Biomedical subjects

Leigh Davis

Publications and source records attributed to Leigh Davis.

6 recordsLinked to original sources

PubMed2005

Dishing the drugs: a qualitative study to explore paediatric nurses' attitudes and practice related to medication administration.

AIMS: The objectives of this study were to identify nurses' attitudes toward medication policies and the perceived factors that influence nurses' adherence to the medication policy or their ability to follow policy in the clinical environment of a tertiary paediatric hospital. METHODS: Using a focus group methodology, data were collated from a group of 32 nurses working in eight clinical areas of a tertiary paediatric hospital. Each discussion was transcribed and the data were subjected to a qualitatively based content analysis. RESULTS/FINDINGS: Four main categories emerged from the data including accessibility of information, time constraints, practice issues and professional conflict. CONCLUSIONS: Medication administration is a complex area of paediatric nursing practice. In an innovative attempt to assist in understanding nursing medication practice, this research has directly obtained nurses' perceptions of the factors that may influence their adherence to medication policy in the clinical environment. These results will inform future risk management strategies related to nursing medication practice.

Attitude of Health Personnel↗

PubMed2004

A patterned approach for linking knowledge-based systems to external resources.

Knowledge-based systems (KBSs) have been developed and used in industry and government as assistance systems, voting partner systems, and embedded applications. As web-based systems change the face of software implementations, these closed, internal KBSs need to be integrated into multicomponent applications that provide updated and extensible services. Therefore, KBSs must be adapted to an environment in which data and control are exchanged with external processes and resources; complementing other participating systems or using them to refine its own results. This integration can be a daunting task. If improperly done, it can result in an inefficient and unmanageable composite application. One approach to simplifying this task is the use of architectural patterns for integration. These patterns are assembled from functional entities that resolve component interoperability conflicts. In this paper, we describe an architectural pattern called the Knowledge Director pattern, which directs the integration of a closed KBS into a broader application environment.

Artificial Intelligence↗

PubMed2003

The impact of very premature birth on the psychological health of mothers.

BACKGROUND: The birth of a very premature infant is a critical event in the life of a family and studies have shown that mothers of these infants are at greater risk of psychological distress than mothers of full-term infants. STUDY DESIGN: A total population study of mothers of preterm infants born at less than 32-week gestation at a tertiary referral hospital. SUBJECTS AND METHODS: Sixty-two mothers of very preterm infants (<32 weeks) participated in the present study which examines correlates of maternal depressive symptomatology at 1 month following very premature birth. Information was obtained from structured questionnaires completed by mothers at 1 month after infant admission to neonatal intensive care. RESULTS: Forty percent of the mothers reported significant depressive symptoms on the Edinburgh Postpartum Depression Scale (EPDS). Logistic regression analysis indicated that high maternal stress resulted in an increased likelihood of depressive symptoms (OR 1.15, CI 1.04-1.26, p<0.01). Higher levels of maternal education (p<0.05), and increased perception of support from nursing staff (OR 1.06, CI 0.88-1.00, p<0.05) resulted in decreased likelihood of depressive symptoms. CONCLUSIONS: The birth and subsequent hospitalisation of a very premature infant evokes considerable psychological distress in mothers. These results have implications for policy development in order to enhance family centred care in the neonatal intensive care.

Adult↗

PubMed2003

Mothers' involvement in caring for their premature infants: an historical overview.

BACKGROUND: Advances in technology have resulted in increasing survival rates even for extremely premature infants. While sophisticated medical management is vital to infant survival, research has found that social factors and care giving processes are important predictors of infants' later outcome. Consequently, evidence is accumulating to demonstrate the fundamental role of mothers and families to the optimal developmental outcome of premature infants. AIM: The aim of the work reported here was to undertake an historical overview of premature infant care practices to increase neonatal nurse's knowledge of the crucial role of mothers and families in the care of their premature infants. Understanding past practice and current trends can provide neonatal nurses with critical insight which will assist in formulating current and future care. METHOD: Research and historical articles focusing on maternal involvement in preterm infant care from the development of the incubator to the present time were examined. A search of the literature between 1960 and 2002 was conducted using the MEDLINE, CINAHL and PSYCLIT databases. The search terms were premature infant, neonatal intensive care, history, and maternal care. FINDINGS: Three major themes were identified which reflect the development of neonatal care. Firstly, over the last century advances in medical and public health practice saw a decline in mortality rates for mothers and infants. Secondly, the application of this new knowledge resulted in the institutionalization and professionalization of obstetric and neonatal care which, in turn, resulted in the isolation of infants from their mothers. Finally, concurrent advances in infant research emphasized the importance of mother-infant relationships to infants' developmental outcome, resulting in greater flexibility in hospital practices regarding parental contact with their infants. CONCLUSION: As biomedical advances in technology continue to help smaller, sicker premature infants to survive, neonatal nurses are strategically placed to promote positive outcomes for infants and their families through the integration of social science and behavioural research into nursing practice.

History, 20th Century↗

PubMed2003

Mother-infant interaction in premature infants at three months after nursery discharge.

Both the immature and disorganized behaviour of the premature infant and the psychosocial or socioeconomic factors which adversely affect a mother's responsiveness to her premature infant can jeopardize the mother-infant relationship. At three months after infant hospital discharge, the interactions of 50 premature infants (< or = 32 weeks) and their mothers were videotaped and coded using the Nursing Child Assessment Feeding Scale. The relationship between data derived from the feeding interaction and maternal psychosocial and infant perinatal variables collected at one month after birth and at three months after discharge from hospital were examined. Results showed that the mothers' use of coping strategies both in hospital and at home were important factors in explaining mother-infant interaction.

Adaptation, Psychological↗

PubMed2002

Impairment of pronation, supination, and body co-ordination in reach-to-grasp tasks in human Parkinson's disease (PD) reveals homology to deficits in animal models.

Animal (monkey, rat, mouse) models are widely used to investigate degenerative processes and potential therapeutic treatments for human Parkinson's disease (PD). One task that has proved useful in these investigations is a reach-to-grasp task (skilled reaching) in which an animal reaches for a piece of food that it then consumes. Rats with extensive unilateral Dopamine depletions are impaired in using the contralateral limb. The qualitative features of posture, lifting and advancing the limb, pronating the paw to grasp food, and in withdrawing and supinating the paw to place the food in the mouth are impaired, as is reaching success. Humans with PD are often described as having poor manual dexterity that worsens as the disease progresses. As there have been no detailed comparisons of reaching movements in the animal models and in PD subjects, the following descriptive analysis was performed. Ten subjects with PD, eight age matched controls and 14 young normal subjects were studied as they used a natural movement of reaching for a small piece of food that they then placed in the mouth to eat. The reaching movements were described using Eshkol-Wachman Movement Notation (EWMN), supplemented with kinematic analyses. From this description, a 21-point rating scale was devised to describe the component movements of the reach. Movements included: orienting the head and eyes to the target, adjusting posture, lifting the hand, shaping and aiming the digits to the target, pronating the hand to grasping the food with a pincer grip, lifting and supinating the hand to transporting the food to the mouth, and further supinating the hand and opening the digits to place food in the mouth, and finally returning the hand to the starting position. Analysis indicated that most aspects of the reaching movements of the PD subjects were significantly different relative to both young control subjects and old control subjects. As compared to the control groups, postural and reaching components of the movements were fragmented, movements were achieved using more proximal segments of the body, and rotatory movements of the hand were limited. The PD subjects did use a pincer grasp to obtain the food, but the grasp was less independent of other digit movements than was observed in the control subjects. These results are discussed in terms of a homology to impairments displayed animal models of PD.

Adult↗