Is a covered stent justifiable in the treatment of coronary artery perforation? An observational analysis of long-term results of two different covered stent types

Abstract

Objectives: In this retrospective observational study, we investigate outcome of patients treated with or without covered stent (CS) implantation in the management of coronary artery perforation (CAP) during coronary intervention.

Background: CSs have shown to be effective devices to achieve acute hemostasis in large CAP. However, doubts have been raised regarding their long-term outcome.

Methods: Data of 19 061 PCI procedures during a 10-year period were reviewed. Fifty-five cases of large CAP were withheld (Ellis type 2, 3 or cavity spilling). All medical and procedural records of these cases were retrospectively reviewed.

Results: Twenty-four (43.6%) patients were treated with CS implantation (15 polytetrafluoroethylene and 9 pericardium CSs). Twenty-six (47.3%) patients were managed without CS implantation, of whom five had unsuccessful delivery of a CS (stent delivery failure 17.2%). Although significantly more Ellis type-3 perforations were present in the CS group compared to the Non-CS group (75.0% vs 45.2%; P = 0.03), in-hospital mortality was not significantly different (8.3% vs 6.4%; [P = 0.79]). We observed a high rate of CS restenosis (29.2%) but a lower rate of CS thrombosis (4.2%). Despite these observations, 5-year MACE and all-cause mortality were not significantly different between CS and Non-CS group (respectively, 58.8% vs 50.0% (P = 0.26) and 26.7% vs 13.3% (P = 0.36)).

Conclusion: Although deliverability of CSs was not flawless and a high rate of CS restenosis appeared, short- and long-term outcome were comparable between patients treated with or without CS. Therefore, CSs are justifiable in the treatment of CAP.

Keywords: complication; coronary restenosis; coronary thrombosis.