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hemorrhage alveolar

Jorge L Morales-Estrella, Michael Machuzak, Bohdan Pichurko, Hanine Inaty, Atul C Mehta
Negative pressure pulmonary edema is a well-described complication of upper airway obstruction. However, the simultaneous occurrence of blood-stained secretions and petechial tracheobronchial hemorrhage are rarely recognized and a potential complication of transient intentional occlusion of the airways. We described a case of "hemorrhagic bronchial mucosa syndrome" and asymptomatic blood-tinged pulmonary edema after balloon bronchoplasty for a concentric tracheal stenosis using a flexible bronchoscopy...
April 2018: Journal of Bronchology & Interventional Pulmonology
Hasan Yuksekkaya, Meltem Gumus, Aylin Yucel, Meltem Energin, Serafettin Demirci
BACKGROUND: Mistaken ingestion of all manner of toxic matter is common in childhood, but poisoning with fireworks and matchsticks is rare. Fireworks usually contain 10% yellow phosphorus and 50% potassium chlorate. Potassium chlorate is an extremely reactive and toxic agent that is used in fireworks and matchstick heads. METHODS: Eleven cases (7 females and 5 males; median age, 36 months [ranging from 24 to 48 months]) of poisoning after ingestion of fireworks and matchstick(s), between February 2008 and June 2014, were reviewed...
March 12, 2018: Pediatric Emergency Care
Eli M Miloslavsky, John L Niles, Zachary S Wallace, Frank B Cortazar, Ana Fernandes, Karen Laliberte, John H Stone
OBJECTIVE: Therapeutic advances in ANCA-associated vasculitis (AAV) have improved patient survival, but mortality rates remain higher than the general population. Glucocorticoids contribute to AAV morbidity and mortality. We examined whether an 8-week glucocorticoid course in combination with rituximab (RTX) would induce disease remission in patients with AAV. METHODS: Patients with active AAV received an 8-week prednisone taper and RTX 375mg/m2 weekly for 4 weeks...
February 3, 2018: Seminars in Arthritis and Rheumatism
Irem Serifoglu, Balam Er Dedekarginoglu, Ebru Hatice Ayvazoglu Soy, Gaye Ulubay, Mehmet Haberal
OBJECTIVES: Hemoptysis is a symptom that can be caused by airway disease, pulmonary parenchymal disease, or pulmonary vascular disease, or it can be idiopathic. Infection is the most common cause of hemoptysis, accounting for 60% to 70% of cases. Hemoptysis is also an initial symptom of diffuse alveolar hemorrhage syndrome, although it may be absent at presentation in one-third of patients. Diffuse alveolar hemorrhage is characterized by disruption of the alveolar-capillary basement membranes because of either injury or inflammation of the arterioles, venules, or capillaries, resulting in bleeding in alveolar spaces...
March 2018: Experimental and Clinical Transplantation
Jon M Florence, Agnieszka Krupa, Laela M Booshehri, Sandra A Davis, Michael A Matthay, Anna K Kurdowska
Infection with seasonal influenza A virus (IAV) leads to lung inflammation and respiratory failure, a main cause of death in influenza infected patients. Previous experiments in our laboratory indicated that Bruton's tyrosine kinase (Btk) plays a substantial role in regulating inflammation in the respiratory region during acute lung injury (ALI) in mice, therefore we sought to determine if blocking Btk activity had a protective effect in the lung during influenza induced inflammation. A Btk inhibitor (Btk Inh...
March 8, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
G Ortiz, M Garay, D Mendoza, P Cardinal-Fernández
INTRODUCTION: Acute respiratory distress syndrome (ARDS) is an inflammatory lung disorder, and its pathological hallmark is diffuse alveolar damage (DAD). Given that open lung biopsy (OLB) can sometimes result in severe side effects, it is rarely performed in patients with ARDS. AIM: The aims of this study were to describe: (a) the rate of treatment change associated with the histological result; and (b) the incidence of side effects induced by OLB. DESIGN AND PATIENTS: A retrospective, single-center, descriptive observational study was carried out in Hospital Santa Clara (Bogotá, Colombia) from February 2007 to January 2014...
February 28, 2018: Medicina Intensiva
Dana Safavian, Chung Ho Leung, Andras Kapus, Menachem Ailenberg, Katalin Szaszi, Ravi Shani, Caterina Di Ciano-Oliveira, Magar Ghazerian, Ori Rotstein
Major hemorrhage is a significant contributor to the morbidity and mortality resulting from traumatic injury. In addition to its role in in early mortality, hemorrhagic shock followed by resuscitation (HS/R) is known to initiate immunological events which contribute to the development of organ dysfunction. The pathogenesis of acute lung injury following HS/R involves macrophage activation. Recent studies have shown that macrophage function may in part be regulated by polarization towards classical M1 pro-inflammatory cells or alternatively activated anti-inflammatory M2 cells...
February 27, 2018: Shock
Bharat Bajantri, Binita Sapkota, Sindhaghatta Venkatram
BACKGROUND Diffuse alveolar hemorrhage (DAH) is a life-threatening disorder resulting in hemorrhage into the lungs due to a variety of reasons. The underlying etiology for DAH is broadly divided into immune and non-immune mediated causes. Rheumatological disorders account for a small number of cases. Although hemoptysis is one of the alarming symptoms of DAH, it is absent in a third of the cases. Diagnosis often requires a conglomerate of history, clinical, and laboratory investigation and radiological studies...
February 28, 2018: American Journal of Case Reports
John B West
One of the most interesting unanticipated findings by André Cournand and Dickinson Richards in their groundbreaking studies of cardiac catheterization was the very low pressure in the normal pulmonary circulation. At the time, in the 1940s, the significance of this was not appreciated. For example, in their speeches at the Nobel Prize ceremony, neither of these laureates referred to the low pressure, although they did discuss other features of the pulmonary circulation. It was up to the cardiologist, William Dock, to point out that these low pressures implied a very uneven distribution of blood flow in the lung, and in particular that in the normal upright lung, the blood flow to the apex would be extremely small...
February 2018: Annals of the American Thoracic Society
M Underner, J Perriot, B Wallaert, G Peiffer, J-C Meurice, N Jaafari
In France, cocaine is the second most commonly illicit drug used after cannabis. Cocaine, mainly smoked in the form of crack, can be responsible for a wide range of respiratory disorders. The aim of this systematic literature review was to clarify what is known about the link between cocaine use and alveolar hemorrhage. We performed a Medline search covering the period 1980-2016 and collected data from 84 articles. The number of acute forms described in the literature is small but postmortem studies show that hidden forms are frequent...
February 16, 2018: Revue des Maladies Respiratoires
Shuhong Han, Haoyang Zhuang, Stepan Shumyak, Jingfan Wu, Chao Xie, Hui Li, Li-Jun Yang, Westley H Reeves
The generation of CD138+ phagocytic macrophages with an alternative (M2) phenotype that clear apoptotic cells from tissues is defective in lupus. Liver X receptor-alpha (LXRα) is an oxysterol-regulated transcription factor that promotes reverse cholesterol transport and alternative (M2) macrophage activation. Conversely, hypoxia-inducible factor 1-α (HIF1α) promotes classical (M1) macrophage activation. The objective of this study was to see if lupus can be treated by enhancing the generation of M2-like macrophages using LXR agonists...
2018: Frontiers in Immunology
Ahrar Khan, M Kashif Saleemi, Farah Ali, Muhammad Abubakar, Riaz Hussain, Rao Zahid Abbas, Imtiaz Ahmad Khan
Peste des petits ruminants (PPR), an economically important viral transboundary disease of small ruminants is not only prevalent in Pakistan but also in other countries where people rely on agriculture and animal products. The present study was aimed at describing the pathology and antigen localization in natural PPR infections in local (Kajli sheep; Beetal goats) as well as imported small ruminant breeds (Dorper sheep; Australian Boer goat). Morbidity and mortality rates were significantly (P < 0.001) higher in indigenous Kajli sheep (75...
February 7, 2018: Microbial Pathogenesis
Y Jin, L-Q Peng, A-L Zhao
OBJECTIVE: To explore the changes of surfactant protein C, D (SP-C, SP-D) and apoptosis of alveolar epithelial cells (AEC) in the lung injury of neonatal rats induced by hyperoxia. MATERIALS AND METHODS: We divided neonatal rats within 24 hours into two groups randomly: the air group (n = 50) and the hyperoxia group (n = 50). Rats in the air group and hyperoxia group were bred conventionally and in tanks with normal pressure and 90% concentration of oxygen, respectively...
January 2018: European Review for Medical and Pharmacological Sciences
Ruiliang Chu, Jiuling Wang, Yang Bi, Guoxin Nan
BACKGROUND CONTEXT: Lung injury is a major cause of respiratory complications following an acute spinal cord injury (ASCI), which are associated with a high mortality rate. Autophagy has been shown to be involved in a variety of lung diseases; however, Whether autophaphy is activated in the lung following ASCI remains unknown. PURPOSE: The objective of this study was to investigate the induction of autophagy in the lung after ASCI. STUDY DESIGN: This is an experimental animal study of ASCI investigating kinetics of autophagy in the lung following ASCI...
January 17, 2018: Spine Journal: Official Journal of the North American Spine Society
Salih Kılıç, Erhan Saraçoğlu, Gülin Alkan
Alveolar hemorrhage (AH) is a heterogeneous clinical syndrome with a high mortality rate that is characterized by extensive bleeding into the alveolar spaces. AH usually develops secondary to immunological disease and, less frequently, to drug use. Presently described is the case of an 86-year-old woman with AH who had been using rivaroxaban for 6 months.
January 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
Josué Hernando, Antonio Aguilar-Salvatierra, Ignacio Osoitz Leizaola-Cardesa, Pedro Martínez Seijas, Pablo Aguirre-Echebarria, Javier Martín, Gerardo Gómez-Moreno
BACKGROUND: Osteomas are infrequent benign bone tumors of uncertain etiology. They are usually situated at extremities and their occurrence in the jaws is relatively rare. There are 3 types of osteoma: central, peripheral, and extraskeletal. Preoperative presumptive diagnosis is performed by means of radiography using orthopantomographs, computerized tomographs, or cone beam scans. Treatment is surgical and consists of careful exeresis and curettage of the adjacent tissue. In recent years, piezoelectric surgery has been used to treat bone pathologies in the maxillofacial area, orthopedic surgery, and neurosurgery...
December 27, 2017: Journal of Craniofacial Surgery
Ahmed Nadeem, Naif O Al-Harbi, Sheikh F Ahmad, Khalid E Ibrahim, Nahid Siddiqui, Mohammed M Al-Harbi
Acute lung injury (ALI) is a heterogeneous disease with the hallmarks of alveolar capillary membrane injury, increased pulmonary edema and pulmonary inflammation. The commonest direct etiological factor for ALI is usually parenchymal lung infection or hemorrhage. Reactive oxygen species (ROS) generated by NADPH oxidase (NOX2) are thought to play an important role in the pathophysiology of ALI. Glucose-6-phosphate dehydrogenase (G6PD) plays an important role both in production of ROS as well as their removal through supply of NADPH...
December 25, 2017: Clinical and Experimental Immunology
Hee Eun Lee, Eunhee S Yi, Jeffrey T Rabatin, J Kyle Bohman, Anja C Roden
BACKGROUND: The outcome of extracorporeal membrane oxygenation (ECMO) might be influenced by its complications. Only limited information is available regarding the pathologic consequences of ECMO especially in the era of modern ECMO technology. METHODS: We studied the histopathologic findings in autopsy lungs of patients treated with ECMO as compared to those without ECMO. Autopsy files were queried for cases with ECMO. An age and gender-matched control group, comprised of patients who died in the Intensive Care Unit without acute respiratory distress syndrome, pneumonia, or ECMO, was compared with patients with ECMO for cardiac reason...
December 20, 2017: Chest
Shinichi Miyazaki, Takuya Ikeda, Genshi Ito, Masahide Inoue, Keiji Nara, Yuko Nishinaga, Yoshinori Hasegawa
BACKGROUND: Pulmonary tumor thrombotic microangiopathy is a special type of tumor thromboembolism. We report the case of a patient who developed pulmonary tumor thrombotic microangiopathy with alveolar hemorrhage. Almost all patients with pulmonary tumor thrombotic microangiopathy die within 1 week of the onset of dyspnea; however, the prognosis in this case was better, with 10 weeks of survival from presentation. CASE PRESENTATION: A 62-year-old Japanese man was referred to our hospital with a 4-week history of dyspnea on exertion and severe pulmonary hypertension...
December 23, 2017: Journal of Medical Case Reports
Gabriela Montes-Rivera, Grissel Ríos, Luis M Vilá
Diffuse alveolar hemorrhage (DAH) is a life-threatening complication of systemic lupus erythematosus (SLE). Although infrequent, its mortality is very high. While there are no established therapeutic guidelines, DAH has been traditionally managed with high-dose intravenous (IV) corticosteroids, cyclophosphamide, and plasma exchange. The efficacy of alternative therapies such as rituximab has been described only in a few cases. Herein, we report a 25-year-old Hispanic man who presented with acute-onset SLE manifested by polyarthralgia, nephritis, seizures, pancytopenia, severe hypocomplementemia, and elevated anti-dsDNA antibodies...
2017: Case Reports in Rheumatology
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