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Robinson J (2003) Deflation of a Foley catheter balloon. Nursing Standard. 17, 27, 33-38. Date of acceptance: November 22 2002.
Abstract
Aim To investigate the changes in urethral and suprapubic catheter balloons following deflation and removal.
Method Observations were made on a selection of catheter materials, using three different deflation methods. Measurements were recorded before inflation and following deflation of catheter balloons.
Results The analysis identified that before inflation all catheter balloons were 1-2mm wider than the Charriere size. Following balloon inflation, five balloons were unchanged in appearance, four were slightly misshapen and the Coude balloon inflated at the side of the catheter shaft.
Conclusion The study has shown that manual syringe aspiration results in the formation of creases and ridges, and an increase in catheter balloon diameter size on deflation. Self-syringe aspiration should not be used when deflating catheter balloons. It does not, however, cause the balloon membrane to collapse or become deformed.
Key words
* Catheters
* Urinary catheters
These key words are based on the subject headings from the British Nursing Index. This article has been subject to double-blind review.
CATHETERISATION HAS an important role in patient care and management for a variety of reasons, but where possible it should be avoided (Pellowe et al 2001, Pratt et al 2001). Having a catheter in situ, whether urethral or suprapubic, incurs its own problems (Evans and Feneley 2000, Lowthian 1989, 1998). Yet one area where there has been little research or investigation is in the changes that occur to the Foley indwelling catheter balloon once it has been deflated.
The most common way to deflate catheter balloons is by manual syringe aspiration, to remove the water from the catheter balloon. Using this method causes the balloon membrane to collapse and deform. This then results in crease and ridge formation occurring to the deflated balloon area. Another method of deflation is by self-syringe aspiration, as suggested by Semjonow et al (1995). However, self-syringe aspiration, as discussed later, is not recommended; it should not be used because there is no research to support the use of this method.
New versus old catheter balloon
Inspection of a new catheter balloon area, before inflation, shows that it is fairly flat and smooth. At insertion,...