Impact of occlusion duration on the success rate and outcomes of percutaneous coronary intervention in chronic total occlusions

ABSTRACTBackgroundInitial studies have shown that old occlusions or those with indeterminate occlusion duration have been associated with percutaneous coronary intervention (PCI) failure and a worse prognosis. This study aimed to determine the impact of occlusion duration on the success and outcomes of contemporary PCI on chronic total occlusion (CTO).MethodsThe authors analyzed a retrospective cohort of consecutive patients submitted to PCI in CTO, who were compared according to the confirmed occlusion duration (COD) < 12 months, ≥ 12 months, or indeterminate occlusion duration (IOD).ResultsA total of 168 patients were treated, 122 (72.6%) with COD (80 < 12 months, 42 ≥ 12 months) and 46 (24.7%) with an IOD. Lesion extension was 17.0 ± 13.6mm, in 2.90 ± 0.58mm vessels, and the anterograde approach was used in 98.8% of cases. Angiographic success was attained in 79.2% of patients (80.0% vs. 73.8% vs. 82.6%; p = 0.73). The main cause of failure was the inability to cross the lesion with the guidewire (68.6%). Occlusion duration had no impact on in-hospital events (4.8% vs. 7.1% vs. 6.0%; p = 0.73), which were almost entirely explained by periprocedural myocardial infarction, or on late outcomes (18.8% vs. 7.1% vs. 15.3%; p = 0.23). At the multivariate analysis, lesion length ≥ 20mm (odds ratio - OR = 7.27; 95% confidence interval - 95% IC 1.94-29.1; p = 0.003), calcification (OR = 4.72; 95% CI 1.19-19.1; p = 0.02), and tortuosity of the occluded segment (OR = 15.98; 95% CI 2.18-144.7; p = 0.007) were predictors of failure.ConclusionsOcclusion duration was not associated with increased failure rate of the procedure or worse PCI outcomes in CTO

Patent Foramen Ovale Closure for Splenic Infarction: An Unusual Presentation and an Unusual Indication

Background. Splenic infarction is a rare clinical condition. It is generally attributed to hematologic, vascular, cardioembolic, and infectious diseases or trauma. Case Presentation. We describe a rare case in an otherwise asymptomatic 41-year-old overweight woman with acute abdominal pain. Imaging work-up revealed splenic infarction. Common etiologies were excluded. A transesophageal echocardiography (TEE) revealed a patent foramen ovale (PFO). The patient was sent to closure with good outcome. Conclusion. Paradoxical embolism due to PFO can be a cause of splenic infarction, and its investigation and subsequent closure may be considered when there are no other causative disorders

Impacto do tempo de oclusão na taxa de sucesso e nos resultados da intervenção coronária percutânea em obstruções totais crônicas

RESUMOIntroduçãoEstudos iniciais mostram que oclusões antigas ou com tempo indeterminado têm sido associadas a insucesso da intervenção coronária percutânea (ICP) e a pior prognóstico. Nosso objetivo foi determinar o impacto do tempo de oclusão no sucesso e nos resultados da ICP contemporânea na obstrução total crônica (OTC).MétodosAnalisamos uma coorte retrospectiva de pacientes consecutivos que realizaram ICP em OTC, e que foram comparados de acordo com o tempo de oclusão confirmado (TOC) < 12 meses, ≥ 12 meses, ou indeterminado (TOI).ResultadosForam tratados 168 pacientes, 122 (72,6%) com TOC (80 < 12 meses, 42 ≥ 12 meses) e 46 (24,7%) com TOI. A extensão da lesão foi de 17,0 ± 13,6mm, em vasos de 2,90 ± 0,58mm, e a abordagem anterógrada foi utilizada em 98,8% dos casos. Sucesso angiográfico foi obtido em 79,2% dos pacientes (80,0% vs. 73,8% vs. 82,6%; p = 0,73). A principal causa de insucesso foi a incapacidade de cruzar a lesão com o fio‐guia (68,6%). O tempo de oclusão não teve impacto na taxa de eventos cardiovasculares hospitalares (4,8% vs. 7,1% vs. 6,0%; p = 0,73), explicados em sua quase totalidade pelos infartos do miocárdio periprocedimento, ou nos eventos tardios (18,8% vs. 7,1% vs. 15,3%; p = 0,23). Na análise multivariada, comprimento da lesão ≥ 20mm (odds ratio ‐ OR = 7,27; intervalo de confiança de 95% ‐ IC 95% 1,94‐29,1; p = 0,003), calcificação (OR = 4,72; IC 95% 1,19‐19,1; p = 0,02) e tortuosidade do segmento ocluído (OR = 15,98; IC 95% 2,18‐144,7; p = 0,007) foram preditores de insucesso.ConclusõesO tempo de oclusão não está associado ao aumento da taxa de insucesso do procedimento ou a piores resultados da ICP em OTC.ABSTRACTBackgroundInitial studies have shown that old occlusions or those with indeterminate occlusion duration have been associated with percutaneous coronary intervention (PCI) failure and a worse prognosis. This study aimed to determine the impact of occlusion duration on the success and outcomes of contemporary PCI on chronic total occlusion (CTO).MethodsThe authors analyzed a retrospective cohort of consecutive patients submitted to PCI in CTO, who were compared according to the confirmed occlusion duration (COD) < 12 months, ≥ 12 months, or indeterminate occlusion duration (IOD).ResultsA total of 168 patients were treated, 122 (72.6%) with COD (80 < 12 months, 42 ≥ 12 months) and 46 (24.7%) with an IOD. Lesion extension was 17.0 ± 13.6mm, in 2.90 ± 0.58mm vessels, and the anterograde approach was used in 98.8% of cases. Angiographic success was attained in 79.2% of patients (80.0% vs. 73.8% vs. 82.6%; p = 0.73). The main cause of failure was the inability to cross the lesion with the guidewire (68.6%). Occlusion duration had no impact on in‐hospital events (4.8% vs. 7.1% vs. 6.0%; p = 0.73), which were almost entirely explained by periprocedural myocardial infarction, or on late outcomes (18.8% vs. 7.1% vs. 15.3%; p = 0.23). At the multivariate analysis, lesion length ≥ 20mm (odds ratio ‐ OR = 7.27; 95% confidence interval ‐ 95% IC 1.94‐29.1; p = 0.003), calcification (OR = 4.72; 95% CI 1.19‐19.1; p = 0.02), and tortuosity of the occluded segment (OR = 15.98; 95% CI 2.18‐144.7; p = 0.007) were predictors of failure.ConclusionsOcclusion duration was not associated with increased failure rate of the procedure or worse PCI outcomes in CTO