An evaluation of the efficacy of different doses of ketamine for treatment of catheter-related bladder discomfort in patients underwent urologic surgery: a prospective, randomized, placebo-controlled, double-blind study

Safavi, M.; Honarmand, A.; Atari, M.; Chehrodi, S.; Amoushahi, M.

Urology Annals 6(1): 51-56

2014


ISSN/ISBN: 0974-7796
PMID: 24669123
DOI: 10.4103/0974-7796.127030
Accession: 051485703

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Abstract
Urinary catheterization might have catheter-related bladder discomfort (CRBD). We evaluated the efficacy of different doses of ketamine in comparison to placebo as a treatment of CRBD. One hundred twenty patients who were candidate for urological surgery requiring catheterization of the urinary bladder were randomly divided into four groups including 30 patients in each. Group I received normal saline, Group II received ketamine 150 μg/kg/iv, Group III received ketamine 200 μg/kg/iv, and Group IV received 250 μg/kg/iv in the equal volume of 2 mL. The patients were observed for each 15 min in the recovery room and in the 1 h, 2 h, 6 h, 12 h, and 24 h after discharging from it for severity of CRBD and pain, levels of sedation, and post-operative nausea and vomiting. The severity of CRBD at the recovery room was significantly reduced in Group III and Group IV after 24 h compared with Group I and Group II (P < 0.05). There was no significant difference between Group III and Group IV in this respect. The median sedation level was significantly lower in 15 min and 30 min after arrival to the recovery in Group III and Group IV compared with Group I and Group II (P < 0.05). There was no significant difference between Group III and Group IV in this regard. Ketamine 200 μg/kg/iv had similar efficacy with ketamine 250 μg/kg/iv in reducing the severity of CRBD without occurring significant side effect.