Patients Requiring Emergency Laparotomy Research Articles

Utility of the National Emergency Laparotomy Audit prognostic model in predicting outcomes in an Australian health system.

The Royal College of Anaesthetists was commissioned by the United Kingdom Health Quality Partnership to conduct the National Emergency Laparotomy Audit of England and Wales (NELA), to compare outcomes of patients undergoing emergency laparotomy in order to promote quality improvement. Prior to 2016 there were minimal data for emergency laparotomy patients in Australia. The aim of this cohort study was to assess the utility and applicability of the NELA model in a tertiary centre in Western Australia. NELA-related data of patients who underwent emergency laparotomy, between June 2018 and May 2020, were merged with other administrative databases and clinical records. The discriminative ability and calibration of the model were assessed by the area under the receiver operating characteristic (AUROC) curve and calibration plot, respectively. Cox proportional hazards regression was used to assess whether the NELA-predicted risks were an independent predictor of hospital mortality. Of the 502 patients included, 168 (33.5%) patients had a NELA-predicted risk >10%, and of these, 93 (55.4%) were admitted to a critical care unit in a planned fashion immediately after surgery. The NELA model had a good ability to discriminate between survivors and non-survivors (AUROC 0.892, 95% confidence intervals 0.854 to 0.93, P <0.001). However, the model was not perfectly calibrated, with the predicted risks tending to overestimate the observed risks of mortality, especially when the predicted risks were >50%. A high NELA-predicted risk remained significantly associated with mortality after adjusting for other covariates, including sepsis and plasma lactate concentration, suggesting that it is a reliable screening tool for identifying high-risk patients requiring emergency laparotomy.

Radiological Features for Frailty Assessment in Patients Requiring Emergency Laparotomy.

Introduction: As the number of elderly patients requiring surgical intervention rises, it is believed that frailty syndrome has a greater impact on perioperative course than on chronological age. The aim of this study was to evaluate the efficacy of various imaging features for frailty assessment in patients undergoing emergency laparotomy. Methods: The study included all patients that qualified for emergency surgery with preoperative CT scans between 2016 and 2020 in the Second Department of General Surgery. Multiple trauma patients were excluded from the analysis. The modified frailty index and brief geriatric assessment were used in the analysis. CT images were reviewed for the assessment of osteopenia, sarcopenia, sarcopenic obesity, renal volume and abdominal aorta calcification rate. Results: A total of 261 patients were included in the analysis. Multivariate logistic regression identified every next ASA class (OR: 4.161, 95%CI: 1.672–10.355, p = 0.002), intraoperative adverse events (OR: 12.397, 95%CI: 2.166–70.969, p = 0.005) and osteopenia (OR: 4.213, 95%CI: 1.235–14.367, p = 0.022) as a risk factor for 30-day mortality. Our study showed that every next ASA class (OR: 1.952, 95%Cl: 1.171–3.256, p = 0.010) and every point of the BGA score (OR: 1.496, 95%Cl: 1.110–2.016, p = 0.008) are risk factors for major complications. Conclusions: Osteopenia was the best parameter for perioperative mortality risk stratification in patients undergoing emergency surgical intervention. Sarcopenia (measured as psoas muscle area), sarcopenic obesity, aortic calcifications and mean kidney volume do not predict poor outcomes in those patients. None of the radiological markers appeared to be useful for the prediction of perioperative morbidity.

Clinical spectrum and management outcome in gallbladder perforation-a sinister entity: Retrospective study from Sub-Himalayan region of India.

Gallbladder perforation is an infrequent entity seen among surgical patients. Rare occurrence owes to difficulty in diagnosing gallbladder perforations. The aim of the present study was to determine the optimal management strategy that may decrease the morbidity and mortality associated with this potentially life-threatening condition. This was a retrospective study from hospital health records wherein the experience of 40 consecutive patients with gallbladder rupture, either spontaneous or secondary to both benign conditions and malignancy, was noted at a tertiary care hospital over 48 months from February 2017 till January 2021. The etiology, clinical presentation, and treatment given were analysed. Out of 40 patients included, 23 were females and the majority of patients were more than 45 years of age. Twelve patients responded to intravenous antibiotics and analgesics alone while five required an ultrasound-guided pigtail catheter drainage due to non-improving clinical condition. The failure of expectant management led to a delayed laparotomy in seven patients while four patients required emergency laparotomy because of generalized peritonitis. An elective cholecystectomy was offered to 12 patients with cholecystoenteric fistulae after diagnostic laparoscopy in the same admission. Thirty-eight patients were discharged in stable condition and doing well at 30-day follow-up. Gallbladder perforation is seen more commonly in acute calculous cholecystitis compared to other conditions. It is more evident when the treatment of acute calculous cholecystitis is delayed by more than 6-8 weeks. The spectrum of clinical presentation varies from mild pain and vomiting to generalized peritonitis. The patient often requires a step-up approach to control the ongoing sepsis for an improved outcome.

Single Layer versus Double Layer Technique for Intestinal Anastomosis: A Comparative Study

Introduction: Intestinal anastomosis is a surgical procedure executed to ascertain communication between two segments of the intestine, after the removal of pathology affecting the bowel. It depends on factors like anastomosis site, bowel capability and the type of the pathogenesis. Aims: To compare single versus double layer method in terms of time taken for anastomosis, hospital stay, post-operative leak and cost effectiveness. Methods: This is a comparative hospital based study carried out at the department of surgery Nepalgunj Medical College from September 2017 to August 2020. Patients requiring emergency laparotomy with resection and anastomosis of small bowel were included. Patients requiring colonic anastomosis, diversion stoma and multiple anastomoses were excluded. Patients were divided in to two groups- single layer and double layer group. Each group was compared for outcome measures like time taken to construct the anastomosis, hospital stay, post-operative leak and cost of surgery. Results: The total number of patients was 50. The mean age was 45.57±17.42 years for single layer and 48.67±18.16 years for double layer group. Time taken for intestinal anostomosis in single and double layer were 18.28±5.08 and 25.27±6.18 respectively which was statistically significant (p - &lt;0.012). Hospital stay was 10.9±1.43 in single layer and 11.2±1.87 which was statistically not significant (p - &gt;0.342). Similarly, the anastomosis leak was seen in 2 patients in single layer and 3 in double layer. Which was statistically not significant (p - &gt;0.318). While comparing the cost effectiveness single layer technique was cost effective. Conclusion: The single layer anastomosis is a preferable, safe and economic technique in comparison to the conventional double layered anastomosis.

677 Quick, Simple and just as Effective – Comparing PM:L3 Ratio to NELA, P-POSSUM and NSQIP Scores for Emergency Laparotomy

Abstract Aim Multiple tools (NELA, P-POSSUM, ACS-NSQIP) are available to assess mortality risks in patients requiring emergency laparotomy(1–3), but they are time-consuming to perform and have had limited uptake in routine clinical practice in many countries(4). Simpler measures, including psoas muscle:L3 vertebrae (PM:L3) ratio(5,6), may be useful alternates. This measure is quick to perform, requiring no special skills or equipment apart from basic CT viewing software. Method We performed an analysis on all patients in the Hunter Emergency Laparotomy Audit (HELA) database, from January 2016 to December 2017. HELA is a retrospective review of all emergency laparotomy undertaken in a discrete area in NSW, Australia. Patients with an available CT abdomen were included (N = 500/562). A single slice axial CT image at the L3 endplate level was analysed using ImageJ® software to measure the area of L3 and bilateral psoas muscles. This can be done using normal PACS software in routine practice. Results PM:L3 ratios in this cohort have a mean of 1.082 (95%CI 1.042-1.122; range 0.141-3.934). PM:L3 ratio is significantly lower (p &amp;lt; 0.00001) in those patients who did not survive beyond 30 days (mean 0.865 [95% CI 0.746-0.984 ]) and 90 days (mean 0.888 [95%CI 0.768-1.008]) compared to patients that survived these periods (30 day mean 1.106 [95% vs. 1.033-1.179], 90 day mean 1.112 [95% CI 1.070-1.154]) . These associations are similar to those calculated by established risk assessment models. Conclusions PM:L3 ratio is a reliable, quick and easy risk assessment tool to identify high risk patients undergoing emergency laparotomy.

1404 NELA Risk Mortality Scores from Admission to Theatre in Emergency Gastrointestinal Perforation – A Retrospective Cohort Study

Abstract Background Patients with acute abdominal pathology requiring emergency laparotomy who experience a delay to theatre have an increased risk of morbidity, mortality and complications. The aim of this study was to assess delay, from symptom onset to theatre in patients with gastrointestinal perforation and its effect on perioperative risk. Method A single-centre retrospective study was performed in the Leeds Trust Hospitals, UK investigating the NELA database for patients requiring emergency laparotomy for perforated gastrointestinal viscus who presented to the acute surgical unit or emergency department between 1st February 2018 and 31st January 2020. Results 101 patients met the inclusion criteria (47% F and 53% M), mean age 59 [21-91]. 37% of patients’ NELA scores worsened from admission to pre-op (median change of + 5.9% IQR 1.3-11.5]), 14% stayed the same and 49% improved (median change of -4.4%[IQR 0.4-9.1]) 3% had their NELA score documented at the time of consent. 18% did not wait for a CT report or went straight to theatre. Mean time from admission to scan report was 9.3 hours (0.9-22.0). Median time from symptom onset to presentation (2 days [IQR 1-13]) was greater in patients with an Index of Multiple Deprivation Decile of 1-5, (n = 64, median 2 days [IQR 1-6]) compared to those in deciles 6-10, (n = 37, median 1 day[IQR 1-3]), p = 0.097. Conclusions NELA mortality risk score changes from presentation to surgery in patients with acute gastrointestinal perforation requiring emergency laparotomy. There is suggestion that delay in symptom onset to presentation may correlate with Index of Multiple Deprivation Decile.

A COMPARATIVE STUDY OF SUBCUTANEOUS SINGLE CLOSED SUCTION DRAIN VERSUS SIMPLE CLOSURE IN EMERGENCY MIDLINE LAPAROTOMY WOUNDS

Wound healing is major concern after surgical procedure, because of its association with quality of life and morbidity of patients. Infections that occur in the wound created by an invasive surgical procedure are generally referred to as Surgical Site Infections (SSIs).. Patients requiring Emergency laparotomy procedure has increased risk of surgical site infection and delayed wound healing. Complications following the closure of abdominal layers after correcting the pathology and peritoneal washings are surgical site infections, wound dehiscence, burst abdomen, wound seroma and wound hematoma. Negative suction in the subcutaneous plane decreases infection by removal of serum or debris and by elimination of dead space in the plane. This study is to compare the subcutaneous single closed suction drain and conventional simple closure of skin and subcutaneous tissue in emergency laparotomy cases.

O20 Quick, simple and just as effective—comparing pm: L3 ratio to NELA, P-POSSUM and NSQIP scores in assessing mortality risk for emergency laparotomy

Abstract Introduction Multiple tools (NELA, P-POSSUM, ACS-NSQIP) are available to assess mortality risks in patients requiring emergency laparotomy(1–3), but they are time-consuming to perform and have had limited uptake in routine clinical practice in many countries(4). Simpler measures, including psoas muscle: L3 vertebrae (PM: L3) ratio(5,6), may be useful alternates. This measure is quick to perform, requiring no special skills or equipment apart from basic CT viewing software. Method We performed an analysis on all patients in the Hunter Emergency Laparotomy Audit (HELA) database, from January 2016 to December 2017. HELA is a retrospective review of all emergency laparotomy undertaken in a discrete area in NSW, Australia. Patients with an available CT abdomen were included (N = 500/562). A single slice axial CT image at the L3 endplate level was analysed using ImageJ® software to measure the area of L3 and bilateral psoas muscles. This can be done using normal PACS software in routine practice. Result PM: L3 ratios in this cohort have a mean of 1.082 (95%CI 1.042–1.122; range 0.141–3.934). PM: L3 ratio is significantly lower (P &amp;lt; 0.00001) in those patients who did not survive beyond 30 days (mean 0.865 [95% CI 0.746–0.984]) and 90 days (mean 0.888 [95%CI 0.768–1.008]) compared to patients that survived these periods (30 day mean 1.106 [95% vs. 1.033–1.179], 90 day mean 1.112 [95% CI 1.070–1.154]). These associations are similar to those calculated by established risk assessment models. Conclusion PM: L3 ratio is a reliable, quick and easy risk assessment tool to identify high risk patients undergoing emergency laparotomy. Take-home Message PM: L3 ratio is a reliable, quick and easy risk assessment tool to identify high risk patients undergoing emergency laparotomy. It is comparable to NELA, P-POSSUM and ACS-NSQIP.

Sustaining better care for patients undergoing emergency laparotomy

Emergency laparotomy is associated with high mortality. Implementation of an evidence-based care bundle has been shown to improve patient outcomes. A quality improvement project to implement a six-component care bundle was undertaken between July 2015 and May 2018. As part of this project, we worked with 27 hospitals in the Emergency Laparotomy Collaborative. Previous pilot implementation of the same bundle in our hospital between December 2012 and July 2013 had shown marked improvement, maintained until April 2014, but then deterioration. Understanding the reasons for this deterioration informed our work to re-implement the bundle and sustain improvement. A cohort of 930 consecutive patients requiring emergency laparotomy between October 2014 and April 2019 were included. Baseline data were collected between October 2014 and June 2015, and the bundle was re-implemented in July 2015. Thirty-day mortality decreased from 11% in the baseline group to 7.3% after bundle implementation. Hospital length of stay decreased from 19.5 to 17.9days. Full bundle compliance improved from <60% to >80% for all patients, with improvement in application of all individual bundle components. This study provides further evidence that outcomes for high-risk surgical patients can be improved with an evidence-based care bundle, but attention must be paid to maintaining bundle compliance. Issues around sustaining improvement must be considered from project initiation.

Pediatric Abdominal Tuberculosis in Singapore: A 10-Year Retrospective Series.

Background. Tuberculosis (TB) remains a major cause of mortality and morbidity globally. Pediatric patients are more likely to develop severe disease. Abdominal TB is a rare manifestation of pediatric TB and can present with chronic and nonspecific abdominal symptoms. This study examines the clinical profile of pediatric patients with abdominal TB and treatment outcomes. Method. A retrospective study of patients admitted to a tertiary pediatric hospital in Singapore over 10 years. Clinical characteristics and outcomes were examined. Results. There were 3 male and 3 female patients with mean age of 11.3 years. Household contacts were traced in 3 cases. The most common presenting symptoms were fever, weight loss, and abdominal symptoms such as diarrhea, vomiting, and loss of appetite. Inflammatory markers were raised with mean C-reactive protein (CRP) and erythrocyte sedimentation (ESR) rate at 70.9 mg/L and 90 mm/h respectively. Abdominal imaging showed abnormalities such as splenic foci and thickened bowel wall with significant intraabdominal lymphadenopathy. Mycobacterium tuberculosis was isolated from stool, rectal swabs and intra-adominal specimens. Two patients underwent excisional biopsy of lymph node to obtain diagnosis. Two patients required emergency laparotomy and 1 patient received esophagogastroduodenoscopy and colonoscopy. Four out of the 6 patients had pulmonary involvement. Conclusion. Abdominal TB should be a differential diagnosis in children with chronic abdominal symptoms for at least 8 weeks with anemia, raised ESR and CRP. The gold standard for diagnosis still remains as positive microbiological culture. However, abdominal imaging studies are also vital in obtaining further supportive evidence for chronic infection.

Increased Morbidity and Mortality of Emergency Laparotomy in Elderly Patients.

There is an increasing incidence of elderly patients requiring emergency laparotomy. Our study compares the outcomes of elderly patients undergoing emergency laparotomy against the outcomes of non-elderly patients. Patients who underwent emergency laparotomy between 2015 and 2017 from the National University Hospital, Singapore, were included. Apart from demographic data, indication of surgery and surgical procedure performed were collected. Prospectively collected nutritional scores were evaluated. Outcome measures included duration of surgery, length of ICU and total hospital stay, post-operative complications, and mortality indices. We performed multivariate Cox regression analysis to determine the contribution of various risk factors towards overall survival following emergency laparotomy. A total of 170 emergency laparotomies were performed. Compared to non-elderly patients, elderly patients had a significantly longer mean stay in hospital (31.5 vs. 18.6days, p = 0.006) and mean stay in ICU (13.1 vs. 5.3days, p = 0.003). More elderly patients suffered from post-laparotomy complications compared with non-elderly patients (65.8% vs. 37.4%, p < 0.001). 30-day mortality (31.5% vs. 8.8%, p = 0.019) and 1-year mortality (27.9% vs. 14.3%, p = 0.023) were higher in elderly patients compared with non-elderly patients. Interestingly, there was no statistically significant difference between elderly and non-elderly groups in both the global 3-MinNS as well as the global SGA nutritional scores. ASA status (HR 2.61, 95% CI 1.05-6.45, p = 0.038) was an independent risk factor for decreased survival following emergency laparotomy. Notably, while age ≥ 65 demonstrated a significant correlation with survival on univariate analysis (HR 1.03 (1.01-1.05), p = 0.003), this effect was lost following multivariate regression (HR 1.01 (0.453-2.23), p = 0.989). Elderly patients suffer worse morbidity and mortality following emergency laparotomy. This is likely contributed by comorbidities resulting in higher ASA status.

Outcome of trauma-related emergency laparotomies, in an era of far-reaching specialization

BackgroundFar reaching sub-specialization tends to become obligatory for surgeons in most Western countries. It is suggested that exposure of surgeons to emergency laparotomy after trauma is ever declining. Therefore, it can be questioned whether a generalist (i.e., general surgery) with additional differentiation such as the trauma surgeon, will still be needed and can remain sufficiently qualified. This study aimed to evaluate volume trends and outcomes of emergency laparotomies in trauma.MethodsA retrospective cohort study was performed in the University Medical Center Utrecht between January 2008 and January 2018, in which all patients who underwent an emergency laparotomy for trauma were included. Collected data were demographics, trauma-related characteristics, and number of (planned and unplanned) laparotomies with their indications. Primary outcome was in-hospital mortality; secondary outcomes were complications, length of ICU, and overall hospital stay.ResultsA total of 268 index emergency laparotomies were evaluated. Total number of patients who presented with an abdominal AIS > 2 remained constant over the past 10 years, as did the percentage of patients that required an emergency laparotomy. Most were polytrauma patients with a mean ISS = 27.5 (SD ± 14.9). The most frequent indication for laparotomy was hemodynamic instability or ongoing blood loss (44%).Unplanned relaparotomies occurred in 21% of the patients, mostly due to relapse of bleeding. Other complications were anastomotic leakage (8.6%), intestinal leakage after bowel contusion (4%). In addition, an incisional hernia was found in 6.3%. Mortality rate was 16.7%, mostly due to neurologic origin (42%). Average length of stay was 16 days with an ICU stay of 5 days.ConclusionThis study shows a persistent number of patients requiring emergency laparotomy after (blunt) abdominal trauma over 10 years in a European trauma center. When performed by a dedicated trauma team, this results in acceptable mortality and complication rates in this severely injured population.

Evaluation of the Collaborative Use of an Evidence-Based Care Bundle in Emergency Laparotomy

Patients undergoing emergency laparotomy have high mortality, but few studies exist to improve outcomes for these patients. To assess whether a collaborative approach to implement a 6-point care bundle is associated with reduction in mortality and length of stay and improvement in the delivery of standards of care across a group of hospitals. The Emergency Laparotomy Collaborative (ELC) was a UK-based prospective quality improvement study of the implementation of a care bundle provided to patients requiring emergency laparotomy between October 1, 2015, and September 30, 2017. Participants were 28 National Health Service hospitals and emergency surgical patients who were treated at these hospitals and whose data were entered into the National Emergency Laparotomy Audit (NELA) database. Post-ELC implementation outcomes were compared with baseline data from July 1, 2014, to September 30, 2015. Data entry and collection were performed through the NELA. A 6-point, evidence-based care bundle was used. The bundle included prompt measurement of blood lactate levels, early review and treatment for sepsis, transfer to the operating room within defined time goals after the decision to operate, use of goal-directed fluid therapy, postoperative admission to an intensive care unit, and multidisciplinary involvement of senior clinicians in the decision and delivery of perioperative care. Change management and leadership coaching were provided to ELC leadership teams. Primary outcomes were in-hospital mortality, both crude and Portsmouth Physiological and Operative Severity Score for the enumeration of Mortality and morbidity (P-POSSUM) risk-adjusted, and length of stay. Secondary outcomes were the changes after implementation of the separate metrics in the care bundle. A total of 28 hospitals participated in the ELC and completed the project. The baseline group included 5562 patients (2937 female [52.8%] and a mean [range] age of 65.3 [18.0-114.0] years), whereas the post-ELC group had 9247 patients (4911 female [53.1%] and a mean [range] age of 65.0 [18.0-99.0] years). Unadjusted mortality rate decreased from 9.8% at baseline to 8.3% in year 2 of the project, and so did risk-adjusted mortality from a baseline of 5.3% to 4.5% post-ELC. Mean length of stay decreased from 20.1 days during year 1 to 18.9 days during year 2. Significant changes in 5 of the 6 metrics in the care bundle were achieved. A collaborative approach using a quality improvement methodology and a care bundle appeared to be effective in reducing mortality and length of stay in emergency laparotomy, suggesting that hospitals should adopt such an approach to see better patient outcomes and care delivery performance.

Blunt Abdominal Trauma in a European Trauma Setting: Need for Complex or Non-Complex Skills in Emergency Laparotomy.

Blunt abdominal trauma can lead to substantial organ injury and hemorrhage necessitating open abdominal surgery. Currently, the trend in surgeon training is shifting away from general surgery and the surgical treatment of blunt abdominal trauma patients is often done by sub-specialized surgeons. The aim of this study was to identify what emergency procedures are needed after blunt abdominal trauma and whether they can be performed with the skill set of a general surgeon. The records of blunt abdominal trauma patients requiring emergency laparotomy (n = 100) over the period 2006-2016 (Helsinki University Hospital Trauma Registry) were reviewed. The organ injuries and the complexity of the procedures were evaluated. A total of 89 patients (no need for complex skills, NCS) were treated with the skill set of general surgeons while 11 patients required complex skills. Complex skills patients were more severely injured (New Injury Severity Score 56.4 vs 35.9, p < 0.001) and had a lower systolic blood pressure (mean: 89 vs 112, p = 0.044) and higher mean shock index (heart rate/systolic blood pressure: 1.43 vs 0.95, p = 0.012) on admission compared with NCS patients. The top three NCS procedures were splenectomy (n = 33), bowel repair (n = 31), and urinary bladder repair (n = 16). In patients requiring a complex procedure (CS), the bleeding site was the liver (n = 7) or a major blood vessel (n = 4). The majority of patients requiring emergency laparotomy can be managed with the skills of a general surgeon. Non-responder blunt abdominal trauma patients with positive ultrasound are highly likely to require complex skills. The future training of surgeons should concentrate on NCS procedures while at the same time recognizing those injuries requiring complex skills.

Thirty-day mortality in patients undergoing laparotomy for small bowel obstruction

Small bowel obstruction (SBO) is a common indication for emergency laparotomy. There are currently variations in the timing of surgery for patients with SBO and limited evidence on whether delayed surgery affects outcomes. The aim of this study was to evaluate the impact of time to operation on 30-day mortality in patients requiring emergency laparotomy for SBO. Data were collected from the National Emergency Laparotomy Audit (NELA) on all patients aged 18 years or older who underwent emergency laparotomy for all forms of SBO between December 2013 and November 2015. The primary outcome measure was 30-day mortality, with date of death obtained from the Office for National Statistics. Patients were grouped according to the time from admission to surgery (less than 24 h, 24-72 h and more than 72 h). A multilevel logistic regression model was used to explore the impact of patient factors, primarily delay to surgery, on 30-day mortality. Some 9991 patients underwent emergency laparotomy requiring adhesiolysis or small bowel resection for SBO. The overall mortality rate was 7·2 per cent (722 patients). Within each time group, 30-day mortality rates were significantly worse with increasing age, ASA grade, Portsmouth POSSUM score and level of contamination. Patients undergoing emergency laparotomy more than 72 h after admission had a significantly higher risk-adjusted 30-day mortality rate (odds ratio 1·39, 95 per cent c.i. 1·09 to 1·76). In patients who require an emergency laparotomy with adhesiolysis or resection for SBO, a delay to surgery of more than 72 h is associated with a higher 30-day postoperative mortality rate.

Continuous Spinal Anaesthesia (CSA) for Emergency Laparotomy in High-Risk Elderly patients: Technique and Outcomes of a Prospective Service Evaluation

Continuous Spinal Anaesthesia is a recognized technique for providing anaesthesia for various surgical procedures. It may be an alternative to general anaesthesia in high-risk elderly patients requiring emergency laparotomy. The objective was to evaluate the benefits of continuous spinal anaesthesia in providing effective anaesthesia for emergency laparotomy, in enhancing recovery after major abdominal surgery and in reducing length of stay in the intensive care unit in high-risk elderly patients. Prospective service evaluation was performed at a tertiary care university hospital. High-risk elderly patients were offered both general anaesthesia and continuous spinal anaesthesia. An 18-gauge macro catheter was inserted into the intrathecal space through a 16-gauge Tuohy needle. Sedation was maintained with remifentanil. Prophylactic anti-emetics were administered. Blood pressure was maintained with an infusion of metaraminol. Over a 27-month period, 25 high risk elderly patients were offered continuous spinal anaesthesia and general anaesthesia for emergency laparotomy. Twenty-one patients opted for continuous spinal anaesthesia. Three patients required conversion to general anaesthesia. In the remaining 18 patients, continuous spinal anaesthesia provided adequate anaesthesia for major bowel surgery. Mean length of stay in level 2 care was 1.6 days. 30-day mortality was 14%. None of the patients reported post dural puncture headache. There were no neurological complications. Emergency laparotomy carries well-recognised intra and postoperative risks and in the elderly cohort, these risks are significant and probably life threatening. Continuous spinal anaesthesia is a well-established technique that may offer some reduction of both intra and postoperative risks with an improved immediate recovery from major emergency surgery.

Prevalence and predictive factors of preoperative hypomagnesaemia among adult surgical patients in a large tertiary hospital in Ghana.

BackgroundMagnesium is the second most abundant intracellular cation and a co-factor in several reactions involved in the formation and usage of adenosine triphosphate and nucleic acid synthesis. Magnesium deficiency may be as high as 65 % in patients admitted to a medical Intensive Care Unit (ICU). Significant and potentially fatal conditions have been attributed to hypomagnesaemia and it has also been associated with poor prognosis and increased mortality in the critically ill. The study aimed to determine the prevalence and identify the predictive factors of preoperative hypomagnesaemia in adult surgical patients who require an emergency laparotomy.MethodsThis was a hospital based prospective study conducted at the Korle-Bu teaching hospital. General surgical patients between the ages of eighteen and seventy years with a preoperative diagnosis which required emergency laparotomy for management were consecutively enrolled into the study. A total of 102 patients were enrolled in the study. Preoperative total serum magnesium and serum potassium were determined.Data was summarised utilising simple descriptive statistics (i.e., proportions, ratios and percentages). The Chi-square test was used to determine significant differences or associations between categorical variables, Pearson’s correlation coefficient was used to determine the relationship between continuous variables and predictive factors were determined by multiple regression. Analysis was done in SPSS version 16.ResultsThe mean serum total magnesium and potassium were 0.66 ± 0.20 mmol/L and 3.79 ± 0.65 mmol/L respectively. The prevalence of preoperative hypomagnesaemia was found to be 68.0 %. Multiple logistic regression found only hypokalaemia to be a predictive factor (p-value of 0.001, odd’s ratio of 9.21 and a confidence interval of 2.42–35.09).ConclusionThe prevalence of preoperative hypomagnesaemia was high (68.0 %) with hypokalaemia the only predictive factor. Hypokalaemic patients requiring emergency laparotomy are nine times more likely to develop hypomagnesaemia as compared to patients who were not hypokalaemic.

OC-046 5 years on: development of leicester’s out of hours bleeder service

Introduction University Hospitals of Leicester (UHL) NHS Trust has been offering a comprehensive out of hour (OOH) endoscopy service for almost 10 years. In the wake of rising demands on in-patient endoscopy services we introduced a Consultant led and Gastro-intestinal registrar supported weekday in-reach service in July 2013, with a morning visit to the acute receiving medical units and a daily in-patient emergency list. Our study looked at the effect of this on OOH endoscopy volume, call outs and therapeutic interventions. Method To compare our data with our previous data set we analysed 6 month periods of OOH data from August to January of each year [2011–15]. Activity was collated by reviewing endoscopy reports [Unisoft reporting tool), separate OOH record books and daily spreadsheet activity returns. We looked at indication and timing of procedures, endoscopic findings, interventions and outcomes. Results 640 procedures were performed during the study period. The introduction of an in-reach service initially resulted in reduced daytime weekend activity but one-year later weekend activity was back to baseline. Although there was an apparent increase in ‘true OOH calls’, i.e. 5 pm until 9 am over our 5 year period the absolute numbers remain small and are in fact not different from our previous study, with approximately one emergency procedure per week. There was a 15.9% rise in appropriate referrals as per UHL criteria. Endoscopic findings of varices and variceal bleeding increased by approximately 3.5-fold. There was also a 3.5-fold increase in the proportion of endoscopies employing combination therapy and the use of injection mono-therapy halved, a reflection of recent NICE guidance. 1 The number of patients requiring emergency laparotomy or arterial embolisation remained very small [2–4 cases per 6 month interval]. Conclusion The total number of procedures has reduced compared to 2006–2010. 2 This is likely to be the result of better education, change in referral pathways and working patterns. The increase of patients presenting with variceal bleeding reflects a nationwide trend. We observed a decrease in the use of adrenaline mon-otherapy and concurrent increase in combination therapy for non-variceal upper gastrointestinal bleeds. Gastroenterology units need to review and re-invent their in-patient and OOH work pattern on a regular basis to address the increasing demands on inpatient endoscopy services. Disclosure of interest None Declared. References Acute upper gastrointestinal bleeding:management. NICE Guidance (CG141) June 2012 Ramiah R, Wurm P. Provision of an out-of-hours emergency endoscopy service: the Leicester experience. Frontline Gastroenterol. 2013;4:288–295

Abdominal Injuries after High Falls: High Incidence and Increased Mortality

Background : Falls from height are a major cause of morbidity and mortality. Injuries to the extremities and head are common. However, little has been reported on abdominal injuries or their treatment. This study aims to assess the abdominal injuries, treatment, and mortality after falls from height.Methods : We searched our hospital’s Trauma registry from January 2004 through December 2007 and identified all patients who fell from five meters or higher. Additional data was extracted from medical records, radiology reports, and operation reports.Results : One hundred and thirty-nine patients (median age 31 years) were included. There were 106 men and 33 women. Forty-one patients had abdominal injuries. Thirteen patients had a retroperitoneal hematoma, eleven had a liver laceration, nine had a kidney laceration, and eight had a spleen laceration. Eleven patients required emergency laparotomy and/or endovascular stenting or coiling to stop the bleeding. Patients with abdominal injuries had a tenfold higher mortality than those without abdominal injuries (19.5% versus 2.0%).Conclusion : Abdominal injuries were common and associated with a tenfold increase in mortality.

Is Computerized Tomography Useful in Identifying Abdominal Catastrophes in Patients Presenting with Peritonitis?

Peritonitis is a significant source of morbidity and mortality in patients on peritoneal dialysis (PD). Symptoms may persist, requiring an emergency laparotomy. Although increasingly used, we find that, in PD patients, abdominal computerized tomography (CT) is ineffective in determining significant pathology. This study was undertaken to assess the diagnostic utility of CT for the identification of intra-abdominal collections in PD patients presenting with peritonitis. A retrospective chart review was undertaken of all patients that underwent abdominal CT scanning in the context of severe PD peritonitis in the past 2 years. All of these patients had at least one CT scan preoperatively. 133 patients presented with PD peritonitis; 19 patients had a contrast CT procedure (12 females, 7 males). Average age was 59.2 years; mean duration on PD was 43.8 months. 13 of 19 patients had gram-negative bacillary peritonitis, 6 of whom had polymicrobial peritonitis; 4 patients had fungal peritonitis and 2 had Staphylococcus aureus peritonitis. 26 CT scans were done in 19 patients an average of 10 days after presentation. 21 of 26 scans revealed no collections of surgical interest. 12 laparotomies were performed, with an average delay of 10.4 days from presentation to laparotomy. Of the 12 laparotomies, 6 found a drainable collection not seen on CT. Seven of the 19 patients died (37%) and no patient was able to return to PD. PD patients requiring emergency laparotomy following PD peritonitis have a high mortality rate. A negative abdominal CT in the setting of ongoing symptoms should not be taken as reassuring, nor should it delay proceeding to emergency laparotomy.