Mathematical model equation of the volume flows through polymeric membrane of heterogeneous non-ionic solutions

Formalism leading to more general form of the Kedem-Katchalsky equation describing osmotic membrane transport, considering local unhomogenity of solutions called concentration boundary layers and influence of gravitational factor on membrane transport kinetics was presented. In order to test this formalism, osmotic volume flux was calculated, on the basis of experimental membrane transport parameters and aqueous glucose solutions in isothermal conditions. Obtained calculation's results are conformable to adequate experimental results presented in previous paper for flat polymeric membrane used in medicine (Biophys. Chem. 1986, 24, 173).     

BMLA Annual Meeting 2006 Late Arriving Abstracts

Late Abstracts

BMLA Annual Meeting 2006 Late Arriving Abstracts     

Combined tracheostomy and percutaneous endoscopic gastrostomy

Percutaneous endoscopic gastrostomy is rapidly becoming the preferred method of long-term enteral access with minimal complications obviating the need for prolonged nasogastric or orogastric intubation. Tracheostomy is the accepted technique for long-term airway control, especially for protection against upper airway secretions and respiratory failure. Over a 14 month period, 73 percutaneous gastrostomies were inserted in 71 patients. Nine patients (12.6 percent) had previously undergone tracheostomy, and 13 patients (18.3 percent) underwent a percutaneous endoscopic gastrostomy immediately after tracheostomy. All procedures were performed under local anesthesia. The concomitant percutaneous endoscopic gastrostomy added little time to the total procedure and was not associated with additional complications. Early experience with percutaneous gastrostomy indicates that a substantial number of patients (30.9 percent in the present study) also required tracheostomy. The tracheostomy and percutaneous endoscopic gastrostomy combination completely frees the nasopharynx of indwelling tubes. Concomitant percutaneous gastrostomy should be considered in patients undergoing tracheostomy.     

Benign adenoma of the ciliary epithelium with tumour seeding.

Report on a benign epithelioma of the ciliar body which caused cataract and dislocation of the lens in a 44-year-old woman. Tumour seeding was a remarkable finding, and is a result of disruption of the epithelial lining due to active production of mucopolysaccharides by tumour cells.     

Fundus pulverulentus

Zusammenfassung Der Fundus pulverulentus ist eine familiär-hereditäre Veränderung des Pigmentepithels ohne Beeinträchtigung der Netzhautfunktionen. Er kann von den verschiedenen Formen der Pseudoretinopathia pigmentosa sowie von der Dystrophia reticularis laminae pigmentosae retinae durch morphologische, funktionelle und hereditäre Merkmale abgegrenzt werden.

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Fundus pulverulentus

Summary The fundus pulverulentus is a familiary hereditary change of the pigment epithelium without any disturbance of the retinal functions. It can be delimited by morphological, functional and hereditary characteristics from the different forms of Pseudoretinopathia pigmentosa and from Dystrophia reticularis laminae pigmentosae retinae.