Withdrawal Of Ventilation Research Articles

A qualitative exploratory study into medical, nursing and allied health professional experiences of elective withdrawal of non-invasive ventilation in a motor neurone disease cohort.

With absence of a cure, the mainstay of management for patients with motor neurone disease (MND) is holistic supportive care and symptom control. Non-invasive ventilation (NIV) can provide relief from distressing dyspnoea which often accompanies progressive respiratory muscle weakness. Some patients using NIV will become dependent on it, with a small proportion of these patients going on to request withdrawal. Despite being legal in the UK, elective withdrawal of NIV can be emotionally and ethically challenging for the staff involved. To guide the process of symptom-controlled withdrawal, in 2015 the Association for Palliative Medicine (APM) released clinical guidance. The aim of this study is to explore the experiences of the multi-disciplinary team (MDT) involved in elective withdrawal of NIV in an MND cohort following the publication of this guidance. A qualitative, semi-structured interview study of eight NHS qualified staff members (three Doctors, four Nurses, one Allied Health Professional). Clinicians were asked questions relating to their experiences of the withdrawals. After full transcription, data was analysed thematically. Four main themes were identified, offering insight into how the withdrawals affected staff's well-being and summarised via an 'enablers and barriers' model. The setting was important, as was the depth and longevity of the clinician's investment in the patient. Positive influences on staff's well-being arose from the sense of fulfilling the patient's wishes, good teamwork, presence of an experienced clinician and awareness of the APM (2015) Guidance. Conversely, barriers to well-being were expressed through the unpredictability of each scenario, moral and ethical uncertainties, external pressures on time, mismatched expectations, poor communication and the emotional intensity of the act. Elective withdrawal is highly emotive, simultaneously positively and negatively influencing staff well-being. By addressing the potential mitigating factors, the overall impact on staff's mental health and well-being maybe improved and thus, subsequently, patient care.

Predictive value of diaphragm ultrasound for mechanical ventilation outcome in patients with acute exacerbation of chronic obstructive pulmonary disease.

Acute exacerbation of chronic obstructive pulmonary disease (AECOPD) is often combined with respiratory failure, which increases the patient's morbidity and mortality. Diaphragm ultrasound (DUS) has developed rapidly in the field of critical care in recent years. Studies with DUS monitoring diaphragm-related rapid shallow breathing index have demonstrated important results in guiding intensive care unit patients out of the ventilator. Early prediction of the indications for withdrawal of non-invasive ventilator and early evaluation of patients to avoid or reduce disease progression are very important. To explore the predictive value of DUS indexes for non-invasive ventilation outcome in patients with AECOPD. Ninety-four patients with AECOPD who received mechanical ventilation in our hospital from January 2022 to December 2023 were retrospectively analyzed, and they were divided into a successful ventilation group (68 cases) and a failed ventilation group (26 cases) according to the outcome of ventilation. The clinical data of patients with successful and failed noninvasive ventilation were compared, and the independent predictors of noninvasive ventilation outcomes in AECOPD patients were identified by multivariate logistic regression analysis. There were no significant differences in gender, age, body mass index, complications, systolic pressure, heart rate, mean arterial pressure, respiratory rate, oxygen saturation, partial pressure of oxygen, oxygenation index, or time of inspiration between patients with successful and failed mechanical ventilation (P > 0.05). The patients with successful noninvasive ventilation had shorter hospital stays and lower partial pressure of carbon dioxide (PaCO2) than those with failed treatment, while potential of hydrogen (pH), diaphragm thickening fraction (DTF), diaphragm activity, and diaphragm movement time were significantly higher than those with failed treatment (P < 0.05). pH [odds ratio (OR) = 0.005, P < 0.05], PaCO2 (OR = 0.430, P < 0.05), and DTF (OR = 0.570, P < 0.05) were identified to be independent factors influencing the outcome of mechanical ventilation in AECOPD patients. The DUS index DTF can better predict the outcome of non-invasive ventilation in AECOPD patients.

The impact of home mechanical ventilation on the time and manner of death for those with Motor neurone disease (MND): A qualitative study of bereaved family members

Motor neurone disease (MND) is a progressive neurodegenerative disorder which is ultimately terminal. It causes muscle weakness which can lead to the need for assistance in breathing, for some with the disease. This paper draws on qualitative research using semi-structured interviews with 32 people bereaved by the death of a family member with MND who was dependent on home mechanical ventilation, from across the United Kingdom. Interviews explored how the end-of-life of a person who had used non-invasive ventilation to assist their breathing was experienced by participants, who had cared about, and for them. Four themes are used to examine the impact of dependent ventilation technology on the experience of dying on the part of bereaved family members. Themes are: accompanied dying, planned withdrawal of ventilation, blurred time of death, time post-death. The perception and experience of time was a key component across all four themes. Ventilator technology played a critical role in sustaining life, but it could also contribute to a complex dynamic where the realities of death were mediated or obscured. This raises ethical, emotional, and existential considerations, both for the individuals receiving ventilator support and their families, as well as for healthcare professionals involved in end-of-life care.

Withdrawal of Life-Sustaining Mechanical Ventilation for a Patient With Amyotrophic Lateral Sclerosis in Locked-In Syndrome.

Withdrawal of Life-Sustaining Mechanical Ventilation for a Patient With Amyotrophic Lateral Sclerosis in Locked-In Syndrome.

Assessing the efficacy of a graded pulmonary rehabilitation protocol in mechanically ventilated patients following brainstem hemorrhage.

The objective of this study is to assess the impact of an early-graded pulmonary rehabilitation training program on patients undergoing mechanical ventilation due to brainstem hemorrhage. Eighty patients receiving mechanical ventilation due to brainstem hemorrhage at our hospital's neurosurgery department between August 2022 and October 2023 were enrolled as participants. A sampling table was generated based on the order of admission, and 80 random sequences were generated using SPSS software. These sequences were then sorted in ascending order, with the first half designated as the control group and the second half as the intervention group, each comprising 40 cases. The control group received standard nursing care for mechanical ventilation in brainstem hemorrhage cases, while the intervention group underwent early-graded pulmonary rehabilitation training in addition to standard care. This intervention was conducted in collaboration with a multidisciplinary respiratory critical care rehabilitation team. The study compared respiratory function indices, ventilator weaning success rates, ventilator-associated pneumonia incidence, mechanical ventilation duration, and patient discharge duration between the 2 groups. The comparison between patients in the observation group and the control group regarding peak expiratory flow and maximum inspiratory pressure on days 1, 3, 5, and 7 revealed statistically significant differences (P < .05). Additionally, there was a statistically significant interaction between the main effect of intervention and the main effect of time (P < .05). The success rate of ventilator withdrawal was notably higher in the observation group (62.5%) compared to the control group (32.5%), with a statistically significant difference (P < .05). Moreover, the incidence rate of ventilator-associated pneumonia was significantly lower in the observation group (2.5%) compared to the control group (17.5%) (P < .05). Furthermore, both the duration of mechanical ventilation and hospitalization were significantly shorter in the observation group compared to the control group (P < .05). Early-graded pulmonary rehabilitation training demonstrates effectiveness in enhancing respiratory function, augmenting the ventilator withdrawal success rate, and reducing both the duration of mechanical ventilation and hospitalization in mechanically ventilated patients with brainstem hemorrhage. These findings suggest the potential value of promoting the application of this intervention in clinical practice.

Diaphragmatic excursion time index as a predictor of extubation in intensive therapy

Extubation is a critical process in the ICU. Pulmonary USG has different applications, those that predict success in extubation, such as the diaphragmatic excursion time index (DEIT). To determine the diaphragmatic excursion time index is a predictor of the success of weaning off mechanical ventilation in patients in the intensive care unit. Diagnostic performance study in patients in the ICU and in the extubation protocol. Diaphragmatic measurement by USG, evaluating DEIT; cut-off point of 2.42 ± 1.55 cm/s. In the hypothesis test, a JI square was carried out between the two qualitative variables, in order to accept or reject H0, with a statistical significance of p < 0.05 to determine if there is dependence between the dependent and independent variables. Total of 200 patients from the population, with successful extubation in 52.5% and extubation failure in 47.5%. Prognostic values of the DEIT were: S: 77.1% (68.2-84.1%), E: 56.8% (46.8-66.3%). ROC curve for ITED, AUC of 0.665 (0.58-0.74; p = 0.001). In secondary objectives, a correlation was made between ventilatory and demographic variables for successful extubation; with FvT (Rho: 0.680, p = 0.0001). The DEIT for withdrawal of mechanical ventilation has low sensitivity and specificity as a result of successful extubation. The finding that DEIT is not an adequate predictor determining the outcome of successful extubation.

Innovative Strategies for Palliative Care in the Intensive Care Unit.

Palliative care is interdisciplinary care that addresses suffering and improves the quality of care for patients and families when patients are facing a life-threatening illness. Palliative care needs in the intensive care unit include communication regarding diagnosis and prognosis, goals-of-care conversations, multidimensional pain and symptom management, and end-of-life care that may include withdrawal of mechanical ventilation and life support. Registered nurses spend the greatest amount of time with patients and families who are facing death and serious illness, so nurses must be armed with adequate training, knowledge, and necessary tools to address patient and caregiver needs and deliver high-quality, patient-centered palliative care. Innovative approaches to integrating palliative care are important components of care for intensive care nurses. This article reviews 2 evidence-based practice projects, a serious illness support tool and the 3 Wishes Project, to add to the palliative care toolkit for registered nurses and other team members.

Bispectral Index monitoring of palliative sedation for home withdrawal of tracheostomy ventilation: A case report.

Tracheostomy ventilation in motor neurone disease is an uncommon life-sustaining treatment. Best practice is having a plan for ventilation withdrawal, but the literature to guide practice is limited. Case reports have documented standard doses of opioids and benzodiazepines used for sedation in such cases. A 49-year-old man was diagnosed with motor neurone disease in 2016. He commenced tracheostomy ventilation in 2018. In 2022 and 2023, planning was undertaken, at the patient's request, for withdrawal of tracheostomy ventilation at home, when he was no longer able to communicate with technology. Planning included Bispectral Index monitoring prior to cessation of ventilation, ensuring this only occurred when deep sedation was achieved. After ventilation withdrawal in 2023, a retrospective review of medications given and his level of sedation on monitoring was undertaken, with family consent. Ventilation withdrawal was initiated after deep sedation was achieved, 6 h after commencing subcutaneous infusions of morphine, midazolam, clonazepam and phenobarbital. Doses required to achieve acceptable sedation exceeded literature reports. Achieving deep sedation was a longer than expected process. More research using an objective measure of sedation is required, as clinical assessment of sedation in this context is compromised.

#1563 Family feedback survey on quality of dialysis withdrawal and end-of-life care on hemodialysis patients in an ICU – a single-center study from India

Abstract Background and Aims End-of-life care in hemodialysis is emerging, with limited implementation in developing countries. There is a sparsity of data on dialysis withdrawal and the quality of end-of-life care in these regions. Developing countries differ in their cultural, social, and spiritual practice compared to the Western world and family plays a major role in decision-making. No survey has been done on family's perception of dialysis withdrawal and end-of-life care in our settings. So, we studied feedback from families regarding the quality of dialysis withdrawal and end-of-life care provided to maintenance hemodialysis (MHD) patients admitted to our intensive care unit (ICU). Method This study was conducted at Kasturba Medical College, Manipal, MAHE, Manipal, India between January 2020 to October 2022 involving the data from end-stage kidney disease (ESKD) patients on MHD admitted in the ICU, who had withdrawn from dialysis before death and received end-of-life care as per the hospital policy (Blue Maple) from Renal supportive and Palliative care team. The baseline data was collected for all patients and indications for withdrawal of dialysis and ICU treatment and end-of-life care provided were collected. The next of kin were interviewed by telephone by a single interviewer using a modified Quality of Death and Dying questionnaire. The data was analyzed using SPSS 20 Results Among 98 ESKD patients on maintenance hemodialysis who died in our ICU, 23 were referred to Palliative care, counselled, had withdrawal of dialysis at least 48 hours before death and received end-of-life care. Table 1 outlines baseline characteristics. The mean age was 57 ± 12.09 years, with a male predominance (82.6%). Common comorbidities included hypertension (100%), type 2 diabetes (69.5%), and ischemic heart disease (65.2%). The primary cause for ICU admission was infectious disease (47.8%). The majority of reasons for dialysis withdrawal and end-of-life care were worsening hemodynamic status (82.6%) and illness deterioration (69.5%). After consent and establishment of futility, dialysis withdrawal was done for all patients (100%), No CPR for 100%, withdrawal of inotropes in 50%, and withdrawal of ventilator was done in 80% of the patients. A successful telephonic interview/survey was conducted with 21 out of the 23 subjects, with the majority of next of kin being the spouse (47.6%) followed by children (33.3%) and siblings (14.3%). The questionnaire and response are given in Table 2. All expressed a need for palliative care involvement. 82% accepted the decision of dialysis withdrawal and end-of-life care put forth by the doctor's team without difficulty;74% of families were present with the patient in their final hours and were grateful for the same 20% had their spiritual leader to visit during the end-of-life event. None of the family members (100%) interviewed had a guilty feeling and all had a positive rating on the involvement of the palliative care team and the need to ease patients' distress and suffering during their final hours (100%). Unfortunately, none of the patients had prior discussions of advance care planning (ACP) with their doctors regarding end-of-life care before the specific event Conclusion Our study highlights that families agree with the withdrawal of artificial life support measures, such as MHD, CPR, withdrawal of inotropes, and/withdrawal of ventilator in ICU settings when these interventions are considered futile for end-of-life care in ESKD patients. It also emphasizes the need for ACP, and early integration of palliative care for discussions about dialysis withdrawal, and withholding futile interventions at end-of-life care in ESKD patients, especially in resource-constrained settings like ours, for high-quality end-of-life care. This will also lead to better end-of-life care outcomes and improved patient and family satisfaction with care.

Compassionate Ventilator Withdrawal for Residents in a Rural Long-term Care Setting: A Case-Based Review

Compassionate Ventilator Withdrawal for Residents in a Rural Long-term Care Setting: A Case-Based Review

Diagnostic value of bedside lung ultrasound and 12-zone score in the 65 cases of neonatal respiratory distress syndrome and its severity

ObjectiveTo explore the predictive value of bedside lung ultrasound score in the severity of neonatal respiratory distress syndrome (NRDS) and mechanical ventilation and extubation.MethodsThe clinical data of 65 neonates with NRDS and invasive mechanical ventilation diagnosed in the neonatal intensive care unit of our hospital from July 2021 to July 2022 were retrospectively analyzed. 65 neonates were included in the NRDS group, and 40 neonates with other common lung diseases were selected as the other lung disease groups. All neonates underwent lung ultrasound and X-ray examination. The correlation between lung ultrasound scores and arterial blood gas indexes was analyzed by Pearson. The efficacy of successful evacuation of mechanical ventilation was evaluated by lung ultrasound analysis by ROC curve analysis.ResultsThe positive rates of lung consolidation and white lung in NRDS group were higher than the other lung disease groups (P < 0.05). The positive rates of bronchial inflation sign and double lung points were lower than these in the other lung disease groups (P < 0.05). The ultrasound scores of both lungs, left lung, right lung, bilateral lung and double basal lung in the NRDS group were significantly higher than those in the other lung disease groups (P < 0.05). There was a significant positive correlation between lung ultrasound score and X-ray grade (r = 0.841, P < 0.001). The area under the curve (AUC) of lung ultrasound score for the differential diagnosis of NRDS and common lung diseases was 0.907. The AUC of lung ultrasound score in the differential diagnosis of mild and moderate, and moderate and severe NRDS were 0.914 and 0.933, respectively, which had high clinical value. The lung ultrasound score was positively correlated with the level of PaCO2 (r = 0.254, P = 0.041), and negatively correlated with the levels of SpO2 and PaO2 (r = − 0.459, − 0.362, P = 0.001, 0.003). The AUC of successful mechanical ventilation withdrawal predicted by the pulmonary ultrasound score before extubation was 0.954 (95% CI 0.907–1.000). The predictive value of successful extubation was 10 points of the pulmonary ultrasound score, with a sensitivity of 93.33% and a specificity of 88.00%.ConclusionThe bedside lung ultrasound score can intuitively reflect the respiratory status of neonates, which provides clinicians with an important basis for disease evaluation.

Process of Withdrawal of Mechanical Ventilation at End of Life in the ICU: Clinician Perceptions

BackgroundNearly a quarter of all Americans die in the intensive care unit (ICU). Many of their deaths are anticipated and occur after withdrawal of mechanical ventilation (WMV). Yet, there are few data on which to base best practices for interdisciplinary ICU teams to conduct WMV. Research QuestionTo investigate the perceptions of current WMV practices among ICU clinicians, and gain their opinions of processes that might improve the practice of WMV at end of life in the ICU. Study Design and MethodsWe conducted a prospective two-center observational study in Boston, MA of the withdrawal of mechanical ventilation (OBSERVE-WMV) designed to better understand the perspectives of clinicians and experience of patients undergoing WMV. This report focuses on analyses of qualitative data obtained from in-person surveys administered to the ICU clinicians (nurses, respiratory therapists, physicians) caring for these patients. Surveys assessed a broad range of clinician perspectives on planning, and key processes required for WMV. This analysis utilized independent open, inductive coding of responses to open-ended questions. Initial codes were reconciled iteratively, and then organized and interpreted using a thematic analysis approach. We assessed opinions on how WMV could be improved for individual patients and the ICU as a whole. ResultsAmong 456 eligible clinicians, 312 in-person surveys were completed by clinicians caring for 152 patients who underwent WMV. Qualitative analyses identified two main themes characterizing high quality WMV processes: good communication (e.g. mutual understanding of family preferences) between the ICU team and family, and medical management (e.g. planning, availability of ICU team) that minimizes patient distress. Team member support was identified as an essential process component in both themes. InterpretationClinician perceptions of the appropriateness or success of WMV prioritize the quality of team and family communication and patient symptom management. Both are modifiable targets of interventions aimed at optimizing overall WMV.

Public and Clinician Perspectives on Ventilator Withdrawal in Vegetative State Following Severe Acute Brain Injury: A Vignette Survey.

The vegetative state (VS) after severe acute brain injury (SABI) is associated with significant prognostic uncertainty and poor long-term functional outcomes. However, it is generally distinguished from imminent death and is exempt from the Life-Sustaining Treatment (LST) Decisions Act in Korea. Here, we aimed to examine the perspectives of the general population (GP) and clinicians regarding decisions on mechanical ventilator withdrawal in patients in a VS after SABI. A cross-sectional survey was undertaken, utilizing a self-reported online questionnaire based on a case vignette. Nationally selected by quota sampling, the GP comprised 500 individuals aged 20 to 69 years. There were 200 doctors from a tertiary university hospital in the clinician sample. Participants were asked what they thought about mechanical ventilator withdrawal in patients in VS 2 months and 3 years after SABI. Two months after SABI in the case, 79% of the GP and 83.5% of clinicians had positive attitudes toward mechanical ventilator withdrawal. In the GP, attitudes were associated with spirituality, household income, religion, the number of household members. On the other hand, clinicians' attitudes were related to their experience of completing advance directives (AD) and making decisions about LST. In this case, 3 years after SABI, 92% of the GP and 94% of clinicians were more accepting of ventilator withdrawal compared to previous responses, based on the assumption that the patient had written AD. However, it appeared that the proportion of positive responses to ventilator withdrawal decreased when the patients had only verbal expressions (82% of the GP; 75.5% of clinicians) or had not previously expressed an opinion regarding LST (58% of the GP; 39.5% of clinicians). More than three quarters of both the GP and clinicians had positive opinions regarding ventilator withdrawal in patients in a VS after SABI, which was reinforced with time and the presence of AD. Legislative adjustments are needed to ensure that previous wishes for those patients are more respected and reflected in treatment decisions.

Beyond Legal Boundaries: Public and Clinician Perspectives on Treatment Withdrawal in Infants With Poor Neurological Prognosis.

Despite medical advancements in neonatal survival rates, many children have poor neurological outcomes. Because the law in Korea restricts the withdrawal of life-sustaining treatment to only cases of imminent death, treatment discontinuation may not be an option, even in patients with poor neurological prognosis. This study investigated the opinions of the general population and clinicians regarding life-sustaining treatment withdrawal in such cases using hypothetical scenarios. We conducted a cross-sectional study on the general population and clinicians using a web-based questionnaire. The sample of the general population from an online panel comprised 500 individuals aged 20-69 years selected by quota sampling. The clinician sample comprised 200 clinicians from a tertiary university hospital. We created hypothetical vignettes and questionnaire items to assess attitudes regarding mechanical ventilation withdrawal for an infant at risk of poor neurological prognosis due to birth asphyxia at 2 months and 3 years after the incidence. Overall, 73% of the general population and 74% of clinicians had positive attitudes toward mechanical ventilator withdrawal at 2 months after birth asphyxia. The proportion of positive attitudes toward mechanical ventilator withdrawal was increased in the general population (84%, P < 0.001) and clinicians (80.5%, P = 0.02) at 3 years after birth asphyxia. Religion, spirituality, the presence of a person with a disability in the household, and household income were associated with the attitudes of the general population. In the multivariable logistic regression analysis of the general population, respondents living with a person with a disability or having a disability were more likely to find the withdrawal of the ventilator at 2 months and 3 years after birth asphyxia not permissible. Regarding religion, respondents who identified as Christians were more likely to find the ventilator withdrawal at 2 months after birth asphyxia unacceptable. The general population and clinicians shared the perspective that the decision to withdraw life-sustaining treatment in infants with a poor neurological prognosis should be considered before the end of life. A societal discussion about making decisions centered around the best interest of pediatric patients is warranted.

Case Report: Mutation in TNNI3(c. 544G&gt;A): a novel likely pathogenic mechanism of neonatal dilated cardiomyopathy

BackgroundDilated cardiomyopathy (DCM) is a rare disease that causes heart failure due to malfunction of the heart muscle characterized by left ventricular dilation and poor systolic function. Genetic screening leads to advantages in early diagnosis and prognostic assessment of patients with suspected inherited cardiomyopathies. Here, we report a case of neonatal dilated cardiomyopathy due to a mutation of the TNNI3 gene, which has not been published in neonatal dilated cardiomyopathy before.Case presentationThe patient was a 22-day-old newborn boy with poor ability to respond to stimuli, presenting with shortness of breath over 11 days. He presented with irregular fever, tachypnea, difficulty in ventilator withdrawal, and mild edema of both lower limbs, and III/6SM could be heard in the precardiac area. He presented repeated weaning difficulties during hospitalization with intractable low EF heart insufficiency. Doppler echocardiography showed refractory low ejection fraction, cardiac enlargement, cardiac insufficiency, mild pulmonary hypertension, and mitral and tricuspid insufficiency with mild valve regurgitation. Whole-exome sequencing showed a mutation in the TNNI3 gene, c. 544G&amp;gt;A (p.Glu182Lys). Thus, he was diagnosed with neonatal DCM. There was no mutation in the parents, the child died 2 weeks after discharge.ConclusionsTNNI3 mutation is a novel likely pathogenic mechanism of neonatal dilated cardiomyopathy. Therefore, systematic use of diagnostic tools, advanced risk models, and a deeper understanding of the mechanism are required to reduce morbidity and mortality in this disease.

Comments on "Comparison of immediate withdrawal and stepwise reduction in duration of non-invasive ventilation in chronic obstructive pulmonary disease patients presenting with acute hypercapnic respiratory failure"

Dear Editor, The recent study published by Purohit et al. provides new evidence on the safety of immediate withdrawal of non-invasive ventilation (NIV) in chronic obstructive pulmonary disease (COPD) patients admitted with acute hypercapnic respiratory failure (AHRF) after recovery...

Comparison of immediate withdrawal and stepwise reduction in duration of non-invasive ventilation in chronic obstructive pulmonary disease patients presenting with acute hypercapnic respiratory failure.

There is no universally acceptable protocol for the withdrawal of non-invasive ventilation (NIV) in chronic obstructive pulmonary disease (COPD) patients presenting with acute hypercapnic respiratory failure (AHcRF). This study was carried out to evaluate immediate against stepwise reduction in NIV. Sixty COPD patients with AHcRF who were managed with NIV were randomized into two groups - immediate NIV withdrawal (Group A), and stepwise reduction of NIV duration (Group B). The rate of successful NIV withdrawal, time to recurrence of hypercapnic respiratory failure, total duration of NIV use, and hospital length of stay (LOS), were compared among the 2 groups. NIV was successfully withdrawn in 51/60 (85%) patients. NIV was successfully withdrawn in 24/30 (80%) patients in Group A and 27/30 (90%) patients in Group B (p=0.472). The total duration of NIV use was significantly lower in Group A (38.97±17 hours) as compared to Group B (64.3±7.74 hours) (p<0.0001). The hospital LOS was significantly lower in group A (5.8±1.6 days) as compared to Group B (7.7±0.61 days) (p<0.0001). To conclude, immediate withdrawal of the NIV after recovery of respiratory failure among patients with exacerbation of COPD is feasible and does not increase the risk of weaning failure.

Evidence Guiding Withdrawal of Mechanical Ventilation at the End of Life: A Review.

Distress at the end of life in the intensive care unit (ICU) is common. We reviewed the evidence guiding symptom assessment, withdrawal of mechanical ventilation (WMV) process, support for the ICU team, and symptom management among adults, and specifically older adults, at end of life in the ICU. Systematic search of published literature (January 1990-December 2021) pertaining to WMV at end of life among adults in the ICU setting using PubMed, Embase, and Web of Science. Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines were followed. Adults (age 18 and over) undergoing WMV in the ICU. Study quality was assessed using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach. Out of 574 articles screened, 130 underwent full text review, and 74 were reviewed and assessed for quality. The highest quality studies pertained to use of validated symptom scales during WMV. Studies of the WMV process itself were generally lower quality. Support for the ICU team best occurs via structured communication and social supports. Dyspnea is the most distressing symptom, and while high quality evidence supports the use of opiates, there is limited evidence to guide implementation of their use for specific patients. High quality studies support some practices in palliative WMV, while gaps in evidence remain for the WMV process, supporting the ICU team, and medical management of distress. Future studies should rigorously compare WMV processes and symptom management to reduce distress at end of life.

Comparison of clinical outcomes in critical patients undergoing different mechanical ventilation modes: a systematic review and network meta-analysis.

To evaluate the effects of different mechanical ventilation modes on critical patients. PubMed, Embase, Web of science, and Cochrane Library databases were searched from their inception to November 15, 2022 for randomized controlled trials on the application of different mechanical ventilation modes in critical patients. Two researchers independently screened the literature, extracted data, and assessed the risk of bias in the included studies. R4.2.1 was used for this network meta-analysis. Twenty-eight RCTs involving 3,189 patients were included. The interventions in these RCTs included NAVA (neurally adjusted ventilatory assist), PAV (proportional assist ventilation), ASV (adaptive support ventilation), Smartcare/PS (Smartcare/pressure support), PSV (pressure support ventilation), PSV_ATC (pressure support ventilation_automatic tube compensation), and SIMV (synchronized intermittent mandatory ventilation). The network meta-analysis showed that, compared with the PSV group, there was no significant difference in duration of mechanical ventilation, duration of ICU stay, and hospital stay between NAVA, SIMV, AVS, PAV, Smartcare/PS, and PSV_ATC groups. Compared with PSV, PAV improved the success rate of withdrawal of ventilator [OR = 3.07, 95%CI (1.21, 8.52)]. Compared with PSV and PAV, NAVA reduced mortality in the ICU [OR = 0.63, 95%CI (0.43, 0.93); OR = 0.45, 95%CI (0.21, 0.97)]. NAVA can reduce mortality in ICU, and PAV may increase the risk of withdrawal of the ventilator. There was no significant difference between PSV and other mechanical ventilation modes (NAVA, SIMV, AVS, PAV, Smartcare/PS, and PSV_ATC) in the duration of mechanical ventilation, duration of ICU stay, or hospital stay. Due to the limitations, more high-quality studies are needed to verify these findings.

Effect of a Japanese Version of the Burns Wean Assessment Program e-Learning Materials on Ventilator Withdrawal for Intensive Care Unit Nurses.

No assessment tool for predicting ventilator withdrawal success is currently available in Japan. Thus, an accessible and valid assessment tool to address this issue is needed. The Burns Wean Assessment Program (BWAP) has been validated as a reliable predictor of ventilator withdrawal outcomes. However, nurses must be familiar with this tool to ensure its efficient utilization in clinical settings. This study was designed to examine the effect of a 26-item Japanese version of BWAP (J-BWAP) e-learning materials on ventilator withdrawal in a sample of intensive care unit nurses in Japan. The BWAP was translated into Japanese, checked, and verified as the J-BWAP. Nonrandomized intensive care unit nurses from six hospitals were assigned to three groups, including Intervention Group 1 (e-learning in one session), Intervention Group 2 (e-learning over three sessions during 1 week), and the control group. The participants underwent pretests and posttests using web-based, simulated patients. The primary outcome measure was the difference in online pretest and posttest total scores among the two intervention groups and the control group. The feasibility of the J-BWAP and its e-learning materials was evaluated using four frameworks: acceptability, demand, implementation, and adaptation. Of the 48 participants in the study, 32 completed the posttest and were included in the analysis (dropout rate: 33.3%). The difference between pretest and posttest scores was significantly higher in the intervention groups than the control group (2 vs. -1, p = .0191) and in Intervention Group 2 than the control group (2.0 vs. -0.5, p = .049). The feasibility frameworks for the J-BWAP and its e-learning materials were mostly positive. The development of the J-BWAP and training nurses using e-learning were shown to be feasible in this study. The J-BWAP contents are appropriate for predicting the outcome of mechanical ventilation withdrawal. The J-BWAP has the potential to become a common tool among Japanese medical professionals after the contents are further simplified for daily application in clinical practice. Subsequent studies should verify the reliability and validity of this tool and test the real-world utility of the J-BWAP using randomized controlled trials in Japanese clinical settings.