563 resultados para 321019 Paediatrics


Relevância:

10.00% 10.00%

Publicador:

Resumo:

This research examines women GPs' careers, how they run their practices and how they reconcile professional and domestic lives. It looks at the particular experiences of women GPs who practise alone, and at the pressures in past practice experience which have led them to do so. It is argued that many of the problems of group practice which can be identified are attributable to gender. For example, one reason given for entering general practice is a desire to be able to provide the full range of medical care and not to specialise. Women GPs, however, may find themselves seeing more women patients for "women's problems" and children than they would freely choose. Women have not entered general practice in order to specialise in these areas of medicine. Indeed, if they had wanted to specialise in obstetrics, gynaecology or paediatrics they would have had difficulty advancing very far in these male-dominated areas of hospital hierarchy. Other gender related problems exist for women in general practice and practising single-handedly is one strategy that women GPs have used to counter the problems of working in male-dominated practices and partnerships. However, the twenty-four hour commitment of single-handed practice may bring further pressures in reconciling this with responsibility for home life. Out-of-hours cover, which can be viewed as the link between professional and domestic life, where the one intrudes into the other, is also examined in terms of the gender issues it raises. The interaction of gender and ethnicity is also considered for the 11 Asian women GPs in the study. Interviews were conducted with 29 single-handed women GPs in the Midlands. In addition, some cases were studied in greater depth by being observed in their surgeries and on home visits for a day each. A qualitative/feminist approach to analysis has been employed.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Oral liquid formulations are ideal dosage forms for paediatric, geriatric and patient with dysphagia. Dysphagia is prominent among patients suffering from stroke, motor neurone disease, advanced Alzheimer’s and Parkinson’s disease. However oral liquid preparations are particularly difficult to formulate for hydrophobic and unstable drugs. Therefore current methods employed in solving this issue include the use of ‘specials’ or extemporaneous preparations. In order to challenge this, the government has encouraged research into the field of oral liquid formulations, with the EMEA and MHRA publishing list of drugs of interest. The current work investigates strategic formulation development and characterisation of select API’s (captopril, gliclazide, melatonin, L-arginine and lansoprazole), each with unique obstacles to overcome during solubilisation, stabilisation and when developing a palatable dosage from. By preparing a validated calibration protocol for each of the drug candidates, the oral liquid formulations were assessed for stability, according to the ICH guidelines along with thorough physiochemical characterisation. The results showed that pH and polarity of the solvent had the greatest influence on the extent of drug solubilisation, with inclusion of antioxidants and molecular steric hindrance influencing the extent of drug stability. Captopril, a hydrophilic ACE inhibitor (160 mg.mL-1), undergoes dimerisation with another captopril molecule. It was found that with the addition of EDTA and HP-β-CD, the drug molecule was stabilised and prevented from initiating a thiol induced first order free radical oxidation. The cyclodextrin provided further steric hindrance (1:1 molar ratio) resulting in complete reduction of the intensity of sulphur like smell associated with captopril. Palatability is a crucial factor in patient compliance, particularly when developing a dosage form targeted towards paediatrics. L-arginine is extremely bitter in solution (148.7 g.L-1). The addition of tartaric acid into the 100 mg.mL-1 formulation was sufficient to mask the bitterness associated with its guanidium ions. The hydrophobicity of gliclazide (55 mg.L-1) was strategically challenged using a binary system of a co-solvent and surfactant to reduce the polarity of the medium and ultimately increase the solubility of the drug. A second simpler method was developed using pH modification with L-arginine. Melatonin has two major obstacles in formulation: solubility (100 μg.mL-1) and photosensitivity, which were both overcome by lowering the dielectric constant of the medium and by reversibly binding the drug within the cyclodextrin cup (1:1 ratio). The cyclodextrin acts by preventing UV rays from reaching the drug molecule and initiated the degradation pathway. Lansoprazole is an acid labile drug that could only be delivered orally via a delivery vehicle. In oral liquid preparations this involved nanoparticulate vesicles. The extent of drug loading was found to be influenced by the type of polymer, concentration of polymer, and the molecular weight. All of the formulations achieved relatively long shelf-lives with good preservative efficacy.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Angiotensin converting enzyme (ACE) inhibitors lisinopril and ramipril were selected from EMA/480197/2010 and the potassium-sparing diuretic spironolactone was selected from the NHS specials list for November 2011 drug tariff with the view to produce oral liquid formulations providing dosage forms targeting paediatrics. Lisinopril, ramipril and spironolactone were chosen for their interaction with transporter proteins in the small intestine. Formulation limitations such as poor solubility or pH sensitivity needed consideration. Lisinopril was formulated without extensive development as drug and excipients were water soluble. Ramipril and spironolactone are both insoluble in water and strategies combating this were employed. Ramipril was successfully solubilised using low concentrations of acetic acid in a co-solvent system and also via complexation with hydroxypropyl-β-cyclodextrin. A ramipril suspension was produced to take formulation development in a third direction. Spironolactone dosages were too high for solubilisation techniques to be effective so suspensions were developed. A buffer controlled pH for the sensitive drug whilst a precisely balanced surfactant and suspending agent mix provided excellent physical stability. Characterisation, stability profiling and permeability assessment were performed following formulation development. The formulation process highlighted current shortcomings in techniques for taste assessment of pharmaceutical preparations resulting in early stage research into a novel in vitro cell based assay. The formulations developed in the initial phase of the research were used as model formulations investigating microarray application in an in vitro-in vivo correlation for carrier mediated drug absorption. Caco-2 cells were assessed following transport studies for changes in genetic expression of the ATP-binding cassette and solute carrier transporter superfamilies. Findings of which were compared to in vitro and in vivo permeability findings. It was not possible to ascertain a correlation between in vivo drug absorption and the expression of individual genes or even gene families, however there was a correlation (R2 = 0.9934) between the total number of genes with significantly changed expression levels and the predicted human absorption.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Prescribing support for paediatrics is diverse and includes both standard texts and electronic tools. Evidence concerning who should be supported and by what method is limited. This review aims to collate the current information available on prescribing support in paediatrics. Many tools designed to support prescribers are technology based. For example, electronic prescribing and smart phone applications. There is a focus on prescriber education both at undergraduate and postgraduate level. In the UK, the majority of inpatient prescribing is done by junior medical staff. It is important to ensure they are competent on qualification and supported in this role. A UK national prescribing assessment is being trialled to test for competence on graduation and there are also tools available to test paediatric prescribing after qualification. No information is available on the tools and resources UK prescribers currently use to support their decision making. One US study reported a decrease in the availability of paediatric prescribing information in a popular reference text. There is limited evidence to show that decisionsupport tools improve patient outcomes, however, there is growing confirmation that electronic prescribing reduces medication errors. There have been reports of new error types, such as selection errors, occurring with the use of electronic prescribing. Another concern with computerised decision-support systems is deciding what alerts should be presented to the prescriber and when/how often in order to avoid alert fatigue. There is little published concerning paediatric alerts perhaps as a consequence of commercial systems often not including paediatric specific support.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Objective The aim of this study was to provide an initial insight into current UK paediatric prescribing practice. Methods In 2012 focus groups were conducted at Birmingham Children's Hospital (UK specialist hospital) with both medical and non-medical prescribers and analysed using thematic analysis. Key findings Both sets of prescribers used a wide range of resources to support their prescribing decisions. Dosing information was most commonly checked, and a lack of specialist paediatric information was reported in existing resources. All groups had high expectations of the support functions that should be included in an electronic prescribing system and could see many potential benefits. Participants agreed that all staff should see the same drug alerts. The overwhelming concern was whether the current information technology infrastructure would support electronic prescribing. Conclusions Prescribers had high expectations of electronic prescribing, but lacked confidence in its delivery. Prescribers use a wide range of resources to support their decision making when prescribing in paediatrics.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Aim The aim of the study was to examine the experiences of bereaved parents and general practitioners (GPs) following the death of a child with cancer within the family home. This presenta-tion focuses on one of the findings; the parent and GP views on the hospital consultants’ involvement in the palliative care. Design A community based qualitative study.Setting West Midlands region, UK. Participants Purposeful sample of 18 GPs and 11 bereaved families. The sample was drawn from the families and GPs of children who had been treated for cancer at a regional childhood cancer centre and who subsequently died within the family home. Methods One-to-one semi-structured tape-recorded interviews were undertaken with GPs and bereaved parents following the death at home of a child with cancer. GPs were contacted three months after the death of the child and the parents at six months. Thematic analysis of the transcriptions was undertaken. Findings Parents described feeling abandoned at the transition to palliation when management of care transferred to the GP. Families did not perceive a seamless service of medical care between hospital and community. Where offered consultant contact was valued by families and GPs. Text and email were used by families as a means of asking the consultant questions. The GPs lacked role clarity where the consultant continued involvement in the care. Conclusions The transition to palliation and the transfer of care to community services needs to be sensitively and actively man-aged for the family and the GP. Medical care between tertiary andprimary care should be seen as a continuum. Improving GP: consultant communication could aid role clarity, identify mecha-nisms for support and advice, and promote the active engagement of the GP in the care. Exploring opportunities for integrated con-sultant: GP working could maximise mutual learning and support and enhance care provision. The level, access and duration of ongoing contact between consultants and families/GPs require clarity.

Relevância:

10.00% 10.00%

Publicador:

Resumo:

Background The study being undertaken builds on earlier work that found general practitioners (GPs) were at times uncertain of their role in paediatric palliative care and questioned whether their involvement had been beneficial to the child and family. The rarity of childhood cancer makes it difficult for GPs to develop or maintain palliative care knowledge and skills yet the GP is perceived by the family as the gatekeeper of care within the community. Aim The study is examining GPs perception of their role in caring for an individual child with cancer receiving palliative care and comparing this with families' perceptions of their GP's roles. Methodology The methodology incorporates tape-recorded semi-structured interviews, thematic framework analysis and Q methodology (QM) to capture the experiences of GPs who have cared for a child with cancer receiving palliative care as well as the perspectives of care experienced by the families. The semi-structured interview sample comprises 10 families (parents/guardians) whose child has been treated at a regional childhood cancer centre and their GPs. A further 40–60 GPs will be involved in the QM. Findings Findings detailing GP experiences from the initial study along with the preliminary findings of the semi-structured interviews with parents and GPs will be presented. Papers' contribution The results will identify and clarify GPs perceptions of their roles, and what families perceive their GPs role to be, enabling development of strategies to support GPs roles. It is anticipated that findings will inform the wider field of palliative care generally and the practice of both hospital and community paediatricians.