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Gut Liver. 2012 Oct;6(4):501-4. doi: 10.5009/gnl.2012.6.4.501. Epub 2012 Oct 18.

Short and long-term outcomes of diabetes mellitus in patients with autoimmune pancreatitis after steroid therapy.

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1
Department of Internal Medicine, Tokyo Metropolitan Komagome Hospital, Tokyo, Japan. ; Department of Internal Medicine, Tokyo Metropolitan Bokutoh Hospital, Tokyo, Japan.

Abstract

BACKGROUND/AIMS:

Autoimmune pancreatitis (AIP) is frequently associated with diabetes mellitus (DM). This study evaluated the effect of steroid therapy on the course of DM in AIP.

METHODS:

Glucose tolerance was examined in 69 patients with AIP. DM onset was classified as either a simultaneous onset with AIP or an exacerbation of pre-existing DM. Based on the changes in the HbA1c levels and insulin dose, the responses of DM to steroids were classified as improved, no change, or worsened.

RESULTS:

Thirty (46%) patients were diagnosed as having DM (simultaneous onset, n=17; pre-existing, n=13). Three months after starting the steroid treatment, the DM improved in 13 (54%) of 24 DM patients. The DM improved in 55%, had no change in 36%, and worsened in 9% of the 11 simultaneous onset DM patients, and it improved in 54%, had no change in 31%, and worsened in 15% of the 13 pre-existing DM patients. At approximately 3 years after starting the steroid treatment, the DM improved in 10 (63%) of 16 patients. The pancreatic exocrine function improved in parallel with the changes in the DM in seven patients.

CONCLUSIONS:

Because approximately 60% of DM associated with AIP is responsive to steroids in the short- and long-terms, marked DM associated with AIP appears to be an indication for steroid therapy.

KEYWORDS:

Autoimmune pancreatitis; Diabetes mellitus; Steroids

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