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1.
Chest ; 162(4):A2241, 2022.
Article in English | EMBASE | ID: covidwho-2060916

ABSTRACT

SESSION TITLE: Pulmonary Manifestations of Infections SESSION TYPE: Case Reports PRESENTED ON: 10/17/2022 03:15 pm - 04:15 pm INTRODUCTION: Diffuse alveolar hemorrhage (DAH) due to an undiagnosed autoimmune condition is rare and can be life-threatening. Veno-venous extracorporeal membrane oxygenation (VV-ECMO) has been described as a viable rescue therapy in severe cases, providing time to establish a diagnosis and begin remission induction therapy (1). We report a patient who presented during the Omicron surge with hypoxemic respiratory failure due to pulmonary hemorrhage ultimately diagnosed with antineutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV) who was supported with VV-ECMO without systemic anticoagulation. CASE PRESENTATION: A 46-year-old woman presented with subacute fatigue and two days of cough and brown sputum. She was found to have normocytic anemia (hemoglobin 3.5 g/dL), renal failure (serum creatinine 17.4 µmol/L), and bilateral pulmonary infiltrates on chest roentgenogram. Though vaccinated, nasal molecular testing detected SARS-CoV-2. She was intubated for progressive hypoxic respiratory failure and bronchoalveolar lavage fluid was consistent with DAH. She received empiric antibiotics, remdesivir, and pulse dose intravenous methylprednisolone as well as continuous renal replacement therapy and plasma exchange. Due to refractory hypoxemia she was cannulated for VV-ECMO. Systemic anticoagulation was deferred due to concerns that it may exacerbate her underlying pathology and due to a small subcortical bleed seen on computed tomography of the head. Perinuclear ANCA (titer >1:1280) was confirmed by immunofluorescence analysis with elevated myeloperoxidase serologies and cyclophosphamide was initiated. Glomeruli with cellular crescent formation consistent with AAV was later identified on renal biopsy. Her course was complicated by recurrent DAH while tapering steroids and an iliac vein thrombus, extracted during decannulation. Her respiratory failure resolved and she was discharged to rehab. DISCUSSION: Traditionally, VV-ECMO obligates systemic anticoagulation to prevent circuit thrombosis, however this may be viewed as a barrier to its use in patients with prohibitive bleeding risk and may contribute to the therapy's overall morbidity. Some institutions have begun to demonstrate the safety of ECMO with low- or prophylactic doses of anticoagulation (2), but this practice remains controversial. Detection of SARS-CoV-2 posed diagnostic and management challenges and its significance to this case remains uncertain. There are many past examples of infectious triggers for both DAH and AAV, and there is emerging evidence for an association between SARS-CoV-2 and ANCA (3). Concerns regarding the risk of B-cell depletion influenced the selection of remission induction therapy. CONCLUSIONS: In the case described, a patient with severe DAH was successfully supported with VV-ECMO. Withholding systemic anticoagulation did not prevent recurrent bleeding and may have contributed to a deep vein thrombosis. Reference #1: Arnold S, Deja M, Nitschke M, Bohnet S, Wallis S, Humrich JY, Riemekasten G, Steinhoff J, Lamprecht P. Extracorporeal membrane oxygenation in ANCA-associated vasculitis. Autoimmun Rev. 2021 Jan;20(1):102702. doi: 10.1016/j.autrev.2020.102702. Epub 2020 Nov 11. PMID: 33188916. Reference #2: Kurihara C, Walter JM, Karim A, et al. Feasibility of Venovenous Extracorporeal Membrane Oxygenation Without Systemic Anticoagulation. Ann Thorac Surg. 2020;110(4):1209-1215. doi:10.1016/j.athoracsur.2020.02.011 Reference #3: Kadkhoda, K., Laurita, K. Antineutrophil cytoplasmic antibodies and their association with clinical outcomes in hospitalized COVID-19 patients. Cell Death Discov. 7, 277 (2021). DISCLOSURES: No relevant relationships by Nathaniel Nelson No relevant relationships by Radu Postelnicu no disclosure on file for Antonio Velez;

2.
Chest ; 162(4):A1111-A1112, 2022.
Article in English | EMBASE | ID: covidwho-2060770

ABSTRACT

SESSION TITLE: Impact of Health Disparities and Differences SESSION TYPE: Rapid Fire Original Inv PRESENTED ON: 10/19/2022 11:15 am - 12:15 pm PURPOSE: Vulnerable patients, including minorities and underserved populations whose care relies on public hospitals, have limited access to advanced cardiac or respiratory care in shock centers or extracorporeal membrane oxygenation (ECMO)-capable hospitals, especially when socioeconomic or insurance barriers play a role in patient selection. Our aim is to describe the implementation of an ECMO program for cardiac and respiratory failure during the COVID-19 pandemic in the largest public health system in the country, as a strategy to mitigate healthcare disparities and improve access to care for minorities. METHODS: We collected clinical, demographic and socioeconomic data of all patients undergoing ECMO at Bellevue Hospital Center, the shock and ECMO center for New York City’s Health and Hospitals’ network. This public health system includes 11 Hospitals and provides care to 1 million New Yorkers. The decision to proceed with ECMO took place with a multidisciplinary team discussion, which was also in charge of providing longitudinal care during their hospitalization. RESULTS: A total of 49 patients were included [30 veno-venous (VV) ECMO, 19 venoarterial (VA) ECMO, including 9 extracorporeal cardiopulmonary resuscitation (ECPR)] from April 1st, 2020 to March 30th, 2022. The median age was 42.6 years, 57% were male, 38% were Hispanic, 35% African American, 14% white, 6% Asian and 8.2% had other ethnicities;33% were uninsured, 49% lived below the poverty level reported for New York City and 20% were undocumented. Level of education was 8th grade or less in 2.1%, high school in 24.5%, ≤ 2 years of college in 10.2%, >4 years of college in 12.2% and unknown in 51%. ECMO survival was 56% for VV ECMO, 44% for VA ECMO and 33% for ECPR. Survival to discharge was 56% for VV, 33% for VA and 33% for ECPR. One VV ECMO patient was bridged to lung transplant, there were no patients bridged to LVAD or heart transplant. Bleeding complications occurred in 3 patients (6%) and there were no procedural related complications. CONCLUSIONS: Our multidisciplinary ECMO program demonstrates feasibility to provide care to underserved and vulnerable populations with outcomes comparable to the national average, despite the challenges related to the potential limitations in bridging strategies for such patients. While socioeconomic and insurance status have a key role in bridging options for ECMO, they should not be a major determinant in denying patients advanced cardiopulmonary support if clinically indicated. CLINICAL IMPLICATIONS: Access to advance cardiorespiratory therapies including ECMO for vulnerable populations is a present need and is feasible with a multidisciplinary team DISCLOSURES: Speaker/Speaker's Bureau relationship with Zoll Please note: 3 years Added 04/04/2022 by Carlos Alviar, value=Honoraria No relevant relationships by Fariha Asef No relevant relationships by Sripal Bangalore No relevant relationships by Samuel Bernard No relevant relationships by Lauren Bianco No relevant relationships by Nishay Chitkara No relevant relationships by Jennifer Cruz No relevant relationships by Michael DiVita Research support relationship with Eurofins Viracor Please note: 12/1/2021 ongoing Added 12/23/2021 by Randal Goldberg, value=Grant/Research Support No relevant relationships by Kerry Hena No relevant relationships by William Howe No relevant relationships by Norma Keller no disclosure on file for Ma-Rosario Mertola;no disclosure on file for Thor Milland;No relevant relationships by vikramjit mukherjee No relevant relationships by Kayla Nunemacher No relevant relationships by Mansi Patel No relevant relationships by Radu Postelnicu No relevant relationships by Deepak Pradhan No relevant relationships by Vito Stasolla no disclosure on file for Amit Uppal;No relevant relationships by Susan Vlahakis No relevant relationships by Kah Loon Wan no disclosure on file for Victoria Yunaev;

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