Left posterior fascicular block: Difference between revisions
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[[File:hemiblocks.png|thumb|His-Purkinje system and hemiblocks]] | [[File:hemiblocks.png|thumb|His-Purkinje system and hemiblocks]] | ||
#Right axis deviation (>110) | ==Criteria== | ||
# | Diagnostic criteria include<ref>Surawicz B, et al. AHA/ACCF/HRS recommendations for the standardization and interpretation of the electrocardiogram: part III: intraventricular conduction disturbances. Journal of the American College of Cardiology. 2009; 53(11): 976–981.</ref>: | ||
#Exclude other causes (COPD, RVH, Lat MI) | #Right axis deviation (>110) | ||
#QRS < 120ms | |||
#qR in III and AVF | |||
#rS in I and aVL | |||
==Significance== | |||
*Usually associated with disease | |||
*Isolated LPFB associated with MI<ref>Godat FJ and Gertsch M. Isolated left posterior fascicular block: a reliable marker for inferior myocardial infarction and associated severe coronary artery disease. Clin Cardiol. 1993; 16(3):220-226.</ref> | |||
#Exclude other causes of RAD (PE, COPD, RVH, Lat MI) | |||
==See Also== | ==See Also== | ||
*[[ECG (Basics)]] | *[[ECG (Basics)]] | ||
== | ==References== | ||
<references/> | |||
[[Category:Cards]] | [[Category:Cards]] | ||
Revision as of 13:41, 8 June 2015
Criteria
Diagnostic criteria include[1]:
- Right axis deviation (>110)
- QRS < 120ms
- qR in III and AVF
- rS in I and aVL
Significance
- Usually associated with disease
- Isolated LPFB associated with MI[2]
- Exclude other causes of RAD (PE, COPD, RVH, Lat MI)
See Also
References
- ↑ Surawicz B, et al. AHA/ACCF/HRS recommendations for the standardization and interpretation of the electrocardiogram: part III: intraventricular conduction disturbances. Journal of the American College of Cardiology. 2009; 53(11): 976–981.
- ↑ Godat FJ and Gertsch M. Isolated left posterior fascicular block: a reliable marker for inferior myocardial infarction and associated severe coronary artery disease. Clin Cardiol. 1993; 16(3):220-226.