cardiovascularКардиоваскулярная терапия и профилактикаCardiovascular Therapy and Prevention1728-88002619-0125«SILICEA-POLIGRAF» LLC10.15829/1728-8800-2013-4-32-35cardiovascular-210Research ArticleОСТРЫЙ КОРОНАРНЫЙ СИНДРОМ И ИНФАРКТ МИОКАРДАACUTE CORONARY SYNDROME AND MYOCARDIAL INFARCTIONОСОБЕННОСТИ ПОРАЖЕНИЯ КОРОНАРНЫХ АРТЕРИЙ ПРИ ИНФАРКТЕ МИОКАРДА ПРАВОГО ЖЕЛУДОЧКАCORONARY ARTERY PATHOLOGY IN RIGHT VENTRICULAR MYOCARDIAL INFARCTIONАйрапетянГ. Г.AyrapetyanG. G.

к. м.н., заведующий отделением неотложной кардиологии

Тел.: +(374) 91 505005, +(374) 93 555050 

tel.: +(374) 91 505005, +(374) 93 555050

cardioerebouni@yahoo.comАдамянК. Г.AdamyanK. G.

академик НАН Республики Армения, научный руководитель отделения инфаркта миокарда

Медицинский центр “Эребуни”Erebuni Medical CentreИнститут кардиологии, ЕреванCardiology Research Institute, Yerevan2013200820131243235Copyright © Айрапетян Г.Г., Адамян К.Г., 20132013Айрапетян Г.Г., Адамян К.Г.Ayrapetyan G.G., Adamyan K.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://cardiovascular.elpub.ru/jour/article/view/210Цель

Цель. Изучить анатомические и функциональных особенностей коронарного кровотока при инфаркте миокарда (ИМ) нижней стенки левого желудочка (ЛЖ) и вовлечением правого желудочка (ПЖ).

Материал и методы

Материал и методы. Обследованы 120 больных с ИМ нижней стенки ЛЖ и вовлечением ПЖ. Больные разделены на 2 группы (гр.): 1 – (n=62) без вовлечения в зону ИМ ПЖ (гр. ИМЛЖ) и 2 – (n=58) с вовлечением ПЖ (гр. ИМПЖ).

Результаты

Результаты. Поражение одной коронарной артерии (КА) обнаружено у 65,0% больных, причем у 76 (97,4%) больных – правой КА (ПКА) и только у 2 (2,6%) больных – огибающей КА (ОКА). Поражение двух КА установлено у 26,7% больных, ≥3 КА у 8,3%. Поражение одной КА в >1,3 раза чаще (р<0,05) регистрировалось в гр. ИМПЖ, а ≥3 КА в >8 раз (р<0,05) – в гр. ИМЛЖ. Правый тип коронарного кровообращения определен у 76,7% пациентов, кодоминантный тип у 15,0%, левый тип у 8,3% больных, причем все принадлежали к гр. ИМЛЖ. В 85% случаев ИМ-зависимой ртерией (ИЗА) являлась ПКА, в 15% – ОКА. Если в гр. ИМЛЖ ПКА почти в три раза чаще была ИЗА, чем ОКА, то в гр. ИМПЖ – в 18 раз (p<0,001 и p<0,001 соответственно). В гр. ИМЛЖ у всех 47 больных окклюзия ПКА, отвечающей за развитие острого ИМ, была дистальнoй, а у всех 55 больных гр. ИМПЖ – проксимальнoй.

Заключение

Заключение. Более чем в 2/3 случаев ИМ нижней стенки ЛЖ с элевацией сегмента ST развивается у больных с правым доминантным типом коронарного кровообращения. ИМ ПЖ, как правило, также развивается при правом доминантном типе при поражении ПКА в подавляющем большинстве случаев, ИМ нижней стенки ЛЖ, сопровождающийся ИМ ПЖ, развивается при поражении проксимальной ПКА.

Aim

Aim. To study anatomical and functional features of coronary blood flow in myocardial infarction (MI) of left ventricular (LV) inferior wall with the involvement of right ventriculum (RV).

Material and methods

Material and methods. The study included 120 patients who suffered MI of LV inferior wall with (Group 2 – LVMI; n=58) or without (Group 1 – RVMI; n=62) RV involvement.

Results

Results. One coronary artery (CA) was affected in 65,0% of the participants. Right CA (RCA) pathology was registered in 97,4% (n=76), while circumflex CA (CxCA) pathology was observed only in 2,6% (n=2). Involvement of two and three or more CA was observed in 26,7% and 8,3% of the patients, respectively. Single CA pathology was at least 1,3 times more common in the RVMI group (p<0,05), while three or more CA were affected at least 8 times more often in the LVMI group (p<0,05). The right dominant, co-dominant, and left dominant types of coronary flow were registered in 76,7%, 15,0%, and 8,3% of the patients, respectively, all of whom were from the LVMI group. In 85% and 15% of the cases, the infarct-related artery (IRA) was RCA and CxCA, respectively. Among LVMI patients, RCA was the IRA almost three times more often than CxCA; among RVMI patients, this difference was 18-fold (p<0,001 for both comparisons). All LVMI patients (n=47) had distal occlusion of RCA, while all RVMI patients (n=55) had its proximal occlusion.

Conclusion

Conclusion. Over two-thirds of the cases оf ST elevation MI of LV inferior wall with RV involvement occur in patients with the right dominant type of coronary blood flow. RVMI typically occurs in patients with right dominant type of coronary blood flow and PCA pathology. MI of LV inferior wall with RV involvement is characterised by proximal RCA occlusion.

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