Mini-Crush Or Controlled Balloon-Crush For True Coronary Bifurcation Lesions
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Coronary Bifurcation Lesions, Death, Myocardial Infarction (MI), Stent Thrombosis. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
The mini-crush technique is one of the leading 2-stent techniques frequently applied by interventional cardiologists to treat complex bifurcation lesions. In the last 20 years, many technical innovations and iterations of mini-crush technique have been developed, and it maintains its popularity among invasive cardiologists. Moreover, mini-crush and double kissing-crush techniques have been compared in terms of clinical results in both left main and non-left main coronary bifurcation patient populations and no significant difference was found. However, the most important challenges of the mini-crush technique are the rewiring and advancement of a 1:1 non-compliant side-branch balloon after the main branch stent has been implanted. These challenges usually necessitate the use of a low profile balloon or additional support maneuvers (such as anchor balloon). Recently, a novel modified mini-crush-crush technique (controlled balloon-crush) has been introduced to the literature and is one of the most up-to-date crush techniques. The main advantage of this technique over the contemporary mini-crush technique is that the side branch can be easily rewired and the 1:1 size non-compliant balloon can easily pass through the crushed stent structure in the ostial part of the side branch. The basic rationale of this is that the crushing of the side branch stent is done in a more controlled manner (by slowly deflation of the side branch stent balloon) and this causes less disruption of the stent cells. This prospective observational study aims to assess the procedural and 1-year clinical outcomes of the contemporary mini-crush and controlled balloon-crush (modified mini-crush) double stenting techniques in patients with true coronary bifurcation lesions.
Primary outcome measures
- Major adverse cardiac events (MACE) [Time frame: 12-months]
Secondary outcome measures (1)
- Major adverse cardiovascular and cerebral events (MACCE) [Time frame: 12-months]
Eligibility criteria
Inclusion criteria
- Aged >18
- PCI with mini-crush or controlled balloon-crush
- Complex coronary bifurcation lesion (Medina 0.1.1 and Medina 1.1.1)
Exclusion criteria
- Non-complex bifurcation anatomy
- Bail-out 2-stent (reverse mini-crush or reverse controlled balloon-crush)
- ST-elevation myocardial infarction
- Cardiogenic shock status
- In-stent restenosis
- A history of coronary artery bypass grafting
- Implantation of bare-metal stent
- End-stage hepatic or renal disease
- <1-year life expectancy
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Turkey (Türkiye) · 1 center
- Istanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospi — Istanbul
Identifiers
NCT: NCT06880978 · 2025.02-25