Focused cardiac ultrasound is not mini-echocardiography in the full cardiology sense. It is a limited bedside examination designed to answer specific clinical questions using standardised views and protocols. When framed that way, it becomes extremely useful.
A handheld probe can often answer whether there is a pericardial effusion, whether left ventricular systolic function appears grossly reduced, whether the right ventricle looks markedly abnormal in a critically ill patient, or whether the overall picture suggests a broad haemodynamic problem that needs urgent escalation.
Handheld focused cardiac ultrasound does not replace a full echocardiographic study when the clinician needs quantitative measurements, detailed valvular assessment, nuanced diastolic evaluation, congenital or structural detail, or a definitive cardiology-quality report.
Recent guidance for FoCUS emphasizes standardized limited protocols and education. The strength of bedside cardiac ultrasound lies in asking narrow questions well and escalating appropriately when the answer is uncertain, abnormal, or beyond bedside scope.
A handheld probe can provide important real-time cardiac information at the bedside, especially when the clinical question is urgent and focused. Its value is maximized when clinicians are disciplined about what they are — and are not — claiming from a FoCUS examination.
Dr Yahya Docrat is an anaesthetist based in Johannesburg, South Africa, with clinical experience in perioperative medicine and point-of-care ultrasound applications in anaesthesia, emergency medicine and critical care.