Hygiene and Sanitation · May 18, 2026

Algorithm for diagnosing of the right ventricular diastolic dysfunction in workers of the main occupations in the coal industry

By Кorotenko OY, Филимонов ЕС

Introduction. Preserving the health in the working population through preventive measures is a priority area in contemporary healthcare, which indicates the relevance of preclinical diagnosis of cardiac dysfunction.Material and methods. There were examined one hundred forty five miners aged of 40 to 55 years. The exclusion criteria for the study were the presence of ischemic heart disease, complicated arterial hypertension, heart defects, and cardiomyopathies. All respondents underwent an investigation of external respiration function and echocardiography using standard methods.Results. There was elaborated the method for diagnosing of the diastolic dysfunction of the right ventricle in miners, including an assessment of transtricuspidal flows over early and late diastoles in pulse-wave in Doppler mode (E/A) mode, the ratio of early and late diastolic flows of tissue in Doppler mode (Ea/Aa), the ratio of early diastolic flow in pulse-wave mode to early diastolic flow of tissue in Doppler mode at the level of the fibrous ring of the lateral wall of the right ventricle (E/Ea), the determination of the Tei index, the right atrial volume index (RAI, ml/m²). If the value of the E/A ratio is less than or equal to 0.8, right ventricular diastolic dysfunction is diagnosed, and if the value of the E/A ratio is greater than 0.8, the Ea/Aa ratio is additionally evaluated. If the value of the Ea/Aa ratio exceeds 0.8, the right ventricular diastolic function is preserved, if the value of the Ea/Aa ratio is less than or equal to 0.8, the following criteria are additionally assessed: the value of the E/Ea ratio (greater than or equal to 6), the Tei index (greater than or equal to 0.55), and RAI (greater than or equal to 34 ml/m²). In the presence of two of these criteria, right ventricular diastolic dysfunction is diagnosed; in the presence of the one criterion or their absence, diastolic function is preserved.Limitations. This study is limited to a sample of workers of the main occupations in the coal industry who were examined at the Clinic of the Research Institute for Complex Problems of Hygiene and Occupational Diseases.Conclusion. When using the method, the initial signs of the right ventricular diastolic dysfunction are revealed, which will allow the timely preventing of heart failure and contribute to prolonging the working longevity of miners. Compliance with ethical standards. In accordance with the Declaration of Helsinki of the World Medical Association (ed. 2013), all subjects read and signed an informed consent to participate in the study, the protocol of which met the requirements of the Bioethics Committee of the Research Institute for Complex Problems of Hygiene and Occupational Diseases (Protocol of the Meeting No. 4, § 2 dated November 18, 2021).Contribution: Korotenko O.Yu. – concept and design of the study, collection of material, writing the text; Filimonov E.S. – data analysis. All authors are responsible for the integrity of all parts of the manuscript and approval of the manuscript final version.Conflict of interest. The authors declare no conflict of interest.Funding. The study had no sponsorship.Received: January 15, 2026 / Revised: February 19, 2026 / Accepted: March 24, 2026 / Published: May 18, 2026

doi.org/10.47470/0016-9900-2026-105-4-356-361Open accessBiomarkers