目的 总结GuideLiner^®延长导管在复杂经皮冠状动脉介入治疗(PCI)中的初步经验,探讨其有效性及安全性。方法 选择2015年3月—2017年3月因冠心病于广州市第一人民医院行PCI的患者13例,因复杂病变需要更强支撑力而使用GuideLiner^®延长导管完成手术,总结手术成功率、并发症以及6个月随访主要不良心脏事件的发生情况。结果 13例患者在GuideLiner^®延长导管应用下均成功完成手术。使用延长导管的目的2例手术为辅助球囊通过,7例为辅助支架通过,4例为辅助支架及球囊通过。全部患者均未发生术中及住院期间死亡、急性心肌梗死,未发生急性支架内血栓形成、目标冠脉夹层或穿孔、心包填塞等并发症,6 个月随访均无不良心脏事件发生。结论 应用延长导管可提高支撑力,有效辅助球囊和/或支架到达冠状动脉病变部位,提高手术成功率,安全性较高。

Objective To evaluate the clinical efficacy and safety of GuideLiner^® guide extension catheter during complex coronary percutaneous coronary intervention(PCI) procedures. Methods Thirteen patients with coronary heart diseases performed PCI procedures were included in this study from March 2015 to March 2017. GuideLiner^® guide extension catheters were used in these complex cases. The PCI success rate,incidence of complications and 6-month follow up data were observed. Results Benefited from the stronger support produced by GuideLiner^®, PCI success rate was 100%. The guide extension catheters were used for the delivery of balloons in 2 cases, while 7 cases for stents, and 4 cases for both balloons and stents. No death were observed during the procedure or in hospital, and there were no dissection or acute myocardial infarction. During 6 months of follow-up,there was no major adverse cardiac events (MACE). Conclusion GuideLiner^® guide extension catheter may improve procedure success rate by ensuring the delivery of balloons and stents in complex PCI.

目的 探讨应用56孔冷盐水(STSF)压力导管高功率消融模式治疗老年阵发性房颤患者的有效性和围手术期安全性。方法 回顾性分析广州市第一人民医院2019年1月—2021年6月使用STSF导管高功率消融模式行射频治疗的老年阵发性房颤患者68例(STSF组),匹配同期年龄、性别、左房直径、左室射血分数无差异且使用6孔冷盐水 (ST)压力导管常规功率消融的老年房颤患者71例(ST组),比较2组患者之间的即刻环肺静脉隔离成功率、单圈隔离成功率、手术时间、X线透视时间、消融时间、术中盐水灌注量,以及并发症发生率。结果 2组患者都成功完成环肺静脉电隔离,STSF组单圈隔离成功率与ST组无差异(左侧肺静脉92.6% vs 90.1%,P>0.05;右侧肺静脉83.8% vs 87.3%,P>0.05),与ST组比较,STSF组手术及消融时间缩短[(70.9±10.0)min vs (79.1±14.2)min,P<0.001;(25.4±4.5)min vs(30.5±6.3)min,P<0.001],灌注量更低[(406.5±46.3)mL vs (729.2±106.1)mL;P<0.001],X线透视时间相近[(6.5±2.5)min vs(7.3±2.6)min;P=0.056]。2组围手术期并发症率均较低(2.9% vs 3.9%;P=0.39),STSF组2例术中发生气体爆破,但未引起心包填塞,ST组有2例术后出现心衰,利尿后好转,1例出现持续性胸痛,胃镜提示食道糜烂,予流质饮食及质子泵抑制剂治疗后恢复。结论 应用STSF导管高功率消融模式在老年阵发性房颤患者行肺静脉大环隔离可提高消融效率,减少术中液体负荷,且不增加围手术期风险。

Objective To investigate the effectiveness and perioperative safety of ThermoCool SmartTouch SurroundFlow (STSF) catheter high-power ablation mode in the treatment of elderly patients with paroxysmal atrial fibrillation. Methods A total of 68 elderly patients with paroxysmal atrial fibrillation who used STSF catheter high-power ablation mode (STSF group) in Guangzhou First People's Hospital from January 2019 to June 2021 were analyzed retrospectively. There were 71 elderly patients with atrial fibrillation who had no significant difference in age, sex, left atrial diameter and left ventricular ejection fraction, used ThermoCool SmartTouch (ST) catheters for conventional power ablation (ST group) at the same time. The success rate of immediate circumferential pulmonary vein isolation, single lap isolation, operation time, X-ray fluoroscopy time, ablation time, intraoperative saline perfusion volume and the incidence of complications were compared between the two groups. Results Both groups of patients successfully completed circular pulmonary vein electrical isolation. There was no significant difference in the success rate of single-circle isolation between STSF group and ST group (left pulmonary vein 92.6% vs 90.1%, P>0.05; right pulmonary vein 83.8% vs 87.3%, P>0.05). Compared with ST group, STSF group had shorter operation and ablation time [(70.9±10.0) min vs (79.1±14.2) min, P<0.001; (25.4±4.5) min vs (30.5±6.3) min, P<0.001], lower perfusion volume [(406.5±46.3)mL vs (729.2±106.1)mL, P<0.001], similar X-ray fluoroscopy time [(6.5±2.5)min vs (7.3±2.6)min, P=0.056 ]. The perioperative complication rate of the two groups was low (2.9% vs 3.9%, P=0.39). Two cases of STSF group had steam pops during operation but did not cause pericardial tamponade, and 2 cases of ST group had postoperative heart failure occurred and improved after diuresis. One case developed persistent chest pain, which gastroscope indicated esophageal erosion, and recovered after liquid diet and PPI treatment. Conclusions Using STSF catheter high-power ablation mode to perform pulmonary vein isolation in elderly patients with paroxysmal atrial fibrillation could improve ablation efficiency, reduce intraoperative fluid load, and without increasing perioperative risk.

目的 总结GuideLiner^®延长导管在复杂经皮冠状动脉介入治疗(PCI)中的初步经验,探讨其有效性及安全性。方法 选择2015年3月—2017年3月因冠心病于广州市第一人民医院行PCI的患者13例,因复杂病变需要更强支撑力而使用GuideLiner^®延长导管完成手术,总结手术成功率、并发症以及6个月随访主要不良心脏事件的发生情况。结果 13例患者在GuideLiner^®延长导管应用下均成功完成手术。使用延长导管的目的2例手术为辅助球囊通过,7例为辅助支架通过,4例为辅助支架及球囊通过。全部患者均未发生术中及住院期间死亡、急性心肌梗死,未发生急性支架内血栓形成、目标冠脉夹层或穿孔、心包填塞等并发症,6 个月随访均无不良心脏事件发生。结论 应用延长导管可提高支撑力,有效辅助球囊和/或支架到达冠状动脉病变部位,提高手术成功率,安全性较高。

Objective To evaluate the clinical efficacy and safety of GuideLiner^® guide extension catheter during complex coronary percutaneous coronary intervention(PCI) procedures. Methods Thirteen patients with coronary heart diseases performed PCI procedures were included in this study from March 2015 to March 2017. GuideLiner^® guide extension catheters were used in these complex cases. The PCI success rate,incidence of complications and 6-month follow up data were observed. Results Benefited from the stronger support produced by GuideLiner^®, PCI success rate was 100%. The guide extension catheters were used for the delivery of balloons in 2 cases, while 7 cases for stents, and 4 cases for both balloons and stents. No death were observed during the procedure or in hospital, and there were no dissection or acute myocardial infarction. During 6 months of follow-up,there was no major adverse cardiac events (MACE). Conclusion GuideLiner^® guide extension catheter may improve procedure success rate by ensuring the delivery of balloons and stents in complex PCI.

目的 探讨心肌细胞RyR2和L型钙通道的基因变异与室性心律失常和心源性猝死的相关性。方法 回顾分析2010年1月—2012年12月在我院就诊的慢性心力衰竭患者622例的临床资料,并选取同一时期体检中心体检的健康人群516例作为对照组,门诊或者电话随访记录慢性心力衰竭患者的死亡为终点,通过候选基因分析可能具有相关功能的4个基因变异,rs41315858(G1885E)、rs3766871(G1886S)、rs790896(G>A)和rs723672(T>C),采用Logestic、Cox回归分析对4个候选基因变异进行相关性研究。结果 入选622例慢性心力衰竭患者和516例对照组,基因分析结果显示RyR2上的基因变异rs376687lA等位基因携带可以增加慢性心力衰竭患者发生室性心律失常的风险性;校正可能与该疾病相关的危险因素后,rs376687lA等位基因携带会增加心源性死亡和心源性猝死的风险,RyR2上的基因变异rs790896A等位基因携带可以降低心源性猝死风险。结论 RyR2上的基因变异rs376687lA是室性心律失常和心源性猝死的遗传学预测因子,而rs790896A等位基因是慢性心力衰竭患者的保护因子,可降低室性心律失常和心源性猝死的风险。

Objective To investigate the myocardial cells RyR2 and L-type calcium channel gene variants with ventricular arrhythmias and sudden cardiac death correlation. Methods Retrospective analysis of patients with chronic heart failure from January 2010 to December 2012 in our hospital including 622 cases of clinical data, and to select 516 cases of healthy people in medical examination center during the same period as a control group.Clinic or telephone follow-up recorded chronic patients with heart failure and sudden death acting as end. We analyzed possible candidate genes, according to four gene variants related functions, rs41315858 (G1885E), rs3766871 (G1886S), rs790896 (G> A) and rs723672 (T> C), by using Logestic, Cox regression analysis of four candidate gene variants for related research. Results 622 cases of chronic heart failure patients were enrolled and 516 patients in the control group. Genetic analysis showed that the gene variant alleles carried rs376687lA RyR2 may increase in patients with chronic heart failure ventricular arrhythmia risk; correction may be associated with the disease after risk factors, rs376687lA allele carries an increased risk of cardiogenic death and sudden cardiac death, and gene mutation alleles carried on rs790896A RyR2 can reduce the risk of sudden cardiac death. Conclusion Gene mutation rs376687lA RyR2 on genetics is predictor of ventricular arrhythmias and sudden cardiac death, and rs790896A allele is protective factor in patients with chronic heart failure which can be reduced ventricular arrhythmias and sudden cardiac death in risk.