Additional use of Outer-Cath for LV-LP guided by Inner-Cath
In the Inner-Cath group, most of the LV-LPs were successfully guided by
Inner-Cath alone except for 2 patients, who required additional use of
an Outer-Cath for CS cannulation of the guiding sheath due to marked
enlargement of the right atrium. Preprocedural CT or MRI images may be
useful to assess not only the anatomy of the CS trunk and tributaries
but also those of both atria, predicting difficult cases of LV-LP guided
by Inner-Cath alone.