Case Report| Volume 25, ISSUE 5, P308-311, May 2022

Successful implantation of left ventricular lead for a cardiac resynchronization therapy defibrillator through a persistent left superior vena cava using the anchor balloon technique

Published:December 16, 2021DOI:


      A 69-year-old woman was referred for upgrading implantable cardioverter defibrillator (ICD) to cardiac resynchronization therapy defibrillator (CRT-D) because of symptomatic heart failure due to dilated cardiomyopathy. Her electrocardiogram showed left bundle branch block and echocardiography showed severe left ventricular dysfunction. Venography confirmed the presence of persistent left superior vena cava (PLSVC), and occlusion of innominate vein and the coronary sinus (CS) ostium. We tried to insert the left ventricular (LV) lead through the PLSVC. Because the PLSVC was narrow, there was concern that insertion of the guiding catheter through the PLSVC might cause vascular damage. Therefore, we planned to implant the LV lead without a guiding catheter. Although the LV lead did not advance to the CS due to the acute angle, using a second wire (buddy wire system), the tip of the first wire was trapped by an inflated balloon delivered by a second wire (anchor balloon technique). This technique allowed us to reinforce the support of the other wire. The LV lead was easily advanced along with the fixed first wire and was delivered to the lateral vein of the CS. Thus, we successfully performed minimally invasive implantation of an LV lead through a PLSVC approach.
      <Learning objective: The double wire (buddy wire) technique and anchor balloon technique are effective options for implantation of a left ventricular lead through a persistent left superior vena cava in cardiac resynchronization therapy.>


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