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https://www.readbyqxmd.com/read/28924110/bloody-bronchial-cast-formation-due-to-alveolar-hemorrhage-associated-with-h1n1-influenza-infection
#1
Yohei Okada, Asami Okada, Hiromichi Narumiya, Ryoji Iiduka, Kanade Katsura
A previously healthy 55-year-old man with H1N1 influenza A presented with severe respiratory failure and cardiac arrest. Following the return of spontaneous circulation, venovenous extracorporeal membrane oxygenation was required to maintain oxygenation. On day 2, bronchoscopy revealed a bloody bronchial cast obstructing the right main bronchus. A pathological examination revealed that it was composed of intrabronchial and intra-alveolar hemorrhagic tissue. Unfortunately, the patient died due to severe brain ischemia; a subsequent autopsy revealed marked alveolar hemorrhage...
September 15, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28886329/a-case-of-igg4-related-retroperitoneal-fibrosis-with-multiple-involvement
#2
Y-K Zheng, N-Y Gu, J Wu, X Fang, C Zhang, Q-Y Li
To increase awareness of IgG4-related retroperitoneal fibrosis (IgG4-RRPF) and reduce clinical misdiagnosis. We report a 79-year-old man with multiple organs involvement of IgG4-RRPF, who developed right lower extremity edema, hemoptysis and fever. The abdomen computed tomography (CT) scan image showed lymph nodes enlargement. The positron emission tomography/CT scan image showed pancreatic malignancy with multiple nodal lymph node metastasis, lung fibroblast proliferation, and right lung apex bullae. The chest CT scan image showed pulmonary multiple lymph nodes with calcification in the mediastinum...
August 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28885371/clinical-and-diagnostic-features-of-angiosarcoma-with-pulmonary-metastases-a-retrospective-observational-study
#3
Hanping Wang, Juhong Shi, Hongrui Liu, Yeye Chen, Yining Wang, Wenze Wang, Li Zhang
Angiosarcoma with pulmonary metastasis is a rare, fatal disease that often presents with multiple pulmonary nodules and diffuse alveolar hemorrhage. We herein review the detailed clinical characteristics of pulmonary metastatic angiosarcoma and determine a reasonable diagnostic strategy.The medical records of 11 patients with pulmonary angiosarcoma were reviewed.The mean age of the patients was 45.7 years (range, 30-71 years). All patients were male. The most common symptom was hemoptysis (8/11). Common initial misdiagnoses were tuberculosis (5/11), vasculitis (2/11), nontuberculous infectious disease (1/11), and constrictive pericarditis (1/11)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28883249/pneumonitis-with-diffuse-alveolar-hemorrhage-induced-by-sho-seiryu-to
#4
Kazuo Tsuchiya, Mikio Toyoshima, Takafumi Suda
A 78-year-old man presented with acute-onset fever and dyspnea. He had been taking Sho-seiryu-to for allergic rhinitis. A chest radiograph showed diffuse bilateral ground-glass opacities with subpleural sparing, crazy-paving pattern, and traction bronchiectasis. The patient's bronchoalveolar lavage fluid was bloody and transbronchial lung biopsy specimens showed alveolitis, organizing pneumonia, and type 2 alveolar epithelial cell proliferation. There were no clinical and laboratory findings suggestive of respiratory tract infection or connective tissue disease...
September 6, 2017: Internal Medicine
https://www.readbyqxmd.com/read/28879449/prognostic-factors-of-mortality-in-iranian-patients-with-systemic-lupus-erythematosus-admitted-to-intensive-care-unit
#5
Alimohammad Fatemi, Somayeh Shamsaee, Ahmad Raeisi, Zahra Sayedbonakdar, Abbas Smiley
The aim was to determine the course, outcome, and determinants of mortality in patients with systemic lupus erythematosus (SLE) in intensive care unit (ICU). SLE patients admitted to ICU from 2004 to 2015 were recruited retrospectively. Demographic data, disease characteristics, causes of admission, baseline SLE disease activity index-2K (SLEDAI-2K) and Acute Physiologic and Chronic Health Evaluation II (APACHE) score, the outcome, and the causes of death were recorded. Predictors of mortality were compared between alive and dead patients by Cox regression analysis...
September 6, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28855278/exosomes-in-postshock-mesenteric-lymph-are-key-mediators-of-acute-lung-injury-triggering-the-macrophage-activation-via-toll-like-receptor-4
#6
Mitsuaki Kojima, Joao A Gimenes-Junior, Theresa W Chan, Brian P Eliceiri, Andrew Baird, Todd W Costantini, Raul Coimbra
Acute lung injury (ALI) is a common cause of morbidity in patients after severe injury due to dysregulated inflammation, which is believed to be driven by gut-derived inflammatory mediators carried via mesenteric lymph (ML). We have previously demonstrated that nano-sized extracellular vesicles, called exosomes, secreted into ML after trauma/hemorrhagic shock (T/HS) have the potential to activate immune cells in vitro Here, we assess the function of ML exosomes in the development of T/HS-induced ALI and the role of TLR4 in the ML exosome-mediated inflammatory response...
August 29, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28830981/nfib-hemizygous-mice-are-protected-from-hyperoxic-lung-injury-and-death
#7
Vasantha H S Kumar, Joseph Chaker El Khoury, Richard Gronostajski, Huamei Wang, Lori Nielsen, Rita M Ryan
Nuclear Factor I (Nfi) genes encode transcription factors essential for the development of organ systems including the lung. Nfib null mice die at birth with immature lungs. Nfib hemizygous mice have reduced lung maturation with decreased survival. We therefore hypothesized that these mice would be more sensitive to lung injury and would have lower survival to hyperoxia. Adult Nfib hemizygous mice and their wild-type (Wt) littermates were exposed to 100% O2 for 89, 80, 72 and 66 h for survival studies with lung outcome measurements at 66 h...
August 2017: Physiological Reports
https://www.readbyqxmd.com/read/28814761/transplantation-of-bioengineered-rat-lungs-recellularized-with-endothelial-and-adipose-derived-stromal-cells
#8
Ryoichiro Doi, Tomoshi Tsuchiya, Norisato Mitsutake, Satoshi Nishimura, Mutsumi Matsuu-Matsuyama, Yuka Nakazawa, Tomoo Ogi, Sadanori Akita, Hiroshi Yukawa, Yoshinobu Baba, Naoya Yamasaki, Keitaro Matsumoto, Takuro Miyazaki, Ryotaro Kamohara, Go Hatachi, Hideyori Sengyoku, Hironosuke Watanabe, Tomohiro Obata, Laura E Niklason, Takeshi Nagayasu
Bioengineered lungs consisting of a decellularized lung scaffold that is repopulated with a patient's own cells could provide desperately needed donor organs in the future. This approach has been tested in rats, and has been partially explored in porcine and human lungs. However, existing bioengineered lungs are fragile, in part because of their immature vascular structure. Herein, we report the application of adipose-derived stem/stromal cells (ASCs) for engineering the pulmonary vasculature in a decellularized rat lung scaffold...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28801344/frontline-science-macrophage-derived-exosomes-promote-neutrophil-necroptosis-following-hemorrhagic-shock
#9
Yang Jiao, Zhigang Li, Patricia A Loughran, Erica K Fan, Melanie J Scott, Yuehua Li, Timothy R Billiar, Mark A Wilson, Xueyin Shi, Jie Fan
Hemorrhagic shock (HS) renders patients susceptible to development of systemic inflammatory response syndrome (SIRS) and multiple organ dysfunction syndrome (MODS) through mechanisms that are, as yet, unclear. Cell necroptosis, a form of regulated inflammatory cell death, is one of the mechanisms that controls cell release of inflammatory mediators from innate immune cells, such as polymorphonuclear neutrophils (PMNs), and critically regulates the progress of inflammation. In this study, we investigated the mechanisms of alveolar macrophage (AMϕ) effects on PMN necroptosis following HS...
August 11, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/28765242/pulmonary-involvement-in-antineutrophil-cytoplasmic-antibodies-anca-associated-vasculitis-the-influence-of-anca-subtype
#10
Aladdin J Mohammad, Kristian H Mortensen, Judith Babar, Rona Smith, Rachel B Jones, Daiki Nakagomi, Pasupathy Sivasothy, David R W Jayne
OBJECTIVE: To describe pulmonary involvement at time of diagnosis in antineutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV), as defined by computed tomography (CT). METHODS: Patients with thoracic CT performed on or after the onset of AAV (n = 140; 75 women; granulomatosis with polyangiitis, n = 79; microscopic polyangiitis MPA, n = 61) followed at a tertiary referral center vasculitis clinic were studied. Radiological patterns of pulmonary involvement were evaluated from the CT studies using a predefined protocol, and compared to proteinase 3 (PR3)-ANCA and myeloperoxidase (MPO)-ANCA specificity...
August 1, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28762333/risk-factors-for-hemoptysis-complicating-17-18-gauge-ct-guided-transthoracic-needle-core-biopsy-multivariate-analysis-of-249-procedures
#11
Guillaume Chassagnon, Jules Gregory, Marc Al Ahmar, Pierre Magdeleinat, Paul Legmann, Joel Coste, Marie Pierre Revel
PURPOSE: We aimed to identify modifiable and nonmodifiable risk factors for hemoptysis complicating computed tomography (CT)-guided transthoracic needle biopsy. METHODS: All procedures performed in our institution from November 2013 to May 2015 were reviewed. Hemoptysis was classified as mild if limited to hemoptoic sputum and abundant otherwise. Presence of intra-alveolar hemorrhage on postbiopsy CT images was also evaluated. Patient- and lesion-related variables were considered nonmodifiable, while procedure-related variables were considered modifiable...
September 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28752492/pulmonary-involvement-in-systemic-vasculitis
#12
REVIEW
Luis Felipe Flores-Suárez, Marco A Alba, Heidegger Mateos-Toledo, Natllely Ruiz
PURPOSE OF REVIEW: The purpose of this study is to describe the most relevant advances concerning lung involvement in the ANCA-associated vasculitides (excluding eosinophilic granulomatosis with polyangiitis which may have different disease mechanisms). Focus is on pathophysiology, recent important imagenological procedures, treatment, and outcome. RECENT FINDINGS: Emerging information exists on potential newly investigated diagnostic procedures (v.g. transbronchial cryobiopsies), detailed tomographic abnormalities, the potential favorable role of rituximab and the still uncertain one of plasma exchange in the treatment, and the increasing description of interstitial lung disease...
September 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28741986/serum-ferritin-as-an-activity-marker-for-granulamotosis-with-polyangiitis
#13
Hamit Kucuk, Ozkan Varan, Berna Goker, Berivan Bitik, Mehmet Akif Ozturk, Seminur Haznedaroglu, Abdurrahman Tufan
BACKGROUND: Serum ferritin correlates well with the activities of systemic lupus erythematosus (SLE) and dermatomyositis, but it has not been previously studied in patients with vasculitis. METHODS: Medical records of granulomatosis with polyangiitis (GPA, Wegener's granulomatosis) patients with at least six months of regular follow-up were evaluated. The activity of GPA was assessed with Birmingham Vasculitis Activity Score for Wegener's Granulomatosis (BVAS/WG)...
November 2017: Renal Failure
https://www.readbyqxmd.com/read/28732837/immune-diffuse-alveolar-hemorrhage-clinical-presentation-and-outcome
#14
Silvia Quadrelli, Diana Dubinsky, Marco Solis, Demelza Yucra, Marcos Hernández, Hugo Karlen, Alejandro Brigante
BACKGROUND: Diffuse alveolar haemorrhage (DAH) is a manifestation of several immune and nonimmune diseases. OBJECTIVE: The objective of this study was to characterize the clinical characteristics and short-term outcomes of patients with immune-mediated DAH requiring hospital admission. METHODS: A retrospective study from December 2010 to December 2015, was conducted by analyzing the clinical records of 39 patients with DAH with a proven immunological origin...
August 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28732053/dysregulation-of-pulmonary-endothelial-protein-c-receptor-and-thrombomodulin-in-severe-falciparum-malaria-associated-ards-relevant-to-hemozoin
#15
Sitang Maknitikul, Natthanej Luplertlop, Georges E R Grau, Sumate Ampawong
To investigate the role of the protein C system, endothelial protein C receptor (EPCR) and thrombomodulin (TM) in the pathogenesis of malaria-associated acute respiratory distress syndrome (ARDS) in relation to hemozoin and proinflammatory cytokines-induced type II pneumocyte injury and -aggravated pulmonary resolution. A total of 29 left-over lung specimens that were obtained from patients who died from severe falciparum malaria were examined. Histopathological, immunohistochemical and electron microscopic analyses revealed that ARDS coexisted with pulmonary edema and systemic bleeding; the severity was dependent on the level of hemozoin deposition in the lung and internal alveolar hemorrhaging...
2017: PloS One
https://www.readbyqxmd.com/read/28730738/the-effects-of-aspirated-thickened-water-on-survival-and-pulmonary-injury-in-a-rabbit-model
#16
Nogah Nativ-Zeltzer, Maggie A Kuhn, Denise M Imai, Ryan P Traslavina, Amanda S Domer, Juliana K Litts, Brett Adams, Peter C Belafsky
OBJECTIVES/HYPOTHESIS: Liquid thickeners are one of the most frequently utilized treatment strategies for persons with oropharyngeal swallowing dysfunction. The effect of commercially available thickeners on lung injury is uncertain. The purpose of this study was to compare the effects of aspiration of water alone, xanthan gum (XG)-thickened water, and cornstarch (CS)-thickened water on survival and lung morphology in a rabbit model. STUDY DESIGN: Animal model. Prospective small animal clinical trial...
July 21, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28717296/surgical-management-of-laterognathia-in-orthofacial-surgery
#17
J M García Y Sánchez, C L Gómez Rodríguez, J Romero Flores
INTRODUCTION: Each year around the world, various surgical procedures are carried out with the goal of correcting laterognathia; both the intraoral vertical ramus osteotomy (IVRO) and bilateral sagittal split ramus osteotomy (OSB) have been the most used techniques in mandibular surgery. These techniques have advantages and disadvantages; for example the advantages of the OSB include: increased coefficient of friction between bony segments, for both the forward and the retroposition, as well as decrease in the time of intermaxillary fixation (IMF)...
September 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28700441/leiomyoma-with-bizarre-nuclei-clinical-and-pathologic-features-of-30-patients
#18
Mehmet Kefeli, Sultan Caliskan, Emel Kurtoglu, Levent Yildiz, Arif Kokcu
Leiomyoma with bizarre nuclei (LBN) have significant cytologic atypia, but high mitotic rate and tumor cell necrosis are absent. Although it is a benign leiomyoma variant, recurrent cases have been described. In this study, we investigated the clinical and pathologic features of LBN and compared them with related studies. A total of 30 patients diagnosed with LBN in our department were included in this study. In all cases, clinical data (age, complaint, surgery type), macroscopic features (size, location, number of leiomyomas, necrosis, and hemorrhage), microscopic features (bizarre cell distribution, bizarre cell density, cellularity, mitotic rate, tumor margin, necrosis, nuclear pseudoinclusions, karyorrhectic nuclei, prominent eosinophilic nucleoli with perinucleolar clearing, cytoplasmic eosinophilic inclusions, staghorn vessels, and alveolar-type edema), and follow-up data (recurrence and survival period) were evaluated...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28690548/optimization-of-variable-ventilation-for-physiology-immune-response-and-surfactant-enhancement-in-preterm-lambs
#19
Erzsébet Bartolák-Suki, Peter B Noble, Samer Bou Jawde, Jane J Pillow, Béla Suki
Preterm infants often require mechanical ventilation due to lung immaturity including reduced or abnormal surfactant. Since cyclic stretch with cycle-by-cycle variability is known to augment surfactant release by epithelial cells, we hypothesized that such in vivo mechanotransduction improves surfactant maturation and hence lung physiology in preterm subjects. We thus tested whether breath-by-breath variability in tidal volume (VT) in variable ventilation (VV) can be tuned for optimal performance in a preterm lamb model...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28675998/cardiovascular-and-pulmonary-manifestations-of-systemic-lupus-erythematosus
#20
M B Urowitz, Konstantinos Tselios
BACKGROUND: Systemic lupus erythematosus (SLE) is characterized by various clinical manifestations and immunologic abnormalities. Among clinical manifestations, cardiovascular and respiratory system involvement is increasingly recognized as critical for patients' prognosis. OBJECTIVE: Heart involvement, most commonly presents with pericarditis. However, valvular disease and less often myocarditis may be detected. METHOD: Accelerated atherosclerosis is currently considered as one of the most important co-morbidities of SLE with cardiovascular events being one of the leading causes of death at relatively young ages...
July 4, 2017: Current Rheumatology Reviews
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