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ECG voltage criteria for LVH

Calculates the voltage and product criteria of the documented edition from a calibrated ECG. Absence of the criteria does not exclude left ventricular hypertrophy.

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Check the population, units and version. The result shows the formula or classification; it does not make an automatic treatment decision.

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Method · Limits of application

Sokolow–Lyon 1949; Cornell 1987; Cornell product (LIFE)

Output is the number of positive criteria, not an LVH diagnosis or a statement that LVH is absent. The product uses the LIFE convention of +6 mm in women; other versions use different conventions.

Conditions of use

Check the conditions of application before calculating. The result presents the documented formula or criteria; it does not establish a diagnosis or prescription.

Scope of this implementation

Output is the number of positive criteria, not an LVH diagnosis or a statement that LVH is absent. The product uses the LIFE convention of +6 mm in women; other versions use different conventions.

Parameters in this edition

Sex
S wave in V1 · mm
R wave in V5 · mm
R wave in V6 · mm
R wave in aVL · mm
S wave in V3 · mm
QRS duration (for the Cornell product) · ms
ECG with 10 mm/mV calibration and measurements checked?

Sources and documentation

Method version

Sokolow–Lyon 1949; Cornell 1987; Cornell product (LIFE)

Formula and criteria

Sokolow–Lyon: SV1 + max(RV5,RV6) ≥ 35 mm. R aVL ≥ 11 mm. Cornell: RaVL + SV3 > 28 mm in men or > 20 mm in women. Cornell product: (Cornell + 6 mm in women) × QRS > 2440 mm·ms.

Population and limitations

Output is the number of positive criteria, not an LVH diagnosis or a statement that LVH is absent. The product uses the LIFE convention of +6 mm in women; other versions use different conventions.

Synthetic cases checked (6)

Synthetic cases for checking the implementation, with no patient data.

Case 1

reference-001

Inputs

Sex: Female
S wave in V1: 15 mm
R wave in V5: 20 mm
R wave in V6: 18 mm
R wave in aVL: 10 mm
S wave in V3: 14 mm
QRS duration (for the Cornell product): 100 ms
ECG with 10 mm/mV calibration and measurements checked?: Yes

{
  "sexo": "F",
  "sv1": 15,
  "rv5": 20,
  "rv6": 18,
  "ravl": 10,
  "sv3": 14,
  "qrs": 100,
  "contexto": "1"
}

Expected result

{
  "sl": 35,
  "cv": 24,
  "cp": 3000,
  "n": 3
}

Actual result

{
  "sl": 35,
  "cv": 24,
  "cp": 3000,
  "n": 3
}

Case 2

reference-002

Inputs

Sex: Female
S wave in V1: 0 mm
R wave in V5: 0 mm
R wave in V6: 0 mm
R wave in aVL: 10 mm
S wave in V3: 10 mm
QRS duration (for the Cornell product): null ms
ECG with 10 mm/mV calibration and measurements checked?: Yes

{
  "sexo": "F",
  "sv1": 0,
  "rv5": 0,
  "rv6": 0,
  "ravl": 10,
  "sv3": 10,
  "qrs": null,
  "contexto": "1"
}

Expected result

{
  "sl": 0,
  "cv": 20,
  "cp": null,
  "n": 0
}

Actual result

{
  "sl": 0,
  "cv": 20,
  "cp": null,
  "n": 0
}

Case 3

reference-003

Inputs

Sex: Male
S wave in V1: 0 mm
R wave in V5: 0 mm
R wave in V6: 0 mm
R wave in aVL: 10 mm
S wave in V3: 18 mm
QRS duration (for the Cornell product): null ms
ECG with 10 mm/mV calibration and measurements checked?: Yes

{
  "sexo": "M",
  "sv1": 0,
  "rv5": 0,
  "rv6": 0,
  "ravl": 10,
  "sv3": 18,
  "qrs": null,
  "contexto": "1"
}

Expected result

{
  "sl": 0,
  "cv": 28,
  "cp": null,
  "n": 0
}

Actual result

{
  "sl": 0,
  "cv": 28,
  "cp": null,
  "n": 0
}

Case 4

reference-004

Inputs

Sex: Female
S wave in V1: 0 mm
R wave in V5: 0 mm
R wave in V6: 0 mm
R wave in aVL: 10 mm
S wave in V3: 8.4 mm
QRS duration (for the Cornell product): 100 ms
ECG with 10 mm/mV calibration and measurements checked?: Yes

{
  "sexo": "F",
  "sv1": 0,
  "rv5": 0,
  "rv6": 0,
  "ravl": 10,
  "sv3": 8.4,
  "qrs": 100,
  "contexto": "1"
}

Expected result

{
  "sl": 0,
  "cv": 18.4,
  "cp": 2440,
  "n": 0
}

Actual result

{
  "sl": 0,
  "cv": 18.4,
  "cp": 2440,
  "n": 0
}

Case 5

reference-005

Inputs

Sex: Female
S wave in V1: 0 mm
R wave in V5: 0 mm
R wave in V6: 0 mm
R wave in aVL: 10 mm
S wave in V3: 8 mm
QRS duration (for the Cornell product): 100 ms
ECG with 10 mm/mV calibration and measurements checked?: Yes

{
  "sexo": "F",
  "sv1": 0,
  "rv5": 0,
  "rv6": 0,
  "ravl": 10,
  "sv3": 8,
  "qrs": 100,
  "contexto": "1"
}

Expected result

{
  "sl": 0,
  "cv": 18,
  "cp": 2400,
  "n": 0
}

Actual result

{
  "sl": 0,
  "cv": 18,
  "cp": 2400,
  "n": 0
}

Case 6

reference-006

Inputs

Sex: Female
S wave in V1: 0 mm
R wave in V5: 0 mm
R wave in V6: 0 mm
R wave in aVL: 11 mm
S wave in V3: 0 mm
QRS duration (for the Cornell product): null ms
ECG with 10 mm/mV calibration and measurements checked?: Yes

{
  "sexo": "F",
  "sv1": 0,
  "rv5": 0,
  "rv6": 0,
  "ravl": 11,
  "sv3": 0,
  "qrs": null,
  "contexto": "1"
}

Expected result

{
  "sl": 0,
  "cv": 11,
  "cp": null,
  "n": 1
}

Actual result

{
  "sl": 0,
  "cv": 11,
  "cp": null,
  "n": 1
}

Source for the active edition

Okin et al. · LIFE 2004 · Cornell product convention

Additional reading and history

Identifier: hve-no-ecg

Original clinical content: Brazilian Portuguese.

Code and reproducibility

This tool’s code on GitHub

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Sources, version and reproduction instructions

The code tests are technical checks. Clinical approval and professional translation review are recorded separately.

Relationship with cancer research

General context — relationship to be defined

A resource for general clinical contexts. This edition does not assign a specific oncological relationship; selecting it for a study requires a justified question, population and purpose.