Echocardiography in unstable angina

Area of Science:

• Cardiology
• Diagnostic Imaging
• Prognostic Biomarkers

Background:

• Unstable angina (UA) poses a significant risk for adverse cardiac events.
• Echocardiography is a key imaging modality in cardiovascular assessment.
• The prognostic value of echocardiographic findings in UA requires further elucidation.

Purpose of the Study:

• To investigate the prognostic significance of echocardiographic abnormalities in patients diagnosed with unstable angina.
• To determine if specific echocardiographic parameters can predict clinical outcomes during follow-up.

Main Methods:

• Echocardiograms were performed on 27 male patients with unstable angina at admission and discharge.
• Patients were categorized into two groups based on follow-up clinical status: mild/no angina (Group I) and severe/recurrent angina (Group II).
• The echocardiographic ratio of left ventricular end-diastolic dimension to mitral valve closure time (EDD/PR-AC) was analyzed, along with other echocardiographic parameters.

Main Results:

• The EDD/PR-AC ratio demonstrated significant differences between admission and discharge for both patient groups (p < 0.05).
• An abnormal EDD/PR-AC ratio at discharge was more prevalent in Group II (severe/recurrent angina) compared to Group I (p < 0.05).
• The discharge EDD/PR-AC ratio showed a strong inverse correlation with angiographic ejection fraction (r = 0.79, p < 0.001) in patients who underwent catheterization.

Conclusions:

• The EDD/PR-AC ratio derived from echocardiography holds prognostic value in patients with unstable angina.
• An abnormal discharge EDD/PR-AC ratio may indicate a higher likelihood of adverse clinical outcomes, including angina recurrence or severity.
• This echocardiographic marker could aid in risk stratification and management decisions for unstable angina patients.