Note: This guideline is for information purposes and should not replace the clinical judgment of a physician, who must ultimately determine the appropriate treatment for each patient.

Objectives To report clinical, angiographic characteristics, outcomes, and predictors of unsuccessful procedures in patients who underwent chronic total occlusion (CTO) percutaneous coronary interventions (PCI) in Latin America. Background CTO PCI has been increasingly performed worldwide, but there is a lack of information in this region. Methods An international multicenter registry was developed to collect data on CTO PCI performed in centers in Latin America. Patient, angiographic, procedural and outcome data were evaluated. Predictors of unsuccessful procedures were assessed by multivariable analysis. Results We have included data related to 1,040 CTO PCIs performed in seven countries in Latin America (Argentina, Brazil, Chile, Colombia, Ecuador, Mexico, and Puerto Rico). The mean age was 64 ± 10 years, and CTO PCI was performed mainly for angina control (81%) or treatment of a large ischemic area (30%). Overall technical success rate was 82.5%, and it was achieved with antegrade wire escalation in 81%, antegrade dissection/re‐entry in 8% and with retrograde techniques in 11% of the successful procedures. Multivariable analysis identified moderate/severe calcification, a blunt proximal cap and a previous attempt as independent predictors of unsuccessful procedures. In‐hospital major adverse cardiovascular events (MACE) occurred in 3.1% of the cases, death in 1% and cardiac tamponade in 0.9% Conclusions CTO PCI in Latin America has been performed mainly for ischemia relief. Procedures were associated with a success rate above 80% and low incidence of MACE. Predictors of unsuccessful procedures were similar to those previously reported in the literature.

Both novel DES were effective in reducing neointimal hyperplasia and 1-year re-intervention, compared to bare metal stents. Our findings also suggest that sirolimus is more effective than paclitaxel in reducing angiographic neointima, although this effect was not associated with better clinical outcomes.

A intervenção coronária percutânea cresceu de modo expressivo nas últimas décadas. Entretanto, relatos de resultados imediatos e a longo prazo desse procedimento em instituições brasileiras são esporádicos e restritos a alguns centros. A presente proposta objetiva descrever um sistema nacional para a avaliação dos indivíduos tratados por intervenção coronária percutânea no Brasil. Método: O Registro ICP-BR foi constituído por meio de rede informatizada para a captação de dados, via web, sobre angioplastias coronárias realizadas no dia a dia da cardiologia intervencionista, sem critérios de exclusão. Em sua fase piloto, 8 centros nacionais foram selecionados para a coleta inicial de dados. Relatamos o perfil clínico e a evolução intra-hospitalar dos primeiros pacientes incluídos. Resultados: De março de 2009 a dezembro de 2009, foram incluídos 1.249 pacientes na base de dados. No total, 60% foram tratados pelo Sistema Único de Saúde,

The biodegradable-polymer coated DES releasing either paclitaxel or sirolimus were effective in reducing the 3-year rate of re-interventions.