Marianne Wallis

Routine versus clinically indicated replacement of peripheral intravenous catheters: a randomised controlled equivalence trial

BACKGROUND The millions of peripheral intravenous catheters used each year are recommended for 72-96 h replacement in adults. This routine replacement increases health-care costs and staff workload and requires patients to undergo repeated invasive procedures. The effectiveness of the practice is not well established. Our hypothesis was that clinically indicated catheter replacement is of equal benefit to routine replacement. METHODS This multicentre, randomised, non-blinded equivalence trial recruited adults (≥18 years) with an intravenous catheter of expected use longer than 4 days from three hospitals in Queensland, Australia, between May 20, 2008, and Sept 9, 2009. Computer-generated random assignment (1:1 ratio, no blocking, stratified by hospital, concealed before allocation) was to clinically indicated replacement, or third daily routine replacement. Patients, clinical staff, and research nurses could not be masked after treatment allocation because of the nature of the intervention. The primary outcome was phlebitis during catheterisation or within 48 h after removal. The equivalence margin was set at 3%. Primary analysis was by intention to treat. Secondary endpoints were catheter-related bloodstream and local infections, all bloodstream infections, catheter tip colonisation, infusion failure, catheter numbers used, therapy duration, mortality, and costs. This trial is registered with the Australian New Zealand Clinical Trials Registry, number ACTRN12608000445370. FINDINGS All 3283 patients randomised (5907 catheters) were included in our analysis (1593 clinically indicated; 1690 routine replacement). Mean dwell time for catheters in situ on day 3 was 99 h (SD 54) when replaced as clinically indicated and 70 h (13) when routinely replaced. Phlebitis occurred in 114 of 1593 (7%) patients in the clinically indicated group and in 114 of 1690 (7%) patients in the routine replacement group, an absolute risk difference of 0·41% (95% CI -1·33 to 2·15%), which was within the prespecified 3% equivalence margin. No serious adverse events related to study interventions occurred. INTERPRETATION Peripheral intravenous catheters can be removed as clinically indicated; this policy will avoid millions of catheter insertions, associated discomfort, and substantial costs in both equipment and staff workload. Ongoing close monitoring should continue with timely treatment cessation and prompt removal for complications. FUNDING Australian National Health and Medical Research Council.

Development of a theoretically derived model of resilience through concept analysis

Abstract Background: Resilience refers to a dynamic process that results in adaptation in the context of significant adversity (Margalit 2004). The concept of resilience has been of interest to various professional groups for many years; however, it is only recently that the nursing profession has begun to recognise its potential contribution in diverse clinical contexts. Objective: First, to identify current theoretical and operational definitions of resilience and second, to identify and describe defining attributes of resilience. Methods: The method of inquiry was guided byWalker and Avant’s (1995) approach to concept analysis. Findings: From this analysis, a conceptual model of resilience postulates that the constructs of self-efficacy, hope and coping are defining attributes of resilience. Discussion: Resilience appears to be a process that can be developed at any time during lifespan, and thus is not an inherent characteristic of personality. Further, the development of resilience is based on the synergy shared between individuals and their environments and experiences. Conclusions: Further theoretical clarification of the ways in which individuals transform stressful experiences into opportunities for increased growth may contribute to nursing knowledge in the form of better understanding of the resilience concept in the context of identifying strategies that build it.

Bedside handover: quality improvement strategy to "transform care at the bedside".

This quality improvement project implemented bedside handover in nursing. Using Lewins 3-Step Model for Change, 3 wards in an Australian hospital changed from verbal reporting in an isolated room to bedside handover. Practice guidelines and a competency standard were developed. The change was received positively by both staff and patients. Staff members reported that bedside handover improved safety, efficiency, teamwork, and the level of support from senior staff members.

A comparison of activities undertaken by enrolled and registered nurses on medical wards in Australia: An observational study

BACKGROUND The past decade has seen increasing patient acuity and shortening lengths of stays in acute care hospitals, which has implications for how nursing staff organise and provide care to patients. OBJECTIVE The aim of this study was to describe the activities undertaken by enrolled nurses (ENs) and registered nurses (RNs) on acute medical wards in two Australian hospitals. DESIGN This study used structured observation, employing a work sampling technique, to identify the activities undertaken by nursing staff in four wards in two hospitals. Nursing staff were observed for two weeks. The data collection instrument identified 25 activities grouped into four categories, direct patient care, indirect care, unit related activities and personal activities. SETTING Two hospitals in Queensland, Australia. RESULTS A total of 114 nursing staff were observed undertaking 14,528 activities during 482h of data collection. In total, 6870 (47.3%) indirect, 4826 (33.2%) direct, 1960 (13.5%) personal and 872 (6.0%) unit related activities were recorded. Within the direct patient care activities, the five most frequently observed activities (out of a total of 10 activities) for all classifications of nursing staff were quite similar (admission and assessment, hygiene and patient/family interaction, medication and IV administration and procedures), however the absolute proportion of Level 2 RN activities were much lower than the other two groups. In terms of indirect care, three of the four most commonly occurring activities (out of a total of eight activities) were similar among groups (patient rounds and team meetings, verbal report/handover and care planning and clinical pathways). The six unit related activities occurred rarely for all groups of nurses. CONCLUSION This study suggests that similarities exist in the activities undertaken by ENs and Level 1 RNs, supporting the contention that role boundaries are no longer clearly delineated.

The impact of organisational and individual factors on team communication in surgery: a qualitative study.

BACKGROUND Effective teamwork and communication is a crucial determinant of patient safety in the operating room. Communication failures are often underpinned by the inherent differences in professional practices across disciplines, and the ways in which they collaborate. Despite the overwhelming international support to improve team communication, progress has been slow. OBJECTIVE The aim of this paper is to extend understanding of the organisational and individual factors that influence teamwork in surgery. DESIGN This qualitative study used a grounded theory approach to generate a theoretical model to explain the relations between organisational and individual factors that influence interdisciplinary communication in surgery. SETTING AND PARTICIPANTS A purposive sample of 16 participants including surgeons, anaesthetists, and nurses who worked in an operating room of a large metropolitan hospital in south east Queensland, Australia, were selected. METHODS Participants were interviewed during 2008 using semi-structured individual and group interviews. All interviews were recorded and transcribed. Using a combination of inductive and deductive approaches, thematic analyses uncovered individual experiences in association with teamwork in surgery. RESULTS Analysis generated three themes that identified and described causal patterns of interdisciplinary teamwork practices; interdisciplinary diversity in teams contributes to complex interpersonal relations, the pervasive influence of the organisation on team cohesion, and, education is the panacea to improving team communications. CONCLUSIONS The development of shared mental models has the potential to improve teamwork in surgery, and thus enhance patient safety. This insight presents a critical first step towards the development teambuilding interventions in the operating room that would specifically address communication practices in surgery.

Bedside nursing handover: A case study

A case study of six wards in two hospitals was undertaken to describe the structures, processes and perceptions of outcomes of bedside handover in nursing. A total of 532 bedside handovers were observed and 34 interviews with nurses were conducted. Important structural elements related to the staff, patients, the handover sheet and the bedside chart. A number of processes before, during and after the handover were implemented. They included processes for managing patients and their visitors, sensitive information, and the flow of communication for variable shift starting times. Other key processes identified were the implementation of a safety scan and medication check. The situation, background, assessment and recommendations approach was used only in specific circumstances. Perceived outcomes were categorized as improving accuracy and service delivery, and promoting patient-centred care. Although the move to bedside handover is not the norm, it reflects a patient-centred approach.

Acute care management of older people with dementia: a qualitative perspective

AIM AND OBJECTIVES This Australian study explored management for older people with dementia in an acute hospital setting. BACKGROUND As the population ages, increasing numbers of older people with dementia are placed into an acute care hospital to manage a condition other than dementia. These people require special care that takes into account the unique needs of confused older people. Current nursing and medical literature provides some direction in relation to best practice management; however, few studies have examined this management from the perspective of hospital staff. DESIGN A descriptive qualitative approach was used. METHOD Data were collected using semi-structured audio-taped interviews with a cross section of thirteen staff that worked in acute medical or surgical wards in a large South East Queensland, Australia Hospital. RESULTS Analysis of data revealed five subthemes with the overarching theme being paradoxical care, in that an inconsistent approach to care emphasised safety at the expense of well-being and dignity. A risk management approach was used rather than one that incorporated injury prevention as one facet of an overall strategy. CONCLUSION Using untrained staff to sit and observe people with dementia as a risk management strategy does not encourage an evidence-based approach. Staff education and environmental resources may improve the current situation so that people with dementia receive care that takes into account their individual needs and human dignity. RELEVANCE TO CLINICAL PRACTICE Nurses can assist older people with dementia by encouraging evidence-based care practices to become the part of hospital policy.

Risk factors for peripheral intravenous catheter failure: a multivariate analysis of data from a randomized controlled trial.

OBJECTIVE To assess the relative importance of independent risk factors for peripheral intravenous catheter (PIVC) failure. METHODS Secondary data analysis from a randomized controlled trial of PIVC dwell time. The Prentice, Williams, and Peterson statistical model was used to identify and compare risk factors for phlebitis, occlusion, and accidental removal. SETTING Three acute care hospitals in Queensland, Australia. PARTICIPANTS The trial included 3,283 adult medical and surgical patients (5,907 catheters) with a PIVC with greater than 4 days of expected use. RESULTS Modifiable risk factors for occlusion included hand, antecubital fossa, or upper arm insertion compared with forearm (hazard ratio [HR], 1.47 [95% confidence interval (CI), 1.28-1.68], 1.27 [95% CI, 1.08-1.49], and 1.25 [95% CI, 1.04-1.50], respectively); and for phlebitis, larger diameter PIVC (HR, 1.48 [95% CI, 1.08-2.03]). PIVCs inserted by the operating and radiology suite staff had lower occlusion risk than ward insertions (HR, 0.80 [95% CI, 0.67-0.94]). Modifiable risks for accidental removal included hand or antecubital fossa insertion compared with forearm (HR, 2.45 [95% CI, 1.93-3.10] and 1.65 [95% CI, 1.23-2.22], respectively), clinical staff insertion compared with intravenous service (HR, 1.69 [95% CI, 1.30-2.20]); and smaller PIVC diameter (HR, 1.29 [95% CI, 1.02-1.61]). Female sex was a nonmodifiable factor associated with an increased risk of both phlebitis (HR, 1.64 [95% CI, 1.28-2.09]) and occlusion (HR, 1.44 [95% CI, 1.30-1.61]). CONCLUSIONS PIVC survival is improved by preferential forearm insertion, selection of appropriate PIVC diameter, and insertion by intravenous teams and other specialists. TRIAL REGISTRATION The original randomized controlled trial on which this secondary analysis is based is registered with the Australian New Zealand Clinical Trials Registry (http://www.anzctr.org.au; ACTRN12608000445370).

The effects of multimodal exercise on cognitive and physical functioning and brain-derived neurotrophic factor in older women: a randomised controlled trial

OBJECTIVE to test the effect of a 16-week multimodal exercise program on neurocognitive and physical functioning and brain-derived neurotrophic factor (BDNF). DESIGN a single-blinded, parallel-group randomised controlled trial. SETTINGS university campus and community-based halls. SUBJECTS forty-nine women aged 65 to 75 years, with no cognitive impairment and not undertaking more than 1 h of formal exercise training per week. METHODS the intervention group attended a 60-min multimodal class twice each week which included cardiovascular, strength and motor fitness training. The primary outcome was neurocognitive functioning and secondary outcomes were physical functioning and plasma levels of BDNF. RESULTS twenty-five participants were randomised to the intervention group and 24 to the control group. One control participant withdrew before follow-up data collection. The intervention group performed significantly better than the control group at follow-up (when controlled for baseline) in the Trail Making test A and B, the California Older Adult Stroop test (Word, Interference and Total scores), Controlled Oral Word Association test and the Timed Up-and-Go test, Six-Minute Walk test, One-Legged Stance test and plasma BDNF. CONCLUSION this multimodal exercise program resulted in neurocognitive and physical performance improvements and increased levels of plasma BDNF, in older women, when compared with controls. This RCT provides evidence that a multimodal exercise intervention can achieve larger effect sizes than those generally resulting from single modality interventions. Increases in BDNF levels imply neurogenesis may be a component of the mechanism underpinning the cognitive improvements associated with multimodal exercise. TRIAL REGISTRATION Australian and New Zealand Clinical Trial Registration Number: ANZCTR12612000451808.

Best practice for the management of older people with dementia in the acute care setting: a review of the literature

Aim.  This paper reviews the theoretical and research-based literature related to the management of people with chronic confusion as a consequence of dementia in the acute care setting. Background.  People aged 65 years and over are at increased risk of poor outcomes when admitted to the acute care setting as a result of comorbity and mismanagement of their chronic confusion. The challenge of caring for people with dementia in acute care is one that requires special attention. Results.  The theoretical literature outlines a number of principles of care necessary for best practice in the care of people with dementia. A number of different models of care are reported in the literature and some evaluative research has been undertaken to assess the benefits of the different models. Conclusion.  There are a number of interventions that if put into place in acute care may improve care of people with dementia and reduce the burden of care. There is emerging evidence that interventions such as staff education, skilled expertise, standardized care protocols and environmental modification help to meet the needs of people with dementia in acute hospital settings. This paper adds to our current understanding of management of dementia in the acute care setting, an area that demonstrates the need to move from descriptive to intervention studies to ensure evidence for care of persons with a dementing condition.