Значимая положительная динамика клинического течения и обратного ремоделирования миокарда у молодых пациентов с хронической сердечной недостаточностью на фоне модуляции сердечной сократимостиВандер М. А., Лясникова Е. А., Ким И. М., Лелявина Т. А., Ситникова М. Ю., Лебедев Д. С., Михайлов Е. Н.Представлены три клинических случая 2-летнего наблюдения за молодыми пациентами с хронической сердечной недостаточностью с низкой фракцией выброса левого желудочка некоронарогенного генеза после имплантации системы модуляции сердечной сократимости. Показана выраженная положительная динамика клинического течения и обратного ремоделирования миокарда по данным двухмерной эхокардиографии и 2D speckle tracking эхокардиографии (STE). Методика 2D STE позволила наглядно продемонстрировать улучшение локальной сократимости межжелудочковой перегородки в зоне имплантированных электродов и отдаленный эффект улучшения глобальной сократимости в течение 1 года наблюдения на фоне модуляции сердечной сократимости.Российский кардиологический журнал. 2019;24(7):99-102 http://dx.Ключевые слова: модуляция сердечной сократимости, хроническая сердечная недостаточность, 2D-speckle tracking эхокардиография.Конфликт интересов: не заявлен.ФГБУ Национальный медицинский исследовательский центр им. В. А. Алмазова Минздрава России, Санкт-Петербург, Россия.
Aim. To assess the 2-year prognosis of patients with heart failure with reduced ejection fraction (HFrEF) receiving cardiac contractility modulation (CCM).Material and methods. This single-center observational study included 55 patients (46 men, mean age 53±11 years) with NYHA class II-III HFrEF receiving optimal medical therapy, with sinus rhythm, QRS <130 ms or QRS<150 ms with nonspecific intraventricular conduction delay. NYHA class II and III were established in 76% and 24% of patients, respectively. All patients were implanted with CCM devices between October 2016 and September 2017. Follow-up visits were carried out every 3 months during the 1st year and every 6 months during the 2nd year of observation. The primary composite endpoint was mortality and heart transplantation. Secondary composite endpoints included death, heart transplantation, paroxysmal ventricular tachycardia/ ventricular fibrillation, hospitalizations due decompensated HFResults. The one-year and two-year survival rate was 95% and 80%, respectively. Primary endpoint was observed in 20% of patients. NYHA class III and higher levels of N-terminal pro-brain natriuretic peptide (NTproBNP) were associated with unfavorable prognosis (p=0,014 and p=0,026, respectively). NTproBNP was an independent predictor of survival (p=0,018). CCM contributed to a significant decrease in hospitalizations due to decompensated HF (p<0,0001). The secondary endpoint was observed in 18 (33%) of patients during the 1st year. The predictor for the secondary composite endpoint was NTproBNP (p=0,047).Conclusion. CCM is associated with a significant decrease in hospitalization rate due to decompensated HF. The 2-year survival rate of patients with NYHA class II-III HF receiving CCM was 80%. The NTproBNP level was an independent predictor of survival in patients receiving CMM for 2 years. Further longer-term studies of the CCM efficacy are required.
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