Overview Norepinephrine Prophylaxis for Postspinal Anesthesia Hypotension Status: Completed Trial end date: 2020-06-30 Target enrollment: Participant gender: Summary The purpose of this study is to investigate the suitable infusion dose of norepinephrine for prophylaxis against post-spinal anesthesia hypotension. Phase: N/A Details Lead Sponsor: General Hospital of Ningxia Medical UniversityTreatments: Norepinephrine