[Challenges of expert assessment of injury to health in the case of iatrogenic mastectomy due to erroneous histological verification of an oncological condition]. / Problemy ekspertnoi otsenki vreda zdorov'yu v sluchae yatrogennogo udaleniya molochnykh zhelez vsledstvie oshibochnoi gistologicheskoi verifikatsii onkologicheskoi patologii.

A case of commission forensic medical examination in the St. Petersburg Bureau of Forensic Science of a civil case due to an unfavorable treatment outcome is presented. Patient T., 45 years old; due to erroneous histological verification of oncological pathology, she had both breasts removed and received antitumor treatment. It has been shown that defects in histological diagnosis can lead to errors by clinicians and become the subject of lawsuits by patients accusing healthcare professionals of adverse treatment outcomes. It is emphasized that the current legislation lacks medical criteria and an algorithm for assessing the severity of injury to health in women with one or both breasts removed.

[On the stability of the irritant dibenz-[b,f]-[1,4]-oxazepine (substance CR)].

The objective of the present study was to determine the duration and conditions of persistence of the irritant dibenz-[b,f]-[1,4]-oxazepine (substance CR) on the environmental objects. The quantitative analysis of the substance on cotton fabric specimens was carried out using the approved method of high performance liquid chromatography (HPLC) with UV detection at different time periods and envirobmental conditions. It was shown that the main factor determining the lifetime of dibenz-[b,f]-[1,4]-oxazepine on the cotton fabric is the ambient conditions. By way of example, the "open" and "closed", storage of such specimens during 300 days resulted in the decrease of the amount of substance CR to 22.5 and 79% of the initial level respectively. By the end experiment (day 600) these values lowered to 3 and 52.5% respectively. Taken together, the results of the study indicate that dibenz-[b,f]-[1,4]-oxazepine can be described as a substance resistant to environmental impacts. It is comparable in terms of stability with such known irritants as capsicum oleoresin and pelargonic acid morpholide.

[The biological activity of the irritant dibenz-[b,f] - [1,4]-oxazepine (substance CR) persisting during a long period at the environmental objects].

The objective of the present study was to determine the biological activity of the irritant dibenz-[B,F]-[1,4]-oxazepine (substance CR) contained in the environmental samples in case of their "closed" storage during different periods of time. The experiments were carried out using male and female rabbits of the Chinchilla strain with the initial body mass of 3000-4000 g. The animals were administered an aqueous alcoholic extract from the tissue samples of the rabbit eye coat as described in the "Methodological guidelines on the medico-biological assessment of the safety of personal protection devices". The results of experiments indicate that extracts from tissue samples elicit irritation in the eyes of the laboratory animals even after their storage as long as 600 days. This observation suggests that substance CR retains the ability to cause irritation during a prolonged period.