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@article{490783, author = {Honzík, Petr and Hrabec, Jakub and Lábrová, Ruzena and Semrád, Borivoj and Honzíková, Nataša}, article_location = {Brno}, article_number = {3}, keywords = {Myocardial infarction; cardiac death; risk stratification; fuzzy method; weighted method.}, language = {eng}, issn = {1211-3395}, journal = {Scripta Medica}, title = {Fuzzification, weight and summation of risk factors in a patient improves the prediction of risk for cardiac death.}, volume = {76}, year = {2003} }
TY - JOUR ID - 490783 AU - Honzík, Petr - Hrabec, Jakub - Lábrová, Ruzena - Semrád, Borivoj - Honzíková, Nataša PY - 2003 TI - Fuzzification, weight and summation of risk factors in a patient improves the prediction of risk for cardiac death. JF - Scripta Medica VL - 76 IS - 3 SP - 141-148 EP - 141-148 PB - Faculty of Medicine, Masaryk University SN - 12113395 KW - Myocardial infarction KW - cardiac death KW - risk stratification KW - fuzzy method KW - weighted method. N2 - Patients surviving myocardial infarction are at risk of cardiac death. The predictive value of non-invasive indices of risk (ejection fraction<40%, positive late potentials, a frequency of ventricular premature complexes>10/hour, baroreflex sensitivity<3ms/mmHg or low heart rate variability, SDNN index<30ms, SDANN<50 ms) is insufficient. New fuzzy and weighted methods for the stratification of patients at risk, which take into account that the borderline between a risky and non-risky value of a risk factor is not sharp, and significance of factors, were developed. New individual risk factors based on summation of fuzzified risk factors (Fuzzy Sum r.f., Fuzzy-Weighted Sum r.f.) were introduced. By this method, sensitivity 40 and specificity 97% were reached at positive predictive value 50%. ER -
HONZÍK, Petr, Jakub HRABEC, Ruzena LÁBROVÁ, Borivoj SEMRÁD a Nataša HONZÍKOVÁ. Fuzzification, weight and summation of risk factors in a patient improves the prediction of risk for cardiac death. \textit{Scripta Medica}. Brno: Faculty of Medicine, Masaryk University, 2003, roč.~76, č.~3, s.~141-148. ISSN~1211-3395.
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