“…Among the known nonmechanical failures are usually: infections and complications in the distal compartment of the system, such as ascites, abdominal pseudocyst, herniations, intestinal obstructions, pleural effusion, in addition to other complications described in the literature, which are less frequently found. [ 4 , 8 ] The most recurrent complications are the infectious and the obstructive causes. [ 5 ] Studies indicate that these can be caused by tissue debris, obstruction in the choroid plexus, presence of clot, infection, distal catheter migration, localized immune response to the tube, distal obstruction, and pseudocyst formation.…”