Studies from Karnataka in the Area of Hypotension Described (Comparison of intravenous bolus phenylephrine, ephedrine and mephentermine for maintenance of arterial blood pressure during spinal anaesthesia in caesarean section).

A study conducted in Karnataka, India, compared the effectiveness of phenylephrine, ephedrine, and mephentermine in maintaining arterial blood pressure during spinal anesthesia for caesarean sections. The research involved 90 patients with hypotension after subarachnoid block, and found that phenylephrine significantly increased blood pressure compared to ephedrine and mephentermine, while also reducing heart rate. The study concluded that all three drugs effectively maintained blood pressure without significant adverse effects on mother and fetus. [Extracted from the article]