Chest
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Multicenter Study
Effect of single vs bilateral lung transplantation on plasma surfactant protein D levels in idiopathic pulmonary fibrosis.
Serum levels of surfactant protein D (SP-D) have been suggested as reflecting epithelial damage in acute lung injury, COPD, and idiopathic pulmonary fibrosis (IPF). However, little is known about SP-D levels in the setting of lung transplantation. ⋯ Subjects undergoing lung transplant for IPF have significantly higher baseline plasma SP-D levels compared with those with other diagnoses. Plasma SP-D is likely a biomarker of the air-blood barrier integrity in the native IPF lung, but may be less useful as a biomarker of PGD after transplant.
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Pomalidomide is an immunomodulatory derivative (IMiD) active in multiple myeloma. In this report, we review the course of two patients receiving pomalidomide therapy who subsequently developed dyspnea, fever, hypoxia, and ground-glass opacities on CT scan. An extensive workup for infectious causes was negative. ⋯ The combination of symptoms, radiographic findings, clinical course, and response to treatment strongly supports the diagnosis of acute pulmonary toxicity secondary to pomalidomide. We then review previously published pulmonary toxicity data on thalidomide and lenalidomide and compare the described clinical courses, radiographic findings, and responses to treatment with those observed in our patients. We conclude that pulmonary toxicity is a potential adverse effect of pomalidomide therapy and encourage physicians to remain cognizant of its clinical presentation.
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Respiratory diseases remain a major public health problem in the United States and worldwide, with increasing morbidity and mortality. Substantial progress has been made to advance understanding of the basic mechanisms of lung disease and to optimize clinical management of patients with a range of respiratory diseases. Despite this progress, our knowledge of how to predict disease prior to symptoms, improve disease definition and subclassification, and target novel and new treatments in a more personalized manner still remains inadequate. This article highlights several future opportunities and challenges related to genomics and molecular characterization of lung disease, lung injury and repair, translational lung research, the microbiome, and sleep and circadian biology as potential frontiers to advance progress in respiratory biology in health and disease.
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Accountability in medicine, once assigned primarily to individual doctors, is today increasingly shared by groups of health-care providers. Because patient safety experts emphasize that most errors are caused not by individual providers, but rather by system breakdowns in complex health-care teams, individual doctors are left to wonder where their accountability lies. Increasingly, teams deliver care. ⋯ The concept of collective accountability requires doctors to adopt transparent behaviors, learn new skills for improving team performance, and participate in institutional safety initiatives to evaluate errors and implement plans for preventing recurrences. It also means that institutions need to prioritize team training, develop robust, nonpunitive reporting systems, support clinicians after adverse events and medical error, and develop ways to compensate patients who are harmed by errors. A conceptual leap to collective accountability may help overcome longstanding professional and societal norms that not only reinforce individual blame and impede patient safety but may also leave the patient and family without a true advocate.
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The role of Mycoplasma pneumoniae (Mp) in the initiation and persistence of asthma remains elusive. Mp community-acquired respiratory distress syndrome toxin (CARDS Tx) is a unique virulence factor that induces an intense lymphocytic response and exacerbates asthma in animal models. We sought to determine the incidence of Mp infection and the presence of CARDS Tx in subjects with refractory asthma (RA). ⋯ Subjects with RA may be chronically infected with Mp. PCR for CARDS Tx appears to be the most sensitive method of identifying Mp infection. Despite the persistence of Mp in subjects with RA, some subjects failed to mount an IgG response, and macrolide therapy was insufficient to eradicate Mp.