title: The matching of sinus arrhythmia to respiration: are trauma patients without serious injury comparable to healthy laboratory subjects?
abstract: We sought to better understand the physiology underlying the metrics of heart rate variability (HRV) in trauma patients without serious injury, compared to healthy laboratory controls. In trauma patients without serious injury (110 subjects, 470 2-min data segments), we studied the correlation between sinus arrhythmia (SA) rate, heart rate (HR), and respiratory rate (RR). Most segments with 2.4 < HR/RR < 4.8 exhibited SA-RR matching, whereas rate matching was absent in 81% of the segments with HR/RR < 2.4 and in 86% of the segments with HR/RR > 4.8. The findings were comparable, in some cases remarkably so, to previous reports from healthy laboratory subjects. The presence (or absence) of SA-RR matching, when SA is largely controlled by respiration, can be anticipated in this trauma population. This work provides a valuable step towards the definition of patterns of HRV found in trauma patients with and without life-threatening injury.
authors.forename: Xiaoxiao
authors.initials: X
authors.lastname: Chen
authors.forename: Andrew T
authors.initials: AT
authors.lastname: Reisner
authors.forename: Liangyou
authors.initials: L
authors.lastname: Chen
authors.forename: Shwetha
authors.initials: S
authors.lastname: Edla
authors.forename: Jaques
authors.initials: J
authors.lastname: Reifman
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001146:Arrhythmia, Sinus / Q000503:physiopathology*; D017097:Electric Impedance; D004562:Electrocardiography; D005260:Female; D064368:Healthy Volunteers; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D012119:Respiration; D058067:Wavelet Analysis; D014947:Wounds and Injuries / Q000503:physiopathology*; D055815:Young Adult