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Biomedical subjects

C Knowles

Publications and source records attributed to C Knowles.

21 records · Page 2Linked to original sources
PubMed1986

Effects of auricular transcutaneous electrical nerve stimulation on experimental pain threshold.

This study was conducted to examine the effects of high intensity transcutaneous electrical nerve stimulation at auricular acupuncture points on experimental pain threshold. Forty-five healthy adult male and female subjects were assigned randomly to one of two treatment groups or to a control group. Subjects in the two treatment groups received high intensity TENS to either appropriate or inappropriate (placebo) acupuncture points on one ear. Experimental pain threshold at the ipsilateral wrist was determined with a painful electrical stimulus before and after ear stimulation. Only the group receiving stimulation of appropriate ear acupuncture points exhibited a significant increase (p less than .01) in experimental pain threshold after ear stimulation. The comparable placebo and control groups, again, did not exhibit significant pretest-posttest differences in experimental pain threshold. The results suggest that, if applied accurately, auricular TENS can increase pain threshold. Further research is needed to assess the effects of this technique on patient groups.

Acupuncture Therapy↗
PubMedDate not supplied

Clinical evaluation of an electronic pressure-relieving mattress.

A 12-month clinical evaluation of the Talley Quattro Deep Cell 2000 mattress manufactured by Talley Medical was undertaken on both a trauma and surgical ward at the Royal Devon and Exeter Hospital. An identified registered nurse coordinated the evaluation with support from tissue viability clinical nurse specialists. Data on patients, including diagnosis, Waterlow score, pressure area condition and general comments by nurses and patients, were collected. The evaluation involved 35 patients who were at high- to very-high risk of pressure sore formation. The results showed that 16 out of 40 sores healed during the evaluation period and 16 sores remained unchanged. Only one patient developed broken skin while nursed on the mattress. Seventeen patients maintained tissue integrity. Although the study was limited the results suggest that the Talley Quattro Deep Cell 2000 mattress is useful in preventing and managing pressure sores in high- to very high-risk patients.

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