Rare diseases · Sign or symptom

Increased QRS voltage

HP:0025075

What it means

Elevation of the voltage (height) of the QRS complex. There are several criteria in use, but the most common is the Sokolov-Lyon criterion (S wave depth in V1 + tallest R wave height in V5-V6 greater than 35 mm).

Rare diseases that can present with this1

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Increased QRS voltage

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This page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.