[Correction of early cognitive disorders in school-age children operated under total intravenous anaesthesia].

Unlabelled: The aim of the study was to assess the possibility and effectiveness of hopaten acid use for early postoperative cognitive dysfunction correction in children of school age.

Materials And Methods: In compliance with inclusion and exclusion criteria, totally 40 children of school age (7-16 years old, ASA status I-II) with surgical pathology: (varicocele, cryptorchidism, inguinal hernia) were included A comperative assessment of neuropsychic status during pre - and postoperative are period in children, operated under propofol-fentanyl total intravenous anesthesia (TIVA) was conducted All patients were randomized to the control (without cepebroprotection 1st group, 20 children) and experimental (using cepebroprotection with hopaten acid within 1 month after the operation, 2nd group, 20 children) groups. Dimension of the study: Harvard standard monitoring, respiratory gas composition, neuropsychic tests (Bourdon test, "10 words test", etc.

[Choosing the structure of the control system for an external counterpulsation complex].

The paper is concerned with the principles of choosing the structure of the external counterpulsation control on an a.c. hydrodrive.

[Study of the efficacy of assisted circulation control by mathematical and physical modeling methods].

The efficiency of the assisted circulation control has been studied by mathematical and physical simulation. It has been assessed by simulating a transient process within the circulation system that imitated the left ventricular failure. The control system for regulation of the assisted circulation process based on the mathematical models is shown to be capable of maintaining the main hemodynamic parameters and the left ventricular relief at the present level in heart failure.

[The sinus VK experimental apparatus for assisted circulation].

Presented in the paper is the unit for cardiosynchronized extra- and intracorporal control in the course of the intensive therapy of patients with acute cardiac failure. It provides several methods of the assisted circulation and can be used in clinical cardiology, surgery and reanimation departments. Main specifications, the structure and the principle of functioning are given.

[Control system for the Sinus artificial heart].

The control system, type "Sinus", for an artificial heart is proposed. The use of servomechanisms in this system allows one to obtain pressure pneumopulses of any required form. The form of pneumopulses can be determined either by an external source, e.

[Artificial heart control system].

To develop a system for the artificial heart control the algorhythm of the latter, with the blood pressure in the aorta acting as a regulation parameter, was analyzed on its mathematical model. The results of the algorhythm operation in three model situation describing transitional processes under physical efforts, stress and resuscitation are reported. The technical implemetation of the described algorhythm is set forth and a comparison of the obtained experimental data versus the design curves is made.

[Synchronous mechanical heart massage during assisted circulation].

In tests on dogs specially devised cardiac massage appliances and a monitoring system synchronizing the mechanical massage with the R wave on the ECG were used in carrying out a synchronous mechanical chest massage in conditions of an experimentally induced incompetence of the cardiac ventricles. Optimal parameters of the hemodynamics were recorded with the massage proceeding in such a manner, when mechanical action on the cardiac ventricles coincided with termination of the maximum pressure period of the myocardium. The synchronous ancillary cardiac massage effected under conditions of ventricular incompetence was found to be attended by a rise of cardiac output and increased aortic pressure, falling tension in the auricles and normalization of the acid-base equilibrium figures.