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Crochetage sign

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Crochetage sign

Publicada em: Saúde e medicina
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Crochetage sign

  1. 1. Crochetage sign ECG IN CHD
  2. 2. 12 LEAD ECG
  3. 3. • Crochetage sign was first described in 1959 • Is defined as notch on the R-wave in inferior limb leads • Is seen in patients with ostium secundum or sinus venosus ASD • It has high specificity (92–100%), when present in all three inferior leads • Its incidence increases with greater left to right shunt or larger anatomical defect • Post-operatively, early disappearance of this pattern occurs in around one third of patients

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