Цель исследования: в нашем исследовании илопрост (Вентавис) был использован в качестве препарата для проведения острых фармакологических проб у пациентов с легочной артериальной гипертензией (ЛАГ). Материалы и методы. В исследование были включены 7 пациентов с ЛАГ, из них 5 женщин, средний возраст которых составил 32±12,0 года. Всем пациентам было проведено зондирование правых отделов сердца, в рамках которого проводились острые фармакологические пробы с использованием как оксида азота, так и илопроста. Помимо этого были проанализированы динамические показатели внутрисосудистого ультразвукового исследования (ВСУЗИ). Оценивались такие параметры, как толщина стенки интима–медиа, индекс пульсации, наружный и внутренний диаметр сосуда, площадь сосудистой стенки. Результаты. По сравнению с действием оксида азота на фоне использования илопроста отмечались более выраженные изменения гемодинамических показателей: степень снижения среднего давления в легочной артерии и легочного сосудистого сопротивления составила 17,2±5 против 25,37±9 мм рт. ст. и 251,4±120 против 276±129 дин×с×см-5 соответственно (р<0,05). Кроме того, гипотензивный эффект после ингаляции илопроста развивался быстрее. Более высокая эффективность илопроста при выполнении острых проб была также подтверждена данными ВСУЗИ: толщина комплекса интима–медиа составила 1,18±0,07 мм после ведения оксида азота и 1,01±1,12 мм после ингаляции илопроста (р<0,05); индекс пульсации составил 25±21,4 после использования оксида азота и 45,7±38 после ведения илопроста (р<0,05). Заключение. Наше исследование дает основание предполагать, что илопрост имеет преимущества не только как препарат для длительной патогенетической терапии, но и как вазодилататор для проведения острых фармакологических проб.
Objective: in our study, iloprost was used as a drug for acute tests in patients with pulmonary arterial hypertension (PAH). Design and Method. We included 7 pts with pulmonary arterial hypertension (PAH): 5 females and 2 males, average age 32,0±12,0 years.
All patients underwent right heart catheterization including acute tests with both nitric oxide and Iloprost. In addition to hemodynamic changes the intravascular ultrasound (IVUS) parameters were analyzed. We used parameters such as: intima-media thickness, the pulsatility index (PI), the outer and inner diameter of the vessel, the area of the vascular wall. Results. Compared with the action of nitric oxide, the degree of reduction of medium pulmonary arterial pressure (mPAP) after Iloprost was 17,2±5 and 25,37±9 mm Hg respectively, and pulmonary vascular resistance (PVR) 251,4±120 and 276±129 dynes×c×cm-5 respectively (p<0,05). In addition, the hypotensive effect of inhaled iloprost developed rapidly. More pronounced response to Iloprost was also confirmed by the data of IVUS: intima–media thickness decreased to 1,18±0,07 mm after leading NO and to 1,01±1,12 mm after iloprost inhalation (p<0,05), and the PI was 25±21,4 after using NO and 45,7±38 after iloprost (p<0,05). Conclusions: our research suggests that iloprost has advantages, not only as a drug for a long pathogenesis therapy, but as a vasodilator for acute pharmacological tests.
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