Effect of intraurethral instillation of cooled versus room temperature lignocaine gel on pain perception during outpatient rigid cystoscopy

Background: Reducing temperature of topically applied lignocaine gel for maximal anesthesia during cystoscopy in conscious patients have yielded mixed results. This prospective randomised controlled study was undertaken to compare pain mitigating effect at 4°C versus room rigid male patients. Methods: The consists 126 consecutive (n=126) who were randomly assigned into two groups: Group 1 (control, n1=63) received 2% topical temperature, 2 (L4, n2=63) cooled prior insertion cystoscope. Pain instillation and performance measured by independent evaluator on non-graphical 100-mm visual analogue scale (VAS). Results: Mean score L4 lower (46.69±10.38) than that CONTROL (49.19±12.47), this difference statistically not significant (p value, one tail =0.11, >0.05). 14.80±6.00 control higher 17.04±6.54 with scores being =0.02, <0.05). Conclusions: With regard reducing perception cystoscopy, has no benefit over gel, however cooling 4ºC does significantly decrease urethra.