Journal of Emergencies, Trauma, and Shock
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Year : 2018  |  Volume : 11  |  Issue : 2  |  Page : 125-129

Bedside lung ultrasound in emergency protocol as a diagnostic tool in patients of acute respiratory distress presenting to emergency department

Department of Emergency Medicine, B.J. Medical College and Civil Hospital, Ahmedabad, Gujarat, India

Correspondence Address:
Dr. Hardik B Bhatt
H-83, Sachin Tower, 8th Floor, Shyamal, Anandnagar 100ft road, Beside Dhananjay Tower, Satellite, Ahmedabad - 380 015, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/JETS.JETS_21_17

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Objective: The objective of this study is to determine the accuracy of the bedside lung ultrasound in emergency (BLUE) protocol in giving a correct diagnosis in patients presenting with acute respiratory distress in emergency department. Materials and Methods: Patients with acute respiratory distress were evaluated. Ultrasound findings such as artifacts (A line, B line), lung sliding, alveolar consolidation or pleural effusion, and venous analysis were recorded. Ultrasonography findings were correlated with final diagnosis made by the treating unit. Sensitivity and specificity were calculated. Results: A total 50 patients were evaluated. The A profile (predominant A line with lung sliding) indicated chronic obstructive pulmonary disease/asthma (n = 14) with 85.17% sensitivity and 88.88% specificity. B profile (predominant B + lines with lung sliding) indicated pulmonary edema (n = 13) with 92.30% sensitivity and 100% specificity. The A/B profile (A line on one side and B + line on other side) and the C profile (anterior consolidation) and the A profile plus posterolateral alveolar and/or pleural syndrome indicated pneumonia (n = 17) with 94.11 sensitivity and 93.93% specificity. The A profile plus venous thrombosis indicated pulmonary embolism (n = 1) with 100% sensitivity and specificity. A' profile (predominant A line without lung sliding) with lung point indicated pneumothorax (n = 5) with 80% sensitivity and 100% specificity. Conclusion: BLUE protocol was successful in average 90.316% cases. BLUE performed in emergency department is equivalent to computed tomography scan. BLUE protocol aids in making diagnosis and saves time and cost; avoids the side effects related to radiation.

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