Cardiac concussion is a sudden, direct blunt trauma cause to the chest which led to death. However, there are patients who did not completely fulfil this definition. We report two cases which did not fit into the definition domain. Two male patients presented to Emergency Department with moderate anterior chest pain after motor vehicle crash showed transient anterior ST segment elevation at chest lead V2 and V3 with raised creatine kinase and normal troponin T. The electrocardiogram changes fully resolved after 24 hours. Both patients were discharged uneventfully after 24 hours monitoring in Emergency Department short-stay ward. Conventional definition of cardiac concussion (commotion cordis) and cardiac contusion may be unsuitable to describe these cases. Therefore, we propose the diagnosis of focal cardiac concussion. We also highlighted the ability of Emergency Department to manage these patients in short-stay ward.
Commotio Cordis

Stridor in infants with subglottic cyst is rare. Mismanagement of such cases may lead to respiratory compromise with a potentially serious and fatal outcome. The diversity of the clinical presentations throws a great challenge in the diagnosis of subglottic cysts. Manifestations vary as they depend on the size and location of the cysts. We report the case of a 6-month-old girl who had a subglottic cyst but managed as moderate croup till she developed worsening respiratory acidosis which difficult intubation. Any case of premature infants with previous history of neonatal intubation presenting with stridor should prompt clinicians to look for possible cysts in the larynx. This is important because once the diagnosis is made,appropriate treatment may be given and unnecessary morbidity and mortality may be avoided.
Intubation, Intratracheal

Sepsis causes high mortality and morbidity. Static lactate concentration and early lactate clearance are cited to be a predictor for sepsis survival. This study examined the clinical utility of static lactate concentration and early lactate clearance within the first six hours of admission in Emergency Department (ED) to predict 28-day mortality rate in sepsis patients. Patients who presented with sepsis, severe sepsis or septic shock and admitted to ED of Universiti Kebangsaan Malaysia Medical Centre were recruited. Blood lactate concentrations were measured upon admission (H0), at 1st hour (H1) and 6th hour (H6), respectively. Either standard treatment of sepsis or early goal directed therapy was initiated according to sepsis severity. A follow-up report was conducted at 28 days via telephone call, e-mail or case notes. Patients were later classified into survivor and non-survivor as final outcome. Static lactate concentration appeared to be significantly higher for non-survivor as compared to the survival group at H0, H1 and H6 (p<0.05). The lactate clearance trend reflects no relationship between early lactate clearance and 28-day mortality. Static lactate concentration showed a superior predictor for sepsis over early lactate clearance. Although early lactate clearance was unable to prove its ability to predict 28-day mortality, our findings suggest it can be a useful tool to gauge the resuscitation outcome.
Sepsis

Mild hyperkalaemia does not typically cause cardiac symptoms. However, for an elderly patient on atrio-ventricular (AV) nodal blocker, even mild hyperkalaemia may result in disastrous outcome. We report a case of persistent bradyarrythmia caused by iatrogenic hyperkalaemia in a patient who had concomitant use of AV nodal medication. An 81-year-old lady with multiple comorbidities and a long list of medications presented with symptomatic bradyarrhythmia. She, in fact, had two AV nodal blockers in her prescription, a beta-blocker and amiodarone. Her potassium level was found to be mildly elevated due to acute renal failure. She remained bradycardic despite initial treatment and was subsequently dependant on intravenous isoproterenol until her renal function improved. This case highlights the different threshold for manifestation of hyperkalaemic symptoms in a growing group of patients: elderly patients with multiple comorbidities and polypharmacy.

Open tracheal injury is rare but can lead to disastrous consequences such as massive bleeding, airway obstruction or failure and aspiration of blood. We present a case of open tracheal injury of a man who tried to attempt suicide using a knife. In this case, the initial management was securing the airway by attempting orotracheal intubation. However, it was unsuccessful when the tube came out from the laceration wound. Intubation was then re-attempted through the distal cut-end of the trachea in the face of airway failure. A quick initial assessment and anticipation of a failed airway should always be the top priority in any emergency physician managing these cases. Direct intubation through the laceration wound might be the only option when all else fail and your patient is crashing.

The Morel-Lavallee lesion is a rare soft tissue injury that occurs due to traumatic shearing force on skin surface causing separation of skin and subcutaneous tissue resulting in hematoma. This case report depicts a 22-year-old gentleman who was involved in a motor vehicle accident. He complained of pain and swelling over lower back. He was treated for soft tissue injury and admitted for pain control. One day post-trauma, he complained of increased swelling over the back. His hemoglobin dropped from 12.2g/dL to 10.7g/dL. Diagnosis of Morel-Lavallae lesion was made. Initially no surgical intervention was planned. However, in view of worsening of swelling, bedside aspiration was performed and subsequently a pigtail catheter was inserted to drain the hematoma. In total, 2.05 litre of liquefied hematoma was drained. Thus, Morel-Lavallee lesion is an uncommon soft tissue injury that can cause significant bleeding following trauma.

Hemichorea-hemiballismus (HC-HB) is a movement disorder characterized by involuntary movements involving limbs on one side of the body. Many etiological factors were identified and these included stroke, infection, and neoplasm. However, acute hyperglycemia-induced HC-HB is less well known. We present two cases of non-ketotic hyperglycemia-induced HC-HB. The cases depicted here Illustrate that HC-HB can be the sole presentation from among a variety of neurological manifestations of poorly controlled diabetes which can be easily reversed when hyperglycemia is corrected.

Bystander rate of cardiopulmonary resuscitation (CPR) is still low worldwide because of inadequate skills and knowledge. Training the public on CPR is one of the methods to increase the bystander CPR rate. This study aimed to compare the efficacy in acquiring and retaining CPR skills and knowledge among secondary school students in Klang Valley trained by school teachers and medical students. We recruited five school teachers and five medical students as trainers. They were trained in several sessions by American Heart Association (AHA)-certified instructors using the video-assisted CPR training module. The recipients were 44 secondary school students divided between the teacher’s group and the medical student’s group. We compared knowledge and psychomotor skills between these two groups prior, immediately after and at three months after CPR training. Students in the teacher’s group showed a higher increase in knowledge comparable to the medical student’s group (median score difference 3 vs 2, p>0.05) and in psychomotor skill (median score difference 5 vs. 7, p<0.05). The level of knowledge and skills decreased after 3 months but remained significantly higher than at baseline for both groups. In conclusion, teachers could provide CPR training to their students as effective and retainable as medical students. This study aims to create an opportunity to teach CPR to the public in a larger scale.

Aged ; Endovascular Procedures ; methods ; Heart Valve Prosthesis Implantation ; methods ; Humans ; Male ; Mitral Valve Insufficiency ; diagnosis ; surgery ; Reoperation ; Singapore