A Study of Frequency and Factors of Voiding Dysfunction Occurred after Epidural Anesthesia Using Bupivacaine / 대한비뇨기과학회지

ABSTRACT

PURPOSE: Epidural anesthesia(EPA) has been performed in various operations; however, it frequently induces postoperative voiding dysfunction. The frequency, duration and risk factors of voiding dysfunction occurring after EPA using long-acting anesthetics bupivacaine were evaluated. MATERIALS AND METHODS: 100 patients, who underwent orthopedic surgery (under knee, operation time patients urinated spontaneously, and had less than 100ml of post- voided residuals(PVR). Postoperatively, the patients voiding patterns were checked and urine catheterization was done, unless the patient was able to urinate spontaneously or had less than 100ml of PVR.

RESULTS:

Of the 100 patients, 32(group 1, 32%) were able to urinate spontaneously and had less than 100ml of PVR during the immediate postoperative period. However, the other 68(group 2, 68%) needed catheterization at least once. Between 2 groups, male, age over 50 years and an operation time over 2 hours were risk factors of postoperative catheterization from a univariate analysis; however, none of the patients required further catheterization until the 2nd postoperative day.

CONCLUSIONS:

The voiding dysfunction occurring after EPA using bupivacaine was concluded to be temporary and a self resolving event.