Association of nephropathy and retinopathy, blood pressure, age in newly diagnosed type 2 diabetes mellitus.
In this study, we investigated the prevalence of chronic complications, including nephropathy and retinopathy, in patients newly diagnosed as type 2 diabetes mellitus. All hyperglycemic subjects were recruited into our study when they visited the outpatient department at Kaohsiung Medical University Hospital over a one-year period. These subjects had fasting plasma glucose higher than 140 mg/dl, or plasma glucose higher than 200 mg/dl in the 2nd hour during an oral glucose tolerance test. Among 148 patients registered as newly diagnosed type 2 diabetes mellitus, 18.2% of the patients had nephropathy, noted by measuring their urine albumin excretion rate and daily protein loss, and 25.5% had retinopathy, noted by fundoscope and fluorescent angiography. The age of overt proteinuric patients (41.5 +/- 3.4 yrs) was significantly younger than those without nephropathy (51.8 +/- 1.0 yrs). Systolic and diastolic blood pressure was significantly higher in patients with microalbuminuria (142.4 +/- 6.0/88.8 +/- 2.6 mmHg) and overt proteinuria (153.8 +/- 13.6/96.8 +/- 9.5 mmHg) than normoalbuminuric patients (128.3 +/- 2.3/81.9 +/- 1.1 mmHg). There was no significant difference in cholesterol, triglyceride, HbA1C, sex or body mass index among normoalbuminric, microalbuminuric, or overt proteinuric patients. The severity of retinopathy was parallel with the severity of nephropathy. Based on our results, chronic diabetic complications, including nephropathy and retinopathy, may occur even when diabetes is newly diagnosed. It is necessary to look for complications, especially in newly documented diabetic patients who are young and hypertensive.
Tzeng
T F
TF
Division of Endocrinology and Metabolism, Kaohsiung Medical University, No. 100, Shih-Chuan 1st Rd., Kaohsiung 80713, Taiwan.
Hsiao
P J
PJ
Hsieh
M C
MC
Shin
S J
SJ
D000367:Age Factors; D003924:Diabetes Mellitus, Type 2 / Q000150:complications*; D003928:Diabetic Nephropathies / Q000453:epidemiology*; D003930:Diabetic Retinopathy / Q000453:epidemiology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence