[Preventive myocardial revascularization prior to abdominal aortic repair in patients without cardiac symptoms: long-term results]. / Profilakticheskaya revaskulyarizatsiya miokarda pered rezektsiei anevrizmy bryushnoi aorty u kardiologicheski asimptomnykh bol'nykh: otdalennye rezul'taty.

OBJECTIVE: To evaluate the long-term influence of preoperative invasive coronary screening and preventive myocardial revascularization on mortality and cardiac complications after open surgery for abdominal aortic aneurysms (AAA). MATERIAL AND METHODS: We present long-term outcomes after open surgery for AAA between 2011 and 2022. Patients without clinical or objective signs of coronary artery disease were included. In the 1st group, routine coronary angiography was performed before surgery. Prophylactic myocardial revascularization was performed in 12 cases. Long-term data on 45 patients were obtained. In the 2nd group, 53 patients underwent repair without invasive coronary screening, and data on 48 patients were obtained in this group. RESULTS: The median follow-up was 32 and 79 months, respectively. Kaplan-Meyer overall 48-month survival was 87.3% and 82.1%, respectively (p=0.278). In the first group, 2 patients developed angina pectoris in the same period. In the second group, we observed 2 cases of myocardial infarction and 3 cases of angina pectoris without infarction. Analysis of survival curves found no significant differences (p=0.165). CONCLUSION: In our study, invasive coronary screening and preventive myocardial revascularization in patients without clinical and objective signs of coronary artery did not improve 4-year long-term period after abdominal aortic repair. Perhaps, differences will appear after 4 years, and this requires further follow-up after coronary angiography. However, there is a tendency towards more common onsets of coronary artery disease that dictates the need for cardiac monitoring of such patients.

[Adult respiratory distress syndrome in patients with infection]. / Respiratornyi distress-sindrom vzroslykh u bol'nykh sepsisom.

A grave complication of sepsis is a respiratory distress in adult persons observed by the authors in 11.3% of the examinees. The syndrome of respiratory distress could develop in the presence of toxico-infectious (septic) shock or severe allergic immediate responses to the administration of certain drugs. The main approaches to the treatment of respiratory distress in adult septic patients turned to be glucocorticoids, heparin and recurrent sessions of hemosorption.

[The effect of multiple and combined shock-inducing trauma on the processes of bone tissue reparation and on the recovery of work capacity in the victims]. / Vliianie mnozhestvennoi i sochetannoi shokogennoi travmy na protsessy reparatsii kostnoi tkani i vosstanovlenie trudosposobnosti postradavshikh.

Terms of consolidation of fractures and working ability were studied in 273 patients. Patients with multiple fractures of bones and with fractures associated with cranio-cerebral traumas were found to have slow consolidation (in 66.41%) or formation of a false joint (in 6.1%) due to severity of the trauma. It is just the cause of prolonged treatment and disability of the I or II group (in 66.6%). Active surgical treatment of such patients is necessary.

[Determination of the direction and degree of an animal's tendency to migrate based on a theoretico-probabilistic analysis of its movements in a maza]. / Opredelenie napravleniia i velichiny stremleniia zhivotnogo k migratsii na osnove teoretiko-veroiatnostnogo analiza ego peremeshchenii v labirinte.

Using Markov chains a mathematical model of animal displacement in the final labyrinth is obtained. Direction and value of animal tendency towards migration from a given location point are reflected in the complex of absolute frequencies of the system appearing in its states. When estimating the tendency towards migration in the applied labyrith the whole complex of frequencies can be featured by its component, e. g. by the frequencies of animal appearance in the extreme labyrinth passages.