Clinical Efficacy of Ningxin Tongluo Decoction(宁心通络汤)Combined with Dapagliflozin on Patients of Type 2 Diabetes Mellitus Complicated with Ventricular Premature Beats

Objective:To explore the clinical efficacy of Ningxin Tongluo Decoction(宁心通络汤)combined with Dapagliflozin in the treatment of type 2 diabetes mellitus complicated with ventricular premature beats.Methods:Ninety-two patients with type 2 diabetes mellitus complicated with ventricular premature beats in our hospital were randomly divided into control group(n=46)and observation group(n=46).The control group was treated with routine Western medicine,and the observation group was treated with Ningxin Tongluo Decoction on the basis of the control group.The clinical efficacy of the two groups before and after treatment,TCM syndrome score,blood glucose levels[fasting blood glucose(GLU),glycosylated hemoglobin(Hb A1c)],glucose metabolism levels[fasting insulin(FINS),insulin resistance index(HOMA-IR)],the number of ventricular premature beats detected by 24-hour ambulatory electrocardiogram,heart rate turbulence(HRT)[initial oscillation(TO),oscillation slope(TS)],and heart rate variability(HRV)standard deviation of two normal R-R intervals(SDNN),standard deviation of average normal R-R intervals every 5 minutes(SDANN)and root mean square of adjacent normal R-R intervals(RMSSD)were observed.Results:After treatment,the total effective rate of the observation group was 89.13%,significantly higher than that of the control group(73.91%),and the difference was statistically significant(P<0.05).Both groups could reduce TCM syndrome score,blood glucose level,glucose metabolism level,reduce the number of ventricular premature beats,improve HRT and HRV levels,and the observation group was superior to the control group,and the difference was statistically significant(P<0.05).Conclusion:Ningxin Tongluo Decoction combined with Dapagliflozin is effective in treating type 2 diabetes mellitus patients with ventricular premature beats.It can reduce blood glucose level,improve HRV and HRT,improve autonomic nerve function and exert antiarrhythmic effect.

Efficacy of Danshen Injection Combined with Phosphocreatine Disodium in Treating Frequent Premature Contractions during Pregnancy and Its Effects on Maternal and Infant Outcomes

[Objectives]To explore the efficacy of Danshen Injection combined with phosphocreatine disodium in treating frequent premature contractions during pregnancy and its effect on maternal and infant outcomes.[Methods]A total of 200 pregnant women with normal pregnancy and frequent premature contractions who were treated in the outpatient department of internal medicine in Women and Children's Hospital of Hubei Province and Xinzhou District People's Hospital of Wuhan Central Hospital during September 2015 and October 2018 were selected and randomly divided into the control group and observation group,100 cases for each group.The observation group was treated with Danshen Injection combined with phosphocreatine disodium,and the control group was treated with phosphocreatine disodium alone.The course of treatment in both groups was one week.During the treatment,the changes of heart rate,heart rhythm,electrocardiogram and 24-h dynamic electrocardiogram(DCG)of both groups were observed.[Results]After treatment,the clinical efficacy of the observation group was better than that of the control group,and the difference was statistically significant(P<0.01).There were no adverse drug reactions in both groups.However,in the control group,non-sustained ventricular tachycardia(NSVT)was found in 24-h dynamic electrocardiogram(DCG)of 2 pregnant women with premature ventricular contraction.The pregnancy process was smooth,with full-term natural delivery and no fetal malformation.There was no significant difference in gestational age and neonatal weight between the two groups(P>0.05).However,there was a statistically significant difference in Apgar score between the two groups(P<0.05).During the 6-month postpartum follow-up,the mother and child were unharmed,and examination of repeated electrocardiograms showed that the conditions were normal.[Conclusions]Danshen Injection combined with phosphocreatine disodium has better efficacy in the treatment of frequent premature contractions during pregnancy and the maternal and infant outcomes than the treatment with phosphocreatine disodium alone,and it has good safety and can prevent premature contractions from progressing to tachyarrhythmias.

Using Three-Dimensional Lorenz Scatter Plots to Detect Patients with Atrioventricular Node Double Path Caused by Interpolated Ventricular Premature Systoles: A Case Study

A series of related electrophysiology phenomena can be caused by the occurrence of interpolated ventricular premature contraction.In our recent three-dimensional Lorenz R-R scatter plot research,we found that atrioventricular node double path caused by interpolated ventricular premature contraction imprints a specifi c pattern on three-dimensional Lorenz plots generated from 24-hour Holter recordings.We found two independent subclusters separated from the interpolated premature beat precluster,the interpolated premature beat cluster,and the interpolated premature beat postcluster,respectively.Combined with use of the trajectory tracking function and the leap phenomenon,our results reveal the presence of the atrioventricular node double conduction path.

Clinical Study on Huangku Qingxin Mixture Combined with Metoprolol Tartrate Tablets for Treatment of Ventricular Premature Beat

[Objectives] To observe the clinical effect and safety of Huangku Qingxin Mixture combined with Metoprolol Tartrate Tablets for patients with ventricular premature beat.[Methods] 126 patients were divided randomly into the control group (62 cases) and the treatment group (64 cases). The control group was treated with routine western medicine, and the treatment group was treated with routine western medicine combined with Huangku Qingxin Mixture, both for one month. Then, observed the changes of Myerburg score, SAS score, symptom score and dynamic electrocardiogram in the two groups before and after treatment.[Results] The total effective rate of clinical symptoms was 82.81% in the treatment group and 64.52% in the control group. Through comparison of two groups, the difference was statistically significant ( P <0.05). The total effective rate of dynamic electrocardiogram was 84.38% in the treatment group and 58.06% in the control group. Through comparison of two groups, the difference was statistically significant ( P <0.05). Before treatment, there was no significant difference being found in the comparison of the scores of Myerburg and SAS in the two groups ( P >0.05). After treatment, Myerburg score and SAS score in the two groups were lower than those before treatment ( P <0.05);Myerburg score and SAS score in the treatment group were both better than those in the control group ( P <0.05). Before treatment, there was no significant difference in the comparison of the QT interval dispersion (QTd) and the corrected QT interval dispersion (QTcd) by Bazette formula ( P >0.05). After treatment, the results of QTd and QTcd in the two groups were lower than those before treatment ( P <0.05);the results of QTd and QTcd in the treatment group were better than those in the control group ( P <0.05).[Conclusions] The application of Huangku Qingxin Mixture combined with Metoprolol Tartrate Tablets can effectively reduce Myerburg scores and SAS scores in patients with ventricular premature beat, shorten QTd and QTcd, and improve the life quality of patients. It has no adverse clinical reaction.

One Hundred and Seven Middle-Aged and Senile Cases of Coronary Heart Disease with Ventricular Premature Beat Treated by Qing Xin An Shen Fang

The therapeutic principle of clearing away the heart-heat to induce tranquilization was adopted in 107 middle-aged and senile patients with ventricular premature beat of coronary heart disease on the basis of pathogenic features of phlegm, heat, blood stasis and deficiency in this condition. Qing Xin An Shen Fang (清心安神方a formula for clearing away the heart-heat to induce tranquilization) was used in the treatment group and compared with mexiletine and Fu Fang Dan Shen Tablets (复方丹参片Compound Salvia Tablets) used in the control group. The results turned to be that the markedly effective rate was 85.1% and the total effective rate 96.3% in the treated group, better than that in the control group, with the former having a good antihypertensive and antihyperlipemic effect and an effect of improving microcirculation and clinical symptoms.

HRV changes before and after radiofrequency ablation in patients with different origin of right ventricular outflow tract ventricular premature contraction

Objective:To observe the HRV changes before and after the radiofrequency current catheter ablationventricular premature beats originated from different site of right ventricular outflow tract.Methods:A total of 102 patients with frequent RVOT-VPC admitted to our hospital were accepted radiofrequency current catheter ablation (RF). According to the origin of RVOT-VPC, it was divided into 2 groups, one is from ventricular septum, and the other one is from free wall, and in each group, male and female are observed separately.Results:(1) HRV before RF ablation: 1) rMSSD in the female patients with RVOT-VPC from free wall was significantly lower than those from septum;2) frequency domain index (W, LF) were higher than normal range, and in male patients, LF/HF<1 were found, but in female patients, LF/HF>1. (2) HRV after RF ablation: 1) Significant changes were found in female patients with RVOT-VPC from septum, rMSSD, PNN50, HF and LF decreased;2) In female patients with RVOT-VPC from free wall, rMSSD decreased;3) In male patients, there were no significant HRV changes found before and after RF ablation. (3) Heart rate changes: 1) In female patients with RVOT-VPC from septum, heart rate decreased significantly ((76.47±9.47) bpm vs (69.29±14.59) bpm)2) No significant changes were found in male patients.Conclusion:In patients with RVOT-PVC sympathetic and vagus excitability increased, and after catheter ablation, in female patients with RVOT-PVC originated from septum, the HRV index relating to sympathetic and vagus excitability significantly decreased.

An introduction of the experience in treating Ventricular premature beat with stasis heat

室性早搏是临床常见的心律失常,不仅大大降低着患者的生活治疗,甚至存在着致死的危险。中医学认为其病机以心肾虚损为本,以痰饮、瘀血等有形实邪的阻滞为标。李远老师在数十年的临床工作中认识瘀血在多种因素影响下从阳化热是室性早搏的重要病机,较为广泛的出现在本病的不同证候、不同治疗阶段中,不应予以忽略。

CLINICAL OBSERVATION ON 84 CASES OF VENTRICULAR PREMATURE BEAT WITH DEFICIENCY SYNDROME TREATED BY QI LU TANG

From August 1989 to May 1994, 84 cases of ventricular premature beat (VPB) with deficiency syndrome were treated with our empirical prescription called Qi LU Tang (齐律汤 Decoction for Improving Abnormal Heart Beat). The total effective rate was 88.10%, being significantly different from that of the control group treated with the Western drug propafenone (P【 0.01). Qi Lu Tang exhibited a better therapeutic effect in cases of VPB with deficiency of qi. deficiency of both qi and blood, and deficiency of both qi and yin.

The Efficacy and Safety of Wenxin Keli in Patients with Frequent Premature Ventricular Contractions： A Randomized, Double-blind, Placebo-controlled, Parallel-group, Multicenter Trial

Background：Premature ventricular contractions （PVCs） are common in the general population,and frequent PVCs may result in the poor quality of life or even the damage of cardiac function.We examined the efficacy and safety of a traditional Chinese medicine Wenxin Keli for the treatment of frequent PVCs among a relatively large Chinese cohort.Methods：We performed a randomized,double-blind,placebo-controlled,parallel-group,multicenter trial.A total of 1200 eligible participants were randomly assigned in a ratio of 1：1 to receive Wenxin Keli or the placebo for 4 weeks.The primary and secondary endpoint was the change of PVC numbers and PVC-related symptoms after a 4-week treatment compared with baseline,respectively.In addition,vital signs,laboratory values,and electrocardiographic parameters were assessed in a safety analysis.Results：At the initial evaluation,no significant differences in the baseline characteristics were observed between the Wenxin Keli group and the placebo group.A smaller number of PVCs was observed after the 4-week treatment than at baseline,in both the Wenxin Keli group （5686 ± 5940 vs.15,138 ± 7597 beats/d,P ＜ 0.001） and the placebo group （10,592 ± 8009 vs.14,529 ± 5929 beats/d,P ＜ 0.001）;moreover,the Wenxin Keli group demonstrated a significantly greater reduction in the frequency of PVCs than the placebo group （P ＜ 0.001）.In a full analysis set,patients in the Wenxin Keli group exhibited significantly higher total effective responses in the reduction of PVCs compared to those in the placebo group （83.8％ vs.43.5％,P ＜ 0.001）.The per-protocol analysis yielded similar results （83.0％ vs.39.3％,P ＜ 0.001）.Treatment with Wenxin Keli also demonstrated superior performance compared to the placebo with respect to PVC-related symptoms.No severe adverse effects attributable to Wenxin Keli were reported.Conclusions：Wenxin Keli treatment effectively reduced the overall number of PVCs and alleviated PVC-related symptoms in patients without structural heart diseases and had no severe side effects.

Evaluation of global and regional left ventricular systolic function in patients with frequent isolated premature ventricular complexes from the right ventricular outflow tract

Background Frequent premature ventricular complexes from the right ventricular outflow tract （RVOT-PVCs） are associated with left ventricular dysfunction.This study adopted two-dimensional speckle tracking imaging to evaluate global and regional left ventricular myocardial function in patients with frequent RVOT-PVCs.Methods This study included 30 patients with frequent RVOT-PVCs and 30 healthy subjects.Aortic systolic velocity-time integral （AoVTI） and myocardium strain in circumferential （CS）,radial （RS） and longitudinal （LS） directions were evaluated by conventional echocardiography and speckle tracking imaging.All values of patients with RVOT-PVCs were recorded during sinus （PVC-S） and PVC beats （PVC-V）.Results Significant differences were demonstrated in global CS,RS and LS between the control subjects and the PVC-V （CS：（17.46±2.48）% vs.（11.52±3.28）%,RS：（48.26±10.20）% vs.（20.92±9.78）%,LS：（19.89±2.62）% vs.（11.79±3.66）%,P 〈0.01）,and in segmental RS and LS of nearly all the left ventricular segments.Statistical differences in segmental CS between the PVC-V and the control subjects were only observed in anterior,anteroseptal and septal segments （only seen in anteroseptal and septal segments at apex）.Furthermore,V/S AoVTI （AoVTI during the PVC beat divided by AoVTI during the sinus beat,then multiplied by 100%） correlated with coupling interval （r=0.67,P 〈0.001） and global strain （CS：r=0.48,P=0.007; RS：r=0.65,P 〈0.001; LS：r=0.65,P 〈0.001）.Conclusions Frequent RVOT-PVCs can induce global and regional left ventricular systolic dysfunction.The reduction of hemodynamic parameters relates to the coupling interval and the global systolic function.

Effect of burden and origin sites of premature ventricular contractions on left ventricular function by 7-day Holter monitor

Recent studies have shown that premature ventricular contractions （PVCs） could enlarge the heart, but its risk factors are incompletely understood as a single 24-hour recording cannot reflect the true PVC burden due to day-to-day variability. Our purpose was to investigate the effect of burden and origin sites on left ventricular （LV） function in patients with PVCs by 7-day Holter electrocardiography （ECG）. From May 2012 to August 2013, 112 consecutive patients with PVCs were recruited from the authors＇ affiliated hospital. All patients received 2-dimensional transthoracic echocardiography, 12-lead routing ECG and 7-days Holter ECG. Serum N-terminal pro- brain natriuretic peptide （NT-proBNP） levels were measured. A total of 102 participants with PVCs were included in the final analysis. Origin of PVCs from the tricuspid annulus had the highest burden and NT-proBNP level. LV papillary muscle had a higher LV ejection fraction （EF） level and a lower LV end-systolic dimension （ESD） than other PVC foci （P〈0.05）. The high burden group had a higher LV end-diastolic dimension （EDD） and LVESD but lower LVEF than the other two groups （P〈0.05）. Female, older age, physical work, and history of PVCs had a significantly positive correlation with symptoms. Male, older age, physical work, and high burden were positive predictors of enlarged LVEDD, LVESD and higher serum NT-proBNP level, but lower LVEF. Seven-day dynamic ECG Holter monitor showed the true PVC burden on patients with PVCs. PVCs with a lower burden or origin from the LV papillary muscle and the fascicle were relatively benign, while PVCs with a higher burden or origin from the tricuspid annulus may lead to cardiac dysfunction.

Adenosine Sensitivity is Associated with Ablation Success Rate and Recurrence Rate with Nonirrigated Catheters in Patients with Ventricular Premature Contractions/Tachycardia from the Ventricular Outflow Tract

Background：A high ablation success rate for ventricular arrhythmia （VA） from outflow tract has been achieved,but some of them cannot be eliminated from endocardium.We investigated the association between adenosine sensitivity and ablation success/recurrence rates with a nonirrigated or an irrigated catheter.Methods：According to adenosine test,all patients were divided into a sensitive group （S group） or an insensitive group （Ⅰ group）.The patients of each group were randomized into a nonirrigated catheter （NA） subgroup or an irrigated catheter （IA） subgroup with a 2∶1 ratio.Results：In S group of 122 patients （84 in NA subgroup）,the ablation success rate was similar between two subgroups （94.7% vs.90.5%,P 〉 0.05）,but in Ⅰ group of 94 patients （60 in NA subgroup）,it was higher in IA subgroup （94.1%） than that in NA subgroup （73.3%,P 〈 0.05）.The success rate using nonirrigated catheter was significantly higher in S group （90.5%） than that in Ⅰ group （73.3%,P 〈 0.01）,and the recurrence rate was lower in S group than that in Ⅰ group （1.3%,vs.13.6%,P 〈 0.05）.On the contrary,the success rate and the recurrence rate using irrigated catheter were similar between S group and 1 group （94.7%,94.1%,P 〉 0.05,vs.2.8%,6.3%,P 〉 0.05）.Conclusions：Adenosine insensitivity is associated with a lower success rate and a higher recurrence rate for VA patients undergoing nonirrigated catheter ablation.Thus,irrigated catheters should be the first choice for VA ablation in adenosine insensitive patients.

Catheter ablation of premature ventricular complexes associated with false tendons: A case report

BACKGROUND False tendon is a common intraventricular anatomical variation. It refers to a fibroid or fibromuscular structure that exists in the ventricle besides the normal connection of papillary muscle and mitral or tricuspid valve. A large number of clinical studies have suggested that there is a significant correlation between false tendons and premature ventricular complexes. However, few studies have verified this correlation during radiofrequency catheter ablation of premature ventricular complexes.CASE SUMMARY A 45-year-old male was admitted to receive radiofrequency ablation for symptomatic premature ventricular complexes. A three-dimensional model of the left ventricle was established by intracardiac echocardiography using the CartoSound^TM mapping system. In addition to the left anterior papillary muscle,the posterior papillary muscle was mapped. False tendons were found at the base of the interventricular septum, and the other end was connected to the left ventricular free wall near the apex. An irrigated touch force catheter was advanced into the left ventricle via the retrograde approach. The earliest activation site was marked at the interventricular septum attachment of the false tendons and was successfully ablated.CONCLUSION This case verified that false tendons can cause premature ventricular complexes and may be cured by radiofrequency ablation guided by intracardiac echocardiography with the Carto Sound TM system.

A Case of Premature Ventricular Complexes from the Proximal Left Bundle Branch Successfully Ablated from the Right Coronary Cusp

Background:Premature ventricular complexes(PVCs)from the proximal left bundle branch(LBB)can be ablated in the left ventricular outflow tract but can easily damage normal conduction bundles.Here,we report a case of successful ablation of PVCs from the proximal LBB within the right coronary cusp(RCC).Case presentation:Our patient was a 70-year-old woman with PVCs from the proximal LBB that were successfully ablated via the RCC through radiofrequency catheter ablation with a 3D mapping system;she had a complication of incomplete right bundle branch block(RBBB)and remained asymptomatic during follow-up.Conclusion:The RCC provides an alternative approach for ablating PVCs originating from the proximal LBB,ow-ing to the close relationship between the RCC and proximal LBB.

特发性室性早搏经射频消融后自主神经系统活性的变化

目的射频导管消融术(RFCA)是特发性室性早搏(IPVC)的标准治疗方法。本研究旨在确定低、中、高负荷量的患者在RFCA术前术后的自主神经系统(ANS)活动。方法回顾性分析2017年6月至2021年3月共200例特发性室性早搏行射频消融手术的患者。在200例患者中,179例(89.5%)手术消融成功。将消融成功的患者分为低负荷组(负荷量≤15%)、中负荷组(负荷量15%~25%)和高负荷组(负荷量≥25%)。评估不同负荷和不同消融部位患者的临床数据、心率变异性(HRV)各参数、窦性心率震荡(HRT)及心率减速力(DC)。结果高负荷组的平均心率、5 min均值标准差(SDANN)、正常RR间期标准差(SDNN)、正常RR间期标准差(SDNN)指数、逐次R-R区间差异均方根(rMSSD)、相邻RR间期差值超过50 ms的RR间期所占百分数(pNN50)高于低负荷组,而低频功率(LF)/高频功率(HF)之比低于低负荷组。消融后,SDNN、SDNN指数、SDANN、rMSSD、pNN50、震荡斜率(TS)和DC显著降低(P<0.01),LF/HF和震荡初始(TO)显著升高(P<0.01)。术前早搏负荷与左心室舒张末期内径(LVEDd)、平均心率、SDNN指数、SDANN、rMSSD、pNN50呈正相关,与总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、左心室射血分数(LVEF)、LF/HF呈负相关。回归分析显示,特发性室性早搏负荷与平均心率(P<0.01)、SDANN(P<0.01)和rMSSD(P<0.01)呈正相关。结论随特发性室性早搏负荷增加,交感神经和迷走神经活动增强,并以交感神经活性增强为主。特发性室性早搏的发生可能与自主神经平衡调节受损有关。射频消融术可降低交感神经和迷走神经活性。

参松养心胶囊治疗老年冠心病室性早搏气阴两虚、心络瘀阻型患者临床观察

目的:观察参松养心胶囊对老年冠心病室性早搏气阴两虚、心络瘀阻型患者临床疗效、动态心电图室性早搏次数及中医证候积分的影响。方法:选择老年冠心病室性早搏气阴两虚、心络瘀阻型患者60例,按照随机数字表法分为对照组和观察组,每组30例。对照组给予口服酒石酸美托洛尔,观察组在对照组基础上口服参松养心胶囊。两组均连续治疗4周。观察两组治疗前后临床疗效,24 h动态心电图室性早搏次数及中医证候积分。结果:对照组有效率[73.33%(22/30)]高于观察组[96.67%(29/30)](P<0.05)。两组治疗后室性早搏次数均减少,观察组减少较对照组更明显(P<0.05)。与治疗前比较,两组心悸、悸动不安、神疲乏力、气短、五心烦热等中医证候积分均下降(P<0.05),且治疗后观察组上述指标改善优于对照组(P<0.05)。结论:参松养心胶囊能有效减少老年冠心病室性早搏患者的室性早搏次数,改善患者临床症状。

STEMI患者急诊PCI术后出现频发室性早搏的危险因素研究

目的探讨急性ST段抬高型心肌梗死(STEMI)患者急诊经皮冠脉介入术(PCI)后出现频发室性早搏(简称“室早”)的危险因素。方法选择2021年7月至2023年7月在海南省中医院胸痛中心就诊的108例STEMI患者纳入本研究,所有患者按急诊PCI术后1周内是否出现频发室早进行分组,分为频发室早组(n=25)和非频发室早组(n=83)。然后记录所有患者入院时的基线数据、急诊PCI资料以及PCI术后血清8-羟基脱氧鸟苷(8-OHDG)水平,对其进行统计学分析。结果基线数据方面,两组患者年龄、性别、烟酒嗜好史、生命体征、Killip分级、电解质水平和左心室射血分数方面比较,差异无统计学意义(P>0.05)。频发室早组患者合并糖尿病的患者数量显著高于非频发室早组,差异有统计学意义(P<0.05);两组患者STEMI发病至到达医院大门时间、医院大门至导丝通过时间、肌钙蛋白I、脑钠肽、肌红蛋白、肌酸激酶同工酶、是否为三只血管病变和是否为左主干或前降支近端病变方面比较,差异无统计学意义(P>0.05)。此外,频发室早组PCI术后血清8-OHDG水平也显著高于非频发室早组,差异有统计学意义(P<0.05)。二元logistic回归分析显示,糖尿病病史和PCI术后高水平的8-OHDG是STEMI患者急诊PCI术后出现频发室早的危险因素(P<0.05)。结论糖尿病病史和PCI术后高水平的8-OHDG是STEMI患者急诊PCI术后出现频发室早的危险因素。

清热化痰类中药治疗痰火扰心型室性期前收缩疗效及安全性的Meta分析

目的:系统评价清热化痰类中药治疗痰火扰心型室性期前收缩的疗效及安全性。方法:检索中国知网(CNKI)、维普数据库(VIP)、万方数据库、中国生物医学文献数据库(CBM)、PubMed、Web of Science及the Cochrane Library。检索时间限定为自建库至2022年5月1日。纳入运用清热化痰类中药治疗痰火扰心型室性期前收缩的随机对照试验(RCT),2名研究者通过阅读文献题目和摘要,并结合全文,对文献进行资料提取,应用RevMan 5.4软件进行Meta分析。结果:最终纳入符合标准的RCT 12项,涉及1 608例病人,Meta分析结果显示:试验组临床疗效优于对照组[RR=1.23,95%CI(1.15,1.32),P<0.000 01],不良反应发生率低于对照组[RR=0.50,95%CI(0.27,0.92),P=0.03],中医证候疗效优于对照组[RR=1.22,95%CI(1.07,1.39),P=0.002],室性期前收缩次数较对照组明显降低[MD=-706.53,95%CI(-951.62,-461.44),P<0.000 01],中医证候积分较对照组明显降低[MD=-16.30,95%CI(-21.53,-11.08),P<0.000 01]。结论:现有证据表明,清热化痰类中药联合西药治疗痰火扰心型室性期前收缩的疗效优于单纯西药治疗,且具有较高的安全性。

特发性室性期前收缩评估和管理的研究进展

特发性室性期前收缩是临床常见的心律失常类型,既往观点认为此类疾病多数预后良好。但近年来人们发现这一过去被普遍认为是良性、无需过多干预的心脏节律异常,与部分患者左心室功能可逆性减退,甚至发生心力衰竭相关,并由此引出室性期前收缩诱发性心肌病这一概念。并非所有室性期前收缩最终都会进展为心肌病,这一过程受室性期前收缩负荷、起源部位、QRS波群时程、伴随症状等多因素的共同影响。成功的导管消融术和抗心律失常药物治疗能够有效减少患者室性期前收缩负荷,改善甚至逆转已经受损的心功能。

CARTO三维标测零射线下射频导管消融术治疗主动脉窦起源室性早搏的临床研究

目的:CARTO三维标测下精确定位冠状动脉(冠脉)开口位置,零射线下射频导管消融术治疗主动脉窦起源室性早搏(ASC-PVC)的效果分析,并将主动脉窦进行分区后评估相应区域的消融风险。方法:纳入2020年1月至2023年1月因ASC-PVC行射频导管消融术治疗的66例患者,常规组(n=32)按照常规方法应用CARTO 3系统构建主动脉窦模型,经消融导管中空管道行冠脉造影明确靶点与冠脉开口距离后进行消融治疗。治疗组(n=34)应用CARTO 3系统构建主动脉窦与冠脉开口模型并对主动脉窦进行精细分区,通过消融导管阻抗变化规律再次快速定位确认冠脉开口后,在零射线下行室性早搏电激动标测及消融治疗。收集消融导管主动脉窦内的阻抗数据,同时比较两组患者总手术时间及主动脉窦内操作时间、术中对比剂用量、X线曝光时间、手术即刻与近期(6个月)成功率以及并发症发生率,分析两组患者消融成功靶点的分布位置。结果:治疗组与常规组的手术即刻成功率(93.8%vs.94.1%)与近期成功率(90.6%vs.88.2%)差异均无统计学意义(P均>0.05)。治疗组的总手术时间[(58.76±4.94)min vs.(66.91±5.94)min]、主动脉窦内操作时间[(43.12±4.49)min vs.(50.31±5.18)min]均明显短于常规组(P均<0.001)。治疗组患者的主动脉窦4个分区的阻抗分析显示,消融导管从主动脉窦内移动到冠脉开口并进入冠脉内的过程中,阻抗陡然进行性升高,与主动脉窦内其他部位的阻抗相比差异均有统计学意义(P均<0.001)。结论:在零射线下标测并进行射频导管消融术治疗ASC-PVC可以简化手术流程、缩短手术时间。消融导管头端阻抗变化可作为定位冠脉开口的依据。将主动脉窦精细分区后可详细评估在相应靶点进行消融治疗的风险大小。