title: Pain during rigid cystoscopy: a prospective randomized controlled study comparing the benefit of cooled and room temperature lignocaine gel.
abstract: Lignocaine gel is an established topical anesthetic agent for cystoscopy in awake patients. We performed a prospective randomized study to evaluate whether cooling the lignocaine gel to 4 degrees C decreases the pain perception during cystoscopy in male patients. Sixty consecutive male patients undergoing rigid cystoscopy were randomized into two groups. Group I received 15 ml of 2% lignocaine hydrochloride gel at 4 degrees C and group II received the same agent at room temperature (20 degrees C). Cystoscopy was performed and pain perceived during the procedure was assessed by independent evaluator using Wong-Baker FACES pain scale rating chart. The mean pain score in group I was lower (4.32 +/- 1.70) than that in group II (5.28 +/- 1.99), but this difference was statistically not significant (p=0.191). However significantly greater percentage (84% Vs 52%) of patients with cooled lignocaine wished to have same anesthetic in future for similar procedure (p=0.032). In conclusion, cooling the lignocaine gel to 4 degrees C does not decrease the pain perception during rigid cystoscopy in male patients.
authors: Department of Surgery, Nepal Medical College Teaching Hospital, Kathmandu, Nepal. kkbhomi@hotmail.com
authors: K K
authors: KK
authors: Bhomi
authors: S
authors: S
authors: Rizal
authors: M
authors: M
authors: Pradhan
authors: A
authors: A
authors: Rijal
authors: C L
authors: CL
authors: Bhattachan
mesh_terms: D000287:Administration, Topical; D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage*; D003558:Cystoscopy; D005782:Gels; D006801:Humans; D008012:Lidocaine / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000517:prevention & control*; D011446:Prospective Studies; D013696:Temperature; D055815:Young Adult
chemical_list: D000779:Anesthetics, Local; D005782:Gels; D008012:Lidocaine