Comparative effects of dialysis with cuprophan versus polyacrylonitrile membranes on plasma immunoreactive parathyroid hormone levels in patients on chronic hemodialysis

Guéris, J; Fournier, A; Sébert, J. L.; Fremont, J. F. de; Ferriere, C.; Covoet, B.; Quichaud, J

doi:10.1007/bf02064122

Cited by 3 publications

(1 citation statement)

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“…We do not know whether iPTH intradialytic removal with this dialyzer, associated with the effect of lower phosphate intake and calcitriol administration, may help in containing HPS. In some studies, hemodialysis with different membranes and dialysis modalities did not affect the short‐term severity of secondary hyperparathyroidism (5,17,18). In a recent study (19), 13 chronic hemodialysis patients treated with AN69 membrane after 9 months showed a decreased bone turnover on bone biopsy as compared with 11 patients on HD with cellulosic membrane.…”

Section: Discussionmentioning

confidence: 99%

Fistula Function and Dialysis Adequacy During Ozonotherapy in Chronically Hemodialyzed Patients

et al. 2004

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There are a variety of complications related to chronic hemodialysis treatment, including thrombosis in hemodialysis access leading to blood recirculation, and in turn to the deterioration in hemodialysis effectiveness. Given that ozone decreases blood viscosity, increases erythrocyte deformability, and inhibits coagulation, the periodic blood ozonation may be of benefit in the attenuation of these disturbances. To gain insight into this issue,we originally evaluated the impact of ozonated autohemotherapy on recirculation in arteriovenous fistula, hemodialysis adequacy, and the frequency of dialyzer reuse. Twelve chronically hemodialyzed patients with peripheral arterial disease were enrolled in the prospective, placebo-controlled study. Nine sessions of autohemotherapy with the exposure of blood to oxygen, as a control, and nine sessions of autohemotherapy where the blood is exposed to ozone in a concentration of 50 microg/mL are administered in a single-blind manner. Access recirculation is measured by means of spectral technology(Crit Line Monitor, HemaMetrics, Kaysville, UT, U.S.A.), and hemodialysis adequacy is calculated using the Daugirdas formula and expressed as the Kt/V index. The Kt/V index and the frequency of dialyzer reuse do not change after ozonated autohemotherapy. Recirculation decreases after ozonotherapy in the majority of patients.on average by 35.3%, but the change does not reach the level of statistical significance (P = 0.064). We demonstrate that ozonated autohemotherapy does not influence dialysis adequacy and the frequency of dialyzer reuse. The improvement of fistula function, expressed as a decrease in recirculation, is not significant, although seen in the majority of patients.

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Section: Discussionmentioning

confidence: 99%

Fistula Function and Dialysis Adequacy During Ozonotherapy in Chronically Hemodialyzed Patients

et al. 2004

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Hydrogels in Biomedical Applications

1980

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The nature of hydrogel polymers is described together with the range of biomedical applications in which their use has been suggested or described in the literature. The field of contact lens materials has provided the greatest variety of synthetic hydrogels and the material requirements for extended wear lenses present problems that are typical of those encountered in biomedical applications in general. The patient literature relating to contact lenses is reviewed and the development of the composition of hydrogel materials is thereby traced and compared with the range of lens materials currently available. In contrast the most commonly encountered, in fact almost the sole, hydrogel material in the literature relating to those areas more conventionally regarded as biomedical, is poly(2‐hydroxeythyl methacrylate) or polyHEMA. The use of this and related hydrogels in various applications including prostheses, ocular surgery, sature coatings, artificial internal organs and drug delivery systems is reviewed.

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