[Russian study on brain aneurysm surgery: a continuation (RIHA II)].

Objective: To assess the main performance indicators of neurosurgical departments in surgical treatment of cerebral aneurysms in the Russian Federation.

Material And Methods: We analyzed 22 neurosurgical departments (19 regional and 3 federal hospitals) in 2017 and 2021. The study enrolled 6.

[Surgical treatment of cerebral aneurysms in the Russian Federation].

Objective: The objective of this study was to evaluate the results of surgical treatment of cerebral aneurysms in the Russian Federation.

Material And Methods: We analyzed performance indicators in neurosurgical departments of regional and federal health institutions of the Russian Federation for 2017. The results of surgical treatment of cerebral aneurysms (CAs) were analyzed in 19 regional vascular centers (RVCs) in several federal districts and in 3 federal centers (FCs) with the most dynamically developing vascular neurosurgery and smoothly running system of statistical data processing.

Regulation of hemodynamic parameters under conditions of systemic administration of angiotensin II and angiotensin IV to rats after carotid glomectomy.

Systemic administration of angiotensin II was followed by an increase in systolic BP and HR in rats with carotid glomectomy, the time of attaining maximum values in treated animals was much higher than in sham-operated controls. Injection of angiotensin IV slightly reduced systolic BP in sham-operated animals and increased it in rats with carotid glomectomy. The involvement of the local renin-angiotensin system of the carotid body in systemic mechanisms of hemodynamics regulation is discussed.

Registration of Alfvén resonances in TCABR tokamak by the scanning reflectometer at sideband frequencies.

A frequency scanning O-mode reflectometer was used for studies of plasma density oscillations during local Alfvén wave (LAW) excitation in the Tokamak Chauffage Alfvén Brésilien (TCABR) at the frequency f(A) = 5 MHz. It was found that the spectrum of the reflectometer output signal, which consists mainly of the "beat" frequency f(B), is modified by the LAW excitation, and two additional frequency peaks appear, which are symmetrical in relation to the LAW excitation frequency f = f(A) ± f(B). This result opens the possibility to improve the efficiency of studying the LAW induced density oscillations.

[The state of thyroid system in patients with non-traumatic supratentorial hematomas].

Concentrations of thyroid hormones (thyrotrophic - TTG, T3, T4) were measured with radioimmunological assay in the blood serum of 69 operated patients with supratentorial stroke interbrain hematomas. Hematomas were removed using a puncture/ aspiration method with local fibrinolysis. The lethality was 19%.