JACC: Case Reports (May 2023)

Crochet Leads the Way

  • Jan Zeman, MD,
  • Avtandil Kochiashvili, MD,
  • Rohan Naik, MD,
  • Erind Muco, DO,
  • Agnes S. Kim, MD, PhD

Journal volume & issue
Vol. 13
p. 101814

Abstract

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The crochetage sign—a notch near the R-wave peak in the inferior leads—in conjunction with right axis deviation, complete or incomplete right bundle branch block, and right ventricular hypertrophy (R/S ratio >1 in lead V1) on 12-lead electrocardiogram are highly suggestive of atrial septal defect. (Level of Difficulty: Intermediate.)

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