Representative Cases
Three representative cases of LV-LP guided by Inner-Cath alone are shown in Figure 2. LV leads were successfully placed in different CS tributaries (posterolateral, lateral, anterolateral veins). Case 1 was a 74-year-old male with dilated cardiomyopathy (DCM). It was possible to advance an Inner-Cath deeply inside a thick posterolateral vein, that strengthened the backup force for LV lead delivery into the target vein. Case 2 was a 75-year-old male with ischemic cardiomyopathy (ICM). Although an Inner-Cath was only advanced to a proximal bend of the lateral vein, the LV lead was smoothly delivered to an adequate position. Case 3 was a 43-year-old male with ICM. The targeted anterolateral vein diverged from the CS trunk with a curve of greater than 90 degrees. Despite the Inner-Cath not being expected to provide enough backup force for LV lead delivery, the LV lead was successfully inserted into the targeted anterolateral vein without effort.