Intravascular Ultrasound Analysis of Factors Associated with Suboptimal Stent Expansion after High Pressure Balloon Inflation

Hong, Myeong Ki; Park, Seong-Wook; Lee, Cheol Whan; Lee, Sang-Gon; Lee, Il-Soo; Park, Hoon Ki; Kim, Jin-Woo; Choi, Kee‐Joon; Kang, Duk–Hyun; Song, Jae‐Kwan; Kim, Jae‐Joong; Kim, You‐Ho; Park, Jonghoon; Park, Seung‐Jung

doi:10.4070/kcj.1997.27.12.1272

Cited by 4 publications

(3 citation statements)

References 15 publications

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“…Stent expansion is affected by plaque burden and characteristics, 17,18 and the mechanism of stent expansion is a combination of vessel stretch and plaque redistribution 19,20 . In our series, layered plaque had significantly lower stent expansion than those without a layered phenotype.…”

Section: Discussionmentioning

confidence: 48%

Comparison of post‐stent optical coherence tomography findings: Layered versus non‐layered culprit lesions

Kurihara

Shinohara

Kim

et al. 2020

Cathet Cardio Intervent

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Objectives This study aimed to investigate the vascular response of lesions with a layered phenotype. Background Recent studies have shown that layered plaques at culprit lesions detected by optical coherence tomography (OCT) have greater plaque burden and more inflammatory features than non‐layered plaques. Methods This is a retrospective observational study. A total of 193 target lesions from 193 patients [100 patients with acute coronary syndromes (ACS) and 93 with stable angina pectoris (SAP)] who had undergone OCT imaging of the culprit lesion both before and after stenting were included. Layered plaques were identified by OCT as plaques with layers of different optical density. Patients were divided into two groups based on the presence or absence of a layered phenotype at the culprit lesion, and pre‐ and post‐procedure OCT findings were compared. Results Among 193 patients, 36 (36.0%) lesions in ACS patients and 56 (60.2%) lesions in SAP patients were found to have a layered phenotype at the culprit lesion. At baseline, percent area stenosis was greater in layered plaque than in non‐layered plaque (p = .019). Following stent implantation, the stent expansion ratio and mean stent eccentricity index were significantly lower in layered plaques than in non‐layered plaques (p = .041, p = .017, respectively), mainly derived from ACS patients. Conclusion Following stent implantation, plaques with a layered phenotype had less stent expansion and more eccentric lumens. Aggressive balloon dilation may be required to obtain optimal stent outcomes in patients with a layered plaque phenotype at the culprit lesion.

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Section: Discussionmentioning

confidence: 48%

Comparison of post‐stent optical coherence tomography findings: Layered versus non‐layered culprit lesions

Kurihara

Shinohara

Kim

et al. 2020

Cathet Cardio Intervent

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“…Failure to achieve optimal stent expansion poses a risk of treatment failure such as in-stent restenosis and stent thrombosis after PCI [15,16]. Several factors, including diameters, characteristics of the lesions, calcification of the lesion at pre-intervention, residual plaque burden, and symmetrical index of stent expansion (the minor diameter divided by the major diameter) at post-intervention, may determine the adequacy of stent expansion [5]. In the present study, we found that stent length has an effect on optimal stent expansion in angiography-guided PCI.…”

Section: Discussionmentioning

confidence: 99%

“…It is well known that larger final dimensions of target vessel lumen represent a crucial factor for lower risk of recurrence and improvement of long-term patency after percutaneous coronary intervention (PCI) [1][2][3]. Failure of the delivery balloon to reach its target size during stent deployment and subsequent stent elastic recoil are representative mechanisms that contribute to suboptimal stent expansion and the severity of residual lesion after PCI [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Stent length is a contributing factor of suboptimal stent expansion in drug-eluting stents

et al. 2015

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Clinical Experiences of Coronary MAC (Maximum Arterial Re-Creation) Stent

Kim¹,

Jeong²,

Jang³

et al. 1998

Korean Circ J

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Background and ObjectivesWe previously reported the effects of MAC Maximum Arterial Re-Creation stent on stent restenosis in a porcine model. The clinical trial was performed in patients with ischemic heart disease after MAC stent implantation. Materials and Method We analyzed the clinical and angiographic re-sults in 20 patients in 22 lesions 15 M, 5 F, 59 11 year , who underwent MAC stent at Chonnam University Hospital between Nov 97 and Aug 98. Clinical diagnosis was 13 unstable angina 65 , 6 acute myocardial infarction 30 and 1 old myocardial infarction 5 . Results Indications for stent were 3 de novo lesion 13.6 , 7 restenosis 31.8 , 8 suboptimal angioplasty result 36.4and 4 bail-out procedure 18.2 . Target stented coronary arteries were 15 left anterior descending coronary arteries 67.3 , 2 left circumflex coronary arteries 9.1 and 5 right coronary arteries 22.7 . Morphologic types were 13 type B1 59.1 , 5 B2 22.7 and 4 C 18.2 . Minimal luminal diameter MLD before stent was 0.75 0.35 mm and percent diameter stenosis DS was 75 11.5 , which were improved 2.97 0.28 mm in MLD and 2.79 5.4 in DS after stent. MAC stent was placed successfully in all patients and one case of acute stent thrombosis was improved after ReoPro infusion. Mean follow-up period was 5.2 3.2 months and 100 event-free survival was observed in all patients. Follow-up coronary angiography was performed in 5 patients and showed no stent restenosis. Conclusion The MAC stent is one of effective and safe devices in the treatment of coronary artery diseases without significant complications and target vessel revascularization. Korean Circulation J 1998 ; 28 10 : 1700-1706 KEY WORD MAC Maximum Arterial Re-Creation stent. 서 론

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Intravascular Ultrasound Analysis of Factors Associated with Suboptimal Stent Expansion after High Pressure Balloon Inflation

Cited by 4 publications

References 15 publications

Comparison of post‐stent optical coherence tomography findings: Layered versus non‐layered culprit lesions

Comparison of post‐stent optical coherence tomography findings: Layered versus non‐layered culprit lesions

Stent length is a contributing factor of suboptimal stent expansion in drug-eluting stents

Clinical Experiences of Coronary MAC (Maximum Arterial Re-Creation) Stent

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