Effects of nurse-led sedation protocols on mechanically ventilated intensive care adults: A systematic review and meta-analysis

Weaning-associated interventions for ventilated intensive care patients: A scoping review

BACKGROUND

Mechanical ventilation is a core intervention in critical care, but may also lead to negative consequences. Therefore, ventilator weaning is crucial for patient recovery. Numerous weaning interventions have been investigated, but an overview of interventions to evaluate different foci on weaning research is still missing.

AIM

To provide an overview of interventions associated with ventilator weaning.

STUDY DESIGN

We conducted a scoping review. A systematic search of the Medline, CINAHL and Cochrane Library databases was carried out in May 2023. Interventions from studies or reviews that aimed to extubate or decannulate mechanically ventilated patients in intensive care units were included. Studies concerning children, outpatients or non-invasive ventilation were excluded. Screening and data extraction were conducted independently by three reviewers. Identified interventions were thematically analysed and clustered.

RESULTS

Of the 7175 records identified, 193 studies were included. A total of six clusters were formed: entitled enteral nutrition (three studies), tracheostomy (17 studies), physical treatment (13 studies), ventilation modes and settings (47 studies), intervention bundles (42 studies), and pharmacological interventions including analgesic agents (8 studies), sedative agents (53 studies) and other agents (15 studies).

CONCLUSIONS

Ventilator weaning is widely researched with a special focus on ventilation modes and pharmacological agents. Some aspects remain poorly researched or unaddressed (e.g. nutrition, delirium treatment, sleep promotion).

RELEVANCE TO CLINICAL PRACTICE

This review compiles studies on ventilator weaning interventions in thematic clusters, highlighting the need for multidisciplinary care and consideration of various interventions. Future research should combine different interventions and investigate their interconnection.

Factors that influence critical care nurses' management of sedation for ventilated patients in critical care: A qualitative study

BACKGROUND

Optimising sedation use is key to timely extubation. Whilst sedation protocols may be used to guide critical care nurses' management of sedation, sedation management and decision-making is complex, influenced by multiple factors related to patients' circumstances, intensive care unit design and the workforce.

AIM

To explore (i) critical care nurses' experiences managing sedation in mechanically ventilated patients and (ii) the factors that influence their sedation-related decision-making.

DESIGN

Qualitative descriptive study using semi-structured interviews. Data were analysed using Braun and Clarke's six-step thematic analysis.

SETTING AND PARTICIPANTS

This study was conducted in a 26-bed level 3 accredited ICU, in a private hospital in Melbourne, Australia. The majority of patients are admitted following elective surgery. Critical care nurses, who were permanently employed as a registered nurse, worked at least 16 h per week, and cared for ventilated patients, were invited to participate.

FINDINGS

Thirteen critical care nurses participated. Initially, participants suggested their experiences managing sedation were linked to local unit policy and learning. Further exploration revealed that experiences were synonymous with descriptors of factors influencing sedation decision-making according to three themes: (i) Learning from past experiences, (ii) Situational awareness and (iii) Prioritising safety. Nurses relied on their cumulative knowledge from prior experiences to guide decision-making. Situational awareness about other emergent priorities in the unit, staffing and skill-mix were important factors in guiding sedation decision-making. Safety of patients and staff was essential, at times overriding goals to reduce sedation.

CONCLUSION

Sedation decision making cannot be considered in isolation. Rather, sedation decision making must take into account outcomes of patient assessment, emergent priorities, unit and staffing factors and safety concerns.

IMPLICATIONS FOR CLINICAL PRACTICE

Opportunities for ongoing education are essential to promote nurses' situational awareness of other emergent unit priorities, staffing and skill-mix, in addition to evidence-based sedation management and decision making.

Position Statement of ISCCM Committee on Weaning from Mechanical Ventilator

Background and purpose

Weaning from a mechanical ventilator is a milestone in the recovery of seriously ill patients in Intensive care. Failure to wean and re-intubation adversely affects the outcome. The method of mechanical ventilation (MV) varies between different ICUs and so does the practice of weaning. Therefore, updated guidelines based on contemporary literature are designed to guide intensivists in modern ICUs. This is the first ISCCM Consensus Statement on weaning complied by a committee on weaning. The recommendations are intended to be used by all the members of the ICU (Intensivists, Registrars, Nurses, and Respiratory Therapists).

Methods

A Committee on weaning from MV, formed by the Indian Society of Critical Care Medicine (ISCCM) has formulated this statement on weaning from mechanical ventilators in intensive care units (ICUs) after a review of the literature. Literature was first circulated among expert committee members and allotted sections to each member. Sections of the statement written by sectional authors were peer-reviewed on multiple occasions through virtual meetings. After the final manuscript is accepted by all the committee members, it is submitted for peer review by central guideline committee of ISCCM. Once approved it has passed through review by the Editorial Board of IJCCM before it is published here as "ISCCM consensus statement on weaning from mechanical ventilator". As per the standard accepted for all its guidelines of ISCCM, we followed the modified grading of recommendations assessment, development and evaluation (GRADE) system to classify the quality of evidence and strength of recommendation. Cost-benefit, risk-benefit analysis, and feasibility of implementation in Indian ICUs are considered by the committee along with the strength of evidence. Type of ventilators and their modes, ICU staffing pattern, availability of critical care nurses, Respiratory therapists, and day vs night time staffing are aspects considered while recommending for or against any aspect of weaning.

Result

This document makes recommendation on various aspects of weaning, namely, definition, timing, weaning criteria, method of weaning, diagnosis of failure to wean, defining difficult to wean, Use of NIV, HFOV as adjunct to weaning, role of tracheostomy in weaning, weaning in of long term ventilated patients, role of physiotherapy, mobilization in weaning, Role of nutrition in weaning, role of diaphragmatic ultrasound in weaning prediction etc. Out of 42 questions addressed; the committee provided 39 recommendations and refrained from 3 questions. Of these 39; 32 are based on evidence and 7 are based on expert opinion of the committee members. It provides 27 strong recommendations and 12 weak recommendations (suggestions).

Conclusion

This guideline gives extensive review on weaning from mechanical ventilator and provides various recommendations on weaning from mechanical ventilator. Though all efforts are made to make is as updated as possible one needs to review any guideline periodically to keep it in line with upcoming concepts and standards.

How to cite this article

Clerk AM, Shah RJ, Kothari J, Sodhi K, Vadi S, Bhattacharya PK, et al. Position Statement of ISCCM Committee on Weaning from Mechanical Ventilator. Indian J Crit Care Med 2024;28(S2):S233-S248.

Facilitators, barriers and acceptability of implementing a communication board in Sri Lankan intensive care units: A qualitative descriptive study

OBJECTIVES

To explore patients' and nurses' views of potential facilitators, barriers, and prospective acceptability of implementing a communication board in Sri Lankan intensive care units.

DESIGN

A qualitative, descriptive study.

RESEARCH METHODOLOGY

Eight patients who received mechanical ventilation and nine nurses who worked in adult medical and surgical intensive care units were purposively selected. Data were collected via audio-taped, semi-structured, face-to-face interviews in January/February 2023. Interview guide questions were informed by the knowledge-to-action framework and the theoretical framework of acceptability. Data were analysed using inductive and deductive content analysis. The 32-item checklist of the consolidated criteria for reporting qualitative research (COREQ) was used to ensure the quality of reporting.

SETTING

A 3,000 bed Sri Lankan teaching hospital with 18 intensive care units.

FINDINGS

Four categories reflecting patients' and nurses' anticipated use of the board were found. The first category described patients' and nurses' 'readiness to use the communication board' and their positive attitudes towards it. The second category focused on the 'potential benefits of the communication board', while the third category emphasised the 'individual patient characteristics' that should be taken into consideration when implementing communication boards. The final category described practical aspects related to 'integrating communication boards into routine practice'.

CONCLUSION

This study demonstrates communication boards may improve communication between ventilated patients and nurses, and they are acceptable to end users. Adopting these tools may be a pivotal step to enhancing patient-centred care in demanding intensive care settings.

IMPLICATIONS FOR CLINICAL PRACTICE

An inability to communicate effectively with ventilated intensive care patients creates negative experiences for both patients and nurses. Communication boards may act as a medium to better understand patients' needs during mechanical ventilation.Understanding patients' and nurses' views is beneficial when designing patient-centred communication interventions in intensive care units.

Norepinephrine weaning guided by the Hypotension Prediction Index in vasoplegic shock after cardiac surgery: protocol for a single-centre, open-label randomised controlled trial - the NORAHPI study

INTRODUCTION

Norepinephrine (NE) is the first-line recommended vasopressor for restoring mean arterial pressure (MAP) in vasoplegic syndrome (vs) following cardiac surgery with cardiopulmonary bypass. However, solely focusing on target MAP values can lead to acute hypotension episodes during NE weaning. The Hypotension Prediction Index (HPI) is a machine learning algorithm embedded in the Acumen IQ device, capable of detecting hypotensive episodes before their clinical manifestation. This study evaluates the clinical benefits of an NE weaning strategy guided by the HPI.

MATERIAL AND ANALYSIS

The Norahpi trial is a prospective, open-label, single-centre study that randomises 142 patients. Inclusion criteria encompass adult patients scheduled for on-pump cardiac surgery with postsurgical NE administration for vs patient randomisation occurs once they achieve haemodynamic stability (MAP>65 mm Hg) for at least 4 hours on NE. Patients will be allocated to the intervention group (n=71) or the control group (n=71). In the intervention group, the NE weaning protocol is based on MAP>65 mmHg and HPI<80 and solely on MAP>65 mm Hg in the control group. Successful NE weaning is defined as achieving NE weaning within 72 hours of inclusion. An intention-to-treat analysis will be performed. The primary endpoint will compare the duration of NE administration between the two groups. The secondary endpoints will include the prevalence, frequency and time of arterial hypotensive events monitored by the Acumen IQ device. Additionally, we will assess cumulative diuresis, the total dose of NE, and the number of protocol weaning failures. We also aim to evaluate the occurrence of postoperative complications, the length of stay and all-cause mortality at 30 days.

ETHICS AND DISSEMINATION

Ethical approval has been secured from the Institutional Review Board (IRB) at the University Hospital of Amiens (IRB-ID:2023-A01058-37). The findings will be shared through peer-reviewed publications and presentations at national and international conferences.

TRIAL REGISTRATION NUMBER

NCT05922982.

Analysis of the current status of "pseudo" unplanned endotracheal extubation in ICU patients in China's tertiary hospitals

To analyze the current status of "pseudo" unplanned endotracheal extubation in ICU patients in China's tertiary hospitals and to provide a reference for improving the quality of medical care. Through the National Nursing Quality Data Platform, unplanned endotracheal extubation data reported by ICUs in China's tertiary hospitals from 2019 to 2022 were analyzed. The situation of reported hospitals, causes, and the current status of "pseudo" unplanned endotracheal extubation in ICU patients was analyzed. The indicator of unplanned endotracheal extubation in ICUs of China's tertiary hospitals is mainly from first-class tertiary hospitals (74.9%), most of which are self-extractions by patients (74.6%). The proportion of "pseudo" unplanned endotracheal extubation is 45.1%. "Pseudo" unplanned endotracheal extubation is common in the ICUs of China's tertiary hospitals. As such, management blind spots deserve attention from managers and clinical staff.

Evaluating the carbon footprint of sedation practices in intensive care

BACKGROUND

Healthcare's carbon footprint contributes to 4.4% of global net emissions and intensive care units (ICUs) are very resource intensive. Existing studies on environmental sustainability in ICUs focused on carbon footprint generated from energy and electricity consumption, use of medical consumables and equipment, but few studies quantified carbon footprint generated from pharmaceuticals used in ICUs.

AIM

To evaluate carbon footprint arising from sedation practices in the ICUs.

STUDY DESIGN

A pilot, prospective observational study was conducted in two ICUs from 1 August to 22 September 2022 in Singapore General Hospital. Adult patients who were consecutively sedated, intubated and expected to be mechanically ventilated for at least 24 h were included. Total amount of analgesia and sedatives used and wasted in eligible patients were collected. Carbon emission from ICU sedation practices were then quantified using available life cycle assessment data.

RESULTS

A total of 31 patients were recruited. Top analgesia and sedative used in both ICUs were fentanyl and propofol, respectively. Carbon footprint from sedative usage and wastage across 7 weeks in both ICUs were 2.206 kg CO2-e and 0.286 g CO2-e, respectively. In total, this equates to driving 15.8 km by car. Proportion of drug wasted ranged from 5.1% to 25.0%, with the top reason for wastage being the drug was no longer clinically indicated. Recommendations to reduce carbon footprint include choosing sedatives with lower carbon emissions where possible and having effective communication among doctors and nurses regarding management plans to minimize unnecessary wastage.

CONCLUSION

Our study quantified carbon footprint arising from sedation practices, mainly drug usage and wastage in two ICUs in Singpore General Hospital.

RELEVANCE TO CLINICAL PRACTICE

Adopting a holistic approach to environmental sustainability in the ICU, sedation practices also contribute to generating greenhouse gases, albeit small, and can be targeted to reduce unnecessary carbon footprint.

Nurses' Knowledge and Subjective Strain in Delirium Care: Impact of a Web-based Instructional Module on Nurses Competence

Background

Delirium, a prevalent condition among elderly individuals admitted to hospitals, particularly in intensive care settings, necessitates specialized medical intervention. The present study assessed the proficiency of nurses in the management of delirium and their subjective experience of stress while providing care for patients with delirium in emergency rooms and critical care units.

Materials and methods

The study adopted a quantitative descriptive approach, utilizing standardized self-reporting measures that assessed the nurses' expertise and perceived burden of care. A cohort of 86 nurses from a tertiary care hospital in North India participated in the study. Additionally, the impact of the web-based instructional module in enhancing the nurses' knowledge in delirium management was assessed by one group pretest-posttest quasi-experimental study.

Findings

The research revealed that nurses exhibited significant deficiencies in their knowledge, particularly in relation to the symptoms and causes of delirium. The most significant source of subjective stress was attributed to hyperactive delirium-associated behaviors, characterized by uncooperative and aggressive conduct. The utilization of the web-based instructional program significantly enhanced the comprehension of nurses about the management of delirium.

Conclusion

This study revealed a significant knowledge gap among nurses in delirium management and emphasizes the considerable subjective stress, particularly in dealing with hyperactive delirium-associated behaviors. The positive impact of the web-based instructional program underscores its potential as a valuable tool for enhancing nurses' knowledge and addressing these challenges in healthcare settings.

How to cite this article

Jose S, Cyriac MC, Dhandapani M. Nurses' Knowledge and Subjective Strain in Delirium Care: Impact of a Web-based Instructional Module on Nurses Competence. Indian J Crit Care Med 2024;28(2):111-119.

Psychological stress and associated factors in caring for patients with delirium among intensive care unit nurses: A cross-sectional study

BACKGROUND

Caring for patients with delirium is challenging and overwhelming for intensive care unit (ICU) nurses. Investigating the psychological impact of delirium care on ICU nurses is crucial to maintaining their psychological health and improving the quality of care.

OBJECTIVE

The objective of this study was to investigate the psychological stress of ICU nurses in caring for patients with delirium and potential factors.

METHODS

A total of 355 nurses from three tertiary care hospitals in Hunan Province, China, participated in this cross-sectional survey. Data were collected using the demographic sheet, Impact of Event Scale-Revised, Connor-Davidson Resilience Scale, and Occupational Coping Self-Efficacy Scale for Nurses. Descriptive and multiple linear regression analyses were used to examine the factors associated with psychological stress.

RESULTS

ICU nurses suffered moderate psychological stress related to delirium care. The recent time to care for patients with delirium (P < 0.001), familiarity with delirium-related knowledge (P = 0.002), satisfaction with delirium-related support (P = 0.046), psychological resilience (P < 0.001), and occupational coping self-efficacy (P < 0.001) were significant contributors to psychological stress.

CONCLUSION

Nurse managers and researchers need to focus on the psychological well-being of ICU nurses in caring for patients with delirium, especially those who are currently caring for patients with delirium, and provide tailored support, increase their knowledge of delirium, and also boost psychological resilience and coping skills.

Reducing Central Line Utilization by Peripherally Infusing Vasopressors

BACKGROUND

Central line-associated bloodstream infection is a preventable contributor to excess death and excess cost in the health care system. Vasopressor infusion is one of the primary reasons for central line placement. In the medical intensive care unit (MICU) at an academic medical center, there was no standard practice for peripheral versus central infusion of vasopressors.

OBJECTIVE

The objective of this quality improvement project was to implement an evidence-based, nurse-driven protocol to guide the peripheral infusion of vasopressors. The goal was to reduce central line utilization by 10%.

METHODS

Education on the protocol was provided to the MICU nurses, MICU residents, and crisis nurses, followed by a 16-week implementation period. Nursing staff were also surveyed preimplementation and postimplementation of the protocol.

RESULTS

Central line utilization was reduced by 37.9%, and there were no central line-associated bloodstream infections recorded during project implementation. Most of the nursing staff indicated that use of the protocol increased their confidence in administering vasopressors without a central line. No significant extravasation events occurred.

DISCUSSION

Although a causal link between implementation of this protocol and reduction of central line utilization cannot be established, the reduction is clinically meaningful given the known risks of central lines. Increased nursing staff confidence also provides support for continued use of the protocol.

CONCLUSION

A nurse-driven protocol to guide the peripheral infusion of vasopressors can be effectively implemented into nursing practice.

Tools Are Needed to Promote Sedation Practices for Mechanically Ventilated Patients

Suboptimal sedation practices continue to be frequent, although the updated guidelines for management of pain, agitation, and delirium in mechanically ventilated (MV) patients have been published for several years. Causes of low adherence to the recommended minimal sedation protocol are multifactorial. However, the barriers to translation of these protocols into standard care for MV patients have yet to be analyzed. In our view, it is necessary to develop fresh insights into the interaction between the patients' responses to nociceptive stimuli and individualized regulation of patients' tolerance when using analgesics and sedatives. By better understanding this interaction, development of novel tools to assess patient pain tolerance and to define and predict oversedation or delirium may promote better sedation practices in the future.

The Effect of Sedation Protocol on Sedation Level and Pharmacological and Non-Pharmacological Interventions on Mechanically Ventilated Patients

Background:

The use of analgesics and sedatives to provide sedation for Patients in Intensive Care Unit (ICU) is inevitable. The present study aimed to determine the effect of sedation protocol using the Richmond Agitation- Sedation Scale on sedation level and amount of pharmacological and non-pharmacological interventions on patients under mechanical ventilation.

Materials and Methods:

This randomized clinical trial was conducted on 79 patients under mechanical ventilation in Zanjan. The patients were recruited using the blocking randomized sampling method. In the experiment group, the sedation was provided hourly, using the Richmond sedation Protocol, during the mechanical ventilation period. The level of sedation and pharmacological and nonpharmacological interventions were compared in the two groups using Fisher exact test.

Results:

Totally, 40 patients in the experiment and 39 patients in the control groups were evaluated. No significant difference was found between the two groups in terms of confounding variables (age, sex, level of consciousness, Acute Physiologic and Chronic Health Evaluation (APACHE) II criterion, underlying disease, and cause of hospitalization). The level of sedation in the experiment group was significantly closer to the ideal score of the Richmond Scale compared to the control group (p < 0.001). The experimental group received significantly more non-pharmacological interventions and fewer pharmacological interventions compared to the control group (P < 0.001).

Conclusions:

Using a sedation protocol could provide better sedation levels in patients under mechanical ventilation, and reduce the use of sedative medications, and consequently, the cost of hospitalization. Further research is suggested.

Workforce and Task Sharing of Nurses in the Japanese Intensive Care Unit-Cross-Sectional Postal Survey

This study aimed to estimate the number of nurses who independently care for patients with severe respiratory failure receiving mechanical ventilation (MV) or veno-venous extracorporeal membrane oxygenation (VV-ECMO). Additionally, the study analyzed the actual role of nurses in the treatment of patients with MV and VV-ECMO. We performed a cross-sectional study using postal questionnaire surveys. The study included 725 Japanese intensive care units (ICUs). Data were analyzed using descriptive statistics. Among the 725 ICUs, we obtained 302 responses (41.7%) and analyzed 282 responses. The median number of nurses per bed was 3.25. The median proportion of nurses who independently cared for patients with MV was 60% (IQR: 42.3–77.3). The median proportion of nurses who independently cared for patients with VV-ECMO was 46.9 (35.7–63.3%) in the ICUs that had experience with VV-ECMO use. With regard to task-sharing, 33.8% of ICUs and nurses did not facilitate weaning from MV. Nurses always titrated sedative dosage in 44.5% of ICUs. Nurse staffing might be inadequate in all ICUs, especially for the management of patients with severe respiratory failure. The proportion of competent nurses to care for severe respiratory failure in ICUs should be considered when determining the workforce of nurses.

A gap existed between physicians' perceptions and performance of pain, agitation-sedation and delirium assessments in Chinese intensive care units

BACKGROUND

Pain, agitation-sedation and delirium management are crucial elements in the care of critically ill patients. In the present study, we aimed to present the current practice of pain, agitation-sedation and delirium assessments in Chinese intensive care units (ICUs) and investigate the gap between physicians' perception and actual clinical performance.

METHODS

We sent invitations to the 33 members of the Neuro-Critical Care Committee affiliated with the Chinese Association of Critical Care Physicians. Finally, 24 ICUs (14 general-, 5 neuroscience-, 3 surgical-, and 2 emergency-ICUs) from 20 hospitals participated in this one-day point prevalence study combined with an on-site questionnaire survey. We enrolled adult ICU admitted patients with a length of stay ≥24 h, who were divided into the brain-injured group or non-brain-injured group. The hospital records and nursing records during the 24-h period prior to enrollment were reviewed. Actual evaluations of pain, agitation-sedation and delirium were documented. We invited physicians on-duty during the 24 h prior to the patients' enrollment to complete a survey questionnaire, which contained attitude for importance of pain, agitation-sedation and delirium assessments.

RESULTS

We enrolled 387 patients including 261 (67.4%) brain-injured and 126 (32.6%) non-brain-injured patients. There were 19.9% (95% confidence interval [CI]: 15.9-23.9%) and 25.6% (95% CI: 21.2-29.9%) patients receiving the pain and agitation-sedation scale assessment, respectively. The rates of these two types of assessments were significantly lower in brain-injured patients than non-brain-injured patients (p = 0.003 and < 0.001). Delirium assessment was only performed in three patients (0.8, 95% CI: 0.1-1.7%). In questionnaires collected from 91 physicians, 70.3% (95% CI: 60.8-79.9%) and 82.4% (95% CI: 74.4-90.4%) reported routine use of pain and agitation-sedation scale assessments, respectively. More than half of the physicians (52.7, 95% CI: 42.3-63.2%) reported daily screening for delirium using an assessment scale.

CONCLUSIONS

The actual prevalence of pain, agitation-sedation and delirium assessment, especially delirium screening, was suboptimal in Chinese ICUs. There is a gap between physicians' perceptions and actual clinical practice in pain, agitation-sedation and delirium assessments. Our results will prompt further quality improvement projects to optimize the practice of pain, agitation-sedation and delirium management in China.

TRIAL REGISTRATION

ClinicalTrials.gov, identifier NCT03975751 . Retrospectively registered on 2 June 2019.