Meanings of being critically ill in a sound-intensive ICU patient room - a phenomenological hermeneutical study

The introduction of a sound reduction bundle in the intensive care unit and its impact on sound levels and patients

BACKGROUND

ICU outcomes are continuing to improve. However, this has not been matched by similar improvements of the ICU bedspace environment, which can detrimentally impact on patient outcomes. Excessive sound and noise, especially, has been linked with adverse and potentially preventable patient outcomes and staff errors. There are many sources of sound in the ICU, with alarms from bedside equipment frequently listed as a main source. The number of alarms is increasing in parallel with the introduction of new and more sophisticated technologies to monitor and support patients. However, most alarms are not accurate or critical and are commonly ignored by staff.

OBJECTIVE

The objective of this study was to evaluate the impact of a sound reduction bundle on sound levels, number of alarms, and patients' experience and perceived quality of sleep in the ICU.

METHODS

This was a pre-post, quasi-experimental study investigating the impact of three study interventions implemented sequentially (staff education, visual warnings when sound levels exceeded the preset levels, and monitor alarm reconfigurations). Effects of staff education were evaluated using pre-education and post-education questionnaires, and the impact on patients was evaluated via self-report questionnaires. A sound-level monitor was used to evaluate changes in sound levels between interventions. Alarm audits were completed before and after alarm reconfiguration.

RESULTS

Staff knowledge improved; however, sound levels did not change across interventions. The number of monthly monitor alarms reduced from 600,452 to 115,927. No significant differences were found in patients' subjective rating of their experience and sleep.

CONCLUSION

The interventions did not lead to a sound-level reduction; however, there was a large reduction in ICU monitor alarms without any alarm-related adverse events. As the sources of sound are diverse, multidimensional interventions, including staff education, alarm management solutions, and environmental redesign, are likely to be required to achieve a relevant, lasting, and significant sound reduction.

Noise exposure among staff in intensive care units and the effects of unit-based noise management: a monocentric prospective longitudinal study

BACKGROUND

Intensive care units (ICUs) are often too noisy, exceeding 70-80 dBA, which can have negative effects on staff. The corresponding recommendation of the World Health Organization (average sound pressure level below 35 dBA) is often not achieved. To date there is a lack of intervention studies examining the extent to which unit-based noise management in ICUs contributes to a reduction in noise exposure for the staff. The study therefore aims to provide answers to 1) how unit-based noise management sustainably reduces the subjective noise exposure among staff, and 2) how this intervention affects other noise-related topics.

METHODS

We performed a monocentric prospective longitudinal study with three measurement points in a German university hospital in three ICUs. We collected data from different healthcare professionals and other professional groups between October 2021 and August 2022 using an online questionnaire. Data were analyzed using descriptive and inference statistics.

RESULTS

A total of n = 179 participants took part in the surveys. The majority of participants were nurses or pediatric nurses. Most participants worked more than 75% full-time equivalent. Staff on the three ICUs reported high levels of noise exposure. No significant changes in noise exposure over time were observed. Participants were already aware of the topic and believed that a behavior change could positively influence the noise environment.

CONCLUSIONS

This study provides an initial insight into how a unit-based noise management could contribute to a reduction in the subjective noise exposure among staff in ICUs. The results of this study highlight the importance of this topic. Future studies should aim to research aspects of adherence and their facilitators or barriers, which promote the sustained implementation of noise-reducing measures by staff.

TRIAL REGISTRATION

German Clinical Trials Register (DRKS): DRKS00025835; Date of registration: 12.08.2021.

Patients' lived body experiences in the intensive care unit and beyond - a meta-ethnographic synthesis

INTRODUCTION

Physical therapists supporting patients in intensive care unit (ICU) rehabilitation can improve their clinical practice with insight in patients' lived body experiences.

OBJECTIVE

To gain insight in patients' lived body experiences during ICU stay and in recovery from critical illness.

METHODS

Through a comprehensive systematic literature search, 45 empirical phenomenological studies were identified. Patients' lived body experiences were extracted from these studies and synthesized following the seven-phase interpretative approach as described by Noblit and Hare.

RESULTS

Three lines of argument were illuminated: 1) "recovery from critical illness starts from a situation in which patients experience the lived body as unable;" 2) "patients experience progress in recovery from critical illness when the lived body is empowered;" and 3) "recovery from critical illness results in a lived body changed for life." Eleven third-order constructs were formulated as different kinds of bodies: 1) "an intolerable body;" 2) "an alienated body;" 3) "a powerless body;" 4) "a dependent body;" 5) "a restricted body;" 6) "a muted body;" 7) "a touched body;" 8) "a transforming body;" 9) "a re-discovering body;" 10) "an unhomelike body;" and 11) "a remembering body."

CONCLUSION

Patients' lived body experiences during ICU stay and in recovery from critical illness have richly been described in phenomenological studies and were synthesized in this meta-ethnography.

The needs and experiences of critically ill patients and family members in intensive care unit of a tertiary hospital in Malaysia: a qualitative study

BACKGROUND

Admission to an intensive care unit (ICU) is a stressful experience for patients and their family members. While the focus of management is primarily on medical care, there can be other areas which are overlooked. The purpose of this study was to investigate the needs and experiences of ICU patients and family members.

METHOD

This qualitative study involved four trained researchers conducting in-depth interviews (IDI) based on a semi-structured interview guide. The participants were ICU patients and family members. All IDIs were audio-recorded and transcribed verbatim. Four researchers independently analyzed the data via thematic analysis with the aid of QDA Miner Lite®. The themes and subthemes were generated and confirmed by literature and expert opinion.

RESULTS

Six IDIs were conducted with three patients and three family members, whose ages ranged from 31 to 64 years old. One pair of participants consisted of a patient and his respective family member, while the other four participants did not have a familial relationship with each other. Three main themes emerged from the analysis: (I) critical care services; (II) physical spaces; and (III) monitoring technology. Medical, psychological, physical, and social needs for critical care services were expressed by both patients and family members. Patients' needs in clinical spaces were highlighted as a conducive ICU environment with ambient temperature and controlled noise levels. In non-clinical spaces, family members expressed a need for more chairs in the waiting area. Participants expressed the need for call bells as well as patients' negative perceptions of medical equipment alarms in the ICU when it pertained to monitoring technology.

CONCLUSION

This study provides an in-depth view at the needs and experiences of ICU patients and family members who have a variety of unmet needs. This understanding is critical for guiding ICU personnel and stakeholders in their efforts to humanize ICU care.

Sleep during and following critical illness: A narrative review

Sleep is a complex process influenced by biological and environmental factors. Disturbances of sleep quantity and quality occur frequently in the critically ill and remain prevalent in survivors for at least 12 mo. Sleep disturbances are associated with adverse outcomes across multiple organ systems but are most strongly linked to delirium and cognitive impairment. This review will outline the predisposing and precipitating factors for sleep disturbance, categorised into patient, environmental and treatment-related factors. The objective and subjective methodologies used to quantify sleep during critical illness will be reviewed. While polysomnography remains the gold-standard, its use in the critical care setting still presents many barriers. Other methodologies are needed to better understand the pathophysiology, epidemiology and treatment of sleep disturbance in this population. Subjective outcome measures, including the Richards-Campbell Sleep Questionnaire, are still required for trials involving a greater number of patients and provide valuable insight into patients’ experiences of disturbed sleep. Finally, sleep optimisation strategies are reviewed, including intervention bundles, ambient noise and light reduction, quiet time, and the use of ear plugs and eye masks. While drugs to improve sleep are frequently prescribed to patients in the ICU, evidence supporting their effectiveness is lacking.

Application of Comfort Therapy under eCASH Concept in Acute and Chronic Wound Treatment

INTRODUCTION

Given the new ideas on wound care offered by the eCASH (early Comfort using Analgesia, minimal Sedatives, and maximal Humane care) and the substantial differences in clinical treatment between acute and chronic wounds, we aimed to investigate the effect of comfort therapy under the eCASH concept on analgesic sedation and accelerated wound healing in patients with acute or chronic wounds.

METHODS

This randomized clinical study was conducted in two parts: acute wounds and chronic wounds. Patients with acute wounds were allocated into the acute wound control group (AWCG) and the acute wound experimental group (AWEG). Patients with chronic wounds were allocated into the chronic wound control group (CWCG) and two experimental groups, in which they received intermittent negative pressure therapy (IPTEG) and continuous negative pressure therapy (CPTEG). On the basis of the standard treatment for patients in the control group, eCASH therapy was used in the experimental groups. In addition, pain intensity and procedural anxiety were evaluated using the visual analogue score (VAS) and the Hamilton Anxiety Scale (HAM-A). In addition, clinical effects were assessed on the basis of the size of the surface area, rate of healing, and concentration of pro-inflammatory factors (IL-1, IL-6, TNF-α) and growth factors (VEGF, bFGF, TGF-β1).

RESULTS

Compared with the control group, the VAS score and HAM-A score in the experimental groups were significantly decreased after intervention (P < 0.05). After intervention, the levels of IL-1β, IL-6, and TNF-α in AWEG, IPTEG, and CPTEG were significantly lower than those in AWCG. In addition, the levels of VEGF, bFGF, and TGF-β1 in IPTEG and CPTEG were significantly higher than those in CWCG (P < 0.05).

CONCLUSION

These results indicated that comfort therapy under the eCASH concept has a significant effect on ameliorating the pain and anxiety of patients, reducing the inflammatory reaction during the period of wound healing in the treatment of acute and chronic wounds.

CLINICAL TRIAL REGISTRY

The trial has been registered in the Chinese Clinical Trial Registry (ChiCTR2200057981).

Holding on or letting go? Patient experiences of control, context, and care in oral esketamine treatment for treatment-resistant depression: A qualitative study

BACKGROUND

Ketamine and its enantiomer esketamine represent promising new treatments for treatment-resistant depression (TRD). Esketamine induces acute, transient psychoactive effects. How patients perceive esketamine treatment, and which conditions facilitate optimal outcomes, remains poorly understood. Understanding patient perspectives on these phenomena is important to identify unmet needs, which can be used to improve (es)ketamine treatments.

AIMS

To explore the perspectives of TRD patients participating in "off label" oral esketamine treatment.

MATERIALS AND METHODS

In-depth interviews were conducted with 17 patients (11 women) after a six-week, twice-weekly esketamine treatment program, and subsequently after six months of at-home use. Interviews explored participants' perspectives, expectations, and experiences with esketamine treatment. Audio interviews were transcribed verbatim and analysed following an Interpretative Phenomenological Analysis (IPA) framework.

RESULTS

Key themes included overwhelming experiences; inadequate preparation; letting go of control; mood states influencing session experiences; presence and emotional support, and supportive settings. Patients' attempts to let go and give into vs. attempts to maintain control over occasionally overwhelming experiences was a central theme. Multiple factors influenced patients' ability to give into the experience and appeared to impact their mood and anxiety about future sessions, including level of preparation and education, physical and emotional support, and setting during the session.

CONCLUSION

Better preparation beforehand, an optimized treatment setting, and emotional and psychological support during (es)ketamine sessions can help patients to "let go" and may lead to better quality of care and outcomes. Recommendations to improve quality of patient care in (es)ketamine treatment are provided, including suggestions for the training of nurses and other support staff.

Computer Assisted Patient Monitoring: Associated Patient, Clinical and ECG Characteristics and Strategy to Minimize False Alarms

This chapter is a review of studies that have examined false arrhythmia alarms during in-hospital electrocardiographic (ECG) monitoring in the intensive care unit. In addition, we describe an annotation effort being conducted at the UCSF School of Nursing, Center for Physiologic Research designed to improve algorithms for lethal arrhythmias (i.e., asystole, ventricular fibrillation, and ventricular tachycardia). Background: Alarm fatigue is a serious patient safety hazard among hospitalized patients. Data from the past five years, showed that alarm fatigue was responsible for over 650 deaths, which is likely lower than the actual number due to under-reporting. Arrhythmia alarms are a common source of false alarms and 90% are false. While clinical scientists have implemented a number of interventions to reduce these types of alarms (e.g., customized alarm settings; daily skin electrode changes; disposable vs. non-disposable lead wires; and education), only minor improvements have been made. This is likely as these interventions do not address the primary problem of false arrhythmia alarms, namely deficient and outdated arrhythmia algorithms. In this chapter we will describe a number of ECG features associated with false arrhythmia alarms. In addition, we briefly discuss an annotation effort our group has undertaken to improve lethal arrhythmia algorithms.

Space and place for health and care

Purpose: This discussion paper aims to contribute to a greater understanding of the state of the art of research engaged with conceptual matters of space and place for health and care. Method: The authors, who represent a variety of academic disciplines, discuss and demonstrate the conceptual recognition of space and place in research in health and caring sciences building upon own work and experience. Results: To explore the concepts of space and place for health and care is a research pursuit of utmost importance, and should be made through transdisciplinary research collaborations, whereby spatial theories from various disciplines could be communicated to cultivate truly novel and well-informed research. Furthermore, engaging with relational and topological perceptions of space and place poses methodological challenges to overcome in future research on health and care. Conclusions: We argue that there is a need for accelerating spatially informed research on health and care that is informed by current theories and perspectives on space and place, and transdisciplinary research collaborations are a means to achieving this.

Sleeping Soundlessly in the Intensive Care Unit

An estimated 70% of patients who have been in the Intensive Care Unit (ICU) experience some form of Post-Intensive Care Syndrome (PICS). As a stressful environment, the ICU can be traumatic for any patient; however, the disruption of sleep experienced by patients in ICU negatively impacts their mental status and recovery. One of the most significant contributors to sleep disruption is the constant blare of monitor alarms, many of which are false or redundant. Through multisensory approaches and procedural redesign, the hostile acoustic environment of the ICU that causes so many to suffer from PICS may be alleviated. In this paper, we present suggestions for improving the ICU acoustic environment to possibly reduce the incidence of post-ICU complications such as PICS.

Room Design-A Phenomenological-Hermeneutical Study: A Factor in Creating a Caring Environment

Medical technology has progressed tremendously over the last few decades, but the same development cannot be seen in the design of these intensive care unit environments. Authors report results of a study of evidence-based room design, emphasizing the impact on conveying a caring attitude to patients. Ten nonparticipant observations were conducted in patient rooms with 2 different designs, followed by interviews. The data were analyzed using a phenomenological-hermeneutical approach. The results did not reveal that it was obvious that redesigned spaces resulted in a more caring attitude. The meanings of caring displayed during nursing activities were interpreted by interpreting gazes. Some of the nursing staff had an instrumental gaze, interpreted as caring with a task-orientated approach, while others communicated their caring with an attentive and attuned gaze, where the needs of the patients regulated the working shift. The study findings indicated that caring may not be perceived when nurses use a task-oriented approach. However, when nurses practice a person-centered approach, using an attentive and attuned gaze, caring is conveyed. Caring in intensive care contexts needs to be assisted by a supportive environment design that cultivates the caring approach.

Unplanned extubations in an intensive care unit: Findings from a critical incident technique

BACKGROUND

Patients on mechanical ventilation are at risk of experiencing a potentially life-threatening unplanned extubation in the intensive care unit, which can lead to arrhythmias, bronchial aspiration, difficulty in reintubation or even sudden cardiac arrest. Although incidence and outcomes of the phenomenon have been documented in several quantitative studies, no studies have investigated the antecedents as experienced by critical care nurses.

OBJECTIVES

To gain a greater understanding of the antecedents of unplanned extubations.

METHODS

A qualitative study design involving the critical-incident technique. A total of 10 registered nurses who reported one or more episodes of unplanned extubations were involved in an in-depth interview.

FINDINGS

According to the nurses' experience, episodes of unplanned extubations are determined by predisposing, precipitating and mediating factors. The predisposing factors have been recognised in the (a) weaning programme (expected/unexpected decreased sedation) and in the (b) patient factors (increased needs due to discomfort, restlessness and desire to communicate). The precipitating factors have been divided into (a) organisational (failures in multi-professional communication), (b) environmental (excessive environmental chaos and barriers preventing direct surveillance) and (c) nursing care factors (ensuring privacy by creating barriers, avoiding disturbing other patients and poor nurse-to-patient ratio). Among the mediating factors, which are affected by the precipitating factors, decreased surveillance and mechanical restraints' use have been identified.

CONCLUSION

Identifying risk factors of unplanned extubation, specifically those that are modifiable, such as increasing interprofessional communication, reducing excessive environment chaos, implementing strategies aimed at overcoming barriers threatening direct surveillance and ensuring appropriate nurse-to-patient ratio, can prevent the occurrence of these events.

A literature review of comfort in the paediatric critical care patient

AIMS AND OBJECTIVES

To investigate the meaning of comfort and to contextualise it within the framework of paediatric critical care.

BACKGROUND

The concept of comfort is closely linked to care in all health contexts. However, in specific settings such as the paediatric critical care unit, it takes on particular importance.

DESIGN

A literature review was conducted.

METHODS

A literature search was performed of articles in English and Spanish in international health science databases, from 1992-March 2017, applying the quality standards established by the PRISMA methodology and the Joanna Briggs Institute.

RESULTS

A total of 1,203 publications were identified in the databases. Finally, 59 articles which met the inclusion criteria were entered in this literature review. Almost all were descriptive studies written in English and published in Europe. The concept of comfort was defined as the immediate condition of being strengthened through having the three types of needs (relief, ease and transcendence) addressed in the four contexts of experience (physical, psychospiritual, social and environmental). Only two valid and reliable tools for assessing comfort were found: the Comfort Scale and the Comfort Behavior Scale.

CONCLUSIONS

Comfort is subjective and difficult to assess. It has four facets: physical, emotional, social and environmental. High levels of noise and light are the inputs that cause the most discomfort. Comfort is a holistic, universal concept and an important component of quality nursing care.

Innovative Designs for the Smart ICU

Successfully designing a new ICU requires clarity of vision and purpose and the recognition that the patient room is the core of the ICU experience for patients, staff, and visitors. The ICU can be conceptualized into three components: the patient room, central areas, and universal support services. Each patient room should be designed for single patient use and be similarly configured and equipped. The design of the room should focus upon functionality, ease of use, healing, safety, infection control, communications, and connectivity. All aspects of the room, including its infrastructure; zones for work, care, and visiting; environment, medical devices, and approaches to privacy; logistics; and waste management, are important elements in the design process. Since most medical devices used at the ICU bedside are really sophisticated computers, the ICU needs to be capable of supporting the full scope of medical informatics. The patient rooms, the central ICU areas (central stations, corridors, supply rooms, pharmacy, laboratory, staff lounge, visitor waiting room, on-call suite, conference rooms, and offices), and the universal support services (infection prevention, finishings and flooring, staff communications, signage and wayfinding, security, and fire and safety) work best when fully interwoven. This coordination helps establish efficient and safe patient throughput and care and fosters physical and social cohesiveness within the ICU. A balanced approach to centralized and decentralized monitoring and logistics also offers great flexibility. Synchronization of the universal support services in the ICU with the hospital's existing systems maintains unity of purpose and continuity across the enterprise and avoids unnecessary duplication of efforts.

Rethinking the intensive care environment: considering nature in nursing practice

AIMS AND OBJECTIVES

With consideration of an environmental concept, this paper explores evidence related to the negative impacts of the intensive care unit environment on patient outcomes and explores the potential counteracting benefits of 'nature-based' nursing interventions as a way to improve care outcomes.

BACKGROUND

The impact of the environment in which a patient is nursed has long been recognised as one determinant in patient outcomes. Whilst the contemporary intensive care unit environment contains many features that support the provision of the intensive therapies the patient requires, it can also be detrimental, especially for long-stay patients.

DESIGN

This narrative review considers theoretical and evidence-based literature that supports the adoption of nature-based nursing interventions in intensive care units.

METHODS

Research and theoretical literature from a diverse range of disciplines including nursing, medicine, psychology, architecture and environmental science were considered in relation to patient outcomes and intensive care nursing practice.

CONCLUSION

There are many nature-based interventions that intensive care unit nurses can implement into their nursing practice to counteract environmental stressors. These interventions can also improve the environment for patients' families and nurses.

RELEVANCE TO CLINICAL PRACTICE

Intensive care unit nurses must actively consider and manage the environment in which nursing occurs to facilitate the best patient outcomes.

"I Can Remember Sort of Vivid People…but to Me They Were Plasticine." Delusions on the Intensive Care Unit: What Do Patients Think Is Going On?

INTRODUCTION

Patients who develop intensive care unit (ICU) acquired delirium stay longer in the ICU, and hospital, and are at risk of long-term mental and physical health problems. Despite guidelines for patient assessment, risk limitation, and treatment in the ICU population, delirium and associated delusions remain a relatively common occurrence on the ICU. There is considerable information in the literature describing the incidence, suspected causes of, and discussion of the benefits and side-effects of the various treatments for delirium in the ICU. But peer-reviewed patient-focused research is almost non-existent. There is therefore a very limited understanding of the reality of delusions in the intensive care unit from the patient's point of view.

METHOD

A secondary analysis of the original interviews conducted by the University of Oxford Health Experiences Research Group was undertaken to explore themes relating specifically to sleep and delirium.

RESULTS

Patients describe a liminal existence on the ICU. On the threshold of consciousness their reality is uncertain and their sense of self is exposed. Lack of autonomy in an unfamiliar environment prompts patients to develop explanations and understandings for themselves with no foothold in fact.

CONCLUSION

Patients on the ICU are perhaps more disoriented than they appear and early psychological intervention in the form of repeated orientation whilst in the ICU might improve the patient experience and defend against development of side-effects.

A human factors perspective on medical device alarms: problems with operating alarming devices and responding to device alarms

Medical devices emit alarms when a problem with the device or with the patient needs to be addressed by healthcare personnel. At present, problems with device alarms are frequently discussed in the literature, the main message being that patient safety is compromised because device alarms are not as effective and safe as they should - and could - be. There is a general consensus that alarm-related hazards result, to a considerable degree, from the interactions of human users with the device. The present paper addresses key aspects of human perception and cognition that may relate to both operating alarming devices and responding to device alarms. Recent publications suggested solutions to alarm-related hazards associated with usage errors based on assumptions on the causal relations between, for example, alarm management and human perception, cognition, and responding. However, although there is face validity in many of these assumptions, future research should provide objective empirical evidence in order to deepen our understanding of the actual causal relationships, and hence improve and expand the possibilities for taking appropriate action.

To feel strong in an unfamiliar situation; Patients' lived experiences of neurosurgical intensive care. A qualitative study

AIM

The aim of this study was to explore the lived experiences of conscious patients in neurosurgical intensive care.

METHOD

Data collection was performed by qualitative interviews using an interview guide. Eleven former patients, seven women and four men, were interviewed two to 14 months after discharge. The interviews were recorded and transcribed verbatim and analysed using an interpretive phenomenological approach.

FINDINGS

The analysis revealed three themes: To feel safe in an unfamiliar situation, to experience strains and limitations, and to be confirmed as a human being. These three themes culminated in the essence: To feel strong in an unfamiliar situation. Patients experienced a soothing environment where, despite strains, they felt safe being cared for in a ward with specialised medical treatment. When mental and physical strains decreased during the period of care, they experienced the ability to cope with the simplest tasks as a sign of regained identity.

CONCLUSION

Patients' main experience during intensive care was security. Security along with human contact and interaction with staff and next of kin made the patients feel strengthened as human beings in an unfamiliar situation. The fact that the patients were conscious enabled them to understand their situation and to experience security.

Let there be light and darkness: findings from a prestudy concerning cycled light in the intensive care unit environment

The present study reports findings concerning light in an intensive care unit setting presented from 3 aspects, giving a wide view. The first part is a systematic review of intervention studies concerning cycled light compared with dim light/noncycled light. The findings showed that cycled light may be beneficial to preterm infant health. Second, a lighting intervention in the intensive care unit is presented, comparing and assessing experience of this lighting environment with that of an ordinary room. Significant differences were shown in hedonic tone, favoring the intervention environment. In the third part, measured illuminance, luminance, and irradiance values achieved in the lighting intervention room and ordinary room lighting are reported.

The meaning of learning to live with medically unexplained symptoms as narrated by patients in primary care: a phenomenological-hermeneutic study

BACKGROUND

Although research about medically unexplained symptoms (MUS) is extensive, problems still affect a large group of primary care patients. Most research seems to address the topic from a problem-oriented, medical perspective, and there is a lack of research addressing the topic from a perspective viewing the patient as a capable person with potential and resources to manage daily life. The aim of the present study is to describe and interpret the experiences of learning to live with MUS as narrated by patients in primary health-care settings.

METHODS

A phenomenological-hermeneutic method was used. Narrative interviews were performed with ten patients suffering from MUS aged 24-61 years. Data were analysed in three steps: naive reading, structural analysis, and comprehensive understanding.

FINDINGS

The findings revealed a learning process that is presented in two themes. The first, feeling that the symptoms overwhelm life, involved becoming restricted and dependent in daily life and losing the sense of self. The second, gaining insights and moving on, was based on subthemes describing the patients' search for explanations, learning to take care of oneself, as well as learning to accept and becoming mindful. The findings were reflected against Antonovsky's theory of sense of coherence and Kelly's personal construct theory. Possibilities and obstacles, on an individual as well as a structural level, for promoting patients' capacity and learning were illuminated.

CONCLUSIONS

Patients suffering from MUS constantly engage in a reflective process involving reasoning about and interpretation of their symptoms. Their efforts to describe their symptoms to healthcare professionals are part of this reflection and search for meaning. The role of healthcare professionals in the interpretative process should be acknowledged as a conventional and necessary care activity.

Sleeping on a problem: the impact of sleep disturbance on intensive care patients - a clinical review

Sleep disturbance is commonly encountered amongst intensive care patients and has significant psychophysiological effects, which protract recovery and increases mortality. Bio-physiological monitoring of intensive care patients reveal alterations in sleep architecture, with reduced sleep quality and continuity. The etiological causes of sleep disturbance are considered to be multifactorial, although environmental stressors namely, noise, light and clinical care interactions have been frequently cited in both subjective and objective studies. As a result, interventions are targeted towards modifiable factors to ameliorate their impact. This paper reviews normal sleep physiology and the impact that sleep disturbance has on patient psychophysiological recovery, and the contribution that the clinical environment has on intensive care patients' sleep.

Sleep in the Intensive Care Unit

Patients in the intensive care unit (ICU) are susceptible to sleep deprivation. Disrupted sleep is associated with increased morbidity and mortality in the critically ill patients. The etiology of sleep disruption is multifactorial. The article reviews the literature on sleep in the ICU, the effects of sleep deprivation, and strategies to promote sleep in the ICU. Until the impact of disrupted sleep is better explained, it is appropriate to provide critically ill patients with consolidated, restorative sleep.

Analysis of the soundscape in an intensive care unit based on the annotation of an audio recording

The acoustic environments in hospitals, particularly in intensive care units (ICUs), are characterized by frequent high-level sound events which may negatively affect patient outcome. Many studies performed acoustic surveys, but the measurement protocol was not always reported in detail, and the scope of analysis was limited by the selected mode of sound level meters. Fewer studies systematically investigated the noise sources in ICUs by employing an observer in the patient room, which may potentially bias the measurement. In the current study, the soundscape of an ICU was evaluated where acoustic parameters were extracted from a ∼67-h audio recording, and a selected 24-h recording was annotated off-line for a source-specific analysis. The results showed that the patient-involved noise accounted for 31% of the acoustic energy and 11% of the predicted loudness peaks (PLPs). Excluding the patient-involved noise, the remaining acoustic energy was attributed to staff members (57%), alarms (30%), and the operational noise of life-supporting devices (13%). Furthermore, the contribution of each noise category to the PLPs was found to be more uneven: Staff (92%), alarms (6%), and device noise (2%). The current study suggests that most of the noise sources in ICUs may be associated with modifiable human factors.