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• W4254517015 abstract "The benefits of direct stenting in non-ST-segmentelevation acute coronary syndromes (NSTE ACS) are not clearly established. We compared stenting with or without pre-dilation (direct stenting) of the target lesion in this population. Single center, retrospective registry including NSTE ACS patients treated from 2009 to 2010. Stenting for bifurcations, saphenous vein grafts, and in-stent restenosis were excluded. The primary endpoint was the comparison of in-hospital and late major adverse cardiac events (MACE). Of a total of 182 patients, 42.3% were treated by direct stenting. Mean age was 61.1 ± 11.0 years, 67% were male and 33.5% were diabetics. Patients in the pre-dilation group had more type C lesions (37.1% vs. 18.2%; P = 0.01), smaller reference vessel diameter (2.3 [2.0-2.7] mm vs. 2.7 [2.2-3.1] mm; P = 0.01) and smaller preintervention minimal luminal diameter (0.5 [0.1-0.7] mm vs.0.6 [0.4-1.0] mm; P < 0.01). Moderate/severe calcification was observed in 13.2% of the cases, and was equally distributed in both groups. There were no differences in the occurrence of periprocedural angiographic complications (3.9% vs. 4.8%; P = 0.99). Inhospital MACE was not different between groups, although patients submitted to direct stenting have shown half of the events (2.6% vs. 5.7%; P = 0.47). At the end of 1 year, the MACE rate was similar for the two groups (6.5% vs. 5.7%; P > 0.99). In this series of NSTE ACS patients, direct stenting was not associated with better angiographic or clinical outcomes. However, lesion complexity remains a determinant factor in the choice of the pre-dilation strategy in daily practice. Implante de Stents Com ou Sem Pré-Dilatação em Pacientes com Síndrome Coronária Aguda Sem Supradesnivelamento do Segmento ST O benefício do implante direto de stent não está bem estabelecido na síndrome coronária aguda sem supradesnivelamento do segmento ST (SCASST). Comparamos aqui o implante de stent, como usem pré-dilatação (stent direto) da lesão-alvo nessa população. Registro unicêntrico, retrospectivo, que incluiu pacientes com SCASST tratados entre 2009 a 2010. Foram excluídas lesões reestenóticas, lesões em enxertos de safena ou em bifurcações. O desfecho primário foi a comparação de eventos cardíacos adversos maiores (ECAM) hospitalares e tardios. Do total de 182 pacientes avaliados, 42,3% foram tratados com stent direto. A idade da população foi de 61,1 ± 11,0 anos, sendo 67% do sexo masculino e 33,5% diabéticos. Os pacientes do grupo pré-dilatação apresentaram mais lesões do tipo C (37,1% vs. 18,2%; P < 0,01), menor diâmetro de referência do vaso (2,3 [2,0-2,7] mm vs. 2,7 [2,2-3,1] mm; P < 0,01) e menor diâmetro luminal mínimo pré-intervenção (0,5 [0,1-0,7] mm vs. 0,6 [0,4-1,0] mm; P < 0,01). Calcificação moderada/grave foi evidenciada em 13,2% dos casos, igualmente distribuídos entre os grupos. Não foram observadas diferenças na ocorrência de complicações angiográficas periprocedimento (3,9% vs. 4,8%; P > 0,99). As taxas de ECAM hospitalar não diferiram entre os grupos, embora os pacientes submetidos ao implante direto tenham apresentado metade dos eventos (2,6% vs. 5,7%; P = 0,47). Ao final de 1 ano, os ECAM foram semelhantes entre os grupos (6,5% vs. 5,7%; P > 0,99). Nesta série de pacientes com SCASST, o implante direto de stent não esteve associado a melhores resultados angiográficos ou clínicos. Contudo, a complexidade da lesão permanece como fator determinante na escolha da estratégia de pré-dilatação na prática diária." @default.
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• W4254517015 date "2013-01-01" @default.
• W4254517015 modified "2023-10-05" @default.
• W4254517015 title "Stent Implantation With or Without Pre-Dilation in Non-ST-Segment-Elevation Acute Coronary Syndrome Patients" @default.
• W4254517015 doi "https://doi.org/10.1016/s0104-1843(13)50063-4" @default.
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