Affiliations: [a] Emergency Medicine Unit, S. Andrea Hospital, Sapienza University of Rome, Rome, Italy
| [b] Internal Medicine Unit, S. Andrea Hospital, Sapienza University of Rome, Rome, Italy
| [c] Radiology Unit, S. Andrea Hospital, Sapienza University of Rome, Rome, Italy
Correspondence:
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Corresponding author: Antonio Martocchia, MD, PhD, S.Andrea Hospital, Sapienza University of Rome, Via di Grottarossa 1035, 00189 Rome, Italy. E-mail: antonio.martocchia@uniroma1.it.
Note: [1] A. Martocchia and S. Ialungo are equal contributors.
Abstract: OBJECTIVE:This study aims to evaluate the bedside use of the pocket-sized ultrasound (US) device for the detection of the intracavitary effusions. METHODS:We randomly enrolled 40 patients admitted to S. Andrea Hospital of Rome. Every patient received a clinical and biochemical evaluation and a bedside US examination to detect and estimate the intracavitary (pleural, pericardial and intra-abdominal) effusions; the US measurements have been compared to the computed tomography (CT) scans (as gold standard). RESULTS:The patients presented a high prevalence of effusions: right pleural 16/40 = 40% (esteemed volume 236.3±500.7 ml, mean±standard deviation m±SD), left pleural 8/40 = 20% (127.0±377.4 ml), pericardial 12/40 = 30% (47.5±72.8 ml) and intra-abdominal effusions 5/40 = 12.5% of cases (110.9±600.6 ml). Linear regression analysis showed a significant correlation between US and CT measurements: pleural r = 0.973 p < 1×10–38, pericardial r = 0.927 p < 1×10–39, intra-abdominal space r = 0.921 p < 1×10–59. The accuracy of the bedside US at the pleural, pericardial and abdominal level was respectively 98%, 93% and 96% (Cohen’s kappa coefficient 0.966, 0.841 and 0.833). CONCLUSIONS:The present study showed a high prevalence of the intracavitary effusions and a high accuracy of the bedside US. The bedside US by a pocket-sized device is promising tool for its advantages of reproducibility and non-invasiveness of the device.
