» Articles » PMID: 35054523

Gradual Expansion of a Stent to Prevent Periprocedural Complications After Carotid Artery Stenting for Vulnerable Severe Stenotic Lesions with Intraplaque Hemorrhages: A Retrospective Observational Study

Overview
Journal Life (Basel)
Specialty Biology
Date 2022 Jan 21
PMID 35054523
Authors
Affiliations
Soon will be listed here.
Abstract

Vulnerable lesions with intraplaque hemorrhages are associated with a high incidence of complications following carotid artery stenting (CAS). CAS for vulnerable lesions has not been established; therefore, we gradually expand stents in such patients. This study aimed to compare the incidences of complications between gradual-expansion CAS for vulnerable lesions and standard CAS for non-vulnerable lesions. For gradual-expansion CAS, we used 3.0 or 4.0 mm balloons for minimal luminal diameters (MLDs) <2.0 or ≥2.0 mm, respectively, for pre-stenting angioplasty (SA) and did not overinflate them. By contrast, for standard CAS, we used a 4.0 mm balloon and overinflated it to 4.23 mm. A closed-cell stent was deployed, and post-SA was not performed in both groups. We evaluated the MLD before and minimal stent diameter (MSD) immediately after CAS, as well as periprocedural complications of combined stroke, death, and myocardial infarction within 30 days after CAS. In the vulnerable and non-vulnerable groups, 30 and 38 patients were analyzed, the MLDs were 0.76 and 0.96 mm before CAS, the MSDs were 2.97 mm and 3.58 mm after CAS, and the numbers of complications were 0 and 1, respectively. Gradual-expansion CAS for vulnerable lesions was as safe as standard CAS for non-vulnerable lesions.

References
1.
Mori T, Yoshioka K, Tanno Y, Kasakura S, Miyazaki Y . Reduced magnetic resonance angiography signal intensity in the middle cerebral artery ipsilateral to severe carotid stenosis may be a practical index of high oxygen extraction fraction. Eur Radiol. 2021; 32(3):2023-2029. PMC: 8831255. DOI: 10.1007/s00330-021-08272-3. View

2.
Takigawa T, Matsumaru Y, Hayakawa M, Nemoto S, Matsumura A . Cilostazol reduces restenosis after carotid artery stenting. J Vasc Surg. 2009; 51(1):51-6. DOI: 10.1016/j.jvs.2009.08.040. View

3.
Iwata T, Mori T, Miyazaki Y, Nakazaki M, Takahashi Y, Mizokami K . Initial experience of a novel sheath guide for transbrachial carotid artery stenting: technical note. J Neurointerv Surg. 2012; 5 Suppl 1:i77-80. DOI: 10.1136/neurintsurg-2012-010506. View

4.
Martin J, Pache J, Murphy K, Gailloud P, Puget E, Pizzolato G . Role of the distal balloon protection technique in the prevention of cerebral embolic events during carotid stent placement. Stroke. 2001; 32(2):479-84. DOI: 10.1161/01.str.32.2.479. View

5.
Bussiere M, Pelz D, Kalapos P, Lee D, Gulka I, Leung A . Results using a self-expanding stent alone in the treatment of severe symptomatic carotid bifurcation stenosis. J Neurosurg. 2008; 109(3):454-60. DOI: 10.3171/JNS/2008/109/9/0454. View