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Chung Y, Garden FL, Marks GB, Vedam H. Causes of hypercapnic respiratory failure and associated in-hospital mortality. Respirology 2023; 28:176-182. [PMID: 36210347 PMCID: PMC10092076 DOI: 10.1111/resp.14388] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 09/19/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND AND OBJECTIVE Hypercapnic respiratory failure (HRF) can occur due to severe respiratory disease but also because of multiple coexistent causes. There are few data on the prevalence of antecedent causes for HRF and the effect of these causes on prognosis, especially where study inclusion has not been biased with respect to primary diagnosis, interventions received or clinical outcome. We sought to determine the prevalence of pre-specified conditions among patients with HRF and to determine the effect of these causes on in-hospital mortality. METHODS Cross-sectional study of patients with HRF from 2013 to 2017. Inclusion criteria were PaCO2 >45 mm Hg and pH ≤7.45. Causes of interest were identified using diagnosis codes from hospital records. We used directed acyclic graphs to inform logistic regression models for the outcome of in-hospital death. RESULTS We identified 873 persons with HRF in the study period. Mean (SD) age was 69 years and 50.4% were males. Acidosis (pH <7.35) was present in 488 (55%) cases. Most (83%) had one or more of the following: obstructive lung disease, lower respiratory tract infection, congestive cardiac failure, sleep disordered breathing, neuromuscular disease, opioid or benzodiazepine use. In-hospital mortality was 12.8%. Obstructive lung disease and cardiac failure were associated with a lower risk of death, whereas respiratory tract infection and neuromuscular disease were associated with increased risk of death. CONCLUSION HRF is associated with a range of potentially causative conditions, which significantly impact hospital survival. Systematic evaluation of patients with HRF may increase detection of treatable comorbidities.
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Affiliation(s)
- Yewon Chung
- South Western Sydney Clinical School, UNSW Medicine, Sydney, New South Wales, Australia.,Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, Liverpool Hospital, Liverpool, New South Wales, Australia
| | - Frances L Garden
- South Western Sydney Clinical School, UNSW Medicine, Sydney, New South Wales, Australia.,Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia
| | - Guy B Marks
- South Western Sydney Clinical School, UNSW Medicine, Sydney, New South Wales, Australia.,Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, Liverpool Hospital, Liverpool, New South Wales, Australia
| | - Hima Vedam
- South Western Sydney Clinical School, UNSW Medicine, Sydney, New South Wales, Australia.,Ingham Institute for Applied Medical Research, Liverpool, New South Wales, Australia.,Department of Respiratory and Sleep Medicine, Liverpool Hospital, Liverpool, New South Wales, Australia
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Abubacker AP, Ndakotsu A, Chawla HV, Iqbal A, Grewal A, Myneni R, Vivekanandan G, Khan S. Non-invasive Positive Pressure Ventilation for Acute Cardiogenic Pulmonary Edema and Chronic Obstructive Pulmonary Disease in Prehospital and Emergency Settings. Cureus 2021; 13:e15624. [PMID: 34277241 PMCID: PMC8277092 DOI: 10.7759/cureus.15624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/13/2021] [Indexed: 11/29/2022] Open
Abstract
Non-invasive ventilation is an important intervention in treating acute respiratory failure caused by acute cardiogenic pulmonary edema (ACPE) and acute exacerbations of chronic obstructive pulmonary disease (COPD). Although there are studies that give evidence on the efficacy and safety of non-invasive ventilation over standard medical care for COPD and cardiogenic pulmonary edema, less are known about the form of non-invasive ventilation, continuous positive airway pressure (CPAP), or bilevel positive airway pressure (BiPAP) as an effective intervention for respiratory failure and its efficacy and safety in prehospital settings. We conducted a systematic review by using PubMed and Google Scholar as databases for collecting studies related to the effectiveness of CPAP and BiPAP for cardiogenic pulmonary edema and COPD; the major outcome studied was reducing rates of endotracheal intubation secondary and tertiary outcomes included mortality reduction and shortening length of hospital stay. The study follows the guidelines of the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) checklist 2009. Sixteen studies were identified, including systematic reviews, randomized control trials, and observational studies. Studies published on or after 2010 in a population greater than 40 years old suffering from acute COPD and cardiogenic pulmonary edema were taken for review. Studies that described other respiratory diseases treated with non-invasive ventilation were excluded. Quality appraisal was done using the Cochrane risk bias tool for randomized control trials, Amstar-2 for systematic reviews, and New Castle Ottawa Tool for observational studies. Five studies compared the effectiveness of CPAP and BiPAP with standard medical care in prehospital and emergency settings. Six studies described prehospital intervention. Both forms of non-invasive ventilation were equally significant and effective. Prehospital use had tremendously reduced intubation rates, with not much variability noticed for mortality and hospital stay. Non-invasive ventilation is an effective measure for respiratory failure secondary to COPD and ACPE. Early out of hospital utilization of CPAP and BiPAP reduces the rate of invasive ventilation and reduces complications due to endotracheal intubation. Endotracheal intubation is associated with a considerable incidence of complications like failed intubation, hypotension, or circulatory arrest, even if the emergency physician is well trained, making these forms of non-invasive ventilation safe and effective interventions in the prehospital settings.
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Affiliation(s)
- Ansha P Abubacker
- Emergency Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Andrew Ndakotsu
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Harsh V Chawla
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Aimen Iqbal
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Amit Grewal
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Revathi Myneni
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Govinathan Vivekanandan
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
| | - Safeera Khan
- Internal Medicine, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA
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Metkus TS, Stephens RS, Schulman S, Hsu S, Morrow DA, Eid SM. Utilization and outcomes of early respiratory support in 6.5 million acute heart failure hospitalizations. EUROPEAN HEART JOURNAL. QUALITY OF CARE & CLINICAL OUTCOMES 2021; 6:72-80. [PMID: 31225598 DOI: 10.1093/ehjqcco/qcz030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 06/09/2019] [Accepted: 06/13/2019] [Indexed: 12/19/2022]
Abstract
AIMS The incidence and outcomes of a requirement for non-invasive ventilation (NIV) or invasive mechanical ventilation (IMV) in acute heart failure (AHF) hospitalization are not clearly established. Thus, we aimed to characterize the incidence and trends in use of IMV and NIV in AHF and to estimate the magnitude of hazard for mortality associated with requiring IMV and NIV in AHF. METHODS AND RESULTS We used the National Inpatient Sample (NIS) to identify AHF hospitalizations between 2008 and 2014. The exposure variable of interest was IMV or NIV use within 24 h of hospital admission compared to no respiratory support. We analysed the association between ventilation strategies and in-hospital mortality using Cox proportional hazards models adjusting for demographics and comorbidities. We included 6 534 675 hospitalizations for AHF. Of these, 271 589 (4.16%) included NIV and 51 459 (0.79%) included IMV within the first 24 h of hospitalization and rates of NIV and IMV use increased over time. In-hospital mortality for AHF hospitalizations including NIV was 5.0% and 27% for IMV compared with 2.1% for neither (P < 0.001 for both). In an adjusted model, requirement for NIV was associated with over two-fold higher risk for in-hospital mortality [hazard ratio (HR) 2.10, 95% confidence interval (CI) 2.01-2.19; P < 0.001] and requirement for IMV was associated with over three-fold higher risk for in-hospital mortality (HR 3.39, 95% CI 3.14-3.66; P < 0.001). CONCLUSION Respiratory support is used in many AHF hospitalizations, and AHF patients who require respiratory support are at high risk for in-hospital mortality. Our work should inform prospective intervention trials and quality improvement ventures in this high-risk population.
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Affiliation(s)
- Thomas S Metkus
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Blalock 524, D2, 600 N Wolfe St, Baltimore, MD 21287, USA
| | - Robert Scott Stephens
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Johns Hopkins University School of Medicine, 600 N Wolfe St, Baltimore, MD 21287, USA
| | - Steven Schulman
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Blalock 524, D2, 600 N Wolfe St, Baltimore, MD 21287, USA
| | - Steven Hsu
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Blalock 524, D2, 600 N Wolfe St, Baltimore, MD 21287, USA
| | - David A Morrow
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA
| | - Shaker M Eid
- Department of Medicine, Johns Hopkins University School of Medicine, 4940 Eastern Ave, Baltimore, MD 21224, USA
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Chawla R, Dixit SB, Zirpe KG, Chaudhry D, Khilnani GC, Mehta Y, Khatib KI, Jagiasi BG, Chanchalani G, Mishra RC, Samavedam S, Govil D, Gupta S, Prayag S, Ramasubban S, Dobariya J, Marwah V, Sehgal I, Jog SA, Kulkarni AP. ISCCM Guidelines for the Use of Non-invasive Ventilation in Acute Respiratory Failure in Adult ICUs. Indian J Crit Care Med 2020; 24:S61-S81. [PMID: 32205957 PMCID: PMC7085817 DOI: 10.5005/jp-journals-10071-g23186] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
A. ACUTE HYPERCAPNIC RESPIRATORY FAILURE A1. Acute Exacerbation of COPD: Recommendations: NIV should be used in management of acute exacerbation of COPD in patients with acute or acute-on-chronic respiratory acidosis (pH = 7.25-7.35). (1A) NIV should be attempted in patients with acute exacerbation of COPD (pH <7.25 & PaCO2 ≥ 45) before initiating invasive mechanical ventilation (IMV) except in patients requiring immediate intubation. (2A). Lower the pH higher the chance of failure of NIV. (2B) NIV should not to be used routinely in normo- or mildly hyper-capneic patients with acute exacerbation of COPD, without acidosis (pH > 7.35). (2B) A2. NIV in ARF due to Chest wall deformities/Neuromuscular diseases: Recommendations: NIV may be used in patients of ARF due to chest wall deformity/Neuromuscular diseases. (PaCO2 ≥ 45) (UPP) A3. NIV in ARF due to Obesity hypoventilation syndrome (OHS): Recommendations: NIV may be used in AHRF in OHS patients when they present with acute hypercapnic or acute on chronic respiratory failure (pH 45). (3B) NIV/CPAP may be used in obese, hypercapnic patients with OHS and/or right heart failure in the absence of acidosis. (UPP) B. NIV IN ACUTE HYPOXEMIC RESPIRATORY FAILURE B1. NIV in Acute Cardiogenic Pulmonary Oedema: Recommendations: NIV is recommended in hospital patients with ARF, due to Cardiogenic pulmonary edema. (1A). NIV should be used in patients with acute heart failure/ cardiogenic pulmonary edema, right from emergency department itself. (1B) Both CPAP and BiPAP modes are safe and effective in patients with cardiogenic pulmonary edema. (1A). However, BPAP (NIV-PS) should be preferred in cardiogenic pulmonary edema with hypercapnia. (3A) B2. NIV in acute hypoxemic respiratory failure: Recommendations: NIV may be used over conventional oxygen therapy in mild early acute hypoxemic respiratory failure (P/F ratio <300 and >200 mmHg), under close supervision. (2B) We strongly recommend against a trial of NIV in patients with acute hypoxemic failure with P/F ratio <150. (2A) B3. NIV in ARF due to Chest Trauma: Recommendations: NIV may be used in traumatic flail chest along with adequate pain relief. (3B) B4. NIV in Immunocompromised Host: Recommendations: In Immunocompromised patients with early ARF, we may consider NIV over conventional oxygen. (2B). B5. NIV in Palliative Care: Recommendations: We strongly recommend use of NIV for reducing dyspnea in palliative care setting. (2A) B6. NIV in post-operative cases: Recommendations: NIV should be used in patients with post-operative acute respiratory failure. (2A) B6a. NIV in abdominal surgery: Recommendations: NIV may be used in patients with ARF following abdominal surgeries. (2A) B6b. NIV in bariatric surgery: Recommendations: NIV may be used in post-bariatric surgery patients with pre-existent OSA or OHS. (3A) B6c. NIV in Thoracic surgery: Recommendations: In cardiothoracic surgeries, use of NIV is recommended post operatively for acute respiratory failure to improve oxygenation and reduce chance of reintubation. (2A) NIV should not be used in patients undergoing esophageal surgery. (UPP) B6d. NIV in post lung transplant: Recommendations: NIV may be used for shortening weaning time and to avoid re-intubation following lung transplantation. (2B) B7. NIV during Procedures (ETI/Bronchoscopy/TEE/Endoscopy): Recommendations: NIV may be used for pre-oxygenation before intubation. (2B) NIV with appropriate interface may be used in patients of ARF during Bronchoscopy/Endoscopy to improve oxygenation. (3B) B8. NIV in Viral Pneumonitis ARDS: Recommendations: NIV cannot be considered as a treatment of choice for patients with acute respiratory failure with H1N1 pneumonia. However, it may be reasonable to use NIV in selected patients with single organ involvement, in a strictly controlled environment with close monitoring. (2B) B9. NIV and Acute exacerbation of Pulmonary Tuberculosis: Recommendations: Careful use of NIV in patients with acute Tuberculosis may be considered, with effective infection control precautions to prevent air-borne transmission. (3B) B10. NIV after planned extubation in high risk patients: Recommendation: We recommend that NIV may be used to wean high risk patients from invasive mechanical ventilation as it reduces re-intubation rate. (2B) B11. NIV for respiratory distress post extubation: Recommendations: We recommend that NIV therapy should not be used to manage respiratory distress post-extubation in high risk patients. (2B) C. APPLICATION OF NIV Recommendation: Choice of mode should be mainly decided by factors like disease etiology and severity, the breathing effort by the patient and the operator familiarity and experience. (UPP) We suggest using flow trigger over pressure triggering in assisted modes, as it provides better patient ventilator synchrony. Especially in COPD patients, flow triggering has been found to benefit auto PEEP. (3B) D. MANAGEMENT OF PATIENT ON NIV D1. Sedation: Recommendations: A non-pharmacological approach to calm the patient (Reassuring the patient, proper environment) should always be tried before administrating sedatives. (UPP) In patients on NIV, sedation may be used with extremely close monitoring and only in an ICU setting with lookout for signs of NIV failure. (UPP) E. EQUIPMENT Recommendations: We recommend that portable bilevel ventilators or specifically designed ICU ventilators with non-invasive mode should be used for delivering Non-invasive ventilation in critically ill patients. (UPP) Both critical care ventilators with leak compensation and bi-level ventilators have been equally effective in decreasing the WOB, RR, and PaCO2. (3B) Currently, Oronasal mask is the most preferred interface for non-invasive ventilation for acute respiratory failure. (3B) F. WEANING Recommendations: We recommend that weaning from NIV may be done by a standardized protocol driven approach of the unit. (2B) How to cite this article: Chawla R, Dixit SB, Zirpe KG, Chaudhry D, Khilnani GC, Mehta Y, et al. ISCCM Guidelines for the Use of Non-invasive Ventilation in Acute Respiratory Failure in Adult ICUs. Indian J Crit Care Med 2020;24(Suppl 1):S61-S81.
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Affiliation(s)
- Rajesh Chawla
- Department of Respiratory and Critical Care Medicine, Indraprastha Apollo Hospitals, New Delhi, India, , e-mail:
| | - Subhal B Dixit
- Department of Critical Care, Sanjeevan & MJM Hospital, Pune, Maharashtra, India, , 020-25531539 / 25539538, e-mail:
| | - Kapil Gangadhar Zirpe
- Department of Neurotrauma Unit, Ruby Hall Clinic, Pune, Maharashtra, India, , e-mail:
| | - Dhruva Chaudhry
- Department of Pulmonary and Critical Care Medicine, PGIMS, Rohtak, Haryana, India, , e-mail:
| | - G C Khilnani
- Department of PSRI Institute of Pulmonary, Critical Care and Sleep Medicine, PSRI Hospital, New Delhi, India, , e-mail:
| | - Yatin Mehta
- Department of Medanta Institute of Critical Care and Anesthesiology, Medanta The Medicity, Sector-38, Gurgaon-122001, Haryana, India, Extn. 3335, e-mail:
| | - Khalid Ismail Khatib
- Department of Medicine, SKN Medical College, Pune, Maharashtra, India, , e-mail:
| | - Bharat G Jagiasi
- Department of Critical Care, Reliance Hospital, Navi Mumbai, Maharashtra, India, , e-mail:
| | - Gunjan Chanchalani
- Department of Critical Care Medicine, Bhatia Hospital, Mumbai, Maharashtra, India, , e-mail:
| | - Rajesh C Mishra
- Department of Critical Care, Saneejivini Hospital, Vastrapur, Ahmedabad, Gujarat, India, , e-mail:
| | - Srinivas Samavedam
- Department of Critical Care, Virinchi Hospital, Hyderabad, Telangana, India, , e-mail:
| | - Deepak Govil
- Department of Critical Care, Medanta Hospital, The Medicity, Gurugram, Haryana, India, , e-mail:
| | - Sachin Gupta
- Department of Critical Care Medicine, Narayana Superspeciality Hospital, Gurugram, Haryana, India, , e-mail:
| | - Shirish Prayag
- Department of Critical Care, Prayag Hospital, Pune, Maharashtra, India, , e-mail:
| | - Suresh Ramasubban
- Department of Critical Care, Apollo Gleneagles Hospital Limited, Kolkata, India, , e-mail:
| | - Jayesh Dobariya
- Department of critical care, Synergy Hospital Rajkot, Rajkot, Gujarat, India, , e-mail:
| | - Vikas Marwah
- Department of Pulmonary, Critical Care and Sleep Medicine, Military Hospital (CTC), Pune, Maharashtra, India, , e-mail:
| | - Inder Sehgal
- Department of Pulmonary Medicine, Postgraduate Institute of Medical Education and Research, Sector 12, Chandigarh, India, , e-mail:
| | - Sameer Arvind Jog
- Department of Critical Care, Deenanath Mangeshkar Hospital, Pune, Maharashtra, India, , 91-9823018178, e-mail:
| | - Atul Prabhakar Kulkarni
- Department of Division of Critical Care Medicine, Department of Anaesthesia, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra, India, , e-mail:
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