Magdalena Bryndza, Grzegorz Filip, Krzysztof Bartuś, Anna Chrapusta, Ewa Kobielska, Bogusław Kapelak and Radosław Litwinowicz
We hereby present the case of a female patient with recurrent aortic aneurysms. In order to treat aneurysms of the ascending aorta, aortic arch and aneurysms of the aortic arch branches, the debranching procedure was used. Following the surgery, a deep sternal wound infection occurred characterised by impaired healing. The infection was treated with targeted antibiotic therapy and hyperbaric oxygen therapy.
Knowledge of the impact of hyperbaric conditions, especially hyperbaric oxygen, on human and animal organisms, is of great theoretical and practical importance, particularly in reference to the increased application of hyperbaric oxygen for therapeutic purposes. It must be said that unfortunately our knowledge on the impact of hyperbaria, including oxygen hyperbaria, on the immunological response of the animal and human organisms is still not sufficient and is incomplete. The Institute of the Naval Medicine of the Naval Academy in Gdynia has been carrying out tests in this field for some years now. The tests have been carried out on animals (rabbits, guinea pigs) as well as on humans (commercial divers, scuba divers, and candidates to these activities) within immunology investigations. The impact of hyperbaric oxygen at pressures ranging between 2.8 and 3.1 ata, in single or multiple expositions, have been tested as well as the relations between hyperbaria in air and the different conditions of the exposure.The study revealed important shifts in the immunological response of both the animals and humans.
Magdalena Zawadzka, Maria Dziedziczak-Buczyńska, Andrzej Buczyński and Gabriela Henrykowska
Frequent consumption of large amounts of alcohol usually does not correspond to regular physical activity. However, regular physical activity can lead to an improved well-being and greater satisfaction with life. The aim of the study was to determine the level of physical activity in the group of patients diagnosed with alcohol dependence syndrome and examine the correlation between these variables. The study was conducted among a selected group of individuals of both sexes, aged 22-65 and undergoing treatment. Our study indicated an absence of a correlation between gender and the level of physical activity among people addicted to alcohol. Moreover, no statistically significant relationship was found between alcohol dependence and physical activity undertaken in the researched group.
Jarosław Paprocki, Marta Pawłowska, Paweł Sutkowy, Jacek Piechocki and Alina Woźniak
The activity of selected antioxidant enzymes: superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx) in erythrocytes, and the concentration of thiobarbituric acid reactive substances (TBARS) in blood plasma and erythrocytes, were determined in people subjected to hyperbaric oxygen (HBO) therapy due to sudden sensorineural hearing loss (SSNHL). Venous blood samples were taken immediately before entering the hyperbaric chamber and 5 min after leaving it. In the study group, two age subgroups were distinguished: group I consisting of subjects under 35 and group II consisting of subjects over 50. The obtained values were analysed statistically using Student’s t-test. Differences were considered as statistically significant at p < 0.05. A statistically significant decrease in the CAT activity was shown 5 min after leaving the hyperbaric chamber in pooled subjects (p < 0.01) and group I (p < 0.05). Furthermore, a statistically significant decrease in the erythrocyte TBARS concentration was observed in group II (p < 0.05). It was demonstrated that a single exposure to hyperbaric oxygen affects the oxidant-antioxidant equilibrium as evidenced by, e.g., a statistically significant decrease in the activity of catalase in erythrocytes. It is possible that the antioxidant response to HBO depends on the age of subjects.
Maciej Jerzemowski, Zbigniew Dąbrowiecki, Romuald Olszański, Piotr Siermontowski and Janusz Jerzemowski
Research shows a potential threat from external environmental factors which might be the cause of upper and lower gastrointestinal diseases in tourists, or soldiers engaged in tropical peacekeeping missions. The research includes infections which due to their spread are also present in their home countries such as Helicobacter pylori infections, viral hepatitis as well as infections which might cause symptoms of upper and lower gastrointestinal tract diseases as a result of poor sanitary and unhygienic conditions. Contact with diseases typical of the tropical climate, especially during longer stays, increases the chances of bringing some tropical diseases back to Poland, which can be problematic for the domestic health care service.
This is the first part of the material concerned with the analysis of drive systems in remotely controlled unmanned underwater vehicles. The paper discusses the problem of classification of UUVs, mainly remotely controlled, with an indication of four different approaches to this issue. Moreover, the article discusses the nomenclature used in relation to various components of the discussed drive systems and thrusters, as well as indicates the functionality of such systems along with the advantages and disadvantages of the analysed design solutions. The method of analysis of drive systems, its methodology and the results will be the subject of a subsequent publication of the authors.
This is the second part of material concerned with the analysis of drive systems in remotely controlled underwater vehicles. The first part involved the problem of classification of unmanned underwater vehicles, mainly remotely controlled, as well as the nomenclature used in relation to various components of the discussed drive systems and thrusters. The functionality of particular drive systems was discussed along with the advantages and disadvantages of the analysed design technologies. This material presents the method of conducting an analysis of drive systems, its methodology and results.
Tadeusz Doboszyński, Bogdan Łokucijewski, Piotr Siermontowski, Marek Rejman and Romuald Olszański
The purpose of the study was to determine the effect of composition of various breathing mixes on physical capacity of rats swimming in hyperbaric conditions. The said effect was determined on the basis of results of a swim test performed in a pressure chamber. The study was performed with the use of atmospheric air, a mixture of nitrogen and oxygen (N2/O2) at a ratio of 89.5/10 and 92/7.5, as well as a mixture of argon and oxygen at a ratio of 79.5/20 (Ar/O2). The tests were conducted at a pressure range between 0-4 atm. The results suggest that the physical capacity of the tested animals decreased along with pressure increase regardless of the breathing mix used. Due to the fact that the burdening of rats with physical effort in hyperbaric conditions intensifies the adverse effects of components of breathing mixes on their performance, it seems appropriate to continue the study of physiological responses to breathing mixtures of various compositions in human body subjected to physical effort while under water.
Stanisław Klajman, Kazimierz Dęga, Janusz Torbus and Zbigniew Wlazłowski
The barofunction of paranasal sinuses is of great significance in terms of diving safety and comfort. The paper aimed at determining the changes in the aeration of maxillary sinuses as a result of diving activities on the basis of a radiological image. Inter alia, it was observed that individuals who frequently practise diving show persistent changes in the radiological image of sinuses, however, usually they do not influence the diving capacity.
Sławomir Kujawski, Joanna Słomko, Monika Zawadka-Kunikowska, Mariusz Kozakiewicz, Jacek J. Klawe, Małgorzata Tafil-Klawe and Paweł Zalewski
Changes observed in the core body temperature of divers are the result of a multifaceted response from the body to the change of the external environment. In response to repeated activities, there may be a chronic, physiological adaptation of the body’s response system. This is observed in the physiology of experienced divers while diving. The purpose of this study is to determine the immediate and delayed effects of hyperbaric exposure on core temperature, as well as its circadian changes in a group of three experienced divers. During compression at 30 and 60 meters, deep body temperature values tended to increase. Subsequently, deep body temperature values showed a tendency to decrease during decompression. All differences in core temperature values obtained by the group of divers at individual time points in this study were not statistically significant.