular disease, and increasing operative time were significant risk factors for SSIs. There was a positive trend in the use of purse-string closure over time (p ​< ​0.0001). This study identified a low SSI rate after DLI closure which did not vary significantly based on skin closure technique. Utilization of purse-string closure increased over time. [Display omitted] •There was a low surgical site infection rate after diverting loop ileostomy closure.•Surgical site infections did not vary significantly based on skin closure technique.•Crohn's, diverticulitis, and longer operative times were significant risk factors.•Utilization of the purse-string closure technique has increased over time.

A left-sided anastomotic leak risk score was previously developed and internally but not externally validated. Left-sided colectomy anastomotic leak risk scores were calculated for patients within the ACS NSQIP Colectomy Targeted PUF from 2017 to 2018 and institutional NSQIP databases at three hospitals from 2011 to 2019. The calibration and discrimination of the risk score was assessed. A total of 21,116 patients (ACS NSQIP) and 485 patients (institutional NSQIP) were identified. Anastomotic leak rate was 2.8% and 2.9% respectively. C-statistic in the ACS NSQIP cohort was 0.61 and 0.64 in the institutional cohort compared to 0.66 in the original development cohort. Strong visual correspondence existed between predicted and observed anastomotic leak rates in the ACS NSQIP cohort. The left-sided anastomotic leak risk score was validated in two new populations. Use of the score would aid in the decision of when to perform a diverting stoma. •A left-sided colectomy anastomotic leak risk score was externally valid.•Validation of risk calculators requires large data sets when using a rare event.•Use of temporary diversion varies widely when compared to anastomotic leak risk.•Anastomotic leak risk scores may help optimize decision making on use of diversion.

Enterovesical fistula in Crohn’s disease that require surgery may be managed safely laparoscopically with similar morbidity to open repair and a shorter length of stay. Preoperative biologic exposure does not affect surgical morbidity.

Background Anastomotic leak is a feared complication after left-sided colectomy, but its risk can potentially be reduced with the use of a diverting ostomy. However, an ostomy has its own associated negative sequelae; therefore, it is critical to appropriately identify patients to divert. This is difficult in practice since many risk factors for anastomotic leak exist and outside factors bias this decision. We aimed to develop and validate a risk score to predict an individual’s risk of anastomotic leak and aid in the decision. Methods The American College of Surgeons National Surgical Quality Improvement Program Colectomy Targeted PUF was queried from 2012 to 2016 for patients undergoing elective left-sided resection for malignancy, benign neoplasm, or diverticular disease. Multivariable logistic regression identified predictors of anastomotic leak in non-diverted patients, and a risk score was developed and validated. Results 38,475 patients underwent resection with an overall anastomotic leak rate of 3%. Independent risk factors for anastomotic leak included younger age, male sex, tobacco use, and omission of combined bowel preparation. A risk score incorporating independent predictors demonstrated excellent calibration. There was strong visual correspondence between predicted and observed anastomotic leak rates. 3960 patients underwent resection with diversion, yet over half of these patients had a predicted leak rate of less than 4%. Conclusion A novel risk score can be used to stratify patients according to anastomotic leak risk after elective left-sided resection. Intraoperative calculation of scores for patients can help guide surgical decision-making in both diverting the highest risk patients and avoiding diversion in low-risk patients.

Purpose Pelvic organ prolapse (POP) surgery is performed with and without concomitant hysterectomy depending on a variety of factors. The objective was to compare 30-day major complications following POP surgery with and without concomitant hysterectomy. Methods This was a retrospective cohort study using the National Surgical Quality Improvement Program (NSQIP) multicenter database to compare 30-day complications using Current Procedural Terminology (CPT) codes for POP with or without concomitant hysterectomy. Patients were grouped by procedure: Vaginal prolapse repair (VAGINAL), minimally invasive sacrocolpopexy (MISC), and open abdominal sacrocolpopexy (OASC). 30-day postoperative complications and other relevant data were evaluated in patients who underwent concomitant hysterectomy compared to those who did not. Multivariable logistic regression models assessed the association of concomitant hysterectomy on 30-day major complications stratified by surgical approach. Results 60,201 women undergoing POP surgery comprised our cohort. Within 30 days of surgery, there were 1722 major complications in 1432 patients (2.4%). Prolapse surgery alone had a significantly lower overall complication rate than with concomitant hysterectomy (1.95% vs 2.81%; p < .001). Multivariable analysis revealed odds of complications following POP surgery was higher among women who underwent concomitant hysterectomy compared to those who did not have hysterectomy in VAGINAL (OR 1.53, 95% CI 1.36–1.72), OASC (OR 2.70, 95% CI 1.69–4.33), and overall (OR 1.46, 95% CI 1.31–1.62), but not in MISC (OR 0.99, 95% CI 0.67–1.46.) Conclusion Concomitant hysterectomy at the time of pelvic organ prolapse (POP) surgery increases the risk of 30-day postoperative complications in comparison to prolapse surgery alone in our overall cohort.

The American College of Surgeons (ACS) has advocated for the expansion of outpatient surgery to conserve limited hospital resources and bed capacity, while maintaining surgical throughput, during the COVID-19 pandemic. To investigate the association of the COVID-19 pandemic with outpatient scheduled general surgery procedures. This multicenter, retrospective cohort study analyzed data from hospitals participating in the ACS National Surgical Quality Improvement Program (ACS-NSQIP) from January 1, 2016, to December 31, 2019 (before COVID-19), and from January 1 to December 31, 2020 (during COVID-19). Adult patients (≥18 years of age) who underwent any 1 of the 16 most frequently performed scheduled general surgery operations in the ACS-NSQIP database were included. The primary outcome was the percentage of outpatient cases (length of stay, 0 days) for each procedure. To determine the rate of change over time, multiple multivariable logistic regression models were used to assess the independent association of year with the odds of outpatient surgery. A total of 988 436 patients were identified (mean [SD] age, 54.5 [16.1] years; 574 683 women [58.1%]), of whom 823 746 underwent scheduled surgery before COVID-19 and 164 690 had surgery during COVID-19. On multivariable analysis, the odds of outpatient surgery during COVID-19 (vs 2019) were higher in patients who underwent mastectomy for cancer (odds ratio [OR], 2.49 [95% CI, 2.33-2.67]), minimally invasive adrenalectomy (OR, 1.93 [95% CI, 1.34-2.77]), thyroid lobectomy (OR, 1.43 [95% CI, 1.32-1.54]), breast lumpectomy (OR, 1.34 [95% CI, 1.23-1.46]), minimally invasive ventral hernia repair (OR, 1.21 [95% CI, 1.15-1.27]), minimally invasive sleeve gastrectomy (OR, 2.56 [95% CI, 1.89-3.48]), parathyroidectomy (OR, 1.24 [95% CI, 1.14-1.34]), and total thyroidectomy (OR, 1.53 [95% CI, 1.42-1.65]). These odds were all greater than those observed for 2019 vs 2018, 2018 vs 2017, and 2017 vs 2016, suggesting that an accelerated increase in outpatient surgery rates in 2020 occurred as a consequence of COVID-19, rather than a continuation of secular trends. Despite these findings, only 4 procedures had a clinically meaningful (≥10%) overall increase in outpatient surgery rates during the study period: mastectomy for cancer (+19.4%), thyroid lobectomy (+14.7%), minimally invasive ventral hernia repair (+10.6%), and parathyroidectomy (+10.0%). In this cohort study, the first year of the COVID-19 pandemic was associated with an accelerated transition to outpatient surgery for many scheduled general surgical operations; however, the magnitude of percentage increase was small for all but 4 procedure types. Further studies should explore potential barriers to the uptake of this approach, particularly for procedures that have been shown to be safe when performed in an outpatient setting.

Background Operative options for duodenal Crohn’s disease include bypass, stricturoplasty, or resection. What factors are associated with operation selection and whether differences exist in outcomes is unknown. Methods Patients with duodenal Crohn’s disease requiring operative intervention across a multi-state health system were identified. Patient and operative characteristics, short-term surgical outcomes, and the need for future endoscopic or surgical management of duodenal Crohn’s disease were analyzed. Results 40 patients underwent bypass ( n  = 26), stricturoplasty ( n  = 8), or resection ( n  = 6). Median age of diagnosis of Crohn’s disease was 23.5 years, and over half of the patients had undergone prior surgery for CD. Operation type varied by the most proximal extent of duodenal involvement. Patients with proximal duodenal CD underwent bypass operations more commonly than those with mid- or distal duodenal disease ( p  = 0.03). Patients who underwent duodenal stricturoplasty more often required concomitant operations for other sites of small bowel or colonic CD (63%) compared to those who underwent bypass (39%) or resection (33%). No patients required subsequent surgery for duodenal CD at a median follow-up of 2.8 years, but two patients required endoscopic dilation ( n  = 1 after stricturoplasty, n  = 1 after resection). Conclusion Patients who require surgery for duodenal Crohn’s disease appear to have an aggressive Crohn’s disease phenotype, represented by a younger age of diagnosis and a high rate of prior resection for Crohn’s disease. Choice of operation varied by proximal extent of duodenal Crohn’s disease.

Incision and drainage of perianal sepsis has appreciable success in the immunocompetent population, but outcomes after incision and drainage in the immunosuppressed population are unknown. 13,666 patients (n = 930 immunosuppressed) undergoing incision and drainage of perianal sepsis between 2011 and 2015 in the American College of Surgeons National Surgical Quality Improvement Program were identified. The main outcomes were major morbidity, return to the operating room, and mortality. Multivariable analysis was performed for each outcome. Sepsis was the most common postoperative complication. Preoperative immunosuppression was an independent risk factor for major morbidity (odds ratio [OR]: 1.6, p < 0.01), return to the operating room (OR: 1.9, p < 0.01), and mortality (OR: 2.6, p < 0.01). Immunosuppression is an independent risk factor for major morbidity, return to the operating room, and mortality. With post-operative sepsis the most common complication, inpatient admission and extended duration antibiotic therapy is warranted in immunosuppressed patients. •Morbidity is high after I and D of a perianal abscess in immunosuppressed patients.•Sepsis is the leading complication after I and D in all patients.•Immunosuppression is an independent risk factor for mortality.

Background: Crohn’s disease (CD) is an inflammatory bowel disease (IBD) that is prevalent worldwide. It can affect any segment of the gastrointestinal tract, from the mouth to the anus. When CD affects the anus, perianal fistulizing disease develops. The management of perianal CD is challenging and may require morbid surgery when there is no response to medical therapy. The emergence of novel biologic therapies, namely tumor necrosis alpha (TNF-α) inhibitors, has proven to provide long-term relief and prevent disease-related complications. Perianal CD is, however, refractory or recurrent in up to 80% of patients. One of the reported options to manage perianal CD is hyperbaric oxygen therapy (HBOT), which aims at increasing tissue oxygen saturation in an attempt to promote repair and reverse local inflammation. Data on this approach is scant. Methods: A retrospective review was performed to identify patients with CD at the Mayo Clinic in Rochester who underwent HBOT for perianal disease between 2014 and 2023. Demographic and clinical data were reviewed, including the history of the disease, concomitant medical and surgical therapy and the need for fecal diversion. The HBOT regimen, including the number of sessions and clinical response, were reviewed. Results: Six patients aged from 19 to 60 years underwent HBOT for perianal CD. Two patients had a history of total proctocolectomy with ileal-anal pouch anastomosis (IPAA). All patients except one were on immunosuppressive medication including biologic agents. Four patients had fecal diversion with an ileostomy or colostomy. Patients received between 10 and 40 sessions of HBOT. Four patients reported symptomatic improvement. On physical examination and/or imaging assessment, improvement was noted in one patient. Progression of the perianal disease was noted in all other patients, with all except one requiring an operation in the following year. Conclusions: HBOT may provide symptomatic relief in some patients with refractory perianal CD, but data on its long-term efficacy remains limited.