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Resultados da Cirurgia de Revascularização femoro-distal: análise retrospectiva de 5 anos

Title
Resultados da Cirurgia de Revascularização femoro-distal: análise retrospectiva de 5 anos
Type
Article in National Scientific Journal
Year
2008
Authors
Vilaça I.
(Author)
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Sampaio S.
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FMUP
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Vidoedo J.C.
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Dias P.
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Carvalho J.
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Eufrásio S.
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Teixeira J.
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FMUP
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Roncon Albuquerque R.
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FMUP
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Scientific classification
CORDIS: Health sciences > Medical sciences > Medicine > Surgery
Other information
Resumo (PT): Objectivo: Avaliar os resultados da cirurgia de revascularização femoro-distal no tratamento da doença arterial oclusiva periférica (DAOP), nomeadamente a permeabilidade primária e o tempo livre de amputação. Método e Pacientes: Os autores apresentam um estudo retrospectivo de 122 doentes consecutivamente submetidos a bypass femoro-distal entre Janeiro de 1999 e Dezembro de 2002 no Hospital de S. João. O método de Kaplan-Meier foi utilizado para calcular a permeabilidade primária e o tempo livre de amputação; as diferenças entre grupos foram avaliadas com modelos de riscos proporcionais de Cox. Resultados: Aos 5 anos as taxas de permeabilidade primária e de preservação do membro foram respectivamente de 67,1% e de 71,1%. Os doentes diabéticos apresentaram risco de amputação major significativamente superior, de 49% aos 5 anos, em comparação com 18% nos doentes não diabéticos (p=0,001). O sexo feminino e o hábito de fumar associam-se a uma tendência de maior risco de oclusão precoce de bypass e de amputação major, enquanto que a hipertensão arterial e bypasses efectuados com veia grande safena (VGS) in situ associaram-se a uma tendência de menor risco de oclusão precoce de bypass. Conclusão: O nosso estudo reforça a ideia de que a revascularização arterial infrainguinal é um procedimento seguro e eficaz, com taxas de permeabilidade primária e de preservação do membro aceitáveis. Contudo, os doentes diabéticos associaram-se a piores resultados, nomeadamente a um risco de amputação major superior em comparação com os doentes não diabéticos.
Abstract (EN): Purpose: We describe the outcomes of femoro-distal bypass procedures used to treat peripheral arterial occlusive disease (PAOD). The aim of this retrospective analysis was to evaluate primary patency and limb salvage rates at 5 years. Methods and Patients: We retrospectively studied 122 consecutive patients who underwent femoro-distal bypass surgery from 1999 to 2002. Information was collected from clinical charts at S. João Hospital, Porto, Portugal. Kaplan-Meier curves were used to calculate primary patency and limb salvage rates; groups were compared using Cox proportional hazards models. Results: Five-year cumulative primary patency was 67,1% and limb-salvage rate was 71,1%. Major amputation risk for diabetics was significantly higher - 49% - compared with 18% in non-diabetics (p=0,0001). There were trends associating major amputation with women and smokers; there were also trends associating hypertension and in situ saphenous vein bypass with lower risk of major amputation. Conclusion: Our prelimary results support the view that infrainguinal revascularization can be safely performed, with acceptable five-years cumulative primary patency and major amputation rates. The risk of major amputation, however, is significantly increased in diabetic patients.
Language: Portuguese
Type (Professor's evaluation): Scientific
Contact: Isabel Vilaça
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