Clinical effect of subintimal stent implantation in the patients with chronic total occlusion in coronary artery

doi:10.16138/j.1673-6087.2021.04.002

Abstract

Abstract:

Objective To evaluate clinical effect of subintimal stent implantation in the patients with chronic total occlusion(CTO) in coronary artery. Methods From January 2016 to January 2019, 73 patients with CTO in coronary artery who underwent coronary stent implantation successfully in our hospital were selected as the research objects. Intravascular ultrasound(IVUS) confirmed that a segment of the stent was in the false lumen (subintimal), but the proximal and distal parts of the stent were in the true lumen. The clinical and biochemical indexes of all patients were recorded in details. The clinical characteristics, major adverse cardiac events (MACE) (including death, angina recurrence, in-stent restenosis, and revascularization due to myocardial ischemia) during hospitalization and one-year follow-up were carefully noted. Results During one-year follow-up period, there were no death cases, 2 cases of myocardial infarction, 9 cases of angina recurrence, and the incidence of MACE was 15%. In addition, 13(18%) patients had in-stent restenosis, and 11 (15%) patients underwent revascularization due to myocardial ischemia again. Conclusions The subintimal stent implantation is feasible and effective approach for chronic coronary artery occlusion.

Key words: Chronic total occlusion, Subintimal, Stent, Major adverse cardiac events

CLC Number:

R541.4

HU Jian, YANG Zhenkun, YAN Xiaoxiang, NI Jun, DING Fenghua. Clinical effect of subintimal stent implantation in the patients with chronic total occlusion in coronary artery[J]. Journal of Internal Medicine Concepts & Practice, 2021, 16(04): 230-233.

Figures/Tables 1

References 16

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再狭窄病例特征	术后即刻例数	再狭窄例数
ADR	53(73)	10(19)
反向CART	20(27)	3(15)
支架在内膜下长度≥2 cm	6(8)	3(50)
支架远端血管直径≤2 mm	5(7)	3(60)
术后TIMI 2级血流	8(11)	5(63)
≥3个支架	11(15)	4(36)