The Absence of Atrial Contraction as a Predictor of Permanent Pacemaker Implantation after Maze Procedure with Cryoablation
The Korean Journal of Thoracic and Cardiovascular Surgery
;
: 163-170, 2017.
Article
Dans Anglais
| WPRIM
| ID: wpr-111252
ABSTRACT
BACKGROUND:
The absence of atrial contraction (AC) after the maze procedure has been reported to cause subsequent annular dilatation and to increase the risk of embolic stroke. We hypothesized that the lack of AC could increase the risk of permanent pacemaker (PPM) implantation in patients undergoing the maze procedure.METHODS:
In 376 consecutive patients who had undergone a cryo-maze procedure and combined valve operation, recovery of AC was assessed at baseline and at immediate (≤2 weeks), early (≤1 year, 4.6±3.8 months), and late (>1 year, 3.5±1.1 years) postoperative stages.RESULTS:
With a median follow-up of 53 months, 10 patients underwent PPM implantation. Seven PPM implants were for sinus node dysfunction (pauses of 9.6±2.4 seconds), one was for marked sinus bradycardia, and two were for advanced/complete atrioventricular block. The median (interquartile range) time to PPM implantation was 13.8 (0.5–68.2) months. Our time-varying covariate Cox models showed that the absence of AC was a risk factor for PPM implantation (hazard ratio, 11.92; 95% confidence interval, 2.52 to 56.45; p=0.002).CONCLUSION:
The absence of AC may be associated with a subsequent risk of PPM implantation.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Fibrillation auriculaire
/
Maladie du sinus
/
Bradycardie
/
Modèles des risques proportionnels
/
Facteurs de risque
/
Études de suivi
/
Accident vasculaire cérébral
/
Cryochirurgie
/
Dilatation
/
Bloc atrioventriculaire
Type d'étude:
Etude d'étiologie
/
Étude observationnelle
/
Étude pronostique
/
Facteurs de risque
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
The Korean Journal of Thoracic and Cardiovascular Surgery
Année:
2017
Type:
Article
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