Fig. 1From: To evaluate the analgesic effectiveness of bilateral erector spinae plane block versus thoracic epidural analgesia in open cardiac surgeries approached through midline sternotomyCONSORT flow diagram depicting study design. (IEC = Institutional Ethics Committee; Group ESP = erector spinae plane block group; Group TEA = Thoracic epidural analgesia group; hemodynamics include HR = heart rate and MAP = mean arterial pressure; VASR = visual analogue scale at rest and VASS = visual analogue scale during spirometry)Back to article page