A First Experience of Distant Lung Preservation for Transplantation in the Russian Federation.

Lung transplant is an effective method of treating patients with end-stage respiratory diseases, but problems such as the imbalance between the number of donor organs and the number ofrecipients needing organs still play a leading role. From a transplant point of view, a multiorgan donor is considered of greatest efficiency, so that all organs that can potentially be used should be transplanted. The combination of the vast geographical territory of Russia, the shortage of actual donors, and the relatively small number of transplant centers has led to the need to transport donor lungs by air over long distances. There were already precedents in the world for remote preservation of donor organs for transplant. In this study, we have described the unique experience of remote evaluation of donor lungs with their subsequent air transportation and transplantation, which is the first such description in Russia to our knowledge. The donor lungs for lung transplant were brought from medical institutions of the Samara region to Moscow. During remote evaluation, all information was transmitted to the transplant center by providing access to the automated information system "Organ Donation," which was used at that time by the service and contained all information about a potential donor in real time. The 2 transplant candidates had end-stage cystic fibrosis and severe respiratory failure; both patients underwent organ implantation from donors located outside their regions. In conditions of shortages of donor organs, long-distance transportation is a reasonable, feasible, and safe procedure.

Clinical results of the application of perftoran for the treatment of odontogenous abcesses and phlegmons in the maxillofacial region.

INTRODUCTION: The study was carried out to ascertain the effects of perftoran in the treatment of facial and Dupuytren's phlegmons with simultaneous estimation of the general reaction in humans. MATERIAL AND METHODS: Seventy-six patients with facial or Dupuytren's phlegmons were divided into 2 groups, one with mild and the other with a severe course of the inflammatory process. Each group was subdivided into 2 subgroups: one control group with "traditional" treatment and one study group where the traditional treatment was supplemented with perftoran. Perftoran was given to both study groups (1-3 ml/kg body weight, single intravenous injection) immediately after surgery plus further daily local wound treatment with perftoran until the end of exudation. The condition of the purulent wound and its reparative processes, the state of free-radical oxidation processes, antihypoxia and effects of perftoran were evaluated at various treatment stages (the moment of surgically opening the phlegmon, on the 1st, 3rd and 7th postoperative days). RESULTS: Perftoran considerably decreased the tissue hypoxia as well as the transaminase and creatinine levels in blood serum. Perftoran helped to decrease the intoxication indices, hypoxaemia by 10-15%, to speed local wound healing by 2-5 days and to shorten the time of hospital treatment by 3-6 days on average. CONCLUSIONS: The many positive effects of perftoran on the clinical course of the disease and on a series of homeostatic parameters allow us to recommend that this drug to be added for treating patients having odontogenous phlegmons in the maxillofacial region.

A computational model of rat cerebral blood flow using non-uniform rational B-splines.

Non-Uniform Rational B-splines (NURBS) surfaces can be used for a computer simulation of shapes. Some anatomical models of human or animal structures have been recently developed on that basis. We used positron-emission tomography (PET) and computed tomography (CT) data for NURBS modeling of anatomical structures and isotope uptake in the rat brain. Our simplified model of the rat cerebral blood flow is the first step in a larger project aiming a simulation of PET scans in small animals followed by its validation in vivo.

Clinical results of Perftoran application: present and future.

Clinical experience of Perftoran (commercial drug of low concentrated perfluorocheminal emulsion) applications is presented in some statistical data and in brief analysis of clinical trials and following clinical studies described in the Russian scientific literature. Observed data allow us to suppose that Perftoran facilitates oxygen delivery together with remaining red blood cells at blood replacements and will have more wider area for application than just a blood substitute. Its infusion alleviates symptoms of ischemia at different types of occlusion vessels disease, improves grafting in plastic surgery, diminishes inflammation and prevents rejection of transplants, activates detoxication functions of liver, inhibits retro-virus infection development. Local PF applications is able to accelerate wounds and ulcers healing.