Methods: The mid-term results of 20 patients who were diagnosed with symptomatic steal syndrome by clinical and Doppler USG evaluation and treated with arterially pressure monitorized polytetrafluoroethylene (PTFE) banding method between January 2002 - December 2009 were studied. All the patients had aneurysmatic brachiocephalic arteriovenous fistula (AVF). Peroperatively, blood pressure was monitorized from the proximal of the fistula, brachial artery and radial artery and the radial/ brachial index values were recorded. Fistulas were constricted until the lower treshold of the radial-brachial index became 0.6. For the banding procedure PTFE grafts long enough to completely cover the aneurysmatic segment were used. Postoperatively, patients were asked to return for follow-ups within the 1st month and at three-month intervals thereafter. The fistula patency and the symptoms were evaluated and recorded in the follow-ups.
Results: Symptoms were not alleviated in three patients at the 1st month follow-up. These patients underwent rebanding. In the remaining patients no early or late complications developed. All patients could receive hemodialysis in the early period and the symptoms were resolved. Other than the two patients who underwent rebanding, no cases of thrombosis were detected at the end of the first year.
Conclusion: The main surgical procedures for surgical treatment of post-AVF steal syndrome are distal revascularization-interval ligation, banding, T-banding, graft interpositioning and AVF ligation. There are no large surgery studies involving patients treated with these methods. While banding procedure is technically easy, insufficient banding causes perpetuation of steal syndrome and more than necessary constriction causes thrombosis. In this study one year patency and thrombosis rates were 90% and 10%, respectively and the rate of relief of symptoms was 95%. We think that controlled banding with brachial and radial artery pressure monitoring reduces risk of fistula thrombosis and repeat procedures for insufficient constructions.
Bu yöntemlerden bazıları, fizik muayene yöntemleri, pletismografi ile noninvaziv parmak ucu basınç ölçümü, ameliyat sırası renkli Doppler USG ile kombine edilmiştir.[4] Fakat brakiyal ve r adiyal a rter basınç monitörizasyonu ile kontrollü banding tanımlanmış bir işlem değildir. Fistül çapını çok daraltmadan kabul edilebilir radiyal-brakiyal indeksin sağlanmasının çalma sendromu tedavisinde yeterli olabileceği ve tromboz riskini azaltabileceği öngörülerek çalışmamız planlandı.
Tablo 2: Çalma sendromu tedavi yöntemleri, bir yıllık ve 18 aylık patensi
Fistül distalindeki arteriyel sistemde anlamlı darlık görülmeyen hastaların seçildiği çalışmamızda brakiyal ve radiyal arter basınç monitörizasyonu ile kombine edilen PTFE banding yönteminin sonuçları oldukça tatmin edicidir. Bir yıllık greft açıklığının %90, semptomlarda düzelmenin %95 olmasının yanı sıra cerrahi tekniğin basit olması, hastaların diyaliz programlarının aynı yoldan aksamadan sürdürülmesi, semptomlarda hızlı düzelme diğer avantajlardır. Distal vasküler yatakta daha önceki fistül girişimlerine ya da ateroskleroza bağlı ciddi darlıklar var ise distal revaskülarizasyon interval ligasyon (DRIL) işlemi ya da fistül ligasyonu düşünülmelidir.
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