To study the feasibility of creating a radiocephalic hemodialysis fistula in elderly and diabetic patients, we prospectively studied 176 patients undergoing the first permanent vascular access creation and followed the outcome of fistula until primary failure or success was assessed. Color duplex ultrasonography was used to measure the blood flow rate. Fistula blood flow rate was significantly smaller in elderly patients, however, it was >400 ml/min in over 78% of the elderly patients with successful fistulas. There was no difference in fistula blood flow rate between nondiabetics and diabetics. Dialysis adequacy (Kt/V) via fistula was the same between age groups and between diabetes mellitus status. Old age or diabetes per se did not significantly predispose a new fistula to primary failure, but concurrent old age and diabetes markedly increase the risk. In conclusion, a good primary outcome of newly created radiocephalic fistula and adequate dialysis via fistula were demonstrated for elderly and diabetic patients. However, the longevity of fistula in elderly and diabetic patients needs further study.
PurposeDiabetes mellitus (DM) is the most common cause of end-stage renal disease and is an important risk factor for morbidity and mortality after dialysis. However, glycemic control among such patients is difficult to assess. The present study examined glycemic control parameters and observed glucose variation after refilling different kinds of fresh dialysate in peritoneal dialysis (PD) patients.MethodsA total of 25 DM PD patients were recruited, and continuous glucose monitoring system (CGMS) was applied to measure interstitial fluid (ISF) glucose levels at 5-min intervals for 3 days. Patients filled out diet and PD fluid exchange diaries. The records measured with CGMS were analyzed and correlated with other glycemic control parameters such as fructosamine, albumin-corrected fructosamine (AlbF), glycosylated hemoglobin (HbA1c), and glycated albumin levels.ResultsThere were significant correlations between mean ISF glucose and fructosamine (r = 0.45, P<0.05), AlbF (r = 0.54, P<0.01), and HbA1c (r = 0.51, P<0.01). The ISF glucose levels in glucose-containing dialysate increased from approximately 7–8 mg/dL within 1 hour of exchange in contrast to icodextrin dialysate which kept ISF glucose levels unchanged.ConclusionHbA1c and AlbF significantly correlated with the mean ISF glucose levels, indicating that they are reliable indices of glycemic control in DM PD patients. Icodextrin dialysate seems to have a favorable glycemic control effect when compared to the other glucose-containing dialysates.
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