Parenterally Administered Moderate Sedation and Paracervical Block Versus General Anesthesia for Hysteroscopic Polypectomy: A Pilot Study Comparing Postoperative Outcomes

STUDY OBJECTIVE: To compare parenterally administered moderate sedation and paracervical block versus general anesthesia during day-case operative hysteroscopy for polypectomy in terms of patients' postoperative pain perception, operating time, and postoperative drug administration. DESIGN: A pilot study (Canadian Task Force classification I). SETTING: A university hospital. PATIENTS: Women undergoing hysteroscopic polypectomy procedures (N = 56). INTERVENTIONS: Hysteroscopic polypectomy with general anesthesia or moderate parenteral sedation and paracervical block. MEASUREMENTS AND MAIN RESULTS: The patients were divided into 2 groups: 26 underwent general anesthesia (group 1), and 30 were submitted to moderate parenteral sedation and a paracervical block (group 2). General anesthesia was induced with the laryngeal mask airway with propofol (1% 1-2.5 mg/kg) and fentanyl (1-2 μg/kg) and maintained with an infusion of propofol (2% 3-5 mg/kg/h). After the procedure, patients in the general anesthesia group received postoperative analgesic medication with paracetamol (20 mg/kg) and ketorolac (0.6 mg/kg) or tramadol (2-3 mg/kg). The group receiving moderate parenterally sedation and a paracervical block received a paracervical block with mepivacaine (1% 10 mL) and lidocaine (2% 10 mL) and received fentanyl (1 μg/kg) and propofol (1% 1-3 mg/kg/h) maintaining spontaneous breathing. A blind observer recorded the operative time and the discomfort of patients using a 4-step scale (0-3). The postoperative pain assessment was performed 3 hours after the procedure with a self-administered validated tool, the Brief Pain Inventory. We found that women receiving moderate parenteral sedation and a paracervical block perceived significantly less pain in daily activity (p < .001), walking (p < .001), daily work (p < .001), relations with others (p = .007), sleep (p < .001), and pain contrasting enjoyment of life (p < .001). The total amount of time spent in the operating room in group 2 was significantly lower than in group 1 (p < .014). CONCLUSION: Moderate sedation plus a paracervical block for operative hysteroscopy is associated with reduced pain perception and a shorter operative time.