Snare system for left ventricular lead placement in cardiac resynchronization therapy.
نویسندگان
چکیده
A 79-year-old man, previously diagnosed with ischemic heart disease and valve disease, who had undergone coronary artery bypass grafting and aortic valve replacement, was referred for implantation of a cardiac resynchronization system with defibrillator (CRT-D). He was in NYHA functional class III under optimized medical therapy, with left ventricular ejection fraction of 25%, mean QRS of 160 ms, and left bundle branch block. After the coronary sinus was accessed, venography showed the target lateral vein (Figure 1). The guide wire was introduced up to the distal portion of the vein and the left ventricular lead was advanced, but the proximal region of the vessel could not be crossed. It was decided to advance the guide wire from the lateral vein via a posterior collateral vessel up to the coronary sinus ostium (Figure 2). A snare system was introduced through a sheath via the left subclavian vein up to the atrium (Figure 3A) and the end of the guide wire was gradually pulled towards the skin surface. Thus, both ends of the
منابع مشابه
Echocardiography-Guided Left Ventricular Lead Placement for Cardiac Resynchronization Therapy: Results of the Speckle Tracking Assisted Resynchronization Therapy for Electrode Region (STARTER) Trial Saba et al: Echo-Guided LV Lead Placement in CRT
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عنوان ژورنال:
- Revista portuguesa de cardiologia : orgao oficial da Sociedade Portuguesa de Cardiologia = Portuguese journal of cardiology : an official journal of the Portuguese Society of Cardiology
دوره 34 3 شماره
صفحات -
تاریخ انتشار 2015