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. 2017 Mar 5;130(5):516-521.
doi: 10.4103/0366-6999.200551.

Postprocedural Outcomes and Risk Factors for Arrhythmias Following Transcatheter Closure of Congenital Perimembranous Ventricular Septal Defect: A Single-center Retrospective Study

Li-Jian Zhao  1 , Bo Han  1 , Jian-Jun Zhang  1 , Ying-Chun Yi  1 , Dian-Dong Jiang  1 , Jian-Li Lyu  1
Affiliations

Postprocedural Outcomes and Risk Factors for Arrhythmias Following Transcatheter Closure of Congenital Perimembranous Ventricular Septal Defect: A Single-center Retrospective Study

Li-Jian Zhao et al. Chin Med J (Engl). .

Abstract

Background: Currently, transcatheter closure of perimembranous ventricular septal defect (pmVSD) is a widely accepted therapeutic modality. However, arrhythmias, especially postprocedural heart blocks, are a concern and outcomes are not very clear. This study explored the outcomes and risk factors of arrhythmias associated with transcatheter device closure of pmVSD.

Methods: A total of 395 patients diagnosed with pmVSD who successfully underwent transcatheter intervention between January 2010 and December 2015 in our center were retrospectively reviewed. Electrocardiographic data before and after the procedure were collected and analyzed. We first evaluated the potential risk factors including gender, age, weight, inlet and outlet diameters of defect, subaortic rim length, occluder size, corrected occluder size into body surface area, fluoroscopy time, presence of aneurysm, and deployment position. We compared the potential risk factors between arrhythmia and nonarrhythmia groups using univariate analysis, followed by logistic analysis for independent risk factors.

Results: Various arrhythmias were detected in 95 cases (24.1%) following transcatheter closure procedure. Logistic regression analysis revealed that eccentric (odds ratio [OR] 2.9, 95% confidence interval [CI]: 1.2-7.2) and large occluders (OR 2.0, 95% CI: 1.6-2.5), as well as long fluoroscopy time (OR 1.1, 95% CI: 1.1-1.2), were correlated with postprocedural arrhythmia. During 35.5 months (range: 9-80 months) of follow-up, most of the patients (74 out of 95) reverted to normal heart rhythm.

Conclusions: The mid-term outcome of patients with arrhythmias after transcatheter closure of pmVSD was satisfactory as most of the patients recovered normal rhythm. Eccentric, large device and long fluoroscopy time increase the risk of arrhythmias after transcatheter closure of pmVSD.

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Conflict of interest statement

There are no conflicts of interest.

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