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Title: [Effects of early debridement and conservative eschar removal followed by wound coverage with acellular dermal matrix in the treatment of children with deep burns].
Author: Liang Y, Shi W, Shao Y, Liu XZ, Gong HM, Cao GH, Gao C, Xin NJ, Song GD.
Journal: Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi; 2024 Apr 20; 40(4):348-357. PubMed ID: 38664029.
Abstract:
Objective: To explore the effects of early debridement and conservative eschar removal followed by wound coverage with acellular dermal matrix (ADM), i.e., early surgery, in the treatment of children with deep burns. Methods: This study was a retrospective cohort study. From January 2017 to December 2022, 278 deep burned hospitalized children aged 1-7 years who met the inclusion criteria were admitted to Central Hospital Affiliated to Shandong First Medical University. According to the differences in treatment processes, 134 children who underwent early surgery+routine dressing change were enrolled in eschar removal+dressing change group (77 males and 57 females, aged 1 (1, 2) years), and 144 children who underwent only routine dressing change were enrolled in dressing change alone group (90 males and 54 females, aged 1 (1, 2) years). Fifty-one children without full-thickness burns in eschar removal+dressing change group were enrolled in eschar removal+dressing change group 1 (26 males and 25 females, aged 1 (1, 2) years), and 57 cases of the 83 children with full-thickness burns who did not undergo autologous skin grafting at the same time of early surgery (namely early skin grafting) in eschar removal+dressing change group were included in eschar removal+dressing change group 2 (37 males and 20 females, aged 1 (1, 2) years). Seventy-six children without full-thickness burns in dressing change alone group were included in dressing change alone group 1 (51 males and 25 females, aged 1 (1, 3) years), and 68 children with full-thickness burns in dressing change alone group were included in dressing change alone group 2 (39 males and 29 females, aged 1 (1, 2) years). For deep partial-thickness burn wounds and small full-thickness burn wounds in eschar removal+dressing change group, the eschar removal was performed on the basis of retaining a thin layer of denatured dermis so as to preserve the healthy tissue of the wound base, and ADM was applied to all wounds externally after eschar removal. For larger full-thickness burn wounds in this group, especially those located in the functional part of joints, eschar removal to the plane layer of viable tissue and early autologous skin grafting was needed. When the superficial wounds of children healed or tended to heal, the residual wounds were evaluated, and elective autologous skin grafting was performed if it was difficult to heal within 14 days. The healing time, intervention healing time, times of operation/dressing change, and times of intervention operation/dressing change in children with deep partial-thickness burn wounds of children in eschar removal+dressing change group, dressing change alone group, eschar removal+dressing change group 1, and dressing change alone group 1 were recorded. At the last follow-up (follow-up period was set to 7-12 months), the modified Vancouver scar scale (mVSS) scores of the most severe area of scar hyperplasia of healed deep partial-thickness burn wounds of 54 children in eschar removal+dressing change group and 48 children in dressing change alone group were recorded. The healing time and times of operation/dressing change of all burn wounds of children in eschar removal+dressing change group and dressing change alone group, and the healing time and times of operation/dressing change of full-thickness burn wounds of children in eschar removal+dressing change group 2 and dressing change alone group 2 were recorded. The incidences of wound infection, sepsis, fever, and fever after 5 days of burns in children of eschar removal+dressing change group and dressing change alone group during wound healing. Results: Compared with those in dressing change alone group, the healing time and intervention healing time were significantly shortened, and the times of operation/dressing change and times of intervention operation/dressing change were significantly reduced in children with deep partial-thickness burn wounds in eschar removal+dressing change group (with Z values of -11.00, -11.33, -12.64, and -11.65, respectively, P<0.05). Compared with those in dressing change alone group 1, the healing time and intervention healing time were significantly shortened, and the times of operation/dressing change and times of intervention operation/dressing change were significantly reduced in children with deep partial-thickness burn wounds in eschar removal+dressing change group 1 (with Z values of 6.57, 6.46, 8.04, and 6.57, respectively, P<0.05). At the last follow-up, the mVSS score of the most severe scar hyperplasia area of healed deep partial-thickness burn wounds of 54 children in eschar removal+dressing change group was 4.00 (3.00,5.00), which was significantly lower than 6.50 (5.00,7.00) of 48 children in dressing change alone group (Z =-4.67, P<0.05).Compared with those in dressing change alone group, the healing time was significantly shortened, and times of operation/dressing change was significantly reduced in all burn wounds in eschar removal+dressing change group (with Z values of -5.20 and -6.34, respectively, P<0.05). Compared with those in dressing change alone group 2, the healing time was significantly shortened, and times of operation/dressing change was significantly reduced in full-thickness burn wounds in eschar removal+dressing change group 2 (with Z values of -5.22 and -5.73, respectively, P<0.05). During wound healing, the probabilities of fever and fever after 5 days of burns in children of eschar removal+dressing change group were significantly lower than those in dressing change alone group (with χ² values of 4.13 and 3.91, respectively, P<0.05); only 1 child in dressing change alone group developed sepsis, and there was no statistically significant difference in the wound infection rate of children in the two groups (P>0.05). Conclusions: For children with deep burns, early surgery, and early skin grafting or elective autologous skin grafting as needed, have better short-term and long-term effects than those without early surgery. 目的： 探讨早期清创保守去痂后外覆脱细胞真皮基质（ADM）即早期手术治疗小儿深度烧伤的效果。 方法： 该研究为回顾性队列研究。2017年1月—2022年12月，山东第一医科大学附属中心医院收治符合入选标准的1~7岁住院深度烧伤患儿278例。根据治疗过程不同，将行早期手术+常规换药治疗的134例患儿纳入去痂+换药组［男77例、女57例，年龄1（1，2）岁］，将仅行常规换药治疗的144例患儿纳入单纯换药组［男90例、女54例，年龄1（1，2）岁］。将去痂+换药组中无Ⅲ度烧伤的51例患儿纳入去痂+换药1组［男26例、女25例，年龄1（1，2）岁］，将该组存在Ⅲ度烧伤的83例患儿中未在早期手术的同期行自体皮移植（称为早期植皮）的57例患儿纳入去痂+换药2组［男37例、女20例，年龄1（1，2）岁］。将单纯换药组中无Ⅲ度烧伤的76例患儿纳入单纯换药1组［男51例、女25例，年龄1（1，3）岁］，将该组存在Ⅲ度烧伤的68例患儿纳入单纯换药2组［男39例、女29例，年龄1（1，2）岁］。针对去痂+换药组深Ⅱ度和较小面积Ⅲ度烧伤创面，以保留薄层变性真皮从而保全创基健康组织为基准进行去痂，去痂后创面均外敷ADM；针对该组较大面积Ⅲ度烧伤创面，尤其是位于关节功能部位的创面，则去痂至有生机组织平面并行早期植皮。当患儿较浅创面已愈合或趋于愈合后评估残余创面情况，若其难以在14 d内治愈则行择期自体皮移植。统计去痂+换药组、单纯换药组以及去痂+换药1组、单纯换药1组患儿深Ⅱ度烧伤创面的愈合时间、干预愈合时间、手术/换药次数、干预手术/换药次数。末次随访（随访期设为7~12个月）时，统计去痂+换药组54例、单纯换药组48例患儿深Ⅱ度烧伤愈合创面瘢痕增生最严重区域的改良温哥华瘢痕量表（mVSS）评分。统计去痂+换药组、单纯换药组患儿全部烧伤创面愈合时间及手术/换药次数，以及去痂+换药2组、单纯换药2组患儿Ⅲ度烧伤创面愈合时间及手术/换药次数。统计去痂+换药组、单纯换药组患儿创面愈合期间创面感染、脓毒症、发热及烧伤5 d后发热发生情况。 结果： 与单纯换药组相比，去痂+换药组患儿深Ⅱ度烧伤创面的愈合时间、干预愈合时间均明显缩短，手术/换药次数和干预手术/换药次数均明显减少（Z值分别为-11.00、-11.33、-12.64、-11.65，P<0.05）。与单纯换药1组相比，去痂+换药1组患儿深Ⅱ度烧伤创面的愈合时间、干预愈合时间均明显缩短，手术/换药次数和干预手术/换药次数均明显减少（Z值分别为6.57、6.46、8.04、6.57，P<0.05）。末次随访时，去痂+换药组54例患儿深Ⅱ度烧伤愈合创面瘢痕增生最严重区域的mVSS评分为4.00（3.00，5.00）分，明显低于单纯换药组48例患儿的6.50（5.00，7.00）分（Z=-4.67，P<0.05）。与单纯换药组相比，去痂+换药组患儿全部烧伤创面愈合时间明显缩短，手术/换药次数明显减少（Z值分别为-5.20、-6.34，P值均<0.05）；与单纯换药2组相比，去痂+换药2组患儿Ⅲ度烧伤创面愈合时间明显缩短，手术/换药次数明显减少（Z值分别为-5.22、-5.73，P值均<0.05）。创面愈合期间，去痂+换药组患儿发热、烧伤5 d后发热概率均明显低于单纯换药组（χ²值分别为4.13、3.91，P<0.05），仅单纯换药组1例患儿发生脓毒症，2组患儿创面感染发生率比较的差异无统计学意义（P>0.05）。 结论： 对小儿深度烧伤创面行早期手术并根据需要行早期植皮或择期自体皮移植术，其近远期效果优于不行早期手术。.

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