Protein loss across burn wounds.

Area of Science:

• Burn injury research
• Wound healing
• Metabolic response to injury

Background:

• Negative nitrogen balance is a known complication in burn patients.
• Protein loss through burn wounds is a contributing factor, but poorly quantified.
• Understanding protein exudation is vital for effective patient management.

Purpose of the Study:

• To quantify the amount and type of protein lost through burn wounds.
• To compare protein loss in full-thickness versus partial-thickness burns.
• To establish a basis for improved nutritional support in burn care.

Main Methods:

• Studied protein loss from multiple full- and partial-thickness burns in 29 patients.
• Applied occlusive sponge dressings to sampled burn sites for 1 hour.
• Measured total protein, albumin, and globulin in the dressing wash fluid.

Main Results:

• Significant protein losses were measured from burn wounds.
• Greatest losses occurred in the first 3 postburn days: 0.98 mg/cm2/hr (full-thickness) vs. 0.59 mg/cm2/hr (partial-thickness).
• After 3 days, protein loss stabilized around 0.25 mg/cm2/hr.

Conclusions:

• Burn wounds result in substantial protein loss, exceeding previous estimates.
• A formula was developed to estimate daily protein loss based on burn size and body surface area.
• Inadequate nutritional replacement of these losses may contribute to negative nitrogen balance.