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Sgarbossa's criteria are a set of electrocardiographic findings generally used to identify myocardial infarction (also called ''acute myocardial infarction'') in the presence of a left bundle branch block (LBBB) or a ventricular paced rhythm. Myocardial infarction (MI) is often difficult to detect when LBBB is present on ECG. A large clinical trial of thrombolytic therapy for MI (GUSTO-1) evaluated the electrocardiographic diagnosis of evolving MI in the presence of LBBB. Among 26,003 North American patients who had a myocardial infarction confirmed by enzyme studies, 131 (0.5%) had LBBB. A scoring system, now commonly called Sgarbossa criteria, was developed from the coefficients assigned by a logistic model for each independent criterion, on a scale of 0 to 5. A minimal score of 3 was required for a specificity of 90%. == Sgarbossa's criteria == Three criteria are included in Sgarbossa's criteria:〔 * ST elevation ≥1 mm in a lead with a positive QRS complex (ie: concordance) - 5 points * ST depression ≥1 mm in lead V1, V2, or V3 - 3 points * ST elevation ≥5 mm in a lead with a negative (discordant) QRS complex - 2 points ≥3 points = 90% specificity of STEMI (sensitivity of 36%)〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sgarbossa's criteria」の詳細全文を読む スポンサード リンク
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