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Tolerance to Hemodialysis in Insulin-Requiring Diabetic Patients: BD vs AFB With Blood Volume Biofeedback

2014-08-27 03:14:46 | BioPortfolio

Summary

Diabetic nephropathy is becoming the most common primary renal disease in end stage renal disease patients. The prevalence of diabetic patients in dialysis reaches even the 30% of the dialysis population (USRDS) with an incidence rate, in some countries, up to 40%. The 5 years surviving time of diabetic patients in dialysis is about the 20% and, compared to the hypertension and glomerulonephritis complications, still remains the worst. Diabetes is often associated to several comorbid factors such as hypertension, autonomic neuropathy, vasculopathy, metabolic disorders (ketoacidosis, poor glycaemic control), and electrolyte disorders. So, the diabetic patient is fragile, with a rather poor tolerance to dialysis, lack of achievement of dry body weight and inadequate dialysis. In order to gain a more detailed insight into a possible better tolerance to dialysis, arising from the elimination of acetate in dialysate bath (Acetate Free Biofiltration) and from the use of an automatic system to control the blood volume (Blood Volume Control),the investigators would like to investigate the cardiovascular stability and the frequency of intradialytic symptoms in a prospective, randomized, cross-over study.

Description

Acetate-Free-Biofiltration (AFB) was proved to be a technique suitable to treat critical patients, such as elders and diabetics, because of frequency reduction of hypotensive episodes and symptoms during the treatment and a better control to metabolic aspects (such as metabolic acidosis).

The Blood Volume Control (BVC) is a tool, that allows to improve the cardiovascular tolerance to the treatment, especially in hypotension-prone patients, appearing promising in the correction of the arterial hypertension induced by the hydro-saline overload.

The use of BVC in AFB has been tested to verify the behaviour of the kinetics of electrolyte (in particular of bicarbonate) and it has got good results, in terms of a further improvement in treatment tolerance, for critical patients However, this therapy (AFB+BVC) was not yet evaluated as the dialysis tolerance improvement in diabetics concern, nor the relative contribution given by each factor in achieving this result.

The study, 9 months long, is aimed to verify the treatment tolerance of insulin requiring diabetic patients, by using standard bicarbonate dialysis (BD), or Acetate Free Biofiltration (AFB) and/or a Blood Volume Control(BVC). The study is divided in three phases: the first one, three months long, is the baseline in standard bicarbonate dialysis, then all the patients are shifted to AFB with BVC, for other three months, while the last three months long phase, after a randomization, has the aim to identify the relative contribution of each factor (absence of acetate in the bath or BVC) in the treatment tolerance improvement(if any). The treatment tolerance will be evaluated considering the frequency of intradialytic hypotensive events.

Study Design

Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Crossover Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Hypotension

Intervention

BD and BVC, AFB

Location

Hospital "Santa Maria della Scaletta"
Imola
Bologna
Italy

Status

Completed

Source

Università degli Studi di Brescia

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:14:46-0400

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