Abstract
PROGNOSIS OF ADVERSE OUTCOMES AFTER MYOCARDIAL INFARCTION BASED ON LEVEL OF HEART FATTY ACID BINDING PROTEIN
Kopytsya M.P., Petyunina O.V., Tytarenko N.V., Hileva Y.V., Vishnevskaya I.R., Peteneva L.L., Oparin O.L.
National Institute of Therapy n.a. L.T. Malaya of NAMS of Ukraine, Ukraine
Abstract.
Heart-type Fatty Acid Binding Protein (H-FABP) is a cytoplasmic protein. It`s released 30 minutes after onset of ischemia and enhances transportation of fatty acids from cardiomyocytes.
Aim: to examine the prognostic value of biochemical and clinical markers and their sum in relation to the development of adverse outcomes in six months follow up after acute myocardial infarction (AMI).
Methods and results. 189 patients with AMI were examined. They were divided into two groups: 1 - NSTEMI n=36 (9%); 2 - STEMI n=153 (81%), male 138 (73%). H-FABP was determined in blood plasma with ELISA, level of H-FABP was measured using normal value up to 1 ng/ml. During a 6-month follow-up 17 patients (9%) died. About 60 clinical and biochemical markers were analyzed using sequential Wald-Genkin's procedure. The curves of sensitivity and specificity were made using method of ROC-analysis and the threshold values were chosen for each parameter. H-FABP had sufficient level of sensitivity 85.7%, but insufficient specificity (49,2%), and such markers as age, heart failure class (Killip) and glucose level had insufficient sensitivity (50,0%; 66,7%; 43,7%) according to prognosis of death case. Each parameter was estimated in scores in relation to the cut-off value and the scale for measurement of prognostic coefficient (PC) using Gubler's method was proposed. Positive value of PC is associated with adverse outcomes in patients with AMI.
Conclusions: The mathematical model including the sum of markers – H-FABP level, age, glucose level, heart failure class (Killip) allows to prognose adverse outcomes after AMI with sensitivity 88% and specificity 78%.
Key words:
H-FABP, acute myocardial infarction, prognosis
Прогноз для розвитку несприятливих подій після перенесеного інфаркту міокарда на підставі рівня серцевого білку зв'язуючого жирні кислоти
Копиця М.П., Петюніна О.В., Титаренко Н.В., Гільова Я.В., Вишневська І.Р., Петеньова Л.Л., Опарін О.Л.
ДУ “Національний інститут терапії ім.Л.Т.Малої НАМН України”
Резюме.
Серцевий білок, що зв'язує жирні кислоти (СБСЖК) - цитоплазматический протеїн, який вивільняється протягом 30 хвилин після виникнення ішемії і підсилює транспорт жирних кислот з кардіоміоцитів.
Мета: прогнозування летального результату після перенесеного гострого інфаркту міокарда (ГІМ) на підставі аналізу біохімічних і клінічних маркерів і їх суми.
Матеріали і методи. Обстежено 189 пацієнтів з гострим інфарктом міокарду. Хворих з ГКС поділили на 2 групи: 1- інфаркт міокарду без зубця Q (n=36); 2 - інфаркт міокарда с зубцем Q (n=153), чоловіки 138 (73%). Визначали білок, зв’язуючий вільні жирні кислоти (БЗВЖК) в сироватці крови імуноферментним методом, нормальними значеннями рахували його концентрацію до 1 нг/мл. Протягом 6 місяців періоду спостереження 17 паціентів (9%) померли. Були побудовані криві чутливості та специфічності методом ROC аналізу та обрані порогові значення для кожного параметру. Виявлено, що БЗВЖК мав достатній рівень чутливості 85,7%, але недостатню специфічність (49,2%), а показники - вік, клас серцевої недостатності за Killip та рівень глюкози мають недостатню чутливість (50,0%; 66,7%; 43,7%) відповідно для прогнозу летального результату. Бальна оцінка була проведена для кожного параметру відносно порогового значення та запропонована шкала для розрахунку прогностичного коефіцієнту (ПК) за методом Гублера. Позитивне значення ПК асоціюється з летальнім результатом у хворих на ГІМ.
Висновок: математична модель з урахуванням суми ознак - рівня БЗВЖК, віку, рівня глюкози, серцевої недостатності за класифікацією Killip дозволяє прогнозувати летальний результат у хворих на ГІМ з чутливістю 88,2% і специфічністю 77,9%
Ключові слова:
БЗВЖК, гострий інфаркт міокарда, прогноз
Прогноз для развития неблагоприятных событий после перенесенного инфаркта миокарда на основании уровня сердечного белка связывающего жирные кислоты
Копица Н.П., Петюнина О.В., Титаренко Н.В., Гилева Я.В., Вишневская И.Р., Петенеова Л.Л., Опарин А.Л.
ГУ "Национальный институт терапии им.Л.Т.Малои НАМН Украины"
Резюме.
Сердечный белок, связывающий жирные кислоты (СБСЖК) - цитоплазматический протеин, который высвобождается в течение 30 минут после возникновения ишемии и усиливает транспорт жирных кислот из кардиомиоцитов.
Цель: прогнозирование летального исхода после перенесенного острого инфаркта миокарда (ОИМ) на основании анализа биохимических и клинических маркеров и их суммы.
Материалы и методы. Обследовано 189 пациентов с острым инфарктом миокарда. Больных с ОКС разделили на 2 группы: 1 - инфаркт миокарда без зубца Q (n = 36); 2 - инфаркт миокарда с зубцом Q (n = 153), мужчины 138 (73%). Определяли белок, связывающий свободные жирные кислоты (БССЖК) в сыворотке крови иммуноферментным методом, нормальными значениями считали его концентрацию до 1 нг / мл. В течение 6 месяцев периода наблюдения 17 пациентов (9%) умерли. Были построены кривые чувствительности и специфичности методом ROC анализа и выбраны пороговые значения для каждого параметра. Выявлено, что БССЖК имел достаточный уровень чувствительности 85,7%, но недостаточную специфичность (49,2%), а показатели - возраст, класс сердечной недостаточности по Killip и уровень глюкозы имеют недостаточную чувствительность (50,0%; 66,7%; 43,7%) соответственно для прогноза летального исхода. Балльная оценка была проведена для каждого параметра относительно порогового значения и предложена шкала для расчета прогностического коэффициента (ПК) по методу Гублера. Положительное значение ПК ассоциируется с летальным исходом у больных ОИМ.
Вывод: математическая модель с учетом суммы признаков - уровня БССЖК, возраста, уровня глюкозы, сердечной недостаточности по классификации Killip позволяет прогнозировать летальный исход у больных ОИМ с чувствительностью 88,2% и специфичностью 77,9%
Ключевые слова:
БССЖК, острый инфаркт миокарда, прогноз
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