Tomography diagnostic of plasma radiated power on the spherical tokamak Globus-M.

A diagnostic system for plasma radiated power tomography on Globus-M was upgraded with a new linear array based on silicon photodiodes. The hardware of the diagnostic system based on a 256-channel tangential matrix array and a 24-channel linear array is described. The algorithm for 2D tomographic reconstruction of plasma emissivity is presented.

Spontaneous breathing of heliox using a semi-closed circuit: a bench study.

Introduction: The use of helium-oxygen mixture (heliox) for ventilation has an advantage in patients with obstruction of the airways. The physical properties of helium enable an easier gas flow through the airways; this enables easier breathing for the patient when compared to standard ventilation of air. A high cost of heliox falls within the factors that limit the use of heliox in clinical practice.

Normocapnic high frequency oscillatory hyperventilation increases oxygenation in pigs.

High frequency oscillatory ventilation (HFOV), contrary to conventional ventilation, enables a safe increase in tidal volume (V(T)) without endangering alveoli by volutrauma or barotrauma. The aim of the study is to introduce the concept of normocapnic high frequency oscillatory hyperventilation and to assess its effect upon oxygen gain under experimental conditions. Laboratory pigs (n = 9) were investigated under total intravenous anesthesia in three phases.

Normocapnic high-frequency oscillatory ventilation affects differently extrapulmonary and pulmonary forms of acute respiratory distress syndrome in adults.

The recently reported differences between pulmonary and extrapulmonary acute respiratory distress syndromes (ARDS(p), ARDS(exp)) are the main reasons of scientific discussion on potential differences in the effects of current ventilatory strategies. The aim of this study is to assess whether the presence of ARDS(p) or ARDS(exp) can differently affect the beneficial effects of high-frequency oscillatory ventilation (HFOV) upon physiological and clinical parameters. Thirty adults fulfilling the ARDS criteria were indicated for HFOV in case of failure of conventional ventilation strategy.

Changes in alveolar-arterial oxygen difference and oxygenation index during low-dose nitric oxide inhalation in 15 newborns with severe respiratory insufficiency.

Unlabelled: We evaluated changes in alveolar-arterial oxygen differences (AaDO2) and oxygenation index (OI) during inhalation of low-dose nitric oxide (INO) in 15 newborns with severe respiratory insufficiency: congenital diaphragmatic hernia (CDH) -6, asphyxial lung disease -4, meconium aspiration syndrome (MAS) -2, respiratory distress syndrome -2, persistent pulmonary hypertension of newborn -1. Their mean birth weight was 2522 g (1030-3200 g, SD +/- 575), mean gestational age 36 weeks (29-39 weeks, SD +/- 3.2), mean initial AaDO2 = 607 mm Hg (574-628 mm Hg, SD +/- 14) and mean initial OI = 32 (6-57, SD +/- 12).

Endothelial desquamating activity of rat synthetic fibrinopeptide B and its analogues "in vivo": identification of responsible sequence.

The endothelial desquamating activity of the synthetic rat fibrinopeptide B (ATTDSDKVDLSIAR-OH), and its analogues was studied "in vivo" after intravenous administration to rats. Rat fibrinopeptide B (FPB) caused a significant increase in the count of circulating endothelial cell carcasses at the dose of 100 nmol/kg. Maximal effect reaching about 270% of the normal value was achieved with the dose of 600 nmol/kg in 30 min.

[Tracheobronchography in neonates and infants with obstruction of the upper respiratory tract].

In the period of 1980 to 1989 the authors performed contrast examinations of tracheobronchial tree in 38 children up to one year of age, three of them being newborns. In 29 examined children (74.4%) there was an anatomical defect causing the obstruction of upper respiratory pathways.

[Thrombosis of the inferior vena cava with successive lung embolization in a 15-year-old boy with nephrotic syndrome].

The authors report on a boy with typical course of recent nephrotic syndrome, who developed massive thrombosis involving the iliac inferior holden veins during the standard therapy with corticosteroid. The first sign of this complication was pulmonary embolism. Thrombosis was treated by surgery, during which 3 large thrombi from veins were removed.

[Thrombosis of the inferior vena cava with successive lung embolization in a 15-year-old boy with the nephrotic syndrome].

The authors report on a boy with typical course of recent nephrotic syndrome, who developed massive thrombosis involving the iliac inferior holden veins during the standard therapy with corticosteroid. The first sign of this complication was pulmonary embolism. Thrombosis was treated by surgery, during which 3 large thrombi from veins were removed.