The change of QRS duration after pulmonary valve replacement in patients with repaired tetralogy of Fallot and pulmonary regurgitation / 소아과
Korean Journal of Pediatrics
;
: 362-365, 2018.
Artículo
en Inglés
| WPRIM
| ID: wpr-718235
ABSTRACT
PURPOSE:
This study aimed to analyze changes in QRS duration and cardiothoracic ratio (CTR) following pulmonary valve replacement (PVR) in patients with tetralogy of Fallot (TOF).METHODS:
Children and adolescents who had previously undergone total repair for TOF (n=67; median age, 16 years) who required elective PVR for pulmonary regurgitation and/or right ventricular out tract obstruction were included in this study. The QRS duration and CTR were measured pre- and postoperatively and postoperative changes were evaluated.RESULTS:
Following PVR, the CTR significantly decreased (pre-PVR 57.2%±6.2%, post-PVR 53.8%±5.5%, P=0.002). The postoperative QRS duration showed a tendency to decrease (pre-PVR 162.7±26.4 msec, post-PVR 156.4±24.4 msec, P=0.124). QRS duration was greater than 180 msec in 6 patients prior to PVR. Of these, 5 patients showed a decrease in QRS duration following PVR; QRS duration was less than 180 msec in 2 patients, and QRS duration remained greater than 180 msec in 3 patients, including 2 patients with diffuse postoperative right ventricular outflow tract hypokinesis. Six patients had coexisting arrhythmias before PVR; 2 patients, atrial tachycardia; 3 patients, premature ventricular contraction; and 1 patient, premature atrial contraction. None of the patients presented with arrhythmia following PVR.CONCLUSION:
The CTR and QRS duration reduced following PVR. However, QRS duration may not decrease below 180 msec after PVR, particularly in patients with right ventricular outflow tract hypokinesis. The CTR and ECG may provide additional clinical information on changes in right ventricular volume and/or pressure in these patients.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Arritmias Cardíacas
/
Válvula Pulmonar
/
Insuficiencia de la Válvula Pulmonar
/
Taquicardia
/
Tetralogía de Fallot
/
Complejos Prematuros Ventriculares
/
Complejos Atriales Prematuros
/
Implantación de Prótesis de Válvulas Cardíacas
/
Electrocardiografía
Límite:
Adolescente
/
Niño
/
Humanos
Idioma:
Inglés
Revista:
Korean Journal of Pediatrics
Año:
2018
Tipo del documento:
Artículo
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