• Inga Arūne Bumblyte, Renata Pakalnyte, Lina Radzeviciene, Egle Sepetauskiene, Egle Gaupsiene, and Jūrate Kavaliauskiene.
• Clinic of Nephrology, Kaunas University of Medicine, Kaunas, Lithuania. nefrolog@kmu.lt
• Medicina (Kaunas). 2003 Jan 1; 39 Suppl 1: 515851-8.

AbstractKidney involvement in diabetes mellitus has negative impact on the outcomes of disease. Strong relationship between progressive diabetic kidney disease and the development of other diabetic complications was found by many investigators. In order to evaluate the dynamics of diabetic nephropathy in type I diabetes mellitus during 6-year period and its relationship with other diabetes mellitus complications and control of glycemia and hypertension, in 2002 we reviewed ambulatory case records of patients, who were followed by endocrinologists and who were investigated by us in 1996. During 6-year period, 5.1% from 156 pts. died and all of them had diabetic nephropathy; 26.9% of pts. moved to general practitioners and never visited endocrinologists again. Only 105 pts. remained under follow-up by endocrinologists. Their mean age 37.6+/-1.3 yrs. Out of all patients, 54% were males and 46% females. Mean diabetes mellitus duration was 19.5+/-0.9 yrs. Control of glycaemia was poor and insufficient in 2/3 of pts. HbA(1C) wasn't checked in 68.9% of pts. Control of arterial hypertension became better, but not sufficiently. During 6-year period persistent proteinuria developed in 12.1% of pts., who had no or transient proteinuria <0.5 g/l in 1996. Persistent proteinuria developed 19.9+/-1.8 yrs. after the diabetes mellitus onset and correlated with hypertension and renal insufficiency. Higher level of proteinuria was associated with worse control of glycemia. Progression of diabetic retinopathy and neuropathy over 6 yrs. were more expressed than in diabetic nephropathy. On average retinopathy developed after 14+/-1.8 yrs. after the diabetes mellitus onset, neuropathy--17.8+/-2.2 yrs., renal failure--21.1+/-2.8 yrs., heart failure--22.9+/-1.9 yrs. and arterial hypertension--12.1+/-1.3 yrs. The prevalence and time of incipient diabetic nephropathy appearance remained unknown because the test for microalbuminuria was not available in the primary health care centres.

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