Can Different Intrathecal Drugs Affect Day Case Anal Surgery Recovery Duration?

Can Different Intrathecal Drugs Affect Day Case Anal Surgery Recovery Duration?

This study aims to compare effect of adding fentanyl or dexmetomidine on duration of motor and sensory block after spinal anesthesia with prilocaine during day case perianal surgery and whether it impact time to discharge home.

Inclusion Criteria:

• Ages 18-70
• ASA 1-3
• height <155cm or >175cm
• Day case perianal surgery

Exclusion Criteria:

• Hypersensitivity to the study drugs
• Refusal of patients.
• Patients with contraindications for spinal anesthesia
• previous voiding difficulty
• patients taking anticholinergic medications.
• emergency cases
• Patients with contraindications for day case sitting.