PubMed · 4874543
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C Trincão. [March hemoglobinuria].. https://pubmed.ncbi.nlm.nih.gov/4874543/
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BACKGROUND: Screening for microalbuminuria is increasingly advocated as a way to diagnose early renal involvement in diabetes and other diseases. It usually entails the use of a radioimmunoassay that is expensive and not always readily available. OBJECTIVE: To assess the efficacy of three simple and inexpensive tests for ruling out microalbuminuria. DESIGN: Cross-sectional study. SETTING: Outpatient clinics. PATIENTS: 221 patients from primary care clinics and a diabetes clinic. MEASUREMENTS: Random urine specimens were tested for albumin by using Micral-Test immunoassay strips (Boehringer Mannheim, Mannheim, Germany) and for protein by using sulfosalicylic acid testing and impregnated dipsticks (Chemstrips, Boehringer Mannheim). Radioimmunoassay for albumin was used for all specimens as standard for comparison. RESULTS: When less than 20 mg/L was considered the upper limit of normal for albumin concentration, Micral-Test, sulfosalicylic acid testing, and Chemstrips had negative predictive values of 99%, 95%, and 96%, respectively. Seventy-four specimens tested negative on both sulfosalicylic acid and Chemstrips; the negative predictive value of these two tests combined was 99%. CONCLUSIONS: The combination of sulfosalicylic acid testing and Chemistrips was as good as and less expensive than Micral-Test in ruling out microalbuminuria.
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The aim of the study was to compare the diurnal pattern of blood pressure in diabetic patients with normal urinary protein excretion, microalbuminuria and end stage renal failure due to diabetic nephropathy and on continuous ambulatory peritoneál dialysis. An ABPM-oscillometric blood pressure monitor was used. Cholesterol, triglicerides, HDL and LDH1 cholesterole, apolipoprotein A1 and B, endogenous creatinine urinary protein and albumin excretion, beta-2-microglobulin were measured. The mean age and the mean diabetes duration of the 12 normoalbuminuric patients 38.3 and 16.5 years, of the 12 patients treated for renal failure with continuous ambulatory peritoneál dialysis 54.4 and 19.5 years. In the group with end stage renal failure and continuous ambulatory peritoneál dialysis, the mean nocturnal and diurnal systolic and diastolic blood pressure and the average arterial mean pressure was significantly higher than in the normal and microalbuminuric groups. In microalbuminuric and dialysed patients the physiological nocturnal decline of arterial blood pressure was absent. 24 hour blood pressure monitoring may accurately identify the early stage of diabetic nephropathy, and it might be valuable in the correction of antihypertensive treatment from the early to the final stages of diabetic nephropathy.