Pathological features of connective tissue disease-associated interstitial lung disease in transbronchial cryobiopsies.

Aim: Transbronchial cryobiopsies are increasingly used for the diagnosis of interstitial lung disease (ILD), but there is a lack of published information on the features of specific ILD in cryobiopsies. Here we attempt to provide pathological guidelines for separating usual interstitial pneumonia (UIP) of idiopathic pulmonary fibrosis (IPF), fibrotic hypersensitivity pneumonitis (FHP) and connective tissue disease-associated ILD (CTD-ILD) in cryobiopsies.

Methods: We examined 120 cryobiopsies from patients with multidisciplinary discussion (MDD)-established CTD-ILD and compared them to a prior series of 121 biopsies from patients with MDD-established IPF or FHP.

The Thoracic Research Evaluation and Treatment 2.0 Model: A Lung Cancer Prediction Model for Indeterminate Nodules Referred for Specialist Evaluation.

Background: Appropriate risk stratification of indeterminate pulmonary nodules (IPNs) is necessary to direct diagnostic evaluation. Currently available models were developed in populations with lower cancer prevalence than that seen in thoracic surgery and pulmonology clinics and usually do not allow for missing data. We updated and expanded the Thoracic Research Evaluation and Treatment (TREAT) model into a more generalized, robust approach for lung cancer prediction in patients referred for specialty evaluation.

Emotional Distress, Anxiety, and General Health Status in Patients With Newly Identified Small Pulmonary Nodules: Results From the Watch the Spot Trial.

Background: Anxiety and emotional distress have not been studied in large, diverse samples of patients with pulmonary nodules.

Research Question: How common are anxiety and distress in patients with newly identified pulmonary nodules, and what factors are associated with these outcomes?

Study Design And Methods: This study surveyed participants in the Watch the Spot Trial, a large, pragmatic clinical trial of more vs less intensive strategies for radiographic surveillance of patients with small pulmonary nodules. The survey included validated instruments to measure patient-centered outcomes such as nodule-related emotional distress (Impact of Event Scale-Revised) and anxiety (Six-Item State Anxiety Inventory) 6 to 8 weeks following nodule identification.

Derivation and validation of a prediction model for histopathologic fibrotic hypersensitivity pneumonitis.

Background: Clinical differentiation of fibrotic hypersensitivity pneumonitis (f-HP) remains challenging given variable and overlapping presentations with other fibrotic interstitial lung disease (f-ILD).

Objective: We derived a multivariable model for predicting histopathologic f-HP to better inform multidisciplinary team discussion (MDD) diagnosis, particularly when biopsy may be unsafe or cannot be achieved.

Methods: Patients with histopathologically-defined f-HP and other overlapping f-ILD were reviewed for distinguishing clinical and radiological variables.

Methods for the Watch the Spot Trial. A Pragmatic Trial of More- versus Less-Intensive Strategies for Active Surveillance of Small Pulmonary Nodules.

Small pulmonary nodules are most often managed by surveillance imaging with computed tomography (CT) of the chest, but the optimal frequency and duration of surveillance are unknown. The Watch the Spot Trial is a multicenter, pragmatic, comparative-effectiveness trial with cluster randomization by hospital or health system that compares more- versus less-intensive strategies for active surveillance of small pulmonary nodules. The study plans to enroll approximately 35,200 patients with a small pulmonary nodule that is newly detected on chest CT imaging, either incidentally or by screening.

An unusual variant of scimitar syndrome predisposing to recurrent pneumonia.

Scimitar syndrome is a rare constellation of congenital conditions pertaining to partial anomalous pulmonary venous return. Radiographically, these anomalous pulmonary veins can resemble a scimitar, and have heterogeneous clinical presentations. We present an unusual case of scimitar syndrome with associated recurrent pneumonia.

Diagnostic utility of surgical lung biopsies in elderly patients with indeterminate interstitial lung disease.

Background And Objective: Idiopathic pulmonary fibrosis (IPF) is increasingly diagnosed by clinical and computed tomography (CT) criteria; however, surgical lung biopsy (SLB) may still be required in patients who lack definite CT features of usual interstitial pneumonia (UIP). We reviewed a cohort of elderly patients who underwent SLB, to evaluate the benefit of SLB in diagnosing idiopathic interstitial pneumonia (IIP).

Methods: We searched the pathology records of Mayo Clinic for ambulatory patients at least 75 years old, who underwent SLB between 2000 and 2012 for indeterminate IIP.

Assessment of Fluorodeoxyglucose F18-Labeled Positron Emission Tomography for Diagnosis of High-Risk Lung Nodules.

Importance: Clinicians rely heavily on fluorodeoxyglucose F18-labeled positron emission tomography (FDG-PET) imaging to evaluate lung nodules suspicious for cancer. We evaluated the performance of FDG-PET for the diagnosis of malignancy in differing populations with varying cancer prevalence.

Objective: To determine the performance of FDG-PET/computed tomography (CT) in diagnosing lung malignancy across different populations with varying cancer prevalence.

VV-ECMO-Assisted High-Risk Endobronchial Stenting as Rescue for Asphyxiating Mediastinal Mass.

The use of venovenous extracorporeal membrane oxygenation (VV-ECMO) has traditionally been limited to a narrow set of clinical circumstances, such as acute hypoxic respiratory failure, submassive pulmonary embolism, and cardiopulmonary collapse. Within the pediatric population, there have been cases of VV-ECMO in the context of extrinsic airway compression by a mediastinal mass, typically in the setting of either a lymphoma or germ cell tumors. However, the use of VV-ECMO for adults with extrinsic airway compression is comparatively limited.

A Case of Simultaneous Benign Metastasizing Leiomyomas and Disseminated Peritoneal Leiomyomatosis Following Endoscopic Power Morcellation for Uterine Disease.

Extrauterine spread of leiomyomas is rare and most commonly occurs in the lungs. We present a case of simultaneous metastatic leiomyomatosis to the lungs and peritoneal cavity following laparoscopic myomectomy with power morcellation. The patient presented to our institution for further management where she underwent a robotically assisted hysterectomy with bilateral salpingo-oophorectomy.

Characteristics of patients with mild to moderate primary pulmonary coccidioidomycosis.

In Arizona, USA, primary pulmonary coccidioidomycosis accounts for 15%-29% of community-acquired pneumonia. To determine the evolution of symptoms and changes in laboratory values for patients with mild to moderate coccidioidomycosis during 2010-2012, we conducted a prospective 24-week study of patients with primary pulmonary coccidioidomycosis. Of the 36 patients, 16 (44%) were men and 33 (92%) were White.

Coexistent pulmonary granulomatosis with polyangiitis (Wegener granulomatosis) and Crohn disease.

Crohn disease (CD) may be associated with various extraintestinal manifestations, including, rarely, respiratory tract involvement. When necrobiotic pulmonary nodules are present, the differential diagnosis includes granulomatosis with polyangiitis (Wegener granulomatosis) (GPA). The respiratory tract manifestations of CD and GPA may mimic each other, complicating the diagnosis and suggesting the possible coexistence of these 2 conditions.

Lymphoid hyperplasia and eosinophilic pneumonia as histologic manifestations of amiodarone-induced lung toxicity.

Amiodarone use is often limited by pulmonary toxicity. Amiodarone lung disease (ALD) classically manifests as organizing pneumonia with intra-alveolar foamy macrophages, but other patterns may also occur. Here we report 2 previously unreported patterns of ALD: lymphoid hyperplasia (LH) and eosinophilic pneumonia (EP).

Causes of pulmonary granulomas: a retrospective study of 500 cases from seven countries.

Background: The frequencies of various causes of pulmonary granulomas in pathological material are unknown, as is the influence of geographical location on aetiology. The aim of this study was to identify the causes of pulmonary granulomas in pathological specimens, to define their frequencies, and to determine whether these causes vary by geographical location.

Methods: 500 lung biopsies and resections containing granulomas were reviewed retrospectively by expert pulmonary pathologists from 10 institutions in seven countries.

Pleuropulmonary infection by Paragonimus westermani in the United States: a rare cause of Eosinophilic pneumonia after ingestion of live crabs.

Infections caused by the parasite Paragonimus westermani are endemic to Southeast Asia. Most infections reported in the United States are among immigrants who acquired the disease abroad. Due to the nonspecific nature of its presentation and rarity in the United States, the diagnosis may first be suggested by the pathologist on biopsy review.

Ability of expert physicians to structure clinical guidelines: reality versus perception.

Rationale, Aims And Objectives: Structuring Textual Clinical Guidelines (GLs) into a formal representation is a necessary prerequisite for supporting their automated application. We had developed a collaborative guideline-structuring methodology that involves expert physicians, clinical editors and knowledge engineers, to produce a machine-comprehensible representation for automated support of evidence-based, guideline-based care. Our goals in the current study were: (1) to investigate the perceptions of the expert physicians and clinical editors as to the relative importance, for the structuring process, of different aspects of the methodology; (2) to assess, for the clinical editors, the inter-correlations among (i) the reported level of understanding of the guideline structuring ontology's (knowledge scheme's) features, (ii) the reported ease of structuring each feature and (iii) the actual objective quality of structuring.

Surgery for pulmonary coccidioidomycosis: a 10-year experience.

Background: Coccidioidomycosis results from infection with Coccidioides species endemic to the southwestern United States. The mobile US population has resulted in incremental cases being found throughout the world. The fungal infection can result in pulmonary sequelae, including nodules, cavities, and complications requiring treatment by the thoracic surgeon.

A quantitative assessment of a methodology for collaborative specification and evaluation of clinical guidelines.

We introduce a three-phase, nine-step methodology for specification of clinical guidelines (GLs) by expert physicians, clinical editors, and knowledge engineers and for quantitative evaluation of the specification's quality. We applied this methodology to a particular framework for incremental GL structuring (mark-up) and to GLs in three clinical domains. A gold-standard mark-up was created, including 196 plans and subplans, and 326 instances of ontological knowledge roles (KRs).

Runtime application of Hybrid-Asbru clinical guidelines.

Clinical guidelines are a major tool in improving the quality of medical care. However, to support the automation of guideline-based care, several requirements must be filled, such as specification of the guidelines in a machine-interpretable format and a connection to an Electronic Patient Record (EPR). For several different reasons, it is beneficial to convert free-text guidelines gradually, through several intermediate representations, to a machine-interpretable format.

Hospital ethics case consultations: practical guidelines.

Hospital ethics committees provide education, assist in policymaking, and deliver consultation services. In this article, we describe the structure, operation, and institutional framework within which an ethics committee fulfills its missions, with emphasis on the consultation process.

Ethical issues in the long-term management of progressive degenerative neuromuscular diseases.

Degenerative neuromuscular diseases are characterized by a gradual decline of motor function leading to respiratory collapse, while the patients retain consciousness and cognition. The ethical challenges of caring for such patients result from the need to implement various combinations of initiating, withholding, and withdrawing life-sustaining interventions. In caring for this population of patients physicians should adhere to the ethical principles of autonomy, beneficence, nonmaleficence, and justice.