Assessing the impact of frailty in elderly patients undergoing emergency laparotomies in Singapore.

Introduction: The global rise in ageing populations poses challenges for healthcare systems. By 2030, Singapore anticipates a quarter of its population to be aged 65 or older. This study addresses the dearth of research on frailty's impact on emergency laparotomy (EL) outcomes in this demographic, emphasising the growing significance of this surgical intervention. Method: Conducted at 2 tertiary centres in Singapore from January to December 2019, a retrospective cohort study examined EL outcomes in patients aged 65 or older. Frailty assessment, using the Clinical Frailty Scale (CFS), was integrated into demographic, diagnostic and procedural analyses. Patient data from Tan Tock Seng Hospital and Khoo Teck Puat Hospital provided a comprehensive view of frailty's role in EL. Results: Among 233 participants, 26% were frail, revealing a higher vulnerability in the geriatric population. Frail individuals exhibited elevated preoperative risk, prolonged ICU stays, and significantly higher 90-day mortality (21.3% versus 6.4%). The study illuminated a nuanced connection between frailty and adverse outcomes, underlining the critical need for robust predictive tools in this context. Conclusion: Frailty emerged as a pivotal factor influencing the postoperative trajectory of older adults undergoing EL in Singapore. The integration of frailty assessment, particularly when combined with established metrics like P-POSSUM, showcased enhanced predictive accuracy. This finding offers valuable insights for shared decision-making and acute surgical unit practices, emphasising the imperative of considering frailty in the management of older patients undergoing emergency laparotomy.

Sustained improved emergency laparotomy outcomes over 3 years after a transdisciplinary perioperative care pathway-A 1:1 propensity score matched study.

BACKGROUND: Emergency laparotomy is associated with high morbidity and significant global health burden. This study aims to compare postoperative outcomes of patients who underwent emergency laparotomy before and after implementation of a emergency laparotomy pathway. METHODS: This is a single-center study of all patients who presented with an acute abdomen and/or conditions requiring emergency laparotomy during pre-emergency laparotomy pathway (retrospective cohort from January 2016 to December 2018) and after the emergency laparotomy pathway (prospective cohort from January 2019 to December 2021). Patients who underwent emergency laparotomy for trauma or vascular surgery were excluded. A 1:1 propensity score matching was performed to address for confounding factors. RESULTS: There were 888 patients (emergency laparotomy pathway, n = 428, and pre-emergency laparotomy pathway, n = 460) in the unmatched cohort. The mean age was 63.0 ± 15.4 years, and 43.8% had predicted mortality >10% using Portsmouth-Physiological and Operative Severity Score for the Enumeration of Mortality and Morbidity. The most common indication for emergency laparotomy was intestinal obstruction (30.5%). Overall incidence rates of major morbidity and 30-day mortality were 16.2% and 3.5%, respectively. There were 736 patients (n = 368 patients per arm) after propensity score matching. Demographic characteristics were comparable after propensity score matching. The emergency laparotomy pathway was associated with more patients assessed by geriatric medicine (odds ratio = 15.22; P < .001), reduced major morbidity (odds ratio = 0.63; P = .024), reduced intra-abdominal collection (odds ratio = 0.39; P = .006), and need for unplanned radiological and/or surgical intervention after index emergency laparotomy (odds ratio = 0.63; P = .024). Length of stay and 30-day mortality were comparable between the emergency laparotomy pathway and pre-emergency laparotomy pathway in both the unmatched and propensity score matched cohort. CONCLUSION: Sustained improved postoperative outcomes were achieved 3 years postimplementation of the emergency laparotomy pathway .

Impact of nationwide COVID-19 lockdown on workload and injury patterns of major trauma cases in a regional trauma centre in Singapore.

Introduction: Singapore instituted lockdown measures from 7 February 2020 to 1 June 2020 in response to the coronavirus disease 2019 (COVID-19) pandemic. Methods: A retrospective analysis of cases from the national trauma registry was carried out comparing the lockdown period (from 7 February 2020 to 1 June 2020) to the pre-lockdown period (from 7 February 2019 to 1 June 2019). Data extracted included the volume of Tier 1 (injury severity score [ISS] >15) and Tier 2 (ISS 9-15) cases and epidemiology. Subgroup analysis was performed for Tier 1 patient outcomes. Results: Trauma volume decreased by 19.5%, with a 32% drop in Tier 1 cases. Road traffic and workplace accidents decreased by 50% (P < 0.01), while interpersonal violence showed an increase of 37.5% (P = 0.34). There was an 18.1% decrease in usage of trauma workflows (P = 0.01), with an increase in time to intervention for Tier 1 patients from 88 to 124 min (P = 0.22). Discharge to community facilities decreased from 31.4% to 17.1% (P < 0.05). There was no increase in inpatient mortality, length of stay in critical care or length of stay overall. Conclusion: There was an overall decrease in major trauma cases during the lockdown period, particularly road traffic accidents and worksite injuries, and a relative increase in interpersonal violence. Redeployment of manpower and hospital resources may have contributed to decreased usage of trauma workflows and community facilities. In the event of further lockdowns, it is necessary to plan for trauma coverage and maintain the use of workflows to facilitate early intervention.

Low skeletal muscle mass predicts poor prognosis of elderly patients after emergency laparotomy: A single Asian institution experience.

INTRODUCTION: Sarcopenia, defined as low skeletal muscle mass and poor muscle function, has been associated with worse postoperative recovery. This study aims to evaluate the significance of low muscle mass in the elderly who require emergency surgeries and the postoperative outcomes. METHOD: Data from the emergency laparotomy database were retrieved from Khoo Teck Puat Hospital, Singapore, between 2016 and 2019. A retrospective analysis was performed on patients aged 65 years and above. Data collected included skeletal muscle index (SMI) on computed tomography scan, length of stay, complications and mortality. Low muscle mass was determined based on 25th percentile values and correlation with previous population studies. RESULTS: A total of 289 patients were included for analysis. Low muscle mass was defined as L3 SMI of <22.09cm2/m2 for females and <33.4cm2/m2 for males, respectively. Seventeen percent of our patients were considered to have significantly low muscle mass. In this group, the length of stay (20.8 versus 16.2 P=0.041), rate of Clavien-Dindo IV complications (18.4% vs 7.5% P=0.035) and 1-year mortality (28.6% vs 14.6%, P=0.03) were higher. Further multivariate analysis showed that patients with low muscle mass had increased mortality within a year (odds ratio 2.16, 95% confidence interval 1.02-4.55, P=0.04). Kaplan-Meier analysis also shows that the 1-year overall survival was significantly lower in patients with low muscle mass. CONCLUSION: Patients with low muscle mass have significantly higher post-surgical complication rates and increased mortality.

Initial emergency laparotomy outcomes following a transdisciplinary perioperative care pathway in Singapore.

AIM: Emergency laparotomy (EL) is a common surgery associated with high morbidity and mortality. An enhanced care pathway incorporates evidence-based care bundles with the aim of providing standardized perioperative care. Prior to 2019, EL management in our institution was not standardized. This study aims to assess whether implementation of a transdisciplinary perioperative Emergency Laparotomy (ELAP) pathway improves clinical and efficiency outcomes of EL. METHODS: A prospective single-center audit was undertaken between 1 January and 31 December, 2019 following the implementation of the ELAP pathway. Comparisons were made with retrospective data from the preimplementation period between 1 January and 31 December, 2017. Demographics and clinical and efficiency outcomes were compared for patients (age > 16 years old) requiring EL for acute abdominal conditions. RESULTS: There were 152 and 162 patients from preimplementation and postimplementation periods, respectively. There was a nonsignificant reduction of 30-day mortality in the intervention group receiving perioperative pathway care compared with the preintervention group (3.1% versus 5.3%, respectively; P = 0.40). There was a decrease in postoperative complications in the intervention group, in particular for Clavien-Dindo IV complications (11.2% versus 3.1%, p < 0.01). Efficiency outcomes improved postimplementation with increased consultant surgeon and anesthetist presence in operating theater and postoperative geriatric assessment for elderly patients. There was an overall reduction in cost of hospital stay from S$32,128 to $27,947 (p = 0.24). CONCLUSION: Implementation of a transdisciplinary perioperative care pathway was associated with significant reduction in postoperative complications, improvement in 30-day mortality and efficiency outcomes at reduced hospital costs for patients following EL in our institution.

Improving trauma care in exsanguinating patients with CHOP (critical haemorrhage to operating-room patient) resuscitation protocol-A cumulative summation (CUSUM) analysis.

INTRODUCTION: The standard protocol for exsanguinating trauma patients involves initial evaluation and resuscitation in the emergency department which then sets the stage for subsequent definitive care and disposition. This involves major coordination and mobilisation of resources which may cause a delay in intervention especially when most of these cases present after office hours. Our centre has employed a second-tier activation system (CHOP protocol) that immediately mobilises all respective trauma specialists including interventional radiologists and allows rapid access to the operating room. OBJECTIVE: We hypothesised that exsanguinating patients managed by CHOP protocol have better overall outcome and survival. METHODS: We identified trauma patients that fulfilled CHOP criteria from 2016 to 2019 and divided them into two groups: preCHOP (standard protocol) and CHOP. Data was extracted from a prospectively maintained trauma registry. Demographics, injury pattern and in-hospital data were analysed. The key outcome studied was the impact of CHOP protocol on the mortality rate. Success and failure of the two groups were analysed using CUSUM methodology. RESULTS: Thirty-seven patients were managed by CHOP protocol since its introduction in March 2018 compared to 36 patients who underwent standard protocol. Majority of the cases were blunt trauma (89% CHOP vs 92% preCHOP). The mean Injury Severity Score was 37 for CHOP group and 39 for preCHOP group. We observed a significant improvement in time to intervention in CHOP patients (78 min vs 113 min), both during and after office hours. CHOP patients had lower mortality compared to preCHOP group (11% vs 31%) and the effectiveness of the protocol was seen in achieving significantly lower mortality compared to the predicted model. CHOP protocol was able to produce a consistent trend of desired outcomes leading to the CUSUM curve exhibiting a sustained downward slope. CONCLUSION: The CHOP protocol, a relatively novel system in the local context, was able to achieve sustained improved outcomes compared to standard protocol. The CUSUM analysis concurred that implementation of CHOP protocol has helped to achieve consistent desired outcomes. It also suggested that the uptake and use of this protocol has integrated well into the existing workflow.

Improved outcomes for index cholecystectomy for acute cholecystitis following a dedicated emergency surgery and trauma service (ESAT).

INTRODUCTION: Early laparoscopic cholecystectomy (ELC) has shown to reduce length of stay and improve patients' satisfaction as compared to delayed laparoscopic cholecystectomy (DLC). However, logistics and manpower limitations often preclude ELC. METHODS: A retrospective study was conducted in a single institute to compare outcomes of AC before (August 2013-2014) and after (August 2017-2018) establishment of emergency surgery and trauma (ESAT). RESULTS: There were 82 patients in pre-ESAT period and 172 patients in ESAT period. Mean age was 52.3 ± 11.6 and 55.7 ± 13.8 years, respectively, p = 0.369. There were more patients with moderate-severe grading of cholecystitis based on Tokyo Guidelines (TG 18) in ESAT 143/172 (83.1%) as compared to pre-ESAT 65/82 (79.3%), p = 0.042. Index cholecystectomy was performed in 145/172 (84.3%) of patients in the ESAT vs 34/82 (41.5%) of patients in the pre-ESAT period (p = 0.001). Time interval between booking to surgery was 180 ± 56 min in ESAT vs 197 ± 98 min in pre-ESAT, p = 0.014. Operative duration was shorter in ESAT 121 ± 38.5 min vs 139 ± 53.4, in pre-ESAT period, p = 0.030. Conversion rates were lower in ESAT (4/172, 2.3%) vs (9/72, 11%) in pre-ESAT, p = 0.003. Length of stay was shorter in ESAT (DLC 1.89 ± 1.6 and ELC ± 2.9 days) as compared to pre-ESAT (DLC 4.55 ± 2.2 and ELC 5.03 ± 2.6 days), p = 0.001. 30-day readmissions were lower in ESAT (3/172, 1.7%) vs pre-ESAT (8/72, 9.8%). CONCLUSION: The ESAT model provided more early laparoscopic cholecystectomies with improved efficiency and clinical outcomes.

Impact of a dedicated emergency surgical service on appendicitis outcomes.

AIM: The Emergency Surgery and Trauma (ESAT) team is a dedicated consultant-led service to streamline the emergency surgical workload in Singapore. As acute appendicitis is one of the most common acute surgical conditions, we aim to compare outcomes of patients with appendicitis in the ESAT model as compared to the traditional on-call model. METHODS: A retrospective review of patients admitted to Khoo Teck Puat Hospital, Singapore, with acute appendicitis between two periods: May-October 2014 (6 months pre-ESAT) versus January-June 2017 (post-ESAT). Patient demographics, operative details, efficiency, clinical outcomes, and hospital bill savings were evaluated. RESULTS: There were 192 patients in the pre-ESAT period and 179 patients in the post-ESAT period. Patient demographics and comorbidities were comparable (P > 0.05). Time from emergency department referral to surgical review was significantly reduced in the ESAT period: 77.8 ± 46.9 min versus 127 ± 102 in the pre-ESAT period (P = 0.002). Time from case booking to operating theatre was significantly shorter in the ESAT period: 72.4 ± 55.2 min compared to 157.3 ± 209.1 (P < 0.01). More cases were carried out in the daytime during the ESAT period, 50.2% versus 39.1% (P = 0.029). The majority underwent laparoscopic appendectomy 156/179 (87.2%) in the ESAT period, with fewer open appendectomies 3/179 (1.7%) as compared to the pre-ESAT period (P = 0.062). There were higher intraoperative consultant supervision rates during the ESAT period, 38/166 (22.9%) as compared to 12/166 (6.7%) in the pre-ESAT period (P = 0.001). There were fewer complications (Clavien-Dindo grade II and above) in the ESAT period, 1 (0.6%) as compared to 6 (3.4%) pre-ESAT (P = 0.07). CONCLUSION: The ESAT service is associated with better efficiency outcomes for patients with acute appendicitis.

Hospital Seeing More Personal Mobility Device Accidents and Serious Injuries Despite Active Mobility Act.

INTRODUCTION: E-scooters or personal mobility devices (PMDs) have recently been growing in popularity in Singapore. These devices can be especially helpful for those who have reduced mobility or who need to move between several relatively near locations multiples times per day or who simply appreciate the added convenience of having another transportation option. The increasing popularity of PMD has met with growing public concern over safety. Singapore government passed the Active Mobility Act (AMA) in January 2017 to regulate the usage of PMD. In Khoo Teck Puat Hospital, PMD-related accident has increased year on year by 20%-30%. Our study is to compare the incidence and severity of PMD-related accidents before and after the implementation of the AMA. MATERIALS AND METHODS: A retrospective study of patients presented to the emergency department (ED) of Khoo Teck Puat Hospital for PMD-related accidents between November 2014 and October 2017. In year 1 of the study, we included patients presenting between November 2014 and October 2015. In years 2 and 3, we included patients presenting between November 2015 and October 2016 and November 2016 and October 2017, respectively. Data collected included demographic information, type of device used and impact, outcome, and injury severity score (ISS). RESULTS: A total of 697 PMD-related accidents were seen in our center. We observed an increasing trend of accidents with significant injuries. There were 157 accidents reported in year 1, 233 in year 2, and 307 in year 3. The mean age of patients increased from 28 ± 15 years (range, 5-89 years) in year 1 to 33 ± 15 years (range, 4-83 years). Most patients were males (61.8% in year 1, 76.8% in year 2, and 73.3% in year 3) and Chinese (55.4% in year 1, 62.7% in year 2, and 65.5% in year 3), followed by Malays, Indians, and others. Devices commonly associated with injury were E-scooters, skateboards, and E-bicycles. E-scooters accidents had increased drastically from 12.1% in year 1 to 58.3% in year 3, but E-bicycles and other PMD accidents had decreased in year 3. Most patients were injured from falling off their devices (83.4% in year 1, 83.7% in year 2, and 79.5% in year 3), followed by collisions. Most patients arrived to the ED with own transports and were triaged to the patient acuity category 3 or 4. Most injuries were mild, with ISS <9 (97.5% in year 1 and 94.9% and 94.1% in year 2 and 3, respectively). The most common PMD-related injuries involved external injuries, followed by upper and lower extremities injuries. For more severe injuries (ISS ≥9), the number had increased from 4 in year 1 to 18 in year 3. Most patients were discharged. The number of patients required admissions increased from 12 to 44 in year 3, with two high-dependency or intensive care unit admissions. The mean hospital stay reduced from 5.0 ± 6.0 days to 3.6 ± 4.1 days, with the survival rate remained at 100%. There was only one fatality was reported in year 2. CONCLUSION: There is an increase in injuries and severity of PMD accidents despite AMA being implemented in January 2017. More need to be done to ensure the safety of PMD-related use in Singapore footpaths and roads.

Injury patterns associated with personal mobility devices and electric bicycles: an analysis from an acute general hospital in Singapore.

INTRODUCTION: The increasing popularity of personal mobility devices (PMDs) and electric bicycles (e-bikes) in Singapore has met with growing public concern over safety. Following the passing of the Active Mobility Bill, there remains a gap in the local literature in terms of injury patterns arising from the use of these devices. METHODS: A retrospective study was conducted on the Singapore National Trauma Registry (SNTR) from the emergency department of an acute hospital from 1 January 2016 to 31 December 2016. All patients with injuries related to the use of PMDs and e-bikes were included. Data captured included demographic information, device used and injury severity score (ISS). RESULTS: The 259 patients identified had a mean age of 32.1 years and a male predominance. Most (83.4%) were injured from falling off their devices. Devices commonly associated with injury were scooters, skateboards and motorised bicycles. Most injuries were mild (94.6%, ISS < 9) and were mainly external wounds (89.2%) and upper and lower limb injuries (35.5%). There was no difference in ISS in terms of the device used (motorised vs. non-motorised). More severe injuries (ISS ≥ 9) were caused by e-bikes (42.9%) and electric scooters (28.6%). Factors associated with these injuries were older age, use of e-bikes, and injuries to the head, face and thorax. Most patients (86.1%) were discharged and one died. CONCLUSION: While most injuries associated with PMDs and e-bikes are minor, serious injuries could result from their use. The SNTR should be updated to include PMDs and e-bikes as a category.

Evolution of a Dedicated Emergency Surgery and Trauma (ESAT) unit over 3 years: sustained improved outcomes.

INTRODUCTION: The traditional 24-h call model faces pressure from competing needs between emergency and elective services. Recognizing this, a dedicated ESAT service was developed in Khoo Teck Puat Hospital in Singapore, with improved clinical outcomes. It was initially led by a single consultant (SC) in 2014, and subsequently evolved to a weekly consultant rotation (WC) roster in 2017 to achieve sustainability. METHODS: Each consultant led the ESAT WC service for a week and maintained ownership of their patients thereafter. All emergency surgical admissions between two distinct 6-month periods were reviewed, from May to October 2014 (pre-ESAT) and January to June 2017 (ESAT WC). Patient demographics, diagnoses, and operations were compared. Efficiency and clinical outcomes were evaluated. RESULTS: There were 1248 and 1284 patients in the pre-ESAT and ESAT WC group, respectively. Majority were males and in their 50s. Acute appendicitis, gallstone conditions, and soft-tissue infections made up half of the admissions. Trauma workload was comparable (7.8% pre-ESAT vs 9.5% ESAT WC). Cholecystectomies doubled during the ESAT period, 14.2% vs 7.2%, (p = 0.01). More consultants were involved in major cases (95.9% vs 86%), (p = 0.01) and more operations were performed during the day (52.1% vs 47.9%), (p = 0.01). Average time to OT was shorter and there were less major surgical complications (p = 0.02). Mortality (p = 0.08) and length of stay were reduced (4 vs 4.5 days), (p = 0.01). CONCLUSION: The ESAT WC service has sustained improved outcomes in our institution.

Early laparoscopic cholecystectomy by a dedicated emergency surgical unit confers excellent outcomes in acute cholecystitis presenting beyond 72 hours.

BACKGROUND: Early laparoscopic cholecystectomy (ELC) within 72 h of symptom onset is preferred for management of acute cholecystitis (AC). Beyond 72 h, acute-on-chronic fibrosis sets in rendering surgery challenging. This study aims to compare the outcomes of ELC for AC within and beyond 72 h of symptom onset by a dedicated acute surgical unit. METHODS: This is a single-centre retrospective study of 217 patients with AC who underwent ELC by an acute surgical unit from January 2017 to August 2018. Outcomes collected include post-operative morbidity, length of hospitalization and operation duration. A subgroup analysis for the same outcomes was performed for elderly patients. RESULTS: Of the 217 patients, 88 were operated within 72 h of symptom onset while 129 were operated beyond 72 h. Twenty-six patients received ELC after 7 days. There was no occurrence of bile duct injury. There was no statistical difference in conversion rates, wound infections and post-operative collections. Patients receiving ELC beyond 72 h had longer duration of operation (125.4 versus 116 min, P = 0.035) and length of hospitalization (4.59 versus 3.09 days, P = 0.001) without increase in morbidity. Patients older than 75 years had a higher incidence of post-operative collection (P < 0.001). CONCLUSION: Patients with AC undergoing ELC by a dedicated acute surgical unit can have good outcomes even beyond 72 h of symptom onset. Meticulous haemostasis should be performed for the elderly subgroup of patients.

A Comprehensive Analysis of Traumatic Rib Fractures in an Acute General Hospital in Singapore.

BACKGROUND: Rib fractures are common sequelae after blunt chest wall trauma. They can occur in isolation or association with life-threatening injuries to the head, thorax, and abdomen and may be complicated by hemothorax, pneumothorax, or lung contusions. Contiguous rib fractures can result in flail chest, which is associated with increased morbidity and mortality. This study aims to compare the risk factors, treatment modalities, and outcomes between patients with flail chest and nonflail chest postblunt trauma. PATIENTS AND METHODS: Data were retrospectively collected from all patients admitted with rib fractures from January 2016 to December 2016 to the Department of General Surgery, Khoo Teck Puat Hospital, Singapore. The outcomes identified were mortality, pain scores on injury day 1, 3, 5, and 7, injury severity score, duration of mechanical ventilation, worst partial pressure arterial oxygen/fraction of inspired oxygen (PaO2/FiO2) ratio, length of intensive care unit (ICU) stay, and pulmonary complications. RESULTS: Motor vehicle accident was the most common cause of rib fractures (63.1%, n = 123). Patients with flail chest had more associated pneumothorax (53.8% vs. 35.2%) and lung contusions (53.8% vs. 30.2%) compared to those without flail chest and underwent more investigations such as inpatient-computed tomography scans (76.9% vs. 59.3%), interventions such as chest tube insertion (61.5% vs. 19.8%), and ICU admission (46.1 vs. 13.7%). Patients also had higher pain scores, used more analgesic modalities, and had increased inpatient mortality (30.8% vs. 4.4%). CONCLUSION: Flail chest is associated with higher morbidity and mortality. Proactive management from a multidisciplinary team such as identification of high-risk patients in particular patients with flail chest, early admission to critical care, and protocols including multimodal pain management, respiratory support, and rehabilitation should be instituted.

Outcomes of emergency thoracotomy for trauma in a general hospital in Singapore.

Background An emergency thoracotomy can be performed either immediately at the site of trauma or in the emergency department or operating room for resuscitation of patients in extremis or life-saving treatment for patients with thoracic injury. It remains a procedure associated with high mortality rates, and there is a paucity of data from Asia. This study analyzed our six-year experience of emergency trauma thoracotomy in an acute general hospital in Singapore. Methods This retrospective analysis was based on experience in a single institution with all emergency trauma thoracotomies performed by general surgeons. All patients who underwent an emergency trauma thoracotomy in Khoo Teck Puat Hospital between January 2011 and December 2016 were studied. Data collected included patient demographics, mechanism of injury, Injury Severity Scores, surgical approach, and postoperative outcomes. Results Twenty-three patients underwent an emergency thoracotomy, 8 in the emergency department and 15 in the operating room. The mechanism of injury was blunt in 20 (87%) patients and penetrating in 3 (13%), with road traffic accidents the most common cause (70%). Six (40%) patients who underwent an emergency thoracotomy in the operating room survived beyond 24 h, and 4 (27%) survivors were eventually discharged from the hospital with no neurological deficit. No patient who underwent a thoracotomy in the emergency department survived beyond 24 h. Conclusions Emergency thoracotomy is associated with high mortality rates, especially when required in the emergency department or for blunt trauma. Nevertheless, it is a potentially life-saving procedure that offers a chance of survival in selected patients.

Emergency general surgery and trauma: Outcomes from the first consultant-led service in Singapore.

INTRODUCTION: There is a significant burden on public health systems from emergency surgical and trauma (ESAT) patients. In Western countries, the response has been to separate acute and elective surgery with the creation of a new sub-specialty: acute care surgery. Dedicated acute units have shown improvements in efficiency and clinical outcomes for patients. The aim of this study was to assess the results of the first such unit in Singapore. MATERIALS AND METHODS: A retrospective analysis was performed of a 12-month period of acute admissions between May 2014 and April 2015, with comparison of 6-months before and after the creation of the ESAT service. The ESAT service was a consultant led dedicated team managing all daily acute and trauma patients. Demographic, efficiency and clinical outcome key performance indicators were compared. RESULTS: There were 2527 acute admissions split between the two time periods. The ESAT service (N=1279) managed soft tissue infections (257, 20%), appendicitis (199, 16%) and biliary disease (175, 14%) most commonly. The most common of the 573 procedures performed were incision and drainage (242, 42%), appendicectomy (188, 33%) and laparotomy (84, 16%). Clinical outcome during the ESAT service included reduction in overall mean length of stay (4.5d to 3.5d, P<0.01) and mortality (24/1248 (1.9%) to 11/1279 (0.9%), P=0.03). Efficiency gains in theatre booking time, ED surgical review and overall costs were also noted. CONCLUSION: The creation of an ESAT service has led to improved efficiency of care with no worsening of clinical outcomes for acute general surgical and trauma patients.