热刀对伤口愈合的影响。

Effects of thermal knives on wound healing.

作者信息

Sowa D E, Masterson B J, Nealon N, von Fraunhofer J A

出版信息

Obstet Gynecol. 1985 Sep;66(3):436-9.

Abstract

Tissue response to injury caused by the electrosurgical scalpel, the hemostatic Shaw scalpel, the CO2 laser, and a standard steel scalpel have been compared. Subcutaneous incisions in pigs were evaluated histologically at 1, 4, 7, 14, and 22 days postincision. The least damage was produced by the standard steel scalpel at all time periods. Epithelial migration started on day 1 for the standard steel scalpel, on day 4 for the Shaw scalpel, and only on day 7 for the electrosurgical scalpel and laser knives. Lateral thermal necrotic zones were found for all three thermal knives. Tensile testing showed no significant differences in the early postincision tissue strength. By day 14 wounds made with the standard steel scalpel were stronger than those made with the Shaw and electrosurgical scalpel. These findings indicate that thermal injury delays the wound healing process.

摘要

已对组织对电外科手术刀、止血肖氏手术刀、二氧化碳激光以及标准钢手术刀所造成损伤的反应进行了比较。在猪身上做皮下切口，并在切口后1天、4天、7天、14天和22天进行组织学评估。在所有时间段，标准钢手术刀造成的损伤最小。标准钢手术刀在第1天开始上皮迁移，肖氏手术刀在第4天开始，而电外科手术刀和激光刀仅在第7天开始。在所有三种热刀中均发现了侧向热坏死区。拉伸试验表明，切口后早期组织强度无显著差异。到第14天，用标准钢手术刀造成的伤口比用肖氏手术刀和电外科手术刀造成的伤口更强。这些发现表明，热损伤会延迟伤口愈合过程。