II. Causes: Tall R Wave in Lead V1
- WPW Syndrome
- Right Bundle Branch Block
- Incomplete Right Bundle Branch Block (narrow QRS)
- Right Ventricular Hypertrophy
- Hypertrophic Cardiomyopathy
- Acute right ventricular dilatation in right ventricular strain pattern (e.g. massive Pulmonary Embolism)
- Posterior Myocardial Infarction
- Progressive Muscular Dystrophy
- Dextrocardia
- Misplaced precordial leads
- Normal variant in young healthy adult
- References
- Mattu (2018) Crit Dec Emerg Med 32(6):14
III. Evaluation: R Wave Progression
- Normal
- R Waves gradually increase in size from minimal to absent in lead V1 to full length of QRS in lead V6
- R Wave should be at least 3 mm in lead V3
- R Wave should be longer than the S wave in lead V4
- Poor R Wave Progression
- R Wave <3 mm in lead V3
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Related Studies
| Concepts | Finding (T033) |
| SnomedCT | 142081009, 81184002 |
| English | r wave, r waves, R wave (observable entity), R wave, R wave feature (observable entity), R wave feature |
| Spanish | onda R (entidad observable), onda R |
