Bedside ultrasonography by emergency physicians for anterior talofibular ligament injury.

OBJECTIVE: Our objective was to study the accuracy of emergency physician (EP) performed bedside ultrasonography (BUS) in patients with suspected anterior talofibular ligament (ATFL) injury. MATERIALS AND METHODS: After a 6-h training program, from January to December 2011, an EP used BUS to prospectively evaluate patients presenting to the emergency department (ED) with suspected ATFL injury. Then, patients underwent ankle X-ray and Magnetic Resonance (MR) imaging. Outcome was determined by official radiology reports of the MR imaging. BUS and MR imaging results were compared using Chi-square testing. RESULTS: Of the 65 enrolled patients, 30 patients were BUS positive. Of these, MR imaging results agreed with the BUS findings in 30 patients. In 35 cases, BUS was negative, and 33 of these were corroborated by MR imaging. The sensitivity, specificity, positive predictive value, negative predictive value, and negative likelihood ratio for BUS were 93.8%, 100%, 100%, 94.3%, and 0.06%, respectively. The diagnostic accuracy of BUS was not statistically different from MR imaging (K = 0.938, P = 0.001). CONCLUSION: BUS for the diagnosis of ATFL injury is another application of BUS in the ED. EPs can diagnose ATFL injury using BUS with a high degree of accuracy.

Red flag in bedside echocardiography for acute pulmonary embolism: remembering McConnell's sign.

Dyspnea is a common symptom among emergency department (ED) patients. The differential diagnosis of dyspnea in ED patients is broad, and pulmonary embolism (PE) is a crucial consideration among these. Recognition of right ventricular (RV) dysfunction is critical in patients with PE. Here, we present a 76-year-old male patient with the complaint of dyspnea. Focused cardiac ultrasonography performed by the emergency physician revealed enlarged RV, hypokinetic lateral wall and hyperkinetic apex of RV (McConnell's sign). We have screened the deep venous system of the patient with the linear probe for possible deep venous thrombosis and showed that the right dilated uncompressible popliteal vein had a thrombus formation. Computed tomography angiography of the thorax revealed filling defects in both main pulmonary arteries. Our case shows that bedside ultrasonography is a valuable tool for detecting PE and decision making in PE patients.

The prognostic value of cystatin C compared with trauma scores in multiple blunt trauma: a prospective cohort study.

BACKGROUND: Many scoring systems have been developed to predict the prognosis of the traumatized patients in Emergency Departments, and the necessary calculations make complex scoring systems difficult to use as a part of the initial trauma patient assessment, and they also have limited accuracy. STUDY OBJECTIVE: This study compares the accuracy of cystatin C with trauma scoring systems in predicting the mortality of trauma patients. METHODS: Serum cystatin C levels were measured upon arrival in consecutive adult multiple blunt trauma patients during a 12-month period. Correlation analysis was used to assess the relationship between Injury Severity Score (ISS), Revised Trauma Score (RTS), Glasgow Coma Scale (GCS) Score, and cystatin C. Trauma scores and cystatin C were used in Cox regression models to predict trauma patients' risk of death. RESULTS: During the study period, 153 patients were enrolled and 18 died. There were negative correlations between cystatin C levels and the GCS (r = -0.666, p < 0.001) as well as the RTS (r = -0.229, p = 0.004). A moderate correlation was found between the ISS and the cystatin C level (r = 0.492, p < 0.001). In Cox regression models, every increase in units of cystatin C levels and ISS (the cut-off levels were 0.93 mg/L and ≥ 16, respectively) results in a 4.22- and 1.068-fold increase in mortality, respectively. CONCLUSION: Cystatin C may represent an important severity-of-illness indicator, easily available to clinicians during the initial assessment of trauma victims on admission.