Cardiovascular Medicine Book

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QRS Complex

Aka: QRS Complex, QRS Duration
  1. See Also
    1. R Wave
  2. Normal findings: Duration
    1. Limb leads (I, II, III): 0.05 to 0.10
    2. Precordial leads (V1 to V6): 0.06 to 0.12
  3. Prolonged QRS Complex (over 0.12)
    1. Abnormal interventricular conduction
  4. Low QRS amplitude (<5 mm in limb leads)
    1. Diffuse Coronary Artery Disease
    2. Congestive Heart Failure
    3. Pericardial Effusion
    4. Myxedema
    5. Amyloidosis
    6. Obesity
    7. Emphysema (?OPD)
    8. Anasarca
  5. High QRS amplitude
    1. Evaluate for Left Ventricular Hypertrophy

QRS complex feature (C0429097)

Definition (NCI) QRS complex is a portion of the EKG tracing that represents depolarization of the ventricular myocardium. Normally the ventricles are activated simultaneously.
Concepts Finding (T033)
SnomedCT 142119004, 164949005
Dutch QRS-complex
French Complexe QRS
German QRS-Komplex
Italian Complesso QRS
Portuguese Complexo QRS
Spanish Complejo QRS, QRS complex, característica del complejo QRS (entidad observable), característica del complejo QRS, complejo QRS (entidad observable), complejo QRS
Japanese ＱＲＳ群, QRSｸﾞﾝ
English QRS complex (observable entity), qrs complex, QRS complex, QRS complex feature (observable entity), QRS complex feature, EKG QRS Complex, QRS Complex
Czech QRS komplex
Hungarian QRS komplex
Sources
Derived from the NIH UMLS (Unified Medical Language System)


QRS complex duration (observable entity) (C0429025)

Concepts Organism Attribute (T032)
SnomedCT 251208001
English QRS complex duration (observable entity), QRS duration, QRS complex duration
Spanish duración del complejo QRS (entidad observable), duración del complejo QRS
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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