![Figure 2. The stress-velocity index (SVI; A) or VCFc-ESWS relation, and the stress-shortening index (SSI; B), or SF-ESWS relation were reported as Z-scores rather than absolute values at all concentrations. MAC 1.0 and MAC 1.5 were minimum alveolar concentration of both anesthetics adjusted for age. Normal Z-score values were -2 to +2; n = 15 for halothane (HALO), n = 15 for sevoflurane (SEVO). Data are mean +/- SD. *P < 0.05 versus Awake;[dagger]P < 0.05 HALO versus SEVO.](https://asa2.silverchair-cdn.com/asa2/content_public/journal/anesthesiology/87/4/10.1097_00000542-199710000-00012/2/12ff2.png?Expires=1716552025&Signature=WSIAJTEDh~3vVep591VLOaYo-y8D5~ljoPccHNj~X-vERA82xZmU3~3u-QfQRt-0kcsnGa0ESfB8BaUHrx5z0F661JJOJwWqpkhc6YdkItIKd1d8852GLtBB9b0naVKeXoe003SuX93PJjcWWmproUgzYoOppgL~RU-RcMS0ZvVh320BcPhxRuCxG~CLasJ1YS~UoYYPCOa9jSv8vaAFgjSVyezp3dl7IwnXk5ccil7TLsYoMwC8QrOXAThS~gpUVyybiP8gnw8O0Yj-GqWG241OSzQuySlASYapXT4yfZUnrzQm2Un9ZdAVbikBSeE8sOpOQI~VOJzaJn06WgbXTQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Figure 2. The stress-velocity index (SVI; A) or VCFc-ESWS relation, and the stress-shortening index (SSI; B), or SF-ESWS relation were reported as Z-scores rather than absolute values at all concentrations. MAC 1.0 and MAC 1.5 were minimum alveolar concentration of both anesthetics adjusted for age. Normal Z-score values were -2 to +2; n = 15 for halothane (HALO), n = 15 for sevoflurane (SEVO). Data are mean +/- SD. *P < 0.05 versus Awake;[dagger]P < 0.05 HALO versus SEVO.
