KMID : 1128320120100010026
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Electrolytes & Blood Pressure 2012 Volume.10 No. 1 p.26 ~ p.30
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Polyuria with the Concurrent manifestation of Central Diabetes Insipidus (CDI) & Type 2 Diabetes Mellitus (DM)
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Shin Hyun-Jong
Kim Jae-Ha Yi Joo-Hark Han Sang-Woong Kim Ho-Jung
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Abstract
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We report a rare case of the concurrent manifestation of central diabetes insipidus (CDI) and type 2 diabetes mellitus (DM). A 56 year-old man was diagnosed as a type 2 DM on the basis of hyperglycemia with polyuria and polydipsia at a local clinic two months ago and started an oral hypoglycemic medication, but resulted in no symptomatic improvement at all. Upon admission to the university hospital, the patient`s initial fasting blood sugar level was 140mg/dL, and he showed polydipsic and polyuric conditions more than 8 L urine/day. Despite the hyperglycemia controlled with metformin and diet, his symptoms persisted. Further investigations including water deprivation test confirmed the coexisting CDI of unknown origin, and the patient`s symptoms including an intense thirst were markedly improved by desmopressin nasal spray (10 ¥ìg/day). The possibility of a common origin of CDI and type 2 DM is raised in a review of the few relevant adult cases in the literature.
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KEYWORD
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Polyuria, Central diabetes insipidus, Type 2 diabetes mellitus, Water deprivation test
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