1. Atrial mechanics after surgical repair of tetralogy of Fallot
- Author
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Sophia J. Wong, Yiu-fai Cheung, Jia Hou, and Hong-kui Yu
- Subjects
Male ,medicine.medical_specialty ,Adolescent ,Diastole ,Speckle tracking echocardiography ,Doppler imaging ,Right atrial ,Ventricular Dysfunction, Left ,Left atrial ,Internal medicine ,Medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Heart Atria ,Tetralogy of Fallot ,Cardiac cycle ,business.industry ,Cardiovascular Surgical Procedures ,Mechanics ,Plastic Surgery Procedures ,medicine.disease ,Both atria ,Treatment Outcome ,Echocardiography ,Cardiology ,Elasticity Imaging Techniques ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background Ventricular diastolic dysfunction in patients with repaired tetralogy of Fallot (TOF) may affect atrial mechanics. This study aimed to explore right atrial (RA) and left atrial (LA) mechanics in repaired TOF patients and their relationship with ventricular diastolic function. Methods Fifty-four patients (36 males), aged 17.8 ± 8.3 years, who had undergone TOF repair at 3.9 ± 3.3 years and 40 healthy subjects aged 16.9 ± 6.3 years (P = 0.57) were studied. Right and LA peak positive, peak negative, and total strain, strain rate at ventricular systole (SRs), early diastole (SRed), and atrial contraction (SRac), and electromechanical delay were determined using speckle tracking echocardiography (STE). Ventricular diastolic function was assessed by tissue Doppler imaging and STE. Ventricular volumes and pulmonary regurgitant volume were derived from 3D echocardiography. Results Compared with controls, patients had significantly lower RA and LA peak positive and total strain, SRs, SRed, and SRac (all P
- Published
- 2014