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Patient Warming - Clinical References

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Inditherm patient warming products are a cost effective method of preventing hypothermia during anaesthesia and reducing the incidence of pressure ulcers following surgery

Clinical Benefits of Warming

There is widespread clinical evidence of the benefits of patient warming for the prevention of hypothermia. These studies are wide ranging, covering surgery and anaesthesia, recovery room (PACU), the pre-operative period, emergency department, patient transport, and more (Harper, et al.; Scheck et al.; Wong et al.; Kumar, et al.). The clinical evidence shows wide ranging benefits such as reduced morbidity and mortality, less time in recovery, lower infection rates, reduced incidence of pressure sores and ulcers, lower blood product usage, shorter hospital stays and large cost savings.

Performance Evaluation

In a randomized clinical trial Baxendale et al. evaluated the performance of the Inditherm mattress and a forced air patient warming device during major abdominal and orthopaedic surgery. It was concluded that the Inditherm system is able to prevent significant inadvertent hypothermia during major surgery and has comparable results with forced-air warming throughout.

This research was undertaken with the Inditherm mattress set at the minimum temperature of 37ºC and the air-warming device set at the maximum of 43ºC. Results also showed that the Inditherm system out-performed air warming in the critical first hour.

Pressure Relief & Prevention of Sores and Ulcers

During research on the pressure-relieving properties of an intra-operative warming device, Baker & Leaper concluded that with its inherent pressure-relieving properties, the Inditherm system can help prevent pressure ulcers during the intra-operative period and may offer superior pressure relief compared with commonly used gel pads. Results showed that the Inditherm mattress provided better or equivalent pressure relief when compared with operating table mattress alone or with gel pad.

Pre-Operative Warming & Wound Infection Reduction

In a randomized controlled trial on pre-operative warming in the incidence of wound infection after clean surgery, Melling et al. found that warming patients prior to 'clean' surgery appears to aid the prevention of post-operative wound infection. It was concluded that given the fiscal and humanitarian cost of wound infection, patient warming in the pre-operative stage may be a cost- efficient method of controlling expenditure. Similarly, Kurz et al. showed a much lower infection rate in normothermic patients (6% infection) compared with hypothermic patients (19% infection)

Accident & Emergency Hypothermia Re-warming

Research undertaken by Munns et al. using Inditherm Patient Warming Systems in the Accident & Emergency Department of St. Thomas' Hospital, London, concluded that the Inditherm System is an effective method of re-warming patients with hypothermia presenting to the Emergency Department.

Maintaining Normothermia during Surgery

The value of warming in medical practice has been known for thousands of years in treating wounds and for pain relief and, more recently, it has been established that avoidance of hypothermia by systemic warming can reduce blood loss during surgery and post-operative infections.

It has been recognised that hypothermia in the perioperative period is common, and many other associated complications can be avoided by using active warming methods. 

To read more of this article by David Leaper, MD ChM FRCS FACS; Senthil Kumar, MS FRCS; and Nick Bettles , BSc, MSc, C.Eng, MIEE, please click here >>

Improved Patient Warming for Better Clinical Outcomes

Inditherm's innovative, world-leading technology now leads warming practice for patient care in surgery and other critical care situations. There is widespread clinical evidence of the benefits of patient warming for the prevention of hypothermia. Click here to read more of this article >>

References

  1. Comparison of the Inditherm Mattress and a forced-air patient warming device during major abdominal and orthopaedic surgery. Baxendale, B., Giovanelli, M. (2000) Dept. of Anaesthesia, University Hospital, Queens Medical Centre, Nottingham, UK.
  2. Pressure-relieving properties of an intra-operative warming device. Baker, E.A., and Leaper, D.J. J.Wound Care 2003; 12: 4, 156-160
  3. Maintaining perioperative normothermia. Harper, C.M., McNicholas, T., Gowrie-Mohan, S. BMJ 2003; 326: 721-722 (April)
  4. Perioperative normothermia to reduce the incidence of surgical-wound infection and shorten hospitalization. Kurz, A., Sessler, D.I., Lenhardt, R. N.Engl.J.Med 1996; 334: 1209-1215
  5. The effects of pre-operative warming on the incidence of wound infection after clean surgery: a randomised controlled trial. Melling, A.C., Ali, B., Scott, E.M. and Leaper, D.J., (2001) The Lancet 358(9285): 882-886
  6. Perioperative Systemic Warming Reduces Morbidity and 30 Day Mortality after Elective Major Abdominal Surgery. Kumar, S., Wong, P.F., Bohra, A.K., Leaper, D.J. Eur.Surg.Res 2004; 36 (suppl 1): 1-148
  7. Randomised controlled trial of systemic warming as an adjunct to resuscitation in peritonitis: pilot study using APACHE II as an outcome measure. Wong, P.F., Kumar, S., Leaper, D.J. Br.J.Surg. Vol 91, Suppl. 1, May 2004
  8. Active warming of critically ill trauma patients during intrahospital transfer: a prospective, randomized trial. Scheck, T., Kober, A., Bertalanffy, P., Aram, L., Andel, H., Molnar, C., Hoe, K. Wien Klin Wochenschr. 2004 Feb 16;116(3):94-7
  9. Getting Warmer. Munns, J., Goudie, A., Mather, V., Leman, P. Emergency Department, St Thomas' Hospital, London.

 

Performance of Inditherm patient warming systems has been proven in clinical studies and routine practice.
Performance of Inditherm patient warming systems has been proven in clinical studies and routine practice.
 
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