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Table 4 Electrocardiographic predictors of culprit lesions

From: Significance of fragmented QRS complexes for identifying culprit lesions in patients with non-ST-elevation myocardial infarction: a single-center, retrospective analysis of 183 cases

 

Predictors of LAD lesion

 

Sens

Spec

PPV

NPV

LR (+)

LR (−)

fQRS in 2 anterior leads

80.9%

68.4%

77.1%

57.7%

1.99

0.54

fQRS in 3 anterior leads

73.0%

79.8%

85.8%

63.9%

3.61

0.34

fQRS in 4 anterior leads

62.7%

81.8%

93.3%

52.0%

4.45

0.23

fQRS in 5 anterior leads

38.6%

75.7%

68.4%

47.6%

1.59

0.81

 

Predictors of RCA lesion

 

Sens

Spec

PPV

NPV

LR (+)

LR (−)

fQRS in inferior leads

92.3%

65.5%

85.6%

79.2%

2.68

0.12

 

Predictors of LCX lesion

 

Sens

Spec

PPV

NPV

LR (+)

LR (−)

fQRS in I, aVL, and V6 leads

89.4%

71.7%

83.5%

80.9%

3.16

0.15

  1. LAD = left anterior descending artery; RCA = right coronary artery; LCX = left circumflex artery; Sens = sensitivity; Spec = specificity; PPV = positive predictive value; NPV = negative predictive value; LR = likelihood ratio.