[Risk assessment for development of sudden cardiac death in patients with progressive angina (based on results of 4-year prospective study)]. / Metody otsenki riska razvitiia vnezapnoi kardial'noi smerti u bol'nykh, perenesshikh progrssiruiushchuiu stenokardiiu (po rezul'tatam 4-letnego prospektivnogo nabliudeniia).

In a 4-year follow-up of those patients having survived progressive angina (PA), the incidence rate was estimated of development of sudden cardiac death (SCD), with the aid of the Caplan-Mayer method and that of life tables. SCD rate has come to be 21.4% and 7.2% in the main group and that of patients free from structural affection of the myocardium. It is during the first year of the follow-up that patients with prior PA were at the greatest risk for SCD. It has been ascertained that aneurysm of the left ventricle and presence of chronic I-II degree cardiac insufficiency are independent and significant risk factors for SCD in those patients with history of PA.

[Gunpowder particles as a factor in a gunshot from up close]. / Chastitsy porokha kak faktor blizkogo bystrela.

Existence of different opinions on the role of gunpowder particles in determining close shot distance promoted the experiments with pistol "PM" and sporting fowling piece in vertical and horizontal directions at different distances from 0.5 up to 2.5 m using targets made of pasteboard and moistened photographic paper. The quantities of gunpowder particles on the targets which were calculated by stereoscopic microscope increased distinctly in vertical shot direction (from above downwards), especially at distances 2 and 2.5 m and particle flight distance rose; in horizontal shot direction distances of gunpowder particle flight didn't exceed 2-3 m.