Atropine or Ephedrine Pretreatment for Preventing Bradycardia in Elderly Patients
Conditions
- Anesthesia, Spinal
- Dexmedetomidine
- Bradycardia
Interventions
- DRUG: normal saline
- DRUG: atropine 0.5mg
- DRUG: ephedrine 8mg
Sponsor
Ajou University School of Medicine