Search for: [Abstract = "n with NS, 3. to analyze the type of changes in selected temporal and frequential HRV parameters in EKG Holter monitoring as compared to the type of reaction observed during TT in children with NS, 4. to evaluate the type of reaction to TT and HRV result during 24\-hour EKG monitoring in children with MVP, 5. to determine whether children with NS without any other cardiac abnormalities and children with MVP and a history of NS, demonstrate disturbances in basic sympathetic\-parasympathetic balance, detectable by means of HRV analysis, 6. to develop an examination protocol aiming at optimizing diagnostic management in children and adolescents with syncope of unclear etiology. The clinical material consisted of the total of 185 \(103 F and 82 M\) children aged between 7.4 and 18.5 years diagnosed at Cardiology Outpatient Department, University Children’s Hospital of Cracow, in the years 2005\-2008. The children were divided into three groups\: Group 1 \- children with NS, Group 2 – patients with MVP, Group 3 – the controls, consisting of normal children. Group 1 included 71 children \(41 F and 30 M\) aged between 8.75 and 17.8 years \(x=13.8 ± 2.21\), Group 2 \- 62 subjects \(35 F and 27 M\) aged 7.42\-18.5 years \(x=14.2± 2.39\), and the controls \- 52 children \(27 F and 25 M\) aged 7.75\-17.6 years \(x=13.2± 2.93\). The diagnostic management included subjective and objective clinical a"]

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