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. Author manuscript; available in PMC: 2015 Sep 25.
Published in final edited form as: J Cardiovasc Electrophysiol. 2013 Apr 26;24(9):1008–1014. doi: 10.1111/jce.12159

Table 2.

Proportion of patients with poor (<30%) LV capture safety margin (LVSM) with different pacing strategies (LV threshold +1V and triple PW at LV threshold, 0.4ms). PW, pulse width.

LV Pacing Configurations Pacing output at LV threshold + 1 Volt
% patients LVSM < 30%		 Pacing output at triple PW (1.2ms) at LV threshold
% patients LVSM < 30%
Tip→RVcoil 21% 67%
Tip→Can 25% 53%
Tip→Ring 42% 61%
Ring→RVcoil 14% 68%
Ring→Can 14% 64%
Ring→Tip 42% 68%

Note: LV capture safety margin refers to the relationship between LV pacing output and LV threshold (see methods for details calculating LVSM).