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Postoperative bladder catheterization based on individual bladder capacity: a randomized trial.

Tammo A Brouwer1, Peter F W M Rosier, Karel G M Moons

  • 1From the Department of Anesthesiology, Medical Center Leeuwarden, Leeuwarden, The Netherlands (T.A.B.); Department of Functional Urology, University Medical Center Utrecht, Utrecht, The Netherlands (P.F.W.M.R.); Division of Perioperative Care and Emergency Medicine, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands (K.G.M.M.); Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands (N.P.A.Z.); Department of Pharmacotherapy and Pharmaceutical Care, University of Groningen, Groningen, The Netherlands, and Department of Clinical Pharmacy and Pharmacology, Medical Center Leeuwarden, Leeuwarden, The Netherlands (E.N.v.R.); and Division of Anesthesiology, Intensive Care, and Emergency Medicine, University Medical Center Utrecht, Utrecht, The Netherlands (C.J.K.).

Anesthesiology
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PubMed
Summary
This summary is machine-generated.

Using a patient's maximum bladder capacity (MBC) instead of a fixed 500 ml threshold for bladder catheterization significantly reduces catheterization rates. This approach is safe and effective in preventing postoperative urinary retention in surgical patients.

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Area of Science:

  • Urology
  • Surgical Patient Care
  • Anesthesiology

Background:

  • Postoperative urinary retention can lead to long-term lower urinary tract dysfunction.
  • Timely bladder catheterization is crucial for prevention.
  • Current practice often uses a fixed 500 ml threshold for catheterization.

Purpose of the Study:

  • To investigate if using a patient's maximum bladder capacity (MBC) reduces postoperative bladder catheterization incidence.
  • To compare the efficacy of MBC versus a fixed 500 ml threshold.

Main Methods:

  • A randomized, single-blinded trial involving 1,840 surgical patients under general or spinal anesthesia.
  • Patients were assigned to either an MBC threshold group or a 500 ml fixed threshold group.
  • Bladder volumes were measured preoperatively (MBC at home) and postoperatively via ultrasound.

Main Results:

  • The incidence of bladder catheterization was lower in the MBC group (8.6%) compared to the 500 ml group (11.8%).
  • This reduction was statistically significant (relative risk 0.73, P = 0.025).
  • No adverse events were reported in either group.

Conclusions:

  • Utilizing a patient's maximum bladder capacity as a threshold for bladder catheterization is a safe and effective strategy.
  • This method significantly decreases the need for postoperative bladder catheterization.
  • It offers a personalized approach to managing bladder function after surgery.