cardioКардиологияKardiologiia0022-90402412-5660Kardiomag10.18087/cardio.2023.1.n2047cardio-2047Research ArticleОРИГИНАЛЬНЫЕ СТАТЬИRESEARCH ARTICLESФункционирование сердца у человека в прон-позицииFunctioning of the Human Heart in the Pron-PositionНужныйВ. П.NuzhnyV. P.

Доктор  медицинских наук,  доцент, старший научный сотрудник лаборатории физиологии сердца Института физиологии Коми НЦ УрО РАН, ФГБУН ФИЦ Коми научный центр Уральского отделения РАН.

Doctor of  Medical  Sciences, Associate Professor, Senior Researcher of  the Laboratory of  the Heart Physiology of  the Institute of  Physiology of  the Komi Science Centre of theUral Branch of the Russian Academy of Sciences, Federal Research Centre of the Komi Science Center of the Ural Branch of the Russian Academy of Sciences.

noting@inbox.ruДерновойБ. Ф.DernowoyB. F.

Кандидат медицинских наук, заведующий кабинета функциональной диагностики, врач    функциональной        диагностики госпиталя в ФКУЗ «Медико-санитарной части МВД России по Республике Коми»

Candidate of  Medical Sciences, Head of the Functional Diagnostics Office, Doctor of Functional Diagnostics of the Hospital at the Medical and Sanitary Unit of the Ministry of Internal Affairs of Russia in the Komi Republic.

dernowoy@yandex.ruКиблерН. А.KiblerN. A.

Кандидат биологических наук,   научный сотрудник лаборатории физиологии сердца Института физиологии Коми НЦ УрО РАН, ФГБУН ФИЦ Коми научный центр Уральского отделения РАН

Candidate of Biological Sciences, Senior Researcher, Researcher of  the Laboratory of  the Heart  of  the Institute of  Physiology of  the Komi Science Centre of theUral Branch of the Russian Academy of Sciences, Federal Research Centre of the Komi Science Center of the Ural Branch of the Russian Academy of Sciences.

natanadya@mail.ruПрошеваВ. И.ProshevaV. I.

Доктор биологических наук,   ведущий научный сотрудник  отдела медицинской физиологии Института физиологии Коми НЦ УрО РАН, ФГБУН ФИЦ Коми научный центр Уральского отделения РАН

Doctor of   Biological   Sciences,     Leading  Researcher of  the Department of Ecological and Medical Physiology  of  the Institute of  Physiology of  the Komi Science Centre of theUral Branch of the Russian Academy of Sciences, Federal Research Centre of the Komi Science Center of the Ural Branch of the Russian Academy of Sciences.

val-prosheva@yandex.ruШмаковД. Н.ShmakovD. N.

Доктор биологических наук, профессор, главный научный сотрудник лаборатории физиологии сердца Института физиологии Коми НЦ УрО РАН, ФГБУН ФИЦ Коми научный центр Уральского отделения РАН

Doctor of   Biological   Sciences,   Professor,  Chief Researcher of  the Laboratory of  the Heart Physiology  of  the Institute of  Physiology of  the Komi Science Centre of theUral Branch of the Russian Academy of Sciences, Federal Research Centre of the Komi Science Center of the Ural Branch of the Russian Academy of Sciences.

shmakovdn@yandex.ruИнститут физиологии ФГБУН ФИЦ «Коми научный центр Уральского отделения РАН», СыктывкарInstitute of Physiology of the Komi Scientific Center, SyktyvkarИнститут физиологии ФГБУН ФИЦ «Коми научный центр Уральского отделения РАН», Сыктывкар; ФКУЗ «Медико-санитарная часть МВД России по Республике Коми», СыктывкарInstitute of Physiology of the Komi Scientific Center, Syktyvkar; Medical and Sanitary Unit of the Ministry of Internal Affairs of Russia in the Republic of Komi, Syktyvkar2023310120236314247Copyright © Kardiomag, 20232023KardiomagKardiomaghttps://cardio.elpub.ru/jour/about/submissions#copyrightNoticehttps://cardio.elpub.ru/jour/article/view/2047

Цель    Изучение внутрисердечной гемодинамики у здоровых мужчин в положении лежа на спине и в прон-позиции (на животе).

Материал и методы  В исследование с применением эхокардиографии были включены 14 практически здоровых мужчин, средний возраст 38 лет.

Результаты   Установлено, что в прон-позиции изменяются конфигурация и положение сердца в грудной полости, увеличивается на 7,3 % частота сердечных сокращений и уменьшается на 13,7 % скорость трансаортального кровотока. В то же время увеличиваются скорости гемодинамики раннего и позднего диастолического кровенаполнения правого желудочка и систолического потока крови в легочной артерии на 31,7, 11,4 и 5,6 % соответственно. Выявлено уменьшение на 7 % скорости и на 14,2 % градиента давления регургитации на интактном трикуспидальном клапане.

Заключение     Таким образом, в прон-позиции пространственное изменение расположения сердца и его структур влияет на скорости внутрисердечного кровотока, что при длительной прон-позиции может инициировать развитие сердечной недостаточности.

 

Aim      To study intracardiac hemodynamics in healthy men in supine and prone positions.

Material and methods  This echocardiography study included 14 apparently healthy men at a mean age of 38 years.

Results In a prone position, the heart configuration and location in the chest changed, the heart rate increased by 7.3 %, and the transaortic flow velocity decreased by 13.7 %. Also, early and late right ventricular diastolic filling velocities and the pulmonary artery flow velocity were increased by 31.7, 11.4, and 5.6 %, respectively. In the intact tricuspid valve, the velocity and regurgitation pressure gradient were reduced by 7 % and 14.2 %, respectively.

Conclusion      In a prone position, spatial changes in the location of the heart and its structures influence velocities of intracardiac blood flow, which may initiate the development of heart failure if the prone position is long-lasting.

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The authors declare that there are no conflicts of interest present.