cardiotomskСибирский журнал клинической и экспериментальной медициныSiberian Journal of Clinical and Experimental Medicine2713-29272713-265XTSU publishing10.29001/2073-8552-2018-33-1-50-60cardiotomsk-421Research ArticleКЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯCLINICAL STUDIESМЕХАНИКА ЛЕВОГО ЖЕЛУДОЧКА В ПЕРВУЮ ТРЕТЬ СИСТОЛЫ У ЗДОРОВЫХ ДЕТЕЙ, РОЖДЕННЫХ ДОНОШЕННЫМИLEFT VENTRICLE MECHANICS IN THE FIRST THIRD SISTOLE IN HEALTHY CHILDREN BORN FULL-TERMПавлюковаЕ. Н.PavlyukovaE. N.

д-р мед. наук, профессор, ведущий научный сотрудник, отделение атеросклероза и хронической ишемической болезни сердца 

634012, Томск, ул. Киевская, 111а 

Dr. Sci. (Med.), Leading Research Worker of Atherosclerosis and Chronic Ischemic Heart Disease Department

111а, Kievskaya str., Тоmsk, 634012

pavluk@cardio-tomsk.ruКолосоваМ. В.KolosovaM. V.

д-р мед. наук, профессор, кафедра пропедевтики детских болезней с курсом детских инфекционных болезней и поликлинической педиатрии

634050, Томск, Московский тракт, 2 

Dr. Sci. (Med.), Professor of Propaedeutics of Childhood Diseases with the Course of Children’s Infectious Diseases and Polyclinic Pediatrics Department

2, Moskovsky trakt, Tomsk, 634050

kolosova_mv@inbox.ruУнашеваА. И.UnashevaA. I.

аспирант

634012, Томск, ул. Киевская, 111а 

Postgraduate 

111а, Kievskaya str., Тоmsk, 634012

ПоддубныйВ. В.PoddubnyjV. V.

д-р техн. наук, профессор, кафедра прикладной информатики, факультет информатики 

634050, Томск, пр. Ленина, 36

Dr. Sci. (Tech.), Professor of Department of Applied Informatics, Faculty of Informatics

36, Lenin prospect, Tomsk, 634050

КарповР. С.KarpovR. S.

академик РАН, научный руководитель

634012, Томск, ул. Киевская, 111а 

Dr. Sci. (Med.), Professor, Academician of RAS, Scientific Leader 

111а, Kievskaya str., Тоmsk, 634012

karpov@cardio-tomsk.ruНаучно-исследовательский институт кардиологии, Томский национальный исследовательский медицинский центр Российской академии наукРоссияCardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of SciencesRussian FederationСибирский государственный медицинский университет Министерства здравоохранения Российской ФедерацииРоссияSiberian State Medical UniversityRussian FederationНациональный исследовательский Томский государственный университетРоссияNational Research Tomsk State UniversityRussian Federation2018130520183315060Copyright © Павлюкова Е.Н., Колосова М.В., Унашева А.И., Поддубный В.В., Карпов Р.С., 20182018Павлюкова Е.Н., Колосова М.В., Унашева А.И., Поддубный В.В., Карпов Р.С.Pavlyukova E.N., Kolosova M.V., Unasheva A.I., Poddubnyj V.V., Karpov R.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.sibjcem.ru/jour/article/view/421Цель

Цель: оценить ротацию и скручивание левого желудочка в первую треть систолы у здоровых детей и подростков, рожденных доношенными.

Материал и методы

Материал и методы. Анализ выполнен у 108 здоровых детей в возрасте от 5 мес. до 18 лет, рожденных доношенными, которые относились к группам здоровья I–II. До включения в исследование ни один ребенок в течение последних 6 мес. не переносил, острых респираторных вирусных инфекций. В зависимости от возраста дети и под- ростки были разделены на следующие подгруппы: от 5 мес. до 3 лет, от 3 до 6 лет, от 6 до 11 лет и старше. По половому соотношению выделенные подгруппы детей между собой не различались. Ротация левого желудочка оценена на уровне базальных сегментов, папиллярных мышц, верхушечных сегментов и скручивание левого желудочка в первую треть систолы и к концу систолы.

Результаты

Результаты. Ротация левого желудочка в первую треть систолы на уровне базальных сегментов зарегистрирована у 75,9% здоровых детей, имевших I тип скручивания левого желудочка и у 29,4% здоровых детей — со вторым типом скручивания левого желудочка. Ротация левого желудочка на уровне апикальных сегментов выявлена — у 20,37% детей с I типом скручивания левого желудочка. Феномен «отсутствия скручивания левого желудочка в первую треть систолы» выявлен у 12,96% здоровых детей и подростков, рожденных доношенными в возрасте до 4 лет. Наличие данного феномена не зависело от типа скручивания левого желудочка в конце систолы, индекса сферичности в конце систолы и диастолы. При феномене «отсутствия скручивания левого желудочка в первую треть систолы» время до пиковой скорости скручивания левого желудочка менее 85 мс.

The aim of the study is to assess the left ventricle rotation and twist in the first third of the systole in healthy children and adolescents born full-term.

Material and Methods

Material and Methods. The analysis was carried out in 108 healthy children aged 5 months to 18 years, born full-term, who belonged to the health groups I–II. Prior to inclusion in the study, nobody has suffered and acute respiratory viral infections in the past 6 months Depending on the age, children and adolescents were divided into the following subgroups: from 5 months to 3 years, 3 to 6 years, 6 to 11 years and over 11 years. On the basis of the sex ratio, the distinguished sub-groups of children did not differ among themselves. Left ventricle rotation is assessed at the level of basal segments, papillary muscles, apex segments and left ventricle twisting in the first third of the systole and towards the end of the systole.

Results

Results. Left ventricle rotation in the first third of the systole at the level of the basal segments was recorded in 75.9% of healthy children who had type I of left ventricle twist and in 29.4% of healthy children with the second type of left ventricle twist. Left ventricle rotation at the level of the apical segments was revealed — in 20.37% of children with type I left ventricle twist. The phenomenon of «lack of left ventricle twist in the first third of the systole» was found in 12.96% of healthy children and adolescents born full-term at the age before 4 years. The presence of this phenomenon did not depend on the type of left ventricle twist at the end of systole, the left ventricle sphericity index at the end of systole and diastole of left ventricle. In the phenomenon of «lack of left ventricle twist in the first third of the systole», the time to the peak rate of left ventricle twist rate in systole is less than 85 ms.

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