The haemodynamic status of cardiac surgical patients in the initial 2-h recovery period

Background
Critical care nurses caring for cardiac patients in the immediate postoperative period continually make decisions about the implications and treatment of their patients' haemodynamic status.

Aim
The aim of this study was to describe the haemodynamic status of patients on admission to critical care and over the 2-h period following cardiac surgery.

Methods
A quantitative, descriptive design was used. Data were collected using non-participant observation and an observation tool. The sample consisted of 38 patients.

Results
Analysis of data revealed the dynamic nature of the haemodynamic status of postoperative cardiac patients. On admission, 60% of patients (n = 23) were haemodynamically unstable. The instability in these patients (n = 23) was due to hypotension (34%), bleeding (21%) and hypoxaemia (18%). During the 2-h recovery period, 55% of patients were hypotensive, 16% of patients had low cardiac output syndrome and 16% of patients had low systemic vascular resistance (SVR) syndrome. Twenty-one percent of patients experienced bleeding complications. Shivering was a clinically significant problem in terms of occurrence (23%) and duration (X = 45, S.D. = 30 min). Twenty-nine percent of patients (n = 11) had a profound deterioration in haemodynamic status, necessitating urgent interventions.

Conclusion
Haemodynamic parameters indicate that 95% of patients in this study were haemodynamically unstable at some time during the initial 2-h recovery period. These findings inform resourcing decisions by organisations and have implications for nurses' assessment and interventional haemodynamic decision making.

Patient participation in pulmonary interventions to reduce postoperative pulmonary complications following cardiac surgery.

BACKGROUND: Clinical interventions aimed at reducing the incidence of postoperative pulmonary complications necessitate patient engagement and participation in care. Patients' ability and willingness to participate in care to reduce postoperative complications is unclear. Further, nurses' facilitation of patient participation in pulmonary interventions has not been explored. OBJECTIVE: To explore patients' ability and willingness to participate in pulmonary interventions and nurses' facilitation of pulmonary interventions. DESIGN: Single institution, case study design. Multiple methods of data collection were used including preadmission (n=130) and pre-discharge (n=98) patient interviews, naturalistic observations (n=48) and nursing focus group interviews (n=2). SETTING: A cardiac surgical ward of a major metropolitan, tertiary referral hospital in Melbourne, Australia. PARTICIPANTS: One hundred and thirty patients admitted for cardiac surgery via the preadmission clinic during a 1-year period and 40 registered nurses who were part of the permanent workforce on the cardiac surgical ward. OUTCOME MEASURES: Patients' understanding of their role in pulmonary interventions and patients' preference for and reported involvement in pulmonary management. Nurses' facilitation of patients to participate in pulmonary interventions. RESULTS: Patients displayed a greater understanding of their role in pulmonary interventions after their surgical admission than they did at preadmission. While 55% of patients preferred to make decisions about deep breathing and coughing exercises, three-quarters of patients (75%) reported they made decisions about deep breathing and coughing during their surgical admission. Nurses missed opportunities to engage patients in this aspect of pulmonary management. CONCLUSIONS: Patients appear willing to take responsibility for pulmonary management in the postoperative period. Nurses could enhance patient participation in pulmonary interventions by ensuring adequate information and education is provided. Facilitation of patients' participation in their recovery is a fundamental aspect of care delivery in this context.

Patient participation in postoperative care activities in patients undergoing total knee replacement surgery: multimedia intervention for managing patient experience (MIME). Study protocol for a cluster randomised crossover trial

BACKGROUND: Patient participation is an important indicator of quality care. Currently, there is little evidence to support the belief that participation in care is possible for patients during the acute postoperative period. Previous work indicates that there is very little opportunity for patients to participate in care in the acute context. Patients require both capability, in terms of having the required knowledge and understanding of how they can be involved in their care, and the opportunity, facilitated by clinicians, to engage in their acute postoperative care. This cluster randomised crossover trial aims to test whether a multimedia intervention improves patient participation in the acute postoperative context, as determined by pain intensity and recovery outcomes.

METHODS/DESIGN: A total of 240 patients admitted for primary total knee replacement surgery will be invited to participate in a cluster randomised, crossover trial and concurrent process evaluation in at least two wards at a major non-profit private hospital in Melbourne, Australia. Patients admitted to the intervention ward will receive the multimedia intervention daily from Day 1 to Day 5 (or day of discharge, if prior). The intervention will be delivered by nurses via an iPad™, comprising information on the goals of care for each day following surgery. Patients admitted to the control ward will receive usual care as determined by care pathways currently in use across the organization. The primary endpoint is the "worst pain experienced in the past 24 h" on Day 3 following TKR surgery. Pain intensity will be measured using the numerical rating scale. Secondary outcomes are interference of pain on activities of daily living, length of stay in hospital, function and pain following TKR surgery, overall satisfaction with hospitalisation, postoperative complications and hospital readmission.

DISCUSSION: The results of this study will contribute to our understanding of the effectiveness of interventions that provide knowledge and opportunity for patient participation during postoperative in-hospital care in actually increasing participation, and the impact of participation on patient outcomes. The results of this study will also provide data about the barriers and enablers to participation in the acute care context.

Haemodynamic instability after cardiac surgery: nurses` perceptions of clinical decision-making

Background. Cardiac surgical patients are distinguished by their potential for instability in the early postoperative period, highly invasive haemodynamic monitoring technologies and unique clinical presentations as a result of undergoing cardiopulmonary bypass. Little is known about nurses’ perceptions of assuming responsibility for such patients. An nderstanding of nurses’ perceptions may identify areas of practice that can be improved and assist in determining the adequacy of current decision supports.

Aim. The aim of this study was to describe critical care nurses’ perceptions of assuming responsibility for the nursing management of cardiac patients in the initial two-hour postoperative period. Design. An exploratory descriptive study based on naturalistic decision-making.

Methods. Thirty-eight nurses were interviewed immediately following a two-hour observation of their clinical practice. Content analysis and a systematic thematic analysis process called ‘Framework’ were used to analyse the interview transcripts.

Results. Nurses described their perceptions of managing patients in terms of how they felt about making decisions for complex cardiac surgical patients and in terms of how clinical processes unique to the admission phase impacted their decision-making. Nurses felt either daunted or stimulated and challenged when making decisions. Nurses identified handover from anaesthetists, settling in procedures and forms of
collegial assistance as important processes that impacted their decision-making.

Conclusion. Nurses’ previous experiences with similar patients influenced how they felt about making decisions during the initial two-hour postoperative period, but did not alter their views about processes important for patient safety during this time. Relevance to clinical practice. Feelings expressed by nurses in this study highlight the need for clinical supervision and appropriate allocation of resources during the immediate recovery period after cardiac surgery. Nurses identified ways to improve clinical processes that impacted their decision-making during the immediate recovery of cardiac surgical patients.

The frontotemporal-orbitozygomatic approach : reconstructive technique and outcome

Background The frontotemporal-orbitozygomatic (FTOZ) approach, also known as "the workhorse of skull base surgery," has captured the interest of many researchers throughout the years. Most of the studies published have focused on the surgical technique and the gained exposure. However, few studies have described reconstructive techniques or functional and cosmetic outcomes. The goal of this study was to describe the surgical reconstruction after the FTOZ approach and analyze the functional and cosmetic outcomes. Methods Seventy-five consecutive patients who had undergone FTOZ craniotomy for different reasons were selected. The same surgical (one-piece FTOZ) and reconstructive techniques were applied in all patients. The functional outcome was measured by complications related to the surgical approach: retro-orbital pain, exophthalmos, enophthalmos, ocular movement restriction, cranial nerve injuries, pseudomeningocele (PMC) and secondary surgeries required to attain a reconstructive closure. The cosmetic outcome was evaluated by analyzing the satisfaction of the patients and their families. Questionnaires were conducted later in the postoperative period. A statistical analysis of the data obtained from the charts and questions was performed. Results Of the 75 patients studied, 59 had no complications whatsoever. Ocular movement restriction was found in two patients (2.4 %). Cranial nerve injury was documented in seven patients (8.5 %). One patient (1.2 %) underwent surgical repair of a cerebrospinal fluid (CSF) leak from the initial surgery. Two patients (2.4 %) developed delayed postoperative pseudomenigocele. One patient (1.2 %) developed intraparenchymal hemorrhage (IPH). Full responses to the questionnaires were collected from 28 patients giving an overall response rate of 34 %. Overall, 22 patients (78.5 %) were satisfied with the cosmetic outcome of surgery. Conclusion The reconstruction after FTOZ approach is as important as the performance of the surgical technique. Attention to anatomical details and the stepwise reconstruction are a prerequisite to the successful preservation of function and cosmesis. In our series, the orbitozygomatic osteotomy did not increase surgical complications or alter cosmetic outcomes.

Determining criteria to assess patient readiness for discharge from postanaesthetic care: an international Delphi study

Aims and objectives
To obtain expert consensus on essential criteria required to assess patient readiness for discharge from the postanaesthetic care unit.

Background
A patient's condition can deteriorate after surgery, and the immediate postoperative period is recognised internationally as a time of increased risk to patient safety. A recent systematic review identified evidence-based assessment criteria for the safe discharge of patients from the postanaesthetic care unit and identified gaps in the evidence.

Design
Descriptive consensus study using the Delphi method.

Methods
Members of international clinical specialist groups with expertise in anaesthesia or postanaesthetic care participated in three consultation rounds. Online surveys were used to determine expert consensus with regard to aspects of postanaesthetic care and specific criteria for assessing patient readiness for discharge. Three rounds of surveys were conducted from May 2011–September 2012.

Results
Twenty-three experts contributed to the panel. Consensus, that is, at least 75% agreement, was reached in regard to 24 criteria considered essential (e.g. respiratory rate 100%; pain 100%; heart rate 95%; temperature 91%). Consensus was also reached for 15 criteria not considered essential (e.g. appetite 96%; headache 76%). Consensus was not obtained for a further 10 criteria. Participants (95%) agreed that a discharge tool was important to ensure safe patient discharge.

Conclusion
Consensus was achieved by a panel of international experts on the use of a tool to assess patient readiness for discharge from postanaesthesia care unit and specific variables to be included or excluded from the tool. Further work is required to develop a tool and test its reliability and validity.

Relevance to clinical practice
The findings of this study have informed the development of an evidence-based tool to be piloted in a subsequent funded study of nursing assessment of patient readiness for discharge from the postanaesthetic care unit.

Determining criteria to assess patient readiness for discharge from postanaesthetic care: An international Delphi study

Aims and objectives: To obtain expert consensus on essential criteria required to assess patient readiness for discharge from the postanaesthetic care unit. Background: A patient's condition can deteriorate after surgery, and the immediate postoperative period is recognised internationally as a time of increased risk to patient safety. A recent systematic review identified evidence-based assessment criteria for the safe discharge of patients from the postanaesthetic care unit and identified gaps in the evidence. Design: Descriptive consensus study using the Delphi method. Methods: Members of international clinical specialist groups with expertise in anaesthesia or postanaesthetic care participated in three consultation rounds. Online surveys were used to determine expert consensus with regard to aspects of postanaesthetic care and specific criteria for assessing patient readiness for discharge. Three rounds of surveys were conducted from May 2011-September 2012. Results: Twenty-three experts contributed to the panel. Consensus, that is, at least 75% agreement, was reached in regard to 24 criteria considered essential (e.g. respiratory rate 100%; pain 100%; heart rate 95%; temperature 91%). Consensus was also reached for 15 criteria not considered essential (e.g. appetite 96%; headache 76%). Consensus was not obtained for a further 10 criteria. Participants (95%) agreed that a discharge tool was important to ensure safe patient discharge. Conclusion: Consensus was achieved by a panel of international experts on the use of a tool to assess patient readiness for discharge from postanaesthesia care unit and specific variables to be included or excluded from the tool. Further work is required to develop a tool and test its reliability and validity. Relevance to clinical practice: The findings of this study have informed the development of an evidence-based tool to be piloted in a subsequent funded study of nursing assessment of patient readiness for discharge from the postanaesthetic care unit.

Assessment of patient pain in the postoperative context

Because of its subjective nature, the assessment of pain requires the use of comprehensive practices that accurately reflect a patient’s experiences of pain. The purpose of this study was to determine how nurses make decisions in their assessment of patients’ pain in the postoperative clinical setting. An observational design was chosen as the means of examining pain activities in two surgical units of a metropolitan teaching hospital in Melbourne, Australia. Six fixed observation times were selected. Each 2-hour observation period was examined 12 times thus resulting in 74 observations. In total, 316 pain activities were determined. Five themes relating to assessment were identified from the data analysis: simple questioning, use of a pain scale, complex assessment, the lack of pain assessment, and physical examination for pain. The study identified how nurses’ prioritization of work demands created barriers in conducting timely and comprehensive pain assessment decisions.

Nurses' strategies for managing pain in the postoperative setting

Acute pain is a significant problem in the postoperative setting. Patients report a lack of information about pain-control measures and ineffective pain control. Nurses continue to rely on pharmacologic measures and tend to under-administer analgesics. The purpose of this study was to determine the strategies nurses used to manage patients’ pain in the postoperative setting. It also sought to examine the effect of context, including organization of care, nurses’ prioritization of work activities, and pressures during a working shift, on their pain-management strategies. An observational design was used in two surgical units of a metropolitan teaching hospital in Melbourne, Australia. Six fixed observation times were identified as key periods for pain activities, each comprising a 2-hour duration. An observation period was examined at least 12 times, resulting in the completion of 74 observations and the identification of 316 pain cases. Fifty-two nurses were observed during their normal day’s work with postoperative patients. Six themes were identified: managing pain effectively; prioritizing pain experiences for pain management; missing pain cues for pain management; regulators and enforcers of pain management; preventing pain; and reactive management of pain. The findings highlighted the critical nature of communication between clinicians and patients and among clinicians. It also demonstrated the influence of time on management strategies and the relative importance that nurses place on nonpharmacologic measures in actual practice. This research, which portrays what happens in actual clinical practice, has facilitated the identification of new data that were not evident from other research studies.

Safety and efficacy of routine postoperative ibuprofen for pain and disability related to ectopic bone formation after hip replacement surgery (HIPAID): a randomised control trial

Objectives To determine the benefits and risks of a non-steroidal anti-inflammatory drug (NSAID) as prophylaxis for ectopic bone formation in patients undergoing total hip replacement (or revision) surgery.
Design Double blind randomised placebo controlled clinical trial, stratified by treatment site and surgery (primary or revision).
Setting 20 orthopaedic surgery centres in Australia and New Zealand.
Participants 902 patients undergoing elective primary or revision total hip replacement surgery.
Intervention 14 days' treatment with ibuprofen (1200 mg daily) or matching placebo started within 24 hours of surgery.
Main outcome measures Changes in self reported hip pain and physical function 6 to 12 months after surgery (Western Ontario and McMaster University Arthritis index).
Results There were no significant differences between the groups for improvements in hip pain (mean difference -0.1, 95% confidence interval -0.4 to 0.2, P = 0.6) or physical function (-0.1, -0.4 to 0.2, P = 0.5), despite a decreased risk of ectopic bone formation (relative risk 0.69, 0.56 to 0.83) associated with ibuprofen. There was a significantly increased risk of major bleeding complications in the ibuprofen group during the admission period (2.09, 1.00 to 4.39).
Conclusions These data do not support the use of routine prophylaxis with NSAIDs in patients undergoing total hip replacement surgery.
Trial registration NCT00145730.

The relationship between phase and period responses to light pulses

Current theories of stable circadian entrainment postulate phase delays should be associated with period lengthening, while phase advances should be associated with period shortening. While characterising features of the rat PRC to light, we noted substantial numbers of responses that displayed the opposite pattern. Forty-eight rats provided data for 192 phase responses. Limiting our analysis to phase shifts greater than 1 hour, we found 44 displayed the expected predicted relationship, and 33 displayed the contrary paradoxical relationship. Paradoxical responders possessed significantly shorter initial activity periods, compared to predicted responders. Activity was significantly lengthened by paradoxical responders and shortened by predicted responders following light pulse exposure. These results suggest a second mode of stable entrainment. Additionally, these results indicate entrainment mode, predicted or paradoxical, is based upon activity period duration. Short activity period durations will be associated with paradoxical responses, long durations will be associated with predicted responses. We argue that, given the dynamic changes in photoperiod, both modes of entrainment are necessary to provide stable entrainment across the year.

Media/ting change: the print media's role in mediating education policy in a period of radical reform in Victoria, Australia

This paper draws upon critical discourse analysis, cultural studies and communication theory, studies on media and educational reform, and the work of Bernstein, Bourdieu and Luhmann in particular, to explore how the print and media 'mediated' a period of educational change marked by moves to self-management in schools in Victoria, Australia. It considers how the media was mobilized by various education stakeholders, and in turn informed relations between schools and government, through policy discourses and texts. It considers why and how particular themes became media 'issues', how schools and teachers responded to these issues, and how the media was used by various stakeholders in education to shape policy debates. It is based on a year-long qualitative study that explored critical incidents and representations about education in the print media over a year in the daily press. It illustrates the ways in which a neo-liberal Victorian government mobilized the media to gain strategic advantage to promote radical education reform policies, considers the media effects of this media/tion process on schools and teachers, and conceptualizes how school and system performance is fed from and into media representations, public perceptions and community understandings of schools and teachers' work.

Naturalistic decision making: a model to overcome methodological challenges in the study of critical care nurses` decision making about patients` hemodynamic status

The quality of critical care nurses' decision making about patients' hemodynamic status in the immediate period after cardiac surgery is important for the patients' well-being and, at times, survival. The way nurses respond to hemodynamic cues varies according to the nurses' skills, experiences, and knowledge. Variability in decisions is also associated with the inherent complexity of hemodynamic monitoring. Previous methodological approaches to the study of hemodynamic assessment and treatment decisions have ignored the important interplay between nurses, the task, and the environment in which these decisions are made. The advantages of naturalistic decision making as a framework for studying the manner in which nurses make decisions are presented.

The problem of postoperative pain: issues for future research

Uncontrolled postoperative pain continues despite abundant research in the area. The purposes of the paper are to review how past research influences our understanding of pain in the postsurgery context and to argue for a methodological shift towards naturalistic inquiry. Such a shift incorporates the complexities of pain assessment and management in the clinical practice environment. Decisions regarding pain are often examined outside of the contextual concerns of clinical practice. Research approaches have involved analyses of nurse and patient-related factors associated with pain. These approaches do not account for complex interactions that occur between nurses, patients and the dynamic environment in which these interactions take place. The failure of research to address the context of pain decisions has several implications. It limits our understanding of why pain continues despite ongoing research and it does not enable evaluation of clinical strategies to improve pain decision-making and pain outcomes for patients.