Search results for "DIALYSIS"

A complex case of fatal calciphylaxis in a female patient with hyperparathyroidism secondary to end stage renal disease of graft and coexistence of h…

2012

Background: Calciphylaxis is a potentially fatal complication of persistent secondary hyperparathyroidism; its cause is still not clear. Unfortunately there is no close relation in severity of clinical picture, serological and pathological alteration. For this reason the prognosis is difficult to establish. Administration of sodium thiosulphate may reduce the precipitation of calcium crystals and improve the general clinical conditions before surgical parathyroidectomy, which seems the only therapeutic approach able to reduce the mortality risk in these patients. Methods and Results: A 60 year old female patient suffering from End Renal Stage Disease, on haemodialysis from 2001 due to the o…

Reoperation for persistent or recurrent secondary hyperparathyroidism. Surgical treatment of renal hyperparathyroidism

2017

Background: Secondary hyperparathyroidism is a common acquired disorder seen in chronic renal failure. Its pathophysiology is mainly due to hyperphosphatemia and vitamin D deficiency and resistance. When medical treatment fails, subtotal and total parathyroidectomy with autotransplantation are the standard procedures, although both are associated with high recurrence rates. Methods and Results: 4 patients experienced persistence and 9 relapse. The first 4 were subjected to reoperation after 6 months for the persistence of symptoms due to the finding of a supernumerary adenomatous gland while the remaining patients at the reoperation showed in 5 cases 2 more glands in over thymic position, a…

Retinal detachment with spontaneous dialysis of the ora serrata in a 13-year-old child with neurofibromatosis type 1: a case report.

2020

A 13‑year‑old child diagnosed with neurofibromatosis type 1 who on a routine control presented with rhegmatogenous retinal detachment associated to dialysis of the ora serrata in the left eye (OS). There were no clinical signs or history of contuse ocular trauma. Neurofibromatosis produces alterations in fibroblasts of the cortex of the vitreous base. This results in deficient production of the collagen fibers that anchor the vitreous base to the pars plana and the peripheral neurosensory retina. Thus, suboptimal function of the fibroblasts explains spontaneous avulsion of the vitreous base. Such avulsion in turn is related to dialysis of the ora serrata.

Autosomal recessive polycystic kidney disease: case report of a newborn with rare PKHD1 mutation, rapid renal enlargement and early fatal outcome

2020

Abstract Introduction Autosomal recessive polycystic kidney disease (ARPKD; MIM#263200) is one of the most frequent pediatric renal cystic diseases, with an incidence of 1:20,000. It is caused by mutations of the PKHD1 gene, on chromosome 6p12. The clinical spectrum is highly variable, ranging from late-onset milder forms to severe perinatal manifestations. The management of newborns with severe pulmonary insufficiency is challenging, and causes of early death are sepsis or respiratory failure. In cases of massive renal enlargement, early bilateral nephrectomy and peritoneal dialysis may reduce infant mortality. However, there is no conclusive data on the role of surgery, and decision-makin…

Perifērās neiropātijas izmeklēšana hemodialīzes pacientiem

2018

Pamatinformācija: Hroniska nieru slimība (HNS) ir globāla veselības problēma, kuras vidējā izplatība Eiropā ir 18.4 %. Perifērā neiropātija (PN) ir visizplatītākā neiroloģiskā komplikācija (~ 60 līdz 100 %) šiem pacientiem. PN diagnoze ietver padziļinātu klīnisko izmeklēšanu, tai skaitā pacienta slimības vēstures analīzi, neiroloģisko izmeklēšanu, laboratorisko testēšanu un elektrofizioloģiskās izmeklēšanas metodes. Skrīninga metodes var palīdzēt agrīni noteikt PN HNS pacientiem un laicīgi sākt terapiju, mainot slimības attīstības gaitu. Mērķis: Noteikt perifēro neiropātiju HNS pacientiem ar Mičiganas neiropātijas skrīninga metodes (MNSI) palīdzību, kas apstiprināta un pielietota cukura dia…

Chemical transformations of glucose in solutions for peritoneal dialysis after sterilization and during storage

2018

The objective of this work was to estimate glucose degradation products (GDPs) in solutions for peritoneal dialysis (PD) including glucose and sodium lactate based on the change of pH and absorption of ultraviolet (UV) light. Spectrophotometric and pH-metric methods were used to measure glucose degradation and transformation of GDPs in laboratory-made solutions after heat sterilization and during storage. Mechanism of transformations of GDPs in the sterilized solutions for PD during storage and spectral characteristic of 5-HMF were studied. Common features for all the batches of the tested solutions for PD after heat sterilization were a reduce in pH, increase in the absorbance in the range…

�ber die Wechselwirkung herzwirksamer Substanzen mit Ribonucleins�ure

1971

The degree of binding of 3,3′-dimethyl-4,4′-diacetyl-diphenylbisguanylhydrazonedinitrate (BG 60) and of progesterone bisguanylhydrazonedichloride (BG 31) to ribonucleic acid (RNA) was determined by means of equilibrium dialysis and by gel filtration on Sephadex® columns.

Quantitative in vivo microdialysis in pharmacokinetic studies: some reminders.

2005

This paper reviews the empirical methods of quantitative microdialysis that have been used to interpret the results obtained from pharmacokinetic studies. The concept of extraction efficiency or recovery and the properties of recovery in vivo (variation with flow rate, time dependency and influence of the mode of administration) are considered. The most frequently used methods for determining recovery in vivo are described and evaluated in the light of recent theoretical studies. Specifically, we review the variation of flow rate method, the very slow flow method, the no net flux method and the delivery and retrodialysis methods. Special emphasis is placed on the description of each method,…

Psychotropic drug competition for [3H]imipramine binding further indicates the presence of only one high-affinity drug binding site on human α1-acid …

1983

In vivo release of non-neuronal acetylcholine from the human skin as measured by dermal microdialysis: effect of botulinum toxin

2006

1.--Acetylcholine is synthesized in the majority of non-neuronal cells, for example in human skin. In the present experiments, the in vivo release of acetylcholine was measured by dermal microdialysis. 2.--Two microdialysis membranes were inserted intradermally at the medial shank of volunteers. Physiological saline containing 1 muM neostigmine was perfused at a constant rate of 4 microl min(-1) and the effluent was collected in six subsequent 20 min periods. Acetylcholine was measured by high-pressure liquid chromatography (HPLC) combined with bioreactors and electrochemical detection. 3.--Analysis of the effluent by HPLC showed an acetylcholine peak that disappeared, when the analytical c…