Biomedical subjects
Publications and source records attributed to Rachel Matthews.
This paper examines aortic and mitral valve disease. It considers how nurses can treat patients with these conditions and provide support and education to help them understand their disease and the risks and benefits of surgery. Nurses also have a role in secondary prevention and in helping patients adapt to living with a prosthetic valve.
BACKGROUND: Cardiac rehabilitation programmes are widely accepted as being of benefit to patients with cardiac disease. The time spent waiting for cardiac surgery can be extremely stressful but can be used to address risk factors and provide information to reduce anxiety and prepare the patient for surgery. AIMS: To pilot the usefulness of a manual for pre-operative cardiac surgical patients, and assess the feasibility and usefulness to both nurses and patients of a monthly education and support programme for patients waiting for cardiac surgery. METHODS: A pilot study of 42 patients followed up for 3 months. Research tools included patient questionnaires and telephone interviews, risk factor measurements and nurse focus groups. RESULTS: Nurses and patients evaluated the manual and overall programme favourably, although the nurses found it was very labour intensive. Changes to risk factors made during the study were small but patients valued the opportunity to raise questions which fell into the categories of medical concerns, hospital procedure and risk factors. CONCLUSION: The manual is a useful tool for patients waiting for cardiac surgery. The programme is useful and feasible but could be targeted more specifically to patients with raised risk factors.
OBJECTIVE: To gain an understanding of the perceptions of childbearing women about the maintenance of dignity while laboring and giving birth. DESIGN: Descriptive qualitative study. SETTING: A university community in the western United States. PATIENTS/PARTICIPANTS: Twenty low-risk primiparous women who had recently given birth to healthy term neonates. MAIN OUTCOME MEASURES: Semistructured audio-taped interviews were conducted in the homes of participants using an interview guide. RESULTS: The following themes were identified: (a) nurses played a pivotal role in preserving dignity during childbirth, (b) women appreciated feeling valued and respected, and (c) dignity was enhanced by nursing care that gave women their preferred level of control. CONCLUSION: Nursing behaviors that demonstrate valuing and respect of childbearing women are essential in preserving the quality of the birth experience.
Colloid-facilitated phosphorus (P) delivery from agricultural soils in different hydrological pathways was investigated using a series of laboratory and field experiments. A soil colloidal P test was developed that yields information on the propensity of different soils to release P attached to soil colloids. The relationship between turbidity of soil extracts and total phosphorus (TP) was significant (r2 = 0.996, p < 0.001) across a range of agricultural soils, and a strong positive relationship (r2 = 0.86, p < 0.001) was found between "colloidal P" (H2O-CaCl2 extracts) and turbidity. Linear regression of the proportion of fine clay (<2 microm) for each soil type evaluated against the (H2O-CaCl2) colloidal P fraction gave a weak but positive relationship (r2 = 0.38, p = 0.082). The relative contribution of different particle-size fractions in transporting P in agricultural runoff from grassland soils was evaluated using a randomized plot experiment. A significant difference (p = 0.05) in both TP and reactive phosphorus (RP) in subsurface flow was recorded for different particle-size fractions, with most TP transferred either in association with the 2-microm fraction or with the 0.001-microm or smaller fractions. Total P concentrations in runoff were higher from plots receiving P amendments compared with the zero-P plots; however, these differences were only significant for the >0.45-microm particle-size fractions (p = 0.05), and may be evidence of surface applications of organic and inorganic fertilizers being transferred through the soil either as intact organic colloids or attached to mineral particles. Our results highlight the potential for drainage water to mobilize colloids and associated P during rainfall events.