Biomedical subjects

Deirdre Walsh

Publications and source records attributed to Deirdre Walsh.

3 recordsLinked to original sources

PubMed2006

Electrical stimulation in cerebral palsy: a randomized controlled trial.

A randomized placebo-controlled trial was carried out to investigate the efficacy of neuromuscular electrical stimulation (NMES) and threshold electrical stimulation (TES) in strengthening the quadriceps muscles of both legs in children with cerebral palsy (CP). Sixty children (38 males, 22 females; mean age 11y [SD 3y 6mo]; age range 5-16y) were randomized to one of the following groups: NMES (n=18), TES (n=20), or placebo (n=22). Clinical presentations were diplegia (n=55), quadriplegia (n=1), dystonia (n=1), ataxia (n=1), and non-classifiable CP (n=2). Thirty-four children walked unaided, 17 used posterior walkers, six used crutches, and the remaining three used sticks for mobility. Peak torque of the left and right quadriceps muscles, gross motor function, and impact of disability were assessed at baseline and end of treatment (16wks), and at a 6-week follow-up visit. No statistically significant difference was demonstrated between NMES or TES versus placebo for strength or function. Statistically significant differences were observed between NMES and TES versus placebo for impact of disability at the end of treatment, but only between TES and placebo at the 6-week follow-up. In conclusion, further evidence is required to show whether NMES and/or TES may be useful as an adjunct to therapy in ambulatory children with diplegia who find resistive strengthening programmes difficult.

Adolescent↗

PubMed2004

A study of quality of life in primigravidae with urinary incontinence.

This study aimed to establish the prevalence and effect of urinary incontinence on quality of life during pregnancy and after parturition. A prospective cohort of primigravidae was recruited. The Kings Health Questionnaire (KHQ) was self-administered antenatally (34 weeks to term) and postnatally (3 months after delivery). Four hundred ninety-two primigravidae were recruited. The prevalence of urinary incontinence was reported as: pre-pregnancy 3.5% (17/492), antenatal 35.6% (175/492), 3-5 days postpartum 13.7% (51/370) and 3 months postnatal 13.0% (47/362). Most women with urinary incontinence experienced an impact on quality of life antenatally (54.3%) and postnatally (71.1%), although those experiencing an impact usually reported it as 'a little' (75.8 and 87.5%). There was a higher prevalence of urinary incontinence after forceps delivery ( p<0.05) but not of greater impairment in quality of life ( p>0.05). Personal and general health deteriorated postnatally ( p<0.05). During pregnancy most women with urinary incontinence experience minimal impact on quality of life. Postnatally, other causes of morbidity may contribute to worsening of general and personal health.

Adult↗

PubMed2003

Transcutaneous electrical nerve stimulation: basic science mechanisms and clinical effectiveness.

Transcutaneous electrical nerve stimulation (TENS) is used clinically by a variety of health care professionals for the reduction of pain. Clinical effectiveness of TENS is controversial, with some studies supporting whereas others refute its clinical use. Although used by health professionals for decades, the mechanisms by which TENS produces analgesia or reduces pain are only recently being elucidated. This article describes the basic science mechanisms behind different frequencies of TENS stimulation. Specifically, we describe the literature that supports the use of different frequencies and intensities of TENS. We further describe theories that support the use of TENS such as the gate control theory and the release of endogenous opioids. The literature that supports or refutes each of these theories is described. We also review the clinical literature on TENS effectiveness and elucidate the problems with clinical research studies to date. In conclusion, TENS is a noninvasive modality that is easy to apply with relatively few contraindications. However, the clinical efficacy of TENS will remain equivocal until the publication of sufficient numbers of high quality, randomized, controlled clinical trials.

Animals↗