Palliative and end-of-life care practices for critically ill patients and their families in a peri-intensive care setting: A protocol for an umbrella review.

OBJECTIVES: This umbrella review will summarize palliative and end-of-life care practices in peri-intensive care settings by reviewing systematic reviews in intensive care unit (ICU) settings. Evidence suggests that integrating palliative care into ICU management, initiating conversations about care goals, and providing psychological and emotional support can significantly enhance patient and family outcomes. METHODS: The Joanna Briggs Institute (JBI) methodology for umbrella reviews will be followed. The search will be carried out from inception until 30 September 2023 in the following databases: Cochrane Library, SCOPUS, Web of Science, CINAHL Complete, Medline, EMBASE, and PsycINFO. Two reviewers will independently conduct screening, data extraction, and quality assessment, and to resolve conflicts, adding a third reviewer will facilitate the consensus-building process. The quality assessment will be carried out using the JBI Critical Appraisal Checklist. The review findings will be reported per the guidelines outlined in the Preferred Reporting Items for Overviews of Reviews statement. RESULTS: This umbrella review seeks to inform future research and practice in critical care medicine, helping to ensure that end-of-life care interventions are optimized to meet the needs of critically ill patients and their families.

Semiotics of ICU Physicians' Views on End-of-life Care and Quality of Dying in a Critical Care Setting: A Qualitative Study.

Background and aim: While intensive care unit (ICU) mortality rates in India are higher when compared to countries with more resources, fewer patients with clinically futile conditions are subjected to limitation of life-sustaining treatments or given access to palliative care. Although a few surveys and audits have been conducted exploring this phenomenon, the qualitative perspectives of ICU physicians regarding end-of-life care (EOLC) and the quality of dying are yet to be explored. Methods: There are 22 eligible consultant-level ICU physicians working in multidisciplinary ICUs were purposively recruited and interviewed. The study data was analyzed using reflexive thematic analysis (RTA) with a critical realist perspective, and the study findings were interpreted using the lens of the semiotic theory that facilitated the development of themes. Results: About four themes were generated. Intensive care unit physicians perceived the quality of dying as respecting patients' and families' choices, fulfilling their needs, providing continued care beyond death, and ensuring family satisfaction. To achieve this, the EOLC process must encompass timely decision-making, communication, treatment guidelines, visitation rights, and trust-building. The contextual challenges were legal concerns, decision-making complexities, cost-related issues, and managing expectations. To improve care, ICU physicians suggested amplifying patient and family voices, building therapeutic relationships, mitigating conflicts, enhancing palliative care services, and training ICU providers in EOLC. Conclusion: Effective management of critically ill patients with life-limiting illnesses in ICUs requires a holistic approach that considers the complex interplay between the EOLC process, its desired outcome, the quality of dying, care context, and the process of meaning-making by ICU physicians. How to cite this article: Iyer S, Sonawane RN, Shah J, Salins N. Semiotics of ICU Physicians' Views on End-of-life Care and Quality of Dying in a Critical Care Setting: A Qualitative Study. Indian J Crit Care Med 2024;28(5):424-435.

Author Response.

How to cite this article: Panda BK, Suryawanshi VR, Attarde G, Borkar N, Iyer S, Shah J. Author Response. Indian J Crit Care Med 2024;28(4):408-409.

A Prospective Observational Study Comparing Oxygen Saturation/Fraction of Inspired Oxygen Ratio with Partial Pressure of Oxygen in Arterial Blood/Fraction of Inspired Oxygen Ratio among Critically Ill Patients Requiring Different Modes of Oxygen Supplementation in Intensive Care Unit.

Background: Intensive care unit (ICU) patients face a significant rise in mortality rates due to acute hypoxemic respiratory failure (AHRF). The diagnosis of AHRF is based on the PF ratio, but it has limitations in resource-constrained settings. Instead, the Kigali modification suggests using the oxygen saturation/fraction of inspired oxygen (SF) ratio. This study aims to correlate SF ratio and arterial oxygen pressure (PF) ratio in critically ill adults with hypoxemic respiratory failure, who required O2 therapy through different modes of oxygen supplementation. Materials and methods: In an ICU, a prospective observational study included 125 adult AHRF patients receiving oxygen therapy, with data collected on FiO2, PaO2, and SpO2. The SF ratio and PF ratio were calculated, and their correlation was assessed using statistical analysis. The receiver operator characteristics (ROC) curve analysis was conducted to assess the diagnostic precision of the SF ratio in identifying AHRF. Results: Data from a total of 250 samples were collected. The study showed a positive correlation (r = 0.622) between the SF ratio and the PF ratio. The SF threshold values of 252 and 321 were established for PF values of 200 and 300, respectively, featuring a sensitivity of 69% and specificity of 95%. Furthermore, it is worth noting that the PF ratio and SF ratio are interchangeable, regardless of the type of oxygen therapy, as the median values of both the PF ratio and SF ratio displayed statistical significance (p < 0.01) in both acidosis and alkalosis conditions. Conclusion: For patients with AHRF, the noninvasive SF ratio can effectively serve as a substitute for the invasive PF ratio across all oxygen supplementation modes. How to cite this article: Alur TR, Iyer SS, Shah JN, Kulkarni S, Jedge P, Patil V. A Prospective Observational Study Comparing Oxygen Saturation/Fraction of Inspired Oxygen Ratio with Partial Pressure of Oxygen in Arterial Blood/Fraction of Inspired Oxygen Ratio among Critically Ill Patients Requiring Different Modes of Oxygen Supplementation in Intensive Care Unit. Indian J Crit Care Med 2024; 28(3):251-255.

Correlation of Quality Metrics of Acute Stroke Care with Clinical Outcomes in an Indian Tertiary-care University Hospital: A Prospective Evidence-based Study.

Aim: To characterize the impact of adherence to quality metrics of stroke care on the clinical outcomes of ischemic stroke (IS) and intracerebral hemorrhage (ICH) admissions. Methods: Consecutive patients with acute stroke were prospectively followed up for their demographic and clinical characteristics, acute stroke management, and associated clinical outcomes at discharge. Stroke quality metrics [adopted from the American Heart Association (AHA)/American Stroke Association's Get with The Guidelines (GWTG)] with a specific interest in an association between acute reperfusion therapies and functional recovery in stroke patients are analyzed and presented. A composite measure of care was considered "0 (non-adherence) to 1 (adherence)." An all-or-none measure of care was calculated to check whether eligible patients received all the quality-of-care interventions. Multivariate Cox regression models were used to study an association between optimal adherence and clinical outcomes. Results: During the study period, of the total 256 stroke admissions, 200 (78.1%) patients had IS, and the remaining 56 (21.9%) patients had ICH. The median [interquartile range (IQR)] age of total stroke admissions was 57 (36-78) years. Male preponderance was observed (IS: 80% and ICH: 67.9%). The conformity of performance metrics in IS patients was from 69.1% [95% confidence interval (CI), 68.5-69.6] for the use of deep vein thrombosis prophylaxis (DVTp) to 97.8% (95% CI, 96.2-98.6) for the use of statins. In ICH patients, it ranged from 61.7% (95% CI, 60.4-62.5) for the use of DVTp to 89.9% (95% CI, 88.6-89.7) for stroke rehabilitation. The unadjusted odds ratio (OR) of mortality (in-hospital plus the 28th-day postdischarge) was higher in ICH patients vs IS patients (4.42, p = 0.005). Optimal adherence with intravenous recombinant tissue plasminogen activator (IV-rtPA) therapy [hazards ratio (HR) = 0.23], in-hospital acute measures [IS (HR = 0.41) and ICH (HR = 0.63)], and discharge measures [IS (HR = 0.35) and ICH (HR = 0.45)] were associated with reduced hazards of the 28th-day mortality in both cohorts. Compared to ICH, IS patients had significantly improved neurofunctional recovery [modified Rankin score (mRS) ≤ 2, p < 0.01]. Conclusion: Adherence to quality metrics and performance measures was associated with low mortality and favorable clinical outcomes. Also, DVTp as an in-hospital (acute) measure of stroke care needs attention in both cerebrovascular events. How to cite this article: Panda BK, Suryawanshi VR, Attarde G, Borkar N, Iyer S, Shah J. Correlation of Quality Metrics of Acute Stroke Care with Clinical Outcomes in an Indian Tertiary-care University Hospital: A Prospective Evidence-based Study. Indian J Crit Care Med 2023;27(11):806-815.

Endotracheal Intubation with King Vision Video Laryngoscope vs Macintosh Direct Laryngoscope in ICU: A Comparative Evaluation of Performance and Outcomes.

Background: Endotracheal intubation to protect airway patency in critically ill patients with the use of videolaryngoscopes has been emerging and their expertise to handle is crucial. Our study focuses on the performance and outcomes of King Vision video laryngoscope (KVVL) in intensive care unit (ICU) compared to Macintosh direct laryngoscope (DL). Materials and methods: This comparative study was conducted by randomizing 143 critically ill patients in ICU into two groups: KVVL and Macintosh DL (n = 73; n = 70). The intubation difficulty was assessed by Mallampati score III or IV, apnea syndrome (obstructive), cervical spine limitation, opening mouth <3 cm, coma, hypoxia, anesthesiologist nontrained (MACOCHA) score. The primary endpoint was the glottic view measured by Cormack-Lehane (CL) grading. The secondary endpoints were a first-pass success, the time required for intubation, airway morbidities, and manipulations required. Results: The KVVL group showed the primary endpoint of significantly improved glottic visualization measured in terms of CL grading compared with the Macintosh DL group (p < 0.001). In the KVVL group, the first pass success rate was higher (95.7%) compared to the Macintosh DL group (81.4%) (p < 0.05). The time required for intubation in the KVVL group (28.77 ± 2.63 seconds) was significantly less compared with Macintosh DL (38.84 ± 2.72 seconds) group (p < 0.001). The airway morbidities observed were similar in both groups (p = 0.5) and the manipulation required for endotracheal intubation was significantly less (p < 0.05) in our KVVL group (16 cases; 23%) compared to the Macintosh DL group (8 cases; 10%). Conclusion: We found that the performance and outcomes of KVVL in intubating critically ill ICU patients were promising when handled by experienced operators who are experts in anesthesiology and airway management. How to cite this article: Dharanindra M, Jedge PP, Patil VC, Kulkarni SS, Shah J, Iyer S, et al. Endotracheal Intubation with King Vision Video Laryngoscope vs Macintosh Direct Laryngoscope in ICU: A Comparative Evaluation of Performance and Outcomes. Indian J Crit Care Med 2023;27(2):101-106.

Mindfulness-based Interventions: Can They Improve Self-care and Psychological Well-being?

How to cite this article: Iyer S. Mindfulness-based Interventions: Can They Improve Self-care and Psychological Well-being? Indian J Crit Care Med 2022;26(4):407-408.

Stress Level and Its Determinants among Staff (Doctors and Nurses) Working in the Critical Care Unit.

Background: Very few extensive studies regarding job stressors among doctors and nurses have been conducted in India. It is important to explore the workplace to understand various stressors that adversely affect the well-being of an individual and also affect health care and needs of patients and relatives. Considering this, the present study was planned to determine stress among doctors and nurses from the critical care unit (CCU) and to find the association of stress with selected variables. Materials and methods: This observational cross-sectional study was conducted among all staff (doctors and nurses) from the CCU. Data were collected with a pilot-tested, predesigned, validated questionnaire using the Google survey tool consisting of sociodemographic details and the ICMR work stress questionnaire. Analysis of data was done with SPSS version 25. Results: Of 105 participants, 57 (54.3%) were doctors and 48 (45.7%) were nurses. A total of 48.6% (51) of participants scored 32 of 64, that is, managed stress very well, and 51.4% of participants (54) scored 65 of 95, that is, having a reasonably safe level of stress, but certain areas need improvement. Conclusion: Stress was significantly more among females and those who have sleep problems. No statistically significant difference was found between the level of stress and age, relationship with seniors, exercise, and comorbidities. How to cite this article: Patil VC, Patil SV, Shah JN, Iyer SS. Stress Level and Its Determinants among Staff (Doctors and Nurses) Working in the Critical Care Unit. Indian J Crit Care Med 2021;25(8):886-889.

Direct Medical Cost Analysis of Indian COVID-19 Patients Requiring Critical Care Admission.

INTRODUCTION: Intensive care unit (ICU) admission is required for approximately 25% of patients affected with coronavirus disease-19 (COVID-19) and imposes a high economic burden on patients in resource-limited settings. METHOD: We conducted a retrospective direct medical care cost analysis of COVID-19 patients requiring ICU admission after obtaining the Institutional Ethics Committee approval. Data were obtained from the records of patients admitted to the COVID-19 ICU of a tertiary care trust teaching hospital from June 2020 to December 2020. Direct costs were analyzed and correlated with various demographic variables and clinical outcomes. RESULTS: A total of 176 patients were included (males-76%). The median direct medical cost for a median stay of 13 days was INR 202248.5 ($ 2742.91). Hospital drugs and disposables accounted for 20% of the total cost followed by bed charges (19%), equipment charges (17%), biosafety protective gear (15.5%), pathological and radiological tests (15%), clinical management (7.6%), and biomedical waste management (1.6%). Government schemes accounted for 79% of medical claims followed by directly paying patients (12.5%) and private insurance (8.5%). The cost was significantly higher in patients with diabetes mellitus and sepsis and in those requiring mechanical ventilation (MV) (p <0.05). Shorter lead time to hospital admission and lesser length of hospital stay were associated with significant lower direct cost. CONCLUSION: Direct medical care cost is substantial for COVID-19 patients requiring ICU admission. This cost is significantly associated with increased ICU and hospital stay, longer lead time to admission, diabetes mellitus, sepsis, and those who need high-flow nasal cannula (HFNC), noninvasive ventilation (NIV), and MV. HOW TO CITE THIS ARTICLE: Reddy KN, Shah J, Iyer S, Chowdhury M, Yerrapalem N, Pasalkar N, et al. Direct Medical Cost Analysis of Indian COVID-19 Patients Requiring Critical Care Admission. Indian J Crit Care Med 2021;25(10):1120-1125.

Dietary Fiber: Is It Hype or Useful?

How to cite this article: Iyer S. Dietary Fiber: Is It Hype or Useful? Indian J Crit Care Med 2020;24(11):1014.

Identification and Assessment of Potential Drug-Drug Interactions in Intensive Care Unit Patients.

CONTEXT: Intensive care unit (ICU) patients suffer from various comorbidities and usually receive complex pharmacotherapy which increases the risk of drug-drug interactions (DDIs). AIM: To identify and assess potential DDIs (pDDIs) in ICU patients. SETTINGS AND DESIGN: A prospective observational study conducted in ICU of a tertiary care hospital for a period of 6 months. MATERIALS AND METHODS: Patient information was noted in the data collection form and pDDIs were assessed using Micromedex®database. STATISTICAL ANALYSIS USED: Chi-square test was used to find correlation of pDDIs with patient parameters. p value was calculated keeping the significance level 0.05. RESULTS: Total 400 subjects were included; having an average age of 55.99 ± 15.62 years with a higher percentage of males (61.75%). About 305 (76.25%) patients were found with pDDIs, showing an average of 2.93 pDDIs/patient. The findings of this study were as follows: Total interactions = 1171, contraindicated = 6 (1%), major = 715 (61%), moderate = 428 (36%), and minor = 22 (2%) pDDIs. Further, majority of pDDIs had onset of action "not specified" documentation "fair" and probable mechanism "pharmacodynamic" in nature. Significant association of occurrence of pDDIs was found with number of drugs prescribed to patients in ICU. CONCLUSION: This study demonstrated a high prevalence of pDDI in ICU due to the complexity of pharmacotherapy which showed major pDDIs as the most evident (61%) while contraindicated were 1%. Further studies are needed to better explore this area which may help in realizing the goal of good clinical practice and may offer a methodology to further increase drug safety. KEY MESSAGES: "Monitoring and assessment of DDIs is needed for better patient care". HOW TO CITE THIS ARTICLE: Wagh BR, Godbole DD, et al. Identification and Assessment of Potential Drug-Drug Interactions in Intensive Care Unit Patients. Indian J Crit Care Med 2019;23(4):170-174.

Definition of Terms Used in Limitation of Treatment and Providing Palliative Care at the End of Life: The Indian Council of Medical Research Commission Report.

BACKGROUND: Indian hospitals, in general, lack policies on the limitation of inappropriate life-sustaining interventions at the end of life. To facilitate discussion, preparation of guidelines and framing of laws, terminologies relating to the treatment limitation, and providing palliative care at the end-of-life care (EOLC) need to be defined and brought up to date. METHODOLOGY: This consensus document on terminologies and definitions of terminologies was prepared under the aegis of the Indian Council of Medical Research. The consensus statement was created using Nominal Group and Delphi Method. RESULTS: Twenty-five definitions related to the limitations of treatment and providing palliative care at the end of life were created by reviewing existing international documents and suitably modifying it to the Indian sociocultural context by achieving national consensus. Twenty-five terminologies defined within the scope of this document are (1) terminal illness, (2) actively dying, (3) life-sustaining treatment, (4) potentially inappropriate treatment, (5) cardiopulmonary resuscitation (CPR), (6) do not attempt CPR, (7) withholding life-sustaining treatment, (8) withdrawing life-sustaining treatment, (9) euthanasia (10) active shortening of the dying process, (11) physician-assisted suicide, (12) palliative care, (13) EOLC, (14) palliative sedation, (15) double effect, (16) death, (17) best interests, (18) health-care decision-making capacity, (19) shared decision-making, (20) advance directives, (21) surrogates, (22) autonomy, (23) beneficence, (24) nonmaleficence, and (25) justice.

Triple trouble--macrophage activation syndrome in a case of severe leptospirosis and scrub typhus co-infection.

Macrophage activation syndrome is a potentially life threatening phenomenon characterised by aggressive proliferation of macrophages and T lymphocytes leading to haemophagocytosis of other blood cells and multi organ failure. Here we present a very unusual combination of leptospirosis and scrub typhus infection leading to macrophage activation syndrome. Scrub typhus associated with macrophage activation syndrome has rarely been reported in India. A 40 year old female presented with high grade fever, seizures, bodyache, arthralgia and severe breathlessness. Investigations revealed persistent thrombocytopenia, impaired liver function tests, renal dysfunction, leptospiral IgM ELISA positive and a positive Weil Felix test. There was evidence of haemophagocytosis in bone marrow. Macrophage activation syndrome if left untreated has been associated with rapidly fatal outcome and early treatment can help us save that one precious thing..called life..!

End-of-life care policy: An integrated care plan for the dying: A Joint Position Statement of the Indian Society of Critical Care Medicine (ISCCM) and the Indian Association of Palliative Care (IAPC).

PURPOSE: The purpose was to develop an end-of-life care (EOLC) policy for patients who are dying with an advanced life limiting illness and to develop practical procedural guidelines for limiting inappropriate therapeutic medical interventions and improve the quality of care of the dying within an ethical framework and through a professional and family/patient consensus process. EVIDENCE: The Indian Society of Critical Care Medicine (ISCCM) published its first guidelines on EOLC in 2005 [1] which was later revised in 2012.[2] Since these publications, there has been an exponential increase in empirical information and discussion on the subject. The literature reviewed observational studies, surveys, randomized controlled studies, as well as guidelines and recommendations, for education and quality improvement published across the world. The search terms were: EOLC; do not resuscitate directives; withdrawal and withholding; intensive care; terminal care; medical futility; ethical issues; palliative care; EOLC in India; cultural variations. Indian Association of Palliative Care (IAPC) also recently published its consensus position statement on EOLC policy for the dying.[3]. METHOD: An expert committee of members of the ISCCM and IAPC was formed to make a joint EOLC policy for the dying patients. Proposals from the chair were discussed, debated, and recommendations were formulated through a consensus process. The members extensively reviewed national and international established ethical principles and current procedural practices. This joint EOLC policy has incorporated the sociocultural, ethical, and legal perspectives, while taking into account the needs and situation unique to India.

Comparison of admission GCS score to admission GCS-P and FOUR scores for prediction of outcomes among patients with traumatic brain injury in the intensive care unit in India.

BACKGROUND: This study aimed to determine the predictive power of the Full Outline of Unresponsiveness (FOUR) score and the Glasgow Coma Scale Pupil (GCS-P) score in determining outcomes for traumatic brain injury (TBI) patients. The Glasgow Outcome Scale (GOS) was used to evaluate patients at 1 month and 6 months after the injury. METHODS: We conducted a 15-month prospective observational study. It included 50 TBI patients admitted to the ICU who met our inclusion criteria. We used Pearson's correlation coefficient to relate coma scales and outcome measures. The predictive value of these scales was determined using the receiver operating characteristic (ROC) curve, calculating the area under the curve with a 99% confidence interval. All hypotheses were two-tailed, and significance was defined as P<0.01. RESULTS: In the present study, the GCS-P and FOUR scores among all patients on admission as well as in the subset of patients who were mechanically ventilated were statistically significant and strongly correlated with patient outcomes. The correlation coefficient of the GCS score compared to GCS-P and FOUR scores was higher and statistically significant. The areas under the ROC curve for the GCS, GCS-P, and FOUR scores and the number of computed tomography abnormalities were 0.912, 0.905, 0.937, and 0.324, respectively. CONCLUSIONS: The GCS, GCS-P, and FOUR scores are all excellent predictors with a strong positive linear correlation with final outcome prediction. In particular, the GCS score has the best correlation with final outcome.

Efficacy and Safety of a Phytopharmaceutical Drug Derived from Cocculus hirsutus in Adults with Moderate COVID-19: a Phase 2, Open-label, Multicenter, Randomized Controlled Trial.

INTRODUCTION: There is an urgent need for an effective, oral therapy for COVID-19. Purified aqueous extract of Cocculus hirsutus (AQCH) has shown robust antiviral activity in in vitro studies. We aimed to evaluate the efficacy and safety of AQCH plus standard of care in hospitalized patients with moderate COVID-19. METHODS: In an open-label, multicenter, randomized controlled trial conducted in India, eligible patients (aged 18-75 years) were randomized (1:1) to receive AQCH 400 mg orally three times a day plus standard of care (AQCH group) or standard of care alone (control group) for 10 days. Primary endpoint was the proportion of patients showing clinical improvement by day 14. Time to clinical improvement, time to viral clearance, and duration of hospitalization were secondary endpoints. RESULTS: A total of 210 patients were randomized. By day 14 most patients in both groups showed clinical improvement [difference - 0.01 (95% CI - 0.07 to 0.05); p = 1.0]. Median time to clinical improvement was 8 days (IQR 8-11) in the AQCH group versus 11 days (IQR 8-11) in the control group [HR 1.27 (95% CI 0.95-1.71); p = 0.032]. Time to viral clearance and duration of hospitalization were also significantly shorter in the AQCH group (p = 0.0002 and p = 0.016, respectively). AQCH was well tolerated, with no safety concerns identified. CONCLUSIONS: AQCH significantly reduced time to clinical improvement, time to viral clearance, and duration of hospitalization. In a pandemic, this has significant potential to decrease healthcare resource utilization and increase hospital bed availability. Further investigation of the therapeutic potential of AQCH in patients with COVID-19 is warranted. TRIAL REGISTRATION: Clinical Trials Registry - India (CTRI/2020/05/025397).

Epidemiological Characteristics, Ventilator Management, and Clinical Outcome in Patients Receiving Invasive Ventilation in Intensive Care Units from 10 Asian Middle-Income Countries (PRoVENT-iMiC): An International, Multicenter, Prospective Study.

Epidemiology, ventilator management, and outcome in patients receiving invasive ventilation in intensive care units (ICUs) in middle-income countries are largely unknown. PRactice of VENTilation in Middle-income Countries is an international multicenter 4-week observational study of invasively ventilated adult patients in 54 ICUs from 10 Asian countries conducted in 2017/18. Study outcomes included major ventilator settings (including tidal volume [V T ] and positive end-expiratory pressure [PEEP]); the proportion of patients at risk for acute respiratory distress syndrome (ARDS), according to the lung injury prediction score (LIPS), or with ARDS; the incidence of pulmonary complications; and ICU mortality. In 1,315 patients included, median V T was similar in patients with LIPS < 4 and patients with LIPS ≥ 4, but lower in patients with ARDS (7.90 [6.8-8.9], 8.0 [6.8-9.2], and 7.0 [5.8-8.4] mL/kg Predicted body weight; P = 0.0001). Median PEEP was similar in patients with LIPS < 4 and LIPS ≥ 4, but higher in patients with ARDS (five [5-7], five [5-8], and 10 [5-12] cmH2O; P < 0.0001). The proportions of patients with LIPS ≥ 4 or with ARDS were 68% (95% CI: 66-71) and 7% (95% CI: 6-8), respectively. Pulmonary complications increased stepwise from patients with LIPS < 4 to patients with LIPS ≥ 4 and patients with ARDS (19%, 21%, and 38% respectively; P = 0.0002), with a similar trend in ICU mortality (17%, 34%, and 45% respectively; P < 0.0001). The capacity of the LIPS to predict development of ARDS was poor (receiver operating characteristic [ROC] area under the curve [AUC] of 0.62, 95% CI: 0.54-0.70). In Asian middle-income countries, where two-thirds of ventilated patients are at risk for ARDS according to the LIPS and pulmonary complications are frequent, setting of V T is globally in line with current recommendations.

PRactice of VENTilation in Middle-Income Countries (PRoVENT-iMIC): rationale and protocol for a prospective international multicentre observational study in intensive care units in Asia.

INTRODUCTION: Current evidence on epidemiology and outcomes of invasively mechanically ventilated intensive care unit (ICU) patients is predominantly gathered in resource-rich settings. Patient casemix and patterns of critical illnesses, and probably also ventilation practices are likely to be different in resource-limited settings. We aim to investigate the epidemiological characteristics, ventilation practices and clinical outcomes of patients receiving mechanical ventilation in ICUs in Asia. METHODS AND ANALYSIS: PRoVENT-iMIC (study of PRactice of VENTilation in Middle-Income Countries) is an international multicentre observational study to be undertaken in approximately 60 ICUs in 11 Asian countries. Consecutive patients aged 18 years or older who are receiving invasive ventilation in participating ICUs during a predefined 28-day period are to be enrolled, with a daily follow-up of 7 days. The primary outcome is ventilatory management (including tidal volume expressed as mL/kg predicted body weight and positive end-expiratory pressure expressed as cm H2O) during the first 3 days of mechanical ventilation-compared between patients at no risk for acute respiratory distress syndrome (ARDS), patients at risk for ARDS and in patients with ARDS (in case the diagnosis of ARDS can be made on admission). Secondary outcomes include occurrence of pulmonary complications and all-cause ICU mortality. ETHICS AND DISSEMINATION: PRoVENT-iMIC will be the first international study that prospectively assesses ventilation practices, outcomes and epidemiology of invasively ventilated patients in ICUs in Asia. The results of this large study, to be disseminated through conference presentations and publications in international peer-reviewed journals, are of ultimate importance when designing trials of invasive ventilation in resource-limited ICUs. Access to source data will be made available through national or international anonymised datasets on request and after agreement of the PRoVENT-iMIC steering committee. TRIAL REGISTRATION NUMBER: NCT03188770; Pre-results.