Fragmented QRS complex: a novel marker of cardiovascular disease

Clin Cardiol. 2010 Feb;33(2):68-71. doi: 10.1002/clc.20709.


QRS complex fragmentation, defined as changes in QRS morphology with different RSR' patterns: additional R waves, notched S wave, or > 1R' wave, has recently been linked with various cardiac conditions and even been postulated to be predictive of outcomes in certain pathologies. The current article aims to consolidate the available information about this morphological ECG abnormality and its predictive value.

Publication types

  • Review

MeSH terms

  • Defibrillators, Implantable
  • Electric Countershock / instrumentation
  • Electrocardiography*
  • Evidence-Based Medicine
  • Heart Conduction System / physiopathology*
  • Heart Diseases / diagnosis*
  • Heart Diseases / physiopathology
  • Heart Diseases / therapy
  • Humans
  • Patient Selection
  • Predictive Value of Tests