Multi-organ Clinical Ultrasound As a Complement to the Diagnostic Process in an Internal Medicine Consultation

Introduction: Evaluating outpatient cases in internal medicine consultations presents a significant diagnostic challenge. Ultrasound can be a highly useful tool in assessment and decision-making. Patients and Methods: A prospective observational study was conducted on a cohort of patients attending an internal medicine rapid assessment clinic. Eighty patients were prospectively recruited. A medical consultation was conducted as per usual clinical practice, followed by a POCUS evaluation; collecting pulmonary, cardiac, and abdominal data. All findings were analyzed and recorded, particularly those that were significant or altered the initial diagnosis, subsequent tests, or treatment. Results: Significant ultrasound findings were found in 37.5% of the patients. Of all ultrasound scans, the most clinically relevant were in the heart region (31.9%), followed by the abdomen (26%). These findings led to a change in overall management in 27.5% of patients. Using logistic regression, a model was developed to estimate the presence of clinically relevant findings with an area under the curve (AUC) of 0.78 (95% CI 0.66-0.89; p < 0.001) with 80% Sensitivity and 66% Specificity. Conclusion: The systematic and standardized incorporation of clinical ultrasound in internal medicine consultations contributes to decision-making, can provide significant findings that allow for modifications in clinical suspicion and therapeutic management.