Fluid Management as a Risk Factor for Intra-abdominal Compartment Syndrome in Burn Patients: A Total Body Surface Area-Independent Multicenter Trial Part I.

Fluid management is one of the anticipated risk factors for intra-abdominal compartment syndrome (ACS). Since fluid requirements depend on the burned total body surface area (TBSA), an independent analysis is necessary to adapt resuscitation protocols and prevent this life-threatening complication. A retrospective multicenter study with matched-pair analysis was conducted in four German burn centers, including 38 burn patients with ACS who underwent decompressive laparotomy. Potential risk factors were analyzed, such as resuscitation volume, total fluid intake, mean fluid administration per day, fluid balance, and blood transfusion. The ACS group and control were compared with a two-tailed Mann-Whitney U test (P < .05). The ACS group was split up into an early and late ACS group for statistical subgroup analysis. Total fluid intake, fluid balance, and the total volume of colloids showed no significant difference in the ACS group (mean TBSA 50%) versus control (mean TBSA 49%). The subgroup analysis showed significant higher total resuscitation volume, fluid administration per kilogram body weight, and fluid balance in the first 24 hours in the late-onset ACS group. This study shows a different risk factor profile for early-onset ACS in the first 4 days after trauma and late-onset ACS. Herein, fluid therapy is a fundamental risk factor for late-onset ACS. In early-onset ACS, fluid administration contributes significantly to the development of intra-abdominal hypertension, but other risk factors seem to turn the balance for the development of early-onset ACS in burn patients.