Comparison of balloon-occluded retrograde transvenous obliteration (BRTO) using ethanolamine oleate (EO), BRTO using sodium tetradecyl sulfate (STS) foam and vascular plug-assisted retrograde transvenous obliteration (PARTO). BRTO, CARTO, PARTO - Retrograde Transvenous Obliteration. Kim YH, Kim YH, Kim CS, Kang UR, Kim SH, Kim JH. While balloon-assisted retrograde transvenous obliteration (BRTO) has been used for two decades in Asia for the management of gastric variceal bleeding, it is still an emerging therapy elsewhere. Retrograde transvenous obliteration of gastric varices. Hirota S, Matsumoto S, Tomita M, Sako M, Kono M. Coil-assisted retrograde transvenous obliteration (CARTO) for the treatment of portal hypertensive variceal bleeding: preliminary results. Modified BRTO, known as coil-assisted and plug-assisted retrograde transvenous obliteration (CARTO and PARTO, respectively), is receiving increased attention for managing bleeding GVs owing to. Lee EW, Saab S, Gomes AS, Busuttil R, McWilliams J, Durazo F, et al. This article provides an overview of various modified BRTO techniques. “Downgrading” of gastric varices with multiple collateral veins in balloon-occluded retrograde transvenous obliteration. Several modified BRTO techniques have been developed including vascular plug-assisted retrograde transvenous obliteration, coil-assisted retrograde transvenous obliteration, and balloon-occluded antegrade transvenous obliteration. Fukuda T, Hirota S, Sugimoto K, Matsumoto S, Zamora CA, Sugimura K.
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