Urinary catheter blockage depends on urine pH, calcium and rate of flow.
Urinary catheters tend to block when biofilm from urease-producing organisms build up on the catheter surface. This is a locally-occurring process that influences and is influenced by the composition of the urine. In this work we relate urine pH and calcium to catheter blockage and suggest how to re...
| Publicado en: | Spinal Cord Vol. 35; no. 8; pp. 521 - 526 |
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| Autores principales: | , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Springer Nature
Aug1997
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=107349693&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 107349693 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13624393 DZQ jtl: Spinal Cord issn: 13624393 maglogo: Y pubinfo: dt: Aug1997 vid: 35 iid: 8 pid: 2579 pub: Springer Nature place: Dordrecht, <Blank> artinfo: ui: 107349693 107349693 1997050722 10.1038/sj.sc.3100424 NLM9267917 107349693 ppf: 521 ppct: 5 formats: tig: atl: Urinary catheter blockage depends on urine pH, calcium and rate of flow. aug: au: Burr RG Nuseibeh IM affil: National Spinal Injuries Centre, Stoke Mandeville Hospital, Aylesbury, Buckinghamshire, HP21 8AL, England sug: subj: Catheter Occlusion Catheters, Urinary In Vivo Studies Urinalysis Hydrogen-Ion Concentration Step-Wise Multiple Regression Multivariate Analysis of Variance T-Tests Mann-Whitney U Test Descriptive Statistics Discriminant Analysis Chi Square Test Correlation Coefficient Calcium Analysis Fluid Therapy Citrates Therapeutic Use Adolescence Adult Middle Age Aged Male Female Human Adolescent: 13-18 years Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Male Female ab: Urinary catheters tend to block when biofilm from urease-producing organisms build up on the catheter surface. This is a locally-occurring process that influences and is influenced by the composition of the urine. In this work we relate urine pH and calcium to catheter blockage and suggest how to reduce the rate of encrustation. Sixty patients with indwelling urinary catheters were studied, 26 of them being troubled by frequent blockage of their catheters, 34 of them not. A series of small urine samples were collected during a 24 h period. Urinary pH and calcium concentration were combined into discriminant functions designed to separate Blockers from Non-blockers and achieved a 95% correct classification. The results indicate that a high and uniform rate of fluid intake is mandatory for the patient with a tendency for catheter blockage. Excessive total fluid intake may be avoided by attention to uniformity. Other avoidable risk factors include: excess dietary calcium from certain protein supplements and antacids; excess dietary magnesium from certain beverages and antacids; alkali from effervescent tablets; excess dietary citrate from some fruit juices and cordials; intermittent dehydration from alcohol ingestion. Less tractable risk factors include infection of the urinary tract with urease-positive organisms, hypercalciuria of immobilisation, hyperhydrosis and postural oliguria. The processes involved in catheter encrustation and blockage provide a model for the formation of calculi in spinal cord injured patients. Therefore the above considerations may also be relevant to the management of stone disease in paraplegic and tetraplegic patients. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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