RESUMO
BACKGROUND: To evaluate the impact of percutaneous angioplasty (PA), objectively assessed with duplex-ultrasound, on 3-year clinical outcome. METHODS: Thirty-nine patients with atherosclerotic disease successfully treated by PA were included (40 limbs). All patients had critical ischemia with rest pain and ischemic ulcers due to infrainguinal obstructions alone. The patients were submitted to duplex ultrasound examination on the day before and on the first or second day after the procedure. Peak systolic velocities (PSV) were recorded in the anterior tibial, posterior tibial, and fibular arteries at the level of distal third of the leg. All patients were followed for 3 years. Comparison between groups with good and bad results were based on perioperative VPS gradient (GPSV) of the mean of the VPS in the 3 arteries. After 3 years, a good result was defined as a patient having no pain and complete healing of a previous ulcer or minor amputations. RESULTS: Mean age was 68.5±8.1 years with no difference in demographic characteristics (P>0.05). In 26 cases, the long-term result was good. Healing time ranged from 4 to 130 weeks (median 26.5). Bad long-term results were observed in 12 cases. Two lesions remained unhealed despite patent angioplasty. In 10 cases, a second procedure was carried out (repeat angioplasty in 6 and bypass in 4). TransAtlantic Inter-Society Consensus (TASC) II category A/B registered better clinical success then TASC II category C/D (P<0.05) at 1-year follow-up but not at 3 years (P=0.36). Two-year limb salvage was 92.5%±4.2%. Primary patency was 52.5%±9.5% at 3 years. GVPS was 21.9 cm/sec in the good results group and 24.7 cm/sec in the bad results group (P>0.05). The quality of the initial result, as measured by GPSV, was not associated with long-term success (P>0.05). CONCLUSIONS: An initially successful procedure indicated by the degree of increased flow is not related to long-term durability and ulcer healing.
Assuntos
Angioplastia/métodos , Isquemia/cirurgia , Perna (Membro)/irrigação sanguínea , Idoso , Velocidade do Fluxo Sanguíneo , Feminino , Artéria Femoral/diagnóstico por imagem , Artéria Femoral/fisiopatologia , Seguimentos , Humanos , Isquemia/diagnóstico por imagem , Isquemia/fisiopatologia , Masculino , Artéria Poplítea/diagnóstico por imagem , Artéria Poplítea/fisiopatologia , Artéria Poplítea/cirurgia , Estudos Prospectivos , Artérias da Tíbia/diagnóstico por imagem , Artérias da Tíbia/fisiopatologia , Artérias da Tíbia/cirurgia , Fatores de Tempo , Resultado do Tratamento , Ultrassonografia Doppler Dupla , Grau de Desobstrução VascularRESUMO
UNLABELLED: Popliteal artery aneurysms are frequent and may lead to thromboembolic events and limb loss. PURPOSE: To evaluate clinical and ultrasonographic follow-up of patients who underwent exclusion of a popliteal artery aneurysm using the technique proposed by Edwards. METHODS: Data of all patients who underwent surgery to repair a popliteal artery aneurysm at Hospital das Clinicas, the São Paulo University Medical School between 1996 and 2004 were reviewed. Inclusion criteria were repair with aneurysm exclusion and bypass using the technique proposed by Edwards, as well as the existence of preoperative and postoperative measurements of the aneurysmal sac. RESULTS: Data of 16 patients who underwent 20 procedures for popliteal artery aneurysm exclusion and bypass were available to analysis. The preoperative diameter of the popliteal artery aneurysms ranged from 1.3 cm to 6.1 cm (mean = 3.1 cm). Patients underwent duplex ultrasound scanning 1 month to 7 years after surgical repair. Follow-up of the 20 cases revealed that 10 aneurysms exhibited decreased mean transverse diameters, ranging from 0.2 to 2.3 cm, while 7 had increased in diameter, ranging 0.3 to 3.3 cm, and 3 remained unchanged. Flow was observed only in 5 out of the 20 procedures, 3 of which (60%) had increased diameters. CONCLUSION: Although exclusion is a widely accepted procedure for the repair of popliteal artery aneurysms, data in the literature and the results of this study, which did not include cases of rupture or compression, suggest that strict follow-up of patients who undergo aneurysm exclusion is necessary.
Assuntos
Aneurisma/cirurgia , Artéria Poplítea/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Aneurisma/diagnóstico por imagem , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Artéria Poplítea/diagnóstico por imagem , Estudos Retrospectivos , UltrassonografiaRESUMO
Os aneurismas da artéria poplítea são freqüentes e estão associados a eventos trombo-embólicos que podem acarretar isquemia grave com risco de perda da extremidade inferior acometida. OBJETIVO: Avaliar a evolução clínica dos pacientes e ultra-sonográfica dos aneurismas de artéria poplítea excluídos pela técnica de Edwards. MÉTODO: Análise retrospectiva dos pacientes com diagnóstico de aneurisma da artéria poplítea operados no Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, no período compreendido entre os anos de 1996 a 2004. Foram incluídos os pacientes submetidos à exclusão do aneurisma pela técnica de Edwards e que possuíam diâmetro transverso máximo do aneurisma mensurado no período pré e pós-operatório. RESULTADOS: Dezesseis pacientes foram submetidos a correção cirúrgica de 20 aneurismas. O diâmetro do aneurisma no período pré-operatório variou entre 1,3 cm a 6,1 cm (média 3,1cm). O controle ultrasonográfico foi realizado em intervalo de 1 mês a 7 anos do procedimento cirúrgico. Houve diminuição do diâmetro do aneurisma de artéria poplítea em 10/20 extremidades (variação de 0,2 cm a 2,3 cm), aumento em 7/20 (variação de 0,3 cm a 3,3 cm) e estabilidade em 3/20. Observou-se a ocorrência de fluxo no saco aneurismático em 5 dentre os 20 procedimentos. Destes, três apresentaram crescimento do mesmo (60% dos casos com fluxo). CONCLUSÃO: Esta amostra de pacientes, sem rotura ou sinais e sintomas de compressão, associada à análise da literatura, demonstra que o seguimento estreito do aneurisma excluído é necessário.