RESUMEN
The aim of research was substantiation of necessity and accessibility of acoustic indication of intravascular decompressive aerogenesis in a practice of diving medical. Authors define possibilities of portable ultrasound blood flow indicator for location of decompressive gas bubbles. It was found that acoustic indication of intravascular decompressive gas bubbles made by simple portable ultrasonic blood flow meter allows to reveal moving gas bubble in blood flow. Authors came to conclusion that it is necessary to include portable ultrasonic diagnostic equipment into the norms of medical supply for ships, vessels and military units of the Armed Forces of the Russian Federation.
Asunto(s)
Enfermedad de Descompresión/diagnóstico por imagen , Medicina Militar/instrumentación , Medicina Militar/métodos , Medicina Naval/instrumentación , Medicina Naval/métodos , Adulto , Buceo , Humanos , Masculino , UltrasonografíaRESUMEN
The study involving 48 patients with the preliminary diagnosis of acute coronary syndrome aged 54-78 years included analysis of clinical, laboratory and instrumental data for subgroups with different definitive diagnosis (myocardial infarction and unstable angina in 28 and 22 patients respectively). On the whole, the mean content of HSP-70 at admission averaged 2.1 ± 0.3 ng/ml and decreased to 1.6 ± 0.4 ng/ml (p < 0.05) after therapy. In the subgroup with myocardial infarction, the HSP-70 level (1.6 ± 0.4 ng/ml) was significantly lower than in patients with unstable angina (2.1 ± 0.3 ng/ml); p < 0.05. The reduced HSP-70 level associated with a severe myocardial lesion gives evidence against the hypothesis of these proteins as markers of myocardial dysfunction whereas a rise in their content at the onset of ischemic process suggests their protective role.
Asunto(s)
Angina Inestable , Proteínas HSP70 de Choque Térmico/sangre , Infarto del Miocardio , Miocardio , Anciano , Angina Inestable/diagnóstico , Angina Inestable/metabolismo , Angina Inestable/terapia , Biomarcadores/sangre , Diagnóstico Diferencial , Tratamiento de Urgencia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Infarto del Miocardio/diagnóstico , Infarto del Miocardio/metabolismo , Infarto del Miocardio/terapia , Miocardio/metabolismo , Miocardio/patología , Factores de Riesgo , Estadística como AsuntoRESUMEN
The authors presented the echocardiography and doppler sonography of aquanauts during the period of long-term effects of deep diving (to 500 m). According to the analysis of the given data the following was revealed: imperceptible atrium distensibility, left ventricular concentric remodeling without myocardial hypertrophy, saving of general and regional myocardial contractile function, left ventricular diastolic dysfunction grade 1, intact right ventricle, orthoarteriotony in pulmonary artery, change of size and distensibility of the aortic root. The authors came to conclusion that there are 2 different process in the structural ventricular remodeling during the period of long-term effects of deep diving--envolving myocardial consolidation and heart chamber dilation. These two processes is connected with temporary factor atypical for natural age dynamic. The aortic root has a atherosclerotic change and distensibility. There is no further dynamic distensibility. The abovementioned changes in heart and aorta can progress in aquanauts, which have too many dives. Patients in the study group haven't dived over the years, but nevertheless have the abovementioned changes.
Asunto(s)
Aorta , Buceo/efectos adversos , Ventrículos Cardíacos , Contracción Miocárdica , Exposición Profesional/efectos adversos , Arteria Pulmonar , Remodelación Ventricular , Adulto , Aorta/diagnóstico por imagen , Aorta/fisiopatología , Ventrículos Cardíacos/diagnóstico por imagen , Ventrículos Cardíacos/fisiopatología , Humanos , Masculino , Medicina Naval , Arteria Pulmonar/diagnóstico por imagen , Arteria Pulmonar/fisiopatología , UltrasonografíaRESUMEN
It is established that after the termination of deep saturation dives reorganization of respiratory system at navy aquanauts proceeds. This remodeling is specific, atypical for natural age dynamics.