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Updated: Apr 22, 2026

Echocardiographic Evaluation of Atrial Communications before Transcatheter Closure

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Does surgically induced right bundle branch block really effect ventricular function in children after ventricular

Cem Karadeniz¹, Semra Atalay, Fikri Demir

¹Departmet of Pediatric Cardiology, School of Medicine, Ankara University, Cebeci, 06620, Ankara, Turkey, karadenizcem@yahoo.com.

Pediatric Cardiology

|October 9, 2014

Summary

Right bundle branch block (RBBB) may indicate right ventricular dysfunction in patients after surgical ventricular septal defect (VSD) repair. Biventricular dysfunction can occur post-VSD repair, with tissue Doppler imaging detecting subclinical issues.

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Area of Science:

Cardiology
Pediatric Cardiology
Echocardiography

Background:

Surgical repair of ventricular septal defects (VSD) is common.
Right bundle branch block (RBBB) can occur after VSD repair.
Long-term effects on biventricular function require further investigation.

Purpose of the Study:

To assess left and right ventricular function in patients with repaired VSD.
To investigate the impact of RBBB on ventricular function post-VSD repair.
To compare ventricular function in operated patients with and without RBBB against healthy controls.

Main Methods:

Prospective study including 53 patients with repaired VSD and 52 healthy controls.
Electrocardiography and conventional/tissue Doppler echocardiography were performed.
Comparison of echocardiographic parameters between groups: VSD repair with RBBB, VSD repair without RBBB, and controls.

Main Results:

RBBB detected in 37.7% of operated patients.
Patients with RBBB showed decreased right ventricular fractional area change.
Operated patients exhibited impaired systolic and diastolic function (tricuspid annular plane systolic excursion, myocardial velocities) and elevated myocardial performance indices compared to controls, irrespective of RBBB.

Conclusions:

RBBB may be associated with right ventricular dysfunction following surgical VSD repair.
Biventricular systolic and diastolic dysfunction can develop post-VSD repair, even without RBBB.
Tissue Doppler echocardiography is valuable for detecting subclinical biventricular dysfunction in these patients.