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Crochet Leads the Way.

Jan Zeman1, Avtandil Kochiashvili1, Rohan Naik2

  • 1Department of Internal Medicine, University of Connecticut, Farmington, Connecticut USA.

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|April 20, 2023
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Summary
This summary is machine-generated.

The crochetage sign on an electrocardiogram, along with specific heart rhythm abnormalities, strongly indicates an atrial septal defect. These ECG findings are key indicators for diagnosing this heart condition.

Keywords:
atrial septal defectelectrocardiogramimaging

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Area of Science:

  • Cardiology
  • Diagnostic Electrocardiography

Background:

  • Atrial septal defects (ASDs) are congenital heart conditions that can lead to significant cardiovascular complications.
  • Early and accurate diagnosis of ASDs is crucial for timely intervention and management.

Purpose of the Study:

  • To identify specific electrocardiogram (ECG) findings suggestive of atrial septal defects.
  • To correlate ECG patterns with the presence of ASDs.

Main Methods:

  • Analysis of 12-lead electrocardiograms (ECGs) from patients with confirmed atrial septal defects.
  • Evaluation for the presence of the crochetage sign, right axis deviation, right bundle branch block, and right ventricular hypertrophy.

Main Results:

  • The crochetage sign, characterized by a notch near the R-wave peak in inferior leads, was observed.
  • A combination of right axis deviation, right bundle branch block (complete or incomplete), and right ventricular hypertrophy (R/S ratio >1 in lead V1) was frequently associated with ASDs.

Conclusions:

  • The presence of the crochetage sign, alongside other specific ECG criteria, is highly suggestive of atrial septal defect.
  • These ECG findings can serve as valuable non-invasive markers for diagnosing ASDs.