The HEART study: a real-world experience using the CID Chrono Carbostent in primary and rescue PCI

Antonio Maria Leone, Gregory Angelo Sgueglia, Italo Porto, Giampaolo Niccoli, Francesco Burzotta, Carlo Trani, Alberto Ranieri De Caterina, Antonino Buffon, Mario Attilio Mazzari, Rocco Mongiardo, Antonio Giuseppe Rebuzzi, Filippo Crea
Journal of Cardiovascular Medicine 2012, 13 (12): 775-82

BACKGROUND: Chrono Carbostent (CID, Saluggia, Italy) is characterized by a peculiar coating with Carbofilm which could reduce the risk of thrombosis as compared to other bare metal stents (BMS). This feature should be particularly useful in the setting of primary or rescue percutaneous coronary intervention (PCI) in patients with ST-segment elevation myocardial infarction (STEMI).

METHODS: We tested the efficacy and safety of this stent in patients with STEMI undergoing primary or rescue PCI. Inclusion criteria included the diagnosis of STEMI, a coronary anatomy suitable for stenting and no contraindications to dual antiplatelet therapy for at least 1 month. The primary endpoint was the composite of the following major adverse cardiac events (MACEs) at 12 months: death, recurrence of myocardial infarction and target vessel revascularization.

RESULTS: One hundred and seven STEMI patients treated with Chrono Carbostent implantation were enrolled. Eighty-three (77%) patients underwent primary and 24 (23%) rescue PCI. A total of 148 stents were successfully implanted. Cardiogenic shock was present in 12 (11%) patients and in-hospital mortality was 6.5%. Cumulatively, the rate of MACEs at 12 months was 17.7% (deaths 7.4%, target lesion revascularization 9.3%).

CONCLUSIONS: In unselected patients with STEMI treated by urgent PCI, the Chrono Carbostent showed a low rate of events in those patients surviving the acute phase of myocardial infarction. Unfortunately, and especially for patients in cardiogenic shock, survival continued to be relatively independent of interventional treatment, even when successfully completed, thus strictly linking prognosis of STEMI to severity of clinical presentation.

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