Narrative review of traumatic pneumorrhachis

Pneumorrhachis (PR) is defined as presence of free air in the spinal canal. Traumatic PR is very rare, and its exact incidence and pathogenesis is unknown. A comprehensive literature search was performed using the PubMed, Cochrane Library, Google Scholar and Scopus databases to identify articles relevant to traumatic PR published till January 2023. A total of 34 resources were selected for inclusion in this narrative review. Traumatic PR can be classified anatomically into epidural and intradural types. In the epidural type, air is present peripherally in the spinal canal and the patients are usually asymptomatic. In contrast, in intradural PR, air is seen centrally in the spinal canal and patients present with neurological symptoms, and it is a marker of severe trauma. It is frequently associated with traumatic pneumocephalus, skull fractures or thoracic spine fracture. Computed tomography (CT) is considered to be the diagnostic modality of choice. Epidural PR is self-limited and patients are generally managed conservatively. Patients with neurological symptoms or persistent air in spinal canal require further evaluation for a potential source of air leak, with a need for surgical intervention. Differentiation between epidural and intradural PR is important, because the latter is an indication of severe underlying injury. CT imaging of the entire spine must be performed to look for extension of air, as well as to identify concomitant skull, torso or spinal injuries Most patients are asymptomatic and are managed conservatively, but a few may develop neurological symptoms that need further evaluation and management.

Radiological cardiac compression secondary to retrosternal haematoma in blunt trauma

Nil.

A rare case report of combined metformin-associated lactic acidosis and diabetic ketoacidosis

Background

Triad of diabetic ketoacidosis (DKA) comprises of hyperglycemia with serum glucose > 11 mmol/L, high anion gap metabolic acidosis and ketonemia. Hyperlactemia is often noted in patients with DKA. Metformin use is one of the risk factors of hyperlactemia, resulting in high anion gap metabolic acidosis, known as metformin associated lactic acidosis (MALA). This report is of a 60-year-old woman with type 2 diabetes mellitus who presented with combined metformin-associated lactic acidosis MALA and DKA.

Case presentation

A 60-year-old diabetic female presented to the emergency department with complaints of abdominal pain, vomiting and diarrhea. She was on metformin for the last 10 years, but despite compliance to medications, her HbA1c was 14.1. With an aim to improve her glycemic control, linagliptin 5 mg once a day was added 1 month ago. Initial investigations in ED including arterial blood gas analysis revealed metabolic acidosis, ketosis, hyperlactemia, and acute kidney injury. In view of metabolic acidosis and ketosis with elevated blood glucose level, she was diagnosed to have DKA. Compared to isolated DKA, patients with combined MALA and DKA have severe metabolic acidosis, a greater degree of hyperlactatemia but less extensive ketoacidosis. Hence, she was diagnosed to have combined MALA and DKA. She was admitted to intensive care unit and treated with intravenous fluids, insulin infusion, and continuous renal replacement therapy. Her metabolic acidosis, hyperlactemia, and kidney injury resolved and she was discharged well.

Conclusion

This report has shown the importance of rapid diagnosis and management of the rare and challenging diagnosis of combined MALA and DKA. The main goal of therapy is preventing hyperglycemia and ketosis, resolution of metabolic acidosis, and removal of accumulated metformin using intensive therapies like aggressive fluid resuscitation and early initiation of renal replacement therapy. Adjustment of dose of medications is needed to avoid this complication.

A rare case of penetrating intra-abdominal trauma by a fishing speargun

Spearfishing is a popular sport in New Zealand. While there have been a few reported self-inflicted speargun injuries causing fatal intracranial damage, accidental speargun injuries while fishing are less common. Intra-abdominal speargun injuries are even less common. Its occurrence in a 30-year-old male patient reported here highlights the potential risk of life-threatening injuries. A 30-year-old male sustained an accidental speargun injury, with the spear passing through central small bowel loops and its pointed tip penetrating the left iliac wing. The patient underwent laparotomy, and the spear was removed in an antegrade fashion with primary closure of small bowel enterotomies and repair of the mesenteric defects. He had a re-look laparotomy 48 hours later with resection and anastomosis of two primary small bowel repairs and was eventually discharged after 12 days. Information obtained by radiological evaluation using computed tomography (CT) scan and angiography regarding the spear trajectory, injured organs, vasculature and spear tip mechanism is important to decide the best surgical approach. The spear should be removed in an antegrade fashion, because pulling the spear in the retrograde direction can cause further tissue and/or vascular injury. Currently, there is no legislation regarding the use of spearguns and users do not require a license, despite the potential for severe penetrating trauma similar to that caused by firearms. Spearguns can produce life-threatening injuries and the removal of the spear depends on the location of the tip in relation to adjacent structures and whether the flapper is open. It often requires a multidisciplinary team approach. Safety guidelines need to be published and widely available, and the potential risks of speargun injuries should be included in fishing rules. Introducing license requirement for possession and handling of this firearm-like weapon also needs to be considered.

Considering guardsman fracture as a differential in mandibular injuries

A guardsman fracture is characterized by bilateral condylar fractures in combination with a parasymphyseal fracture and is usually seen in epileptics and elderly patients due to fall on the chin. The utility of plain radiographs in identification of guardsman fracture is limited. Computed tomography scan, including three-dimensional reconstruction, allows better visualization of the temporomandibular joint (TMJ) without superimposition of the bony structures as well as assessment of condylar fracture position, angulation, and any fractured dislocation of the condylar head. Early identification and appropriate evaluation of this condition by the emergency physicians and trauma surgeons is important to guide the maxillo-facial surgeons to determine the appropriate treatment modality and timing of surgery and to avoid subsequent complications from an injury to the TMJ complex.

Activating Code Crimson in the emergency department: Expediting definitive care for trauma patients with severe haemorrhage in Singapore

"Trauma activation" is a process adopted across all emergency departments of public healthcare institutions in Singapore, with the aim of rapidly mobilising personnel and resources to care for patients with major trauma. A subset of trauma patients with exsanguinating haemorrhage has a particularly high mortality rate, and they require an additional response beyond the usual trauma activation for definitive haemorrhage control. To address this need, Code Crimson has been developed at Auckland City Hospital in New Zealand and other jurisdictions as a step-up response. This is aimed at early activation of the massive transfusion protocol for haemostatic resuscitation, involvement of additional multidisciplinary teams for rapid decision-making, and expediting definitive haemorrhage control. At present, there is no protocol for activation of Code Crimson in Singapore. Code Crimson may be effective in Singapore, as it has been in other jurisdictions, to reduce morbidity and mortality in major trauma patients with severe haemorrhage.

A case report of ivory vertebra sign: an initial radiological manifestation of underlying abdominal malignancy

Low back pain is one of the most common presenting complaints in the emergency department, and a plain radiograph of the lumbar spine is usually the first diagnostic modality. The ivory vertebra sign refers to the radiological appearance of a smooth, white ivory-like appearance of the affected single vertebra or multiple vertebral bodies. It is sometimes the initial radiologic manifestation of a variety of infectious, neoplastic, or metabolic diseases. Subsequent computerized tomography and magnetic resonance imaging are generally indicated to characterize the details, as well as look for other occult lesions. It is therefore important for emergency physicians to be aware of this, as this will aid in the appropriate evaluation and rapid diagnosis of the underlying disorder.

Ball-shaped right atrial mass in renal cell carcinoma: A case report

BACKGROUND

Renal cell carcinoma (RCC) is an aggressive tumor, with an incidental discovery in most patients. Classic presentation is rare, and it has a high frequency of local and distant metastasis at the time of detection.

CASE SUMMARY

We present a rare case of a 58-year-old man with a ball-shaped thrombus in the right atrium at the time of first incidental identification of RCC in the emergency department. Cardiac metastasis, especially thrombus in the right atrium, is rare. It could either be a bland thrombus or a tumor thrombus, and physicians should consider this potentially fatal complication of RCC early at the time of initial presentation.

CONCLUSION

Ball-shaped lesions in the right atrium are rare, and bland thrombus should be differentiated from tumor thrombus secondary to intracardiac metastasis.

Adenosine-induced ventricular fibrillation in a patient with supraventricular tachycardia

Adenosine is frequently used for paroxysmal supraventricular tachycardia (PSVT) treatment in the emergency department (ED). Atrial and ventricular pro-arrhythmic effects of adenosine were described in the literature, but ventricular fibrillation (VF) secondary to adenosine administration was rarely reported (with an incidence of < 1%). Reported herein is the first case of a 72-year-old female patient who developed VF hemodynamic collapse after an intravenous administration of adenosine for PSVT treatment. She had no known pre-excitation or accessory pathway, nor any underlying structural heart disease or prolonged QT syndrome. Raising awareness of this potential life-threatening pro-arrhythmic effect of adenosine is important, given its frequent use for PSVT treatment in the ED.

An armed assailant in our hospital: Are we prepared?

While armed assailant attacks are rare in the hospital setting, they pose a potential risk to healthcare staff, patients, visitors and the infrastructure. Singapore hospitals have well-developed disaster plans to respond to a mass casualty incident occurring outside the hospital. However, lack of an armed assailant incident response plan can significantly reduce the hospital's ability to appropriately respond to such an incident. The authors describe various strategies that can be adopted in the development of an armed assailant incident response plan. Regular staff training will increase staff resilience and capability to respond to a potential threat in the future. The aim of this article is to highlight the need for the emergency preparedness units of all hospitals to work together with various stakeholders to develop an armed assailant incident response plan. This will be of great benefit for keeping healthcare facilities safe, both for staff as well as for the community.

Bell’s Palsy After Second Dose of Moderna COVID-19 Vaccine: Coincidence or Causation?

US Food and Drug Administration (FDA) recommended enhanced safety surveillance to monitor for cases of Bell’s palsy following Moderna vaccine administration in larger populations. The author reports a patient who developed right sided Bell’s palsy 2 weeks after administration of the second dose of Moderna COVID-19 vaccine. Considering this development of symptoms 2 weeks after the second dose of Moderna vaccine administration, there remains a possibility of a causal association. As more people get vaccinated, more information may be available in the future to establish association. Physicians need to maintain enhanced safety surveillance to monitor for cases of Bell’s palsy following mRNA vaccine administration.

Inhaling muscle spray: A rising trend of abuse

Ethyl chloride was popular as an inhalant recreational drug in the 1980s. It is easily available in pharmacies as well as sold online as a topical anesthetic spray for pain relief. In recent times, its use is gaining popularity again among the youth as an inhalant drug due to its neuro-stimulatory effects. To avoid the risks associated with use of illegal drugs, and ease of availability of ethyl chloride without restrictions, there is a rising trend to use it as a “substitute” drug of abuse. In this paper, we try to highlight to the critical care and emergency physicians that majority of these cases present with predominant neurological symptoms, with occasional involvement of the cardiovascular system. The diagnosis of ethyl chloride poisoning is primarily clinical and supportive care is the mainstay of treatment, along with subsequent counseling. Ethyl chloride abuse should be considered as a differential diagnosis in young patients presenting with predominant neurological symptoms. Alongside raising public awareness, the manufacturers and retail distributors of these products have an important role to play in reducing the risk of abuse.

A case of colonic obstruction combined with ischemic colitis

CT scan of the abdomen showing a large amount of feces in the anterior descending recto-sigmoid colon with wall thickening (red arrow) and surrounding fat stranding (yellow arrow) suggestive of stercoral colitis.

Airway Management in the Emergency Department During Coronavirus Disease (COVID-19)

Summary. Front-line health-care workers in the Emergency Department (ED) are at an increased risk of infection during the airway management of patients with known or suspected Emerging Viral Diseases (EVD) like Coronavirus Disease 2019 (COVID-19). The primary route for transmission of the virus from an infected patient to the ED staff is due to aerosolized droplets, and the transmission risk is high despite wearing adequate Personal Protective Equipment (PPE). There are limited evidence-based guidelines for airway management during these viral infections, especially with a focus on the principles of airway management in a busy, fast-paced ED. This article provides an overview of the principles of airway management in suspected or confirmed EVD patients, including COVID-19, particularly in the context of ED, and also considering strategies in resource limited setting. These principles should be adapted to suit your local department and hospital policy on airway management as well as national guidelines.

Cervicofacial Emphysema Complicating a Dental Procedure

BACKGROUND

Cervicofacial subcutaneous emphysema can occur rarely after a dental procedure, especially tooth extraction, and can be misdiagnosed as an allergic reaction or post-procedure swelling.

CASE REPORT

We report a rare case of a 29-year-old man who developed extensive cervicofacial subcutaneous emphysema after a dental hygiene procedure. A review of the relevant literature is presented in our report. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Early identification and management of this potentially life-threatening condition is particularly important and can prevent serious complications, leading to improved patient outcomes.

An approach to a perceived risk of venous thromboembolism in non-ICU COVID-19 patients in Singapore

Coronavirus disease 2019 (COVID-19) can lead to coagulation activation and venous thromoembolism (VTE), with an incidence of around 25–27%. Patients admitted to the intensive care unit (ICU) are at highest risk. There are not many studies reporting its incidence in non-ICU patients. A large number of COVID-19 patients in Singapore, with symptoms ranging from mild to moderate, have been admitted to either Community Care Facilities (CCF) or in general wards of Public Healthcare Institutions (PHI). In case there is a surge of COVID-19 patients, there is a possibility that general wards in PHIs may need to admit an increasing numbers of acutely ill patients, with only the critical ones being admitted to ICU. The incidence of VTE in non-ICU patients is not exactly known and its detection in these patients is challenging. Thus, the healthcare staff managing these patients at the CCFs and general wards at the PHIs should be vigilant and monitor these patients for development of signs and symptoms of deep vein thrombosis, as well as trend D-dimer level. An algorithm for a potential approach to manage VTE in non-ICU COVID-19 patients is described. A prospective study is needed to establish the incidence of VTE in non-ICU patients in Singapore and the predictive value of D-dimer levels to detect this risk, as well as a therapeutic protocol to initiate appropriate pharmacological thromboprophylaxis in these patients.

SARS-CoV-2 and its dynamic impact on emergency department preparedness and management

Introduction: Emerging viral diseases (EVDs) pose a significant threat to public health. There have been a few viral epidemics in the last two decades. Coronavirus disease 2019 (COVID-19) is now a global pandemic. Objective: To provide emergency physicians an update on severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its dynamic impact on the emergency department (ED) in terms of preparedness and management of patients presenting to ED with suspected COVID-19 disease. Discussion: COVID-19 has a human-to-human transmission through close contact and even from asymptomatic carriers. Symptoms are similar to a viral respiratory illness. The disease is mild and self-limiting in most patients, but some develop severe illness like pneumonia, acute respiratory distress syndrome (ARDS) and multiorgan failure. Emergency physicians should prioritize early identification of these patients at risk, isolate them and after collaborating with relevant hospital and national authorities, develop clinical pathways to safely evaluate, manage and dispose patients with COVID-19. Various strategies for managing these patients in the ED are discussed. Disposition of these patients depends on symptoms and hemodynamic status and potential to self quarantine versus admission to an isolation facility. Conclusion: This review provides an overview of patients presenting to the ED with suspected COVID-19 and its impact on the ED. It reiterates the fact that emergency physicians, in close collaboration with relevant hospital authorities, play a pivotal role during EVDs. It emphasizes the need for pandemic preparedness, enabling us to better manage such events in the future.

Mortality and Neurological Outcomes in Out-of-Hospital Cardiac Arrest Patients With and Without Targeted Temperature Management in a Multiethnic Asian Population

INTRODUCTION

The use of targeted temperature management (TTM) is increasing although adoption is still variable. We describe our 6-year experience and compare the mortality and neurological outcomes of out-of-hospital cardiac arrest (OHCA) patients with and without the use of TTM in a multiethnic Asian population.

MATERIALS AND METHODS

We performed a retrospective observational study at a tertiary academic medical centre. OHCA survivors admitted to our hospital between April 2010‒December 2016 were included. Outcomes of interest were 30-day mortality postresuscitation, Cerebral Performance Category (CPC) and Overall Performance Category (OPC) scores.

RESULTS

A total of 121 of 261 patients (46.3%) underwent TTM. TTM patients were younger (TTM 60.0 years old vs no TTM 63.7 years old, P = 0.047). There was no difference in the initial arrest rhythm of shockable origin between the 2 groups (P = 0.289). There was suggestion of lower 30-day mortality (TTM 24.3% vs no TTM 31.4%, P = 0.214), higher and good CPC/OPC scores (TTM 19.0% vs no TTM 15.7%, P = 0.514) with TTM although this did not reach statistical significance. On multivariable logistic regression analysis, TTM was not associated with 30-day mortality (P = 0.07). However, older age, initial non-shockable rhythm and increased duration from arrest to return of spontaneous circulation were associated with increased mortality. Malay ethnicity was associated with a poorer CPC/ OPC score.

CONCLUSION

Adoption and outcomes of TTM postresuscitation is variable and there is still a need to optimise management of the identified predictors of survival and good neurological outcomes while TTM is being used.

External Validation of Hematoma Expansion Scores in Spontaneous Intracerebral Hemorrhage in an Asian Patient Cohort

BACKGROUND

Hematoma expansion (HE) occurs in approximately one-third of patients with intracerebral hemorrhage (ICH) and is known to be a strong predictor of neurological deterioration as well as poor functional outcome. This study aims to externally validate three risk prediction models of HE (PREDICT, 9-point, and BRAIN scores) in an Asian population.

METHODS

A prospective cohort of 123 spontaneous ICH patients admitted to a tertiary hospital (certified stroke center) in Singapore was recruited. Logistic recalibrations were performed to obtain updated calibration slopes and intercepts for all models. The discrimination (c-statistic), calibration (Hosmer-Lemeshow test, le Cessie-van Houwelingen-Copas-Hosmer test, Akaike information criterion), overall performance (Brier score, R²), and clinical usefulness (decision curve analysis) of the risk prediction models were examined.

RESULTS

Overall, the recalibrated PREDICT performed best among the three models in our study cohort based on the novel matrix comprising of Akaike information criterion and c-statistic. The PREDICT model had the highest R² (0.26) and lowest Brier score (0.14). Decision curve analyses showed that recalibrated PREDICT was more clinically useful than 9-point and BRAIN models over the greatest range of threshold probabilities. The two scores (PREDICT and 9-point) which incorporated computed tomography (CT) angiography spot sign outperformed the one without (BRAIN).

CONCLUSIONS

To our knowledge, this is the first study to validate HE scores, namely PREDICT, 9-Point and BRAIN, in a multi-ethnic Asian ICH patient population. The PREDICT score was the best performing model in our study cohort, based on the performance metrics employed in this study. Our findings also showed support for CT angiography spot sign as a predictor of outcome after ICH. Although the models assessed are sufficient for risk stratification, the discrimination and calibration are at best moderate and could be improved.

Post-resuscitation care

Following return of spontaneous circulation (ROSC) after cardiac arrest, the challenge is to institute measures that ensure a higher likelihood of neurologically intact survival. Regardless of the cause of collapse, multiple organ systems may be affected secondary to post-cardiac arrest syndrome. Interventions required for post-ROSC care are bundled into a care regimen: prompt identification and treatment of the cause of cardiac arrest; and treatment of electrolyte abnormalities. It is also essential to establish definitive airway management to maintain normocapnic ventilation, prevent hyperoxia, and optimise haemodynamic management via judicious intravenous fluids and vasoactive drugs. Targeted temperature management after ROSC confers neuroprotection and leads to improved neurological outcomes. Glycaemic control of blood glucose levels at 6-10 mmol/L, adequate seizure management and measures to optimise neurological functions should be integrated into the care bundle. The interventions outlined can potentially lead to more patients being discharged from hospital alive with good neurological function.

Advanced Cardiac Life Support: 2016 Singapore Guidelines

The main areas of emphasis in the Advanced Cardiac Life Support (ACLS) guidelines are: early recognition of cardiac arrest and call for help; good-quality chest compressions; early defibrillation when applicable; early administration of drugs; appropriate airway management ensuring normoventilation; and delivery of appropriate post-resuscitation care to enhance survival. Of note, it is important to monitor the quality of the various care procedures. The resuscitation team needs to reduce unnecessary interruptions to chest compressions in order to maintain adequate coronary perfusion pressure during the ACLS drill. In addition, the team needs to continually look out for reversible causes of the cardiac arrest.

A Human Bite on the Scrotum: Case Report and Review of Management in the Emergency Department

BACKGROUND

Human bites involving the genitalia rarely present to the emergency department (ED). They have the potential to cause life-threatening secondary infections as well as serious physical and functional damage.

CASE REPORT

We report a case of an adult male who sustained a human bite to the scrotum, resulting in a ragged laceration on the anterior scrotum, with a devascularized flap and necrotic edges overlying the wound. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Human bites to the scrotum are rare and, hence, the experience of emergency physicians treating patients presenting with these injuries may be minimal. This puts patients at risk of underevaluation or suboptimal treatment. The rapid initiation of antibiotics in the ED and thorough wound debridement will prevent infections, aid healing, and lead to improved outcomes by preserving organ function and integrity. We therefore present a systematic approach to the management of patients with human bite to the scrotum in the ED.

Incidental Radiological Finding of Charm Needles

The charm needles, or susuks, are small, needle-shaped metallic talismans inserted subcutaneously in different parts of the body. This is a traditional practice, occasionally encountered in the Southeast Asian region. This case report describes two patients who were evaluated in the emergency department and incidentally found to have charm needles on the plain radiographs. These needles are not visible externally and have not been reported to cause any adverse effects. Emergency physicians should be aware of the existence of this traditional practice and chances of its incidental detection on radiographs. This would help avoid misdiagnosis and further investigations. It would also avoid susuks being considered as foreign bodies responsible for the patient's symptoms.

Randomized controlled trial of internal and external targeted temperature management methods in post- cardiac arrest patients

BACKGROUND

Targeted temperature management post-cardiac arrest is currently implemented using various methods, broadly categorized as internal and external. This study aimed to evaluate survival-to-hospital discharge and neurological outcomes (Glasgow-Pittsburgh Score) of post-cardiac arrest patients undergoing internal cooling verses external cooling.

METHODOLOGY

A randomized controlled trial of post-resuscitation cardiac arrest patients was conducted from October 2008-September 2014. Patients were randomized to either internal or external cooling methods. Historical controls were selected matched by age and gender. Analysis using SPSS version 21.0 presented descriptive statistics and frequencies while univariate logistic regression was done using R 3.1.3.

RESULTS

23 patients were randomized to internal cooling and 22 patients to external cooling and 42 matched controls were selected. No significant difference was seen between internal and external cooling in terms of survival, neurological outcomes and complications. However in the internal cooling arm, there was lower risk of developing overcooling (p=0.01) and rebound hyperthermia (p=0.02). Compared to normothermia, internal cooling had higher survival (OR=3.36, 95% CI=(1.130, 10.412), and lower risk of developing cardiac arrhythmias (OR=0.18, 95% CI=(0.04, 0.63)). Subgroup analysis showed those with cardiac cause of arrest (OR=4.29, 95% CI=(1.26, 15.80)) and sustained ROSC (OR=5.50, 95% CI=(1.64, 20.39)) had better survival with internal cooling compared to normothermia. Cooling curves showed tighter temperature control for internal compared to external cooling.

CONCLUSION

Internal cooling showed tighter temperature control compared to external cooling. Internal cooling can potentially provide better survival-to-hospital discharge outcomes and reduce cardiac arrhythmia complications in carefully selected patients as compared to normothermia.

Asian Targeted Temperature Management Task Panel Report

In the fields of emergency and critical care, targeted temperature management has become a critical issue and particularly popular in clinical practices throughout Asia. As more research is carried out, evidence and concepts about targeted temperature management continue to evolve. Areas of interest include new 2015 resuscitation guidelines, temperature management in pediatrics, and integrated care and neurological monitoring for cardiac arrest patients. The Asian Targeted Temperature Management task panel includes colleagues from various Asian countries and allows them to exchange experiences in a professional environment. Some of the key issues include optimal therapeutic hypothermia temperature for postcardiac arrest syndrome pursuant to 2015 guidelines, an integral approach to postcardiac arrest syndrome with hemodynamic monitoring and stabilization, roles of percutaneous coronary intervention and extracorporeal membrane oxygenation, and temperature management for neonatal hypoxic-ischemic encephalopathy. Panel experts reviewed all of the aforementioned issues and discussed the feasibility and effectiveness of targeted temperature management based on the Asian population. These discussions can expand the perspectives with regard to applying targeted temperature management all over the world.

Early diagnosis of bowel obstruction and strangulation by computed tomography in emergency department

BACKGROUND

Closed loop bowel obstruction is a specific type of mechanical obstruction with a high risk of strangulation and bowel infarction, especially in the small bowel. It is associated with a high mortality rate. Hence, it is important for emergency physicians to identify the presence of strangulation, while making the diagnosis of closed loop small bowel obstruction.

METHODS

We reported three patients with strangulated closed loop small bowel obstruction associated with severe abdominal pain, who had been treated at the emergency department. Urgent computerized tomography was performed in the patients.

RESULTS

Two patients were discharged with stable conditions, and one patient died after hemodialysis.

CONCLUSION

Urgent computerized tomography of the abdomen serves as an important diagnostic tool in view of its ability to detect the site, level and cause of obstruction along with the distinctive CT appearance of closed loop small bowel obstruction and signs of ischemia. Early definitive diagnosis will guide subsequent management and improve outcomes.

Academic emergency medicine in India

OBJECTIVES

Emergency medicine (EM) was recognized as a specialty by the Medical Council of India (MCI) in July 2009. As India undergoes urbanisation, cost-effective transition from managing infectious diseases to emergency management of trauma and cardio-respiratory diseases is crucial. Trained emergency healthcare workers are needed to respond effectively to these challenges. The objective was to determine the current status of academic EM training and related issues in India, and to discuss those that need to be addressed.

METHODS

The authors conducted electronic literature searches for articles published over an 18 year period from January 1994 to February 2013 using PubMed, Google and Yahoo databases. The references listed in the publications identified from these databases were also reviewed.

RESULTS

Electronic literature searches revealed a multitude of 1 to 3 year training programmes, many affiliated with various foreign universities. The majority of these training programmes are offered in private healthcare institutions. MCI recognition has opened the doors for medical colleges to set up Indian specialty training programmes. Two separate Academic Councils are currently looking at EM training.

CONCLUSION

The variety of programmes and separate efforts on academic development begets a need to address the issues of short-term courses being passed off as specialty training programmes, and a need for working together on national curriculum development, certification, accreditation systems and common examinations. The different organisations and academic councils could collaborate to give EM a unified scope for development.

Emergency thoracotomy: a review of its role in severe chest trauma

AIM

We aim to assess which group of patients with blunt or penetrating chest trauma will benefit from emergency thoracotomy (ET) and have a good functional outcome.

METHODS

A literature search was conducted using PUBMED, EMBASE, Science Direct and Google Scholar. The search terms used were: emergency thoracotomy; penetrating chest injury; blunt chest injury. The inclusion criteria were human trials, studies and case series on emergency or emergency department thoracotomy in adults and all papers that compared outcomes between patients with penetrating and blunt chest injury. All meta analysis, case reports, thoracotomies in children and the pediatric population, thoracotomies that were not performed in an emergency setting and papers that did not include data on both penetrating and blunt injuries were excluded.

RESULTS

A total of 20 papers met the above criteria. More ETs were performed in patients with penetrating chest injury (PCI); range 3 to 670, mean 122 compared to blunt chest injury (BCI); range 5 to 319, mean of 51. Survival of the patients who underwent ET seemed to be higher in the PCI group; range 2.7% to 37.5%, mean 17.0% compared to BCI group; range 0.6% to 60%, mean of 4.6%. Mean Survival rate was higher (70.9%) for stab wounds compared to gunshot wounds (29.2%). The mean percentage of neurologically intact survivors among PCI survivors 86% (164) were higher compared to the BCI group 12% (8).

CONCLUSION

Patients most likely to benefit from ET are those with penetrating chest injury, signs of life at scene or on arrival in the ED or pericardial tamponade. Hospitals should develop specific guidelines for emergency thoracotomy for patients with penetrating trauma, pericardial tamponade and witnessed cardiac arrest, as they are most likely to benefit from ET with improved chances of survival and good neurological outcome.

Spontaneous subarachnoid hemorrhage as a differential diagnosis of pre-hospital cardiac arrest

Spontaneous subarachnoid hemorrhage is the most common neurological disorder leading to pre-hospital cardiac arrest. ECG changes in SAH may mimic myocardial infarction or ischemia, and thus lead to delayed treatment of the primary problem. Early identification of SAH-induced cardiac arrest with the use of computed tomography scan of the brain obtained immediately after resuscitation will aid emergency physicians make further decisions. The overall prognosis of patients who are resuscitated is extremely poor. But, prompt neurosurgical referral and multidisciplinary intensive care management can improve the survival rate and the functional outcome. Thus, physicians should consider SAH as a differential diagnosis in patients presenting with pre-hospital cardiac arrest.

Simulation Training in Emergency Medicine (STEM): An Integral Component of Residency Curriculum

In the field of emergency medicine (EM), health professionals should be able to function effectively in the dynamic, uncertain, time-pressured, and high-stakes environment of the emergency department. Simulation training in emergency medicine (STEM) can be a tool to create an environmental milieu which allows developing health professionals' knowledge, skills and attitudes. It amplifies realistic experience in a safe and controlled environment and in an interactive fashion, providing feedback and hence, effective and experiential learning. It also provides a basis for teaching and assessment by simulating encounters on complex issues, multidisciplinary issues, team dynamics, communication skills and professionalism and dealing with challenging patients and family members. This article highlights the current evidence on the usefulness of simulation in training residents in EM and its need to be integrated into the basic framework of the Accreditation Council for Graduate Medical Education - International (ACGME-I) accredited emergency medicine residency curriculum and assessment in Singapore. This will eventually lead to transfer of skills into real world settings and have an impact on patient safety, and hence improve patient outcomes.

Tramadol Overdose: A Case Report

Tramadol, a commonly prescribed opioid analgesic, is considered to have a low abuse potential and devoid of side effects like drug dependence. Very few fatalities due to isolated tramadol overdose, either intentional or accidental, have been reported so far. We report a case of a 27-year-old female with isolated tramadol overdose, having a peripheral blood tramadol concentration of 4mg/L, which is exceeding the lethal blood concentration of 2mg/L. This is the first report of a patient in Singapore who survived tramadol overdose despite having a lethal blood concentration. Physicians should be aware that patients with tramadol overdose may only present with signs related to isolated Serotonin-Norepinephrine Reuptake Inhibitor (SNRI) properties and not always associated with the features of classical opioid overdose. Some patients might exhibit a certain degree of tolerance to the drug after prolonged prior exposure to the medication, and this tolerance could extend beyond the therapeutic range. It also emphasises the need for physicians to be more cautious while prescribing tramadol to their patients.