Exp Clin Endocrinol Diabetes 2014; 122(05): 303-307
DOI: 10.1055/s-0034-1371812
Article
© J. A. Barth Verlag in Georg Thieme Verlag KG Stuttgart · New York

Clinical Characteristics and Long-term Follow-up of Ketosis-prone Diabetes in Thai Patients

T. Yotsapon
1   Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok,Thailand
,
S. Sarat
1   Division of Endocrinology and Metabolism, Department of Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok,Thailand
› Author Affiliations
Further Information

Publication History

received 11 November 2013
first decision 17 February 2014

accepted 26 February 2014

Publication Date:
07 April 2014 (online)

Preview

Abstract

Introduction: Diabetes presenting with ketoacidosis is a heterogeneous disorder. The purpose of this study was to determine whether ketosis-prone diabetes (KPDM) in Thai patients were different from type1 diabetes by assessment of the beta-cell response to a standardized mixed meal and pancreatic autoantibodies.

Material and Methods: 20 patients who were categorized as ketosis-prone diabetes based on the occurrence of unprovoked DKA after the age of 30 years were compared with 12 type1 diabetic patients. The beta-cell function and pancreatic autoantibodies were followed after resolution of DKA every 6 months for 2 years.

Results: Mean (±SD) age at presentation was 38.8±11.5 and 26.7+10.3 years in KPDM and type1 DM, respectively (p<0.05). Median (IQR) fasting plasma C-peptide obtained after resolution of DKA within 2 weeks was 0.90 ng/dl ­(0.20–1.30) in KPDM compared with 0.10 ng/dl (0.10–0.45) in type1 diabetes and median peak stimulated plasma C-peptide was 6.80 ng/dl (0.90–9.80) compared with 0.10 ng/dl (0.10–0.75). Based on Aβ classification, 4 patients were classified as A+β−, 12 patients were classified as A−β+, and 4 patients were classified as A−β−. No patient was classified as A+β+ in this study. At the median time of 31 months follow-up (range from 8–44 months), 11 patients from 12 A−β+ KPDM (92%) could be withdrawn from insulin treatment successfully at median time of 5 months after admission.

Conclusions: Thai KPDM patients had variable clinical course which were different from typical type1 DM. The Aβ classification was proven to be useful predictors for consideration of insulin withdrawal after resolution of DKA.