Heart Rate Variability during Face Cooling in Concussed Adolescents

Autor: Mohammad N Haider, Kaitlin B. Viera, Itai Bezherano, Charles G. Wilber, John J. Leddy
Rok vydání: 2019
Předmět:
Zdroj: Neurology. 93:S8.1-S8
ISSN: 1526-632X
0028-3878
DOI: 10.1212/01.wnl.0000580900.09715.8d
Popis: ObjectiveWe measured heart rate variability (HRV) during physiological stimuli in acutely concussed adolescents (CX) and after clinical recovery, and compared with healthy controls (HC).BackgroundConcussion is associated with autonomic dysfunction. Face Cooling (FC) triggers the trigeminal nerve to evoke transient increases in cardiac parasympathetic (PNS) activity.Design/Methods11 CX (14.8 ± 0.9 years, 6 male, 7 days since injury) and 11 HC (16.1 ± 1.1 years, 9 male) participated. We calculated mean heart rate (HR), standard deviation of root mean square (RMSSD, measure of PNS tone) and low-frequency to high-frequency power ratio (LF/HF ratio, measure of sympathetic [SNS] tone) at rest and 3-minute FC test.ResultsCX at Visit 1 and 2 had significantly lesser increase in HR (p = 0.02) and RMSSD (p = 0.038) than HC on FC.ConclusionsThese data show that acutely concussed participants have an attenuated PNS response to physiological stimuli which continues after clinical recovery.
Databáze: OpenAIRE