Figure 5.

Absolute changes (%) in stellate ganglia sympathetic responses at baseline (before lidocaine injection), at lidocaine blockade of cardiac plexus, and after lidocaine washout (recovery). After lidocaine injection, all RSGS induced sympathetic changes were mitigated when compared with baseline response. For LSGS, sympathetic changes which were significantly present at baseline were blocked by lidocaine injection. At recovery, bilateral sympathetic response was reestablished. Values are given by mean ± SD. Abbreviations see Table 1.