Preventive effect of tamsulosin on postoperative urinary retention

Mohammadreza Mohammadi-Fallah, Sepehr Hamedanchi, Ali Tayyebi-Azar, Mohammadreza Mohammadi-Fallah, Sepehr Hamedanchi, Ali Tayyebi-Azar

Abstract

Purpose: To investigate the prophylactic effect of Tamsulosin, a super-selective alpha-1a adrenergic blocking agent, on the development of urinary retention in men undergoing elective inguinal herniorrhaphy.

Materials and methods: From May 2010 through November 2011, a total of 80 males who underwent elective inguinal herniorrhaphy in a university hospital were included in this study. Patients were randomly assigned to one of two groups. In group one (control), the patients were given two doses of placebo orally, 6 hours before surgery and 6 to 12 hours after surgery. Patients in group two were given 0.4 mg of Tamsulosin orally in the same manner as the placebo. All patients were closely followed for 24 hours post-operatively, and any voiding difficulties or urinary retention was recorded.

Results: There were 40 patients in group one (control group) and 40 patients in group two (Tamsulosin group). The patients' mean age was 64 years. In group one, 6 patients and in group two, 1 patient required catheterization. Thus, 15% of patients in group I and 2.5% of patients in group II had urinary retention. The difference in the requirement for catheterization was statistically significant (p=0.04). The technique of herniorrhaphy, the side of the body in which the hernia was located, the type of anesthesia, the duration of the surgery, and the severity of pre-operative urinary symptoms had no significant effect on the incidence of urinary retention.

Conclusions: The use of perioperative Tamsulosin represents an effective strategy to reduce the risk of post-operative urinary retention following inguinal herniorrhaphy.

Keywords: Adrenergic alpha-Antagonists; Herniorrhaphy; Tamsulosin; Urinary retention.

Conflict of interest statement

The authors have nothing to disclose.

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