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Campesi I, Franconi F, Serra PA. The Appropriateness of Medical Devices Is Strongly Influenced by Sex and Gender. Life (Basel) 2024; 14:234. [PMID: 38398743 PMCID: PMC10890141 DOI: 10.3390/life14020234] [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: 10/31/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
Until now, research has been performed mainly in men, with a low recruitment of women; consequentially, biological, physiological, and physio-pathological mechanisms are less understood in women. Obviously, without data obtained on women, it is impossible to apply the results of research appropriately to women. This issue also applies to medical devices (MDs), and numerous problems linked to scarce pre-market research and clinical trials on MDs were evidenced after their introduction to the market. Globally, some MDs are less efficient in women than in men and sometimes MDs are less safe for women than men, although recently there has been a small but significant decrease in the sex and gender gap. As an example, cardiac resynchronization defibrillators seem to produce more beneficial effects in women than in men. It is also important to remember that MDs can impact the health of healthcare providers and this could occur in a sex- and gender-dependent manner. Recently, MDs' complexity is rising, and to ensure their appropriate use they must have a sex-gender-sensitive approach. Unfortunately, the majority of physicians, healthcare providers, and developers of MDs still believe that the human population is only constituted by men. Therefore, to overcome the gender gap, a real collaboration between the inventors of MDs, health researchers, and health providers should be established to test MDs in female and male tissues, animals, and women.
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Affiliation(s)
- Ilaria Campesi
- Dipartimento di Scienze Biomediche, Università degli Studi di Sassari, 07100 Sassari, Italy
- Laboratorio Nazionale sulla Farmacologia e Medicina di Genere, Istituto Nazionale Biostrutture Biosistemi, 07100 Sassari, Italy;
| | - Flavia Franconi
- Laboratorio Nazionale sulla Farmacologia e Medicina di Genere, Istituto Nazionale Biostrutture Biosistemi, 07100 Sassari, Italy;
| | - Pier Andrea Serra
- Dipartimento di Medicina, Chirurgia e Farmacia, Università degli Studi di Sassari, 07100 Sassari, Italy;
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2
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Pisani L, Schultz MJ. The Significance of Sizes: Which Matters Most? Chest 2024; 165:233-235. [PMID: 38336431 DOI: 10.1016/j.chest.2023.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 11/01/2023] [Indexed: 02/12/2024] Open
Affiliation(s)
- Luigi Pisani
- Department of Precision-Regenerative Medicine and Jonic Area (DiMePRe-J), Section of Anesthesiology and Intensive Care Medicine, University of Bari "Aldo Moro", Bari, Italy; Nuffield Department of Medicine, Center for Tropical Medicine and Global Health, Oxford, England; Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand.
| | - Marcus J Schultz
- Nuffield Department of Medicine, Center for Tropical Medicine and Global Health, Oxford, England; Mahidol-Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand; Department of Intensive Care, Amsterdam University Medical Centers; Department of Anesthesia, General Intensive Care and Pain Management, Division of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, University of Vienna, Vienna, Austria
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3
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Modra LJ, Higgins AM, Pilcher DV, Bailey M, Bellomo R. Sex Differences in Vital Organ Support Provided to ICU Patients. Crit Care Med 2024; 52:1-10. [PMID: 37846932 PMCID: PMC10715697 DOI: 10.1097/ccm.0000000000006058] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
OBJECTIVES Critically ill women may receive less vital organ support than men but the mortality impact of this differential treatment remains unclear. We aimed to quantify sex differences in vital organ support provided to adult ICU patients and describe the relationship between sex, vital organ support, and mortality. DESIGN In this retrospective observational study, we examined the provision of invasive ventilation (primary outcome), noninvasive ventilation, vasoactive medication, renal replacement therapy, extracorporeal membrane oxygenation (ECMO), or any one of these five vital organ supports in women compared with men. We performed logistic regression investigating the association of sex with each vital organ support, adjusted for illness severity, diagnosis, preexisting treatment limitation, year, and hospital. We performed logistic regression for hospital mortality adjusted for the same variables, stratified by vital organ support (secondary outcome). SETTING AND PATIENTS ICU admissions in the Australia and New Zealand Intensive Care Society Adult Patient Database 2018-2021. This registry records admissions from 90% of ICUs in the two nations. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS We examined 699,535 ICU admissions (43.7% women) to 199 ICUs. After adjustment, women were less likely than men to receive invasive ventilation (odds ratio [OR], 0.64; 99% CI, 0.63-0.65) and each other organ support except ECMO. Women had lower adjusted hospital mortality overall (OR, 0.94; 99% CI, 0.91-0.97). Among patients who did not receive any organ support, women had significantly lower adjusted hospital mortality (OR, 0.82; 99% CI, 0.76-0.88); among patients who received any organ support women and men were equally likely to die (OR, 1.01; 99% CI, 0.97-1.04). CONCLUSIONS Women received significantly less vital organ support than men in ICUs in Australia and New Zealand. However, our findings suggest that women may not be harmed by this conservative approach to treatment.
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Affiliation(s)
- Lucy J Modra
- Department of Critical Care, University of Melbourne, Melbourne, VIC, Australia
- Intensive Care Unit, Austin Health, Melbourne, VIC, Australia
| | - Alisa M Higgins
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia
| | - David V Pilcher
- Department of Critical Care, University of Melbourne, Melbourne, VIC, Australia
- Intensive Care Unit, Austin Health, Melbourne, VIC, Australia
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia
- Intensive Care Unit, Alfred Health, Melbourne, VIC, Australia
- The Australian and New Zealand Intensive Care Society (ANZICS) Centre for Outcome and Resource Evaluation, Camberwell, VIC, Australia
- Department of Intensive Care Medicine, Royal Melbourne Hospital, Melbourne, VIC, Australia
| | - Michael Bailey
- Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia
| | - Rinaldo Bellomo
- Department of Intensive Care Medicine, Royal Melbourne Hospital, Melbourne, VIC, Australia
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4
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Blank JA, Armstrong-Hough M, Valley TS. Disparities among patients with respiratory failure. Curr Opin Crit Care 2023; 29:493-504. [PMID: 37641499 PMCID: PMC10599128 DOI: 10.1097/mcc.0000000000001079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
PURPOSE OF REVIEW Disparities are common within healthcare, and critical illness is no exception. This review summarizes recent literature on health disparities within respiratory failure, focusing on race, ethnicity, socioeconomic status, and sex. RECENT FINDINGS Current evidence indicates that Black patients have higher incidence of respiratory failure, while the relationships among race, ethnicity, and mortality remains unclear. There has been renewed interest in medical device bias, specifically pulse oximetry, for which data demonstrate patients with darker skin tones may be at risk for undetected hypoxemia and worse outcomes. Lower socioeconomic status is associated with higher mortality, and respiratory failure can potentiate socioeconomic inequities via illness-related financial toxicity. Literature on sex-based disparities is limited; however, evidence suggests males receive more invasive care, including mechanical ventilation. SUMMARY Most studies focused on disparities in incidence and mortality associated with respiratory failure, but few relied on granular clinical data of patients from diverse backgrounds. Future studies should evaluate processes of care for respiratory failure that may mechanistically contribute to disparities in order to develop interventions that improve outcomes.
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Affiliation(s)
| | - Mari Armstrong-Hough
- New York University School of Global Public Health, Department of Social & Behavioral Sciences, Department of Epidemiology
| | - Thomas S. Valley
- University of Michigan, Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine
- VA Center for Clinical Management Research, Ann Arbor, Michigan
- Institute for Healthcare Policy and Innovation, University of Michigan
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5
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Andrea L, Moskowitz A, Chen JT, Fein DG. Decreased Utilization of Low Tidal Volume Ventilation Outside of the Intensive Care Unit as Compared to Inside. J Intensive Care Med 2023; 38:949-956. [PMID: 37226439 DOI: 10.1177/08850666231175646] [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] [Indexed: 05/26/2023]
Abstract
Background: Investigations into the use of low tidal volume ventilation (LTVV) have been performed for patients in emergency departments (EDs) or intensive care units (ICUs). Practice differences between the ICU and non-ICU care areas have not been described. We hypothesized that the initial implementation of LTVV would be better inside ICUs than outside. Methods: This is a retrospective observational study of patients initiated on invasive mechanical ventilation (IMV) between January 1, 2016, and July 17, 2019. Initial recorded tidal volumes after intubation were used to compare the use of LTVV between care areas. Low tidal volume was considered 6.5 cc/kg of ideal body weight (IBW) or less. The primary outcome was the initiation of low tidal volume. Sensitivity analyses used a tidal volume of 8 cc/kg of IBW or less, and direct comparisons were performed between the ICU, ED, and wards. Results: There were 6392 initiations of IMV: 2217 (34.7%) in the ICU and 4175 (65.3%) outside. LTVV was more likely to be initiated in the ICU than outside (46.5% vs 34.2%; adjusted odds ratio [aOR] 0.62, 95% confidence interval [CI] 0.56-0.71, P < .01). The ICU also had more implementation when PaO2/FiO2 ratio was less than 300, (48.0% vs 34.6%; aOR 0.59, 95% CI 0.48-0.71, P < .01). When comparing individual locations, wards had lower odds of LTVV than the ICU (aOR 0.82, 95% CI 0.70-0.96, P = .02), the ED had lower odds than the ICU (aOR 0.55, 95% CI 0.48-0.63, P < .01), and the ED had lower odds than the wards (aOR 0.66, 95% CI 0.56-0.77, P < .01). Interpretation: Initial low tidal volumes were more likely to be initiated in the ICU than outside. This finding remained when examining only patients with a PaO2/FiO2 ratio less than 300. Care areas outside of the ICU do not employ LTVV as often as ICUs and are, therefore, a possible target for process improvement.
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Affiliation(s)
- Luke Andrea
- Department of Critical Care Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Ari Moskowitz
- Department of Critical Care Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Jen-Ting Chen
- Department of Critical Care Medicine, Montefiore Medical Center, Bronx, NY, USA
| | - Daniel G Fein
- Department of Critical Care Medicine, Montefiore Medical Center, Bronx, NY, USA
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6
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Mehta AB, Taylor JK, Day G, Lane TC, Douglas IS. Disparities in Adult Patient Selection for Extracorporeal Membrane Oxygenation in the United States: A Population-Level Study. Ann Am Thorac Soc 2023; 20:1166-1174. [PMID: 37021958 PMCID: PMC10405618 DOI: 10.1513/annalsats.202212-1029oc] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 04/05/2023] [Indexed: 04/07/2023] Open
Abstract
Rationale: Disparities in patient selection for advanced therapeutics in health care have been identified in multiple studies, but it is unclear if disparities exist in patient selection for extracorporeal membrane oxygenation (ECMO), a rapidly expanding critical care resource. Objectives: To determine if disparities exist in patient selection for ECMO based on sex, primary insurance, and median income of the patient's neighborhood. Methods: In a retrospective cohort study using the Nationwide Readmissions Database 2016-2019, we identified patients treated with mechanical ventilation (MV) and/or ECMO with billing codes. Patient sex, insurance, and income level for patients receiving ECMO were compared with the patients treated with MV only, and hierarchical logistic regression with the hospital as a random intercept was used to determine odds of receiving ECMO based on patient demographics. Results: We identified 2,170,752 MV hospitalizations with 18,725 cases of ECMO. Among patients treated with ECMO, 36.1% were female compared with 44.5% of patients treated with> MV only (adjusted odds ratio [aOR] for ECMO, 0.73; 95% confidence interval [CI], 0.70-0.75). Of patients treated with ECMO, 38.1% had private insurance compared with 17.4% of patients treated with MV only. Patients with Medicaid were less likely to receive ECMO than patients with private insurance (aOR, 0.55; 95% CI, 0.52-0.57). Patients treated with ECMO were more likely to live in the highest-income neighborhoods compared with patients treated with MV only (25.1% vs. 17.3%). Patients living in the lowest-income neighborhoods were less likely to receive ECMO than those living in the highest-income neighborhoods (aOR, 0.63; 95% CI, 0.60-0.67). Conclusions: Significant disparities exist in patient selection for ECMO. Female patients, patients with Medicaid, and patients living in the lowest-income neighborhoods are less likely to be treated with ECMO. Despite possible unmeasured confounding, these findings were robust to multiple sensitivity analyses. On the basis of previous work describing disparities in other areas of health care, we speculate that limited access in some neighborhoods, restrictive/biased interhospital transfer practices, differences in patient preferences, and implicit provider bias may contribute to the observed differences. Future studies with more granular data are needed to identify and modify drivers of observed disparities.
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Affiliation(s)
- Anuj B. Mehta
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Denver Health Hospital Association, Denver, Colorado; and
- Division of Pulmonary, Critical Care, and Sleep Medicine, Department of Medicine, National Jewish Health, Denver, Colorado
| | - Jennifer K. Taylor
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Gwenyth Day
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Trevor C. Lane
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
| | - Ivor S. Douglas
- Division of Pulmonary Sciences and Critical Care Medicine, Department of Medicine, University of Colorado School of Medicine, Aurora, Colorado
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Denver Health Hospital Association, Denver, Colorado; and
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7
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Matías Aguilera A, Alday Muñoz E, Muñoz de Nova JL, Planas Roca A. Ventilatory inequality in the operating room. Gender differences in intraoperative mechanical ventilation guidelines. REVISTA ESPANOLA DE ANESTESIOLOGIA Y REANIMACION 2023; 70:368-369. [PMID: 37271342 DOI: 10.1016/j.redare.2022.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 08/31/2022] [Indexed: 06/06/2023]
Affiliation(s)
| | - E Alday Muñoz
- Anestesiología y Reanimación, Hospital Universitario La Princesa, Madrid, Spain.
| | - J L Muñoz de Nova
- Cirugía General y del Aparato Digestivo, Hospital Universitario La Princesa, Madrid, Spain
| | - A Planas Roca
- Anestesiología y Reanimación, Hospital Universitario La Princesa, Madrid, Spain
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8
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Self M, Mun C, Goodrich A, Schmidt U. A NOVEL EQUATION SUCCESSFULLY CALCULATES TIDAL VOLUMES FOR LUNG PROTECTIVE VENTILATION. J Emerg Med 2023:S0736-4679(23)00233-0. [PMID: 37355422 DOI: 10.1016/j.jemermed.2023.04.007] [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: 12/28/2022] [Revised: 03/22/2023] [Accepted: 04/10/2023] [Indexed: 06/26/2023]
Abstract
BACKGROUND Early application of low-tidal-volume ventilation (LTVV) has been associated with improved outcomes in the emergency department (ED) and intensive care unit (ICU), but is not consistently applied. The perceived complexity of calculating an ideal body weight (IBW)-based tidal volume (Vt) may contribute to this disparity. We hypothesized that a simplified equation could successfully predict LTVV. OBJECTIVE To create a memorable, single-step, sex-independent equation to estimate LTVV based on height. METHODS We conducted a retrospective observational cohort study of patients who received mechanical ventilation (MV) at 2 EDs from January 2016 to June 2019. Data were abstracted by automatic query. Patients < 18 years old, < 60 inches in height, and with implausible or incomplete data were excluded. LTVV was defined as ≤ 8 mL/kg IBW. We created a formula predicting a 6-8-mL/kg IBW Vt. We applied this formula to a population of ICU patients in the same health care system who received MV from January 2017 to December 2019 using the same exclusion criteria. The outcome was whether the equation predicted a 6-8-mL/kg IBW Vt. RESULTS A total of 982 ED patients were included; 753 (76.7%) had an initial Vt < 8 mL/kg IBW. The equation Vt = 20*(Ht-60) + 300 was derived. A total of 3720 ICU patients were included. The Vt equation successfully predicted a Vt of 6-8 mL/kg IBW in 3720 (100%) of ICU patients. CONCLUSIONS A novel equation successfully predicted a 6-8-mL/kg IBW Vt in a cohort of patients with height ≥ 60 inches.
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Affiliation(s)
- Michael Self
- Department of Emergency Medicine; Department of Anesthesiology, Division of Critical Care Anesthesia, University of California, San Diego, San Diego, California
| | - Christie Mun
- Department of Anesthesiology, Division of Critical Care Anesthesia, University of California, San Diego, San Diego, California
| | - Andrew Goodrich
- Critical Care Medicine, Memorial Healthcare System, Hollywood, Florida
| | - Ulrich Schmidt
- Department of Anesthesiology, Division of Critical Care Anesthesia, University of California, San Diego, San Diego, California
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9
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Malnoske ML, Quill CM, Barwise AK, Pietropaoli AP. Disparities in Lung-Protective Ventilation in the United States. Cureus 2022; 14:e29834. [PMID: 36337793 PMCID: PMC9625078 DOI: 10.7759/cureus.29834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2022] [Indexed: 06/16/2023] Open
Abstract
Background The objective of our study was to determine whether disparities exist in the use of lung-protective ventilation for critically ill mechanically ventilated patients in the United States based on gender, race/ethnicity, or insurance status. Methods This was a secondary data analysis of a prospective multicenter cohort study conducted from 2010 to 2012. The outcome of interest was the proportion of patients receiving tidal volume > 8 mL/kg predicted body weight (PBW). Results There were 1,595 patients in our primary analysis (710 women, 885 men). Women were more likely to receive tidal volumes > 8 mL/kg PBW than men (odds ratio [OR] = 3.42, 95% confidence interval [CI] = 2.67-4.40), a finding largely but not completely explained by gender differences in height. The underinsured were significantly more likely to receive tidal volume > 8 mL/kg PBW than the insured in multivariable analysis (OR = 1.54, 95% CI = 1.16-2.04). The prescription of > 8 mL/kg PBW tidal volume did not differ by racial or ethnic categories. Conclusions In this prospective nationwide cohort of critically ill mechanically ventilated patients, women and the underinsured were less likely than their comparators to receive lung-protective ventilation, with no apparent differences based on race/ethnicity alone.
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Affiliation(s)
- Michelle L Malnoske
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, USA
| | - Caroline M Quill
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, USA
| | - Amelia K Barwise
- Division of Pulmonary and Critical Care Medicine, Mayo Clinic, Rochester, USA
| | - Anthony P Pietropaoli
- Division of Pulmonary and Critical Care Medicine, University of Rochester Medical Center, Rochester, USA
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10
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Hanley C, Giacomini C, Brennan A, McNicholas B, Laffey JG. Insights Regarding the Berlin Definition of ARDS from Prospective Observational Studies. Semin Respir Crit Care Med 2022; 43:379-389. [PMID: 35679873 DOI: 10.1055/s-0042-1744306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The definition of acute respiratory distress syndrome (ARDS), has evolved since it was first described in 1967 by Ashbaugh and Petty to the current "Berlin" definition of ARDS developed in 2012 by an expert panel, that provided clarification on the definition of "acute," and on the cardiac failure criteria. It expanded the definition to include patients receiving non-invasive ventilation, and removed the term "acute lung injury" and added a requirement of patients to be receiving a minimum 5 cmH2O expiratory pressure.Since 2012, a series of observational cohort studies have generated insights into the utility and robustness of this definition. This review will examine novel insights into the epidemiology of ARDS, failures in ARDS diagnosis, the role of lung imaging in ARDS, the novel ARDS cohort that is not invasively ventilated, lung compliance profiles in patients with ARDS, sex differences that exist in ARDS management and outcomes, the progression of ARDS following initial diagnosis, and the clinical profile and outcomes of confirmed versus resolved ARDS. Furthermore, we will discuss studies that challenge the utility of distinguishing ARDS from other causes of acute hypoxemic respiratory failure (AHRF) and identify issues that may need to be addressed in a revised definition.
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Affiliation(s)
- Ciara Hanley
- Department of Anaesthesia and Intensive Care medicine, Galway University Hospitals, Saolta University Hospital Group, Galway, Ireland
| | - Camilla Giacomini
- Department of Anaesthesia and Intensive Care medicine, Galway University Hospitals, Saolta University Hospital Group, Galway, Ireland
| | - Aoife Brennan
- Department of Anaesthesia and Intensive Care medicine, Galway University Hospitals, Saolta University Hospital Group, Galway, Ireland.,School of Medicine, National University of Ireland, Galway, Ireland
| | - Bairbre McNicholas
- Department of Anaesthesia and Intensive Care medicine, Galway University Hospitals, Saolta University Hospital Group, Galway, Ireland.,School of Medicine, National University of Ireland, Galway, Ireland
| | - John G Laffey
- Department of Anaesthesia and Intensive Care medicine, Galway University Hospitals, Saolta University Hospital Group, Galway, Ireland.,School of Medicine, National University of Ireland, Galway, Ireland.,Regenerative Medicine Institute, National University of Ireland, Galway, Ireland
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11
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Nijbroek SGLH, Hol L, Ivanov D, Schultz MJ, Paulus F, Neto AS. Low tidal volume ventilation is associated with mortality in COVID-19 patients-Insights from the PRoVENT-COVID study. J Crit Care 2022; 70:154047. [PMID: 35490503 PMCID: PMC9047696 DOI: 10.1016/j.jcrc.2022.154047] [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: 11/08/2021] [Revised: 03/28/2022] [Accepted: 04/17/2022] [Indexed: 12/02/2022]
Abstract
Purpose Low tidal volume ventilation (LTVV) is associated with mortality in patients with acute respiratory distress syndrome. We investigated the association of LTVV with mortality in COVID-19 patients. Methods Secondary analysis of a national observational study in COVID-19 patients in the first wave of the pandemic. We compared COVID-19 patients that received LTVV, defined as controlled ventilation with a median tidal volume ≤ 6 mL/kg predicted body weight over the first 4 calendar days of ventilation, with patients that did not receive LTVV. The primary endpoint was 28-day mortality. In addition, we identified factors associated with use of LTVV. Results Of 903 patients, 294 (32.5%) received LTVV. Disease severity scores and ARDS classification was not different between the two patient groups. The primary endpoint, 28-day mortality, was met in 68 out of 294 patients (23.1%) that received LTVV versus in 193 out of 609 patients (31.7%) that did not receive LTVV (P < 0.001). LTVV was independently associated with 28-day mortality (HR, 0.68 (0.45 to 0.95); P = 0.025). Age, height, the initial tidal volume and continuous muscle paralysis was independently associated with use of LTVV. Conclusions In this cohort of invasively ventilated COVID-19 patients, approximately a third of patients received LTVV. Use of LTVV was independently associated with reduced 28-day mortality. The initial tidal volume and continuous muscle paralysis were potentially modifiable factors associated with use of LTVV. These findings are important as they could help clinicians to recognize patients who are at risk of not receiving LTVV.
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Affiliation(s)
- Sunny G L H Nijbroek
- Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands.
| | - Liselotte Hol
- Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands
| | - Dimitri Ivanov
- Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands
| | - Marcus J Schultz
- Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands; Mahidol Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand; Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Frederique Paulus
- Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands; ACHIEVE, Centre of Applied Research, Amsterdam University of Applied Sciences, Faculty of Health, Amsterdam, the Netherlands
| | - Ary Serpa Neto
- Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands; Department of Critical Care Medicine, Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Monash University, Melbourne, Australia
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12
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Swart P, Nijbroek SGLH, Paulus F, Neto AS, Schultz MJ. Sex Differences in Use of Low Tidal Volume Ventilation in COVID-19-Insights From the PRoVENT-COVID Study. Front Med (Lausanne) 2022; 8:780005. [PMID: 35300177 PMCID: PMC8923734 DOI: 10.3389/fmed.2021.780005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 11/30/2021] [Indexed: 12/12/2022] Open
Abstract
The purpose of this study was to compare and understand differences in the use of low tidal volume ventilation (LTVV) between females and males with acute respiratory distress syndrome (ARDS) related to coronavirus disease 2019 (COVID-19). This is a post-hoc analysis of an observational study in invasively ventilated patients with ARDS related to COVID-19 in 22 ICUs in the Netherlands. The primary endpoint was the use of LTVV, defined as having received a median tidal volume (VT) ≤6 ml/kg predicted body weight (PBW) during controlled ventilation. A mediation analysis was used to investigate the impact of anthropometric factors, next to the impact of sex per se. The analysis included 934 patients, 251 females and 683 males. All the patients had ARDS, and there were no differences in ARDS severity between the sexes. On the first day of ventilation, females received ventilation with a higher median VT compared with males [6.8 (interquartile range (IQR) 6.0–7.6 vs. 6.3 (IQR 5.8–6.9) ml/kg PBW; p < 0.001]. Consequently, females received LTVV less often than males (23 vs. 34%; p = 0.003). The difference in the use of LTVV became smaller but persisted over the next days (27 vs. 36%; p = 0.046 at day 2 and 28 vs. 38%; p = 0.030 at day 3). The difference in the use LTVV was significantly mediated by sex per se [average direct effect of the female sex, 7.5% (95% CI, 1.7–13.3%); p = 0.011] and by differences in the body height [average causal mediation effect, −17.5% (−21.5 to −13.5%); p < 0.001], but not by the differences in actual body weight [average causal mediation effect, 0.2% (−0.8 to 1.2%); p = 0.715]. In conclusion, in this cohort of patients with ARDS related to COVID-19, females received LTVV less often than males in the first days of invasive ventilation. The difference in the use of LTVV was mainly driven by an anthropometric factor, namely, body height. Use of LTVV may improve by paying attention to correct titration of VT, which should be based on PBW, which is a function of body height.
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Affiliation(s)
- Pien Swart
- Department of Intensive Care, Amsterdam University Medical Center, Location 'Academic Medical Center', Amsterdam, Netherlands
| | - Sunny G L H Nijbroek
- Department of Intensive Care, Amsterdam University Medical Center, Location 'Academic Medical Center', Amsterdam, Netherlands.,Department of Anaesthesiology, Amsterdam University Medical Center, Location 'Academic Medical Center', Amsterdam, Netherlands
| | - Frederique Paulus
- Department of Intensive Care, Amsterdam University Medical Center, Location 'Academic Medical Center', Amsterdam, Netherlands
| | - Ary Serpa Neto
- Department of Intensive Care, Amsterdam University Medical Center, Location 'Academic Medical Center', Amsterdam, Netherlands.,Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, VIC, Australia.,Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Marcus J Schultz
- Department of Intensive Care, Amsterdam University Medical Center, Location 'Academic Medical Center', Amsterdam, Netherlands.,Mahidol Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok, Thailand.,Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom
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