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Inicio Cirugía Española (English Edition) Lymphoscintigraphy study of oedema after femoropopliteal segment surgery
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Vol. 88. Issue 1.
Pages 36-40 (July 2010)
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Vol. 88. Issue 1.
Pages 36-40 (July 2010)
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Lymphoscintigraphy study of oedema after femoropopliteal segment surgery
Estudio mediante linfogammagrafía isotópica del edema postquirúrgico tras cirugía del sector fémoro-poplíteo
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Alberto Martorella,
Corresponding author
, Virginia Vallejosb, Carlos Estebana, Marta Miláb, José M. Callejasa, Manuel Fraileb
a Servicio de Angiología y Cirugía Vascular, Hospital Universitario Germans Trías i Pujol, Badalona, Barcelona, Spain
b Servicio de Medicina Nuclear, Hospital Universitario Germans Trías i Pujol, Badalona, Barcelona, Spain
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Abstract
Introduction

Post-surgical oedema of the femoropopliteal segment is a frequent complication, unrelated to the severity of the previous symptoms or changes in subsequent distal arterial pressure. The aim of the study is to assess whether the oedema present in femoropopliteal bypass patients is of lymphatic origin, and the possible influence of the prosthesis and the type of intervention used.

Patients and methods

An analytical, observational and case-control study of 30 patients who had a femoropopliteal bypass. Isotopic lymphoscintigraphy of the superficial and deep lymphatic system was performed on both limbs in all patients selected for the study.

Results

The saphenous vein was used in 19 patients and PTFE in 11. The patients were divided into controls, 15 without oedema, and cases, 15 with oedema. Surgery technique: 9 reconstructions of the popliteal portion (1st p.p.), 18 third popliteal portion (3rd p.p.), and 3 distal branches.

Scintigraphy findings

Asymmetric lymphatic drainage between the 2 limbs was observed in the all 30 examinations, except 1 case (which did not have oedema). There was no lymphatic drainage in 5 cases (one developed oedema). Cases with controls and patients with an autologous or synthetic graft, as well as shunts above and below the knee, were compared. The only statistical difference obtained was that the latter developed oedema more often than those performed close to the knee.

Conclusions

Therefore, the scintigraphy findings did not point to lymphatic damage as a cause of post-femoropopliteal surgery oedema. The material used did not appear to influence this. The below-knee shunts suffered more oedema than those above the knee.

Keywords:
Femoropopliteal bypass
Oedema
Isotopic lymphoscintigraphy
Resumen
Introducción

El edema postcirugía del sector femoropoplíteo es una complicación frecuente, no relacionada con la gravedad de los síntomas previos ni con los cambios en la PA distal posterior. El objetivo del estudio es evaluar si el edema observado en los pacientes intervenidos de bypass femoropoplíteo es de causa linfática, y la posible influencia del tipo de prótesis utilizada y del tipo de intervención.

Pacientes y métodos

Estudio analítico observacional de casos control con 30 pacientes intervenidos de bypass femoropoplíteo. Se ha realizado linfogammagrafía isotópica del sistema linfático superficial y profundo de ambas extremidades en todos los pacientes seleccionados para el estudio.

Resultados

Se utilizó vena safena en 19 pacientes y PTFE en 11. Quince pacientes fueron controles (sin edema) y 15 casos (con edema). Tipo de cirugía: 9 reconstrucciones a primera porción de poplítea (1.a p.p.), 18 a tercera porción de poplítea (3.a p.p.) y 3 a ramas distales.

Hallazgos gammagráficos: en las 30 exploraciones se observó asimetría del drenaje linfático entre las 2 extremidades, excepto en 1 caso (que no presentó edema). En 5 no había drenaje linfático (uno desarrolló edema). Se compararon casos con controles y pacientes con injerto autólogo y sintético, así como derivaciones por encima y por debajo de la rodilla. La única significación estadística que se obtuvo fue que estos últimos desarrollaron edema con mayor frecuencia que los practicados proximalmente a la rodilla.

Conclusión

Por tanto los hallazgos linfogammagráficos no apuntan al daño linfático como causa del edema postcirugía femoropoplítea. Tampoco el material utilizado parece tener influencia. Las derivaciones infrageniculares sufren más edema que las suprageniculares.

Palabras clave:
Bypass femoropoplíteo
Edema
Linfogammagrafía isotópica
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Copyright © 2010. Asociación Española de Cirujanos
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