The Use of Transvenous Lead Extraction of Non-Infected Leads to Prevent Long-Term Lead-Related Complications.

Unlabelled: was to study the issue of making challenging decisions concerning abandonment or removal of non-infected superfluous leads during lead revisions or cardiac implantable electronic device upgrades.

Materials And Methods: From 2010 to 2019, a total of 482 patients who had undergone cardiac implantable electronic device implantation in the past were admitted to hospital for generator replacement or lead revision. In 126 patients, 155 malfunctioning leads were found.

[Operation of biological systems for sewage treatment intensified by active oxygen].

The results of the study on the treatment of sewage containing high concentrations of hardly oxidizable organic compounds are presented. The procedure for the sewage treatment is highly efficient because of interaction of the resultant active oxygen with both the pollutants and the microorganisms providing the sewage treatment.