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LBBB: Difference between revisions
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==Other definitions== | ==Other definitions== | ||
The above definition of left bundle branch block is rather broad. In selecting patients for '''CRT-D therapy''' (cardiac resynchronization therapy) there has been debate whether a more specific definition should be used. In the RAFT trial the following AHA/ESC definition was used<cite>Tang</cite>: | The above definition of left bundle branch block is rather broad. In selecting patients for '''CRT-D therapy''' (cardiac resynchronization therapy) there has been debate whether a more specific definition should be used. In the RAFT trial the following AHA/ESC definition was used<cite>Tang</cite><cite>ESC-ECG</cite>: | ||
'''Complete LBBB''' | '''Complete LBBB''' | ||
#QRS duration greater than or equal to 120 ms in adults, greater than 100 ms in children 4 to 16 years of age, and greater than 90 ms in children less than 4 years of age. | #QRS duration greater than or equal to 120 ms in adults, greater than 100 ms in children 4 to 16 years of age, and greater than 90 ms in children less than 4 years of age. | ||
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#Mascioli pmid=22651702 | #Mascioli pmid=22651702 | ||
#Tang pmid=21073365 | #Tang pmid=21073365 | ||
#ESC-ECG pmid=19281930 | |||
</biblio> | </biblio> | ||
}} | }} | ||