Severe aortic stenosis in elderly patients

Area of Science:

• Cardiology
• Geriatric Medicine
• Diagnostic Imaging

Background:

• Severe aortic stenosis is a significant condition in elderly patients requiring accurate diagnosis.
• Non-invasive methods are crucial for evaluating suspected aortic stenosis, but their correlation with invasive measures needs clarification.

Purpose of the Study:

• To compare clinical and non-invasive findings with cardiac catheterization data in elderly patients with suspected severe aortic stenosis.
• To assess the diagnostic accuracy of various non-invasive tests in this population.

Main Methods:

• Retrospective analysis of 91 elderly patients (mean age 65) undergoing cardiac catheterization for suspected severe aortic stenosis.
• Comparison of clinical symptoms (chest pain, dyspnea, syncope), electrocardiogram (ECG), chest X-ray, cineradiography, echocardiography, and exercise testing with catheterization-derived valve area and other hemodynamic data.
• Coronary angiography was performed in 77 patients.

Main Results:

• Catheterization revealed severe aortic stenosis (valve area ≤ 0.6 cm²) in 49 patients. Aortic regurgitation was common (85%), but severe in only 1%.
• Prevalent symptoms included chest pain (77%) and dyspnea (74%). Significant ECG abnormalities (increased QRS amplitude) were seen in 84%.
• Echocardiography showed increased left ventricular wall thickness in 90%. Exercise tests were abnormal in 82% and discordant with NYHA classification in 25%.

Conclusions:

• Clinical and non-invasive findings in elderly patients with suspected severe aortic stenosis largely mirror those in younger populations.
• The presence of multiple indicators strongly suggests severe aortic stenosis, but the absence of any single finding does not exclude the diagnosis.
• Comprehensive evaluation integrating various non-invasive modalities is essential for accurate diagnosis and management planning.