Related Experiment Video
Updated: Feb 13, 2026

The Colon-26 Carcinoma Tumor-bearing Mouse as a Model for the Study of Cancer Cachexia
Published on: November 30, 2016
Hysteroscopic polypectomy: a comparison between 22 Fr and 26 Fr resectoscopes under paracervical block anesthesia, a
Cristina Remondi1, Francesco Sesti1, Giuseppe Sorrenti1
1a Section of Gynecology and Obstetrics, Academic Department of Biomedicine and Prevention, Clinical Department of Surgery , University of Rome Tor Vergata , Rome , Italy.
The 22-Fr unipolar resectoscope significantly reduces cervical dilatation and operative times for endometrial polyps compared to the 26-Fr model. This smaller instrument also leads to less pain and fewer analgesic requirements post-procedure.
Area of Science:
- Gynecology
- Minimally Invasive Surgery
- Surgical Instrumentation
Background:
- Endometrial polyps are common gynecologic conditions often treated with hysteroscopic resection.
- Traditional resectoscopes can require significant cervical dilatation, potentially increasing patient discomfort and operative time.
- Paracervical block anesthesia offers an alternative to general anesthesia for hysteroscopic procedures.
Purpose of the Study:
- To compare the efficacy and safety of a 22-Fr unipolar resectoscope versus a 26-Fr unipolar resectoscope for endometrial polypectomy.
- To evaluate operative times, patient-reported pain, and analgesic requirements under paracervical block anesthesia.
Main Methods:
- A randomized trial involving 70 patients with endometrial polyps (<3 cm) was conducted.
- Patients were assigned to either the 22-Fr (Group A) or 26-Fr (Group B) unipolar resectoscope group.
- Primary endpoints included cervical dilatation and resection time; secondary endpoints assessed pain, anesthesia efficacy, and patient satisfaction.
Main Results:
- Mean cervical dilatation time was significantly shorter with the 22-Fr resectoscope (2 min vs. 5 min, p=0.001).
- Mean operative time was also reduced with the 22-Fr resectoscope (4 min vs. 7 min, p=0.001).
- Postoperative pain and need for analgesics were significantly lower in the 22-Fr group.
Conclusions:
- The 22-Fr unipolar resectoscope is advantageous for endometrial polypectomy (<3 cm) due to shorter operative times and reduced patient discomfort.
- Paracervical block anesthesia is a safe and effective option for selected patients undergoing hysteroscopic procedures.
- The smaller resectoscope size facilitates easier procedure and better patient outcomes.
More Related Videos
03:01Author Spotlight: A Reproductive Hysteroscopy Approach for Complete Endometrial Polyp Removal and Enhanced Endometrial Receptivity
Published on: August 2, 2024
08:53Randomized, Triple-Blind, and Parallel-Controlled Trial of Transcranial Direct Current Stimulation for Cognitive Rehabilitation after Stroke
Published on: June 6, 2025
Related Concept Videos
Bioequivalence Experimental Study Designs: Completely Randomized and Randomized Block Designs
Local Anesthetics: Clinical Application as Surface, Infiltration, and Conduction Block Anesthesia
Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
The Sense of Self: Reflected Self-Appraisal and Social Comparison
General Anesthesia: Overview
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
Stages of General Anesthesia