Effect of Warm Fluid Distension Media in relieving Pain in outpatient Hysteroscopy: Randomized Controlled Trial

Objective: To detect the significance of using warm saline (body temperature 37C) as distension media in-office hysteroscopy in reducing pain. Methods: This randomized control trial was conducted at the Early Cancer Detection and Gynecological Endoscopy Unit, Maternity Hospital, Ain Shams University, on 100 women who underwent office hysteroscopy from 1st April 2021 to 30 October 2021. Randomly, the study participants were distributed into two groups of equal number: group (A), which included 50 patients in whom warm saline (body temperature 37C) was infused inside the endometrial cavity during hysteroscopy, and group (B), which included 50 patients in whom normal saline (room temperature) were used during hysteroscopy Results: The visual analog scale at the end of the procedure was significantly higher in group B (6.88±1.60) compared to group A (5.86±1.86) with a p-value of 0.002. While no statistically significant difference was found between groups regarding pain scores 15 minutes after the procedure. Also, patients in group A showed more statistically significant satisfaction than patients in group B, with a p-value of (p= 0.009). These findings indicated the superiority of warm saline to normal saline regarding pain relief. Conclusion: Our current data confirmed the role of warm saline distention media in decreasing pain during hysteroscopy, but the long-term affection after 15 minutes needs further evaluation.