Performance of the Titanium-Nitride-Oxide Coated Stent in Patients with Multivessel Coronary Artery Disease

ABSTRACT Background To date, there are no studies evaluating the use of the titanium-nitride-oxide coated stent in patients with multivessel coronary artery disease. We have compared the performance of the Titan-2® stent to that of the second generation drug-eluting stents in this scenario. Methods From 2011 to 2012, 284 patients were treated with the Titan-2® stent, of which 100 (35.2%) had multivessel coronary artery disease. This group was compared to 100 patients, of a group of 304 (38.9%) patients with multivessel coronary artery disease treated with second generation drug-eluting stents with durable or biodegradable polymers. The primary endpoint was the occurrence of major adverse cardiovascular events at 1 year. Results Clinical, angiographic and procedure-related characteristics of the patients did not show differences between groups. Most patients in the Titan-2® group were male (70%), mean age was 68.4 ± 12.9 years and 25% were diabetic. Stable symptomatic patients were prevalent (68%), 51% had three-vessel disease and ventricular function was preserved (55.6 ± 12.7%). The incidence of major adverse cardiovascular events at 1 year in the Titan-2® group was 21% (vs. 17%; p = 0.59), death was observed in 3% (vs. 2%; p > 0.99) of the patients, acute myocardial infarction in 5% (vs. 4%; p > 0.99) and a new revascularization procedure in 13% (vs. 11%; p = 0.83). Definitive stent thrombosis was not observed in either group. Conclusions The Titan-2® stent showed similar results to those of the second-generation drug-eluting stents, which makes it attractive for use in the complex scenario of patients with multivessel coronary artery disease. RESUMO Desempenho do Stent Recoberto por Titânio-Oxido Nitrico em Pacientes com Doenca Coronaria Multiarterial Introdcao Ate o momento, nenhum estudo avaliou o stent recoberto por titânio-oxido nitrico em pacientes com doenca arterial coronariana multiarterial. Comparamos o desempenho do stent Titan-2® ao stents farmacologicos de segunda geragao nesse cenario. Metodos No periodo de 2011 a 2012, 284 pacientes foram tratados com o stent Titan-2®, dos quais 100 (35,2%) eram portadores de doenca arterial coronariana multiarterial. Esse grupo foi comparado a 100 pacientes, de um grupo de 304 (38,9%), com doenca arterial coronariana multiarterial, tratados com o stent farmacologico de segunda geracao com polimeros duraveis ou biodegradaveis. O desfecho primario foi a ocorrencia de eventos cardiacos adversos maiores em 1 ano. Resultados Caracteristicas clinicas, angiograficas e do procedimento nao apresentaram diferencas entre os grupos. A maioria dos pacientes do grupo Titan-2® era do sexo masculino (70%), com idade de 68,4 ± 12,9 anos e 25% eram diabeticos. Predominaram os quadros clinicos estaveis (68%), 51% tinham acometimento triarterial e a funcao ventricular estava preservada. A incidencia de eventos cardiovasculares adversos maiores em 1 ano no grupo Titan-2® foi de 21% (vs. 17%; p = 0,59), obito ocorreu em 3% (vs. 2%; p > 0,99) dos pacientes, infarto do miocardio em 5% (vs. 4%; p > 0,99) e nova revascularizacao miocardica em 13% (vs. 11%; p = 0,83). Nao foram constatadas tromboses de stent definitivas em nenhum grupo. Conclusoes O uso do Titan-2® apresentou resultados similares aos do stent farmacologico de segunda geracao, o que o torna atrativo para ser utilizado no complexo cenario de pacientes portadores de doenca arterial coronariana multiarterial.