2021, Number 4
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Med Int Mex 2021; 37 (4)
14-hour analysis of the cardiac behavior based on an exponential law
Rodríguez-Velásquez J, Correa C, Prieto S, Laguado E, Pernett F, Villamizar M, Olivella E, Angarita F, De la Cruz G, Morales C
Language: Spanish
References: 32
Page: 475-483
PDF size: 257.69 Kb.
ABSTRACT
Background: Based on an exponential mathematical law previously developed in
the context of nonlinear systems and fractal geometry, normal cardiac dynamics were
mathematically differentiated from abnormality in 21 hours.
Objective: To confirm the clinical applicability of this methodology evaluating Holter
registries through an exponential mathematical law in a 14 hour-lapse.
Material and Method: A prospective study was done selecting Holter registries
from normal and abnormal cardiac dynamics to simulate the behavior of each dynamic
in 21 and 14 hours, generating the corresponding chaotic attractors. The fractal dimension
and the occupancy spaces were calculated to give rise to the physical-mathematical
diagnosis. Finally, a statistical comparison was performed with the physical mathematical
against the conventional diagnosis.
Results: There were selected 120 registries; it was possible to differentiate normality
from abnormality through the spatial occupation of attractors in 14 hours, finding
values between 216 and 381 for Kp and between 22 and 193, respectively. The kappa
coefficient was 1 and the sensitivity and specificity were 100%.
Conclusions: The exponential mathematical methodology applied to cardiac
dynamics in 14 hours allowed the accomplishment of mathematical differentiations
between states of normality and abnormality in cardiac systems.
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