Prehospital chest emergency sonography trial in Germany: a prospective study

Albrecht Neesse, Andreas Jerrentrup, Saskia Hoffmann, Alexander Sattler, Christian Görg, Clemens Kill, Thomas Mathias Gress, Steffen Kunsch
European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine 2012, 19 (3): 161-6

OBJECTIVES: To examine the feasibility and diagnostic value of a novel prehospital chest ultrasound algorithm in patients with dyspnea.

METHODS: Sixty-two patients (32 men, 30 women, mean 67.1 years, range 20-90 years) with acute dyspnea prospectively underwent chest sonography with a portable ultrasound device. The algorithm included five sectional views (four-chamber subxyphoidal view, left and right laterodorsal view, left and right anterior intercostal space two to four view) screening for pleural and pericardial effusion, right heart distension, and pneumothorax. The prehospital sonographic findings were confirmed by chest radiograph, ultrasonography, and clinical follow-up in the emergency department.

RESULTS: Prehospital chest emergency sonography trial was completed in 56 patients. Mean examination time was 2 min, and no scan took longer than 5 min. Sonography was easily integrated in the prehospital workflow alongside paramedic treatment without delay of treatment or transport. The most common diagnoses associated with acute dyspnea were (a) acute coronary syndrome (n=12, 21%), (b) decompensated congestive heart failure (CHF) (n=11, 20%), and (c) chronic obstructive pulmonary disease (COPD) (n=10, 18%). Pleural effusion was detected in 100% of CHF, 17% of acute coronary syndrome, and 20% of COPD patients, constituting a highly significant parameter in the differential diagnosis (P<0.01). Ultrasonography provided a helpful tool in n=38 (68%), and additional therapeutic consequences were drawn in n=14 (25%).

CONCLUSION: Prehospital chest emergency sonography trial is a novel prehospital ultrasound algorithm for patients with dyspnea. Pleural effusion may serve as a novel prehospital marker for patients with decompensated CHF, thus facilitating the often difficult differential diagnosis between CHF and COPD.

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