title: A randomized comparison of fluoroscopic techniques for implanting pacemaker lead on the right ventricular outflow tract septum.
abstract: Right ventricular outflow tract (RVOT) septal pacing is commonly performed under the standard fluoroscopic positions during procedure. The aim of the prospective, randomized study was to evaluate the accuracy of the combination of standard fluoroscopic and left lateral (LL) fluoroscopic views for determination of RVOT septal position compared with standard fluoroscopic views alone. We prospectively enrolled patients who had indications for implantation of a permanent pacemaker. Patients were randomly assigned into two groups based on intraoperative fluoroscopic views as follows: LL group (three standard fluoroscopic views + LL fluoroscopic view) or standard group (three standard fluoroscopic views). Transthoracic echocardiography (TTE) determination of pacing sites was applied in all patients 3 days after pacemaker implantation. The implantation success rate of RVOT septal pacing was compared between groups. A total of 143 patients (59 males, mean age 57.6 ± 16.3 years) with symptomatic bradyarrhythmia were studied, of whom, 72 patients were randomized to LL group and 71 to standard group. TTE determination of pacing sites was compared with two groups. In the LL group, 60 patients (83 %) were achieved in RVOT septal position. In the standard group, however, the position of RVOT septum was only observed in 48 patients (68 %). The success rate of RVOT septal position in LL group was significantly higher than standard group (p = 0.029). Comparing to traditional views, combining LL view in the procedure will approve the accuracy of RVOT septal pacing site.
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Dongli
authors.initials: D
authors.lastname: Chen
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Huiqiang
authors.initials: H
authors.lastname: Wei
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China. gladys_tang@foxmail.com.
authors.forename: Jiaojiao
authors.initials: J
authors.lastname: Tang
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China. lie_liu@hotmail.com.
authors.forename: Lie
authors.initials: L
authors.lastname: Liu
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Shulin
authors.initials: S
authors.lastname: Wu
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Chunying
authors.initials: C
authors.lastname: Lin
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Qianhuan
authors.initials: Q
authors.lastname: Zhang
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Yuanhong
authors.initials: Y
authors.lastname: Liang
authors.affiliation: Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510000, Guangdong, China.
authors.forename: Silin
authors.initials: S
authors.lastname: Chen
mesh_terms: D000328:Adult; D000368:Aged; D001919:Bradycardia / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D002304:Cardiac Pacing, Artificial / Q000009:adverse effects / Q000379:methods*; D002681:China; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D005471:Fluoroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial; D011237:Predictive Value of Tests; D011446:Prospective Studies; D015641:Radiography, Interventional / Q000009:adverse effects / Q000379:methods*; D015203:Reproducibility of Results; D013997:Time Factors; D016896:Treatment Outcome; D054088:Ventricular Septum / Q000000981:diagnostic imaging* / Q000503:physiopathology
keywords: Alternative site pacing; Echocardiography; Fluoroscopy; Right ventricular outflow tract septal pacing