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Evaluation of Sirolimus-eluting Stent in STEMI Patients by Optical Coherence Tomography

Evaluation of Neointimal Coverage and Vessel Wall Response After Implantation of Ultrathin Strut Biodegradable Polymer-coated Sirolimus-eluting Stent in STEMI Patients by Optical Coherence Tomography

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2019/05/019298
Enrollment
25
Registered
2019-05-23
Start date
Unknown
Completion date
Unknown
Last updated
2021-11-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: I213- ST elevation (STEMI) myocardial infarction of unspecified site

Interventions

Intervention1: Not applicable: Not applicable

Sponsors

Universal Cardiovascular Research Foundation
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1. Patient must be at least 18 years of age 2. Acute Myocardial Infarction (MI) with ST-segment elevation, within 12 hours from symptoms onset 3. Native coronary artery disease with >70% diameter stenosis (no prior stent implant, no prior brachytherapy) 4. Only Supralimus Grace stent(s) is/are to be implanted into the coronary vasculature during the index procedure 5. Able to understand and sign the written informed consent form 6. Able and willing to follow the protocol requirements

Exclusion criteria

Exclusion criteria: 1. Lesions in coronary artery bypass grafts 2. Significant left main disease 3. Killip class IV 4. Recent major bleeding (6 months) 5. Renal failure with creatinine value >2.5 mg/dl 6. Contraindication to antiplatelet therapy or a history of hypersensitivity to sirolimus or structurally related compounds 7. Patient in anticoagulant therapy 8. Internal mammary artery (IMA) due to a stent thrombosis 9. No suitable anatomy for OCT scan in the opinion of investigator

Design outcomes

Primary

MeasureTime frame
Strut-level analysis: 1. Proportion of covered struts 2. Thickness of neointimal hyperplasia (NIH) over covered struts 3. Proportion of malapposed struts 4. Mean malapposed strut-to-lumen distance 5. Ratio of uncovered struts to total struts (RUTTS) 6. Maximum length of consecutive segments of uncovered and malapposed struts Cross-section level analysis 1. NIH area, volume 2. Percent volumetric stent obstruction 3. Incomplete stent apposition (ISA) area and volumeTimepoint: 3 Months

Secondary

MeasureTime frame
Qualitative NIH assessment at follow-up: - Proportion of cross-sections with peri-strut low intensity areas (PLIA) and neoatherosclerosis - Quantification of NIH backscattering, attenuation, and optical intensityTimepoint: 3 Months;Serial changes in mean lumen area, minimum lumen area, and ISA area from post-procedure to the assigned follow-up periodTimepoint: 3 Months

Countries

India

Contacts

Public ContactDr Atul Abhyankar

Shree B. D. Mehta Mahavir Heart Institute

atulda.abhyankar@gmail.com9824145738

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026