Edwards K.H.,Lensar Inc. |
Gibson G.A.,Darlington Memorial Hospital
Clinical and Experimental Optometry | Year: 2010
There is increasing interest in the effects of reactive oxygen species ('free radicals') in ageing, both in the body overall and specifically in the eye. Cataract and age-related macular degeneration (AMD) are two major causes of blindness, with cataract accounting for 48 per cent of world blindness and AMD accounting for 8.7 per cent. Both cataract and AMD affect an older population (over 50-years of age) and while cataract is largely treatable provided resources are available, AMD is a common cause of untreatable, progressive visual loss. There is evidence that AMD is linked to exposure to short wavelength electromagnetic radiation, which includes ultraviolet, blue and violet wavelengths. The ageing crystalline lens provides some protection to the posterior pole because, as it yellows with age, its spectral absorption increasingly blocks the shorter wavelengths of light. Ultraviolet blocking intraocular lenses (IOLs) have been the standard of care for many years but a more recent trend is to include blue-blocking filters based on theoretical benefits. As these filters absorb part of the visible spectrum, they may affect visual function. This review looks at the risks and the benefits of filtering out short wavelength light in pseudophakic patients. © 2010 The Authors. Clinical and Experimental Optometry © 2010 Optometrists Association Australia.
Chuter G.S.J.,Darlington Memorial Hospital |
Chua Y.P.,University of Malaya |
Connell D.A.,Monash University |
Blackney M.C.,Park Clinic
Skeletal Radiology | Year: 2013
Objective: To identify the benefits of ultrasound-guided radiofrequency ablation of Morton's neuroma as an alternative to surgical excision. Materials and methods: We studied a consecutive cohort of surgical candidates for Morton's neurectomy who we referred, instead, for radiofrequency ablation (RFA). Under local anaesthetic, RFA was performed under ultrasound guidance, by a single radiologist. This out-patient procedure was repeated after 4 weeks if necessary. We followed patients for a minimum of 6 months to assess their change in visual analogue pain scores (VAS), symptom improvement, complications and progression to surgical excision. Results: Thirty feet in 25 patients were studied. There were 4 men and 21 women with an average age of 55 years (range 33-73 years). All had tried previous methods of conservative management. Forty percent presented with 2nd space neuromas and 60% with 3rd space ones. The average number of treatment sessions was 1.6 (range 1-3, mode 1). Prior to treatment, all patients had pain on activity (VAS average: 6.0, range 3-9). Post-treatment there was a statistically significant reduction in pain scores (post-RFA VAS average: 1.7, range 0-8, p<0.001). The average overall symptom improvement was 76%. There was one minor complication of temporary nerve irritation. Three neuromas (10%) have progressed to surgical excision; 1 patient has ongoing, unchanged pain with no obvious cause. At 6 months, 26 out of 30 feet had a satisfactory outcome. Conclusion: Ultrasound-guided RFA has successfully alleviated patients' symptoms of Morton's neuroma in >85% of cases. Only 10% have proceeded to surgical excision in the short term. © 2012 ISS.
Iqbal I.Z.,Northern Deanery |
Watson C.,Darlington Memorial Hospital
Journal of Laryngology and Otology | Year: 2016
Objectives: This study aimed to evaluate the relationship between cholesteatoma formation and the degree of mastoid pneumatisation, and to assess the relationship between the location of cholesteatoma and the degree of mastoid pneumatisation. Methods: Data on all patients undergoing mastoid exploration for cholesteatoma between 1993 and 2011 were collected prospectively. Basic demographics, the degree of mastoid pneumatisation and cholesteatoma site were recorded. Results: A total of 393 patients (222 males and 171 females) underwent surgery for cholesteatoma. Patients' mean age was 37 years (range, 6-79 years). Pneumatisation of the mastoid was sclerotic in 23 per cent (n = 90), diploic in 16.7 per cent (n = 66) and cellular in 60.3 per cent of cases (n = 237) (p < 0.001). Atticoantral disease was present in 88.9 per cent of sclerotic, 95.4 per cent of diploic and 91.1 per cent of cellular mastoids. Middle-ear cholesteatoma was present in 54.4 per cent of sclerotic, 56 per cent of diploic and 51.9 per cent of cellular mastoids. Conclusion: The findings demonstrate the presence of cholesteatoma in well-pneumatised mastoids. It is hypothesised that a well-pneumatised mastoid may lead to cholesteatoma formation. © Copyright 2015 JLO (1984) Limited.
Philipson M.R.,Darlington Memorial Hospital
Orthopaedics and Trauma | Year: 2012
Sternoclavicular joint dislocation is an uncommon injury and few clinicians have a great deal of experience treating it. Clinically, it can be surprisingly easy to miss and the presentation is often delayed. Depending on the type of dislocation, the sequelae can be life-threatening or relatively benign.This article discusses the relevant anatomy, clinical presentation, investigation and management of sternoclavicular dislocation and injuries of the medial clavicular physis. © 2012.
O'Loughlin P.M.,Darlington Memorial Hospital |
Gilliam A.D.,Darlington Memorial Hospital |
Shaban F.,Royal Infirmary |
Varma J.S.,Durham University
Surgeon | Year: 2013
Background: Gastric electrical stimulation (GES) may be of benefit in cases of gastroparesis that fail to respond to standard medical therapy. Response to this treatment is varied and prediction of clinical improvement is difficult. Methods: This was a retrospective review and symptom questionnaire survey for all patients who underwent GES insertion in a single institution from November 2008 until May 2010 using the gastroparesis cardinal symptom index (GCSI). Results: 14 out of 17 patients who had GES insertion responded to telephone or postal questionnaire. Mean pre-operative gastric emptying time was 151 min (median 146 min, range 18-318). Median follow up was 14 months (range 7-25 months). The mean reduction in GCSI score after GES insertion was 51% (13.4 vs 6.4, Z = 0.0013). Percentage reduction in GCSI correlated with pre-operative solid gastric emptying time (p = 0.0086). Two patients who responded to questionnaire required device removal, one due to a gastric perforation and the other for discomfort related to the implant and a poor clinical response. Conclusions: GES significantly improves symptoms of gastroparesis on the GCSI score. Not all patients respond equally to GES, and response may be predicted by pre-operative solid gastric emptying times. © 2012 Royal College of Surgeons of Edinburgh (Scottish charity number SC005317) and Royal College of Surgeons in Ireland.