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Catheterization of Intestinal Loops in Ruminants

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Comparison of Loop Electrosurgical Excision Procedure Using a Ring-Shaped Loop Versus a Right-Angled Triangular Loop.

Seung-Hyuk Shim, Sun Joo Lee, Seung Woo Yang

The Journal of Reproductive Medicine

|July 21, 2018

Summary

Loop electrosurgical excision procedure (LEEP) using a triangular loop for cervical intraepithelial neoplasia (CIN) 2/3 treatment resulted in fewer positive resection margins and less postoperative hemorrhage. This technique offers improved surgical outcomes for CIN 2/3 management.

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Area of Science:

Gynecology
Surgical Oncology
Pathology

Background:

Cervical intraepithelial neoplasia (CIN) 2/3 requires effective treatment to prevent progression to cervical cancer.
Loop electrosurgical excision procedure (LEEP) is a standard treatment for CIN 2/3.
Different LEEP techniques may influence surgical outcomes, including resection margin status and postoperative complications.

Purpose of the Study:

To compare the effectiveness of two LEEP techniques in achieving negative resection margins (RM) and reducing postoperative severe hemorrhage for CIN 2/3 treatment.
To identify independent predictors of positive RM in patients undergoing LEEP for CIN 2/3.

Main Methods:

Retrospective review of 278 patients with CIN 2/3 treated with LEEP between 2005–2014.
Comparison of outcomes between Type A surgery (ring-shaped loop, multiple passes) and Type B surgery (right-angled triangular loop, single pass).
Logistic regression analysis to determine independent risk factors for positive RM.

Main Results:

Type B surgery demonstrated a significantly lower rate of 30-day postoperative hemorrhage (13.8% vs. 26.4%) and a higher rate of negative RM (82.3% vs. 68.9%) compared to Type A.
Multivariate analysis identified Type B surgery as an independent protective factor against positive RM (OR=0.45).
Postoperative diagnosis of CIN3 was an independent risk factor for positive RM (OR=2.53).

Conclusions:

LEEP utilizing a right-angled triangular loop in a single pass is associated with improved RM status and reduced postoperative hemorrhage for CIN 2/3 treatment.
The choice of LEEP technique can significantly impact surgical outcomes and the likelihood of achieving clear margins.