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[Clinical and physiological studies of flight personnel with 1st stage hypertensive disease]
Insights
Hypertension in pilots elevates cardiovascular workload, increasing stroke volume and cardiac output. Identifying hemodynamic subtypes like cardiac, vascular, or mixed is crucial for effective management and medical expertise.
Area of Science:
- Cardiovascular Physiology
- Hypertension Research
- Aviation Medicine
Context:
- Investigates the cardiovascular system in pilots with Stage I hypertension.
- Focuses on hemodynamic and polycardiographic parameters.
- Examines 30 pilots diagnosed with hypertension.
Purpose:
- To identify informative hemodynamic and polycardiographic values in pilots with hypertension.
- To classify hemodynamic modifications of hypertensive disease.
- To establish the importance of identifying these modifications for treatment and expertise.
Summary:
- Increased stroke volume, cardiac output, ejection velocity, left ventricular power, and isometric contraction phase were observed.
- Hemodynamic modifications were categorized into cardiac-dominant (increased cardiac output), vascular-dominant (increased peripheral resistance), and mixed types.
- This classification aids in tailoring treatment and expert evaluation for pilots with hypertension.
Impact:
- Provides insights into the cardiovascular adaptations in hypertensive pilots.
- Highlights the significance of specific hemodynamic parameters for diagnosis.
- Facilitates personalized treatment strategies and occupational health assessments in aviation.
Abstract:
An examination of the functional state of the cardiovascular system of 30 pilots with hypertension of the I stage showed that the parameters expressing an increase of the blood ejected to the vascular bed were the most informative hemodynamic and polycardiographic values. It was found that the stroke volume, cardiac output, volume velocity of the ejection, power of the left ventricle, energy expenditure per I 1 of cardiac output and time of the isometric contraction phase increased. The interactions of the cardiac output and peripheral resistance made it possible to distinguish hemodynamic modifications of the hypertensive disease: cardiac-increased cardiac output (15 pilots), vascular--increased peripheral resitance (11 pilots) and mixed--simultaneous increase of both parameters (4 pilots). The identification of the modification is important for proper treatment and expertise.