mitral valve surgery using right anterolateral thoracotomy: is the aortic cannulation a safety procedure? cirurgia valvar mitral via toracotomia ântero-lateral direita: a canulação aórtica é segura?

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2010
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Abstract
INTRODUCTION: The right anterolateral thoracotomy is an alternative technique for surgical approach of mitral valve. In these cases, femoral-femoral bypass still has been used, rising occurrence of complications related to femoral cannulation. Objective: Describe the technique and results of mitral valve treatment by right anterolateral thoracotomy using aortic cannulation for cardiac pulmonary bypass (CPB). METHODS: From 1983 e 2008, 100 consecutive female patients, with average age 35 ±13 years, 96 (96%) underwent mitral valve surgical treatment in the Heart Institute of São Paulo. A right anterolateral thoracotomy approach associated with aortic cannulation was used for CPB. Eighty (80%) patients had rheumatic disease and 84 (84%) patients presented functional class III or IV. RESULTS: Were performed 45 (45%) comissurotomies, 38 (38%) valve repairs, 7(7%) mitral valve replacements, seven (7%) recomissurotomies and three (3%) prosthesis replacement. Sparing surgery was performed in 90 (90%) patients. The average CPB and clamp time were 57 ± 27 min e 39 ± 19 min, respectively. There were no in-hospital death, reoperation due to bleeding and convertion to sternotomy. Introperative complications were related to heart harvest (5%), especially in reoperations (3%). The most important complications in postoperative period were related to pulmonary system (11%), followed by atrial fibrilation (10%) but without major systemic repercussions. The mean inhospital length of stay was 8 ± 3 days. Follow-up was 6.038 patients/month. Actuarial survival was 98.0 ± 1.9% and freedom from reoperation was 81.4 ± 7.8% in 180 months. CONCLUSION: The right anterolateral thoracotomy associated with aortic cannulation in mitral valve surgery is a simple technique, reproducible and safety.
INTRODUÇÃO: A toracotomia ântero-lateral direita tem sido utilizada como uma alternativa para a abordagem cirúrgica da valva mitral. Nestes casos, a canulação femoral continua sendo utilizada, possibilitando a ocorrência de complicações. OBJETIVO: Descrever a técnica e os resultados do tratamento da valva mitral via toracotomia ântero-lateral direita, utilizando a canulação aórtica para instalação da circulação extracorpórea. MÉTODOS: Entre 1983 e 2008, 100 pacientes consecutivos, com média de idade 35 13 anos, 96 (96%) do sexo feminino, foram submetidos ao tratamento cirúrgico da valva mitral no InCor-HC-FMUSP, através da toracotomia ântero-lateral direita associada à canulação aórtica. Destes, 80 (80%) pacientes apresentavam etiologia reumática e 84 (84%) classe funcional III ou IV. RESULTADOS: Foram realizadas 45 (45%) comissurotomias, 38 (38%) plásticas, sete (7%) substituições da valva mitral, sete (7%) re-comissurotomias e três (3%) substituição de prótese mitral. Cirurgia conservadora foi realizada em 90 (90%) dos pacientes. O tempo médio de CEC e pinçamento foi 57 27 min e 39 19 min, respectivamente. Não ocorreram óbitos hospitalares, reoperações por sangramento ou conversão para esternotomia. Complicações intraoperatórias foram relacionadas à dissecção cardíaca (5%), principalmente nas reoperações (3%). As principais complicações pós-operatórias foram relacionadas ao sistema pulmonar (11%), seguidas de fibrilação atrial (10%), porém sem repercussões sistêmicas graves. A média de internação hospitalar foi de 8 3 dias. O seguimento foi 6.038 pacientes/mês. A sobrevida atuarial e livre de reoperação foi de 98,0 ± 1,9% e 81,4 ± 7,8% em 180 meses, respectivamente. CONCLUSÃO: A utilização da toracotomia ântero-lateral direita associada a canulação aórtica na abordagem cirúrgica da valva mitral é uma técnica simples, reprodutível e segura.
Reference Key
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Authors ;Marco Antonio Vieira Guedes;Pablo Maria Alberto Pomerantzeff;Carlos Manuel de Almeida Brandão;Marcelo Luiz Campos Vieira;Max Grinberg;Noedir Antonio Groppo Stolf
Journal 2017 international conference on information technology systems and innovation, icitsi 2017 - proceedings
Year 2010
DOI
10.1590/S0102-76382010000300007
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-76382010000300007
Keywords
thoracic surgery surgical procedures mitral valve extracorporeal circulation heart valves

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