ABCD² score

Document Sample
ABCD² score Powered By Docstoc
					ABCD² score
From Wikipedia, the free encyclopedia

The ABCD 2 score is a clinical score to determine the risk for stroke within the first two days following a transient ischemic
attack (TIA, a condition in which temporary brain dysfunction results from oxygen shortage in the brain).[1] The score has
recently been proposed to be equally useful to predict the risk of recurrent stroke during the first hours following TIA or minor
stroke. [2]

The ABCD 2 score is based on five parameters: age, blood pressure, clinical features, duration of TIA, and presence of
diabetes.[1] Each item is scored and the results are added to a result ranging between zero and seven. The ABCD 2 score is
a modified version of the ABCD score (which covers the same parameters but without diabetes). [3]

 1 Scoring system
 2 Interpretation
 3 See also
 4 Footnotes

Scoring system
                                                        ABCD 2 score

              Age            Blood Pressure                  Clinical Features                 Duration           Diabetes

   0           <60                                                                           less than 10
                                 normal                  other than those specified                              no diabetes
 points       years                                                                             minutes

   1           ≥60        raised (blood pressure        speech disturbance without                                diabetes
                                                                                           10 to 59 minutes
 points       years              ≥140/90)                       weakness                                          present

                                                      unilateral (one-sided) weakness        ≥60 minutes

The risk for stroke can be estimated from the ABCD 2 score as follows:
    Score 1-3 (low)
        2 day risk = 1.0%
        7 day risk = 1.2%
    Score 4-5 (moderate)
        2 day risk = 4.1%
        7 day risk = 5.9%
    Score 6–7 (high)
        2 day risk = 8.1%
        7 day risk = 11.7%

See also
    California score[4]
  1. ^ a b Johnston SC, Rothwell PM, Nguyen-Huynh MN, et al. (January 2007). "Validation and refinement of scores to predict very
     early stroke risk after transient ischaemic attack". Lancet 369 (9558): 283–92. doi:10.1016/S0140-6736(07)60150-0 .
     PMID 17258668 .
  2. ^ Chandratheva A, Mehta Z, Geraghty OC, et al. (2009). "Population-based study of risk and predictors of stroke in the first few
     hours after a TIA" . Neurology 72 (22): 1941–1947. doi:10.1212/WNL.0b013e3181a826ad            . PMC 2690971      .
     PMID 19487652 .
  3. ^ Rothwell PM, Giles MF, Flossmann E, et al. (2005). "A simple score (ABCD) to identify individuals at high early risk of stroke after
     transient ischaemic attack". Lancet 366 (9479): 29–36. doi:10.1016/S0140-6736(05)66702-5 . PMID 15993230 .
  4. ^ Johnston SC, Gress DR, Browner WS, Sidney S (December 2000). "Short-term prognosis after emergency department diagnosis
     of TIA". JAMA 284 (22): 2901–6. doi:10.1001/jama.284.22.2901 . PMID 11147987 .

via ABCD² score

Shared By: