A novel and simple method using pocket-sized echocardiography to screen for aortic stenosis

Area of Science:

• Cardiology
• Medical Imaging
• Diagnostic Tools

Background:

• Aortic stenosis (AS) screening can be initiated with pocket-sized echocardiography.
• Evaluating a new, simple method using pocket-sized echocardiography for AS screening is crucial.

Purpose of the Study:

• To assess the utility of a novel, simple pocket-sized echocardiography method for screening aortic stenosis (AS).

Main Methods:

• 130 subjects with systolic ejection murmur or known AS were evaluated.
• A visual AS score was derived from pocket-sized echocardiography of aortic cusp opening (0-2 scale).
• Severe AS was defined as aortic valve area index <0.60 cm(2)/m(2); moderate to severe AS as 0.60-0.85 cm(2)/m(2) via high-end echocardiography.

Main Results:

• For severe AS, visual AS score ≥ 4 showed 85% sensitivity and 89% specificity.
• For moderate to severe AS, visual AS score ≥ 3 demonstrated 84% sensitivity and 90% specificity.
• The visual AS score's area under the curve (0.946 for severe AS, 0.936 for moderate to severe AS) outperformed physical examination and aortic valve calcification scoring.

Conclusions:

• A novel, simple pocket-sized echocardiography method is effective for rapid AS grading.
• This technique is particularly useful in patients presenting with systolic ejection murmur.