Velocity-Time Integral of Aortic Regurgitation: A Novel Echocardiographic Marker in the Evaluation of Aortic Regurgitation Severity.

Background: Echocardiography is essential for the diagnosis and quantification of aortic regurgitation (AR). Velocity-time integral (VTI) of AR flow could be related to AR severity.

Objective: This study aims to assess whether VTI is an echocardiographic marker of AR severity.

[Usefulness of clinical profiling and exercise testing in the prognostic assessment of patients admitted with chest pain but without high-risk criteria].

Introduction And Objectives: Few data are available on the outcome of patients admitted to hospital with suspected acute coronary syndrome who have no high-risk factors and who undergo exercise testing before discharge. Our objectives were to investigate outcomes in this group of patients and to determine whether clinical history-taking or exercise testing can help to predict outcome.

Patients And Method: The study population comprised 449 patients admitted to hospital with chest pain suggestive of acute coronary syndrome.

Prognosis of patients with unstable angina and low-risk exercise test: significance of ST-segment depression on the admission ECG.

The presence of ST-segment depression on the admission electrocardiogram (ECG) is an important predictor of poor outcome in patients with unstable angina. On the other hand, patients with unstable angina who undergo a low-risk exercise test are supposed to have a favorable prognosis. The objective of the study was to determine the prognostic significance of ST-segment depression on the admission ECG in patients with unstable angina who undergo an exercise test that indicates a low risk of events.