914. Behind the Scenes: Facilitators and Barriers to Developing State Scarce Resource Allocation Plans for the COVID-19 Pandemic.
作者: Kirsten A Riggan.;Nicholas V Nguyen.;Jackson S Ennis.;Debra A DeBruin.;Richard R Sharp.;Jon C Tilburt.;Susan M Wolf.;Erin S DeMartino.
来源: Chest. 2024年166卷3期561-571页
In response to COVID-19, many states revised, developed, or attempted to develop plans to allocate scarce critical care resources in the event that crisis standards of care were triggered. To our knowledge, no prior analysis has assessed this plan development process, including whether plans were successfully adopted.
915. Neutrophil-Mediated Inflammatory Plasminogen Degradation, Rather Than High Plasminogen-Activator Inhibitor-1, May Underly Failures and Inefficiencies of Intrapleural Fibrinolysis.
作者: Christopher D Barrett.;Peter K Moore.;Ernest E Moore.;Hunter B Moore.;James G Chandler.;Halima Siddiqui.;Elizabeth R Maginot.;Angela Sauaia.;Angel Augusto Pérez-Calatayud.;Keely Buesing.;Jiashan Wang.;Cesar Davila-Chapa.;Daniel Hershberger.;Ivor Douglas.;Fredric M Pieracci.;Michael B Yaffe.
来源: Chest. 2025年167卷1期67-75页
Complex pleural space infections often require treatment with multiple doses of intrapleural tissue plasminogen activator (tPA) and deoxyribonuclease, with treatment failure frequently necessitating surgery. Pleural infections are rich in neutrophils, and neutrophil elastase degrades plasminogen, the target substrate of tPA, that is required to generate fibrinolysis. We hypothesized that pleural fluid from patients with pleural space infection would show high elastase activity, evidence of inflammatory plasminogen degradation, and low fibrinolytic potential in response to tPA that could be rescued with plasminogen supplementation.
916. A 52-Year-Old Woman With Dysarthria, Ataxia, Xanthelasmas, and Miliary Pulmonary Nodules.
作者: Athena Huynh.;Collin Pryma.;Heather McPhaden.;Karl-Christopher Yared.;Yilin Zhang.;Katie Beadon.;Tony Ng.;Luke Y C Chen.
来源: Chest. 2024年165卷4期e95-e100页
A 52-year-old woman with no significant medical history was referred to our hospital for expedited workup of progressive dysarthria and ataxia over the past year. Prior CT angiography of the head and neck showed no relevant neurologic findings but did reveal miliary lesions in the lung apices, which was later confirmed via dedicated CT chest scan (Fig 1). Review of systems was negative for any respiratory, constitutional, or rheumatologic symptoms, except for new xanthelasma-like lesions over her forehead. She previously had smoked with 20 pack-years and had no TB risk factors. MRI of the face showed a 21-mm mass within the left external temporal fascia. MRI of the head showed diffuse leptomeningeal enhancement, right frontal lobe enhancement, and cerebellar and brainstem T2/fluid-attenuated inversion recovery hyperintensity, which prompted her admission to hospital.
917. Living Donor Lung Transplantation After Hematopoietic Stem Cell Transplantation From the Same Donor: A Risk Worth Taking.
作者: Stefania Camagni.;Lorenzo D'Antiga.;Fabiano Di Marco.;Lorenzo Grazioli.;Ezio Bonanomi.;Domenico Pinelli.;Marta Beretta.;Veronica Tintori.;Alessandro Lucianetti.;Michele Colledan.
来源: Chest. 2024年165卷4期e91-e93页
Living donor (LD) lung transplantation (LT) represents an exceptional procedure in Western countries. However, in selected situations, it could be a source of unique advantages, besides addressing organ shortage. We report a successful case of father-to-child single-lobe LT, because of the complications of hematopoietic stem cell transplantation from the same donor, with initial low-dose immunosuppressive therapy and subsequent early discontinuation. Full donor chimerism was hypothesized to be a mechanism of transplant tolerance, and this postulated immunological benefit was deemed to outweigh the risks of living donation and the possible drawbacks of single compared with bilateral LT. Favorable size matching and donor's anatomy, accurate surgical planning, and specific expertise in pediatric transplantation also contributed to the optimal recipient and donor outcomes. Ten months after LD LT, the patient's steadily good lung function after withdrawal of immunosuppressive therapy seems to confirm the original hypothesis.
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