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Recurrence rates after EMR of large sessile serrated polyps
Kevin D Rex1, Krishna C Vemulapalli1, Douglas K Rex1
1Division of Gastroenterology/Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.
Background:
Little is known regarding the recurrence rate after EMR of large (≥20 mm) sessile serrated adenoma/polyps (SSA/Ps).
Objective:
To compare the recurrence rate among SSA/Ps and conventional adenomas in patients referred to a specialty practice for EMR.
Design:
Retrospective cohort study.
Setting:
Academic hospital and a satellite surgery center.
Patients:
A total of 362 consecutive patients referred for resection of large (≥20 mm) polyps in the colorectum.
Interventions:
All EMRs were performed with a submucosal contrast agent. All subjects had a follow-up surveillance examination (inspection and biopsy of the EMR) at our center.
Main Outcome Measurements:
Rates of residual polyp at follow-up examination.
Results:
Residual polyp was identified among 8.7% of SSA/Ps compared with 11.1% for conventional adenomas (P = .8).
Limitations:
Retrospective design, procedures performed by a single experienced endoscopist, low number of serrated lesions.
Conclusions:
The rate of recurrence after EMR of SSA/Ps is similar to the rate after EMR of conventional adenomas.
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