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PubMed · 8215948

Chronic biofiltration therapy.

V Djordjević·S Kostić·V Stefanović
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Abstract

Long-term follow-up evaluation of biofiltration treatment in 7 patients is presented. These patients experienced frequent episodes of hypotension during acetate hemodialysis. A 3-year biofiltration treatment reduced by 43% episodes of symptomatic hypotension and produced a significant increase in the pretreatment pH and plasma bicarbonate levels. The beta 2-microglobulin level was significantly reduced during biofiltration therapy. The mean systolic and diastolic blood pressures slightly increased during biofiltration. Uremic polyneuropathy, as demonstrated by an increase in motor nerve conduction velocity, slightly improved. The patients reported increased comfort during biofiltration therapy.

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Blood PressureFemaleFollow-Up StudiesHemodiafiltrationHumansKidney Failure, ChronicMaleNeural Conductionbeta 2-MicroglobulinJournal Article

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BibTeXRIS

V Djordjević, S Kostić, V Stefanović. 1993. Chronic biofiltration therapy.. https://doi.org/10.1111/j.1525-1594.1993.tb00615.x

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Assessment of left ventricular diastolic function by radionuclide ventriculography at rest and exercise in subclinical hypothyroidism, and its response to L-thyroxine therapy.

Hypothyroidism is associated with intrinsic myocardial changes reflected by alterations in contractility and relaxation. Diastolic function, however, rather than systolic cardiac function, seems to be mostly impaired by thyroid hormone deprivation. Our aim was to evaluate diastolic function at rest and during maximal exercise by means of radionuclide ventriculography in subclinical hypothyroidism before and after restoration of euthyroidism. Ten subclinical hypothyroid patients (50 +/- 8.7 years) (thyroid-stimulating hormone 11 +/- 4.2 microUI/ml) without cardiac disease were studied before and 6 months after levothyroxine (L-T(4)) replacement (thyroid-stimulating hormone 1.9 +/- 1.1 microUI/ml). We compared the basal and post-therapy cardiac parameters with a control group of 14 euthyroid patients (52.5 +/- 10 years) (thyroid-stimulating hormone 2.5 +/- 1.2 microUI/ml). Multigated equilibrium radionuclide ventriculography was performed to assess systolic and diastolic ventricular function. Student's t and paired Student's t tests were applied for statistical analysis. We found a significant difference between the time to peak filling rate (TPFR) at rest before (0.241 +/- 0.002 ms) and after (0.190 +/- 0.012 ms) treatment with L-T(4). A significant difference that disappeared after restoration of euthyroidism was also observed between the basal TPFR values of the subclinical hypothyroid patients and the control group (0.189 +/- 0.01 ms). The same pattern was observed at maximal exercise. Thus, TPFR, a parameter of left ventricular (LV) diastolic function measured by radionuclide ventriculography, is impaired in subclinical hypothyroid patients both at rest and during exercise and returns to normal values after L-T(4) therapy.

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