Abstract
Background
It is commonly recommended to catheterize or closely follow up patients with post-void
residual volumes of 150 mL or more, but the frequency of such findings in geriatric
hospitalized patients and the need for intervention are unclear.
Methods
Post-void residual volumes were measured by ultrasound examination within 14 hours
of admission in 464 patients aged 70 years or more who were hospitalized in a regional
hospital general internal medicine department. Outcome variables included the need
for an indwelling catheter and complications of urinary retention during the hospitalization.
Results
Post-void residual volumes of ≥150 mL were common (23.9%; 111/464) and had the following
distribution: 150 to 299 mL, 13.1% (61/464); 300 to 499 mL, 6.4% (30/464); and 500
mL or more, 6% (28/464). The rate of indwelling catheters was 3.2% (15/464). Results
of post-void residual volumes did not predict the need for indwelling catheters in
those without other criteria, although those with indications for indwelling catheters
had a significantly higher frequency of post-void residual volumes ≥500 mL (P < .001) compared with those without such indications.
Conclusions
We conclude that urinary retention in hospitalized geriatric patients is common, but
measurements of post-void residual volumes did not have definite clinical utility.
However, the study had limited power to determine the benefits or potential harms
of urinary catheterization for elevated post-void residual volumes.
Keywords
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Article Info
Publication History
Published online: September 02, 2014
Footnotes
Funding: None.
Conflict of Interest: None.
Authorship: All authors had access to the data and played a role in writing this manuscript.
Identification
Copyright
© 2015 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
