Right Ventricle MI

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This is part of: Myocardial Infarction
Right ventricular myocardial infarction. ST elevation in lead V1 and high R/S ratio in V1.
Criteria for Right Ventricular MI [1]
  • ST-elevation >1 mm in lead V4 right
  • ST elevation >1 mm in lead V1 (sens 70% spec 100%)

Can be seen after a proximal occlusion of the RCA.

V4 right is located at the same place as lead V4, but is placed on the right side of the patient. This means it is placed under the right nipple instead of the left. This increases the sensitivity of detecting right ventricle infarcts.


  1. Kinch JW and Ryan TJ. Right ventricular infarction. N Engl J Med. 1994 Apr 28;330(17):1211-7. DOI:10.1056/NEJM199404283301707 | PubMed ID:8139631 | HubMed [RVI]