Podiatry
Permanent URI for this collectionhttps://eresearch.qmu.ac.uk/handle/20.500.12289/7
Browse
22 results
Search Results
Item A modular device to measure the effects of plantar foot pressure on the microcirculation of the heel(Elsevier Science Ltd, 2003-03) Santos, Derek; Carline, Tom; Richmond, R.; Abboud, R.Background: Past research has concentrated on foot function and plantar foot pressure, with many devices developed for this purpose. However, little is known of how cutaneous blood flow compensates for ambulatory repetitive circulatory insults and how ulceration occurs. Objectives: To develop a system to measure the effects of plantar foot pressure on cutaneous blood flow in the supine and semi-weight bearing positions. Method: A system was developed that integrated a laser Doppler fluxmeter with a pressure probe, allowing plantar foot pressure and skin blood flow to be recorded simultaneously. The system was tested using four volunteers (288.6 years). Results: A significant difference existed between baseline laser Doppler flowmetry (LDF) in the supine and semi-weight bearing positions (P=0.023). Differences between both positions also existed in the reduction in LDF levels following application of pressure (P=0.015), the maximum hyperaemic response (P=0.034) and time taken to reach maximum hyperaemic response (P=0.019). Conclusion: The device has shown that with current technology it is now possible not only to investigate plantar foot pressure but also how it affects skin blood flow, which in some cases can lead to ulceration. The effect of plantar foot pressure on cutaneous blood flow differs depending on whether the subject is supine or semi-weight bearing. Thus, to understand the effects of plantar foot pressure on skin blood flow future researchers must ensure that subjects are in an upright position when recording.Item A Pseudomonas aeruginosa infection of the nail: a case report(1997) Santos, Derek; Carline, Tom; Weir, Evelyn C.Item Examination of the lower limb in high risk patients(Tissue Viability Society, 2000-07) Santos, Derek; Carline, TomWhen 'at risk' patients say that their feet are killing them, they may be right. Diabetes mellitus accounts for 50 to 70% of all nontraumatic amputations with a three year survival rate of those who undergo a lower limb amputation of 50%. Furthermore, when compared to the 'normal' foot, the 'at risk' foot is more likely to develop complications, thus it is vital to identify such 'at risk' individuals in an attempt to prevent the risk of deformity, ulceration, infection and/or necrosis/gangrene. The assessment involves history taking, the examination and further investigations, providing the necessary information to make a clinical diagnosis and identify 'at risk' groups. During the examination the foot-wear should be checked, nails and skin condition should be closely inspected and tests should be carried out for signs of peripheral neuropathy, ischaemia and venous/lymphatic deficiency. Other complications like deformity and increases in foot pressure may cause ulceration. Where ulcers are present, an in-depth systematic inspection is necessary. A thorough lower limb examination of high risk patients provides the necessary information to make a clinical diagnosis and plan preventative measures to avoid future complications.Item Assessment of the At-risk Foot(1999) Santos, DerekPaper adds to the growing body of evidence that children can acquire phonological systems before they are able to master the phonetic skills needed to convey the contrasts in that systemItem Implementing the evidence: A disease management system for secondary prevention of coronary heart disease in the Scottish Borders.(2004-03-01) Santos, Derek; Gillies, John; Vartiainen, Erki; Dunbar, James; Nettleton, BarbaraScotland has one of the highest rates of coronary heart disease (CHD) in the world. The Hearts in the Borders project was set up in the Scottish Borders with the aim of providing the highest possible standards of care and improving the health of patients with CHD. The project is multidisciplinary and multi-organisational with an innovative implementation strategy involving guideline development and implementation, audit, staff training, and the development and use of a resource pack. The project started in 1998 and three audit cycles (in late 1999, 2000 and 2002) have been conducted to date. All practices in the Borders now have a CHD register. The project targeted patients under the age of 75 years with a history of myocardial infarction, coronary artery bypass grafting and/or angioplasty. Major improvements occurred in cholesterol control with the number of patients with cholesterol below 5 mmol/l improving from 29% to 62%. Aspirin prescribing is high with trends towards better control of blood pressure. Improvements in lifestyle advice given were also found. A positive outcome of the project was a reduction in hospital admissions from 32% in the 1999 audit to 20% in 2002. The project has benefited the Borders by introducing new ways of working across professional and organisational divides, and provided a foundation for the development of a management clinical network for CHD. The model developed has also allowed more rapid planning of a local project to implement the hypertension guidelines. The project has been awarded three national awards for its innovative approach to CHD.Item Distribution of in-shoe dynamic plantar foot pressures in professional football players(Elsevier, 2001-03) Santos, Derek; Carline, Tom; Flynn, Lynne; Pitman, D.; Feeney, D.; Patterson, C.; Westland, E.At two football venues, 35 professional football players, aged 17 to 30, took part in a study. The aim was to compare in-shoe dynamic plantar foot pressures between football boots and trainers by investigating relationships between area, force and pressure. The study showed a decreased plantar foot area of 9.3% in the left football boot when compared to the trainer and 7.2% in the right. Maximum pressure was 35% higher in football boots when compared to trainers. Similarly, mean pressure was 27.6% higher in football boots. The study suggests that a reduced football boot surface area may be responsible for the increased forces and pressures within football boots when compared to trainers.Item A review of the effects of external pressure on skin blood flow(Elsevier, 2003-12) Santos, Derek; Carline, Tom; Richmond, R.; Abboud, R.The human foot is a complex mechanical structure consisting of bones, ligaments and joints. They act together to provide a robust system capable of absorbing and dissipating the intermitted pressure that is subjected to its plantar surface during walking to prevent soft tissue breakdown. Current studies suggest that plantar foot pressure may lead to soft tissue breakdown (e.g. neuropathic ulceration) and hence research has so far concentrated on investigating the mechanical effects of plantar foot pressure on the foot's integrity. This has been possible through the widely available pressure and force platforms as well as in-shoe pressure systems. However, to understand how plantar foot pressure causes soft tissue breakdown it is vital to investigate both the physiological-mechanical interactions between the skin and plantar foot pressure. This review suggests that with the current advances in technology, the physiological response of skin blood flow to mechanical plantar foot pressure should be investigated and correlated further, both during static and dynamic loading, by developing a new system capable of either measuring both variables simultaneously or by synchronising two systems in real time.Item Hearts in the Borders: implementing guidelines(2002) Santos, Derek; Gillies, JohnItem The role of haematological markers and factors in predicting fistula formation: success in diabetic patients with renal failure(2009) Siddiqui, Muhammad A.; Carline, Tom; Santos, Derek; Raza, Z.; McKnight, JohnItem Early development of a lower limb ischaemic pain test using the McGill Pain Questionnaire (MPQ) in healthy volunteers(2008) Seenan, Christopher; Roche, Patricia; Santos, Derek
- «
- 1 (current)
- 2
- 3
- »