In ICD shock vectors, which configuration is described as RV coil to SVC?

In ICD shock vectors, which configuration is described as RV coil to SVC?

• A. RV coil to SVC
• B. RA coil to RV coil
• C. RV coil to LV
• D. SVC to RV coil

Answer: (A)

In ICD shock vectors, the path of the defibrillation current is defined by which coils are used as the shocking electrodes. Saying RV coil to SVC means the current flows between the right ventricular defibrillation coil and the coil placed in the superior vena cava. This pairing designates the two active electrodes and the direction of the vector, with the RV coil typically acting as the cathode and the SVC coil as the anode. The other options describe different electrode pairs (or reverse the order) and thus represent different shock vectors. Therefore, the configuration described as RV coil to SVC is the one using those two coils together.

In ICD shock vectors, the path of the defibrillation current is defined by which coils are used as the shocking electrodes. Saying RV coil to SVC means the current flows between the right ventricular defibrillation coil and the coil placed in the superior vena cava. This pairing designates the two active electrodes and the direction of the vector, with the RV coil typically acting as the cathode and the SVC coil as the anode. The other options describe different electrode pairs (or reverse the order) and thus represent different shock vectors. Therefore, the configuration described as RV coil to SVC is the one using those two coils together.