N-butyl-cyanoacrylate Glue Versus Micro Particles and the Effect on Inducing Liver Hypertrophy After Portal Vein Embolization- a Retrospective Swedish Multicenter Study

With expansion of indications for major liver surgery, portal vein embolization (PVE) is increasingly used in order to induce hypertrophy of the future liver remnant (FLR). De-spite vide variety of materials available to occlude the portal veins the most commonly used are cyanoacrylate and microparticles/spheres. Earlier studies have failed to show superiority of one over the other in terms of hypertrophy of the FLR while PVE with cy-anoacrylate seems to be less time consuming. Two small previous studies from single centers have shown greater growth by cyanoacrylate compared to particles (1) with 90 included patients and the second study with 34 included patients (2), but larger reviews have failed (3). Cyanoacrylate might give a more robust FLR hypertrophy (4) . The main problem in evaluating previous studies has been the large heterogeneity and the often poorly described study populations.