Reconstrucao arterial do segmento iliacofemoral atraves de endarterectomia de eversao / Arterial reconstruction of the iliofemoral segment by eversion endarterectomy

De outubro de 1985 a dezembro de 1988 foram realizadas 31 endarterectomias de eversao no segmento iliacofemoral, em 29 pacientes portadores de arteriosclerose obliterante periferica. A indicacao cirurgica foi por lesao trofica no membro inferior em 74 por cento dos casos e por dor isquemica de repouso nos 26 por cento restantes. Em 11 operacoes foi realizada profundoplastia associada e em oito casos derivacao femoropoplitea com veia safena. Houve seis casos de obstrucao precoce da reconstrucao, sendo quatro reoperados com sucesso e dois nao reoperados evoluiram para amputacao de coxa. Nos casos com fluxo restabelecido imediatamente nao houve obstrucao durante o periodo de segumento, o qual variou de um a 34 meses, e nao ocorreu tambem qualquer complicacao tardia relacionada com a operacao. Houve um obito pos-operatorio que resultou em taxa de mortalidade de 3,2 por cento. Dois pacientes apresentaram tardiamente manifestacao de isquemia grave no membro oposto ao operado inicialmente, sendo ambos submetidos, com sucesso, ao mesmo tipo de cirurgia. Em funcao dos resultados, pode-se concluir que a endarterectomia de eversao iliacofemoral e uma solucao alternativa adequada a cirurgia convencional de reconstrucao aortiliacofemoral, nos pacientes portadores de isquemia critica do membro inferior.

[Arterial reconstruction of the iliofemoral segment by eversion endarterectomy]. / Reconstrução arterial do segmento iliacofemoral através de endarterectomia de eversão.

From October 1985 to December 1988, 31 iliofemoral eversion endarterectomies were performed in 29 patients with arteriosclerosis. The surgical procedure was carried out for trophic lesions in 74% of the patients and for ischemic rest pain in the remaining 26%. In 11 operations the endarterectomy was associated with profundoplasty, and in eight with saphenous vein femoropopliteal bypass. There were six immediate failures, four of them submitted to successful reoperations, and two to above knee amputations. In cases with good immediate patency no complications occurred during the follow-up periods which ranged from one to 34 months. With one post-operative death the mortality rate was 3.2%. Two patients displayed later severe ischemic manifestations in the opposite limbs and were both submitted to the same type of operation with good result. It may be concluded that iliofemoral eversion endarterectomy is an appropriate alternative procedure to the aortoiliofemoral reconstruction surgery in patients with severe ischemia of the lower limbs.

Arterites dependentes de processo infeccioso: a conveniencia do uso de heparina / Arteritis dependent of infectious process: the convenience of heparin use

Em 20 pacientes com arterite periferica foram investigadas 1) a presenca do agente etiologico nos vasos pertencentes as areas isquemicas, 2) a relacao entre o tempo de instalacao e de evolucao das lesoes cutaneas e de extremidades e o processo infeccioso, e 3) a conveniencia da anticoagulacao terapeutica. Dez pacientes eram portadores de doenca meningococica com hemocultura positiva para Neisseria meningitidis. Indetificou-se a presenca de meningococo em vasos das areas isquemico-necroticas, atraves de microscopia eletronica. As lesoes cutaneas tiveram instalacao e evolucao rapidas e no momento do diagnostico clinico da infeccao meningococia, elas ja eram irreversiveis. Por isso, considerou-se que a anticoagulacao terapeutica nao seria eficiente. Cinco pacientes tinham infeccao pulmonar ou gastrointestinal. Nao se encontrou microrganismos nos vasos das areas lesadas. As lesoes cutaneas tiveram instalacao e evolucao ao longo de dois a seis dias apos o momento do diagnostico clinico do quadro infeccioso. Por isso, considerou-se conveniente a heparinizacao visando bloquear o alastramento de coagulacao intravascular secundaria a vasculite disseminada. Cinco pacientes tiveram possivel arterite de sensibilizacao pos-estreptococica (tres) e arterite de sensibilizacao pos-sarampo (dois). Nao se identificou microrganismo nos vasos das areas lesadas. As lesoes cutaneas e de extremidades instalaram-se cinco a 21 dias apos resolucao clinica da infeccao pregressa e evoluiram ate a forma definitiva por um periodo de um a quatro dias. considerou-se conveniente iniciar a heparinizacao no periodo de evolucao das lesoes perifericas, pretendendo-se assim, reduzir a intensidade da isquemia por bloqueio da coagulacao intravascular secundaria a vasculite...

[Arteritis dependent on infective process: the convenience of heparin use]. / Arterites dependentes de processo infeccioso: a conveniência do uso de heparina.

Twenty patients with peripheral arteritis due to an infectious disease were studied with the purpose to detect the etiological agent in the vessels belonging to ischemic areas; to establish the relationship between the onset and evolution of the ischemic lesions and the infectious disease; and to verify the appropriateness of the treatment with anticoagulants. Ten patients had meningococal disease with positive blood culture for Neisseria meningitidis. The meningococci were found in vessel walls of ischemic areas. The cutaneous lesions had sudden onset and a rapid evolution. Five patients had pneumonia or gastroenteritis. No microorganisms were detected in the vessel walls of the ischemic areas. The cutaneous necrotic lesions appeared from two to six days after the infectious disease was diagnosed. Therefore, heparinization was considered appropriate to block the extension of the disseminated intravascular coagulation secondary to the vasculitis. Three patients had, probably, post-streptococcal sensibilization arteritis and two post-measles arteritis. No etiological agent was identified in the vessel walls. The necrotic lesions of the extremities appeared from five to 21 days after the clinical course of the infection. The lesions had the complete evolution in a period from one to four days. It was considered appropriate to start the heparinization in the evolutive period of the peripheral lesions in an attempt to reduce the ischemia by the interruption of the intravascular coagulation related to the vasculitis. In heparinized patients in whom the necrotic lesions did not extend completely in the extremities, the evolution to irreversible gangrene and limb loss did not occur.(ABSTRACT TRUNCATED AT 250 WORDS)