“…Characteristics of the trials are presented in Table 1 . In regard to the nature of the cesarean section, it was elective, elective or emergent, and not specified in 30 [ 10 , 26 , 29 , 31 – 35 , 37 , 38 , 45 , 48 – 51 , 53 – 58 , 60 – 62 , 64 – 69 ], six [ 11 , 30 , 40 – 43 ], and 11 [ 25 , 27 , 28 , 36 , 39 , 44 , 46 , 47 , 52 , 59 , 63 ] trials, respectively. The mode of anesthesia was spinal, combined spinal-epidural (CSE), epidural, or general anesthesia in 27 [ 10 , 11 , 29 , 32 – 35 , 37 – 39 , 41 – 44 , 46 , 48 , 50 , 54 – 56 , 60 – 64 , 68 , 69 ], two [ 51 , 57 ], three [ 49 , 66 , 67 ], and 11 [ 25 – 28 , 30 , 31 , …”