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Hill C.J.,Queens University of Belfast | Hill C.J.,Regional Nephrology Unit | Cardwell C.R.,Queens University of Belfast | Patterson C.C.,Queens University of Belfast | And 8 more authors.
Diabetic Medicine | Year: 2014

Aims: We investigated the prevalence of chronic kidney disease and attainment of therapeutic targets for HbA1c and blood pressure in a large UK-based diabetes population. Methods: The UK National Diabetes Audit provided data from 1 January 2007 to 31 March 2008. Inclusion criteria were a documented urinary albumin:creatinine ratio and serum creatinine. Patients were stratified according to chronic kidney disease stage and albuminuria status. Chronic kidney disease was defined as an estimated glomerular filtration rate < 60 ml min-1 1.73 m-2, albuminuria or both. The proportions of patients achieving nationally defined glycaemic and systolic blood pressure targets were determined. Results: The cohort comprised 1 423 669 patients, of whom 868 616 (61%) met inclusion criteria. Of the patients analysed, 92.2% had Type 2 diabetes. A higher proportion of people with Type 2 diabetes (42.3%) had renal dysfunction compared with those with Type 1 diabetes (32.4%). Achievement of systolic blood pressure and HbA1c targets was poor. Among people with Type 1 diabetes, 67.8% failed to achieve an HbA1c < 58 mmol/mol (7.5%). Of all people with diabetes, 37.8% failed to achieve a systolic blood pressure < 140 mmHg. Blood pressure control was poor in advanced chronic kidney disease. For example, mean (standard deviation) systolic blood pressure rose from 128.6 (15.4) mmHg among people with Type 1 diabetes and normal renal function to 141.0 (23.6) mmHg in those with chronic kidney disease stage 5 and macroalbuminuria. Conclusions: The high prevalence of chronic kidney disease and poor attainment of treatment targets highlights a large subset of the diabetes population at increased risk of cardiovascular mortality or progressive kidney disease. © 2013 Diabetes UK.

Collins J.-A.,Royal Belfast Hospital for Sick Children | Rudenski A.,University of Manchester | Gibson J.,Newcastle University | Howard L.,Imperial College London | O'Driscoll R.,Salford Royal Foundation NHS Trust
Breathe | Year: 2015

The delivery of oxygen by arterial blood to the tissues of the body has a number of critical determinants including blood oxygen concentration (content), saturation (SO2) and partial pressure, haemoglobin concentration and cardiac output, including its distribution. The haemoglobin– oxygen dissociation curve, a graphical representation of the relationship between oxygen saturation and oxygen partial pressure helps us to understand some of the principles underpinning this process. Historically this curve was derived from very limited data based on blood samples from small numbers of healthy subjects which were manipulated in vitro and ultimately determined by equations such as those described by Severinghaus in 1979. In a study of 3524 clinical specimens, we found that this equation estimated the SO2 in blood from patients with normal pH and SO2 >70% with remarkable accuracy and, to our knowledge, this is the first large-scale validation of this equation using clinical samples. Oxygen saturation by pulse oximetry (SpO2) is nowadays the standard clinical method for assessing arterial oxygen saturation, providing a convenient, pain-free means of continuously assessing oxygenation, provided the interpreting clinician is aware of important limitations. The use of pulse oximetry reduces the need for arterial blood gas analysis (SaO2) as many patients who are not at risk of hypercapnic respiratory failure or metabolic acidosis and have acceptable SpO2 do not necessarily require blood gas analysis. While arterial sampling remains the gold-standard method of assessing ventilation and oxygenation, in those patients in whom blood gas analysis is indicated, arterialised capillary samples also have a valuable role in patient care. The clinical role of venous blood gases however remains less well defined. © 2015, European Respiratory Society. All rights reserved.

O'Driscoll B.R.,Salford Royal Foundation NHS Trust | Howard L.S.,Hammersmith Hospital | Howard L.S.,Imperial College London | Davison A.G.,University of Essex
Clinical Medicine, Journal of the Royal College of Physicians of London | Year: 2011

There is considerable controversy concerning the benefits and risks of oxygen treatment in many situations and healthcare professionals receive conflicting advice about safe oxygen use. The British Thoracic Society (BTS) has published up-to-date, evidence-based guidelines for emergency oxygen use in the UK in order to encourage the safe use of oxygen in emergency situations and improve consistency of clinical practice.1The purpose of this concise guideline is to summarise the key recommendations, particularly concerning emergency oxygen use in the hospital setting. © Royal College of Physicians, 2011. All rights reserved.

Farmer A.D.,Queen Mary, University of London | Coen S.J.,Queen Mary, University of London | Kano M.,Queen Mary, University of London | Kano M.,Tohoku University | And 7 more authors.
Annals of Gastroenterology | Year: 2014

Background The parasympathetic nervous system has been implicated in the pathogenesis of a number of gastrointestinal disorders including irritable bowel syndrome. Within the field, cardiometric parameters of parasympathetic/vagal tone are most commonly derived from time, or frequency, domain analysis of heart rate variability (HRV), yet it has limited temporal resolution. Cardiac vagal tone (CVT) is a non-invasive beat-to-beat measure of brainstem efferent vagal activity that overcomes many of the temporal limitations of HRV parameters. However, its normal values and reproducibility in healthy subjects are not fully described. The aim of this study was to address these knowledge gaps. Methods 200 healthy subjects (106 males, median age 28 years, range 18-59 years) were evaluated across three study centers. After attachment of CVT recording equipment, 20 min of data (resting/no stimulation) was acquired. 30 subjects, selected at random, were restudied aft er 1 year. Results The mean CVT was 9.5±4.16 linear vagal scale (LVS). Thus, the normal range (mean±2 standard deviations) for CVT based on this data was 1.9-17.8 LVS. CVT correlated negatively with heart rate (r=-0.6, P=0.001). CVT reproducibility over 1 year, as indexed by an intra-class correlational coefficient of 0.81 (95% confidence interval 0.64-0.91), was good. Conclusions In healthy subjects, the normal range for CVT should be considered to be 1.9-17.8 LVS and is reproducible over 1 year. Future research utilizing CVT should refer to these values although further study is warranted in patient groups. © 2014 Hellenic Society of Gastroenterology.

Westbrook J.L.,Salford Learning Disability Team | Mcintosh C.J.,Rotherham Neurorehabilitation Service | Sheldrick R.,Salford Royal Foundation NHS Trust | Surr C.,University of Bradford | Hare D.J.,University of Manchester
Disability and Rehabilitation | Year: 2013

Background: Measuring the quality of care for people using neuro-rehabilitation services is a complex area requiring reliable methods that account for variable communication abilities/cognitive functioning. Dementia Care Mapping (DCM) is an observational method widely used in dementia care to improve person-centred care, which may be usefully applied to neuro-rehabilitation settings. Evaluation is vital to determine the tool's acceptability in this setting. Purpose: To explore the views of staff/patients regarding whether the use of DCM is acceptable in a neuro-rehabilitation setting. Method: DCM was conducted on an acute neuro-rehabilitation ward. Q-methodology, a technique for extracting subjective opinions, was used with 23 staff and 10 patients on the ward to evaluate the acceptability of DCM. Results: Factor analysis was performed separately for staff and patient Q-sorts. Each found a "consensus" factor where all participants indicated positive acceptability for the use of DCM. Further exploratory factors indicated that some staff/patients had additional views/concerns that were not captured by the first consensus factor. Conclusions: The results from this preliminary study are promising and indicate that DCM is potentially an acceptable tool to use in acute neuro-rehabilitation. Further research is needed to explore the acceptability of this tool more widely across neuro-rehabilitation settings.Implications for RehabilitationPerson-centred care is widely acknowledged as being important in all care settings, including neurorehabilitation.Dementia Care Mapping was deemed to be an acceptable approach for improving the quality of person-centred care on the basis of the views of staff and patients in a neurorehabilitation ward.Dementia Care Mapping, with adaptations for neurorehabilitation settings, successfully provides an acceptable framework for measuring and improving the quality of person-centred care in this setting. © 2013 Informa UK Ltd.

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