Fuzzification, weight and summation of risk factors in a
patient improves the prediction of risk for cardiac death.

J 2003

Fuzzification, weight and summation of risk factors in a patient improves the prediction of risk for cardiac death.

HONZÍK, Petr, Jakub HRABEC, Ruzena LÁBROVÁ, Borivoj SEMRÁD, Nataša HONZÍKOVÁ et. al.

Basic information

Original name

Fuzzification, weight and summation of risk factors in a patient improves the prediction of risk for cardiac death.

Authors

HONZÍK, Petr (203 Czech Republic), Jakub HRABEC (203 Czech Republic), Ruzena LÁBROVÁ (203 Czech Republic), Borivoj SEMRÁD (203 Czech Republic) and Nataša HONZÍKOVÁ (203 Czech Republic, guarantor)

Edition

Scripta Medica, Brno, Faculty of Medicine, Masaryk University, 2003, 1211-3395

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30105 Physiology

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

RIV identification code

RIV/00216224:14110/03:00009211

Organization unit

Faculty of Medicine

Keywords in English

Myocardial infarction; cardiac death; risk stratification; fuzzy method; weighted method.

Abstract

V originále

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%.

Citovat

HONZÍK, Petr, Jakub HRABEC, Ruzena LÁBROVÁ, Borivoj SEMRÁD and Nataša HONZÍKOVÁ. Fuzzification, weight and summation of risk factors in a patient improves the prediction of risk for cardiac death. Scripta Medica. Brno: Faculty of Medicine, Masaryk University, 2003, vol. 76, No 3, p. 141-148. ISSN 1211-3395.

@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 and 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, vol.~76, No~3, p.~141-148. ISSN~1211-3395.

Detailed Information on Publication Record