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Rhodes A, Wilson C, Zelenkov D, Adams K, Poyant JO, Han X, Faugno A, Montalvo C. "The Psychiatric Domain of Post-Intensive Care Syndrome: A Review for the Intensivist". J Intensive Care Med 2024:8850666241275582. [PMID: 39169853 DOI: 10.1177/08850666241275582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
Post-intensive care syndrome (PICS) is a clinical syndrome characterized by new or worsening changes in mental health, cognition, or physical function that persist following critical illness. The psychiatric domain of PICS encompasses new or worsened psychiatric burdens following critical illness, including post-traumatic stress disorder (PTSD), depression, and anxiety. Many of the established predisposing and precipitating factors for the psychiatric domain of PICS are commonly found in the setting of critical illness, including mechanical ventilation (MV), exposure to sedating medications, and physical restraint. Importantly, previous psychiatric history is a strong risk factor for the development of the psychiatric domain of PICS and should be considered when screening patients to diagnose psychiatric impairment and interventions. Delirium has been associated with psychiatric symptoms following ICU admission, therefore prevention warrants careful consideration. Dexmedetomidine has been shown to have the lowest risk for development of delirium when compared to other sedatives and has been the only sedative studied in relation to the psychiatric domain of PICS. Nocturnal dexmedetomidine and intensive care unit (ICU) diaries have been associated with decreased psychiatric burden after ICU discharge. Studies evaluating the impact of other intra-ICU practices on the development of the psychiatric domain of PICS, including the ABCDEF bundle, depth of sedation, and daily spontaneous awakening trials, have been limited and inconclusive. The psychiatric domain of PICS is difficult to treat and may be less responsive to multidisciplinary post-discharge programs and targeted interventions than the cognitive and physical domains of PICS. Given the high morbidity associated with the psychiatric domain of PICS, intensivists should familiarize themselves with the risk factors and intra-ICU interventions that can mitigate this important and under-recognized condition.
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Affiliation(s)
- Allison Rhodes
- Tufts Medical Center, Boston, MA, USA
- Tufts University School of Medicine, Boston, MA
| | | | | | - Kathryne Adams
- Tufts Medical Center, Boston, MA, USA
- Tufts University School of Medicine, Boston, MA
| | | | - Xuan Han
- Tufts Medical Center, Boston, MA, USA
- Tufts University School of Medicine, Boston, MA
| | - Anthony Faugno
- Tufts Medical Center, Boston, MA, USA
- Tufts University School of Medicine, Boston, MA
| | - Cristina Montalvo
- Tufts Medical Center, Boston, MA, USA
- Tufts University School of Medicine, Boston, MA
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Curtisi J, Ellis-Wittenhagen J, Kokanovich T, Volk-Craft B. Compassionate Ventilator Release in Patients With Neuromuscular Disease: A Two-Case Comparison. J Pain Symptom Manage 2024:S0885-3924(24)00906-0. [PMID: 39117043 DOI: 10.1016/j.jpainsymman.2024.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 07/12/2024] [Accepted: 07/21/2024] [Indexed: 08/10/2024]
Abstract
Dyspnea, the subjective sensation of breathlessness, is a distressing and potentially traumatic symptom. Dyspnea associated with mechanical ventilation may contribute to intensive care unit (ICU) associated post-traumatic stress disorder and impaired quality of life. Dyspnea is both difficult to alleviate and a cause of significant distress to patients, their loved ones, and care providers People living with neuromuscular disease, such as amyotrophic lateral sclerosis (ALS) or myasthenia gravis (MG), often rely on a ventilator at late stages of illness due to complications of progressive respiratory muscle weakness and paralysis. When unable to wean from the ventilator, conversations turn towards goals of care and release from the ventilator for comfort and end of life (EOL). Patients with and without neuromuscular disease have high risk for dyspnea at EOL upon ventilator liberation. Although limited recommendations have been published specific to patients with ALS, no guidelines currently exist for the terminal liberation from mechanical ventilation in patients experiencing respiratory muscle insufficiency from a neuromuscular disease. Further research on this topic is needed, including creation of a protocol for ventilator release in patients with neuromuscular disease. The following case reports detail the dissimilar EOL experiences of two patients with different forms of neuromuscular disease.
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Affiliation(s)
- Jessica Curtisi
- Department of Palliative Care, Hospice of the Valley (J.C., B.V.C.), Phoenix, Arizona, USA.
| | | | - Timothy Kokanovich
- Department of Palliative Care, Mayo Clinic Arizona (J.E.W., T.K.), Phoenix, Arizona, USA
| | - Barbara Volk-Craft
- Department of Palliative Care, Hospice of the Valley (J.C., B.V.C.), Phoenix, Arizona, USA
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Ramsburg H, Fischer AG, MacKenzie Greenle M, Fehnel CR. Care of the Patient Nearing the End of Life in the Neurointensive Care Unit. Neurocrit Care 2024:10.1007/s12028-024-02064-5. [PMID: 39103717 DOI: 10.1007/s12028-024-02064-5] [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: 04/18/2024] [Accepted: 07/03/2024] [Indexed: 08/07/2024]
Abstract
BACKGROUND Neurologically critically ill patients present with unique disease trajectories, prognostic uncertainties, and challenges to end-of-life (EOL) care. Acute brain injuries place these patients at risk for underrecognized symptoms and unmet EOL management needs, which can negatively affect their quality of care and lead to complicated grief in surviving loved ones. To care for patients nearing the EOL in the neurointensive care unit, health care clinicians must consider neuroanatomic localization, barriers to symptom assessment and management, unique aspects of the dying process, and EOL management needs. AIM We aim to define current best practices, barriers, and future directions for EOL care of the neurologically critically ill patient.
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Affiliation(s)
- Hanna Ramsburg
- Villanova University M. Louise Fitzpatrick College of Nursing, Villanova, PA, USA.
| | | | | | - Corey R Fehnel
- Department of Neurology, Harvard Medical School, Boston, MA, USA
- Division of Neurocritical Care and Hospital Neurology, Department of Neurology, Beth Israel Deaconess Medical Center, Boston, MA, USA
- Hebrew SeniorLife Marcus Institute for Aging Research, Boston, MA, USA
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Doherty C, Feder S, Gillespie-Heyman S, Akgün KM. Easing Suffering for ICU Patients and Their Families: Evidence and Opportunities for Primary and Specialty Palliative Care in the ICU. J Intensive Care Med 2024; 39:715-732. [PMID: 37822226 DOI: 10.1177/08850666231204305] [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: 10/13/2023]
Abstract
Intensive care unit (ICU) admissions are often accompanied by many physical and existential pressure points that can be extraordinarily wearing on patients and their families and surrogate decision makers (SDMs). Multidisciplinary palliative support, including physicians, advanced practice nurses, nutritionists, chaplains and other team members, may alleviate many of these sources of potential suffering. However, the palliative needs of ICU patients undoubtedly exceed the bandwidth of current consultative specialty palliative medicine teams. Informed by standard-of-care palliative medicine domains, we review common ICU symptoms (pain, dyspnea and thirst) and their prevalence, sources and their treatment. We then identify palliative needs and impacts in the domains of communication, SDM support and transitions of care for patients and their families through their journey in the ICU, from discharge and recovery at home to chronic critical illness, post-ICU disability or death. Finally, we examine the evidence for strategies to incorporate specialty palliative medicine and palliative principles into ICU care for the improvement of patient- and family-centered care. While randomized controlled studies have failed to demonstrate measurable improvement in pre-determined outcomes for patient- and family-relevant outcomes, embracing the principles of palliative medicine and assuring their delivery in the ICU is likely to translate to overall improvement in humanistic, person-centered care that supports patients and their SDMs during and following critical illness.
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Affiliation(s)
- Christine Doherty
- Department of Internal Medicine New Haven, Yale New Haven Hospital, New Haven, CT, USA
- Yale School of Medicine, New Haven, CT, USA
| | - Shelli Feder
- Yale University School of Nursing, Orange, CT, USA
| | | | - Kathleen M Akgün
- Yale School of Medicine, New Haven, CT, USA
- Section of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, VA-Connecticut and Yale University School of Medicine, New Haven, CT, USA
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Deleris R, Bureau C, Lebbah S, Decavèle M, Dres M, Mayaux J, Similowski T, Dechartres A, Demoule A. Low dose of morphine to relieve dyspnea in acute respiratory failure: the OpiDys double-blind randomized controlled trial. Respir Res 2024; 25:280. [PMID: 39014448 PMCID: PMC11251226 DOI: 10.1186/s12931-024-02867-2] [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: 01/09/2024] [Accepted: 06/04/2024] [Indexed: 07/18/2024] Open
Abstract
BACKGROUND Morphine relieves dyspnea in various clinical circumstances. Whether or not this applies to patients admitted to intensive care units (ICUs) for acute respiratory failure (ARF) is unknown. We evaluated the efficacy and safety of low-dose morphine on dyspnea in patients admitted to the ICU for ARF. METHODS In this single-center, double-blind, phase 2, randomized, controlled trial, we assigned non-intubated adults admitted to the ICU for ARF with severe dyspnea, defined by a visual analog scale for dyspnea (dyspnea-VAS) from zero (no dyspnea) to 100 mm (worst imaginable dyspnea) ≥40 mm, to receive a low dose of Morphine Hydrochloride (intravenous titration followed by subcutaneous relay) or Placebo. All patients received standard therapy, including etiological treatment and non-invasive respiratory support. RESULTS Twenty-two patients were randomized, 11 in each group. The average dyspnea (median [interquartile range]) over 24 hours did not significantly differ between the two groups (40 [25 - 43] mm in the Morphine group vs. 40 [36 - 49] mm in the Placebo group, p=0.411). Dyspnea-VAS was lower in the Morphine group than in the Placebo group at the end of intravenous titration (30 [11 - 30] vs. 35 [30 - 44], p=0.044) and four hours later (18 [10 - 29] vs. 50 [30 - 60], p=0.043). The cumulative probability of intubation was higher in the Morphine group than in the Placebo group (p=0.046) CONCLUSION: In this phase 2 pilot trial, morphine did not improve 24-hour average dyspnea in adult patients with ARF, even though it had a statistically significant immediate effect. Of concern, Morphine use was associated with a higher intubation rate. TRIAL REGISTRATION The protocol was declared on the ClinicalTrial.gov database (no. NCT04358133) and was published in September 2022.
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Affiliation(s)
- Robin Deleris
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), F-75013, Paris, France
| | - Côme Bureau
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), F-75013, Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
| | - Saïd Lebbah
- Département Biostatistique Santé Publique et Information Médicale, Centre de Pharmacoépidémiologie (Cephepi), Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, CIC-1421, F75013, Paris, France
| | - Maxens Decavèle
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), F-75013, Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
| | - Martin Dres
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), F-75013, Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
| | - Julien Mayaux
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), F-75013, Paris, France
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, F-75013, Paris, France
| | - Agnès Dechartres
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, CIC-1421, F75013, Paris, France
| | - Alexandre Demoule
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), F-75013, Paris, France.
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France.
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Le Marec J, Hajage D, Decavèle M, Schmidt M, Laurent I, Ricard JD, Jaber S, Azoulay E, Fartoukh M, Hraiech S, Mercat A, Similowski T, Demoule A. High Airway Occlusion Pressure Is Associated with Dyspnea and Increased Mortality in Critically Ill Mechanically Ventilated Patients. Am J Respir Crit Care Med 2024; 210:201-210. [PMID: 38319128 DOI: 10.1164/rccm.202308-1358oc] [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] [Received: 08/04/2023] [Accepted: 02/05/2024] [Indexed: 02/07/2024] Open
Abstract
Rationale: Airway occlusion pressure at 100 ms (P0.1) reflects central respiratory drive. Objectives: We aimed to assess factors associated with P0.1 and whether an abnormally low or high P0.1 value is associated with higher mortality and longer duration of mechanical ventilation (MV). Methods: We performed a secondary analysis of a prospective cohort study conducted in 10 ICUs in France to evaluate dyspnea in communicative MV patients. In patients intubated for more than 24 hours, P0.1 was measured with dyspnea as soon as patients could communicate and the next day. Measurements and Main Results: Among 260 patients assessed after a median time of ventilation of 4 days, P0.1 was 1.9 (1-3.5) cm H2O at enrollment, 24% had P0.1 values >3.5 cm H2O, 37% had P0.1 values between 1.5 and 3.5 cm H2O, and 39% had P0.1 values <1.5 cm H2O. In multivariable linear regression, independent factors associated with P0.1 were the presence of dyspnea (P = 0.037), respiratory rate (P < 0.001), and PaO2 (P = 0.008). Ninety-day mortality was 33% in patients with P0.1 > 3.5 cm H2O versus 19% in those with P0.1 between 1.5 and 3.5 cm H2O and 17% in those with P0.1 < 1.5 cm H2O (P = 0.046). After adjustment for the main risk factors, P0.1 was associated with 90-day mortality (hazard ratio per 1 cm H2O, 1.19 [95% confidence interval, 1.04-1.37]; P = 0.011). P0.1 was also independently associated with a longer duration of MV (hazard ratio per 1 cm H2O, 1.10 [95% confidence interval, 1.02-1.19]; P = 0.016). Conclusions: In patients receiving invasive MV, abnormally high P0.1 values may suggest dyspnea and are associated with higher mortality and prolonged duration of MV.
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Affiliation(s)
- Julien Le Marec
- Assistance Publique-Hôpitaux de Paris, 26930, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), Paris, France
| | - David Hajage
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Assistance Publique-Hôpitaux de Paris, Hôpital Pitié Salpêtrière, Département de Santé Publique, Centre de Pharmacoépidémiologie (Cephepi), Unité de Recherche Clinique PSL-CFX, CIC-1901, Paris, France
| | - Maxens Decavèle
- Assistance Publique-Hôpitaux de Paris, 26930, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Sorbonne Université, GRC 30, Reanimation et Soins Intensifs du Patient en Insuffisance Respiratoire Aiguë, Assistance Publique-Hôpitaux de Paris, Hôpital de la Pitié Salpêtrière, Paris, France
| | - Matthieu Schmidt
- Sorbonne Université, GRC 30, Reanimation et Soins Intensifs du Patient en Insuffisance Respiratoire Aiguë, Assistance Publique-Hôpitaux de Paris, Hôpital de la Pitié Salpêtrière, Paris, France
- Service de Médecine Intensive-Réanimation, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris Sorbonne Université Hôpital Pitié-Salpêtrière, Paris, France
- Sorbonne Université, INSERM, Research Unit on Cardiovascular Diseases, Metabolism and Nutrition, ICAN, Paris, France
| | - Isaura Laurent
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Assistance Publique-Hôpitaux de Paris, Hôpital Pitié Salpêtrière, Département de Santé Publique, Centre de Pharmacoépidémiologie (Cephepi), Unité de Recherche Clinique PSL-CFX, CIC-1901, Paris, France
| | - Jean-Damien Ricard
- Assistance Publique-Hôpitaux de Paris, Hôpital Louis Mourier, DMU ESPRIT, Service de Médecine Intensive Réanimation, Colombes, France
- Université Paris Cité, UMR1137 IAME, INSERM, Paris, France
| | - Samir Jaber
- Department of Anesthesia and Intensive Care Unit, Regional University Hospital of Montpellier, St-Eloi Hospital, University of Montpellier, PhyMedExp, INSERM U1046, CNRS UMR 9214, Montpellier, France
| | - Elie Azoulay
- Service de Médecine Intensive et Réanimation, Hôpital Saint-Louis, Assistance Publique-Hôpitaux de Paris, and Université de Paris, Paris, France
| | - Muriel Fartoukh
- Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Service de Médecine Intensive Réanimation, Hôpital Tenon, Paris, France
- Sorbonne Université, UFR Médecine, Paris, France
- Groupe de Recherche Clinique CARMAS, Université Paris Est Créteil, Créteil, France
| | - Sami Hraiech
- Assistance Publique-Hôpitaux de Marseille, Hôpital Nord, Médecine Intensive Réanimation, Marseille, France
- Centre d'Etudes et de Recherches sur les Services de Santé et Qualité de Vie EA 3279, Marseille, France
| | - Alain Mercat
- Service de Réanimation Médicale et Médecine Hyperbare, Centre Hospitalier Régional Universitaire, Angers, France; and
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Assistance Publique-Hôpitaux de Paris, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris-Sorbonne Université, Site Pitié-Salpêtrière, Département R3S, Paris, France
| | - Alexandre Demoule
- Assistance Publique-Hôpitaux de Paris, 26930, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Sorbonne Université, GRC 30, Reanimation et Soins Intensifs du Patient en Insuffisance Respiratoire Aiguë, Assistance Publique-Hôpitaux de Paris, Hôpital de la Pitié Salpêtrière, Paris, France
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Pérez J, Telias I. Airway Occlusion Pressure and Dyspnea during Mechanical Ventilation: Giving Words to the Pleas of the Respiratory Centers. Am J Respir Crit Care Med 2024; 210:139-141. [PMID: 38484187 PMCID: PMC11273315 DOI: 10.1164/rccm.202402-0384ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/16/2024] Open
Affiliation(s)
- Joaquin Pérez
- Department of Physical Therapy and Rehabilitation Anchorena San Martín Clinic Buenos Aires, Argentina
- Department of Anesthesia, Critical Care and Emergency Maggiore Policlinico Hospital Milan, Italy
- Department of Emergency Medicine Carlos G. Durand Hospital Buenos Aires, Argentina
| | - Irene Telias
- Division of Respirology and Critical Care Medicine University Health Network and Sinai Health System Toronto, Ontario, Canada
- Department of Medicine University of Toronto Toronto, Ontario, Canada
- Li Ka Shing Knowledge Institute St. Michael's Hospital-Unity Health Toronto Toronto, Ontario, Canada
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Richardson BR, Decavèle M, Demoule A, Murtagh FEM, Johnson MJ. Breathlessness assessment, management and impact in the intensive care unit: a rapid review and narrative synthesis. Ann Intensive Care 2024; 14:107. [PMID: 38967813 PMCID: PMC11229436 DOI: 10.1186/s13613-024-01338-7] [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: 03/07/2024] [Accepted: 06/18/2024] [Indexed: 07/06/2024] Open
Abstract
BACKGROUND Adults in the intensive care unit (ICU) commonly experience distressing symptoms and other concerns such as pain, delirium, and breathlessness. Breathlessness management is not supported by any ICU guidelines, unlike other symptoms. AIM To review the literature relating to (i) prevalence, intensity, assessment, and management of breathlessness in critically ill adults in the ICU receiving invasive and non-invasive mechanical ventilation (NIV) and high-flow oxygen therapy, (HFOT), (ii) the impact of breathlessness on ICU patients with regard to engagement with rehabilitation. METHODS A rapid review and narrative synthesis using the Cochrane Methods Group Recommendations was conducted and reported in accordance with PRISMA. All study designs investigating breathlessness in adult ICU patients receiving either invasive mechanical ventilation (IMV), NIV or HFOT were eligible. PubMed, MEDLINE, The Cochrane Library and CINAHL databased were searched from June 2013 to June 2023. Studies were quality appraised. RESULTS 19 studies representing 2822 ICU patients were included (participants mean age 48 years to 71 years; proportion of males 43-100%). The weighted mean prevalence of breathlessness in ICU patients receiving IMV was 49% (range 34-66%). The proportion of patients receiving NIV self-reporting moderate to severe dyspnoea was 55% prior to initiation. Breathlessness assessment tools included visual analogue scale, (VAS), numerical rating scale, (NRS) and modified BORG scale, (mBORG). In patients receiving NIV the highest reported median (interquartile range [IQR]) VAS, NRS and mBORG scores were 6.2cm (0-10 cm), 5 (2-7) and 6 (2.3-7) respectively (moderate to severe breathlessness). In patients receiving either NIV or HFOT the highest reported median (IQR) VAS, NRS and mBORG scores were 3 cm (0-6 cm), 8 (5-10) and 4 (3-5) respectively. CONCLUSION Breathlessness in adults receiving IMV, NIV or HFOT in the ICU is prevalent and clinically important with median intensity ratings indicating the presence of moderate to severe symptoms.
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Affiliation(s)
- Ben R Richardson
- School of Health and Life Sciences, Teesside University, Tees Valley, Middlesbrough, TS1 3BX, UK
| | - Maxens Decavèle
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, 75005, Paris, France
- Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), 75013, Paris, France
| | - Alexandre Demoule
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, 75005, Paris, France
- Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), 75013, Paris, France
| | - Fliss E M Murtagh
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Cottingham Road, Hull, HU6 7RX, UK
| | - Miriam J Johnson
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Cottingham Road, Hull, HU6 7RX, UK.
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9
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Bureau C, Schmidt M, Chommeloux J, Rivals I, Similowski T, Hékimian G, Luyt CE, Niérat MC, Dangers L, Dres M, Combes A, Morélot-Panzini C, Demoule A. Increasing Sweep Gas Flow Reduces Respiratory Drive and Dyspnea in Nonintubated Venoarterial Extracorporeal Membrane Oxygenation Patients: A Pilot Study. Anesthesiology 2024; 141:87-99. [PMID: 38436930 DOI: 10.1097/aln.0000000000004962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
BACKGROUND Data on assessment and management of dyspnea in patients on venoarterial extracorporeal membrane oxygenation (ECMO) for cardiogenic shock are lacking. The hypothesis was that increasing sweep gas flow through the venoarterial extracorporeal membrane oxygenator may decrease dyspnea in nonintubated venoarterial ECMO patients exhibiting clinically significant dyspnea, with a parallel reduction in respiratory drive. METHODS Nonintubated, spontaneously breathing, supine patients on venoarterial ECMO for cardiogenic shock who presented with a dyspnea visual analog scale (VAS) score of greater than or equal to 40/100 mm were included. Sweep gas flow was increased up to +6 l/min by three steps of +2 l/min each. Dyspnea was assessed with the dyspnea-VAS and the Multidimensional Dyspnea Profile. The respiratory drive was assessed by the electromyographic activity of the alae nasi and parasternal muscles. RESULTS A total of 21 patients were included in the study. Upon inclusion, median dyspnea-VAS was 50 (interquartile range, 45 to 60) mm, and sweep gas flow was 1.0 l/min (0.5 to 2.0). An increase in sweep gas flow significantly decreased dyspnea-VAS (50 [45 to 60] at baseline vs. 20 [10 to 30] at 6 l/min; P < 0.001). The decrease in dyspnea was greater for the sensory component of dyspnea (-50% [-43 to -75]) than for the affective and emotional components (-17% [-0 to -25] and -12% [-0 to -17]; P < 0.001). An increase in sweep gas flow significantly decreased electromyographic activity of the alae nasi and parasternal muscles (-23% [-36 to -10] and -20 [-41 to -0]; P < 0.001). There was a significant correlation between the sweep gas flow and the dyspnea-VAS (r = -0.91; 95% CI, -0.94 to -0.87), between the respiratory drive and the sensory component of dyspnea (r = 0.29; 95% CI, 0.13 to 0.44) between the respiratory drive and the affective component of dyspnea (r = 0.29; 95% CI, 0.02 to 0.54) and between the sweep gas flow and the alae nasi and parasternal (r = -0.31; 95% CI, -0.44 to -0.22; and r = -0.25; 95% CI, -0.44 to -0.16). CONCLUSIONS In critically ill patients with venoarterial ECMO, an increase in sweep gas flow through the oxygenation membrane decreases dyspnea, possibly mediated by a decrease in respiratory drive. EDITOR’S PERSPECTIVE
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Affiliation(s)
- Côme Bureau
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche S1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière Hospital, Médecine Intensive-Réanimation Unit, Paris, France
| | - Matthieu Schmidt
- Sorbonne Université, RESPIRE, Institut National de la Santé et de la Recherche Médicale, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France; Médecine Intensive-Réanimation Unit, Cardiologie Institute, Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Juliette Chommeloux
- Sorbonne Université, RESPIRE, Institut National de la Santé et de la Recherche Médicale, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France; Médecine Intensive-Réanimation Unit, Cardiologie Institute, Assistance Publique-Hôpitaux de Paris Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - Isabelle Rivals
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Equipe de Statistique Appliquée, ESPCI Paris, Pitié Salpêtrière Research University, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Thomas Similowski
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Assistance Publique-Hôpitaux de Paris University Hospital Group, Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière, Paris, France
| | - Guillaume Hékimian
- Sorbonne Université, RESPIRE, Institut National de la Santé et de la Recherche Médicale, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France; Médecine Intensive-Réanimation Unit, Cardiologie Institute, Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Charles-Edouard Luyt
- Sorbonne Université, RESPIRE, Institut National de la Santé et de la Recherche Médicale, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France; Médecine Intensive-Réanimation Unit, Cardiologie Institute, Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière Hospital, Paris, France
| | - Marie-Cécile Niérat
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Laurence Dangers
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière, Médecine Intensive-Réanimation Unit, Paris, France
| | - Martin Dres
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Assistance Publique-Hôpitaux de Paris, Sorbonne Université, Pitié-Salpêtrière Hospital, Médecine Intensive-Réanimation Unit, F-75013, Paris, France
| | - Alain Combes
- Sorbonne Université, RESPIRE, Institut National de la Santé et de la Recherche Médicale, UMRS_1166-ICAN, Institute of Cardiometabolism and Nutrition, Paris, France; Médecine Intensive-Réanimation Unit, Institut de Cardiologie, Assistance Publique-Hôpitaux de Paris Sorbonne, Pitié-Salpêtrière Hospital, Paris, France
| | - Capucine Morélot-Panzini
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Assistance Publique-Hôpitaux de Paris Groupe Hospitalier Universitaire, Assistance Publique-Hôpitaux de Paris Sorbonne Université, Site Pitié-Salpêtrière, Service de Pneumologie, Paris, France
| | - Alexandre Demoule
- Sorbonne Université, Institut National de la Santé et de la Recherche Médicale, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France; Assistance Publique-Hôpitaux de Paris Sorbonne Université, Pitié-Salpêtrière Hospital, Médecine Intensive-Réanimation Unit, Paris, France
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10
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Navarra-Ventura G, Godoy-González M, Gomà G, Jodar M, Sarlabous L, Santos-Pulpón V, Xifra-Porxas A, de Haro C, Roca O, Blanch L, López-Aguilar J, Fernández-Gonzalo S. Occurrence, co-occurrence and persistence of symptoms of depression and post-traumatic stress disorder in survivors of COVID-19 critical illness. Eur J Psychotraumatol 2024; 15:2363654. [PMID: 38881386 PMCID: PMC11185090 DOI: 10.1080/20008066.2024.2363654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 05/22/2024] [Indexed: 06/18/2024] Open
Abstract
Background: Intensive care unit (ICU) admission and invasive mechanical ventilation (IMV) are associated with psychological distress and trauma. The COVID-19 pandemic brought with it a series of additional long-lasting stressful and traumatic experiences. However, little is known about comorbid depression and post-traumatic stress disorder (PTSD).Objective: To examine the occurrence, co-occurrence, and persistence of clinically significant symptoms of depression and PTSD, and their predictive factors, in COVID-19 critical illness survivors.Method: Single-centre prospective observational study in adult survivors of COVID-19 with ≥24 h of ICU admission. Patients were assessed one and 12 months after ICU discharge using the depression subscale of the Hospital Anxiety and Depression Scale and the Davidson Trauma Scale. Differences in isolated and comorbid symptoms of depression and PTSD between patients with and without IMV and predictors of the occurrence and persistence of symptoms of these mental disorders were analysed.Results: Eighty-nine patients (42 with IMV) completed the 1-month follow-up and 71 (34 with IMV) completed the 12-month follow-up. One month after discharge, 29.2% of patients had symptoms of depression and 36% had symptoms of PTSD; after one year, the respective figures were 32.4% and 31%. Coexistence of depressive and PTSD symptoms accounted for approximately half of all symptomatic cases. Isolated PTSD symptoms were more frequent in patients with IMV (p≤.014). The need for IMV was associated with the occurrence at one month (OR = 6.098, p = .005) and persistence at 12 months (OR = 3.271, p = .030) of symptoms of either of these two mental disorders.Conclusions: Comorbid depressive and PTSD symptoms were highly frequent in our cohort of COVID-19 critical illness survivors. The need for IMV predicted short-term occurrence and long-term persistence of symptoms of these mental disorders, especially PTSD symptoms. The specific role of dyspnea in the association between IMV and post-ICU mental disorders deserves further investigation.Trial registration: ClinicalTrials.gov identifier: NCT04422444.
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Affiliation(s)
- Guillem Navarra-Ventura
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Godoy-González
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, International Excellence Campus, Bellaterra, Spain
| | - Gemma Gomà
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Mercè Jodar
- Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, International Excellence Campus, Bellaterra, Spain
- Neurology Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - Leonardo Sarlabous
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Verónica Santos-Pulpón
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Alba Xifra-Porxas
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Candelaria de Haro
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Oriol Roca
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
| | - Lluís Blanch
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Josefina López-Aguilar
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Sol Fernández-Gonzalo
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d’Investigació i Innovació Parc Taulí (I3PT-CERCA), Universitat Autònoma de Barcelona, Sabadell, Spain
- Department of Clinical and Health Psychology, Universitat Autònoma de Barcelona, International Excellence Campus, Bellaterra, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
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11
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Demoule A, Baptiste A, Thille AW, Similowski T, Ragot S, Prat G, Mercat A, Girault C, Carteaux G, Boulain T, Perbet S, Decavèle M, Belin L, Frat JP. Dyspnea is severe and associated with a higher intubation rate in de novo acute hypoxemic respiratory failure. Crit Care 2024; 28:174. [PMID: 38783367 PMCID: PMC11118550 DOI: 10.1186/s13054-024-04903-5] [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] [Received: 01/16/2024] [Accepted: 04/05/2024] [Indexed: 05/25/2024] Open
Abstract
BACKGROUND Dyspnea is a key symptom of de novo acute hypoxemic respiratory failure. This study explores dyspnea and its association with intubation and mortality in this population. METHODS This was a secondary analysis of a multicenter, randomized, controlled trial. Dyspnea was quantified by a visual analog scale (dyspnea-VAS) from zero to 100 mm. Dyspnea was measured in 259 of the 310 patients included. Factors associated with intubation were assessed with a competing risks model taking into account ICU discharge. The Cox model was used to evaluate factors associated with 90-day mortality. RESULTS At baseline (randomization in the parent trial), median dyspnea-VAS was 46 (interquartile range, 16-65) mm and was ≥ 40 mm in 146 patients (56%). The intubation rate was 45%. Baseline variables independently associated with intubation were moderate (dyspnea-VAS 40-64 mm) and severe (dyspnea-VAS ≥ 65 mm) dyspnea at baseline (sHR 1.96 and 2.61, p = 0.023), systolic arterial pressure (sHR 2.56, p < 0.001), heart rate (sHR 1.94, p = 0.02) and PaO2/FiO2 (sHR 0.34, p = 0.028). 90-day mortality was 20%. The cumulative probability of survival was lower in patients with baseline dyspnea-VAS ≥ 40 mm (logrank test, p = 0.049). Variables independently associated with mortality were SAPS 2 ≥ 25 (p < 0.001), moderate-to-severe dyspnea at baseline (p = 0.073), PaO2/FiO2 (p = 0.118), and treatment arm (p = 0.046). CONCLUSIONS In patients admitted to the ICU for de novo acute hypoxemic respiratory failure, dyspnea is associated with a higher risk of intubation and with a higher mortality. TRIAL REGISTRATION clinicaltrials.gov Identifier # NCT01320384.
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Affiliation(s)
- Alexandre Demoule
- INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, 75005, Paris, France.
- Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), Hôpital Universitaire Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France.
| | - Amandine Baptiste
- Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Unité de Recherche Clinique, AP-HP, Paris, France
| | - Arnaud W Thille
- Médecine Intensive Réanimation, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
- Centre d'Investigation Clinique 1402 ALIVE, Université de Poitiers, Poitiers, France
| | - Thomas Similowski
- INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, 75005, Paris, France
- Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Département R3S, AP-HP, 75013, Paris, France
| | - Stephanie Ragot
- Centre d'Investigation Clinique 1402 ALIVE, Université de Poitiers, Poitiers, France
| | - Gwénael Prat
- Service de Médecine Intensive et Réanimation, CHU de Brest, Brest, France
| | - Alain Mercat
- Service de Réanimation médicale et Médecine Hyperbare, Centre Hospitalier Régional Universitaire, Angers, France
| | - Christophe Girault
- UNIROUEN, UR 3830, Medical Intensive Care Unit, Rouen University Hospital, Normandie University, Rouen, France
| | - Guillaume Carteaux
- Hôpitaux Universitaires Henri Mondor, Service de Médecine Intensive Réanimation, Université Paris Est Créteil, Groupe de Recherche Clinique CARMAS, AP-HP, Créteil, France
| | - Thierry Boulain
- Médecine Intensive Réanimation, Centre Hospitalier Universitaire d'Orléans, Orléans, France
| | - Sébastien Perbet
- Réanimation Médico-Chirurgicale, CHU de Clermont-Ferrand, Clermont-Ferrand, France
- GReD, UMR/CNRS 6293, INSERM U1103, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Maxens Decavèle
- INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, 75005, Paris, France
- Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Service de Médecine Intensive et Réanimation (Département R3S), Hôpital Universitaire Pitié-Salpêtrière, AP-HP, 47-83 Boulevard de L'Hôpital, 75651, Paris Cedex 13, France
| | - Lisa Belin
- Site Pitié-Salpêtrière, Département de Santé Publique, INSERM, Institut Pierre Louis d'Epidémiologie Et de Santé Publique, AP-HP, APHP-Sorbonne Université, Paris, France
| | - Jean-Pierre Frat
- Médecine Intensive Réanimation, Centre Hospitalier Universitaire de Poitiers, Poitiers, France
- Centre d'Investigation Clinique 1402 ALIVE, Université de Poitiers, Poitiers, France
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12
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Gutierrez G. A non-invasive method to monitor respiratory muscle effort during mechanical ventilation. J Clin Monit Comput 2024:10.1007/s10877-024-01164-z. [PMID: 38733504 DOI: 10.1007/s10877-024-01164-z] [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: 01/05/2024] [Accepted: 04/08/2024] [Indexed: 05/13/2024]
Abstract
PURPOSE This study introduces a method to non-invasively and automatically quantify respiratory muscle effort (Pmus) during mechanical ventilation (MV). The methodology hinges on numerically solving the respiratory system's equation of motion, utilizing measurements of airway pressure (Paw) and airflow (Faw). To evaluate the technique's effectiveness, Pmus was correlated with expected physiological responses. In volume-control (VC) mode, where tidal volume (VT) is pre-determined, Pmus is expected to be linked to Paw fluctuations. In contrast, during pressure-control (PC) mode, where Paw is held constant, Pmus should correlate with VT variations. METHODS The study utilized data from 250 patients on invasive MV. The data included detailed recordings of Paw and Faw, sampled at 31.25 Hz and saved in 131.1-second epochs, each covering 34 to 41 breaths. The algorithm identified 51,268 epochs containing breaths on either VC or PC mode exclusively. In these epochs, Pmus and its pressure-time product (PmusPTP) were computed and correlated with Paw's pressure-time product (PawPTP) and VT, respectively. RESULTS There was a strong correlation of PmusPTP with PawPTP in VC mode (R² = 0.91 [0.76, 0.96]; n = 17,648 epochs) and with VT in PC mode (R² = 0.88 [0.74, 0.94]; n = 33,620 epochs), confirming the hypothesis. As expected, negligible correlations were observed between PmusPTP and VT in VC mode (R² = 0.03) and between PmusPTP and PawPTP in PC mode (R² = 0.06). CONCLUSION The study supports the feasibility of assessing respiratory effort during MV non-invasively through airway signal analysis. Further research is warranted to validate this method and investigate its clinical applications.
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Affiliation(s)
- Guillermo Gutierrez
- Professor Emeritus Medicine, Anesthesiology and Engineering, The George Washington University, 700 New Hampshire Ave, NW Suite 510, Washington, DC, 20037, USA.
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13
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de Haro C, Santos-Pulpón V, Telías I, Xifra-Porxas A, Subirà C, Batlle M, Fernández R, Murias G, Albaiceta GM, Fernández-Gonzalo S, Godoy-González M, Gomà G, Nogales S, Roca O, Pham T, López-Aguilar J, Magrans R, Brochard L, Blanch L, Sarlabous L. Flow starvation during square-flow assisted ventilation detected by supervised deep learning techniques. Crit Care 2024; 28:75. [PMID: 38486268 PMCID: PMC10938655 DOI: 10.1186/s13054-024-04845-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/19/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND Flow starvation is a type of patient-ventilator asynchrony that occurs when gas delivery does not fully meet the patients' ventilatory demand due to an insufficient airflow and/or a high inspiratory effort, and it is usually identified by visual inspection of airway pressure waveform. Clinical diagnosis is cumbersome and prone to underdiagnosis, being an opportunity for artificial intelligence. Our objective is to develop a supervised artificial intelligence algorithm for identifying airway pressure deformation during square-flow assisted ventilation and patient-triggered breaths. METHODS Multicenter, observational study. Adult critically ill patients under mechanical ventilation > 24 h on square-flow assisted ventilation were included. As the reference, 5 intensive care experts classified airway pressure deformation severity. Convolutional neural network and recurrent neural network models were trained and evaluated using accuracy, precision, recall and F1 score. In a subgroup of patients with esophageal pressure measurement (ΔPes), we analyzed the association between the intensity of the inspiratory effort and the airway pressure deformation. RESULTS 6428 breaths from 28 patients were analyzed, 42% were classified as having normal-mild, 23% moderate, and 34% severe airway pressure deformation. The accuracy of recurrent neural network algorithm and convolutional neural network were 87.9% [87.6-88.3], and 86.8% [86.6-87.4], respectively. Double triggering appeared in 8.8% of breaths, always in the presence of severe airway pressure deformation. The subgroup analysis demonstrated that 74.4% of breaths classified as severe airway pressure deformation had a ΔPes > 10 cmH2O and 37.2% a ΔPes > 15 cmH2O. CONCLUSIONS Recurrent neural network model appears excellent to identify airway pressure deformation due to flow starvation. It could be used as a real-time, 24-h bedside monitoring tool to minimize unrecognized periods of inappropriate patient-ventilator interaction.
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Affiliation(s)
- Candelaria de Haro
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d'Investigació I Innovació Parc Taulí (I3PT-CERCA),, Carrer Parc Taulí, 1, 08208, Sabadell, Spain.
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain.
| | - Verónica Santos-Pulpón
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Sabadell, Spain
| | - Irene Telías
- Keenan Research Center for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, ON, Canada
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
- Division of Respirology, Department of Medicine, University Health Network and Sinai Health System, Toronto, ON, Canada
| | - Alba Xifra-Porxas
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Sabadell, Spain
| | - Carles Subirà
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Critial Care Department, Althaia Xarxa Assistencial Universtaria de Manresa, Manresa, Spain
- IRIS - Catalunya Central I Grup de Recerca de Malalt Crític, Manresa, Spain
| | - Montserrat Batlle
- Critial Care Department, Althaia Xarxa Assistencial Universtaria de Manresa, Manresa, Spain
- IRIS - Catalunya Central I Grup de Recerca de Malalt Crític, Manresa, Spain
| | - Rafael Fernández
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Critial Care Department, Althaia Xarxa Assistencial Universtaria de Manresa, Manresa, Spain
- IRIS - Catalunya Central I Grup de Recerca de Malalt Crític, Manresa, Spain
| | - Gastón Murias
- Critical Care Department, Hospital Británico, Buenos Aires, Argentina
| | - Guillermo M Albaiceta
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Unidad de Cuidados Intensivos Cardiológicos, Hospital Universitario Central de Asturias. Universidad de Oviedo, Oviedo, Spain
| | - Sol Fernández-Gonzalo
- Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Sabadell, Spain
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | | | - Gemma Gomà
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d'Investigació I Innovació Parc Taulí (I3PT-CERCA),, Carrer Parc Taulí, 1, 08208, Sabadell, Spain
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Sara Nogales
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d'Investigació I Innovació Parc Taulí (I3PT-CERCA),, Carrer Parc Taulí, 1, 08208, Sabadell, Spain
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Oriol Roca
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d'Investigació I Innovació Parc Taulí (I3PT-CERCA),, Carrer Parc Taulí, 1, 08208, Sabadell, Spain
- Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Spain
| | - Tai Pham
- Service de Médecine Intensive-Réanimation, Hôpital de Bicêtre, DMU CORREVE, FHU SEPSIS, Groupe de Recherche Clinique CARMAS, Université Paris-Saclay, AP-HP, Le Kremlin-Bicêtre, France
- Université Paris-Saclay, UVSQ, Univ. Paris-Sud, Inserm U1018, Equipe d'Epidémiologie Respiratoire Intégrative, Center de Recherche en Epidémiologie et Santé Des Populations, Villejuif, France
| | - Josefina López-Aguilar
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Sabadell, Spain
| | | | - Laurent Brochard
- Keenan Research Center for Biomedical Science, Li Ka Shing Knowledge Institute, Unity Health Toronto, Toronto, ON, Canada
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, ON, Canada
| | - Lluís Blanch
- Critical Care Department, Parc Taulí Hospital Universitari, Institut d'Investigació I Innovació Parc Taulí (I3PT-CERCA),, Carrer Parc Taulí, 1, 08208, Sabadell, Spain
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
| | - Leonardo Sarlabous
- Centro Investigación Biomédica en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III, Madrid, Spain
- Institut d'Investigació i Innovació Parc Taulí (I3PT-CERCA), Sabadell, Spain
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14
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Seubert ME, Goeijenbier M. Controlled Mechanical Ventilation in Critically Ill Patients and the Potential Role of Venous Bagging in Acute Kidney Injury. J Clin Med 2024; 13:1504. [PMID: 38592687 PMCID: PMC10934139 DOI: 10.3390/jcm13051504] [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: 01/18/2024] [Revised: 02/29/2024] [Accepted: 03/02/2024] [Indexed: 04/10/2024] Open
Abstract
A very low incidence of acute kidney injury (AKI) has been observed in COVID-19 patients purposefully treated with early pressure support ventilation (PSV) compared to those receiving mainly controlled ventilation. The prevention of subdiaphragmatic venous congestion through limited fluid intake and the lowering of intrathoracic pressure is a possible and attractive explanation for this observed phenomenon. Both venous congestion, or "venous bagging", and a positive fluid balance correlate with the occurrence of AKI. The impact of PSV on venous return, in addition to the effects of limiting intravenous fluids, may, at least in part, explain this even more clearly when there is no primary kidney disease or the presence of nephrotoxins. Optimizing the patient-ventilator interaction in PSV is challenging, in part because of the need for the ongoing titration of sedatives and opioids. The known benefits include improved ventilation/perfusion matching and reduced ventilator time. Furthermore, conservative fluid management positively influences cognitive and psychiatric morbidities in ICU patients and survivors. Here, it is hypothesized that cranial lymphatic congestion in relation to a more positive intrathoracic pressure, i.e., in patients predominantly treated with controlled mechanical ventilation (CMV), is a contributing risk factor for ICU delirium. No studies have addressed the question of how PSV can limit AKI, nor are there studies providing high-level evidence relating controlled mechanical ventilation to AKI. For this perspective article, we discuss studies in the literature demonstrating the effects of venous congestion leading to AKI. We aim to shed light on early PSV as a preventive measure, especially for the development of AKI and ICU delirium and emphasize the need for further research in this domain.
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Affiliation(s)
- Mark E. Seubert
- Department of Intensive Care, HagaZiekenhuis, 2725 NA Zoetermeer, The Netherlands
| | - Marco Goeijenbier
- Department of Intensive Care, Spaarne Gasthuis, 2035 RC Haarlem, The Netherlands;
- Department of Intensive Care, Erasmus MC, 3015 CN Rotterdam, The Netherlands
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15
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Lepage-Farrell A, Tabone L, Plante V, Kawaguchi A, Feder J, Al Omar S, Emeriaud G. Noninvasive Neurally Adjusted Ventilatory Assist in Infants With Bronchiolitis: Respiratory Outcomes in a Single-Center, Retrospective Cohort, 2016-2018. Pediatr Crit Care Med 2024; 25:201-211. [PMID: 38019615 DOI: 10.1097/pcc.0000000000003407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
OBJECTIVES To describe our experience of using noninvasive neurally adjusted ventilatory assist (NIV-NAVA) in infants with bronchiolitis, its association with the evolution of respiratory effort, and PICU outcomes. DESIGN Retrospective analysis of a prospectively curated, high-frequency electronic database. SETTING A PICU in a university-affiliated maternal-child health center in Canada. PATIENTS Patients younger than 2 years old who were admitted with a diagnosis of acute bronchiolitis and treated with NIV-NAVA from October 2016 to June 2018. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Patient characteristics, as well as respiratory and physiologic parameters, including electrical diaphragmatic activity (Edi), were extracted from the electronic database. Respiratory effort was estimated using the modified Wood Clinical Asthma Score (mWCAS) and the inspiratory Edi. A comparison in the respiratory effort data was made between the 2 hours before and 2 hours after starting NIV-NAVA. In the two seasons, 64 of 205 bronchiolitis patients were supported with NIV-NAVA. These 64 patients had a median (interquartile range [IQR]) age of 52 days (32-92 d), and there were 36 of 64 males. Treatment with NIV-NAVA was used after failure of first-tier noninvasive respiratory support; 25 of 64 patients (39%) had at least one medical comorbidity. NIV-NAVA initiation was associated with a moderate decrease in mWCAS from 3.0 (IQR, 2.5-3.5) to 2.5 (IQR, 2.0-3.0; p < 0.001). NIV-NAVA initiation was also associated with a statistically significant decrease in Edi ( p < 0.01). However, this decrease was only clinically relevant in infants with a 2-hour baseline Edi greater than 20 μV; here, the before and after Edi was 44 μV (IQR, 33-54 μV) compared with 27 μV (IQR, 21-36 μV), respectively ( p < 0.001). Overall, six of 64 patients (9%) required endotracheal intubation. CONCLUSIONS In this single-center retrospective cohort, in infants with bronchiolitis who were considered to have failed first-tier noninvasive respiratory support, the use of NIV-NAVA was associated with a rapid decrease in respiratory effort and a 9% intubation rate.
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Affiliation(s)
- Alex Lepage-Farrell
- Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Department of Pediatrics, London Children's Hospital, Western University, London, ON, Canada
| | - Laurence Tabone
- Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Pediatric Intensive Care and Pediatric Emergency Department, CHU Clocheville, Tours, France
| | - Virginie Plante
- Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Atsushi Kawaguchi
- Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- Department of Pediatrics, Pediatric Critical Care, St Marianna University, Kawasaki, Japan
| | - Joshua Feder
- Department of Pediatrics, Pediatric Intensive Care Unit, Montreal Children's Hospital, McGill University, Montreal, QC, Canada
| | - Sally Al Omar
- CHU Sainte Justine Research Center, Université de Montréal, Montreal, QC, Canada
| | - Guillaume Emeriaud
- Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada
- CHU Sainte Justine Research Center, Université de Montréal, Montreal, QC, Canada
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16
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Demoule A, Decavele M, Antonelli M, Camporota L, Abroug F, Adler D, Azoulay E, Basoglu M, Campbell M, Grasselli G, Herridge M, Johnson MJ, Naccache L, Navalesi P, Pelosi P, Schwartzstein R, Williams C, Windisch W, Heunks L, Similowski T. Dyspnoea in acutely ill mechanically ventilated adult patients: an ERS/ESICM statement. Eur Respir J 2024; 63:2300347. [PMID: 38387998 DOI: 10.1183/13993003.00347-2023] [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: 04/14/2023] [Accepted: 09/16/2023] [Indexed: 02/24/2024]
Abstract
This statement outlines a review of the literature and current practice concerning the prevalence, clinical significance, diagnosis and management of dyspnoea in critically ill, mechanically ventilated adult patients. It covers the definition, pathophysiology, epidemiology, short- and middle-term impact, detection and quantification, and prevention and treatment of dyspnoea. It represents a collaboration of the European Respiratory Society and the European Society of Intensive Care Medicine. Dyspnoea ranks among the most distressing experiences that human beings can endure. Approximately 40% of patients undergoing invasive mechanical ventilation in the intensive care unit (ICU) report dyspnoea, with an average intensity of 45 mm on a visual analogue scale from 0 to 100 mm. Although it shares many similarities with pain, dyspnoea can be far worse than pain in that it summons a primal fear response. As such, it merits universal and specific consideration. Dyspnoea must be identified, prevented and relieved in every patient. In the ICU, mechanically ventilated patients are at high risk of experiencing breathing difficulties because of their physiological status and, in some instances, because of mechanical ventilation itself. At the same time, mechanically ventilated patients have barriers to signalling their distress. Addressing this major clinical challenge mandates teaching and training, and involves ICU caregivers and patients. This is even more important because, as opposed to pain which has become a universal healthcare concern, very little attention has been paid to the identification and management of respiratory suffering in mechanically ventilated ICU patients.
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Affiliation(s)
- Alexandre Demoule
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive - Réanimation, Département R3S, F-75013 Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France
| | - Maxens Decavele
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive - Réanimation, Département R3S, F-75013 Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Luigi Camporota
- Department of Adult Critical Care, Health Centre for Human and Applied Physiological Sciences, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Fekri Abroug
- ICU and Research Lab (LR12SP15), Fattouma Bourguiba Teaching Hospital, Monastir, Tunisia
| | - Dan Adler
- Division of Pulmonary Diseases, Hôpital de la Tour, Geneva, Switzerland
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Elie Azoulay
- Medical Intensive Care Unit, APHP Hôpital Saint-Louis, Paris, France
| | - Metin Basoglu
- Istanbul Center for Behaviorial Sciences (DABATEM), Istanbul, Turkey
| | | | - Giacomo Grasselli
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Department of Anesthesia, Critical Care and Emergency, Milan, Italy
- University of Milan, Department of Pathophysiology and Transplantation, Milan, Italy
| | - Margaret Herridge
- Toronto General Research Institute, University Health Network, Toronto, ON, Canada
| | - Miriam J Johnson
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
| | - Lionel Naccache
- Département de Neurophysiologie, Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
- Institut du Cerveau et de la Moelle Épinière, ICM, PICNIC Lab, Paris, France
| | - Paolo Navalesi
- Department of Medicine, University of Padua, Padua, Italy
- Institute of Anesthesia and Intensive Care, Padua University Hospital, Padua, Italy
| | - Paolo Pelosi
- Anesthesia and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
| | - Richard Schwartzstein
- Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | | | - Wolfram Windisch
- Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln, Witten/Herdecke University, Cologne, Germany
| | - Leo Heunks
- Department of Intensive Care, Erasmus University Medical Center, Rotterdam, The Netherlands
- L. Heunks and T. Similowski contributed equally to the manuscript
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005 Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, F-75013 Paris, France
- L. Heunks and T. Similowski contributed equally to the manuscript
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17
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Shin J, Hammer M, Cooley ME, Cooper BA, Paul SM, Cartwright F, Kober KM, Conley YP, Levine JD, Miaskowski C. Common and distinct risk factors that influence more severe and distressing shortness of breath profiles in oncology outpatients. Cancer Med 2024; 13:e7013. [PMID: 38400684 PMCID: PMC10891479 DOI: 10.1002/cam4.7013] [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] [Received: 11/07/2023] [Revised: 01/05/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND Shortness of breath occurs in 10%-70% of oncology patients. Very little is known about interindividual variability in its severity and distress and associated risk factors. Using latent profile analyses (LPAs), purpose was to identify subgroups of patients with distinct severity and distress profiles for shortness of breath as single symptom dimensions. In addition, a joint LPA was done using patients' severity AND distress ratings. For each of the three LPAs, differences among the shortness of breath classes in demographic, clinical, symptom, stress, and resilience characteristics were evaluated. METHODS Patients completed ratings of severity and distress from shortness of breath a total of six times over two cycles of chemotherapy. All of the other measures were completed at enrollment (i.e., prior to the second or third cycle of chemotherapy). Separate LPAs were done using ratings of severity and distress, as well as a joint analysis using severity AND distress ratings. Differences among the latent classes were evaluated using parametric and nonparametric tests. RESULTS For severity, two classes were identified (Slight to Moderate [91.6%] and Moderate to Severe [8.4%]). For distress, two classes were identified (A Little Bit to Somewhat [83.9%] and Somewhat to Quite a Bit [16.1%]). For the joint LPA, two classes were identified (Lower Severity and Distress [79.9%] and Higher Severity and Distress [20.1%]). While distinct risk factors were associated with each of the LPAs, across the three LPAs, the common risk factors associated with membership in the worse class included: a past or current history of smoking, poorer functional status, and higher comorbidity burden. In addition, these patients had a higher symptom burden and higher levels of cancer-specific stress. CONCLUSIONS Clinicians can use the information provided in this study to identify high-risk patients and develop individualized interventions.
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Affiliation(s)
- Joosun Shin
- Dana‐Farber Cancer InstituteBostonMassachusettsUSA
| | | | | | - Bruce A. Cooper
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Steven M. Paul
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | | | - Kord M. Kober
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Yvette P. Conley
- School of NursingUniversity of PittsburghPittsburghPennsylvaniaUSA
| | - Jon D. Levine
- School of MedicineUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Christine Miaskowski
- School of NursingUniversity of CaliforniaSan FranciscoCaliforniaUSA
- School of MedicineUniversity of CaliforniaSan FranciscoCaliforniaUSA
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18
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Demoule A, Decavele M, Antonelli M, Camporota L, Abroug F, Adler D, Azoulay E, Basoglu M, Campbell M, Grasselli G, Herridge M, Johnson MJ, Naccache L, Navalesi P, Pelosi P, Schwartzstein R, Williams C, Windisch W, Heunks L, Similowski T. Dyspnoea in acutely ill mechanically ventilated adult patients: an ERS/ESICM statement. Intensive Care Med 2024; 50:159-180. [PMID: 38388984 DOI: 10.1007/s00134-023-07246-x] [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: 04/14/2023] [Accepted: 09/16/2023] [Indexed: 02/24/2024]
Abstract
This statement outlines a review of the literature and current practice concerning the prevalence, clinical significance, diagnosis and management of dyspnoea in critically ill, mechanically ventilated adult patients. It covers the definition, pathophysiology, epidemiology, short- and middle-term impact, detection and quantification, and prevention and treatment of dyspnoea. It represents a collaboration of the European Respiratory Society (ERS) and the European Society of Intensive Care Medicine (ESICM). Dyspnoea ranks among the most distressing experiences that human beings can endure. Approximately 40% of patients undergoing invasive mechanical ventilation in the intensive care unit (ICU) report dyspnoea, with an average intensity of 45 mm on a visual analogue scale from 0 to 100 mm. Although it shares many similarities with pain, dyspnoea can be far worse than pain in that it summons a primal fear response. As such, it merits universal and specific consideration. Dyspnoea must be identified, prevented and relieved in every patient. In the ICU, mechanically ventilated patients are at high risk of experiencing breathing difficulties because of their physiological status and, in some instances, because of mechanical ventilation itself. At the same time, mechanically ventilated patients have barriers to signalling their distress. Addressing this major clinical challenge mandates teaching and training, and involves ICU caregivers and patients. This is even more important because, as opposed to pain which has become a universal healthcare concern, very little attention has been paid to the identification and management of respiratory suffering in mechanically ventilated ICU patients.
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Affiliation(s)
- Alexandre Demoule
- Service de Médecine Intensive-Réanimation, Département R3S, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, 75013, Paris, France.
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, 75005, Paris, France.
| | - Maxens Decavele
- Service de Médecine Intensive-Réanimation, Département R3S, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, 75013, Paris, France
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, 75005, Paris, France
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Luigi Camporota
- Department of Adult Critical Care, Health Centre for Human and Applied Physiological Sciences, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - Fekri Abroug
- ICU and Research Lab (LR12SP15), Fattouma Bourguiba Teaching Hospital, Monastir, Tunisia
| | - Dan Adler
- Division of Pulmonary Diseases, Hôpital de la Tour, Geneva, Switzerland
- Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Elie Azoulay
- Medical Intensive Care Unit, APHP Hôpital Saint-Louis, Paris, France
| | - Metin Basoglu
- Istanbul Center for Behavioral Sciences (DABATEM), Istanbul, Turkey
| | | | - Giacomo Grasselli
- Department of Anesthesia, Critical Care and Emergency, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Margaret Herridge
- Toronto General Research Institute, University Health Network, Toronto, ON, Canada
| | - Miriam J Johnson
- Wolfson Palliative Care Research Centre, Hull York Medical School, University of Hull, Hull, UK
| | - Lionel Naccache
- Département de Neurophysiologie, Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, Paris, France
- Institut du Cerveau et de la Moelle Épinière, ICM, PICNIC Lab, Paris, France
| | - Paolo Navalesi
- Department of Medicine, University of Padua, Padua, Italy
- Institute of Anesthesia and Intensive Care, Padua University Hospital, Padua, Italy
| | - Paolo Pelosi
- Anesthesia and Critical Care, San Martino Policlinico Hospital, IRCCS for Oncology and Neurosciences, Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy
| | - Richard Schwartzstein
- Division of Pulmonary, Critical Care and Sleep Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | | | - Wolfram Windisch
- Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Köln, Witten/Herdecke University, Cologne, Germany
| | - Leo Heunks
- Department of Intensive Care, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, 75005, Paris, France
- Département R3S, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Site Pitié-Salpêtrière, 75013, Paris, France
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Sher Y, Desai N, Sole J, D'souza MP. Dyspnea and Dyspnea-Associated Anxiety in the ICU Patient Population: A Narrative Review for CL Psychiatrists. J Acad Consult Liaison Psychiatry 2024; 65:54-65. [PMID: 37952697 DOI: 10.1016/j.jaclp.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 10/31/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
BACKGROUND Consultation-liaison psychiatrists frequently address dyspnea in intensive care unit (ICU) patients. Dyspnea is common in this patient population, but is frequently misunderstood and underappreciated in noncommunicative ICU patients. OBJECTIVE This paper provides an updated review on dyspnea specifically in the ICU population, including its pathophysiology and management, pharmacological and nonpharmacological, aimed at consultation-liaison psychiatrists consulting in ICU. METHODS A literature review was conducted with PubMed, querying published articles for topics associated with dyspnea and dyspnea-associated anxiety in ICU patient populations. When literature in ICU populations was limited, information was deduced from dyspnea and anxiety management from non-ICU populations. Articles discussing the definition of dyspnea, mechanistic pathways, screening tools, and pharmacologic and nonpharmacologic management were included. RESULTS A reference guide was created to help consultation-liaison psychiatrists and intensivists in the screening and treatment of dyspnea and dyspnea-associated anxiety in critically ill patients. CONCLUSIONS Dyspnea is frequently associated with anxiety, prolonged days on mechanical ventilation, and worse quality of life after discharge. It can also increase the risk of posttraumatic stress disorder post-ICU discharge. However, it is not routinely screened for, identified, or addressed in the ICU. This manuscript provides an updated review on dyspnea and dyspnea-associated anxietyin the ICU population, including its pathophysiology and management, and offers a useful reference for consultation-liaison psychiatrists to provide treatment recommendations.
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Affiliation(s)
- Yelizaveta Sher
- Division of Medical Psychiatry, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine.
| | - Nikita Desai
- Division of Critical Care Medicine, Department of Medicine, Stanford University School of Medicine
| | - Jon Sole
- Division of Medical Psychiatry, Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine
| | - Melissa Patricia D'souza
- Division of Critical Care Medicine, Department of Medicine, Stanford University School of Medicine
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20
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Bureau C, Niérat MC, Decavèle M, Rivals I, Dangers L, Beurton A, Virolle S, Deleris R, Delemazure J, Mayaux J, Morélot-Panzini C, Dres M, Similowski T, Demoule A. Sensory interventions to relieve dyspnoea in critically ill mechanically ventilated patients. Eur Respir J 2024; 63:2202215. [PMID: 37678956 DOI: 10.1183/13993003.02215-2022] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 08/17/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND In critically ill patients receiving mechanical ventilation, dyspnoea is frequent, severe and associated with an increased risk of neuropsychological sequelae. We evaluated the efficacy of sensory interventions targeting the brain rather than the respiratory system to relieve dyspnoea in mechanically ventilated patients. METHODS Patients receiving mechanical ventilation for ≥48 h and reporting dyspnoea (unidimensional dyspnoea visual analogue scale (Dyspnoea-VAS)) first underwent increased pressure support and then, in random order, auditory stimulation (relaxing music versus pink noise) and air flux stimulation (facial versus lower limb). Treatment responses were assessed using Dyspnoea-VAS, the Multidimensional Dyspnea Profile and measures of the neural drive to breathe (airway occlusion pressure (P 0.1) and electromyography of inspiratory muscles). RESULTS We included 46 patients (tracheotomy or intubation n=37; noninvasive ventilation n=9). Increasing pressure support decreased Dyspnoea-VAS by median 40 mm (p<0.001). Exposure to music decreased Dyspnoea-VAS compared with exposure to pink noise by median 40 mm (p<0.001). Exposure to facial air flux decreased Dyspnoea-VAS compared with limb air flux by median 30 mm (p<0.001). Increasing pressure support, but not music exposure and facial air flux, reduced P 0.1 by median 3.3 cmH2O (p<0.001). CONCLUSIONS In mechanically ventilated patients, sensory interventions can modulate the processing of respiratory signals by the brain irrespective of the intensity of the neural drive to breathe. It should therefore be possible to alleviate dyspnoea without resorting to pharmacological interventions or having to infringe the constraints of mechanical ventilation lung protection strategies by increasing ventilatory support.
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Affiliation(s)
- Côme Bureau
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Marie-Cécile Niérat
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Maxens Decavèle
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Isabelle Rivals
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Equipe de Statistique Appliquée, ESPCI Paris, PSL Research University, UMRS 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Laurence Dangers
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Alexandra Beurton
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Sara Virolle
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Robin Deleris
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Julie Delemazure
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Julien Mayaux
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Capucine Morélot-Panzini
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Pneumologie (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Martin Dres
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Département R3S, AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Alexandre Demoule
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire AP-HP-Sorbonne Université, site Pitié-Salpêtrière, Paris, France
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21
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Bianquis C, Rolland-Debord C, Rivals I, Similowski T, Morélot-Panzini C. Dyspnoea relief as an inherent benefit of high flow nasal cannula therapy: A laboratory randomized trial in healthy humans. Respirology 2024; 29:46-55. [PMID: 37656056 DOI: 10.1111/resp.14580] [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: 04/24/2023] [Accepted: 08/14/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND AND OBJECTIVE Persistent dyspnoea is a public health issue for which the therapeutic arsenal is limited. This study tested high-flow nasal cannula therapy (HFNT) as a means to alleviate experimental dyspnoea. METHODS Thirty-two healthy subjects underwent an experimental dyspnoea induced by thoracoabdominal elastic loading. HFNT was administered with alternately FiO2 of 100% (HFNT100) or 21% (HFNT21). The sensory (S-VAS) and affective (A-VAS) components of dyspnoea, transcutaneous CO2 pressure (PtcCO2 ), pulse-oximetry oxygen saturation (SpO2 ), heart rate, respiratory rate and skin galvanometry were monitored continuously. Three experimental sessions of 8 min were conducted: the first session consisted in familiarization with the experimental dyspnoea and the next two sessions tested the effects of HFNT100 and HFNT21 alternatively in a randomized order. RESULTS HFNT21 and HFNT100 significantly reduced dyspnoea, respectively of ∆A-VAS = 0.80 cm [-0.02-1.5]; p = 0.007 and ∆A-VAS = 1.00 cm [0.08-1.75]; p < 0.0001; ∆S-VAS = 0.70 cm [-0.15-1.98]), p < 0.0001 and ∆S-VAS = 0.70 cm [0.08-1.95]), p = 0.0002) with no significant difference between HFNT21 and HFNT100. HFNT did not significantly alter the respiratory rate or the heart rate, reduced PtcCO2 only on room air and GSR under both experimental conditions. CONCLUSION HFNT was associated with a statistically significant reduction in the intensity of the sensory and affective components of dyspnoea, independent of oxygen addition. This relief of laboratory dyspnoea could result from a reduction of afferent-reafferent mismatch.
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Affiliation(s)
- Clara Bianquis
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service des Pathologies du Sommeil (Département "R3S"), AP-HP. Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - Camille Rolland-Debord
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Pneumologie, CHU Gabriel Montpied, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Isabelle Rivals
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Equipe de Statistique Appliquée, ESPCI Paris, PSL Research University, Paris, France
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Département "R3S", AP-HP. Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - Capucine Morélot-Panzini
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- Service de Pneumologie (Département "R3S"), AP-HP. Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
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22
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Saltnes-Lillegård C, Rustøen T, Beitland S, Puntillo K, Hagen M, Lerdal A, Hofsø K. Self-reported symptoms experienced by intensive care unit patients: a prospective observational multicenter study. Intensive Care Med 2023; 49:1370-1382. [PMID: 37812229 PMCID: PMC10622338 DOI: 10.1007/s00134-023-07219-0] [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] [Received: 05/30/2023] [Accepted: 08/30/2023] [Indexed: 10/10/2023]
Abstract
PURPOSE The purpose of this study is to describe the prevalence, intensity and distress of five symptoms in intensive care unit (ICU) patients and to investigate possible predictive factors associated with symptom intensity. METHODS This is a prospective cohort study of ICU patients. A symptom questionnaire (i.e., Patient Symptom Survey) was used to describe the prevalence, intensity and distress of pain, thirst, anxiousness, tiredness, and shortness of breath over seven ICU days. Associations between symptom intensity and possible predictive factors were assessed using the general estimating equation (GEE) model. RESULTS Out of 603 eligible patients, 353 (Sample 2) were included in the present study. On the first ICU day, 195 patients (Sample 1) reported thirst as the most prevalent symptom (66%), with the highest mean intensity score (6.13, 95% confidence interval (CI) [5.7-6.56]). Thirst was the most prevalent (64%) and most intense (mean score 6.05, 95%CI [5.81-6.3]) symptom during seven days in the ICU. Anxiousness was the most distressful (mean score 5.24, 95%CI [4.32-6.15]) symptom on the first day and during seven days (mean score 5.46, 95%CI [4.95-5.98]). During seven days, analgesic administration and sepsis diagnosis were associated with increased thirst intensity. Older age and being mechanically ventilated were associated with decreased pain intensity, and analgesic administration was associated with increased pain intensity. Family visits and female gender were associated with increased intensity of anxiousness and shortness of breath, respectively. CONCLUSIONS Self-reporting ICU patients experienced a high and consistent symptom burden across seven days. Certain variables were associated with the degree of symptom intensity, but further research is required to better understand these associations.
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Affiliation(s)
- Christin Saltnes-Lillegård
- Department of Postoperative and Intensive Care Nursing, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway.
- Department of Public Health Science, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway.
| | - Tone Rustøen
- Department of Public Health Science, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
- Department of Research and Development, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Sigrid Beitland
- Specialised Health Care Services, Quality and Clinical Pathways, Norwegian Directorate of Health, Oslo, Norway
| | - Kathleen Puntillo
- Department of Physiological Nursing, School of Nursing, University of California San Francisco, San Francisco, CA, USA
| | - Milada Hagen
- Department of Research and Development, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
- Department of Public Health, Oslo Metropolitan University, Oslo, Norway
| | - Anners Lerdal
- Department of Interdisciplinary Health Sciences, Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
- Research Department, Lovisenberg Diaconal Hospital, Oslo, Norway
| | - Kristin Hofsø
- Department of Postoperative and Intensive Care Nursing, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
- Department of Research and Development, Division of Emergencies and Critical Care, Oslo University Hospital, Oslo, Norway
- Lovisenberg Diaconal University College, Oslo, Norway
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23
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Sato T, Taito S, Nakashima Y, Sakai K, Kako J. Safety and Feasibility of Fan Therapy for Dyspnea: A Scoping Review. Cureus 2023; 15:e43668. [PMID: 37608903 PMCID: PMC10441821 DOI: 10.7759/cureus.43668] [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: 08/17/2023] [Indexed: 08/24/2023] Open
Abstract
Fan therapy is a non-pharmacological approach useful in terminally ill patients that relieves dyspnea by directing a fan to blow air on one side of the patient's face. To date, there has been no systematic review of fan therapy for critically ill patients in the intensive care unit. This scoping review aimed to provide a comprehensive overview of fan therapy studies published to date, clarify the therapeutic intervention methods of fan therapy, evaluate its safety according to existing literature, and explore its potential use in critically ill patients. A scoping review was conducted using the Joanna Briggs Institute methodology. This scoping review follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension of the scoping reviews statement. All published studies conducted on patients who received fan therapy regardless of age, disease, setting, phase, country, or follow-up duration were included. The data sources included Medical Literature Analysis and Retrieval System Online, Embase, Cochrane Central Register of Controlled Trials, and Cumulative Index to Nursing and Allied Literature databases. Of the 685 studies obtained, 15 were included, comprising patients with terminal cancer and chronic lung diseases. The most common intervention was a single five-minute intervention for dyspnea at rest. The studies on patients receiving oxygen therapy did not report adverse events or worsening of blood pressure, pulse rate, respiratory rate, or SpO2 levels. However, there are no studies in the literature on the use of fan therapy for critically ill patients. Nevertheless, previous studies suggest that fan therapy is safe.
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Affiliation(s)
- Tomoo Sato
- Acute Care Nursing Division, Kobe City College of Nursing, Kobe, JPN
| | - Shunsuke Taito
- Division of Rehabilitation, Hiroshima University Hospital, Hiroshima, JPN
- Department of Systematic Reviewers, Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, JPN
| | - Yuki Nakashima
- Division of Rehabilitation, Hiroshima University Hospital, Hiroshima, JPN
| | - Kotomi Sakai
- Comprehensive Unit for Health Economic Evidence Review and Decision Support (CHEERS) Research Organization of Science and Technology, Ritsumeikan University, Kyoto, JPN
- Department of Systematic Reviewers, Scientific Research Works Peer Support Group (SRWS-PSG), Osaka, JPN
| | - Jun Kako
- Department of Nursing, Mie University, Mie, JPN
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24
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Banzett R, Georgopoulos D. Dyspnea in the ICU: It Is Difficult to See What Patients Feel. Am J Respir Crit Care Med 2023; 208:6-7. [PMID: 37159946 PMCID: PMC10870842 DOI: 10.1164/rccm.202304-0677ed] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023] Open
Affiliation(s)
- Robert Banzett
- Department of Medicine Harvard Medical School Boston, Massachusetts and Division of Pulmonary and Critical Care Medicine Beth Israel Deaconess Medical Center Boston, Massachusetts
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25
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Decavèle M, Bureau C, Campion S, Nierat MC, Rivals I, Wattiez N, Faure M, Mayaux J, Morawiec E, Raux M, Similowski T, Demoule A. Interventions Relieving Dyspnea in Intubated Patients Show Responsiveness of the Mechanical Ventilation-Respiratory Distress Observation Scale. Am J Respir Crit Care Med 2023; 208:39-48. [PMID: 36973007 DOI: 10.1164/rccm.202301-0188oc] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/27/2023] [Indexed: 03/29/2023] Open
Abstract
Rationale: Breathing difficulties are highly stressful. In critically ill patients, they are associated with an increased risk of posttraumatic manifestations. Dyspnea, the corresponding symptom, cannot be directly assessed in noncommunicative patients. This difficulty can be circumvented using observation scales such as the mechanical ventilation-respiratory distress observation scale (MV-RDOS). Objective: To investigate the performance and responsiveness of the MV-RDOS to infer dyspnea in noncommunicative intubated patients. Methods: Communicative and noncommunicative patients exhibiting breathing difficulties under mechanical ventilation were prospectively included and assessed using a dyspnea visual analog scale, MV-RDOS, EMG activity of alae nasi and parasternal intercostals, and EEG signatures of respiratory-related cortical activation (preinspiratory potentials). Inspiratory-muscle EMG and preinspiratory cortical activities are surrogates of dyspnea. Assessments were conducted at baseline, after adjustment of ventilator settings, and, in some cases, after morphine administration. Measurements and Main Results: Fifty patients (age, 67 [(interquartile interval [IQR]), 61-76] yr; Simplified Acute Physiology Score II, 52 [IQR, 35-62]) were included, 25 of whom were noncommunicative. Relief occurred in 25 (50%) patients after ventilator adjustments and in 21 additional patients after morphine administration. In noncommunicative patients, MV-RDOS score decreased from 5.5 (IQR, 4.2-6.6) at baseline to 4.2 (IQR, 2.1-4.7; P < 0.001) after ventilator adjustments and 2.5 (IQR, 2.1-4.2; P = 0.024) after morphine administration. MV-RDOS and alae nasi/parasternal EMG activities were positively correlated (ρ = 0.41 and 0.37, respectively). MV-RDOS scores were higher in patients with EEG preinspiratory potentials (4.9 [IQR, 4.2-6.3] vs. 4.0 [IQR, 2.1-4.9]; P = 0.002). Conclusions: The MV-RDOS seems able to detect and monitor respiratory symptoms reasonably well in noncommunicative intubated patients. Clinical trial registered with www.clinicaltrials.gov (NCT02801838).
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Affiliation(s)
- Maxens Decavèle
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S) and
| | - Côme Bureau
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S) and
| | - Sébastien Campion
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Département d'Anesthésie Réanimation, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris Sorbonne Université, site Pitié-Salpêtrière, Paris, France; and
| | - Marie-Cécile Nierat
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
| | - Isabelle Rivals
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Equipe de Statistique Appliquée, Ecole Supérieure de Physique et de Chimie Industrielles Paris, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Nicolas Wattiez
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
| | - Morgane Faure
- Service de Médecine Intensive et Réanimation (Département R3S) and
| | - Julien Mayaux
- Service de Médecine Intensive et Réanimation (Département R3S) and
| | - Elise Morawiec
- Service de Médecine Intensive et Réanimation (Département R3S) and
| | - Mathieu Raux
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Département d'Anesthésie Réanimation, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris Sorbonne Université, site Pitié-Salpêtrière, Paris, France; and
| | - Thomas Similowski
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Département d'Anesthésie Réanimation, Groupe Hospitalier Universitaire Assistance Publique-Hôpitaux de Paris Sorbonne Université, site Pitié-Salpêtrière, Paris, France; and
| | - Alexandre Demoule
- Institut National de la Santé et de la Recherche Médicale, Unité Mixte de Recherche en Santé 1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Sorbonne Université, Paris, France
- Service de Médecine Intensive et Réanimation (Département R3S) and
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26
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Eikermann M, Needham DM, Devlin JW. Multimodal, patient-centred symptom control: a strategy to replace sedation in the ICU. THE LANCET. RESPIRATORY MEDICINE 2023:S2213-2600(23)00141-8. [PMID: 37187192 DOI: 10.1016/s2213-2600(23)00141-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 05/17/2023]
Affiliation(s)
- Matthias Eikermann
- Department of Anesthesiology, Montefiore Medical Center and Albert Einstein College of Medicine, New York, NY 10467, USA; Klinik fuer Anästhesiologie und Intensivmedizin, Universitaet Duisburg-Essen, Essen, Germany.
| | - Dale M Needham
- Division of Pulmonary and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA; Department of Physical Medicine and Rehabilitation, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - John W Devlin
- School of Pharmacy, Northeastern University, Boston, MA, USA; Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, MA, USA
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27
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Performance of Noninvasive Airway Occlusion Maneuvers to Assess Lung Stress and Diaphragm Effort in Mechanically Ventilated Critically Ill Patients. Anesthesiology 2023; 138:274-288. [PMID: 36520507 DOI: 10.1097/aln.0000000000004467] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Monitoring and controlling lung stress and diaphragm effort has been hypothesized to limit lung injury and diaphragm injury. The occluded inspiratory airway pressure (Pocc) and the airway occlusion pressure at 100 ms (P0.1) have been used as noninvasive methods to assess lung stress and respiratory muscle effort, but comparative performance of these measures and their correlation to diaphragm effort is unknown. The authors hypothesized that Pocc and P0.1 correlate with diaphragm effort and lung stress and would have strong discriminative performance in identifying extremes of lung stress and diaphragm effort. METHODS Change in transdiaphragmatic pressure and transpulmonary pressure was obtained with double-balloon nasogastric catheters in critically ill patients (n = 38). Pocc and P0.1 were measured every 1 to 3 h. Correlations between Pocc and P0.1 with change in transdiaphragmatic pressure and transpulmonary pressure were computed from patients from the first cohort. Accuracy of Pocc and P0.1 to identify patients with extremes of lung stress (change in transpulmonary pressure > 20 cm H2O) and diaphragm effort (change in transdiaphragmatic pressure < 3 cm H2O and >12 cm H2O) in the preceding hour was assessed with area under receiver operating characteristic curves. Cutoffs were validated in patients from the second cohort (n = 13). RESULTS Pocc and P0.1 correlate with change in transpulmonary pressure (R2 = 0.62 and 0.51, respectively) and change in transdiaphragmatic pressure (R2 = 0.53 and 0.22, respectively). Area under receiver operating characteristic curves to detect high lung stress is 0.90 (0.86 to 0.94) for Pocc and 0.88 (0.84 to 0.92) for P0.1. Area under receiver operating characteristic curves to detect low diaphragm effort is 0.97 (0.87 to 1.00) for Pocc and 0.93 (0.81 to 0.99) for P0.1. Area under receiver operating characteristic curves to detect high diaphragm effort is 0.86 (0.81 to 0.91) for Pocc and 0.73 (0.66 to 0.79) for P0.1. Performance was similar in the external dataset. CONCLUSIONS Pocc and P0.1 correlate with lung stress and diaphragm effort in the preceding hour. Diagnostic performance of Pocc and P0.1 to detect extremes in these parameters is reasonable to excellent. Pocc is more accurate in detecting high diaphragm effort. EDITOR’S PERSPECTIVE
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28
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Bissett B. Dyspnoea in COVID-19 recovery beyond the intensive care unit: the potential impact of inspiratory muscle weakness. ERJ Open Res 2023; 9:00521-2022. [PMID: 36687360 PMCID: PMC9841315 DOI: 10.1183/23120541.00521-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 01/18/2023] Open
Abstract
Emerging evidence confirms that dyspnoea and inspiratory muscle weakness persist for up to 6 months following mechanical ventilation with #COVID19 pneumonia. Screening for inspiratory muscle weakness should be prioritised, as it may be treatable. https://bit.ly/3CBQXO2.
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Affiliation(s)
- Bernie Bissett
- Faculty of Health, University of Canberra, and University of Canberra Hospital, Canberra, Australia,Corresponding author: Bernie Bissett ()
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29
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Decavèle M, Serresse L, Gay F, Nion N, Lavault S, Freund Y, Niérat MC, Steichen O, Demoule A, Morélot-Panzini C, Similowski T. ' Involve me and I learn': an experiential teaching approach to improve dyspnea awareness in medical residents. MEDICAL EDUCATION ONLINE 2022; 27:2133588. [PMID: 36218180 PMCID: PMC9559048 DOI: 10.1080/10872981.2022.2133588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Dyspnea is a frightening and debilitating experience. It attracts less attention than pain ('dyspnea invisibility'), possibly because of its non-universal nature. We tested the impact of self-induced experimental dyspnea on medical residents. MATERIALS AND METHODS During a teaching session following the principles of experiential learning, emergency medicine residents were taught about dyspnea theoretically, observed experimental dyspnea in their teacher, and personally experienced self-induced dyspnea. The corresponding psychophysiological reactions were described. Immediate and 1-year evaluations were conducted to assess course satisfaction (overall 0-20 grade) and the effect on the understanding of what dyspnea represents for patients. RESULTS Overall, 55 emergency medicine residents participated in the study (26 men, median age 26 years). They were moderately satisfied with previous dyspnea teaching (6 [5-7] on a 0-10 numerical rating scale [NRS]) and expressed a desire for an improvement in the teaching (8 [7-9]). Immediately after the course they reported improved understanding of patients' experience (7 [6-8]), which persisted at 1 year (8 [7-9], 28 respondents). Overall course grade was 17/20 [15-18], and there were significant correlations with experimental dyspnea ratings (intensity: r = 0.318 [0.001-0.576], p = 0.043; unpleasantness: r = 0.492 [0.208-0.699], p = 0.001). In multivariate analysis, the only factor independently associated with the overall course grade was 'experiential understanding' (the experimental dyspnea-related improvement in the understanding of dyspneic patients' experience). A separate similar experiment conducted in 50 respiratory medicine residents yielded identical results. CONCLUSIONS This study suggests that, in advanced medical residents, the personal discovery of dyspnea can have a positive impact on the understanding of what dyspnea represents for patients. This could help fight dyspnea invisibility.
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Affiliation(s)
- Maxens Decavèle
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive, Réanimation, Département R3S, Paris, France
| | - Laure Serresse
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Unité Mobile de Soins Palliatifs, Paris, France
| | - Frédérick Gay
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Laboratoire de parasitologie-mycologie, Paris, France
| | - Nathalie Nion
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, Paris, France
| | - Sophie Lavault
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, Paris, France
| | - Yonathan Freund
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service d’accueil des urgences, Paris, France
- Sorbonne Université, INSERM, UMRS 1166, IHU ICAN, Paris, France
| | - Marie-Cécile Niérat
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
| | - Olivier Steichen
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Tenon, Service de médecine interne, Paris, France
- Sorbonne Université, INSERM, UMRS 1142 LIMICS, Paris, France
| | - Alexandre Demoule
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Médecine Intensive, Réanimation, Département R3S, Paris, France
| | - Capucine Morélot-Panzini
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Service de Pneumologie, Département R3S, Paris, France
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, Paris, France
- AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, Paris, France
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30
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Demoule A, Deleris R, Bureau C, Lebbah S, Decavèle M, Dres M, Similowski T, Dechartres A. Low dose of morphine to relieve dyspnea in acute respiratory failure (OpiDys): protocol for a double-blind randomized controlled study. Trials 2022; 23:828. [PMID: 36175968 PMCID: PMC9523987 DOI: 10.1186/s13063-022-06754-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 09/15/2022] [Indexed: 09/02/2024] Open
Abstract
Background Dyspnea is common and severe in intensive care unit (ICU) patients managed for acute respiratory failure. Dyspnea appears to be associated with impaired prognosis and neuropsychological sequels. Pain and dyspnea share many similarities and previous studies have shown the benefit of morphine on dyspnea in patients with end-stage onco-hematological disease and severe heart or respiratory disease. In these populations, morphine administration was safe. Here, we hypothesize that low-dose opioids may help to reduce dyspnea in patients admitted to the ICU for acute respiratory failure. The primary objective of the trial is to determine whether the administration of low-dose titrated opioids, compared to placebo, in patients admitted to the ICU for acute respiratory failure with severe dyspnea decreases the mean 24-h intensity of dyspnea score. Methods In this single-center double-blind randomized controlled trial with 2 parallel arms, we plan to include 22 patients (aged 18–75 years) on spontaneous ventilation with either non-invasive ventilation, high flow oxygen therapy or standard oxygen therapy admitted to the ICU for acute respiratory failure with severe dyspnea. They will be assigned after randomization with a 1:1 allocation ratio to receive in experimental arm administration of low-dose titrated morphine hydrochloride for 24 h consisting in an intravenous titration relayed subcutaneously according to a predefined protocol, or a placebo (0.9% NaCl) administered according to the same protocol in the control arm. The primary endpoint is the mean 24-h dyspnea score assessed by a visual analog scale of dyspnea. Discussion To our knowledge, this study is the first to evaluate the benefit of opioids on dyspnea in ICU patients admitted for acute respiratory failure. Trial registration ClinicalTrials.govNCT04358133. Registered on 24 April 2020.
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Affiliation(s)
- Alexandre Demoule
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, F-75013, Paris, France. .,Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France.
| | - Robin Deleris
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, F-75013, Paris, France
| | - Côme Bureau
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, F-75013, Paris, France.,Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
| | - Said Lebbah
- Département de Santé Publique, Unité de Recherche Clinique Pitié-Sapêtrière-Charles Foix, APHP.Sorbonne Université, site Pitié-Salpêtrière, Paris, France
| | - Maxens Decavèle
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, F-75013, Paris, France.,Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
| | - Martin Dres
- Service de Médecine Intensive et Réanimation (Département R3S), AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, F-75013, Paris, France.,Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France
| | - Thomas Similowski
- Sorbonne Université, INSERM, UMRS1158 Neurophysiologie Respiratoire Expérimentale et Clinique, F-75005, Paris, France.,AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université, site Pitié-Salpêtrière, Département R3S, F-75013, Paris, France
| | - Agnes Dechartres
- Département de Santé Publique, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, APHP.Sorbonne Université, Hôpital Pitié Salpêtrière, F75013, Paris, France
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Decavèle M, Rozenberg E, Niérat MC, Mayaux J, Morawiec E, Morélot-Panzini C, Similowski T, Demoule A, Dres M. Respiratory distress observation scales to predict weaning outcome. Crit Care 2022; 26:162. [PMID: 35668459 PMCID: PMC9169318 DOI: 10.1186/s13054-022-04028-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 05/19/2022] [Indexed: 11/23/2022] Open
Abstract
Background Whether dyspnea is present before starting a spontaneous breathing trial (SBT) and whether it may affect the outcome of the SBT is unknown. Mechanical Ventilation—Respiratory Distress Observation Scale (MV-RDOS) has been proposed as a reliable surrogate of dyspnea in non-communicative intubated patients. In the present study, we sought (1) to describe the evolution of the MV-RDOS during a SBT and (2) to investigate whether MV-RDOS can predict the outcome of the SBT. Methods Prospective, single-center study in a twenty-two bed ICU in a tertiary center. Patients intubated since more 48 h who had failed a first SBT were eligible if they meet classical readiness to wean criteria. The MV-RDOS was assessed before, at 2-min, 15-min and 30-min (end) of the SBT. The presence of clinically important dyspnea was inferred by a MV-RDOS value ≥ 2.6. Results Fifty-eight patients (age 63 [51–70], SAPS II 66 [51–76]; med [IQR]) were included. Thirty-three (57%) patients failed the SBT, whose 18 (55%) failed before 15-min. Twenty-five (43%) patients successfully passed the SBT. A MV-RDOS ≥ 2.6 was present in ten (17%) patients before to start the SBT. All these ten patients subsequently failed the SBT. A MV-RDOS ≥ 2.6 at 2-min predicted a SBT failure with a 51% sensibility and a 88% specificity (AUC 0.741 95% confidence interval [CI] 0.616–0.866, p = 0.002). Best cut-off value at 2-min was 4.3 and predicted SBT failure with a 27% sensibility and a 96% specificity. Conclusion Despite patients met classical readiness to wean criteria, respiratory distress assessed with the MV-RDOS was frequent at the beginning of SBT. Measuring MV-RDOS before to initiate a SBT could avoid undue procedure and reduce patient’s exposure to unnecessary mechanical ventilation weaning failure and distress. Supplementary Information The online version contains supplementary material available at 10.1186/s13054-022-04028-7.
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Schwartzstein RM, Campbell ML. Dyspnea and Mechanical Ventilation: The Emperor Has No Clothes. Am J Respir Crit Care Med 2022; 205:864-865. [PMID: 35134318 PMCID: PMC9838635 DOI: 10.1164/rccm.202201-0078ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Affiliation(s)
- Richard M. Schwartzstein
- Division of Pulmonary, Critical Care and Sleep MedicineBeth Israel Deaconess Medical CenterBoston, Massachusetts
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The physiological underpinnings of life-saving respiratory support. Intensive Care Med 2022; 48:1274-1286. [PMID: 35690953 PMCID: PMC9188674 DOI: 10.1007/s00134-022-06749-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 05/16/2022] [Indexed: 02/04/2023]
Abstract
Treatment of respiratory failure has improved dramatically since the polio epidemic in the 1950s with the use of invasive techniques for respiratory support: mechanical ventilation and extracorporeal respiratory support. However, respiratory support is only a supportive therapy, designed to "buy time" while the disease causing respiratory failure abates. It ensures viable gas exchange and prevents cardiorespiratory collapse in the context of excessive loads. Because the use of invasive modalities of respiratory support is also associated with substantial harm, it remains the responsibility of the clinician to minimize such hazards. Direct iatrogenic consequences of mechanical ventilation include the risk to the lung (ventilator-induced lung injury) and the diaphragm (ventilator-induced diaphragm dysfunction and other forms of myotrauma). Adverse consequences on hemodynamics can also be significant. Indirect consequences (e.g., immobilization, sleep disruption) can have devastating long-term effects. Increasing awareness and understanding of these mechanisms of injury has led to a change in the philosophy of care with a shift from aiming to normalize gases toward minimizing harm. Lung (and more recently also diaphragm) protective ventilation strategies include the use of extracorporeal respiratory support when the risk of ventilation becomes excessive. This review provides an overview of the historical background of respiratory support, pathophysiology of respiratory failure and rationale for respiratory support, iatrogenic consequences from mechanical ventilation, specifics of the implementation of mechanical ventilation, and role of extracorporeal respiratory support. It highlights the need for appropriate monitoring to estimate risks and to individualize ventilation and sedation to provide safe respiratory support to each patient.
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