1. Interface pressure measurement during surgery: a comparison of four operating table surfaces
- Author
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van Overbeeke J, van der Werken C, and Keller Bp
- Subjects
Operating Rooms ,medicine.medical_specialty ,Nursing (miscellaneous) ,Supine position ,business.industry ,Peak pressure ,Beds ,Equipment Design ,Surgical procedures ,Operating table ,Surgery ,Lithotomy position ,Inflatable ,Materials Testing ,Interface pressure ,Pressure ,Humans ,Medicine ,Fundamentals and skills ,Prospective Studies ,Support surface ,business - Abstract
Objective: To compare the pressure-reducing and pressure-redistributing characteristics of four operating room (OR) table mattresses using interface pressure measurements, in two positions adopted for surgical procedures. Method: Support surfaces were randomly assigned to 80 patients. These were: an overlay pad filled with fibres (the standard OR mattress), a custom-made viscoelastic polyurethane foam mattress, an inflatable mattress with air-filled cells and a fluid mattress. An XSENSOR full-body pressure-mapping pad was used to record interface pressures of 40 patients in the supine position and 40 patients in the lithotomy position. Measurements were analysed for peak pressure, peak pressure index, total contact surface area and the occurrence of a significant increase in interface pressure during the surgical procedure. Results: The highest interface pressures were measured on the standard mattress, in both the supine and lithotomy position. Overall, the fluid mattress showed the best pressure-reducing and pressure-redistributing capacities. Conclusion: As long as no reference values are available for interface pressures under which no pressure-related damage will occur, clinical testing of OR table surfaces is still necessary. Declaration of interest: The test mattresses were provided free of charge and the companies provided a contribution of €2000 each for the rental of the pressure-mapping system. None of the authors had a financial interest in or link with the companies.
- Published
- 2006