Severe diastolic dysfunction as a clue to the cause of stroke: a case report.

Background: The echocardiographic determination of cardiac causes of stroke focuses on the presence of left ventricular thrombus, valvular vegetations, and patent foramen ovale. Transoesophageal echocardiogram (TEE) is indicated when the transthoracic echocardiogram (TTE) is inconclusive or when there is clinical suspicion of cardiac causes that may have been missed by TTE. The presence of severe diastolic dysfunction on TTE in the absence of any other cardiac abnormality or cardiac history is not usually considered a clue to the cause of stroke.

Blinded, randomized trial of sonographer versus AI cardiac function assessment.

Artificial intelligence (AI) has been developed for echocardiography, although it has not yet been tested with blinding and randomization. Here we designed a blinded, randomized non-inferiority clinical trial (ClinicalTrials.gov ID: NCT05140642; no outside funding) of AI versus sonographer initial assessment of left ventricular ejection fraction (LVEF) to evaluate the impact of AI in the interpretation workflow.

Dissimilar Atrial Rhythms Seen by Transesophageal Echocardiography During an Electrophysiology Study.

Dissimilar atrial rhythms describe the coexistence of atrial fibrillation in one atrium and a more regular rhythm in the other. Electrograms are typically used to diagnose this rare entity. The use of transesophageal echocardiography in this context has not been described previously.