Solomon J R
Prog Pediatr Surg. 1981;14:133-49.
Early excision and grafting of burns with the advent of infection control, has become a most important part of any successful therapy in burn management. By this technique, an open wound is primarily closed, and thus circumvents the possibility of infection. There is less discomfort, more rapid restoration of function, quicker discharge from hospital and earlier rehabilitation. Metabolic needs are lessened and with less scar, the cosmetic result is improved. Excision is made between the third and fifth day postburn if possible, but more delay may be necessary to determine which burns are superficial and able to spontaneously heal. No area greater than 10% of body surface area is excised and grafted at one operative session and for large burns staged excisions are necessary. A limitation of 1 1/2 hours on the operation is made so as to control shock and hypothermia and to assure a quick recovery with early re-establishment of nutrition. Ketamine is the common anaesthetic employed and viable fat is preferred as the surface on which to graft. Tangential excision is a complementary form of early excision grafting to a specific depth, and may be used alone or in conjunction with other techniques. It is of value in selected burns of the deep partial skin loss variety, especially scalds, which predominate in children. Several slices of necrotic skin are taken until a punctate bleeding surface is reached in the deep dermis and a thin to moderate thickness allograft is immediately applied. The conservation of the deep dermis limits the area to be grafted, with the likelihood of less scar formation and a resultant graft of improved texture.
随着感染控制技术的出现,烧伤的早期切除与植皮已成为烧伤治疗中任何成功疗法的最重要组成部分。通过这种技术,开放性伤口得以一期闭合,从而避免了感染的可能性。患者不适感减轻,功能恢复更快,住院时间缩短,康复更早。代谢需求降低,瘢痕减少,美容效果得到改善。若有可能,在烧伤后第三天至第五天进行切除,但可能需要更多时间来确定哪些烧伤为浅度烧伤且能够自行愈合。一次手术切除并植皮的体表面积不超过10%,对于大面积烧伤则需要分期切除。手术时间限制在1个半小时以内,以控制休克和体温过低,并确保早期恢复营养,实现快速康复。氯胺酮是常用的麻醉剂,首选有活力的脂肪作为植皮表面。削痂术是早期切除植皮术针对特定深度的一种补充形式,可单独使用或与其他技术联合使用。它对选定的深Ⅱ度烧伤,尤其是儿童中占主导的烫伤有价值。切除数层坏死皮肤,直至深真皮层达到点状出血表面,然后立即应用薄至中等厚度的同种异体皮。保留深真皮层限制了植皮面积,减少了瘢痕形成的可能性,从而使移植皮肤的质地得到改善。