![Figure 2. Effects of ketamine on developed tension in nonfailing atrial muscle (A) and in failing atrial and ventricular muscle (B). Data are expressed as mean +/- SEM. *P < 0.05 versus vehicle control;[paragraph sign]P < 0.05 versus A-Ketamine;(section)P < 0.05 versus preceding dose. n = no. of muscles/no. of hearts; ISO = 1 micro Meter isoproterenol.](https://asa2.silverchair-cdn.com/asa2/content_public/journal/anesthesiology/88/5/10.1097_00000542-199805000-00010/2/10ff2.png?Expires=1716497224&Signature=sTg1sXxPY3JTIZsID03rG8CILy-tlI7Ikn5sgzTVw62s5OY37uiv16~vgkgcJypapSOYT0qe~rMg0VJ5WBeJtUr6pc4hjutpqxLVHLTghr7MlkZqmPsCm1sy-ziQVHHLfOwVGx~1QUzAhYQmm6eSU3tZUwElxuYhmPvam6k9YbAJgPEP7Pn7buyLOQ7nUn0z8wDc2WgIr5PCvTtiUrb7uNuDCS5yiz64pMwDN5dAznmrAJTKednH3tVeaRbKJ6TzopPFz6J~b-dThLR4NjlJGC4hrQOZd0bSylotJGbINPRVc60KJECQIX4VMyrTd3EmWm-tAWWWkrr~dBNbq5qlqA__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Figure 2. Effects of ketamine on developed tension in nonfailing atrial muscle (A) and in failing atrial and ventricular muscle (B). Data are expressed as mean +/- SEM. *P < 0.05 versus vehicle control;[paragraph sign]P < 0.05 versus A-Ketamine;(section)P < 0.05 versus preceding dose. n = no. of muscles/no. of hearts; ISO = 1 micro Meter isoproterenol.
