Quantifying the shrinkage of laryngeal laser excisions: a case control study

E. Halliday, Ajith George
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引用次数: 1

Abstract

Abstract Objective Heat from transoral laser microsurgery can cause tissue shrinkage, impacting the surgical margin. This study aimed to compare shrinkage between cold steel and carbon dioxide laser resections of laryngeal lesions. Methods A European Laryngological Society type II resection was performed on 10 mm ‘lesions’ marked on both the true and false folds of fresh-frozen human larynxes; specifically, laser resection was performed on the right side and cold steel resection on the left side. Results Twenty-eight larynxes were included. Tissue shrinkage was significantly higher in laser resection (35–45 per cent) compared to cold steel resection (8–14 per cent) (p < 0.0001). In most cases, there was no significant difference in shrinkage between true and false fold sites. Conclusion This study demonstrates that specimen shrinkage is significantly higher in laser resections. This shrinkage will affect the size of the surgical margin; surgeons and pathologists should be aware of this when considering positive and close margins.
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定量喉激光切除的收缩:一项病例对照研究
目的经口激光显微手术产生的热会引起组织收缩,影响手术切缘。本研究的目的是比较冷钢和二氧化碳激光切除喉部病变的收缩。方法采用欧洲喉学会ⅱ型手术切除新鲜冷冻喉部真襞和假襞上标记的10 mm“病变”;其中,右侧行激光切除,左侧行冷钢切除。结果共纳入28个喉部。与冷钢切除(8 - 14%)相比,激光切除的组织收缩率(35 - 45%)显著高于冷钢切除(8 - 14%)(p < 0.0001)。在大多数情况下,没有显著差异的收缩之间的真实和虚假的折叠位置。结论在激光切除中,标本的收缩率明显增高。这种收缩会影响手术切缘的大小;外科医生和病理学家在考虑阳性和闭合切缘时应该意识到这一点。
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