Clinical study of percutaneous transluminal coronary intravascular lithotripsy angioplasty for severe left main coronary artery calcification guided by intravascular ultrasound percutaneous coronary
10.3969/j.issn.1004-8812.2024.07.003
- VernacularTitle:经皮冠状动脉腔内冲击波球囊导管成形术在血管内超声指导下对左主干重度钙化治疗的有效性和安全性分析
- Author:
Feng-Qi LIU
1
;
Jun BAO
;
Bai-Hong LI
;
Chong-Hao CHEN
;
Chang-Zheng GAO
;
Yun-Feng GUO
;
Xin GU
;
Jian-Bin GU
;
Xiao-Yan WANG
Author Information
1. 江南大学附属医院心内科,江苏无锡 214000
- Keywords:
Intravascular lithotripsy;
Left main artery;
Coronary artery calcification;
Intravascular ultrasound
- From:
Chinese Journal of Interventional Cardiology
2024;32(7):383-389
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effectiveness and safety of percutaneous coronary artery shock wave balloon angioplasty(IVL)under the guidance of intravascular ultrasound(IVUS)for the treatment of severe calcification lesions in the left main artery(LM).Methods A total of 26 patients with severe LM(mouth,body,bifurcation)calcification admitted to Jiangnan University Affiliated Hospital from October 2022 to April 2024 were included,with an average age of 72.0(61.8,75.4)years.Under the guidance of IVUS,IVL was used for pre-treatment of calcified lesions,followed by percutaneous coronary intervention(PCI)with stent/drug balloon implantation.All patients were evaluated using IVUS before and after the use of IVL and after PCI.And compare the IVUS intracavity related data before and after treatment[plaque burden(PB)、minimum lumen area(MLA)、minimum lumen diameter(MLD)]and calcification fracture number,minimum stent area(MSA),stent expansion coefficient(expansion,EXP),etc.Results There were 26 patients(2 with opening lesions,7 with body lesions,and 17 with bifurcation lesions at the end of the main trunk),including 7 with stable angina pectoris(SAP),10 with unstable angina(UA),4 with acute ST-segment elevation myocardial infarction(STEMI),and 5 with non ST-segment elevation myocardial infarction(NSTEMI).The PB at the most severe site of calcification decreased by 79.50(76.00,83.75)％compared to 80.00(76.00,83.75)％after IVL(P=0.001),MLA increased by 3.39(3.14,3.68)mm2 compared to 3.38(3.14,3.67)mm2 after IVL(P=0.039),MLD increased by 3.21(3.07,3.30)mm compared to 3.20(3.07,3.30)mm after IVL(P=0.024),and there was 100％calcification rupture(1/2 cases,2/9 cases,≥3/15 cases).The stent/drug ball was successfully implanted 100％,with EXP of(89.15±4.42)％and an MSA of 7.20(6.46,7.45)mm2.No adverse events such as death,angina or recurrent myocardial infarction occurred during the 3 months follow-up after surgery.Conclusions After evaluation by IVUS and pre-treatment with IVL,PCI was successfully completed for severe calcification lesions in LM,and IVL can be used as an option for the treatment of severe calcification in LM.
