Difference between revisions of "Sgarbossa's criteria"
|Line 25:||Line 25:|
Revision as of 13:17, 25 September 2013
- Assesses likelihood that pt w/ chest pain and baseline LBBB has myocardial damage (+CK-MB)
- Criteria also applies to LBBB due to paced rhythm
- Low Sn, High Sp
- Still consider PCI/t-PA for pts w/ LBBB and "good story" despite not meeting the criteria
- ST elevation ≥1 mm in a lead with upward (concordant) QRS complex - 5 points
- ST depression ≥1 mm in lead V1, V2, or V3 - 3 points
- ST elevation ≥5 mm in a lead with downward (discordant) QRS complex - 2 points
- (See below for example of all 3 criteria)
- Smith's modification of the third rule of the Sgarbossa criteria to ST depression or elevation discordant with the QRS complex and with a magnitude of at least 25% of that of the QRS complex increases sensitivity from 52% to 91% at the expense of reducing specificity from 98% to 90%.
- ≥3 points = 98% probability of STEMI
- Sgarbossa, American Heart Journal 2006
- Sgarbossa, NEJM, February, 1996