MarkU said:
Just to be clear, the risk of incurring a closed head injury has absolutely nothing to do with whether you're on Coumadin.
If you do incur a head injury bad enough to cause intercranial bleeding you've got problems, Coumadin or not.
Again, as I asked before, can anybody show me any documented proof that Coumadin really makes such an injury worse??? Yeah, you're going to bleed a bit longer, but your blood still will coagulate and stop bleeding. Being on Coumadin does not mean that you're a hemophiliac.
Does anyone know how much naturally-occuring variation there is with INR levels? Should we be screening participants in contact sports to see if their 'normal' INR is >1.0, and banning them if it is?
Mark
I don't know if you are being sarcastic with your second question, but the there are quite a few articles from studies if you look for "coumadin closed head injury" on the pubmed site
I'm not sure if this link will work because it was longer than my address space,
http://www.ncbi.nlm.nih.gov/sites/e...ez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
if not I'll copy a short one BTW being 47, I was surprised to see in some of the articles elderly is over 55
to be fair, one of the studies I read, found no difference, but most of them were close to this
Franko J, Kish KJ, O'Connell BG, Subramanian S, Yuschak JV.
Department of Surgery, Abington Memorial Hospital, Abington, Pennsylvania 19001, USA.
[email protected]
BACKGROUND: A large population of patients on oral anticoagulants is exposed to the risk of traumatic brain injury (TBI). Effects of age and anticoagulation on TBI outcomes need to be assessed separately. METHODS: Retrospective analysis of consecutive series of TBI patients (age 18 years and older) in a suburban teaching hospital. RESULTS: A total of 1,493 adult blunt head trauma patients between January 2001 and May 2005 were analyzed. Of these, 159 patients were warfarin-anticoagulated at the time of trauma. The mortality in anticoagulated patients was statistically significantly higher than in the control group (38/159, 23.9% vs. 66/1,334, 4.9%; p < 0.001; odds ratio 6.0). Mortality of patients over 70 years of age was significantly higher than in the younger population (p < 0.001). Both mortality and the occurrence of intracranial hemorrhage (ICH) after head trauma were significantly increased with higher INR (Cochran's linear trend p < 0.001), especially with INR over 4.0 (mortality 50%, risk of ICH 75%). Preinjury warfarin anticoagulation and age were found to be predictive of survival in a binary logistic regression model (92.5% correct prediction, p = 0.027). Addition of Injury Severity Score and initial Glasgow Coma Score to this model only modestly improved its predictive performance (95.4% correct prediction, p < 0.001). CONCLUSIONS: Both age and warfarin anticoagulation are independent predictors of mortality after blunt TBI. Warfarin anticoagulation carries a six-fold increase in TBI mortality. Age over 70 years and excessive anticoagulation are associated with higher mortality, as well.
PMID: 16832256 [PubMed - indexed for MEDLINE]