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PR interval as a predictor of syncope in tiltup testing in adolescents and young adults (CROSBI ID 292166)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Jug, Juraj ; Bradić, Lada ; Levicki, Rea ; Lovrić Benčić, Martina PR interval as a predictor of syncope in tiltup testing in adolescents and young adults // The Egyptian heart journal, 73 (2021), 28, 8. doi: 10.1186/s43044-021-00149-6

Podaci o odgovornosti

Jug, Juraj ; Bradić, Lada ; Levicki, Rea ; Lovrić Benčić, Martina

engleski

PR interval as a predictor of syncope in tiltup testing in adolescents and young adults

Syncope, as the most frequent consciousness disorder, is very common in young individuals. The aim of this study was to analyze ECG parameters and clinical properties obtained during tilt-up testing in 12 to 30-yearold subjects. We enrolled a total of 142 patients from our outpatient clinic (39 males, 103 females) with a true positive tilt- up test and analyzed ECG records obtained during tilt- testing. Data were stratified according to the age, gender, and type of syncope. Results: PR interval shortening preceding syncope was found in all syncope types, irrespective of the gender. All types of syncope were more frequent in women (72.5%). Mixed syncope type was found to be the most common (47.18%). Male and female subjects differed in initial heart rate (71.56 vs 76.23/min, p=0.05), as well as heart rate dynamics during tilt-up testing. A gender difference was also found in systolic blood pressure (116.92 vs 110.44 mmHg, p<0.01), time to syncope onset (20.77 vs. 16.44 min, p=0.03), and the total number of syncopal episodes in patient history (2.79 vs. 4.62, p<0.05). Subjects with cardioinhibitory syncope had the longest PR interval (average 154.3 ms). PR interval prolongation and loss of variability during tilt-up testing positively correlated with aging (r= 0.22, p<0.05). Nodal rhythm was found in 8 patients. Conclusion: PR interval shortening on ECG tracings during a tilt- up test can be found in all subtypes of vasovagal syncope, thereby contrasting previous reports that these changes are a hallmark of the cardioinhibitory type of syncope. PR shortening, if observed during ECG monitoring, could be a potential predictor of syncope.

syncope ; PR interval ; young adults ; autonomic nervous system ; vasovagal ; loss of consciousness

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Podaci o izdanju

73

2021.

28

8

objavljeno

1110-2608

2090-911X

10.1186/s43044-021-00149-6

Povezanost rada

nije evidentirano

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