Screening of Native Valvular Heart Disease Using a Pocket-Sized Transthoracic Echocardiographic Device

Area of Science:

• Cardiology
• Medical Imaging
• Diagnostic Tools

Background:

• Early diagnosis of valvular heart disease (VHD) is crucial for timely management and therapeutic strategy.
• Assessing VHD early presents a diagnostic challenge in clinical practice.

Purpose of the Study:

• To evaluate the performance of pocket-sized transthoracic echocardiography (pTTE) for VHD screening.
• To compare pTTE against standard transthoracic echocardiography (sTTE) and auscultation for VHD detection.

Main Methods:

• A study involving 284 unselected patients where sTTE, pTTE, and auscultation were performed by experienced physicians.
• Standard transthoracic echocardiography (sTTE) served as the gold standard for comparison.
• Physicians were blinded to the results of other examinations to ensure unbiased assessment.

Main Results:

• Pocket-sized transthoracic echocardiography (pTTE) demonstrated high sensitivity (85.7%) and specificity (97.9%) for VHD screening.
• All significant VHD cases (mild severity or greater) were identified by pTTE.
• Agreement between pTTE and sTTE was good for mitral regurgitation (κ=0.71) and excellent for aortic regurgitation (κ=0.97) and aortic stenosis (κ=0.98).

Conclusions:

• Pocket-sized transthoracic echocardiography (pTTE) is a reliable method for identifying significant VHD.
• pTTE, when performed by physicians with level III competency, is recommended as a novel screening tool for VHD.
• The findings support the integration of pTTE into early VHD screening protocols.