Impact of Single Long Stents Versus Overlapping Stents on Clinical Outcomes in Primary PCI.

Background: Patients with long coronary lesions undergoing primary percutaneous coronary intervention (pPCI) have higher rates of adverse clinical events. Both stent length and stent overlap are associated with worse outcomes; however, data comparing very long stent (VLS) to overlapping stents (OSs) are limited, particularly during pPCI. This study aimed to compare the impact of a single VLS versus ≥2 OSs on clinical outcomes in a multicenter registry of patients undergoing pPCI.

Methods: This study included patients with ST-segment elevation myocardial infarction (STEMI) who underwent pPCI using a single VLS (≥38 mm) or ≥2 OS (total stent length, ≥38 mm) in the culprit lesion. After propensity score matching based on tortuosity, calcification, Killip class, culprit lesion length ≥40 mm, and culprit vessel, the final cohort for analysis was selected. The primary endpoint was a combination of mortality and target lesion failure (reinfarction, stent thrombosis, or new revascularization) at 2 years.

Results: Among 647 consecutive STEMI patients who underwent pPCI between March 2016 and September 2022, 353 received VLS and 294 received OSs. After propensity score matching, 264 patients remained (132 in each group). The occurrence of the primary outcome (VLS: 12.9 vs. OS: 15.9%; P = 0.86), all-cause mortality (VLS: 7.6 vs. OS: 9.8%; P = 0.51), and target lesion failure (VLS: 8.3 vs. OS: 6.8, P = 0.64) were similar between the 2 groups.

Conclusions: In this cohort of real-world patients with STEMI undergoing pPCI, we found no significant difference in outcomes between VLS and OSs. Both strategies are reasonable treatment options for STEMI patients.