[Photoacoustic monitoring of chorioretinal complex during laser coagulation of ocular fundus].

The effect of laser treatment on ocular fundus tissues depends on quite a number of factors, mostly uncontrollable, hence, laser output parameters may vary dramatically even within the same fundus. In classical procedure ('threshold' laser coagulation), these parameters are adjusted to ophthalmoscopically visible tissue color changes at the site of coagulation. However, this method does not work with modern subthreshold techniques, that are more tissue-saving and thus, produce no immediate and visible changes in the retina.

[Prevention of infectious endocarditis in surgical diseases].

Case histories of 220 patients with infective endocarditis were studied. Groups of patients with high risk of the disease were established. "Risk coefficient" was calculated.