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Published on: September 12, 2025
Bipolar electrosurgical loop excision procedure for cervical intraepithelial neoplasia
C J Dunton1, K R Brill, K van Hoeven
1*Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, †Department of Pathology and Cell Biology, Division of Cytology, Thomas Jefferson University Hospital, Philadelphia, PA.
Bipolar electrosurgical loop excision is a safe and effective treatment for cervical intraepithelial neoplasia (CIN). This minimally invasive procedure demonstrated good histopathological results with minimal thermal artifact, offering a viable alternative to traditional methods.
Area of Science:
- Gynecology
- Oncology
- Surgical Technology
Background:
- Cervical intraepithelial neoplasia (CIN) requires effective diagnostic and treatment modalities.
- Traditional electrosurgical loop excision methods have established protocols.
- Advancements in electrosurgical technology aim to improve safety and efficacy.
Purpose of the Study:
- To evaluate the safety and efficacy of a bipolar electrosurgical loop excision instrument.
- To assess its utility in the diagnosis and treatment of CIN.
- To compare its outcomes with traditional unipolar methods.
Main Methods:
- Twenty-eight patients with CIN underwent treatment using a 20 x 10-mm bipolar electrosurgical loop device.
- Procedures were performed under colposcopic guidance with a Malis electrosurgical generator.
- Specimens were analyzed for histopathology, tissue depth, and thermal artifact.
Main Results:
- Bipolar loop excision successfully treated various grades of CIN, including CIN3, CIN2, and CIN1.
- The procedure was rapid (mean operating time <15 minutes) with minimal blood loss (<10 ml).
- Histopathological diagnosis was achievable in all specimens, with minimal thermal artifact impacting margin evaluation.
Conclusions:
- Bipolar electrosurgical loop excision is a safe and effective alternative for CIN treatment.
- Thermal artifact did not significantly hinder histopathological diagnosis.
- Further randomized trials are planned to compare bipolar with unipolar electrosurgical loop excision effectiveness.

