Video-assisted thoracoscopic thymectomy vs "maximal" thymectomy for myasthenia gravis.

state, "there were no changes in the control group." This suggests that data of the control group were not compared with the data of the study groups, but data of different time points were compared within the group. It is therefore of interest that the number of five patients is too low, and with nonparametric data it is hard to dem¬ onstrate any statistically significant change. Additionally, it is known that the vasodilator properties of dopexamine can induce a fall in BP, which can be corrected by the addition of extra fluids.1,2 However, the authors do not describe the fluid requiiements of the patients during the study group, although in our opinion, these data are of interest. Finally, we assume the given doses were in micrograms not mil¬ ligrams as stated, and that not all data in the tables were "after dopexamine."