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中华心脏与心律电子杂志 ›› 2022, Vol. 10 ›› Issue (02) : 101 -105. doi: 10.3877/cma.j.issn.2095-6568.2022.02.007

所属专题: 总编推荐

无导线起搏器

无导线起搏器单中心植入及中长期随访分析
何浪1,(), 曾光1, 邹卓艺1, 李世强1, 王审1, 许峥贵1   
  1. 1. 310012 杭州,浙江绿城心血管病医院心脏中心
  • 收稿日期:2022-05-04 出版日期:2022-06-25
  • 通信作者: 何浪

Safety and efficacy of leadless pacemaker: a medium to long-term follow-up analysis from a single center

Lang He1,(), Guang Zeng1, Zhuoyi Zou1, Shiqiang Li1, Shen Wang1, Zhenggui Xu1   

  1. 1. Heart Center of Zhejiang Greentown Cardiovascular Hospital,Hangzhou 310013, China
  • Received:2022-05-04 Published:2022-06-25
  • Corresponding author: Lang He
引用本文:

何浪, 曾光, 邹卓艺, 李世强, 王审, 许峥贵. 无导线起搏器单中心植入及中长期随访分析[J/OL]. 中华心脏与心律电子杂志, 2022, 10(02): 101-105.

Lang He, Guang Zeng, Zhuoyi Zou, Shiqiang Li, Shen Wang, Zhenggui Xu. Safety and efficacy of leadless pacemaker: a medium to long-term follow-up analysis from a single center[J/OL]. Chinese Journal of Heart and Heart Rhythm(Electronic Edition), 2022, 10(02): 101-105.

目的

分析无导线起搏器的临床应用情况及随访结果,探讨其安全性和有效性。

方法

纳入2019年12月至2021年5月在浙江绿城心血管病医院心脏中心植入无导线起搏器的患者,记录植入适应证,手术时间,X线曝光时间及曝光量,术中、出院前、术后1、3、6、12个月起搏电学参数(阈值、感知、阻抗)及不良事件,同时观察随访期间氨基末端脑钠肽前体(NT-proBNP)及左心室射血分数(LVEF)的变化。

结果

共入选20例患者,年龄(70.56±16.39)岁,其中男8例,手术时间(39.60±12.97)min,X线曝光时间(6.31±3.32)min,X线曝光量(151.30±34.95)mGy。植入时电学参数:阻抗(764±181)Ω、感知(9.0±2.5)mV、阈值(0.53±0.17)V/0.24 ms;围术期发生1例少量心包积液,保守治疗后好转。所有患者均完成12个月随访,随访时间(19.0±7.4)个月,其中4例完成术后24个月随访。随访期间起搏电学参数均稳定,无并发症发生;3例患者起搏比例>40%,LVEF轻度下降,但差异无统计学意义(61.5%对59.7%,P=0.05),NT-proBNP有升高趋势(335.6 pg/ml对507.5 pg/ml,P<0.05),其余患者LVEF及NT-proBNP均无明显变化。

结论

无导线起搏器可安全、有效地应用于临床,起搏电学参数理想且稳定;心功能指标可考虑作为高比例起搏患者的随访内容之一。

Objective

To evaluate the safety and efficacy of leadless pacemaker by analyze the medium to long-term follow-up results from a single center.

Methods

Patients underwent the leadless pacemaker in Heart Center of Zhejiang Greentown Cardiovascular Hospital from December 2019 to May 2021 were enrolled. The indication, operation time, X-ray exposure time were recorded. The pacing parameters (threshold, amplitude, impedance) and adverse events were collected during procedure, before discharge and 1, 3, 6, 12 months after implantation. The N-terminal pro-B-type natriuretic peptide (NT-proBNP) and left ventricular ejection fraction (LVEF) were analyzed as well.

Results

Totally 20 patients were enrolled with successful pacemaker implantation. The average age was (70.56±16.39) years old. And 8 patients (40%) were male. The average operation time was (39.60±12.97) minutes, and the average X-ray exposure time was (6.31±3.32) minutes. The average X-ray exposure was (151.30±34.95) mGy. The parameters during procedure: the average impedance was (764±181) Ω, the average amplitude was (9.0±2.5) mV , and the average threshold was (0.53±0.17) V/0.24 ms. One patient suffered mild pericardial effusion during peri-operation period and improved by conservative treatment. All patients finished 12 months follow-up, and 4 of which finished 24 months. The average follow-up time is (19.0±7.4) months. The electrical parameters were stable during follow-up, and no complication occurred. The pace percent of three cases was greater than 40%. LVEF decreased mildly with no statistical significance (61.5% vs. 59.7%, P=0.05). NT-proBNP was increased (335.6 pg/ml vs. 507.5 pg/ml, P <0.05). The LVEF and NT-proBNP of the remaining patients had no obvious change.

Conclusion

Leadless pacemaker can be safely and effectively used in patients with bradycardia. Heart function can be one of the follow-up contents in patient with high pace percent.

表1 20例无导线起搏器植入患者的基线资料
图1 20例无导线起搏器植入患者术中及术后随访期间起搏电学参数趋势图
图2 20例无导线起搏器植入患者随访期间LVEF及NT-proBNP趋势图LVEF为左心室射血分数;NT-proBNP为氨基末端脑钠肽前体
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