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Helms J, Catoire P, Abensur Vuillaume L, Bannelier H, Douillet D, Dupuis C, Federici L, Jezequel M, Jozwiak M, Kuteifan K, Labro G, Latournerie G, Michelet F, Monnet X, Persichini R, Polge F, Savary D, Vromant A, Adda I, Hraiech S. Oxygen therapy in acute hypoxemic respiratory failure: guidelines from the SRLF-SFMU consensus conference. Ann Intensive Care 2024; 14:140. [PMID: 39235690 PMCID: PMC11377397 DOI: 10.1186/s13613-024-01367-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/09/2024] [Indexed: 09/06/2024] Open
Abstract
INTRODUCTION Although largely used, the place of oxygen therapy and its devices in patients with acute hypoxemic respiratory failure (ARF) deserves to be clarified. The French Intensive Care Society (Société de Réanimation de Langue Française, SRLF) and the French Emergency Medicine Society (Société Française de Médecine d'Urgence, SFMU) organized a consensus conference on oxygen therapy in ARF (excluding acute cardiogenic pulmonary oedema and hypercapnic exacerbation of chronic obstructive diseases) in December 2023. METHODS A committee without any conflict of interest (CoI) with the subject defined 7 generic questions and drew up a list of sub questions according to the population, intervention, comparison and outcomes (PICO) model. An independent work group reviewed the literature using predefined keywords. The quality of the data was assessed using the GRADE methodology. Fifteen experts in the field from both societies proposed their own answers in a public session and answered questions from the jury (a panel of 16 critical-care and emergency medicine physicians, nurses and physiotherapists without any CoI) and the public. The jury then met alone for 48 h to write its recommendations. RESULTS The jury provided 22 statements answering 11 questions: in patients with ARF (1) What are the criteria for initiating oxygen therapy? (2) What are the targets of oxygen saturation? (3) What is the role of blood gas analysis? (4) When should an arterial catheter be inserted? (5) Should standard oxygen therapy, high-flow nasal cannula oxygen therapy (HFNC) or continuous positive airway pressure (CPAP) be preferred? (6) What are the indications for non-invasive ventilation (NIV)? (7) What are the indications for invasive mechanical ventilation? (8) Should awake prone position be used? (9) What is the role of physiotherapy? (10) Which criteria necessarily lead to ICU admission? (11) Which oxygenation device should be preferred for patients for whom a do-not-intubate decision has been made? CONCLUSION These recommendations should optimize the use of oxygen during ARF.
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Affiliation(s)
- Julie Helms
- Service de Médecine Intensive-Réanimation, Nouvel Hôpital Civil, Hôpitaux Universitaires de Strasbourg, 1, Place de l'Hôpital, 67091, Strasbourg Cedex, France.
- UMR 1260, Regenerative Nanomedicine (RNM), FMTS, INSERM (French National Institute of Health and Medical Research), Strasbourg, France.
| | - Pierre Catoire
- Emergency Medicine Department, University Hospital of Bordeaux, 1 Place Amélie Raba Léon, 33000, Bordeaux, France
| | - Laure Abensur Vuillaume
- SAMU57, Service d'Accueil des Urgences, Centre Hospitalier Régional Metz-Thionville, 57530, Ars-Laquenexy, France
| | - Héloise Bannelier
- Service d'Accueil des Urgences - SMUR Hôpital Pitié Salpêtrière Assistance Publique - Hôpitaux de Paris (APHP), Paris, France
| | - Delphine Douillet
- Department of Emergency Medicine, University Hospital of Angers, Angers, France
- UNIV Angers, UMR MitoVasc CNRS 6215 INSERM 1083, Angers, France
| | - Claire Dupuis
- CHU Clermont-Ferrand, Service de Réanimation Médicale, Clermont-Ferrand, France
- Unité de Nutrition Humaine, Université Clermont Auvergne, INRAe, CRNH Auvergne, 63000, Clermont-Ferrand, France
| | - Laura Federici
- Service d'Anesthésie Réanimation, Centre Hospitalier D'Ajaccio, Ajaccio, France
| | - Melissa Jezequel
- Unité de Soins Intensifs Cardiologiques, Hôpital de Saint Brieuc, Saint-Brieuc, France
| | - Mathieu Jozwiak
- Service de Médecine Intensive Réanimation, CHU de Nice, 151 Route Saint Antoine de Ginestière, 06200, Nice, France
- UR2CA - Unité de Recherche Clinique Côte d'Azur, Université Côte d'Azur, Nice, France
| | | | - Guylaine Labro
- Service de Réanimation Médicale GHRMSA, 68100, Mulhouse, France
| | - Gwendoline Latournerie
- Pole de Médecine d'Urgence- CHU Toulouse, Toulouse, France
- Université Toulouse III Paul Sabatier, Toulouse, France
| | - Fabrice Michelet
- Service de Réanimation, Hôpital de Saint Brieuc, Saint-Brieuc, France
| | - Xavier Monnet
- AP-HP, Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU 4 CORREVE, Inserm UMR S_999, FHU SEPSIS, CARMAS, Université Paris-Saclay, 78 Rue du Général Leclerc, 94270, Le Kremlin-Bicêtre, France
| | - Romain Persichini
- Service de Réanimation et Soins Continus, CH de Saintes, Saintes, France
| | - Fabien Polge
- Hôpitaux Universitaires de Paris Centre Site Cochin APHP, Paris, France
| | - Dominique Savary
- Département de Médecine d'Urgences, CHU d'Angers, 4 Rue Larrey, 49100, Angers, France
- IRSET Institut de Recherche en Santé, Environnement et Travail/Inserm EHESP - UMR_S1085, CAPTV CDC, 49000, Angers, France
| | - Amélie Vromant
- Service d'Accueil des Urgences, Hôpital La Pitié Salpetrière, Paris, France
| | - Imane Adda
- Department of Research, One Clinic, Paris, France
- PointGyn, Paris, France
| | - Sami Hraiech
- Service de Médecine Intensive - Réanimation, AP-HM, Hôpital Nord, Marseille, France
- Faculté de Médecine, Centre d'Études et de Recherches sur les Services de Santé et Qualité de vie EA 3279, Aix-Marseille Université, 13005, Marseille, France
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Cunanan B, Muppa H, Orellana L, Bates S, McGain F. Blood gas sampling in the intensive care unit: A prospective before-and-after interventional study on the effect of an educational program on blood gas testing frequency. Aust Crit Care 2024; 37:755-760. [PMID: 38580484 DOI: 10.1016/j.aucc.2024.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 12/11/2023] [Accepted: 01/20/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Blood gas analysis is the most commonly ordered test in the intensive care unit. Each investigation, however, comes with risks and costs to the patient and healthcare system. Evidence suggests that many tests are performed with no appropriate clinical indication. OBJECTIVES The primary aim of our prospective interventional study was to investigate the proportion of blood gases undertaken with a valid clinical indication before and after an educational intervention. A secondary aim was to examine sleep interruption secondary to blood gas sampling. METHODS A prospective, before-and-after interventional study was conducted across two metropolitan intensive care units in Melbourne, Australia. Adults aged ≥18 years who were admitted to intensive care were eligible for inclusion. Two observation periods were conducted across a 2-week period in May and September 2022 (Periods 1 and 2), where clinicians were encouraged to record the purpose of blood gas sampling and other relevant data via an electronic questionnaire. These data were reviewed with corresponding electronic medical records. In between these periods, an interventional educational program to inform the clinical rationale for blood gas testing was delivered during July and August 2022, including introduction of a clinical guideline. RESULTS There were 68 patients with 688 tests included in Period 1 compared to 69 patients with 756 tests in Period 2. There was no significant difference between the median number of blood gas analyses performed per patient before and after the educational intervention (6.0 tests per patient vs 5.0 tests per patient, p = 0.609). However, there was a significant increase in the percentage of tests with a valid clinical indication (49.0% vs 59.7%, p = 0.0025). The most common indications selected were routine measurement, monitoring a clinical value, change in ventilator settings/oxygen therapy, and clinical deterioration. In addition, there were a large number of patients who were awakened upon drawing of a blood sample for analysis (26.1% for Period 1 and 37.6% for Period 2, p = 0.06). CONCLUSION The implementation of an educational program resulted in a significant increase in the proportion of blood gases performed with an appropriate clinical indication. There was, however, no reduction in the overall number of blood gases performed.
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Affiliation(s)
- Benjamin Cunanan
- Department of Intensive Care, Western Health, Footscray, Victoria, Australia.
| | - Haindavi Muppa
- Department of Intensive Care, Western Health, Footscray, Victoria, Australia
| | - Liliana Orellana
- Biostatistics Unit, Deakin University, Geelong, Victoria, Australia
| | - Samantha Bates
- Department of Intensive Care, Western Health, Footscray, Victoria, Australia; Department of Critical Care, The University of Melbourne, Melbourne, Victoria, Australia
| | - Forbes McGain
- Department of Intensive Care, Western Health, Footscray, Victoria, Australia; Department of Critical Care, The University of Melbourne, Melbourne, Victoria, Australia
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Lehut T, Lambert C, Mortier R, Futier E, Chabanne R, Bauer U, Verdier P, Ravan R, Ocquidant P, Mourgues C, Lautrette A. Cost awareness among intensivists in their daily clinical practice: a prospective multicentre study. THE EUROPEAN JOURNAL OF HEALTH ECONOMICS : HEPAC : HEALTH ECONOMICS IN PREVENTION AND CARE 2024:10.1007/s10198-024-01686-y. [PMID: 38472725 DOI: 10.1007/s10198-024-01686-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 02/13/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Better cost-awareness is a prerogative in achieving the best benefit/risk/cost ratio in the care. We aimed to assess the cost-awareness of intensivists in their daily clinical practice and to identify factors associated with accurate estimate of cost (50-150% of the real cost). METHODS We performed a prospective observational study in seven French ICUs. We compared the estimate of intensivists of the daily costs of caring with the real costs on a given day. The estimates covered five categories (drugs, laboratory tests, imaging modalities, medical devices, and waste) whose sum represented the overall cost. RESULTS Of the 234 estimates made by 65 intensivists, 70 (29.9%) were accurate. The median overall cost estimate (€330 [170; 620]) was significantly higher than the real cost (€178 [124; 239], p < 0.001). This overestimation was found in four categories, in particular for waste (€40 [15; 100] vs. €1.1 [0.6; 2.3], p < 0.001). Only the laboratory tests were underestimated (€65 [30; 120] vs. €106 [79; 138], p < 0.001). Being aware of the financial impact of prescriptions was factor associated with accurate estimate (OR: 5.05, 95%CI:1.47-17.4, p = 0.01). However, feeling able to accurately perform estimation was factor negatively associated with accurate estimate (OR: 0.11, 95%CI: 0.02-0.71, p = 0.02). CONCLUSION French intensivists have a poor awareness of costs in their daily clinical practice. Raising awareness of the financial impact of prescriptions, and of the cost of laboratory tests and waste are the main areas for improvement that could help achieve the objective of the best care at the best cost.
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Affiliation(s)
- Timothée Lehut
- Department of Anaesthesiology and Critical Care Medicine, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Céline Lambert
- Biostatistics Unit, DRCI, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Romain Mortier
- Biostatistics Unit, DRCI, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Emmanuel Futier
- Department of Anaesthesiology and Critical Care Medicine, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Russell Chabanne
- Department of Anaesthesiology and Critical Care Medicine, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Ulrich Bauer
- Intensive Care Unit, Cancer Center Jean Perrin, Clermont-Ferrand, France
| | - Philippe Verdier
- Intensive Care Unit, Centre Hospitalier de Montluçon, Montluçon, France
| | - Ramin Ravan
- Intensive Care Unit, Centre Hospitalier Jacques Lacarin, Vichy, France
| | | | - Charline Mourgues
- Biostatistics Unit, DRCI, CHU Clermont-Ferrand, Clermont-Ferrand, France
| | - Alexandre Lautrette
- Intensive Care Unit, Cancer Center Jean Perrin, Clermont-Ferrand, France.
- Intensive Care Medicine, CHU Clermont-Ferrand,Intensive Care Unit, Cancer Centre Jean Perrin, Clermont-Ferrand, 54 rue Montalembert BP69, Cedex 1, 63003, France.
- LMGE (Laboratoire Micro-organismes: Génome et Environnement), UMR CNRS 6023, Université Clermont Auvergne, Clermont-Ferrand, France.
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Wanzer MB, Wilson T, Fitzpatrick S. Implementation of an arterial blood gas indication algorithm in cardiac surgery. JOURNAL OF VASCULAR NURSING 2024; 42:44-52. [PMID: 38555177 DOI: 10.1016/j.jvn.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 11/18/2023] [Accepted: 11/19/2023] [Indexed: 04/02/2024]
Abstract
PROBLEM Arterial blood gasses (ABGs) account for an estimated 10-20% of all costs during an ICU stay. Non-clinically indicated ABGs increased costs of care, lengths of stay, ventilator days, and line days, increasing the risk of adverse outcomes in already vulnerable critically ill patients. A cardiac surgery intensive care unit (CSICU) within a large urban mid-Atlantic academic medical center accounted for 31% of the entire institution's ABG analyses between 2018-2019, was identified as a top utilizer due to inappropriate ordering practices compared to current guidelines. PURPOSE The purpose of this quality improvement project was to implement an algorithm using evidence-based guidelines that identified appropriate standardized clinical indications for ABGs, with the intention of reducing non-clinically indicated blood gas analyses orders within the CSICU. Anticipated outcomes of this practice change included decreasing the total volume of ABGs sent, resulting in reduced costs of care, lengths of stay, and improved morbidity and mortality rates. METHODS An evidence-based ABG indication algorithm was created focusing on acute changes in oxygenation, ventilation, acid base balance; changes in hemodynamics, post-operative baseline, and for patient ABGs to correlate with extra-corporeal membranous oxygenation values. Routine ABGs for monitoring were eliminated. Implementation occurred over fourteen-weeks in the fall of 2020 following staff and provider education. Training emphasized the use of non-invasive monitoring such as pulse-oximetry and capnography. Compliance and gross laboratory totals and indications were obtained from weekly auditing. RESULTS There was an 8.8% reduction in ABGs obtained and 32% decrease in ABGs per patient day. The most common indications were extra-corporeal membranous oxygenation (ECMO)-correlated ABGs, post-operative, and changes in oxygenation and/or ventilation; 7.8% were non-indicated. CONCLUSIONS Implementation of an ABG indication algorithm resulted in fewer ABGs sent, mostly due to a reduction in routine monitoring, and ABGs were more likely to be clinically indicated in response to an acute concern. Implementing an ABG indication algorithm is safe, feasible, and can lead to significant cost reductions for the institution.
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Affiliation(s)
- Megan B Wanzer
- University of Maryland Medical Center, 22 South Greene Street, Baltimore, MD, United States
| | - Tracey Wilson
- Greater Baltimore Medical Center, 6701 North Charles Street, Towson, MD, United States
| | - Suzanna Fitzpatrick
- University of Maryland Medical Center, 22 South Greene Street, Baltimore, MD, United States.
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Devis L, Catry E, Honore PM, Mansour A, Lippi G, Mullier F, Closset M. Interventions to improve appropriateness of laboratory testing in the intensive care unit: a narrative review. Ann Intensive Care 2024; 14:9. [PMID: 38224401 PMCID: PMC10789714 DOI: 10.1186/s13613-024-01244-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 01/03/2024] [Indexed: 01/16/2024] Open
Abstract
Healthcare expenses are increasing, as is the utilization of laboratory resources. Despite this, between 20% and 40% of requested tests are deemed inappropriate. Improper use of laboratory resources leads to unwanted consequences such as hospital-acquired anemia, infections, increased costs, staff workload and patient stress and discomfort. The most unfavorable consequences result from unnecessary follow-up tests and treatments (overuse) and missed or delayed diagnoses (underuse). In this context, several interventions have been carried out to improve the appropriateness of laboratory testing. To date, there have been few published assessments of interventions specific to the intensive care unit. We reviewed the literature for interventions implemented in the ICU to improve the appropriateness of laboratory testing. We searched literature from 2008 to 2023 in PubMed, Embase, Scopus, and Google Scholar databases between April and June 2023. Five intervention categories were identified: education and guidance (E&G), audit and feedback, gatekeeping, computerized physician order entry (including reshaping of ordering panels), and multifaceted interventions (MFI). We included a sixth category exploring the potential role of artificial intelligence and machine learning (AI/ML)-based assisting tools in such interventions. E&G-based interventions and MFI are the most frequently used approaches. MFI is the most effective type of intervention, and shows the strongest persistence of effect over time. AI/ML-based tools may offer valuable assistance to the improvement of appropriate laboratory testing in the near future. Patient safety outcomes are not impaired by interventions to reduce inappropriate testing. The literature focuses mainly on reducing overuse of laboratory tests, with only one intervention mentioning underuse. We highlight an overall poor quality of methodological design and reporting and argue for standardization of intervention methods. Collaboration between clinicians and laboratory staff is key to improve appropriate laboratory utilization. This article offers practical guidance for optimizing the effectiveness of an intervention protocol designed to limit inappropriate use of laboratory resources.
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Affiliation(s)
- Luigi Devis
- Department of Laboratory Medicine, Biochemistry, CHU UCL Namur, Université catholique de Louvain, Yvoir, Belgium
| | - Emilie Catry
- Department of Laboratory Medicine, Biochemistry, CHU UCL Namur, Université catholique de Louvain, Yvoir, Belgium
- Institute for Experimental and Clinical Research (IREC), Pôle Mont Godinne (MONT), UCLouvain, Yvoir, Belgium
| | - Patrick M Honore
- Department of Intensive Care, CHU UCL Namur, Université catholique de Louvain, Yvoir, Belgium
| | - Alexandre Mansour
- Department of Anesthesia and Critical Care, Pontchaillou University Hospital of Rennes, Rennes, France
- IRSET-INSERM-1085, Univ Rennes, Rennes, France
| | - Giuseppe Lippi
- Section of Clinical Biochemistry and School of Medicine, University Hospital of Verona, Verona, Italy
| | - François Mullier
- Department of Laboratory Medicine, Hematology, CHU UCL Namur, Université catholique de Louvain, Yvoir, Belgium
- Namur Thrombosis and Hemostasis Center (NTHC), Namur Research Institute for Life Sciences (NARILIS), Namur, Belgium
- Institute for Experimental and Clinical Research (IREC), Pôle Mont Godinne (MONT), UCLouvain, Yvoir, Belgium
| | - Mélanie Closset
- Department of Laboratory Medicine, Biochemistry, CHU UCL Namur, Université catholique de Louvain, Yvoir, Belgium.
- Institute for Experimental and Clinical Research (IREC), Pôle Mont Godinne (MONT), UCLouvain, Yvoir, Belgium.
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Zhang X, Sun Y, Zhang H, Lu H, Ji X. The Relationship Between the Utilization of Arterial Blood Gas Analysis and Rehospitalization in Heart Failure: A Retrospective Cohort Study. Front Cardiovasc Med 2022; 9:847049. [PMID: 35557524 PMCID: PMC9086592 DOI: 10.3389/fcvm.2022.847049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 03/25/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe most common presentation of decompensated HF is dyspnea, and arterial blood gas analysis is an excellent tool for the decision-making process for most dyspneic patients. However, data on the prognostic value of ABG in HF patients are limited. Herein, a retrospective cohort study was conducted to investigate whether the utilization of arterial blood gas analysis was independently associated with re-hospitalization in patients with heart failure.MethodsAs a retrospective cohort study, the relevant clinical data of hospitalized patients admitted to Zigong Fourth People's Hospital, Sichuan, China from December 2016 to June 2019 with a diagnosis of HF were analyzed. The re-hospitalization within 6 months and the use of intravenous diuretic, nitrates, inotropes, or vasopressors were compared between patients with and without arterial blood gas analysis. We used a multivariable logistic regression model, propensity score analysis, and an inverse probability-weighting model to ensure the robustness of our findings.ResultsWe included 1,605 patients with heart failure. The overall re-hospitalization rate within 6 months was 38.2%; it was 34.8% and 41.8% for heart failure patients with or without arterial blood gas analysis, respectively. In the inverse probability-weighting model, the use of arterial blood gas analysis was associated with a 26% lower re-hospitalization rate within 6 months.ConclusionThe performance of arterial blood gas analysis is associated with a 6-month rehospitalization rate benefit in a general population of heart failure patients. This association warrants further investigation.
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Wong AKI, Charpignon M, Kim H, Josef C, de Hond AAH, Fojas JJ, Tabaie A, Liu X, Mireles-Cabodevila E, Carvalho L, Kamaleswaran R, Madushani RWMA, Adhikari L, Holder AL, Steyerberg EW, Buchman TG, Lough ME, Celi LA. Analysis of Discrepancies Between Pulse Oximetry and Arterial Oxygen Saturation Measurements by Race and Ethnicity and Association With Organ Dysfunction and Mortality. JAMA Netw Open 2021; 4:e2131674. [PMID: 34730820 PMCID: PMC9178439 DOI: 10.1001/jamanetworkopen.2021.31674] [Citation(s) in RCA: 114] [Impact Index Per Article: 38.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Discrepancies in oxygen saturation measured by pulse oximetry (Spo2), when compared with arterial oxygen saturation (Sao2) measured by arterial blood gas (ABG), may differentially affect patients according to race and ethnicity. However, the association of these disparities with health outcomes is unknown. OBJECTIVE To examine racial and ethnic discrepancies between Sao2 and Spo2 measures and their associations with clinical outcomes. DESIGN, SETTING, AND PARTICIPANTS This multicenter, retrospective, cross-sectional study included 3 publicly available electronic health record (EHR) databases (ie, the Electronic Intensive Care Unit-Clinical Research Database and Medical Information Mart for Intensive Care III and IV) as well as Emory Healthcare (2014-2021) and Grady Memorial (2014-2020) databases, spanning 215 hospitals and 382 ICUs. From 141 600 hospital encounters with recorded ABG measurements, 87 971 participants with first ABG measurements and an Spo2 of at least 88% within 5 minutes before the ABG test were included. EXPOSURES Patients with hidden hypoxemia (ie, Spo2 ≥88% but Sao2 <88%). MAIN OUTCOMES AND MEASURES Outcomes, stratified by race and ethnicity, were Sao2 for each Spo2, hidden hypoxemia prevalence, initial demographic characteristics (age, sex), clinical outcomes (in-hospital mortality, length of stay), organ dysfunction by scores (Sequential Organ Failure Assessment [SOFA]), and laboratory values (lactate and creatinine levels) before and 24 hours after the ABG measurement. RESULTS The first Spo2-Sao2 pairs from 87 971 patient encounters (27 713 [42.9%] women; mean [SE] age, 62.2 [17.0] years; 1919 [2.3%] Asian patients; 26 032 [29.6%] Black patients; 2397 [2.7%] Hispanic patients, and 57 632 [65.5%] White patients) were analyzed, with 4859 (5.5%) having hidden hypoxemia. Hidden hypoxemia was observed in all subgroups with varying incidence (Black: 1785 [6.8%]; Hispanic: 160 [6.0%]; Asian: 92 [4.8%]; White: 2822 [4.9%]) and was associated with greater organ dysfunction 24 hours after the ABG measurement, as evidenced by higher mean (SE) SOFA scores (7.2 [0.1] vs 6.29 [0.02]) and higher in-hospital mortality (eg, among Black patients: 369 [21.1%] vs 3557 [15.0%]; P < .001). Furthermore, patients with hidden hypoxemia had higher mean (SE) lactate levels before (3.15 [0.09] mg/dL vs 2.66 [0.02] mg/dL) and 24 hours after (2.83 [0.14] mg/dL vs 2.27 [0.02] mg/dL) the ABG test, with less lactate clearance (-0.54 [0.12] mg/dL vs -0.79 [0.03] mg/dL). CONCLUSIONS AND RELEVANCE In this study, there was greater variability in oxygen saturation levels for a given Spo2 level in patients who self-identified as Black, followed by Hispanic, Asian, and White. Patients with and without hidden hypoxemia were demographically and clinically similar at baseline ABG measurement by SOFA scores, but those with hidden hypoxemia subsequently experienced higher organ dysfunction scores and higher in-hospital mortality.
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Affiliation(s)
- An-Kwok Ian Wong
- Division of Pulmonary, Allergy, Critical Care,
and Sleep Medicine, Emory University, Atlanta, Georgia
- Division of Pulmonary, Allergy, and Critical
Care Medicine, Duke University, Durham, North Carolina
| | - Marie Charpignon
- MIT Institute for Data, Systems and Society,
Cambridge, Massachusetts
| | - Han Kim
- Department of Biomedical Engineering, Johns
Hopkins University, Baltimore, Maryland
| | | | - Anne A. H. de Hond
- Leiden University Medical Centre, Department of
Biomedical Data Sciences, Leiden, the Netherlands
- Leiden University Medical Centre, Department of
Information Technology and Digital Innovation, Leiden, the Netherlands
| | - Jhalique Jane Fojas
- Department of Neurology, Beth Israel Deaconess
Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Azade Tabaie
- Department of Biomedical Informatics, Emory
University, Atlanta, Georgia
| | - Xiaoli Liu
- School of Biological Science and Medical
Engineering, Beihang University, Beijing, China
| | | | - Leandro Carvalho
- Respiratory Institute, Cleveland Clinic,
Cleveland, Ohio
- Sociedade Mineira de Terapia Intensiva, Belo
Horizonte, Brazil
| | | | | | - Lasith Adhikari
- Connected Care and Personal Health, Philips
Research North America, Cambridge, Massachusetts
| | - Andre L. Holder
- Division of Pulmonary, Allergy, Critical Care,
and Sleep Medicine, Emory University, Atlanta, Georgia
| | - Ewout W. Steyerberg
- Leiden University Medical Centre, Department of
Biomedical Data Sciences, Leiden, the Netherlands
| | | | - Mary E. Lough
- Medicine–Primary Care and Population
Health, Stanford University, California
- Office of Research, Stanford Health Care,
Stanford, California
| | - Leo Anthony Celi
- Massachusetts Institute of Technology,
Laboratory for Computational Physiology, Cambridge
- Division of Pulmonary, Critical Care, and
Sleep Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts
- Department of Biostatistics, Harvard T.H. Chan
School of Public Health, Boston, Massachusetts
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Chandran J, D'Silva C, Sriram S, Krishna B. Clinical Utility of Arterial Blood Gas Test in an Intensive Care Unit: An Observational Study. Indian J Crit Care Med 2021; 25:172-175. [PMID: 33707895 PMCID: PMC7922451 DOI: 10.5005/jp-journals-10071-23719] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background Arterial blood gas (ABG) analysis is a common test ordered in critically ill patients. Often, it is performed very frequently without influencing patient care. Hence, we decided to check the utility of the ABG test in our intensive care unit (ICU). Materials and methods The data of the previous day ABGs were captured by reviewing the chart in an online pro forma which was filled by the authors. Data relating to patient's details, who ordered ABGs, reason for ordering ABGs, and did the ABG influence patient's management were entered. A total of 985 ABGs were performed in 173 patients for 2 months which was analyzed. Results Out of 985 ABGs, in 259 instances (26.29%), interventions were done after reviewing an ABG. The major interventions among these ABGs were ventilator settings adjustment in 134 ABGs (13.6%). A total of 790 ABGs were done routinely with no specific indication (80.20%), while doctors ordered one following an event for 195 ABGs (19.80%). Conclusion Our data suggest that 80% of ABG tests were ordered as part of a routine test. How to cite this article Chandran J, D'Silva C, Sriram S, Krishna B. Clinical Utility of Arterial Blood Gas Test in an Intensive Care Unit: An Observational Study. Indian J Crit Care Med 2021;25(2):172–175.
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Affiliation(s)
- Jagadish Chandran
- Department of Critical Care Medicine, St. John's Medical College and Hospital, Bengaluru, Karnataka, India
| | - Carol D'Silva
- Department of Critical Care Medicine, St. John's Medical College and Hospital, Bengaluru, Karnataka, India
| | - Sampath Sriram
- Department of Critical Care Medicine, St. John's Medical College and Hospital, Bengaluru, Karnataka, India
| | - Bhuvana Krishna
- Department of Critical Care Medicine, St. John's Medical College and Hospital, Bengaluru, Karnataka, India
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9
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Adams JY, Rogers AJ, Schuler A, Marelich GP, Fresco JM, Taylor SL, Riedl AW, Baker JM, Escobar GJ, Liu VX. Association Between Peripheral Blood Oxygen Saturation (SpO 2)/Fraction of Inspired Oxygen (FiO 2) Ratio Time at Risk and Hospital Mortality in Mechanically Ventilated Patients. Perm J 2020; 24:19.113. [PMID: 32069205 DOI: 10.7812/tpp/19.113] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Acute respiratory failure requiring mechanical ventilation is a leading cause of mortality in the intensive care unit. Although single peripheral blood oxygen saturation/fraction of inspired oxygen (SpO2/FiO2) ratios of hypoxemia have been evaluated to risk-stratify patients with acute respiratory distress syndrome, the utility of longitudinal SpO2/FiO2 ratios is unknown. OBJECTIVE To assess time-based SpO2/FiO2 ratios ≤ 150-SpO2/FiO2 time at risk (SF-TAR)-for predicting mortality in mechanically ventilated patients. METHODS Retrospective, observational cohort study of mechanically ventilated patients at 21 community and 2 academic hospitals. Association between the SF-TAR in the first 24 hours of ventilation and mortality was examined using multivariable logistic regression and compared with the worst recorded isolated partial pressure of arterial oxygen/fraction of inspired oxygen (P/F) ratio. RESULTS In 28,758 derivation cohort admissions, every 10% increase in SF-TAR was associated with a 24% increase in adjusted odds of hospital mortality (adjusted odds ratio = 1.24; 95% confidence interval [CI] = 1.23-1.26); a similar association was observed in validation cohorts. Discrimination for mortality modestly improved with SF-TAR (area under the receiver operating characteristic curve [AUROC] = 0.81; 95% CI = 0.81-0.82) vs the worst P/F ratio (AUROC = 0.78; 95% CI = 0.78-0.79) and worst SpO2/FiO2 ratio (AUROC = 0.79; 95% CI = 0.79-0.80). The SF-TAR in the first 6 hours offered comparable discrimination for hospital mortality (AUROC = 0.80; 95% CI = 0.79-0.80) to the 24-hour SF-TAR. CONCLUSION The SF-TAR can identify ventilated patients at increased risk of death, offering modest improvements compared with single SpO2/FiO2 and P/F ratios. This longitudinal, noninvasive, and broadly generalizable tool may have particular utility for early phenotyping and risk stratification using electronic health record data in ventilated patients.
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Affiliation(s)
- Jason Y Adams
- Division of Pulmonary, Critical Care, and Sleep Medicine, University of California, Davis, Sacramento
| | - Angela J Rogers
- Division of Pulmonary and Critical Care Medicine, Stanford University, CA
| | | | | | | | - Sandra L Taylor
- Department of Public Health Sciences, University of California, Davis, Sacramento
| | - Albert W Riedl
- Department of Public Health Sciences, University of California, Davis, Sacramento
| | | | | | - Vincent X Liu
- Division of Research, Kaiser Permanente, Oakland, CA
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10
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Bao G. Web Exclusive. Annals Graphic Medicine - Caring for Dying Patients: Visual Narratives From the Intensive Care Unit. Ann Intern Med 2019; 170:W34-W40. [PMID: 30596870 DOI: 10.7326/g18-0016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Ginny Bao
- California Pacific Medical Center, Internal Medicine Residency, San Francisco, California (G.B.)
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11
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Bindraban RS, Ten Berg MJ, Naaktgeboren CA, Kramer MHH, Van Solinge WW, Nanayakkara PWB. Reducing Test Utilization in Hospital Settings: A Narrative Review. Ann Lab Med 2018; 38:402-412. [PMID: 29797809 PMCID: PMC5973913 DOI: 10.3343/alm.2018.38.5.402] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/23/2018] [Accepted: 05/06/2018] [Indexed: 11/19/2022] Open
Abstract
Background Studies addressing the appropriateness of laboratory testing have revealed approximately 20% overutilization. We conducted a narrative review to (1) describe current interventions aimed at reducing unnecessary laboratory testing, specifically in hospital settings, and (2) provide estimates of their efficacy in reducing test order volume and improving patient-related clinical outcomes. Methods The PubMed, Embase, Scopus, Web of Science, and Canadian Agency for Drugs and Technologies in Health-Health Technology Assessment databases were searched for studies describing the effects of interventions aimed at reducing unnecessary laboratory tests. Data on test order volume and clinical outcomes were extracted by one reviewer, while uncertainties were discussed with two other reviewers. Because of the heterogeneity of interventions and outcomes, no meta-analysis was performed. Results Eighty-four studies were included. Interventions were categorized into educational, (computerized) provider order entry [(C)POE], audit and feedback, or other interventions. Nearly all studies reported a reduction in test order volume. Only 15 assessed sustainability up to two years. Patient-related clinical outcomes were reported in 45 studies, two of which found negative effects. Conclusions Interventions from all categories have the potential to reduce unnecessary laboratory testing, although long-term sustainability is questionable. Owing to the heterogeneity of the interventions studied, it is difficult to conclude which approach was most successful, and for which tests. Most studies had methodological limitations, such as the absence of a control arm. Therefore, well-designed, controlled trials using clearly described interventions and relevant clinical outcomes are needed.
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Affiliation(s)
- Renuka S Bindraban
- Departments of Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, The Netherlands.,Section Acute Medicine, Department of Internal Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - Maarten J Ten Berg
- Departments of Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Christiana A Naaktgeboren
- Departments of Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, The Netherlands.,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Mark H H Kramer
- Section Acute Medicine, Department of Internal Medicine, VU University Medical Center, Amsterdam, The Netherlands
| | - Wouter W Van Solinge
- Departments of Clinical Chemistry and Haematology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Prabath W B Nanayakkara
- Section Acute Medicine, Department of Internal Medicine, VU University Medical Center, Amsterdam, The Netherlands.
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12
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Zhou B, Zhai JF, Wu JB, Jin B, Zhang YY. Different ventilation modes combined with ambroxol in the treatment of respiratory distress syndrome in premature infants. Exp Ther Med 2017; 13:629-633. [PMID: 28352342 PMCID: PMC5347989 DOI: 10.3892/etm.2016.3978] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 12/30/2015] [Indexed: 11/11/2022] Open
Abstract
The aim of the present study was to compare the effectiveness of different modes of mechanical ventilation in combination with secretolytic therapy with ambroxol in premature infants with respiratory distress syndrome. Seventy-three premature infants with hyaline membrane disease (HMD) (stage III–IV), also known as respiratory distress syndrome, who were supported by mechanical ventilation in the neonatal intensive care unit (NICU) of Xuzhou Central Hospital, were involved in the present study, between January 2013 and February 2015. Forty cases were randomly selected and treated with high frequency oscillatory ventilation (HFOV), forming the HFOV group, whereas 33 cases were selected and treated with conventional mechanical ventilation (CMV), forming the CMV group. Patients in the two groups were administered ambroxol intravenously at a dosage rate of 30 mg/kg body weight at the beginning of the study. The present study involved monitoring the blood gas index as well as changes in the respiratory function index in the two groups. Additionally, the incidence of complications in the premature infants in the two groups was observed prior to and following the ventilation. Pulmonary arterial oxygen tension (PaO2), the PaO2/fraction of inspired oxygen (FiO2) ratio, the oxygenation index [OI = 100 × mean airway pressure (MAP) × FiO2/PaO2], as well as the arterial/alveolar oxygen partial pressure ratio (a/APO2) = PaO2/(713 × FiO2 partial pressure of carbon dioxide (PaCO2)/0.8) of the patients in the HFOV group after 1, 12 and 24 h of treatment were significantly improved as compared to the patients of the CMV group. However, there was no significant difference between patients in the two groups with regard to the number of mortalities, complications such as pneumothorax, bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP), intraventricular hemorrhage (IVH), periventricular leukomalacia (PVL), and the time of ventilation. In conclusion, combining HFOV with ambroxol secretolytic therapy is a more viable option, as the combined treatment resulted in significant improvements in arterial blood gas levels, oxygenation and the respiratory function of lungs in preterm infants.
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Affiliation(s)
- Bin Zhou
- Division of Pediatrics, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University; The Affiliated Xuzhou Center Hospital of Nanjing University of Chinese Medicine, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou, Jiangsu 221009, P.R. China
| | - Jing-Fang Zhai
- Division of Obstetrics, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University; The Affiliated Xuzhou Center Hospital of Nanjing University of Chinese Medicine, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou, Jiangsu 221009, P.R. China
| | - Jie-Bin Wu
- Division of Pediatrics, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University; The Affiliated Xuzhou Center Hospital of Nanjing University of Chinese Medicine, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou, Jiangsu 221009, P.R. China
| | - Bao Jin
- Division of Pediatrics, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University; The Affiliated Xuzhou Center Hospital of Nanjing University of Chinese Medicine, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou, Jiangsu 221009, P.R. China
| | - Yan-Yan Zhang
- Division of Pediatrics, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University; The Affiliated Xuzhou Center Hospital of Nanjing University of Chinese Medicine, Xuzhou Clinical School of Xuzhou Medical College, Xuzhou, Jiangsu 221009, P.R. China
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13
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Blum FE, McCurdy MT, Hall HA, Zilberstein J. Contemporary Bloodletting in Cardiac Surgical Patients. Ann Thorac Surg 2015; 100:380. [PMID: 26140797 DOI: 10.1016/j.athoracsur.2015.03.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 03/16/2015] [Accepted: 03/23/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Franziska E Blum
- Department of Internal Medicine, Weiss Memorial Hospital, Chicago, IL
| | - Michael T McCurdy
- Division of Pulmonary & Critical Care Medicine, University of Maryland School of Medicine, Baltimore, MD
| | - Heather A Hall
- Division of Vascular Surgery, Weiss Memorial Hospital, Chicago, IL
| | - Jeffrey Zilberstein
- Department of Medicine, Section of Pulmonary, Critical Care, Sleep, and Allergy, University of Illinois-Chicago, Chicago, IL.
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