Discussion
vasospasm
VASOSPASM, GESTATIONAL HYPERTENSION
The main finding of this study was that subcutaneous nitroglycerin increased the first attempt success rate of radial artery cannulation in women with gestational hypertension undergoing cesarean section. The relatively large diameter of the radial artery in the subcutaneous nitroglycerin group and improvement in palpability of radial pulse may contribute to the improved success rate, which is consistent with previous studies [Successful radial artery cannulation was challenging for pregnant women with gestational hypertension. First, the anesthesiologists have less experience in ultrasound-guided arterial cannulation in this obstetrics and gynecology hospital. Second, the main challenge for successful radial artery catheterization in patients was the small diameter of the artery [Up to 57% of cases would experience temporary vasospasm immediately after puncture of radial artery [Different approaches, such as local [According to previous studies [