Document Detail

Detection of Concussion Using Cranial Accelerometry.
MedLine Citation:
PMID:  25010149     Owner:  NLM     Status:  Publisher    
OBJECTIVE:: To determine whether skull motion produced by pulsatile cerebral blood flow, as measured by cranial accelerometry, is altered during concussion.
DESIGN:: In phase 1, to identify a specific pattern indicative of concussion, cranial accelerometry of subjects who sustained a concussion underwent analysis of waveforms, which was compared with accelerometry from subjects without a concussion (baseline). In phase 2, this concussion pattern was tested against prospectively acquired, blinded data.
SETTING:: High school tackle football practice and game play.
PARTICIPANTS:: Eighty-four football players.
INTERVENTIONS:: Subjects had accelerometry measurements and concurrent 2-lead electrocardiograms. In players with a concussion, multiple sequential measurements were obtained. Sport Concussion Assessment Tool 2 was used to assist clinical determination of concussion.
MAIN OUTCOME MEASURES:: Whether a characteristic waveform pattern of cranial accelerometry occurs in subjects with concussion.
RESULTS:: Phase 1 demonstrated a consistent pattern correlated to concussion. Phase 2 found this pattern in 10 of 13 subjects with concussion (76.9% sensitivity). Seventy-nine of 82 baseline plus nine postseason (total = 91) recordings from nonconcussed subjects did not show the concussion pattern (87% specificity).
CONCLUSIONS:: In subjects with concussion, we observed a unique pattern determined by cranial accelerometry. This may provide a method to noninvasively detect and longitudinally observe concussion.
CLINICAL RELEVANCE:: There is no objective, real-time, noninvasive, and easily accessible measure for concussion. If accelerometry is validated, it could provide a critical diagnostic tool for sports medicine physicians.
Paul S Auerbach; Jennifer G Baine; Megan L Schott; Amy Greenhaw; Monika G Acharya; Wade S Smith
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-9
Journal Detail:
Title:  Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine     Volume:  -     ISSN:  1536-3724     ISO Abbreviation:  Clin J Sport Med     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9103300     Medline TA:  Clin J Sport Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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