Figure 2. APD disparity between LANG and LWHs and oxygen consumption as a function of pacing CL.
A, APD for LWHs was significantly lower than for LANG hearts at NSR and at a pacing CL of 330 ms but APDs were not significantly different at shorter pacing CLs. Values are the mean ± SE; LANG n = 5; LWH n = 6. B, oxygen consumption (MVO2) was significantly higher in LWHs than LANG hearts (MANOVA, P < 0.01) and trended higher in both preparations with shorter pacing CLs (MANOVA, P = 0.09). Values are the mean ± SE; LANG n = 6; LWH n = 7. *Significant difference (P < 0.05) between LANG and LWHs.