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Cold snare excision is a safe method for diminutive colorectal polyps
1First Department of Internal Medicine, Hirosaki University School of Medicine, Japan. RUNO-hki@umin.u-tokyo.ac.jp
The Tohoku Journal of Experimental Medicine
|April 29, 1998
Summary
Cold snare excision (CSE) effectively removes small colon polyps. A specialized measuring system (SMS) accurately determines polyp size, guiding safe CSE for polyps 6mm or smaller, minimizing bleeding risks.
Area of Science:
- Gastroenterology
- Endoscopic procedures
- Colorectal surgery
Background:
- Cold snare excision (CSE) is a standard technique for removing diminutive colorectal polyps.
- Accurate polyp sizing is crucial for determining the appropriate resection method and assessing hemostasis.
- The open-biopsy forceps technique (OBFT) may underestimate polyp size compared to other methods.
Purpose of the Study:
- To investigate the correlation between polyp size measured by a specialized measuring system (SMS) and post-excision bleeding time (BTCSE) after CSE.
- To evaluate the accuracy of OBFT in estimating polyp size for CSE.
- To establish an appropriate measuring method for guiding CSE procedures.
Main Methods:
- Eighty patients with single diminutive polyps underwent CSE.
- Polyp size was initially assessed using OBFT and then precisely measured using the SMS.
- Bleeding time of the CSE (BTCSE) was recorded post-excision for each polyp.
Main Results:
- Fifteen percent of polyps initially measured ≤5 mm by OBFT were found to be ≥6 mm by SMS.
- A correlation was observed between SMS measurements and BTCSE for polyps ≤6 mm.
- Polyps ≥7 mm by SMS required prolonged hemostasis (>10 minutes) and additional electrocoagulation.
Conclusions:
- CSE is a safe and effective method for polyps measuring ≤6 mm by SMS.
- The SMS provides a more accurate assessment of polyp size than OBFT, crucial for predicting hemostasis.
- Accurate polyp sizing using SMS is essential for optimizing CSE outcomes and patient safety.