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共有 32146 条符合本次的查询结果, 用时 2.8336487 秒

561. A 40-year-old woman with multiple pulmonary nodules. Pulmonary hyalinizing granuloma.

作者: Kamonpun Ussavarungsi.;Andras Khoor.;Howard I Jolles.;Isabel Mira-Avendano.
来源: Chest. 2014年146卷6期e198-e203页
A 40-year-old woman (a nonsmoker) with history of idiopathic thrombocytopenic purpura and a platelet count > 90,000 cells/μL without specific medication was referred to pulmonary clinic for evaluation of multiple pulmonary nodules. The patient presented to an outside hospital with fatigue, lack of energy, and dyspnea on exertion for 2 years. She denied fever, cough, chest pain, or weight loss. An initial chest radiograph showed bilateral multiple pulmonary nodules. A chest CT scan revealed multiple nodular lesions, varying in size, in all lobes of both lungs. There was no mediastinal lymphadenopathy or pleural effusion. There was no significant hypermetabolic activity on a subsequent fluorodeoxyglucose PET scan/CT scan, and there had been no significant change. She underwent CT scan-guided percutaneous transthoracic biopsy and bronchoscopy with transbronchial biopsies, all of which were inconclusive. An open lung biopsy was considered.

562. A woman in her 70s presented to the ED complaining of worsening shortness of breath.

作者: Jennifer V Huang.;Amy Sanghvi.;James W Tsung.;Bret P Nelson.
来源: Chest. 2014年146卷6期e195-e197页

563. Talc pleurodesis through indwelling pleural catheters for malignant pleural effusions: retrospective case series of a novel clinical pathway.

作者: Liju Ahmed.;Hugh Ip.;Deepak Rao.;Nishil Patel.;Farinaz Noorzad.
来源: Chest. 2014年146卷6期e190-e194页
Malignant pleural effusions cause significant morbidity, but there is no gold standard minimally invasive treatment. A new therapeutic approach combines talc pleurodesis and indwelling pleural catheters (IPCs) to enable outpatient management. This case series summarizes the safety and efficacy data of all patients (24) with a symptomatic malignant pleural effusion who underwent talc pleurodeses via IPCs between December 2010 and July 2013. Successful pleurodesis was achieved in 22 procedures (92%). There was one empyema, one hydropneumothorax, one recurrent effusion, and two minor complications: one drain site wound infection and one complaint of chest pain. Twenty-two procedures (92%) were performed in the outpatient setting. This report confirms the safety and efficacy of administering talc slurry through IPCs in an outpatient setting. Studies in a larger cohort are necessary to define the role of this novel approach in the treatment algorithm of patients with this condition.

564. A case of hypercalcemia secondary to hot tub lung.

作者: Jessica Donato.;Colin T Phillips.;Adam W Gaffney.;Paul A VanderLaan.;Majd Mouded.
来源: Chest. 2014年146卷6期e186-e189页
Hypersensitivity pneumonitis (HP) is a diffuse granulomatous lung disease resulting from inhalation of an antigen to which an individual has been previously sensitized. Hot tub lung is an increasingly common form of HP associated with inhalation of water aerosols containing Mycobacterium avium complex organisms that contaminate hot tub water. Granulomatous lung disorders, most classically sarcoidosis, have been associated with unregulated 1-α-hydroxylase expression by macrophages present in the granulomas, causing conversion of 25-OH-vitamin D to the active form of vitamin D, 1,25(OH)2 vitamin D, and, thus, hypercalcemia. To our knowledge, this is the first confirmed case of hypercalcemia secondary to elevated 1,25(OH)2 vitamin D levels associated with HP.

565. Swallowing dysfunction after critical illness.

作者: Madison Macht.;S David White.;Marc Moss.
来源: Chest. 2014年146卷6期1681-1689页
Critical care practitioners must frequently make decisions about their patients' ability to swallow food, liquids, and pills. These decisions can be particularly difficult given the incompletely defined epidemiology, diagnostic criteria, and prognostic features of swallowing disorders in critically ill patients. Furthermore, the consequences of improper decisions-namely, aspiration, malnutrition, hunger, and thirst-can be devastating to patients and their families. This review outlines the problem of swallowing dysfunction in critically ill patients and then addresses the most clinically relevant questions that critical care practitioners face today. First, we review the epidemiology of swallowing dysfunction in critically ill patients. Next, we describe the different diagnostic tests for swallowing dysfunction and describe a general approach to the initial assessment for swallowing disorders. Finally, we explore the existing treatments for swallowing dysfunction. Given the burden of swallowing dysfunction in patients recovering from critical illness, enabling critical care practitioners to manage these disorders, while stimulating new investigation into their pathophysiology, diagnosis, and management, will enhance our care of critically ill patients.

566. Where there is smoke…there is sleep apnea: exploring the relationship between smoking and sleep apnea.

作者: Vidya Krishnan.;Sherrie Dixon-Williams.;J Daryl Thornton.
来源: Chest. 2014年146卷6期1673-1680页
Smoking and OSA are widely prevalent and are associated with significant morbidity and mortality. It has been hypothesized that each of these conditions adversely affects the other, leading to increased comorbidity while altering the efficacy of existing therapies. However, while the association between smoking and OSA is plausible, the evidence is less than conclusive. Cigarette smoking may increase the severity of OSA through alterations in sleep architecture, upper airway neuromuscular function, arousal mechanisms, and upper airway inflammation. Conversely, some evidence links untreated OSA with smoking addiction. Smoking cessation should improve OSA, but the evidence to support this is also limited. This article reviews the current evidence linking both conditions and the efficacy of various treatments. Limitations of the current evidence and areas in need of future investigation are also addressed.

567. Medical futility: a new look at an old problem.

作者: Cheryl J Misak.;Douglas B White.;Robert D Truog.
来源: Chest. 2014年146卷6期1667-1672页
Efforts to answer the question of whether or when physicians may unilaterally refuse to provide treatments they deem medically futile, but that are nonetheless demanded by patients or their surrogates, have been characterized as intractable failures. We propose a new look at this old problem and suggest reframing the debate in terms of the implicit social contract, in healthy democracies, between the medical profession and the society it serves. This ever-evolving contract is predicated upon providing patients with beneficial and desired medical care within the constraints of scarce resources and the characteristics of our health-care system. The contract ranges over a continuum of decisions, from those that do not need an explicit negotiated agreement with the patient or surrogate, to those that do. Between these two poles lies a contentious gray area, where the rights and obligations of patients and physicians are being shaped continuously by the many forces that are at play in a democratic society, including professional guidelines, social advocacy, legislation, and litigation. We provide examples of how this gray area has been and is negotiated around rights to refuse and demand a variety of life-sustaining treatments, and anticipate conflicts likely to arise in the future. Reframing the futility debate in this way reveals that the issue is not a story of intractable failure, but rather, a successful narrative about how democracies balance the legitimate perspectives of patients and physicians against a backdrop of societal constraints and values.

568. Clinical approach and management for selected fungal infections in pulmonary and critical care patients.

作者: Andrew H Limper.
来源: Chest. 2014年146卷6期1658-1666页
Fungal lung infections are widely encountered and present both diagnostic and therapeutic challenges. The increasing prevalence of fungal infections is correlated with increasing numbers of immunocompromised patients, enhanced awareness of these infections, and improved methodologies for diagnosis. Fortunately, additional antifungal agents are available to combat these important infections. This review covers the clinical approach to fungal lung infections encountered in pulmonary and critical care practice.

569. Personalized therapy for lung cancer.

作者: Andre L Moreira.;Juliana Eng.
来源: Chest. 2014年146卷6期1649-1657页
The past decade has seen an enormous advancement in the therapy for lung cancer, predominantly seen in adenocarcinoma, ranging from the introduction of histology-based drugs to the discovery of targetable mutations. These events have led to a personalized therapeutic approach with the delivery of drugs that target specific oncogenic pathways active in a given tumor with the intent of acquiring the best response rate. The discovery of sensitizing mutation in the epidermal growth factor receptor gene as the basis for clinical response to tyrosine kinase inhibitors led to a systematic search for other molecular targets in lung cancer. Currently, there are several molecular alterations that can be targeted by experimental drugs. These new discoveries would not be possible without a parallel technological evolution in diagnostic molecular pathology. Next-generation sequencing (NGS) is a technology that allows for the evaluation of multiple molecular alterations in the same sample using a small amount of tissue. Selective evaluation of targeted cancer genes, instead of whole-genome evaluation, is the approach that is best suited to enter clinical practice. This technology allows for the detection of most molecular alteration with a single test, thus saving tissue for future discoveries. The use of NGS is expected to increase and gain importance in clinical and experimental approaches, since it can be used as a diagnostic tool as well as for new discoveries. The technique may also help us elucidate the interplay of several genes and their alteration in the mechanism of drug response and resistance.

570. Automated surveillance for ventilator-associated events.

作者: Jennifer P Stevens.;George Silva.;Jean Gillis.;Victor Novack.;Daniel Talmor.;Michael Klompas.;Michael D Howell.
来源: Chest. 2014年146卷6期1612-1618页
The US Centers for Disease Control and Prevention has implemented a new, multitiered definition for ventilator-associated events (VAEs) to replace their former definition of ventilator-associated pneumonia (VAP). We hypothesized that the new definition could be implemented in an automated, efficient, and reliable manner using the electronic health record and that the new definition would identify different patients than those identified under the previous definition.

571. End-of-life expenditure in the ICU and perceived quality of dying.

作者: Nita Khandelwal.;Ruth A Engelberg.;David C Benkeser.;Norma B Coe.;J Randall Curtis.
来源: Chest. 2014年146卷6期1594-1603页
Although end-of-life care in the ICU accounts for a large proportion of health-care costs, few studies have examined the association between costs and satisfaction with care. The objective of this study was to investigate the association of ICU costs with family- and nurse-assessed quality of dying and family satisfaction.

572. Heterogeneity of specific gas volume changes: a new tool to plan lung volume reduction in COPD.

作者: Caterina Salito.;Livia Barazzetti.;Jason C Woods.;Andrea Aliverti.
来源: Chest. 2014年146卷6期1554-1565页
The aim of this work was to investigate if regional differences of specific gas volume (SVg) in the different regions (lobes and bronchopulmonary segments) in healthy volunteers and patients with severe emphysema can be used as a tool for planning lung volume reduction (LVR) in emphysema.

573. One-year safety and efficacy study of arformoterol tartrate in patients with moderate to severe COPD.

作者: James F Donohue.;Nicola A Hanania.;Barry Make.;Matthew C Miles.;Donald A Mahler.;Lisa Curry.;Robert Tosiello.;Alistair Wheeler.;Donald P Tashkin.
来源: Chest. 2014年146卷6期1531-1542页
Arformoterol tartrate (arformoterol, 15 μg bid) is a nebulized long-acting β2-agonist approved for maintenance treatment of COPD.

574. Characterization of patients with borderline pulmonary arterial pressure.

作者: Gabor Kovacs.;Alexander Avian.;Maria Tscherner.;Vasile Foris.;Gerhard Bachmaier.;Andrea Olschewski.;Horst Olschewski.
来源: Chest. 2014年146卷6期1486-1493页
Resting mean pulmonary artery pressure (mPAP) values between 20 and 25 mm Hg are above normal but do not fulfill the criteria for pulmonary hypertension (PH). The clinical relevance of such borderline hemodynamics is a matter of discussion.

575. Did we finally slay the evil dragon of cigarette smoking in the late 20th century?: unfortunately, the answer is no - the dragon is still alive and well in the 21st century and living in the third world. Shame on us!

作者: Richard D Hurt.;Joseph G Murphy.;William F Dunn.
来源: Chest. 2014年146卷6期1438-1443页
If cigarettes were introduced as a new consumer product today, it is unlikely they would receive government regulatory approval. Cigarettes have proven biologic toxicities (carcinogenesis, atherogenesis, teratogenesis) and well-established causal links to human disease. Things were very different in 1913 when the R. J. Reynolds Tobacco Company introduced the first modern cigarette, the iconic Camel. By the early 1950s, definitive scientific reports linked cigarettes and human disease, but it was more than a half century later (2006) that cigarette manufacturers were found guilty by a federal court of deceptive product marketing regarding the health hazards of tobacco use. In the United States, cigarette smoking remains a major but slowly declining problem. But in developing countries, cigarette use is expanding tremendously. In global terms, the epidemic of smoking-caused disease is projected to increase rapidly in coming decades, not decline. Society may have begun to slowly win the smoking battle in the developed world, but we are resoundingly losing the global war on smoking. All is not lost! There is some good news! The 2003 Framework Convention on Tobacco Control, supported strongly by the American College of Chest Physicians, is the first global public health treaty of the new millennium. Many developed societies have begun planning to rid their countries of cigarettes in what is called the Endgame Strategy, and now is the time for the international medical community to help change tobacco policy to a worldwide endgame approach to rid all humanity of smoking-related diseases.

576. Rebuttal from Drs Mermis and Simpson.

作者: Joel D Mermis.;Steven Q Simpson.
来源: Chest. 2014年146卷6期1436-1437页

577. Rebuttal from Drs Flannery and Kruger.

作者: Alexander H Flannery.;Peter S Kruger.
来源: Chest. 2014年146卷6期1435-1436页

578. COUNTERPOINT: should patients receiving statins prior to ICU admission be continued on statin therapy? No.

作者: Joel D Mermis.;Steven Q Simpson.
来源: Chest. 2014年146卷6期1433-1435页

579. POINT: should patients receiving statins prior to ICU admission be continued on statin therapy? Yes.

作者: Alexander H Flannery.;Peter S Kruger.
来源: Chest. 2014年146卷6期1431-1433页

580. Improving the management of children with bronchiolitis: the updated American Academy of Pediatrics Clinical Practice Guideline.

作者: Siew C Su.;Anne B Chang.
来源: Chest. 2014年146卷6期1428-1430页
共有 32146 条符合本次的查询结果, 用时 2.8336487 秒