Hernia patients urinated before surgery to help reduce postoperative single catheterization - การให้ผู้ป่วยไส้เลื่อนปัสสาวะก่อนเข้าห้องผ่าตัดลดการสวนปัสสาวะหลังการผ่าตัดได้

Abstract

Background: Urinary retention is more common in postoperative patients under spinal anesthesia. They were suffering from painful urination. Patients who are unable to urinate on their own and use a catheter to urinate have an increased risk of urinary tract infections. They are asked to urinate just before Going to the operating room no more than 1 hour. At the same time the bladder's capacity decreases, these reduce the incidence of postoperative urinary retention and urinary catheterization.

Objective: To compare the proportion of inguinal hernia patients that asked to urinate no more than 1 hour before transfer to the operating room and be catheterized in the postoperative period less than those without urinating undergoing spinal anesthesia.

Study design: A clinical trial included 108 hernia patients under spinal anesthesia at the male surgical ward in Phrae hospital from March 2014 to September 2015. Routine preoperative care in the reference group (n=54). The intervention group (n=54) were asked to urinate at ward before transfer to the operating room no more than 1 hour. However, if waiting more than 1 hour prior to surgery, they must be urinated until a surgeon or operating room becomes available. Data collected were age, comorbidities, drugs used before surgery, duration from ward to operating room, anesthesia period, duration of anesthesia until surgery completion, blood loss during surgery, the amount of oral fluid and intravenous fluid intake from NPO to the first urinate after surgery, urinate time and catheterized within 24 hours after surgery. Data were analyzed by using exact probability test and t-test.

Results: The number of patients who require urinary catheterization after surgery in the intervention group less than the reference group. The patients are asked to urinate before going to the operating room no more than 1 hour would help to reduce urinary catheterization 33 percent.

Conclusions: Urinating no more than 1 hour before surgery in patients with inguinal hernia repair under spinal anesthesia lead to reduction of postoperative urinary retention and urinary catheterization.

Keywords: Hernia patients, spinal anesthesia, urinary catheterization, urinary retention