Minimally invasive Varicose veins surgery is a standard of care for dilated incompetent leg veins.  However, patients often have a low-grade postoperative pain which leads to poor patient satisfaction.

Gabapentin, an NMDA receptor modulator, has been used to modulate postoperative pain as a preemptive agent. The study is designed as a randomized control trial to evaluate prevention of postoperative pain with gabapentin.

Patients undergoing varicose vein surgery who fulfill the inclusion criteria will be enrolled in the study. Pre operative pain score will be evaluated using Numeric Rate Score. Patients will be divided into two groups by random allocation.

Group A will receive 100 mg of Gabapentin Suspension 2 hours prior to surgery.

Group B will receive a placebo 2 hours prior to surgery.

All patients will undergo surgery under spinal anesthesia. They will receive 0.5% heavy Bupivacaine (Hyperbaric) with 25mcg Fentanyl.

After surgery, patients will be assessed for post operative incidence of pain using Numeric Rate Score, sedation with Ramsay sedation score and post operative nausea and vomiting at regular intervals for first 24 hours.

Post operatively all patients will receive Tablet Paracetamol 1gm per oral every 6hrly. Break through pain will be managed with subcutaneous Inj. Morphine 0.1mg/kg for the first 24 hrs.