Stephen Kay

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AIMS To evaluate whether the Asthma Control Test (ACT) score is predictive of Global Initiative for Asthma (GINA) guideline-defined classification levels of asthma control. The ACT is a validated, 5-item, patient-completed measure of asthma control with a recall period of four weeks. METHODS Cross-sectional survey comparing ACT score and GINA(More)
PURPOSE To develop a mapping algorithm for the estimation of EQ-5D-based utility scores from observed 25-item National Eye Institute Visual Functioning Questionnaire (NEI VFQ-25) scores, a disease-specific, patient-reported outcome measure used in several retinal disorders to evaluate vision-specific functioning. METHODS The dataset comprised 951 paired(More)
UNLABELLED The use of autogenous bone graft in spinal fusion is progressively declining. Different allografts including the human bone morphogenetic protein have been proposed to facilitate fusion rates but are associated with various adverse effects. Osteocel belongs to a new class of allograft tissue material that is a re-absorbable biomaterial with(More)
This study is based on 109 patients with severe head injury who had a Glasgow coma score equal to or less than 7 and a Liège coma score equal to or less than 12 in the first 24 hours. The syndrome of inappropriate secretion of antidiuretic hormone seems to us to be a frequent complication of severe craniocerebral trauma. It has been discovered in 33% of our(More)
OBJECTIVES To provide a mapping algorithm for estimating EuroQol five-dimensional (EQ-5D) questionnaire index scores from the Incontinence-specific Quality of Life questionnaire (I-QOL) based on nationally representative samples of patients with idiopathic or neurogenic overactive bladder (OAB) using EQ-5D questionnaire preference valuations based on both(More)
BACKGROUND As total disk arthroplasty (TDA) gains increasing acceptance as an alternative to fusion for degenerative disk disease of the lumbar spine, new complications are encountered by the physicians during and after the procedure. We hereby report a complication after TDA in the lumbar spine that is in variance from previously proposed theories and(More)
Three patients with plunging ranula, two of which occurred spontaneously and one of which followed removal of the submandibular gland, were treated by excision of the sublingual gland. The sublingual gland is removed through the mouth or through a cervical submandibular incision. No dissection of the cervical ramifications associated with the ranula is(More)
A prospective randomized trial of prophylactic antibiotics in 202 patients undergoing appendectomy is reported upon. The antibiotics used were metronidazole and cephradine. Half of the patients received antibiotics preoperatively. The other half received antibiotics at operation only upon finding perforation, gangrene or pus formation. All wounds were(More)