Subxiphoid M-mode echocardiography in atrioventricular defects

Area of Science:

• Pediatric Cardiology
• Echocardiography
• Congenital Heart Defects

Background:

• Atrioventricular defects are complex congenital heart conditions.
• Accurate anatomical assessment is crucial for effective management.
• Echocardiography is a primary diagnostic tool in pediatric cardiology.

Purpose of the Study:

• To compare the efficacy of subxiphoid versus parasternal M-mode echocardiography.
• To evaluate the clarity of anatomical definition for atrioventricular defects.
• To assess the diagnostic utility of the subxiphoid approach in pediatric patients.

Main Methods:

• M-mode echocardiograms were performed using both subxiphoid and parasternal transducer positions.
• The study included 21 children diagnosed with atrioventricular defects.
• Image acquisition and anatomical correlation were systematically analyzed.

Main Results:

• The subxiphoid approach provided clearer visualization of atrioventricular valve orifices.
• Complete atrioventricular defects showed a single common orifice straddling the ventricular septum.
• Partial atrioventricular defects demonstrated two distinct orifices separated by a septum.
• The subxiphoid view facilitated superior anatomical definition compared to the parasternal view.

Conclusions:

• The subxiphoid echocardiographic approach offers superior clarity in defining the anatomy of atrioventricular defects in children.
• This technique enhances the diagnostic assessment of both complete and partial atrioventricular canal defects.
• The subxiphoid view is recommended for improved visualization and diagnosis.