[Alternative ways of collateral venous flow in occlusion of superior sagittal sinus].

The authors demonstrated alternative ways of bloodflow from occluded superior sagittal sinus through hypertrophic dural veins (middle meningeal veins) and sphenoparietal sinus. Parameters of bloodflow were evaluated using triplex ultrasonography. The possibility of venous drainage into anterior segment of superior sagittal sinus proximal to the site of occlusion with further retrograde flow towards dural venous anastomosis is verified.

[Specific features of anesthetic management of surgical treatment of malignant tumors of the skull base].

Neurosurgical interventions on the skull base including craniofacial block-resections were fulfilled on 36 patients aged from 16 through 73 years. Preoperative management of the patients was made mainly at the intensive therapy room. It included correction of water-electrolyte, protein metabolism, anemia.

[Surgical treatment of invasive tumors of the nasal cavity and paranasal sinuses involving the inferior and middle cranial fossae].

An analysis of combined treatment of 11 patients with tumors of the paranasal sinuses involving the skull base was made. Radical surgical interventions were performed in the volume of nasal exenteration, maxillectomy and orbital exenteration, nasal exenteration, and total maxillectomy. The technique of surgical interventions and results of treatment are described.

[Transfacial accesses to tumors of the clivus].

Treatment of 3 patients with malignant tumors of the skull base using transfacial accesses as half maxilotomy by the Kosson access and access with osteotomy of a nasoorbital complex was analyzed that provided a possibility to ablate large and gigantic tumors of the localization in question using the operative microscope and a traditional instruments' kit.

[Morphologic aspects of hemostasis disturbances in meningococcemia in children].

21 children who died from meningococcemia were studied. Shock disturbances of the microcirculation and thrombocytic part of hemostasis prevailed within first hours of the disease in the form of adrenal hemorrhages and brain edema as immediate cause of death. With an increase of the disease duration, aggregational thrombocytopenia, generalized microthrombosis, coagulopathy, fibrinolysis activation resulted in massive hemorrhages in a number of organs and tissues and manifested in the syndrome of polyorganic failure.

[A new allele variant of ssa and its participation in regulating the proliferation of the stem elements of the leg and antenna imaginal disks in Drosophila melanogaster].

Using a highly mutable FM/w oc system, we have established a new allele of ssa40aSc mutation whose phenotype is identical to ssa40aNs compound described in the literature. The following features are characteristic of the ssa40aSc flies phenotype: (1) the increased number of sex comb teeth, (2) complete fusion of tarsal segments, and (3) the decreased bristle size corresponding to that of ss flies. The first two features are evidence for the impaired stem cell proliferation in the antennal and leg imaginal discs which are determined to form distal structures.

[2 types of neuromuscular junction in the pharyngeal retractor muscle of snails].

The pharyngeal retractor muscle of Helix lucorum is innervated by two symmetrical nerves which contain axons of two types forming myoneural junctions with the muscle cells. Type I junctions correspond to thick axons. These axon terminals which contain a large number of spherical, clear vesicles (41 +/- 5 nm) and a smaller number of dense-cored vesicles (67 +/- 3 nm) make contacts mainly with noncontractile sarcoplasmic processes of muscle cells.