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11 results on '"Ko H.M."'

2. FP12.01 PD-L1 Assessment in Cytology is Comparable to Histology in Predicting Treatment Response to Checkpoint Inhibitors in NSCLC

Author

Lau, S., primary, Rabindranath, M., additional, Weiss, J., additional, Li, J., additional, Nirmalakumar, S., additional, Ruff, H., additional, Boerner, S., additional, Tong, L.C., additional, Tsao, M., additional, Pal, P., additional, Cabanero, M., additional, Hsu, Y.H., additional, Fung, A., additional, Sacher, A., additional, Shepherd, F.A., additional, Liu, G., additional, Bradbury, P., additional, Yasufuku, K., additional, Czarnecka-Kujawa, K., additional, Ko, H.M., additional, Leighl, N., additional, and Schwock, J., additional

Published
2021
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5. Osteoprotegerin Expressed by Osteoclasts

Author

Kang, J.H., primary, Ko, H.M., additional, Moon, J.S., additional, Yoo, H.I., additional, Jung, J.Y., additional, Kim, M.S., additional, Koh, J.T., additional, Kim, W.J., additional, and Kim, S.H., additional

Published
2014
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11. Baseline Histological Findings Do Not Predict the Risk of Subsequent Extension in Patients with Limited Ulcerative Colitis

Author

Eleonora Scaioli, Aryeh Stock, Huaibin Mabel Ko, Elisa Tiratterra, Andrea Belluzzi, Antonietta D'Errico, Ryan C. Ungaro, Paolo Gionchetti, Jean-Frederic Colombel, Giulia Roda, Yansheng Hao, Russell B. McBride, Clara Yzet, Noam Harpaz, Hao Y., Yzet C., McBride R.B., Stock A., Tiratterra E., D'Errico A., Belluzzi A., Scaioli E., Gionchetti P., Roda G., Ungaro R., Colombel J.-F., Harpaz N., and Ko H.M.

Subjects
Pancolitis, medicine.medical_specialty, Physiology, Biopsy, Disease, Gastroenterology, 03 medical and health sciences, 0302 clinical medicine, Extension, Internal medicine, medicine, Humans, Intestinal Mucosa, Inflammation, medicine.diagnostic_test, business.industry, Colonoscopy, Hepatology, medicine.disease, Ulcerative colitis, Histological Index, 030220 oncology & carcinogenesis, Cohort, Population study, Colitis, Ulcerative, Female, 030211 gastroenterology & hepatology, Age of onset, medicine.symptom, business
Abstract

Background: Among patients with limited ulcerative colitis (UC), 30% ultimately extend to pancolitis and are at increased risk of adverse clinical outcomes. Risk of endoscopic extension has been found to correlate with clinical features such as early age of onset. Aims: We sought to determine whether histologic features correlate with disease extension. Methods: The study population consisted of 40 patients with UC from two large academic centers diagnosed between 2006 and 2017. Eligible cases had a diagnosis of endoscopically limited UC (Montreal E1 or E2) at baseline and ≥ 2 subsequent endoscopic examinations with biopsies. Severity of inflammation was scored using both the Mount Sinai Activity Index and Nancy Histological Index. Results: Patients were divided into two cohorts: those who progressed to pancolitis (Montreal E3) were defined as “Extenders” (n = 21), whereas “Non-extenders” (n = 19) were cases without progression in the follow-up period. The median follow-up time was 58.4months. The histologic scores in the endoscopically involved mucosa of the index biopsies were not associated with subsequent extension of disease, overall. However, among extender cohort, the index histology scores correlated with biopsy scores at extension (r = 0.455, P = 0.044) and index severity was associated with a shorter time to extension (r = − 0.611, P = 0.003). Furthermore, female patients had a shorter time to extension (P = 0.013). Conclusions: Histological severity of limited UC is not an independent predictor of extension in UC. However, among patients who subsequently extend, severe inflammation at baseline correlates with shorter progression time and severe inflammation when extension occurs. Patients with limited UC but severe histologic inflammation may warrant more frequent endoscopic surveillance.

Published
2021

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