Issues in weaning from mechanical ventilation: literature review

Effects of Mechanical Ventilator Weaning Education on ICU Nurses and Patient Outcomes: A Scoping Review

BACKGROUND

Assessment of mechanical ventilator (MV) weaning is a complex process that requires education for nurses. This scoping review aimed to clarify the effects of MV weaning education on intensive care unit nurses and patient outcomes.

METHOD

Four databases were searched. The inclusion criteria were studies on MV weaning education for nurses, outcome measures for patients or nurses, and quantitative research.

RESULTS

In total, 663 studies were identified. The criteria for a full review (n = 15) were educational protocols (n = 13) and the Burns Wean Assessment Program (n = 2). Patient outcomes determined the MV duration. The weaning protocol was convenient for nurses. Nevertheless, their clinical judgment skills must be improved, regardless of the availability of a protocol. Education is crucial for producing positive outcomes.

CONCLUSION

Education for nurses on MV weaning showed shortened MV duration. No significant effects were found for other outcomes. [J Contin Educ Nurs. 2023;54(4):185-192.].

Design of a Clinical Practice Guideline in Nurse-Led Ventilator-Weaning for Nursing Training

Cardiothoracic intensive care unit (CICU) nurses have shared the role and responsibility for ventilator-weaning to expedite decision-making in patient care. However, the actions taken are based on individual's unstructured training experience as there is no clinical practice guideline (CPG) for nurses in Malaysia. Hence, this study aims to design a CPG for the process of weaning from mechanical ventilation (MV) for a structured nursing training in a CICU at the National Heart Institute (Institut Jantung Negara, IJN) Malaysia. The Fuzzy Delphi Method (FDM) was employed to seek consensus among a panel of 30 experts in cardiac clinical practice on the guidelines. First, five experts were interviewed and their responses were transcribed and analyzed to develop the items for a FDM questionnaire. The questionnaire, comprising of 73 items, was distributed to the panel and their responses were analyzed for consensus on the design of the CPG. The findings suggested that the requirements expected for the nurses include: (a) the ability to interpret arterial blood gases, (b) knowledge and skills on the basics of mechanical ventilation, and (c) having a minimum 1-year working experience in the ICU. On the other hand, the CPG should mainly focus on developing an ability to identify criteria of patient eligible for weaning from MV. The learning content should focus on: (a) developing the understanding and reasoning for weaning and extubating and (b) technique/algorithm for extubating and weaning. Also, the experts agreed that the log book/competency book should be used for evaluation of the program. The CPG for structured nursing training at IJN in the context of the study is important for developing the professionalism of CICU nurses in IJN and could be used for training nurses in other CICUs, so that decision for ventilator-weaning from postcardiac surgery could be expedited.

L’autonomie décisionnelle d’infirmières de soins intensifs lors du sevrage de la ventilation mécanique : une analyse de concept

Nurses have a leading role in weaning patients from mechanical ventilation (WMV) given their constant presence and their continuous monitoring. To promote proper WMV, nurses must exercise autonomy and be involved in decision-making. However, in certain care contexts, there is little involvement of nurses. The purpose of this text is to establish the characteristics of the concept of autonomous decision-making applied to nursing during WMV. An analysis of this concept was carried out according to the evolutionary method of Rodgers. The identification of the attributes, antecedents, and consequences made it possible to note ambiguity in the definition of this concept. Nurses use autonomous decision-making for the execution of assigned tasks and when they make decisions according to a pre-prescribed decision-making algorithm. Significant foundations for the decision-making autonomy of critical care nurses during WMV emerged from this analysis : scope of practice, in-depth knowledge of the patient, and commitment to the success of WMV. Participation in interdependent decision-making allows nurses to bring the patient’s perspective into decisions. Avenues of reflection have also emerged, including decisions based on evidence to provide new avenues for autonomous decision-making.

Development of a Questionnaire for the Reflective Practice of Nursing Involving Invasive Mechanical Ventilation: Assessment of validity and reliability

AIM

To develop the Questionnaire for Reflective Practice of Nursing Involving Invasive Mechanical Ventilation (Q-RPN-IMV), a Japanese self-evaluation instrument for ward nurses' IMV practices.

DESIGN

Cross-sectional survey.

METHODS

Participants were 305 ward nurses from five hospitals in Japan with nursing involving invasive mechanical ventilation. Items concerning the process of nursing practice, including the thought process related to ventilator care, were collected from the literature and observation and interviews with five IMV specialists. Construct validity, concurrent validity, internal consistency and test-retest reliability were tested.

RESULTS

Initially, 141 items were collected and classified into three domains (i.e., observation, assessment and practice). Examination of exploratory factor analysis yielded five factors in the observation domain, six factors in the assessment domain and six factors in the practice domain. The data exhibited internal consistency, stability and concurrent validity. Items of practical content, including thoughts on ventilator care, are useful for preparing educational programmes.

Understanding nurses' decision-making when managing weaning from mechanical ventilation: a study of novice and experienced critical care nurses in Scotland and Greece

AIM AND OBJECTIVES

To examine how nurses collect and use cues from respiratory assessment to inform their decisions as they wean patients from ventilatory support.

BACKGROUND

Prompt and accurate identification of the patient's ability to sustain reduction of ventilatory support has the potential to increase the likelihood of successful weaning. Nurses' information processing during the weaning from mechanical ventilation has not been well-described.

DESIGN

A descriptive ethnographic study exploring critical care nurses' decision-making processes when weaning mechanically ventilated patients from ventilatory support in the real setting.

METHODS

Novice and expert Scottish and Greek nurses from two tertiary intensive care units were observed in real practice of weaning mechanical ventilation and were invited to participate in reflective interviews near the end of their shift. Data were analysed thematically using concept maps based on information processing theory. Ethics approval and informed consent were obtained.

RESULTS

Scottish and Greek critical care nurses acquired patient-centred objective physiological and subjective information from respiratory assessment and previous knowledge of the patient, which they clustered around seven concepts descriptive of the patient's ability to wean. Less experienced nurses required more encounters of cues to attain the concepts with certainty. Subjective criteria were intuitively derived from previous knowledge of patients' responses to changes of ventilatory support. All nurses used focusing decision-making strategies to select and group cues in order to categorise information with certainty and reduce the mental strain of the decision task.

CONCLUSIONS

Nurses used patient-centred information to make a judgment about the patients' ability to wean. Decision-making strategies that involve categorisation of patient-centred information can be taught in bespoke educational programmes for mechanical ventilation and weaning.

RELEVANCE TO CLINICAL PRACTICE

Advanced clinical reasoning skills and accurate detection of cues in respiratory assessment by critical care nurses will ensure optimum patient management in weaning mechanical ventilation.

Continuous care and patients' basic needs during weaning from mechanical ventilation: A qualitative study

BACKGROUND

Mechanical ventilation is associated with a number of risks and complications. Thus, rapid and safe weaning from mechanical ventilation is of great importance. Weaning is a complex and challenging process, requiring continuous care and knowledge of the patient.

AIMS

The aim of the present study was to describe the continuous care process during weaning as well as to analyse the facilitators and obstacles to the weaning process from start to finish from the perspective of intensive care unit (ICU) staff, particularly nurses.

RESEARCH DESIGN

Twenty-two ICU staff members, including nurses and physicians, and three patients hospitalised in the ICU were enrolled in this qualitative study. Semi-structured interviews were used for data collection and the transcripts were analysed using qualitative content analysis.

FINDINGS

'Continuous care' was found to be the patients' basic need during weaning from mechanical ventilation. Uninterrupted, stable, comprehensive and dynamic care and monitoring with immediate response to all physiological and psychological changes were features of continuous care. The three main themes identified by this study were time spent with the patient, comprehensive supervision and maintenance of the quality of care during shifts.

CONCLUSION

Continuous and constant care should be provided during the weaning process. Such care will help to provide health care staff with a deeper understanding of the patient and his or her continuous changes, leading to a timely and favourable response during weaning. To achieve this goal, skill, communication and organisational changes are essential.

Education of ICU nurses regarding invasive mechanical ventilation: findings from a cross-sectional survey

BACKGROUND

Continuing education for intensive care unit nurses on invasive mechanical ventilation is fundamental to the acquisition and maintenance of knowledge and skills to optimise patient outcomes.

PURPOSE

We aimed to determine how intensive care unit nurses perceived current education provided on mechanical ventilation, including a self-directed learning package and a competency programme; identify other important topics and forms of education; and determine factors associated with the completion of educational programmes on invasive mechanical ventilation.

METHODS

A cross-sectional, 30-item, self-administered and semi-structured survey on invasive mechanical ventilation education was distributed to 160 intensive care nurses. Analysis included descriptive statistics and logistic regression was used to determine factors associated with current education completion, reported as adjusted odds ratios (AOR) and 95% confidence intervals (CIs).

FINDINGS

Eighty three intensive care unit nurses responded and the majority (63%) reported not receiving education about mechanical ventilation prior to working in intensive care. Using a Likert rating scale the self-directed learning package and competency programme were perceived as valuable and beneficial. Hands-on-practice was perceived as the most important form of education and ventilator settings as the most important topic. Multivariate analysis determined that older age was independently associated with not completing the self-directed learning package (AOR 0.20, 95% CI 0.04, 0.93). For the competency programme, 4-6 years intensive care experience was independently associated with completion (AOR 17, 95% CI 1.7, 165) and part-time employment was associated with non-completion (AOR 0.23, 95% CI 0.08, 0.68).

CONCLUSION

Registered nurses are commencing their ICU experience with limited knowledge of invasive MV therefore the education provided within the ICU workplace becomes fundamental to safe and effective practice. The perception of continuing education by ICU nurses from this research is positive regardless of level of ICU experience and may influence the type of continuing education on invasive MV provided to ICU nurses in the future, not only in the ICU involved in this study, but other units throughout Australia.

Paediatric intensive care nurses' and doctors' perceptions on nurse-led protocol-directed ventilation weaning and extubation

BACKGROUND

Nurse-led (protocol-directed) ventilation weaning (NLVW) is utilized in adult intensive care and has shown to be safe and reduce ventilation times. Our paediatric intensive care unit (PICU) implemented a NLVW (and extubation) protocol in 2004, yet it was observed that some NLVW-trained nurses were not undertaking the role in practice.

AIMS

To explore PICU nurses' and doctors' perceptions of and barriers to NLVW on a UK PICU, with the aim of facilitating more NLVW on our PICU by reducing these barriers.

METHODS

A cross-sectional electronic survey was used to collect data from both nurse ventilation weaners and all medical staff and advanced nurse practitioners (ANPs) on one PICU.

RESULTS

Our survey response rates were 90% (36/40) nursing and 54% (20/37) medical. The four top reasons cited for nurses not being able to wean by protocol were not being allocated to a 'weanable' patient, being in an in-charge or runner role, high clinical workload and a perceived lack of support from medical staff/ANPs. The restrictive nature of our protocol also emerged as a key issue by all staff. The medical survey revealed an overwhelming positive response to NLVW with 90% believing that experienced PICU nurses should be allowed to wean ventilation. In contrast to the nurses perceived lack of support or encouragement for NLVW, medical staff rated their encouragement for the nurses to undertake this role as high.

CONCLUSIONS

NLVW is a complex process, and factors that impair or facilitate this process relate not only to the weaning protocol itself, but also organizational processes and structural factors in a PICU.

RELEVANCE TO CLINICAL PRACTICE

This paper highlights the complexities involved in instituting and establishing a nurse-led, protocol-driven ventilation weaning process within a PICU. Further, in depth research is required to examine both PICU nurses and doctors attitudes to NLVW both in the UK and across Europe.

Difficult to wean patients: cultural factors and their impact on weaning decision-making

AIMS AND OBJECTIVES

To examine the elements of the intensive care environment and consider the impact on nurses' involvement in decision-making when weaning from mechanical ventilation.

BACKGROUND

Optimal management of difficult to wean patients requires the dynamic collaboration of all clinicians and the contribution of their knowledge and skills. The introduction of weaning protocols has increased nurses' input in decision-making, but there are various elements of the decision environment that impact on their involvement, which have been given little consideration.

DESIGN

Ethnography was used as the research design for this study.

METHODS

Fieldwork took place in two tertiary hospitals in Greece and Scotland for five months each to unveil clinicians' behaviour and interactions during the weaning practice. Observation was based on the weaning process of 10 Scottish and 9 Greek long-term ventilated patients. Semi-structured interviews followed with nurses (n = 33) and doctors (n = 9) in both settings to understand nurses' perceived involvement in weaning decision-making. Thematic analysis of interviews and field notes followed using the Qualitative Data Analysis software NVivo. Clinicians' participation was voluntary.

RESULTS

The main themes identified were the (1) organisation of the units (time and structure of the ward rounds, staff levels and staff allocation system), (2) the inter- professional relationships, (3) the ownership and accountability in weaning decision-making and (4) the role of the weaning protocols. These elements described the culture of the ICUs and defined nurses' role in weaning decision-making.

CONCLUSIONS

Clinical decision-making is a multi-dynamic process specifically in complex clinical situations such as weaning from mechanical ventilation. This paper suggests that weaning practice should be considered in relation to the elements of the clinical environment to provide an individualised and patient-centred weaning approach.

RELEVANCE TO CLINICAL PRACTICE

Methods to enhance nurses' role in teamwork and collaborative decision-making are suggested.

Perceived decisional responsibility for mechanical ventilation and weaning: a Norwegian survey

AIM

To explore variability in perceptions of nurse managers and physician directors regarding roles, responsibilities and clinical-decision making related to mechanical ventilator weaning in Norwegian intensive care units (ICUs).

BACKGROUND

Effective teamwork is crucial for providing optimal patient care in ICU. More knowledge on nurses' and physicians' perceptions of responsibility in clinical decision-making for mechanical ventilation is needed.

METHODS

Self-administered survey of mechanical ventilation and weaning responsibilities was sent to nurse managers and physician directors of Norwegian adult ICUs. Nurses' decisional influence and autonomy were estimated on a numeric rating scale (NRS) from 0 to 10 (least to most).

RESULTS

Response rate was 38/60 (63%) nurses and 38/52 (73%) physicians. On the NRS nurse managers perceived the autonomy and influence of nurses' ventilator decisions higher than physician directors: median of 7 (IQR 5-8) (nurses) versus 5 (3-6) (physicians), (p < 0·01), and 8 (7-9) (nurses) versus 7 (5-8) (physicians), (p < 0·01) respectively. Respondents agreed that nurses collaborated in assessment of patient response to ventilator changes and titrating ventilator settings: 92% of nurses and 87% of physicians, (p = 0·46), and recognizing weaning failure 84% of nurses and 84% of physicians, (p = 0·96). Physician directors perceived significantly less collaborative decision-making on weaning method (p = 0·01), weaning readiness (p = 0·04) and readiness to extubate (p < 0·01) than nurse managers. Both groups acknowledged the importance of 'knowing the patient' for weaning success, and agreed that the assessment of work of breathing, well-being, and clinical deterioration were important for determining weaning tolerance.

CONCLUSIONS

Nurse managers perceived nurses to have greater autonomy, influence and collaborative interaction regarding decisions on mechanical ventilation than physician directors. Greater awareness and acknowledgment of nurses' role may promote interprofessional collaboration and improve patient care.

Effect of nature-based sound therapy on agitation and anxiety in coronary artery bypass graft patients during the weaning of mechanical ventilation: A randomised clinical trial

BACKGROUND

Weaning from mechanical ventilation is a frequent nursing activity in critical care. Nature-based sound as a non-pharmacological and nursing intervention effective in other contexts may be an efficient approach to alleviating anxiety, agitation and adverse effects of sedative medication in patients undergoing weaning from mechanical ventilation.

OBJECTIVES

This study identified the effect of nature-based sound therapy on agitation and anxiety on coronary artery bypass graft patients during weaning from mechanical ventilation.

METHODS

A randomised clinical trial design was used. 120 coronary artery bypass graft patients aged 45-65 years undergoing weaning from mechanical ventilation were randomly assigned to intervention and control groups. Patients in the intervention group listened to nature-based sounds through headphones; the control group had headphones with no sound. Haemodynamic variables, anxiety levels and agitation were assessed using the Faces Anxiety Scale and Richmond Agitation Sedation Scale, respectively. Patients in both groups had vital signs recorded after the first trigger, at 20 min intervals throughout the procedure, immediately after the procedure, 20 min after extubation, and 30 min after extubation. Data were collected over 5 months from December 2012 to April 2013.

RESULTS

The intervention group had significantly lower anxiety and agitation levels than the control group. Regarding haemodynamic variables, a significant time trend and interaction was reported between time and group (p<0.001). A significant difference was also found between the anxiety (p<0.002) and agitation (p<0.001) scores in two groups.

CONCLUSIONS

Nature-based sound can provide an effective method of decreasing potential adverse haemodynamic responses arising from anxiety and agitation in weaning from mechanical ventilation in coronary artery bypass graft patients. Nurses can incorporate this intervention as a non-pharmacological intervention into the daily care of patients undergoing weaning from mechanical ventilation in order to reduce their anxiety and agitation.

The use of a weaning and extubation protocol to facilitate effective weaning and extubation from mechanical ventilation in patients suffering from traumatic injuries: a non-randomized experimental trial comparing a prospective to retrospective cohort

PURPOSE

Many patients who have suffered traumatic injuries require mechanical ventilation (MV). Weaning is the transition from ventilatory support to spontaneous breathing. The purpose of this study was to determine whether the use of a nurse and a physiotherapist-driven protocol to wean and extubate patients from MV resulted in decreased MV days and intensive care unit (ICU) length of stay (LOS).

METHODS

A prospective cohort of 28 patients (Phase I), weaned according to the protocol developed for the Union Hospital Trauma Unit, was matched retrospectively with a historical cohort of 28 patients (Phase II), weaned according to physician preference. Pairs in the two groups were matched for gender, age, type, and severity of injury.

RESULTS

For mean MV days, the groups did not differ statistically significantly (p 0.3; 14.4 days vs. 16.3 days), although the reduction in MV is clinically significant in view of the complications of additional MV days. The difference of 0.2 days for ICU LOS was not statistically significant (p = 0.9; 20.8 days vs. 21.0 days) demonstrating that the reduction in MV days may not result in the reduction of ICU LOS. The rate of re-intubation was similar between the groups (Phase I = 3/28 vs. Phase II = 4/24).

CONCLUSION

The use of a weaning and extubation protocol led by nursing staff and physiotherapists resulted in a clinically significant reduction in MV time, reducing risk of ventilator-associated complications. The role of physiotherapists and nursing staff in weaning and extubation from MV could be greatly expanded in South African ICUs.

Anaesthetists' perceptions of facilitative weaning strategies from mechanical ventilator in the intensive care unit (ICU): a qualitative interview study

AIM

This study aimed to examine anaesthetists' perceptions of facilitative weaning from the mechanical ventilator in the intensive care unit (ICU).

METHODS

Explorative qualitative interviews in a phenomenographic reference frame with a purposive sample of 14 eligible anaesthetists from four different ICUs with at least one year of clinical experience of ICU and of ventilator weaning.

FINDINGS

Four categories of anaesthetists' perceptions of facilitative decision-making strategies for ventilator weaning were identified. These were the instrumental, the interacting, the process-oriented and the structural strategies" for ventilator weaning. The findings refer to a supportive multidisciplinary holistic ICU quality of care. Choice of strategy for ventilator weaning was flexible and individually tailored to the patients'.

CONCLUSIONS

Choice of strategy was flexible and individually adjustable. Introduction of evidence-based guidelines from ventilator weaning is necessary in the ICU. The guidelines should also cover the responsibilities of various professional groups. Regular evaluations of methods and strategies used in practice need to be implemented. This may facilitate decision-making strategies for ventilator weaning in practice at the ICU. Greater attention needs to focus on family members' experiences. The strategies should be an integral part of continuous staff training.

The factors which influence nurses when weaning patients from mechanical ventilation: findings from a qualitative study

The aim of the study was to describe the factors that influence critical care nurses when deciding to wean patients from mechanical ventilation. The study adopted a qualitative methodology, using semi-structured interviews and a vignette. An invited sample of critical care nurses (n=24) from one Irish intensive care unit was employed. Each nurse was interviewed once and a vignette was used to structure the interview questioning. The findings were analysed using thematic content analysis. Six major themes influencing nurses' decision to wean emerged, as follows: physiological influences; clinical reassessment and decision making; the nurse's experience, confidence and education; the patient's medical history and current ventilation; the intensive care working environment; and use of protocols. The findings highlight the complex nature of weaning patients from mechanical ventilation and the major role of the nurse in this process.

'In a way, you have to pull the patient out of that state …': the competency of ventilator weaning

The introduction of the weaning protocol has reduced weaning time and improved results in patients. However, the evidence is inconsistent. This may reflect that the use of a protocol should not exclude individual considerations and clinical judgement. However, the significant aspects of the context and the competency important in the nurse-patient relationship in weaning have not yet been sufficiently described. This study aimed at exploring these aspects of weaning. Qualitative data from six in-depth interviews and field observations of three experienced intensive care nurses in weaning situations were analysed through systematic text condensation within a hermeneutic-phenomenological approach. Competency appeared to be based on thorough knowledge of physiology and ventilator skills, but also on knowing the patient, helping the nurse connect the meaningless to the meaningful for the patient. Behaving competently involves a continuous dialogue with the situation, observation of the patient's body language and symptoms over a period of time and the ability to see the interrelationships of all these elements. Competency in ventilator weaning may thus be linked to personal qualifications, while it is simultaneously dependent on a professional community that both confirms and acknowledges this competency.

Protocolized vs. non-protocolized weaning for reducing the duration of mechanical ventilation in critically ill adult patients: Cochrane review protocol

AIM

This paper is a report of the protocol for a review to identify, critically appraise and synthesize the best current evidence supporting the use of weaning protocols compared to non-protocolized practice in liberating patients from mechanical ventilation.

BACKGROUND

Patients experiencing difficulty in weaning require a longer hospital stay and have higher morbidity and mortality. Consequently, efforts to reduce weaning time are desirable to reduce the duration of ventilation and related complications. Standardized weaning protocols are safe and effective in reducing the time spent on mechanical ventilation.Notwithstanding, the evidence supporting their use in practice is inconsistent. The discordant results of studies may reflect the fact that protocols vary in composition and are implemented in different environments by various healthcare providers.

DESIGN

The objectives of this review are to compare the total duration of mechanical ventilation between patients weaned using protocols vs. non-protocolized practice; to ascertain differences between protocolized and non-protocolized weaning with regards to mortality, adverse events, quality of life, weaning duration, ICU and hospital stay; and to explore variation in outcomes by the type of ICU, the type of protocol and approach to delivering the protocol. We will search the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library), MEDLINE, EMBASE, CINAHL, ISI Web of Science and LILACS. In addition, we will endeavour to identify unpublished data and contact first authors of studies included in the review to obtain information on unpublished studies or work in progress.

CONCLUSION

This review will provide much needed direction for healthcare professionals in intensive care in terms of both research and practice.

Ventilatory weaning: a case study of protracted weaning

BACKGROUND

Dysfunctional ventilatory weaning response (DVWR) is characterized by interrupted and prolonged weaning. This reflective analysis presents how using nursing diagnoses in critical care can raise awareness of, and provide strategies for, managing problems related to ventilatory weaning.

AIM

To examine and reflect upon why one patient took so long to wean from the ventilator using the structured approach of instrumental case study and nursing diagnosis to explain aspects of the weaning process.

ANALYSIS

This case study examines one patient's experiences around ventilatory weaning using selected nursing diagnoses, exploring the implications that physiological, social, emotional and psychological factors have on both weaning and healing processes in critical care. By using dialogue, an explicit texture is presented of how one patient felt, with particular resonance to the relationships she had and the impact they made. Various nursing diagnoses proved useful in determining why this patient had an extended weaning trajectory and included DVWR, ineffective breathing pattern, impaired spontaneous ventilation, anxiety and impaired verbal communication. There were specific points of interest, in particular her anxiety, which proved a major factor, and her significantly improved functional status after the critical care episode. A DVWR may be minimized by nursing presence, reassurance and respect for patient autonomy. Complex anatomy and physiology contributes to protracted weaning and a DVWR and is compounded by anxiety. Furthermore, there is a significant element of nursing care, timely reassurance and presence, which can have a positive impact on patient well-being.

CONCLUSIONS

This reflective analysis highlights the benefits and importance of the nurse-patient relationship during what was a very protracted ventilatory wean. This shared trajectory enabled significant patient empowerment, and this case study gives the patient the voice she temporarily lost.

Ventilator-associated pneumonia in paediatric intensive care: a literature review

BACKGROUND

Ventilator-associated pneumonia (VAP) has been identified as the most common nosocomial infection in intensive care units (ICUs) with associated health and financial costs. To date, more research has been carried out in adult ICUs than in paediatric units, thus prompting a review and investigation of the implications for paediatric practice.

AIMS

To identify relevant paediatric literature surrounding VAP and use this in association with research carried out in the adult environment to establish the implications of VAP and possible management strategies.

SEARCH STRATEGIES

A literature search was undertaken using databases within DialogDatastar to identify the extent to which VAP has been researched in both paediatric and adult centres. This information was used to try and gain a clearer concept of the impact and management of VAP in the paediatric setting. Key words and combinations included VAP, intensive care, paediatric, antibiotics, positioning, suction, economics, management, nosocomial and morbidity and mortality. RESULTS OF ANALYSIS: Despite the documented significance of VAP in terms of its financial and health implications, discrepancies and inconsistencies exist surrounding the identification and treatment of VAP. This is reflected in paediatric centres by a dearth of literature on the subject and the lack of a national standard as to the management and prevention of VAP. Inappropriate management of VAP plays an important role in the development and spread of multiresistant bacteria within hospitals.

CONCLUSIONS

While inadequate paediatric research exists, extrapolating from adult research suggests that the financial and health costs of VAP are substantial and can be reduced by introducing simple low-cost measures. Such measures include improving education surrounding VAP and its implications and making small changes in practice to improve and maintain oral hygiene standards.

IMPLICATIONS

With a growing cohort of paediatric patients requiring short- and long-term ventilation, progress must be made in identifying the extent and impact of VAP in paediatric ICUs and among the community ventilated patients. This will require changes in practice and attitudes towards VAP for which an appropriate knowledge base would need to be established using audit and research. These issues are particularly relevant in the current environment given the links with multiresistant strains of bacteria within hospitals and the community.

Intensive care nurses’ perceptions of protocol-directed weaning—A qualitative study

The aim of this study was to identify intensive care nurses' perceptions of protocol-directed weaning, by means of focus group interviews and qualitative content analysis. The results showed that the nurses perceived the protocol as useful. When prescribed, it represented interprofessional agreement that allowed them to act in the absence of a physician. It focused on weaning, saved time, was easy to use and led to a feeling of safety and continuity in the weaning process. Barriers to its use were related to lack of instructions from physicians. Nurses reported three ways of handling the situation in the absence of a weaning plan: taking action, waiting, and giving weaning low priority, which could lead to undesired variations. Nurses in this study reported that they would like an interdisciplinary approach to weaning and expressed the need for a shared "language" or knowledge base in order to improve communication. It is important that different disciplines meet to share each other's knowledge. Contact is vital in order to learn about and respect different types of professional knowledge.

Critical care nursing education and practice in Canada and Australia: a comparative review

Critical care nursing is an area of policy concern with respect to staffing projections, skill mix and educational preparation in both Canada and Australia. Despite many similarities between the health systems of these two countries, differences exist in both undergraduate and graduate specialty nursing education. In Australia, specialist education is primarily delivered via the tertiary sector as a formalised qualification, whereas the current Canadian model displays significant variation in duration, content, and mode of delivery. This paper provides a comparative perspective on the educational preparation of critical care nurses in these two countries. Consideration of alternative models of specialty nursing education may provide a method to improve recruitment and retention of staff while maintaining quality of care.