In vitro pressure manifolding distribution evaluation of ABThera? Active Abdominal Therapy System, V.A.C.? Abdominal Dressing System, and Barker’s vacuum packing technique conducted under dynamic conditions:

摘要

Objectives:Temporary abdominal closure methods allow for management of open abdomens where immediate primary closure is not possible and/or where repeat abdominal entries are necessary. We assessed pressure mapping and fluid extraction efficiency of three open abdomen dressing systems: ABThera? Active Abdominal Therapy System, V.A.C.? Abdominal Dressing System, and Barker’s vacuum packing technique.Methods:An in vitro test model was designed to simulate physical conditions present in an open abdomen. The model consisted of a rigid rest platform with elevated central region and a flexible outer layer with centrally located incision. Constant ?125?mmHg negative pressure was applied according to the type of system, under simulated dynamic conditions, using albumin-based solution with a viscosity of 14?cP. Data were collected by pressure sensors located circumferentially into three concentric zones: Zone 1 (closest to negative pressure source), Zone 2 (immediately outside of manifolding material edge), and Zo...