Determining a multidisciplinary intraoperative strategy in emergency surgery for bowel obstruction and its impact on outcomes.

PURPOSE: Bowel obstruction accounts for around 50% of all emergency laparotomies. A multidisciplinary (MDT) standardized intraoperative model was applied (definitive, palliative, or damage control surgery) to identify patients suitable for a one-step, definitive surgical procedure favoring anastomosis over stoma, when undergoing surgery for bowel obstruction. The objective was to present mortality according to the strategy applied and to compare the rate of laparoscopic interventions and stoma creations to a historic cohort in surgery for bowel obstruction. METHODS: In a retrospective cohort study, we included patients undergoing emergency surgery for bowel obstruction during a 1-year period at two Copenhagen University Hospitals (2019 and 2021). The MDT model consisted of a 30- and 60-min time-out with variables such as functional and hemodynamic status, presence of malignancy, and surgical capabilities (lap/open). Pre-, intra-, and postoperative data were collected to investigate associations to postoperative complications and mortality. Stoma creation rates and laparoscopies were compared to a historic cohort (2009-2013). RESULTS: Three hundred sixty-nine patients underwent surgery for bowel obstruction. Intraoperative surgical strategy was definitive in 77.0%, palliative in 22.5%, and damage control surgery in 0.5%. Thirty-day mortality was significantly lower in the definitive patient population (4.6%) compared to the palliative population (21.7%) (p < 0.000). Compared to the historic cohort, laparoscopic surgery for bowel obstruction increased from 5.0 to 26.4% during the 10-year time span, the rate of stoma placements was reduced from 12.0 to 6.1%, p 0.014, and the 30-day mortality decreased from 12.9 to 4.6%, p < 0.000. CONCLUSION: An intraoperative improvement strategy can address the specific surgical interventions in patients undergoing surgery for bowel obstruction, favoring anastomosis over stoma whenever resection was needed, and help adjust specific postoperative interventions and care pathways in cases of palliative need.

Small bowel anastomosis in emergency surgery.

BACKGROUND: Emergency laparotomy is associated with a high morbidity and mortality rate. The decision on whether to perform an anastomosis or an enterostomy in emergency small bowel resection is guided by surgeon preference alone, and not evidence based. We examined the risks involved in small bowel resection and anastomosis in emergency surgery. METHODS: A retrospective study from 2016 to 2019 in a university hospital in Denmark, including all emergency laparotomies, where small-bowel resections, ileocecal resections, right hemicolectomies and extended right hemicolectomies where performed. Demographics, operative data, anastomosis or enterostomy, as well as postoperative complications were recorded. Primary outcome was the rate of bowel anastomosis. Secondary outcomes were the anastomotic leak rate, mortality and complication rates. RESULTS: During the 3.5-year period, 370 patients underwent emergency bowel resection. Of these 313 (84.6%) received an anastomosis and 57 (15.4%) an enterostomy. The 30-day mortality rate was 12.7% (10.2% in patients with anastomosis and 26.3% in patients with enterostomy). The overall anastomotic leak rate was 1.6%, for small-bowel to colon 3.0% and for small-bowel to small-bowel 0.6%. CONCLUSION: A primary anastomosis is performed in more than eight out of 10 patients in emergency small bowel resections and is associated with a very low rate of anastomotic leak.

Small bowel anastomosis in peritonitis compared to enterostomy formation: a systematic review.

PURPOSE: Anastomotic leakage after small bowel resection in emergency laparotomy is a severe complication. A consensus on the risk factors for anastomotic leakage has not been established, and it is still unclear if peritonitis is a risk factor. This systematic review aimed to evaluate if an entero-entero/entero-colonic anastomosis is safe in patients with peritonitis undergoing abdominal acute care surgery. METHODS: A systematic literature review based on PRISMA guidelines was performed, searching the databases Pubmed/MEDLINE, Cochrane Library, and Science Direct for studies of anastomosis in peritonitis. Patients with an anastomosis after non-planned small bowel resection (ischemia, perforation, or strangulation), including secondary peritonitis, were included. Elective laparotomies and colo-colonic anastomoses were excluded. Due to the etiology, traumatic perforation, in-vitro, and animal studies were excluded. RESULTS: This review identified 26 studies of small-bowel anastomosis in peritonitis with a total of 2807 patients. This population included a total of 889 small-bowel/right colonic resections with anastomoses, and 242 enterostomies. All studies, except two, were retrospective reviews or case series. The overall mortality rates were 0-20% and anastomotic leakage rates 0-36%. After performing a risk of bias evaluation there was no basis for conducting a meta-analysis. The quality of evidence was rated as low. CONCLUSION: There was no evidence to refute performing a primary small-bowel anastomosis in acute laparotomy with peritonitis. There is currently insufficient evidence to label peritonitis as a risk factor for anastomotic leakage in acute care laparotomy with small-bowel resection. TRIAL REGISTRATION: The review was registered with the PROSPERO register of systematic reviews on 14/07/2020 with the ID: CRD42020168670.

Intraoperative Surgical Strategy in Abdominal Emergency Surgery.

BACKGROUND: Emergency abdominal surgery is associated with a high rate of postoperative complications and death. Pre- and immediate postoperative bundle-care strategies have improved outcome, but so far, no standardized intraoperative strategies have been proposed. We introduced a quality improvement model of specific intra- and postoperative strategies for the heterogenous group of patients undergoing emergency abdominal surgery. The objective was to evaluate a quality improvement strategy, using an intraoperative, multidisciplinary time-out model in emergency abdominal surgery to apply one of three surgical strategies; definitive-palliative-or damage control surgery. METHODS: All patients scheduled for any gastrointestinal emergency procedure were stratified dynamically according to standardized criteria for performing definitive-palliative-or damage control surgery. Pre- intra- and postoperative data were collected according to the intraoperative strategy applied. Postoperative complications were displayed according to the Clavien-Dindo-score and the CCI (Comprehensive Complication Index). 30-90-day- and 1-year mortality was presented. RESULTS: We included 436 consecutive patients undergoing emergency laparotomy or laparoscopy in 2019. Intraoperative strategy was definitive in 326(75%)-palliative in 90(21%) and damage control approach in 20(4%) patients. CCI was 21(0,45), 30(17,54) and 78(54,100) in the definitive-, the palliative-, and the damage control group, respectively. 30-day mortality was; 11.7%, 26.7% and 30%, and the 1-year mortality was 16.9%, 56.7% and 40% in the definitive- the palliative- and the damage control group, respectively. CONCLUSIONS: We present a multidisciplinary, intraoperative decision-making standard as a potential quality improvement tool of ensuring individualized intra- and postoperative treatment for every emergency surgical patient and for future research-protocols.

"Sarcopenia is associated with increased risk of burst abdomen after emergency midline laparotomy: a matched case-control study".

PURPOSE: Burst abdomen is a serious complication commonly observed after emergency midline laparotomy. Sarcopenia has been associated with increased morbidity and mortality after abdominal surgery. This single-center, retrospective, matched case-control study aimed to investigate the association between sarcopenia and burst abdomen in patients undergoing emergency midline laparotomy. METHODS: Patients who had burst abdomen after emergency midline laparotomy were matched 1:4 with controls based on age and sex. Abdominal wall closure was standardized in the study period with the small bites, small stitches technique. CT assessed psoas cross-sectional area was used as a surrogate measure of sarcopenia. Sarcopenia was defined as the sex-specific lowest quartile of psoas cross-sectional area adjusted for body surface area. The primary outcome was the incidence rate of sarcopenia amongst cases and controls. Secondary outcomes were risk factors for burst abdomen and death that were identified using multivariate logistic regression analysis. RESULTS: 67 cases were matched to 268 controls during May 2016-December 2019. BMI > 30 kg/m2, liver cirrhosis, smoking, high ASA score and peritonitis were more frequently observed among cases. Multivariate analysis revealed that sarcopenia (odds ratio (OR) 2.3, p = 0.01), active smoking (OR 2.3, p = 0.006) and liver cirrhosis (OR 3.7, p = 0.042) were significantly associated with burst abdomen. ASA score ≥ 3 (OR 5.5, p = 0.001) and ongoing malignant disease (OR 3.2, p = 0.001) were significantly associated with increased 90-day mortality. CONCLUSION: Sarcopenia is associated with increased risk of burst abdomen after midline laparotomy. Prospective trials are needed.

Associations between malignancy and cardiovascular complications following emergency laparotomy - A retrospective cohort study.

BACKGROUND: Systemic inflammation in patients with malignant disease has been associated with increased risk of cardiovascular events. The pro-inflammatory perturbations following surgical trauma may further promote adverse perioperative cardiovascular events and increase the risk of patients with cancer undergoing major surgery. Our objective was to estimate the association between malignant disease and postoperative cardiovascular complications. Secondarily, we aimed to identify risk factors for postoperative cardiovascular complications. METHODS: We conducted a retrospective cohort study of all patients ≥18 years undergoing emergency laparotomy between 2010 and 2016 at Department of Surgery, Zealand University Hospital, Denmark. Complications were graded according to Clavien-Dindo classification of surgical complications. Multivariate logistic regression analysis was performed to estimate association between malignant disease and cardiovascular complications within 30 days of emergency laparotomy and to identify other risk factors for postoperative cardiovascular complications after emergency laparotomy. RESULTS: We identified 1188 patients ≥18 years undergoing emergency laparotomy between 2010 and 2016, in which 254 (21%) had malignant disease. Within 30 days of emergency laparotomy, 89 (9.5%) of patients without malignancy died, as compared with 45 (18%) of patients with malignancy (p < 0.001). Cardiovascular death occurred in 17 (1.8%) and 5 (2.0%) patients in the non-malignant and malignant group, respectively. Severe cardiovascular complication graded CD 3-5 occurred in 93 (8%) of all patients within 30 days of emergency laparotomy. We found no association between malignancy and postoperative cardiovascular complications in patients undergoing emergency surgery (OR 0.8, 95% CI; 0.4, 1.5). Increasing age and ASA physical status classification system (ASA) score ≥ III were the only independent risk factors of cardiovascular complications graded CD 3-5. CONCLUSIONS: Malignancy was not associated with postoperative cardiovascular complications after emergency laparotomy. Risk factors for major cardiovascular complications after emergency abdominal surgery were age and ASA score ≥ III.

Standardized Surgical Primary Repair for Burst Abdomen Reduces the Risk of Fascial Redehiscence.

OBJECTIVE: To determine whether a standardized surgical primary repair for burst abdomen could lower the rate of fascial redehiscence. SUMMARY BACKGROUND DATA: Burst abdomen after midline laparotomy is associated with increased morbidity and mortality. The surgical treatment is poorly investigated but known for a poor outcome with high rates of re-evisceration (redehiscence). METHODS: This study was a single-center, interventional study comparing rates of fascial redehiscence after surgery for burst abdomen in a study cohort (July 2014-April 2019) to a historical cohort (January 2009-December 2013). A standardized surgical strategy was introduced for burst abdomen: The abdominal wall was closed using a slowly absorbable running suture in a mass closure technique with "large bites" of 3 cm in "small steps" of 5 mm, in an approximate wound-suture ratio of 1:10. Demographics, comorbidities, preceding type of surgery, and surgical technique were registered. The primary outcome was fascial redehiscence. The secondary outcome was 30- and 90-day mortality. RESULTS: The study included 186 patients with burst abdomen (92 patients in the historical cohort vs 94 patients in the study cohort). No difference in sex, performance status, comorbidity, or body mass index was found. In 77% of the historical cohort and 80% of the study cohort, burst abdomen occurred after emergency laparotomy (P = 0.664). The rate of redehiscence was reduced from 13% (12/92 patients) in the historical cohort to 4% (4/94 patients) in the study cohort (P = 0.033). There was no difference in 30- or 90-day mortality. CONCLUSION: Standardized surgical primary repair for burst abdomen reduced the rate of fascial redehiscence.

[Closure of an emergency midline laparotomy].

Closure of an emergency abdominal midline laparotomy is related to potentially serious complications. Main concerns are surgical site infection, wound dehiscence and incisional hernia. In this review, new studies and guidelines are summed up to a set of recommendations applicable to the Danish surgical departments. Surgical strategies concerning primary closure of an emergency laparotomy as well as a strategy towards wound dehiscence are suggested. Suture techniques, negative pressure wound therapy and reinforcement of the abdominal wall with mesh are the topics reviewed.

Anastomotic technique is not associated with leakage rate after right hemicolectomy.

INTRODUCTION: The present study aimed to evaluate the anastomotic leakage rate in relation to anastomotic technique in right hemicolectomy in a single high-volume centre. METHODS: This was a retrospective single-centre study of prospectively collected data of patients undergoing right hemicolectomy or ileocecal resection in an acute or elective setting over a seven-year period in a large University Hospital. Anastomotic leakage, anastomotic technique (hand-sewn versus stapled anastomosis) and potential confounders were registered. The possible confounding risk factors were explored by univariate analysis. Any variables with a p value less-than 0.2 after univariate logistic regression analysis were included in a subsequent multivariate logistic regression analysis. RESULTS: A total of 754 patients had a primary anastomosis performed. In 222 (29%) of the patients, anastomosis was hand-sewn and in 528 (70%) stapled. Overall, 26 patients (3.4%) developed an anastomotic leakage. The anastomotic leakage rate was similar following hand-sewn and stapled anastomoses (3.6% (8/221) versus 3.4% (18/527); p = 0.89). Univariate analyses failed to identify any significant risk factors for anastomotic leakage. A multivariate logistic regression analysis with all mentioned co-variates was performed. None of the included variables were significantly associated with anastomotic leakage. CONCLUSIONS: In the present study, we found no significant difference between hand-sewn versus stapled anastomosis. FUNDING: none. TRIAL REGISTRATION: not relevant.

Resumption of oncological therapy in patients with advanced cancer undergoing explorative laparotomy for bowel obstruction.

INTRODUCTION: Obstruction of the gastrointestinal tract is a frequent surgical emergency experienced by patients with advanced cancers. We aimed to evaluate factors associated with resumption of post-operative chemotherapy in patients with advanced cancer undergoing explorative laparotomy for bowel obstruction. METHODS: This retrospective cohort study was conducted between 2009 and 2013 at Herlev Hospital, Denmark. All patients with advanced cancer were identified from a local electronic database containing all emergency laparotomies. Adult patients with mechanical bowel obstruction were included if they had any kind of cancer and had been under active oncological treatment within the last eight weeks prior to surgery. Demographic, clinical, pre-, and post-operative data were collected and reviewed manually. Multivariate logistic regression analysis was performed to identify predictors for resuming oncological treatment. RESULTS: A total of 76 patients admitted with bowel obstruction and undergoing oncological treatment within eight weeks before surgery were included. Post-operatively, cancer treatment was resumed in 58% of patients. An American Society of Anesthesiologists (ASA) score less-than III (odds ratio = 12.6 (95% confidence interval (CI): 2.9-54.6); p = 0.001) and a performance status less-than 3 (odds ratio = 9.7 (95% CI: 1.4-67.2); p = 0.021) were associated with resuming post-operative cancer treatment. CONCLUSIONS: We found that ASA score and performance status are associated with resumption of cancer treatment post-operatively and should be taken into consideration when considering the treatment strategy for patients with advanced cancer and malignant bowel obstruction. FUNDING: The authors received no financial support for the research, authorship, and/or publication of this article. TRIAL REGISTRATION: not relevant.

Functional performance and 30-day postoperative mortality after emergency laparotomy-a retrospective, multicenter, observational cohort study of 1084 patients.

BACKGROUND: Despite the importance of predicting adverse postoperative outcomes, functional performance status as a proxy for frailty has not been systematically evaluated in emergency abdominal surgery. Our aim was to evaluate if the Eastern Cooperative Oncology Group (ECOG) performance score was independently associated with mortality following high-risk emergency abdominal surgery, in a multicentre, retrospective, observational study of a consecutive cohort. METHODS: All patients aged 18 or above undergoing high-risk emergency laparotomy or laparoscopy from four emergency surgical centres in the Capitol Region of Denmark, from January 1 to December 31, 2012, were included. Demographics, preoperative status, ECOG performance score, mortality, and surgical characteristics were registered. The association of frailty with postoperative mortality was evaluated using multiple regression models. Likelihood ratio test was applied for goodness of fit. RESULTS: In total, 1084 patients were included in the cohort; unadjusted 30-day mortality was 20.2%. ECOG performance score was independently associated with 30-day mortality. Odds ratio for mortality was 1.70 (95% CI (1.0, 2.9)) in patients with ECOG performance score of 1, compared with 5.90 (95% CI (1.8, 19.0)) in patients with ECOG performance score of 4 (p < 0.01). Likelihood ratio test suggests improvement in fit of logistic regression modelling of 30-day postoperative mortality when including ECOG performance score as an explanatory variable. CONCLUSIONS: This study found ECOG performance score to be independently associated with the postoperative 30-day mortality among patients undergoing high-risk emergency laparotomy. The utility of including functional performance in a preoperative risk assessment model of emergency laparotomy should be evaluated.

[Transarterial embolisation for gastrointestinal bleeding caused by an ulcer].

Upper gastrointestinal bleeding caused by an ulcer is a common condition with approximately 1,500 admissions a year. The mortality is roughly 9%, with an increased risk in elderly with multiple comorbidities. First-line treatment is endoscopic double therapy. If haemostasis is not achieved and/or repeated rebleeding occurs, the choice of treatment is transarterial embolisation (TAE) or traditional surgery. TAE has a higher rate of rebleeding than surgery, but the mortality is comparable, and TAE has fewer complications. Prophylactic TAE may reduce the rate of re-intervention in patients, who have a high risk of rebleeding.

Readmission and reoperation rates following negative diagnostic laparoscopy for clinically suspected appendicitis: The "normal" appendix should not be removed - A retrospective cohort study.

BACKGROUND: In cases with clinically suspected appendicitis, there is controversy regarding the decision to remove a macroscopically normal appearing appendix during laparoscopy when no other intra-abdominal pathology is found. The aim of this study was to examine the rate of appendicitis, along with readmission and reoperation rates following diagnostic laparoscopy of clinically suspected appendicitis in patients where the appendix was not removed. METHODS: We performed a retrospective cohort analysis of patients who underwent a diagnostic laparoscopy due to clinical suspicion of appendicitis where no other pathology was found and the appendix was not removed. The study period was from 2008 to 2013 and involved patients from two university hospitals in the Copenhagen area. RESULTS: Of the 271 patients included (81.6% women, median age 27), 56 (20.7%) were readmitted with right iliac fossa pain after a median time of 10 months (range 1-84). Twenty-two patients (8.1%) underwent a new laparoscopic procedure. Appendix was removed in 18 patients, of which only one showed histological signs of inflammation. The median follow-up time was 5.6 years (range 1-109 months). CONCLUSION: There was a low rate of appendicitis after a previous negative diagnostic laparoscopy. Therefore, based on results from the current study, we do not consider that it is necessary to remove a macroscopic normal appendix during laparoscopy for clinically suspected appendicitis. The high readmission rate warrants the need for further investigation or follow-up.

Chronic Pain, Quality of Life and Functional Impairment After Emergency Laparotomy.

BACKGROUND: Emergency laparotomy is a high-risk procedure with increased morbidity and mortality rates. The long-term outcomes are poorly investigated.The aim was to describe the frequency of chronic postsurgical pain (CPSP), pain-related functional impairment, to evaluate the gastrointestinal quality of life (QoL) and identify risk factors for CPSP after emergency laparotomy. METHOD: A questionnaire study was conducted from Copenhagen University Hospital Herlev. Population area: 435.000. Patients undergoing emergency midline laparotomy from May 2009-May 2013 and June 2014-November 2015 were included. The survey consisted of five parts exploring the extent of acute and chronic postsurgical pain. Pain-related functional impairment and quality of life were measured using the activity assessment scale and the gastrointestinal quality of life questionnaire, respectively. Primary outcomes were rates of CPSP and pain-related functional impairment. Gastrointestinal QoL was compared between patients with or without CPSP. Multivariate regression analysis was performed to estimate risk factors for CPSP. RESULTS: The primary emergency laparotomy population consisted of 1573 patients. A total of 605 patients were eligible for inclusion, and 440 patients completed the survey. Response rate: 73%. Median age was 69 years (range 18-95), 56.4% female. Median follow-up was 60 months (IQR 47). 19% (85/440) experienced CPSP and had low gastrointestinal QoL. We identified APSP OR 5.0 95%CI (2.4-10.5), p < 0.01 and age < 60 OR 2.1 95%CI (1.2-3.8), p = 0.01 as independent risk factors for CPSP. 45% (199/440) of all patients experienced moderate-severe functional impairment. CONCLUSION: CPSP (19%) and low gastrointestinal QoL were common after emergency laparotomy and almost every second patient had moderate-severe functional impairment on long-term follow-up.

[Mortality rate after acute laparotomy can be reduced].

Acute abdomen is a common cause of admission to hospital. Emergency laparotomy is associated with a significant morbidity and mortality due to deranged physiology and surgery-induced stress. Damage control laparotomy is on the rise as an operative strategy for the septic abdomen as well as for trauma laparotomy but lacks definition in the non-trauma setting. Principles of perioperative care in elective surgery are currently applied to the emergency abdominal surgery patients and should be further studied in the future to reduce morbidity and mortality.

Adaptive process triage system cannot identify patients with gastrointestinal perforation.

INTRODUCTION: Adaptive process triage (ADAPT) is a triage tool developed to assess the severity and address the priority of emergency patients. In 2009-2011, ADAPT was the most frequently used triage system in Denmark. Until now, no Danish triage system has been evaluated based on a selective group of patients in need of acute abdominal surgery. Gastrointestinal perforation (GIP) is acknowledged as one of the surgical conditions with the highest mortality rates. The aim of this study was to evaluate whether ADAPT can identify patients with GIP. METHODS: All abdominal emergency laparoscopies and laparotomies performed over a one-year period at Herlev Hospital, Denmark, were included. Patient data and triage levels were collected from medical records. We defined patients suspected of less severe surgical illness as green-yellow and patients suspected of severe/life-threatening illness as orange-red. RESULTS: A total of 803 patients with a known triage level were identified: 47% green, 38% yellow, 13% orange and 2% red. Of these patients, 136 were identified with a GIP. The negative predictive value was 83.2% (95% confidence interval: 80.1-85.7), meaning that one out of six abdominal surgery patients triaged as green or yellow had a GIP that was not identified by the triage system. CONCLUSION: ADAPT is incapable of identifying one of the most critically ill patient groups in need of emergency abdominal surgery. FUNDING: none. TRIAL REGISTRATION: HEH-2013-034 I-Suite: 02336.

A Description of Deaths Following Emergency Abdominal Surgery.

OBJECTIVE: Emergency major abdominal surgery carries a high mortality rate. The aim of this present study was to characterize a population of deceased abdominal surgical patients, to examine how many died unexpectedly and how many were subject to treatment limitations. MATERIALS AND METHODS: We included adult emergency abdominal surgical patients who died within 30 days postoperatively. We collected data from January 1, 2013, to December 31, 2014, in a Danish tertiary care hospital (Herlev). RESULTS: A total of 138 patients were included which corresponded to a crude mortality rate of 16.5% in the population. Four percent (5 of 138) of the patients died unexpectedly without any prior signs of deterioration and 46% (65 of 138) experienced a complicated treatment course, 67% of which was treated in the intensive care unit (ICU). The remaining 50% (68 of 138) had treatment limitations, applied pre- or postoperatively, of which 4% were treated in the ICU ward. CONCLUSIONS: In the present study, we found a high number of patients with treatment limitations, offering one explanation to why so relatively few high-risk surgical patients are admitted to the ICU ward. Whether intermediary wards could serve as a viable alternative for these patients, securing a sufficient level of treatment without taking up scarce beds in the intensive care unit, remains an important question for future studies. Furthermore, five patients died unexpectedly, without any clear cause of death, proving that continual strides toward improving the overall process of postoperative care are still demanded.

Reduced Rate of Dehiscence After Implementation of a Standardized Fascial Closure Technique in Patients Undergoing Emergency Laparotomy.

OBJECTIVE: In elective surgery, it is well documented that a midline laparotomy should be closed with a slowly absorbable monofilament suture material in a continuous technique, in a ratio of at least 4 : 1. The evidence concerning the suture material or suturing technique in the emergency setting is lacking. We aimed to investigate whether this technique would reduce the rate of dehiscence. METHODS: A standardized procedure of closing the midline laparotomy by using a "small steps" technique of continuous suturing with a slowly absorbable (polydioxanone) suture material in a wound-suture ratio of minimum 1 : 4 was introduced in June 2014. All patients scheduled for any gastrointestinal emergency midline laparotomy were included until October 2015. Pre-, intra-, and postoperative data were registered. All emergency laparotomies performed from 2009 to 2013 served as reference. Chi-squared tests and multivariate Cox regression analysis were performed. RESULTS: We included 494 patients from 2014 to 2015 and 1079 patients from our historical cohort for comparison. All patients had a midline laparotomy in an emergency setting. The rate of dehiscence was reduced from 6.6% to 3.8%, P = 0.03 comparing year 2009 to 2013 with 2014 to 2015. Factors associated with dehiscence were male gender [hazard ratio (HR) 2.8, 95% confidence interval (95% CI) (1.8-4.4), P < 0.001], performance status ≥3 [HR 2.1, 95% CI (1.2-3.7), P = 0.006], cirrhosis [HR 3.8, 95% CI (1.5-9.5), P = 0.004], and retention sutures [HR 2.8, 95% CI (1.6-4.9), P < 0.000]. The 30-day mortality rate was 18.4% in the standardized group vs 22.4% in 2009 to 2013, P = 0.057 and 90-day mortality 24.2% vs 30.4%, P = 0.008. CONCLUSION: The standardized procedure of closing the midline laparotomy by using a "small steps" technique of continuous suturing with a slowly absorbable (polydioxanone) suture material reduces the rate of fascial dehiscence.

Morbidity and mortality rates after emergency abdominal surgery: an analysis of 4346 patients scheduled for emergency laparotomy or laparoscopy.

PURPOSE: Emergency abdominal surgery results in a high rate of post-operative complications and death. There are limited data describing the emergency surgical population in details. We aimed to give a detailed analyses of complications and mortality in a consecutive group of patients undergoing acute abdominal surgery over a 4-year period. METHODS: This observational study was conducted between 2009 and 2013 at Copenhagen University Hospital Herlev, Denmark. All patients scheduled for emergency laparotomy or laparoscopy were included. Pre-, intra-, and post-operative data were collected from medical records. Complications were registered according to the Clavien-Dindo classification. Cox regression analysis was performed to identify risk factors for mortality. RESULTS: A total of 4,346 patients underwent emergency surgery, of whom 14 % had surgical complications and 23 % medical complications. The overall 30-day mortality was 8 % with 50 % of those in this group over 80 years of age. The 30-day mortality rates were 0.8 % (95 % CI 0.5-1.1) and 17 % (95 % CI 15.5-18.9), respectively, for the laparoscopy and the laparotomy groups. The overall death rate within 24 h of surgery was 21 %. Several risk factors for 30- and 90-day mortality were identified: age, ASA ≥3 (American Society of Anaesthesiologists physical status classification), performance score (Zubroed/WHOclassification), cirrhosis of the liver, chronic nephropathy, several medical conditions, and malignancy. CONCLUSION: Almost one in five patients died after emergency laparotomy, of whom one in five died within 24 h of surgery. Predictors for poor outcome were identified.