Post-operative morbidity, but not mortality, is worsened by operative delay in septic diverticulitis

Reasons for in-hospital delays to emergency surgical care in a resource-limited setting: Surgery versus anesthesiology perspective

Patients experience delays in emergency surgical care. Our 3-month mixed-methods observational prospective study examined the duration of in-hospital delays (IHDs) to emergency surgery at a tertiary hospital in Malawi and perceived reasons for such delay, assessing the correlation between surgery and anesthesia. Delays over two hours occurred in the majority, and almost 20% waited over twelve hours. However, we found no correlation between surgeons and anaesthetists in the perceived reasons for In-hospital delays to emergency surgical care.

Clinical Impact of a Quality Improvement Program Including Dedicated Emergency Radiology Personnel on Emergency Surgical Management: A Propensity Score-Matching Study

Objective

To investigate the clinical impact of a quality improvement program including dedicated emergency radiology personnel (QIP-DERP) on the management of emergency surgical patients in the emergency department (ED).

Materials and Methods

This retrospective study identified all adult patients (n = 3667) who underwent preoperative body CT, for which written radiology reports were generated, and who subsequently underwent non-elective surgery between 2007 and 2018 in the ED of a single urban academic tertiary medical institution. The study cohort was divided into periods before and after the initiation of QIP-DERP. We matched the control group patients (i.e., before QIP-DERP) to the QIP-DERP group patients using propensity score (PS), with a 1:2 matching ratio for the main analysis and a 1:1 ratio for sub-analyses separately for daytime (8:00 AM to 5:00 PM on weekdays) and after-hours. The primary outcome was timing of emergency surgery (TES), which was defined as the time from ED arrival to surgical intervention. The secondary outcomes included ED length of stay (LOS) and intensive care unit (ICU) admission rate.

Results

According to the PS-matched analysis, compared with the control group, QIP-DERP significantly decreased the median TES from 16.7 hours (interquartile range, 9.4–27.5 hours) to 11.6 hours (6.6–21.9 hours) (p < 0.001) and the ICU admission rate from 33.3% (205/616) to 23.9% (295/1232) (p < 0.001). During after-hours, the QIP-DERP significantly reduced median TES from 19.9 hours (12.5–30.1 hours) to 9.6 hours (5.7–19.1 hours) (p < 0.001), median ED LOS from 9.1 hours (5.6–16.5 hours) to 6.7 hours (4.9–11.3 hours) (p < 0.001), and ICU admission rate from 35.5% (108/304) to 22.0% (67/304) (p < 0.001).

Conclusion

QIP-DERP implementation improved the quality of emergency surgical management in the ED by reducing TES, ED LOS, and ICU admission rate, particularly during after-hours.

Delay to Intervention for Complicated Diverticulitis is Associated with Higher Inpatient Mortality

BACKGROUND

Patients with diverticular disease complicated by abscess and/or perforation represent the most severely afflicted with the highest mortality and poorest outcomes. This study investigated patient and operative factors associated with poor outcomes from diverticulitis complicated by abscess or perforation.

METHODS

We analyzed the National Inpatient Sample to identify inpatient discharges for colonic diverticulitis in the United States from 1/1988 to 9/2015. We identified patients with perforation and/or intestinal abscess based on ICD-9 codes. The primary outcome was inpatient mortality.

RESULTS

During the study period, a total of 993,220 patients were discharged with diverticulitis from sampled U.S. hospitals. From this group, 10.7% had an abscess and 1.0% had a perforation associated with diverticular disease. Inpatient mortality of diverticulitis patients with a perforation was 5.4% compared to 1.5% in those without a perforation (p<0.001). Patients with a perforation who underwent surgery had an inpatient mortality of 6.3% vs. 3.0% mortality amongst patients with a perforation who did not undergo an operation (p<0.001). Patients with a perforation that underwent surgery had a 31% increased mortality risk for each day after admission that a procedure was delayed (OR 1.31, CI 1.05-1.78; p=0.03). Mortality risk was increased for patients with either abscess or perforation who underwent surgery if they were female, age ≥65, higher comorbidity, were admitted urgently, underwent peritoneal lavage, or had a post-procedural complication.

CONCLUSIONS

Patients with perforated diverticular disease had substantial associated inpatient mortality compared to those with uncomplicated diverticulitis. This increased risk may be associated with performance of peritoneal lavage or because of a delay to procedural intervention.

The Indications for and Timing of Surgery for Diverticular Disease

BACKGROUND

Diverticular disease is one of the more common abdominal disorders. In 2016, approximately 130 000 patients received inpatient treatment for diverticular disease in Germany. The disease has a number of subtypes, each of which has an appropriate treatment. In this article, we present the current surgical indications and optimal timing of surgery for diverticular disease.

METHODS

This review is based on publications that were retrieved by an extensive, selective search in Medline and the Cochrane Library (1998-2018) for studies and guidelines with information on the indications for surgery in diverticular disease.

RESULTS

Studies of evidence grades 2 to 4 were available. Patients receiving a diagnosis of freely perforated diverticulitis and peritonitis (Classification of Diverticular Disease [CDD] type 2c) should be operated on at once. Covered perforated diverticulitis with a macroabscess (>1 cm, CDD type 2b) may be an indication for elective surgery after successful conservative treatment. New evidence from a randomized, controlled trial suggests that elective surgery should also be considered for patients with chronic recurrent diverticulitis (CDD type 3b). The decisive factor in such cases is the impairment of the quality of life for the individual patient. Elective surgery is indicated in chronic recurrent diverticulitis with complications (fistulae, stenoses). Asymptomatic diverticulosis (CDD type 0) and uncomplicated diverticulitis (CDD type 1) are not surgical indications. Likewise, in diverticular hemorrhage (CDD type 4), surgery is only indicated in exceptional cases, when conservative treatment fails.

CONCLUSION

The surgical indication and the proper timing of surgery depend on the type of disease that is present. Future studies should more thoroughly investigate the effect of surgery on the quality of life in patients with the various types of diverticular disease.

Operative timing is associated with increased morbidity and mortality in patients undergoing emergency general surgery: a multisite study of emergency general services in a single academic network

Background

Despite the widespread implementation of the acute care surgery (ACS) model, limited access to operating room time represents a barrier to the optimal delivery of emergency general surgery (EGS) care. The objective of this study was to describe the effect of operative timing on outcomes in EGS in a network of teaching hospitals.

Methods

We conducted a retrospective review of EGS operations performed at 3 teaching hospitals in a single academic network. Time of operation was categorized as daytime (8 am to 5 pm), after hours (5 pm to 11 pm) or overnight (11 pm to 8 am). Time to operation was calculated as the interval from admission to operative start time and categorized as less than 24 hours, 24-72 hours and greater than 72 hours.

Results

After we excluded nonindex cases, trauma cases and cases occurring more than 5 days after admission, 1505 EGS cases were included. We found that 39.0% of operations were performed in the daytime, 46.3% after hours and 14.8% overnight. In terms of time to operation, 52.3% of operations were performed within 24 hours of admission, 33.4% in 24-72 hours and 14.3% in more than 72 hours. The overall complication rate was 20.6% (310 patients) and the overall mortality rate was 3.8% (57 patients). After multivariable analysis, time to operation more than 72 hours after admission was independently associated with increased odds of morbidity (odds ratio [OR] 1.64, 95% confidence interval [CI] 1.09-2.47), while overnight operating was associated with increased odds of death (OR 3.15, 95% CI 1.29-7.70).

Conclusion

Increasing time from admission to operation and overnight operating were associated with greater morbidity and mortality, respectively, for EGS patients. Strategies to provide timely access to the operating room should be considered to optimize care in an ACS model.

District General Hospital Surgical Capacity and Mortality Trends in Patients with Acute Abdomen in Malawi

BACKGROUND

The burden of emergency general surgery conditions is high in sub-Saharan Africa, and poor access to surgical care leads to poor patient outcomes. We examined the trends in mortality in patients presenting with an acute abdomen to a referral hospital.

METHODS

A retrospective analysis of the prospectively collected Kamuzu Central Hospital Acute Care Surgery database was performed (January 2014 to July 2019). Bivariate analysis was conducted by year of admission. A multivariate Poisson regression was performed to identify predictors of mortality.

RESULTS

During the study, 2509 patients with acute abdomen presented. The majority of patients presenting were transferred from outside hospitals (n = 2097, 83.9%). Mortality was highest in patients with preoperative diagnosis of peritonitis (n = 119, 22.2%), bowel obstruction (n = 214, 18.7%), and volvuli (n = 51, 18.6%). There was no difference in mortality by year, p = 0.1. On multivariate Poisson regression, there was an increased relative risk of mortality with being transferred (RR 1.31, 95% CI 1.12-1.55, p = 0.002), as well as undergoing an operation within 1-2 days (RR 1.48, 95% CI 1.16-1.87, p < 0.001) and >2 days (RR 1.46, 95% CI 1.17-1.82, p = 0.001) after presentation.

CONCLUSION

The majority of patients in our study who presented with an acute abdomen were transferred from district hospitals, which resulted in high mortality due to delays in surgical care. Therefore, the WHO's recommendation that the majority of district hospitals perform the Bellwether procedures does not occur in district hospitals in central Malawi. District hospitals require significant resource investment to reduce transfers needs and patient mortality.

Effect of in-hospital delays on surgical mortality for emergency general surgery conditions at a tertiary hospital in Malawi

Background

In sub‐Saharan Africa, surgical access is limited by an inadequate surgical workforce, lack of infrastructure and decreased care‐seeking by patients. Delays in treatment can result from delayed presentation (pre‐hospital), delays in transfer (intrafacility) or after arrival at the treating centre (in‐hospital delay; IHD). This study evaluated the effect of IHD on mortality among patients undergoing emergency general surgery and identified factors associated with IHD.

Methods

Utilizing Malawi's Kamuzu Central Hospital Emergency General Surgery database, data were collected prospectively from September 2013 to November 2017. Included patients had a diagnosis considered to warrant urgent or emergency intervention for surgery. Bivariable analysis and Poisson regression modelling was done to determine the effect of IHD (more than 24 h) on mortality, and identify factors associated with IHD.

Results

Of 764 included patients, 281 (36·8 per cent) had IHDs. After adjustment, IHD (relative risk (RR) 1·68, 95 per cent c.i. 1·01 to 2·78; P = 0·045), generalized peritonitis (RR 4·49, 1·69 to 11·95; P = 0·005) and gastrointestinal perforation (RR 3·73, 1·25 to 11·08; P = 0·018) were associated with a higher risk of mortality. Female sex (RR 1·33, 1·08 to 1·64; P = 0·007), obtaining any laboratory results (RR 1·58, 1·29 to 1·94; P < 0·001) and night‐time admission (RR 1·59, 1·32 to 1·90; P < 0·001) were associated with an increased risk of IHD after adjustment.

Conclusion

IHDs were associated with increased mortality. Increased staffing levels and operating room availability at tertiary hospitals, especially at night, are needed.

Chronic immunosuppressant use in colorectal cancer patients worsens postoperative morbidity and mortality through septic complications in a propensity-matched analysis

AIM

Chronic immunosuppressant use increases the risk of septic complications after colectomy; however, adverse effects on other organ systems remain poorly understood. The aim of this study was to evaluate the multisystem organ effect(s) of chronic immunosuppressant(s) in colorectal cancer patients.

METHODS

This was a retrospective study. The American College of Surgeons National Surgical Quality Improvement database (2005-2012) was queried. The primary end-points were 30-day mortality and 30-day morbidity after colectomy in patients on chronic immunosuppressant(s) compared to a non-immunosuppressant cohort.

RESULTS

In total, 50 766 patients were identified, with 1203 (2.4%) taking chronic immunosuppressant(s). After propensity matching, 1197 patients in each cohort were evaluated with no differences seen in age, body mass index, male sex, wound classification, emergency case status, the presence of preoperative sepsis or operative time. On outcome analysis, 30-day mortality (5.7% vs 3.4%, P < 0.001) and 30-day overall morbidity (35.4% vs 29.0%, P = 0.001) were higher in patients on chronic immunosuppressant(s). Septic complications (10.6% vs 7.9%, P = 0.02) and surgical site infections (15.3% vs 12.3%, P = 0.03) were elevated with chronic immunosuppressant(s). There were no differences in cardiovascular, pulmonary, renal or neurological complications. Chronic immunosuppressant patients demonstrated longer total hospital stay (11.4 ± 11.7 vs 9.5 ± 9.4 days, P < 0.001) and postoperative length of stay (9.4 ± 9.2 vs 8.1 ± 7.6 days, P < 0.001). The limitation was that this was a retrospective study using a clinical dataset.

CONCLUSION

In this study, immunosuppressant use is associated with worsened infective complications, without contributing to organ-specific complications following colectomy. Significant thought should be given to anastomosis vs stoma creation to possibly prevent worsened morbidity and mortality. Future study is required to determine specific pathways for risk reduction.

Emergency Presentations of Diverticulitis

Acute diverticulitis is a common condition that has been increasing in incidence in the United States. It is associated with increasing age, but the pathophysiology of acute diverticulitis is still being elucidated. It is now believed to have a significant contribution from inflammatory processes rather than being a strictly infectious process. There are still many questions to be answered regarding the optimal management of acute diverticulitis because recent studies have challenged traditional practices, such as the routine use of antibiotics, surgical technique, and dietary restrictions for prevention of recurrence.