Surveillance of the Incidence of Urinary Retention following the use of Single Dose Spinal or Epidural Anesthesia in Srinagarind Hospital

ABSTRACT

Background: Urinary retention is a common postoperative complication associated with multifactorial risk factors such as types of anesthesia, surgery, analgesics, anticholinergics, and underlying medical conditions.Objective: The goal of this study was to surveillance of the incidence of urinary retention following the single use of spinal and epidural anesthesia in Srinagarind Hospital.Methods: A retrospective study was performed by reviewing the medical records of 1,538 surgical patients undergoing spinal or epidural anesthesia from January 1, 2005 to December 31, 2006. We defined urinary retention as occurring when intermittent urinary catheterization was performed after surgery within 24 hours. We collected variables including age, gender, type of surgery and anesthesia. Descriptive analysis was used to determine the incidence and associated risk factors.Results: The overall incidence of urinary retention after the single use of spinal and epidural anesthesia were 11.2% (95%CI, 9.7-12.9). The study showed a positive correlation between male patients with ascending age. The incidence of urinary retention after spinal anesthesia was 9.9% (95%CI 8.4-11.6). Increasing age (odds-ratio [OR] is 1.7; p-value is 0.002) was found to be the only factors significantly associated with postoperative urinary retention. Gender, type of surgery and choice of anesthesia were not found to be significantly associated with urinary retention.Conclusion: In our patient population, male patients and increasing age are at increased risk of developing urinary retention following single dose spinal or epidural anesthesia. Key words urinary retention, incidence, spinal and epidural anesthesia,