Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Republic of Korea.
Int J Gynecol Cancer. 2012 Sep;22(7):1214-9. doi: 10.1097/IGC.0b013e31825fb63b.
To define a subset of patients with early-stage cervical cancer at low risk for parametrial invasion through pathologic parameters of loop electrosurgical excision procedure (LEEP).
A retrospective analysis of data from 131 patients who underwent LEEP before radical hysterectomy or radical trachelectomy for stage IA2 to IB1 cervical cancer was performed. Subgroup analysis was performed to define a group of patients at the lowest risk for parametrial invasion based on LEEP findings.
Overall, 7 (5.3%) of 131 patients showed parametrial involvement, all of whom had residual tumors in hysterectomy specimens. Risk factors for residual disease included a tumor width greater than 30 mm and a positive endocervical or deep resection margin. A subgroup analysis demonstrated that LEEP parameters, including a depth of invasion of 5 mm or less and a negative endocervical resection margin, were able to define the subgroup of patients at low risk for parametrial invasion. In 24 patients (18.3%) who met these criteria, there was no evidence of parametrial spread as well as nodal metastasis.
A subgroup of patients with early-stage cervical cancer selected by the 2 LEEP variables, depth of invasion of 5 mm or less and a negative endocervical resection margin, demonstrated no risk for parametrial invasion.
通过利普电切术(LEEP)的病理参数,确定早期宫颈癌中低风险发生宫旁侵犯的患者亚组。
对 131 例因 IA2 期至 IB1 期宫颈癌行根治性子宫切除术或根治性宫颈切除术而行 LEEP 术前的患者进行回顾性数据分析。进行亚组分析,以基于 LEEP 结果确定一组发生宫旁侵犯风险最低的患者。
总体而言,131 例患者中有 7 例(5.3%)发生宫旁侵犯,所有患者在子宫切除标本中均有残留肿瘤。残留疾病的危险因素包括肿瘤宽度大于 30 毫米和宫颈内或深层切除缘阳性。亚组分析表明,LEEP 参数,包括浸润深度为 5 毫米或更浅且宫颈内切除缘阴性,能够确定发生宫旁侵犯风险低的患者亚组。在符合这些标准的 24 例患者(18.3%)中,没有宫旁扩散和淋巴结转移的证据。
通过 LEEP 的 2 个变量,即浸润深度为 5 毫米或更浅和宫颈内切除缘阴性,选择的早期宫颈癌患者亚组没有发生宫旁侵犯的风险。