Electrocardiographic conundrum: what is the reason of QRS axis variability?

Electrocardiographic conundrum: what is the reason of QRS axis variability?

The electrocardiograms labeled A and B belong to a 79-year-old patient admitted for syncope (2 episodes in 1 month). The electrocardiogram A, recorded on admission, shows a bifascicular block (right bundle branch block [RBBB]) associated with left posterior fascicular block (QRS axis about +115 degr...

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Veröffentlicht in:Journal of electrocardiology 2017-07, Vol.50 (4), p.526-527
Hauptverfasser: Picciolo, Giuseppe, Oreto, Lilia
Format: Artikel
Sprache:eng
Schlagworte:
Cardiovascular
Electrocardiography
Electrodes
Fainting
Heart rate
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Beschreibung
Zusammenfassung:The electrocardiograms labeled A and B belong to a 79-year-old patient admitted for syncope (2 episodes in 1 month). The electrocardiogram A, recorded on admission, shows a bifascicular block (right bundle branch block [RBBB]) associated with left posterior fascicular block (QRS axis about +115 degrees), a pattern suggesting that an intermittent possibly advanced or complete A-V block was the cause of syncope. Syncope is a temporary loss of consciousness usually related to insufficient blood flow to the brain.
ISSN:0022-0736
1532-8430
DOI:10.1016/j.jelectrocard.2017.02.006