A retrospective study of factors influencing the survival of modified Meek micrografting in severe burn patients.

Modified Meek micrografting is a common method for treating severe burn patients. This study was to analyze the factors affecting the survival of modified Meek micrografting, thereby improving the survival rate of skin grafts. 83 patients who underwent modified Meek micrografting were analyzed. According to the survival rate of skin graft after-operation, the patients were divided into good skin survival group (GSSG, survival rate ≥ 70%, 47 cases) and poor skin survival group (PSSG, survival rate < 70%, 36 cases). The baseline data, surgical information, perioperative laboratory indicators and prognosis of the patients were statistically analyzed. The univariate analysis and repeated measurement showed the burn severity, Meek skin graft area, duration of anesthesia, the post-operative sepsis shock, the mortality, the neutrophils percentage on the 3rd day after surgery (NEU3) and the growth rate of neutrophils percentage from the 1st to 3rd day after surgery (NEU3-1%) in the GSSG were significantly lower than those in the PSSG, while the perioperative average albumin levels and the perioperative average pre-albumin levels were higher. Receiver operating characteristic curve showed the NEU3 had a good predictive value for the survival of skin slices. Maintain perioperative albumin levels at a high level, control perioperative infection and shorten the operation time as much as possible may improve the survival rate of modified Meek micrografting.