Tomographic Measurement of Gutters and Analysis of the Conformability of Stent Grafts in the Octopus Technique for Endovascular Thoracoabdominal Aneurysm Repair

Use of the Octopus Endograft Technique to Reconstruct Renovisceral Arteries Arising From the False Lumen of a Rapidly Expanding Type B Aortic Dissection After Endovascular Repair

“…The other key procedural aims were to maintain the patency of the octopus endografts in the limb and diminish the gutters. First, according to a previous study that suggested using an ~1.5-fold outside-to-inside prosthesis diameter, 14 the approximate diameter of outside prosthesis for the present case was calculated as 16 mm because the diameters of the octopus endografts were 10, 10, and 12 mm. Second, the kissing balloon technique was used to simultaneously postdilate the octopus endografts in the limb to diminish the gutters.…”

Optimization schemes for endovascular repair with parallel technique based on hemodynamic analyses

“…One of the most important advantages of the parallel endograft octopus technique is that individual customization is not necessary . Thus, in clinical operations, octopus grafts are often constructed based on available device, and more importantly, selection of length and diameter of the SGs is possible.…”

“…A few suggestions on wise treatment plan have been proposed. Rafael and colleagues proposed a preferable combination of Viabahn stent sizes to be used in the octopus technique based on computed tomography (CT) measurement . Mestres et al established in vitro analysis to reveal the hemodynamic conditions for parallel stenting .…”

Combination of Octopus and Periscope Techniques for the Management of Visceral Branches From Type V Thoracoabdominal Aortic Aneurysm: A Case Report

“…Such customization can require 4 to 6 weeks to manufacture, rendering the procedure unsuitable for the current acute case. The octopus technique 7 is an off-label and off-the-shelf strategy developed for the treatment of some selected and specific cases that cannot be treated by customized branched devices. The basic idea of this strategy is to maintain the blood flow to the CA, SMA, and the bilateral renal arteries using parallel-oriented stent grafts (Viabahn) without any modification of the devices.…”

“…Kasirajan 9 used the parallel grafts in a 68-year-old female patient, and Silveira et al 10 described the technique and mentioned its use in some cases. Franklin et al 7 evaluated the gutters among Viabahns of the octopus and described some preferable combinations of Viabahn sizes in order to minimize gutter leaks and theorized that postballooning may impair the conformability and juxtaposition of the 3 stents with each other. In the current case, the patient was at a prohibitive risk of open surgery, and this endovascular technique was deemed to be the best method to treat the type V TAAA.…”