Draining Urinary Sediments Through Conventional Eyelet Catheters and New Intermittent Micro-Hole Zone Catheters.
Per Bagi, Betina Suldvart, Christian Kamp Nielsen and 3 others
PMID 42385025WHAT IT FOUND
Clear urine from healthy volunteers and intermittent catheter users drained through both eyelet and micro-hole catheters.
In cloudy urine with visible particles, micro-hole catheters needed wiggling in 10 samples and failed in 6 eyelet-drained samples.
Key findings
01All 60 urine samples from healthy volunteers and intermittent catheter users were clear and drained through both catheter types without blockage.
02Four cloudy urine samples without visible particles drained through both catheter types without blockage.
03Of 20 cloudy urine samples with visible particles, 2 passed both catheters, 10 passed eyelet catheters but needed wiggling through micro-hole catheters, 6 passed eyelet catheters but not micro-hole catheters, and 2 blocked both.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The complicated urine drainage tests were done in a laboratory cup, not in a person's bladder. Only 20 samples with visible particles were tested, and they came from a narrow group of patients with bowel-augmented bladder, continent cutaneous pouch, neobladder, or urostomy/augmented bladder. For samples with visible particles, automated microscopy could not measure particle size because the urine was too opaque. The clear urine samples were collected on different days for the two catheters, so the study could not compare sediment numbers from the same collection by device. The study reported catheter drainage in the cup, not blockage, infection, trauma, comfort, or other patient outcomes during real catheterization. The supplied methods do not describe random allocation or blinding for the drainage comparison.
Declared interests
The supplied text does not report funding or conflicts of interest. The catheters tested were from Coloplast A/S and Hollister Inc., and samples were analysed at Coloplast's Pre-Clinical Laboratory.
The easy way to misread this
Do not conclude that micro-hole catheters are better for sediment drainage. In cloudy urine with visible particles, 10 samples needed wiggling and 6 did not pass through micro-hole catheters, while 2 samples blocked both catheter types, and the study did not test patient outcomes.