‘Crochetage’ sign on ECG in secundum ASD: clinical significance

@article{Bhattacharyya2016CrochetageSO,
  title={‘Crochetage’ sign on ECG in secundum ASD: clinical significance},
  author={P. J. Bhattacharyya},
  journal={BMJ Case Reports},
  year={2016},
  volume={2016}
}
Key MethodA 50-year-old woman with no cardiovascular risk factors was evaluated for easy fatigability and progressive dyspnoea on exertion for the last 1 year. Cardiac auscultation revealed a normal first heart sound, an ejection systolic murmur at the upper left sternal border and wide and fixed splitting of the second heart sound. The ECG demonstrated sinus rhythm, incomplete right bundle branch block (RBBB) and ‘crochetage’ sign (notch near the apex of the R wave) in inferior limb leads (figure 1…Expand
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The Significance of Crochetage on the R wave of an Electrocardiogram for the Early Diagnosis of Pediatric Secundum Atrial Septal Defect
'Crochetage' Sign of Atrial Septal Defect.