Predicting procedural pain after ureteroscopy: does hydrodistention play a role?

Area of Science:

• Urology
• Pain Management
• Surgical Outcomes

Background:

• Ureteroscopy is a common procedure for treating kidney stones.
• Post-operative pain is a significant concern for patients undergoing ureteroscopy.
• Identifying predictors of pain can help optimize patient management.

Purpose of the Study:

• To identify perioperative predictors of immediate post-ureteroscopy pain.
• To specifically evaluate the impact of hydrodistention from irrigation on pain.

Main Methods:

• Retrospective review of 131 patients undergoing ureteroscopy for calculi.
• Data collected included PACU pain scores, irrigant flow rate, patient/stone characteristics, and post-operative course.
• Statistical analysis included Spearman's rho correlation and linear regression.

Main Results:

• Younger age, higher preoperative pain scores, and post-operative stent placement were significant predictors of increased post-ureteroscopy pain.
• For every 10-year increase in age, pain decreased by 0.4 points (p=0.03).
• For every 1-point increase in preoperative pain, post-operative pain increased by 0.3 points (p=0.01). Post-operative stenting increased pain by 1.6 points.

Conclusions:

• Hydrodistention during ureteroscopy does not influence post-operative pain.
• Perioperative factors like age, baseline pain, and stent placement are key determinants of post-ureteroscopy pain.
• These findings can inform strategies to manage patient expectations and pain.