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Incomplete right bundle branch block

Right bundle branch block (RBBB) represents an abnormality in the intraventricular electrical conduction system of the human heart, generating enlarged QRS and modified vectors on the electrocardiogram (ECG). Incomplete RBBB (IRBBB) is defined by (i) QRS duration between 110 and 120 ms in adults; (ii) rsr, rsR, or rSR in leads V1 or V2. The R or r deflection is usually wider than the initial R wave. In a minority of patients, a wide and often notched R wave pattern may be seen in leads V1 and/or V2; (iii) S wave of greater duration than R wave or greater than 40 ms in leads I and V6 in adults; and (iv) Normal R peak time in leads V5 and V6 but greater than 50 ms in lead V1. The first 3 criteria should be present to make the diagnosis. When a pure dominant R wave with or without a notch is present in V1, criterion 4 should be satisfied.

HPO HP:6000313

Resumé

Kropssystem
Abnormality of the cardiovascular system

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Læs de gener, der er knyttet til Incomplete right bundle branch block, og resten af dit genom, med én test.

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2 gener knyttet til Incomplete right bundle branch block

Ændringer i disse gener forårsager sjældne tilstande, hvor Incomplete right bundle branch block ses. De fleste med dette træk har ingen af disse tilstande, og et gen på denne liste siger intet om nogens eget genom.

GenHvor ofte det sesTilstande
SOX17SRY-box transcription factor 17Nogle gange (5–29 %)I 1 tilstand
TNNT2troponin T2, cardiac typeNogle gange (5–29 %)I 1 tilstand

Hvor hyppigt det ses hos personer med en af genets tilstande, den hyppigste værdi på tværs af dem, sådan som Human Phenotype Ontology registrerer det. Disse sider beskriver egenskaber og den forskning, der ligger bag dem. De er ikke en diagnose, og hvis du har spørgsmål om symptomer, bør du spørge en læge eller genetisk rådgiver.

Bredere træk

Bundle branch block

Hvor oplysningerne kommer fra

  • Human Phenotype Ontology, udgivelse 2026-09-01: egenskaben, dens navne, definition og de gener, der er knyttet til den. Læs mere på hpo.jax.org.
  • Dataudgivelse 2026.10.21-777c9289.

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