Clinical Endoscopy

Choong-Kyun Noh

2 Articles

Refractory duodenal ulcer caused by portal stent graft exposure: Gil Ho Lee, Choong-Kyun Noh, Kee Myung Lee; Clin Endosc 2025;58(2):320-321. Published online January 14, 2025; DOI: https://doi.org/10.5946/ce.2024.232

Long-term outcome of grade 1 rectal neuroendocrine tumor ≤1 cm after incomplete endoscopic resection: Jong Sun Park, Hye Lynn Jeon, Bumhee Park, Jong Hoon Park, Gil Ho Lee, Sun Gyo Lim, Sung Jae Shin, Kee Myung Lee, Choong-Kyun Noh; Received February 7, 2025 Accepted March 15, 2025 Published online April 17, 2025; DOI: https://doi.org/10.5946/ce.2025.043

Abstract PubReader ePub: Background
/Aims: Surveillance strategies for small grade 1 rectal neuroendocrine tumors (G1 rNETs) after incomplete endoscopic resection (ER) remain controversial. We evaluated the long-term outcomes of patients with G1 rNET 1 cm after ER who did and did not undergo complete resection.
Methods
We retrospectively evaluated 441 patients with G1 rNETs measuring ≤1 cm after ER between 2011 and 2022. Patients were divided into complete and incomplete resection groups according to histopathological evaluation. Logistic regression analysis identified the risk factors for incomplete resection after ER.
Results
The mean follow-up intervals (standard deviation) were 38.6 (26.9) and 45.7 (29.1) months in all patients and the incomplete resection group, respectively. No recurrences were observed during the follow-up period. The mean lesion size was 5.5 (1.8) mm and the complete resection rate was 80.5% (n=355). In the logistic regression analysis, lesion size 5.1 to 10 mm (odds ratio [OR], 2.3; 95% confidence interval [CI], 1.245–4.203; p=0.008), multiple lesions (OR, 8.3; 95% CI, 1.247–54.774; p=0.029), and retroflexion view during the procedure (OR, 4.0; 95% CI, 1.668–9.615; p=0.002) were independent risk factors for incomplete resection.
Conclusions
The prognosis of G1 rNET 1 cm after ER was very good, regardless of the histopathological results.

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