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Papers by Sérgio Maranha

Journal of Transcatheter Interventions

Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success ... more Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success rates, as well as the most common cause of incomplete revascularization and coronary artery bypass grafting. Their recanalization requires advanced techniques, dedicated materials, skilled operators and, usually, double arterial access, which makes the procedure more complex, increasing the chance of complications. Our goal is to characterize the most frequent complications in percutaneous treatment of chronic total occlusions in contemporary practice. Methods: We searched the PubMed/MEDLINE databases using the keywords "coronary chronic total occlusion", "complications" and "angioplasty". We followed the PRISMA recommendations. Results: Of a total of 430 references initially reviewed, 6 met the inclusion and exclusion criteria of the analysis, and accounted for the final sample. The procedural success rate was high, between 76% and 96%. The most commonly reported complications were periprocedural myocardial injury (8.6%), vascular access-related complications (2.5%), and cardiac tamponade secondary to coronary perforations (1.3%). Conclusion: Percutaneous treatment of chronic total occlusions creates a challenging scenario, with a high potential for complications. Patient selection must be focused on the anticipated benefits, and operators must be properly trained and capable of successfully conducting the procedure, recognizing and preventing potential procedural adverse events, and managing them when needed.

Acta Biomédica Brasiliensia

A hiperplasia intimal é definida como uma resposta exacerbada à reepitelização de células muscula... more A hiperplasia intimal é definida como uma resposta exacerbada à reepitelização de células musculares lisas e matrizes extracelulares no compartimento da íntima que ocorre entre 4-6 semanas de pós-operatório estendendo-se até um ano após o ato cirúrgico. Esse processo parece estar relacionado com a isquemia transitória do enxerto após a retirada do seu habitat natural, reperfusão e estresse na parede do vaso após o implante na circulação coronária. O local mais acometido pela hiperplasia intimal é ao nível das anastomoses. <strong>Objetivo:</strong> Este estudo objetiva relatar o caso de uma paciente de 67 anos admitida no Hospital São José do Avaí (HSJA) com Síndrome Coronariana Aguda após falha de enxertos por hiperplasia intimal três meses após a revascularização do miocárdio e propor uma alternativa rápida, eficaz e menos invasiva para condição clínica abordada. <strong>Materiais e Métodos</strong>: este estudo será do tipo relato de caso realizado através...

Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success ... more Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success rates, as well as the most common cause of incomplete revascularization and coronary artery bypass grafting. Their recanalization requires advanced techniques, dedicated materials, skilled operators and, usually, double arterial access, which makes the procedure more complex, increasing the chance of complications. Our goal is to characterize the most frequent complications in percutaneous treatment of chronic total occlusions in contemporary practice. Methods: We searched the PubMed/MEDLINE databases using the keywords "coronary chronic total occlusion", "complications" and "angioplasty". We followed the PRISMA recommendations. Results: Of a total of 430 references initially reviewed, 6 met the inclusion and exclusion criteria of the analysis, and accounted for the final sample. The procedural success rate was high, between 76% and 96%. The most commonly reported complications were periprocedural myocardial injury (8.6%), vascular access-related complications (2.5%), and cardiac tamponade secondary to coronary perforations (1.3%). Conclusion: Percutaneous treatment of chronic total occlusions creates a challenging scenario, with a high potential for complications. Patient selection must be focused on the anticipated benefits, and operators must be properly trained and capable of successfully conducting the procedure, recognizing and preventing potential procedural adverse events, and managing them when needed.

Revista Brasileira de Cardiologia Invasiva, 2007

Mozer GW, et al. Uso de Duplo Cateter-Guia Como Auxílio Para Tratamento de Perfuração Coronariana... more Mozer GW, et al. Uso de Duplo Cateter-Guia Como Auxílio Para Tratamento de Perfuração Coronariana Durante Angioplastia Primária. Rev Bras Cardiol Invas 2007; 15(3): 295-299. Rev Bras Cardiol Invas 2007; 15(3): 297-301. ... Gláucio Werneck Mozer1, João Eduardo Tinoco de ...

Journal of Transcatheter Interventions

Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success ... more Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success rates, as well as the most common cause of incomplete revascularization and coronary artery bypass grafting. Their recanalization requires advanced techniques, dedicated materials, skilled operators and, usually, double arterial access, which makes the procedure more complex, increasing the chance of complications. Our goal is to characterize the most frequent complications in percutaneous treatment of chronic total occlusions in contemporary practice. Methods: We searched the PubMed/MEDLINE databases using the keywords "coronary chronic total occlusion", "complications" and "angioplasty". We followed the PRISMA recommendations. Results: Of a total of 430 references initially reviewed, 6 met the inclusion and exclusion criteria of the analysis, and accounted for the final sample. The procedural success rate was high, between 76% and 96%. The most commonly reported complications were periprocedural myocardial injury (8.6%), vascular access-related complications (2.5%), and cardiac tamponade secondary to coronary perforations (1.3%). Conclusion: Percutaneous treatment of chronic total occlusions creates a challenging scenario, with a high potential for complications. Patient selection must be focused on the anticipated benefits, and operators must be properly trained and capable of successfully conducting the procedure, recognizing and preventing potential procedural adverse events, and managing them when needed.

Acta Biomédica Brasiliensia

A hiperplasia intimal é definida como uma resposta exacerbada à reepitelização de células muscula... more A hiperplasia intimal é definida como uma resposta exacerbada à reepitelização de células musculares lisas e matrizes extracelulares no compartimento da íntima que ocorre entre 4-6 semanas de pós-operatório estendendo-se até um ano após o ato cirúrgico. Esse processo parece estar relacionado com a isquemia transitória do enxerto após a retirada do seu habitat natural, reperfusão e estresse na parede do vaso após o implante na circulação coronária. O local mais acometido pela hiperplasia intimal é ao nível das anastomoses. <strong>Objetivo:</strong> Este estudo objetiva relatar o caso de uma paciente de 67 anos admitida no Hospital São José do Avaí (HSJA) com Síndrome Coronariana Aguda após falha de enxertos por hiperplasia intimal três meses após a revascularização do miocárdio e propor uma alternativa rápida, eficaz e menos invasiva para condição clínica abordada. <strong>Materiais e Métodos</strong>: este estudo será do tipo relato de caso realizado através...

Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success ... more Background: Chronic total occlusion is the subtype of lesions with the lowest procedural success rates, as well as the most common cause of incomplete revascularization and coronary artery bypass grafting. Their recanalization requires advanced techniques, dedicated materials, skilled operators and, usually, double arterial access, which makes the procedure more complex, increasing the chance of complications. Our goal is to characterize the most frequent complications in percutaneous treatment of chronic total occlusions in contemporary practice. Methods: We searched the PubMed/MEDLINE databases using the keywords "coronary chronic total occlusion", "complications" and "angioplasty". We followed the PRISMA recommendations. Results: Of a total of 430 references initially reviewed, 6 met the inclusion and exclusion criteria of the analysis, and accounted for the final sample. The procedural success rate was high, between 76% and 96%. The most commonly reported complications were periprocedural myocardial injury (8.6%), vascular access-related complications (2.5%), and cardiac tamponade secondary to coronary perforations (1.3%). Conclusion: Percutaneous treatment of chronic total occlusions creates a challenging scenario, with a high potential for complications. Patient selection must be focused on the anticipated benefits, and operators must be properly trained and capable of successfully conducting the procedure, recognizing and preventing potential procedural adverse events, and managing them when needed.

Revista Brasileira de Cardiologia Invasiva, 2007

Mozer GW, et al. Uso de Duplo Cateter-Guia Como Auxílio Para Tratamento de Perfuração Coronariana... more Mozer GW, et al. Uso de Duplo Cateter-Guia Como Auxílio Para Tratamento de Perfuração Coronariana Durante Angioplastia Primária. Rev Bras Cardiol Invas 2007; 15(3): 295-299. Rev Bras Cardiol Invas 2007; 15(3): 297-301. ... Gláucio Werneck Mozer1, João Eduardo Tinoco de ...