ABSTRACT
Objective:To explore the difference in the therapeutic effect of stamp skin and meek skin on wound repair in patients with extensive burns.Methods:A total of 81 patients with extensive burn from March 2016 to February 2018 in 73th Army Hospital of PLA were selected and divided into group A (stamp skin grafting, 35 cases) and group B (meek skin grafting, 46 cases) according to the choice of wound repair methods before operation. The survival and healing conditions, treatment costs, mortality and rehabilitation of the two groups were compared.Results:There was no significant difference in the survival rate, wound healing rate and mortality between group A and group B (82.86% vs 86.96%, 5.71% vs 8.70%, P>0.05). The survival rate of skin graft in group A was higher than that in group B, and the wound healing time and treatment cost of 1% total body surface area (TBSA) in group A were lower than those in group B [(76.3±5.1)% vs (67.9±6.2)%, (41.5±4.9)d vs (45.8±5.1)d, (1 215.6±235.1)yuan vs (7 689.5±681.0)yuan, P<0.05]. The excellent and good rate of rehabilitation in group A was significantly lower than that in group B (68.57% vs 86.96%, P<0.05). Conclusions:The application of the stamp skin in the repair of wounds in large-area burn patients has a higher flap survival rate than meek skin repair, which can shorten the healing time of the flap and reduce the treatment cost, but the rehabilitation effect is poor.
ABSTRACT
Objective To study the injury percentage of fat cells from human bodies by three methods and four suctioned negative pressures. Methods Fat tissue was removed from lower abdomen by excision, aspiration and suction. A pair of sharp scissors was used to cut excisied adipose tissue into 3mm diameter fat particles. A 4 mm diameter pipet and four negative pressures (-25 kPa, -50 kPa, -76 kPa and -101 kPa) were used to suction fat tissue. The samples were fixed in 10 % buffered formalin, stained with hematoxylin eosin and Wilder's silver methods. The fat cells were observed under light microscope. Results The injury percentage of fat cells removed by three methods were (8.6? 1.8) %, (15.7?2.4) % and (38.4?4.2) % respectively;all of them had significant differences among them. The injury percents of fat cells suctioned under-25 kPa,-50 kPa, -76 kPa and -101 kPa were (26.3?2.5) %, (27.6? 2.6) %, (36.8?3.5) % and (68.9?7.4) % respectively. There were no significant differences between the first two but there were among other groups. Conclusions The injury extent of fat cells has significant differences among 3 methods, in which the excision is the least and the suction is the most serious. The injury extent of fat cells has no significant differences when the pressure is lower than -25 kPa. But when the pressure is higher than -50 kPa, the higher the pressure, the more serious the injury extent.