Background
The evidence supporting the prolonged effectiveness of percutaneous coronaryintervention employing the "full metal jacket" (FMJ) technique, particularly inthe context of chronic total occlusions (CTOs), is notably scarce.
Objectives
The ...
Background
The evidence supporting the prolonged effectiveness of percutaneous coronaryintervention employing the "full metal jacket" (FMJ) technique, particularly inthe context of chronic total occlusions (CTOs), is notably scarce.
Objectives
The present study sought to delineate clinical outcomes over a decadefollowing FMJ stenting for CTOs and to assess factors correlated with targetlesion failure (TLF).
Methods
We conducted an analysis involving 406 patients with 409 CTOs whounderwent FMJ stenting from May 2003 to March 2015 at a single institution.
The primary endpoint was TLF, operationally defined as a composite outcomeincluding cardiac death, target vessel-related myocardial infarction, and eithertarget lesion revascularization or re-occlusion. The secondary endpointcomprised a composite of major clinical outcomes encompassing all-causemortality, myocardial infarction, and target vessel revascularization orre-occlusion. Throughout the 10-year follow-up period, the occurrencetime-to-event was scrutinized and multivariate Cox regression analysis wasemployed to ascertain independent risk factors for both primary and - v secondary outcome variables.
Results
The median follow-up period was 10.9 years (interquartile range 7.9 – 13.9;maximum 20.1). The 10-year cumulative Kaplan-Meier estimated incidencesfor the primary and secondary endpoints were 25.6% and 28.7%, respectively.
In the multivariable analysis, chronic kidney disease (adjusted hazard ratio7.99; 95% CI: 3.12 – 20.49; p < 0.001) and atrial fibrillation (adjusted hazardratio 5.50; 95% CI: 2.15 – 14.1; p < 0.001) emerged as independent clinicalrisk factors while distal residual stenosis (adjusted hazard ratio 2.45; 95% CI:1.60 – 3.73; p < 0.001) and number of stents used (adjusted hazard ratio 1.58;95% CI: 1.13 – 2.20; p = 0.007) were identified as independent procedural riskfactors linked to TLF.
Conclusions
In patients receiving FMJ stenting for CTOs, the long-term clinical outcomeswere deemed acceptable with a TLF rate of 25.6% at the 10-year mark.
Chronic kidney disease, atrial fibrillation, distal residual stenosis, and thenumber of stents utilized appeared to serve as clinical and procedural riskindicators for TLF.
KEY WORDS: occlusion, stenting, percutaneous coronary intervention