Fig. 3From: Dexmedetomidine versus magnesium sulfate as adjunct to general anesthesia in patients undergoing video-assisted thoracoscopyIntraoperative HR recordings expressed as mean ± SD. *P < 0.05 (compared with the baseline value), †P < 0.05 (group M compared with group C), ‡P < 0.05 (group D compared with group C), #P value < 0.05 (group D compared with group M)Back to article page