Read by QxMD icon Read

necrotizing pneumonia

Arzu Karlı, Nurşen Belet, Keramettin Yanık, Özlem Köken, Mesut Kılıç, Meltem Ceyhan Bilgici, Gülnar Şensoy
Staphylococcus aureus is a common cause of musculoskeletal infections. Panton-Valentine leukocidin (PVL) is an exotoxin produced by S. aureus and is an important virulence factor. PVL-positive S. aureus infections have been associated with soft tissue infections and necrotizing pneumonia. In this case report, the clinical course of a 13-year-old boy who was admitted with right hip pain and fever, diagnosed with a gluteal abscess and incidentally discovered multiple cavitary pulmonary lesions, and had a methicillin susceptible and PVL-producing S...
November 2015: Turkish Journal of Pediatrics
N S Harsha, H S Sandeepa, S Hemantha Kumar, B Prakash, K Jayalakshmi
Radiographic findings of thick walled cavities in the lungs are typically seen in mycobacterial infections, malignant lesions, fungal infections, pulmonary vasculitis or other inflammatory lesions of the lungs. Necrotizing infections of the lungs caused by gram negative bacteria (Klebsiella, Psudomonas, Legionella) and Staphylococcus aureus may also form cavities of varying thickness, with consolidation. Escherichia coli pneumonia causing pulmonary cavities is very rare and the few cases reported are of pneumatocele formation...
2016: Respiratory Medicine Case Reports
Kamonpun Ussavarungsi, Ryan M Kern, Anja C Roden, Jay H Ryu, Eric S Edell
BACKGROUND: Diagnostic evaluation of patients with diffuse parenchymal lung disease (DPLD) is best achieved by a multidisciplinary team correlating clinical, radiologic, and pathologic features. Surgical lung biopsies remain the gold standard for histopathologic diagnosis of idiopathic interstitial pneumonias. Emerging data suggest an increasing role for transbronchial cryobiopsy (TBC) in DPLD evaluation. We describe our experience with TBC in patients with DPLD. METHODS: We retrospectively reviewed medical records of patients with radiographic features of DPLD who underwent TBC at Mayo Clinic, Rochester, Minnesota in June 2013-September 2015...
September 19, 2016: Chest
T-T Yang, Y-C Chen
No abstract text is available yet for this article.
September 21, 2016: QJM: Monthly Journal of the Association of Physicians
Chia-Hung Yo, Meng-Tse Gabriel Lee, Yenh-Chen Hsein, Chien-Chang Lee
OBJECTIVE: There is limited research on afebrile bacteremia. We aimed to compare the risk factors and outcomes of patients with afebrile and febrile infections. METHODS: This was a retrospective cohort study of bloodstream isolates from 994 adults admitted to the emergency department of a university hospital. Afebrile infections, defined as the absence of fever history or measured fever through the emergency department course, was compared with febrile infection...
August 26, 2016: Diagnostic Microbiology and Infectious Disease
Michael I Gabrilovich, Matthew D Huff, Susan M McMillen, Carol Quinter
No abstract text is available yet for this article.
September 14, 2016: Journal of Bronchology & Interventional Pulmonology
M Tetart, V Trosini-Désert, A Fekkar, C Chenivesse
INTRODUCTION: We report a case of pneumonia associated with necrotic mediastinal lymph nodes in an immunocompetent patient. The case report illustrates the difficulties in making a diagnosis in necrotic mediastinal lymph nodes and discusses strategies to optimize sampling. OBSERVATION: A 21-year-old immunocompetent woman was admitted to hospital with dyspnea and fever occurring ten days after delivery. Physical examination, biological results and chest X-ray led to the diagnosis of right upper lobe pneumonia...
September 9, 2016: Revue des Maladies Respiratoires
D Sousa, J M Bravo-Ferrer, T Seoane-Pillado, P Vázquez-Rodríguez, L Ramos-Merino, J M Gutiérrez-Urbón, S Pita, P Llinares
OBJECTIVE: The clinical response to ertapenem in community-acquired pneumonia (CAP) at the setting of routine hospital practice has been scarcely evaluated. METHODS: We retrospectively compared CAP cases treated with ertapenem or with other standard antimicrobials (controls) at a tertiary 1,434-bed center from 2005 to 2014. RESULTS: Out of 6,145 patients hospitalized with CAP, 64 (1%) ertapenem-treated and 128 controls were studied (PSI IV-V 72%, mean age 73 years...
October 2016: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
Deepak Sharma, Sweta Shastri, Pradeep Sharma
BACKGROUND: Lactoferrin (LF) is present in breast milk and have numerous properties including antimicrobial, antiviral, anti-fungal, and anti-cancer. Recent studies have emphasized the role of LF in neonatal care Aims and objective: To evaluate the various roles of Lactoferrin in Neonatal care in preterm infants. SEARCH METHODS: The literature search was done for this systematic review by searching the electronic data base namely Cochrane Central Register of Controlled Trials (CENTRAL), PubMed, EMBASE, Web of Science, Scopus, Index Copernicus, African Index Medicus (AIM), Thomson Reuters (ESCI), Chemical Abstracts Service (CAS), SCIWIN (Scientific World Index), Google Scholar, Latin American and Caribbean Health Sciences Information System (LILACS), Index Medicus for the Eastern Mediterranean Region (IMEMR), Index Medicus for the South-East Asian Region (IMSEAR), Western Pacific Region Index Medicus (WPRIM), various sites for ongoing trials namely clinical trial registry ( www...
September 4, 2016: Journal of Maternal-fetal & Neonatal Medicine
Riad Khatib, Mamta Sharma, Leonard B Johnson, Kathleen Riederer, Laurence Briski
Staphylococcus aureus bacteremia (SAB) is usually monomicrobial (M-SAB). We reviewed SAB in adults (≥18years old) over a 13year-period and compared polymicrobial (P-SAB) and M-SAB. We encountered 93 P-SAB among 1537 SAB cases (6.1%). The source distribution was comparable; however, source-specified differences were apparent. P-SAB was noted in 12/58 (20.7%) necrotizing soft tissue infections/sacral decubiti and foot gangrene vs. 1/122 (0.8%) cellulitis/abscesses (P<0.001), in 7/64 (10.9%) femoral intravascular catheters (IVC) vs...
November 2016: Diagnostic Microbiology and Infectious Disease
John C Gomez, Hong Dang, Jessica R Martin, Claire M Doerschuk
Nrf2 regulates the transcriptional response to oxidative stress. These studies tested the role of Nrf2 during Streptococcus pneumoniae pneumonia and identified Nrf2-dependent genes and pathways in lung tissue and in recruited neutrophils. Nrf2 null and wild type (WT) mice were studied at 6 and 24 h after instillation of S. pneumoniae or PBS. At 6 h, fewer neutrophils were recruited and the number of bacteria remaining in the lungs tended to be less (p = 0.06) in the Nrf2 null compared with WT mice. In uninfected lungs, 53 genes were already differentially expressed in Nrf2 null compared with WT mouse lungs, and gene sets involved in phagocytosis, Fc receptor function, complement, and Ig regulation are enhanced in PBS-treated Nrf2 null gene profiles compared with those of WT mice...
October 1, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
Mohammad Moshiri, Fatemeh Hamid, Leila Etemad
Seeds of the castor bean plant Ricinuscommunis L (CB) contain ricin toxin (RT), one of the most poisonous naturally-occurring substances known. Ricin toxin, a water-soluble glycoprotein that does not partition into the oil extract, is a ribosome-inactivating toxin composed of two chains, labeled A and B. Severity of the toxicity varies depending on the route of exposure to the toxin. Inhalational is the most toxic route, followed by oral ingestion. Orally-ingested RT accumulates in the liver and spleen but other cells are also affected...
April 2016: Reports of Biochemistry & Molecular Biology
Binh An Diep, Vien T M Le, Zehra C Visram, Harald Rouha, Lukas Stulik, Etyene Castro Dip, Gábor Nagy, Eszter Nagy
Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA), especially the USA300 pulsotype, is a frequent cause of skin and soft tissue infections and severe pneumonia. Despite appropriate antibiotic treatment, complications are common and pneumonia is associated with high mortality. S. aureus strains express multiple cytotoxins, including alpha-hemolysin (Hla) and up to five bicomponent leukocidins that specifically target phagocytic cells for lysis. CA-MRSA USA300 strains carry the genes for all six cytotoxins...
October 2016: Antimicrobial Agents and Chemotherapy
Keer Sun, Vijaya Kumar Yajjala, Christopher Bauer, Geoffrey A Talmon, Karl J Fischer, Tammy Kielian, Dennis W Metzger
Clinical post-influenza Staphylococcus aureus pneumonia is characterized by extensive lung inflammation associated with severe morbidity and mortality even after appropriate antibiotic treatment. In this study, we show that antibiotics rescue nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 2 (Nox2)-deficient mice but fail to fully protect WT animals from influenza and S. aureus coinfection. Further experiments indicate that the inefficacy of antibiotics against coinfection is attributable to oxidative stress-associated inflammatory lung injury...
August 22, 2016: Journal of Experimental Medicine
Chandra Rath, Pradeep Suryawanshi
Context: Knowledge and skills of heart, head, lung, gut and basic abdominal ultrasound is of immense utility to clinicians in their day-to-day patient management, and in acute events, in the absence of specialist service back-up. This review examines the potential role of clinician-performed ultrasound in the neonatal intensive care unit. Evidence Acquisition: The bibliographic search of English-language literature was performed electronically using PubMed and EMBASE databases for the different topics we have covered under this review...
June 1, 2016: Indian Pediatrics
Danyal Thaver, Mirza Beg
Crohn's disease (CD) is an autoimmune inflammatory disorder that primarily affects the gastrointestinal tract. It may have pulmonary involvement, which has been rarely reported in pediatric patients. Down syndrome (DS) has been associated with increased frequency of autoimmune diseases. However, associations between CD and DS have been rarely reported. We present the case of a 5-year-old girl with known DS and a history of chronic intermittent abdominal pain who presented with persistent pneumonia. Her workup included a chest computed tomography (CT) scan that showed multiple noncalcified pulmonary nodules...
May 2016: Case Reports in Gastroenterology
Kilian Brown, Ben Dunne, Marino Festa, Erik La Hei, Jonathan Karpelowsky, Hayden Dando, Yishay Orr
There is minimal reported experience with long-range retrieval of pediatric patients receiving extracorporeal membrane oxygenation (ECMO) support. We report the case of a 10-month old boy with necrotizing staphylococcal pneumonia complicated by a bronchopleural fistula, who was successfully retrieved and transported while receiving ECMO to our unit in Sydney, Australia, from a referring hospital 2,000 kilometers away in the Pacific Islands. He was successfully weaned from ECMO to receive single-lung ventilation after 13 days, and he underwent surgical repair of his bronchopleural fistula through a thoracotomy 3 days after decannulation...
August 2016: Annals of Thoracic Surgery
Cecilia Mouronte-Roibás, Virginia Leiro-Fernández, Maribel Botana-Rial, Cristina Ramos-Hernández, Guillermo Lago-Preciado, Concepción Fiaño-Valverde, Alberto Fernández-Villar
Mucormycosis due to Lichtheimia ramosa is an infrequent opportunistic infection that can potentially be angioinvasive when affecting inmunocompromised hosts. We present a fatal case of mucormycosis, affecting a 56-year-old male with diabetes mellitus and siderosis, initially admitted to our hospital due to an H1N1 infection. The subject's clinical condition worsened and he finally died because of a necrotizing bilateral pneumonia with disseminated mycotic thromboses due to Lichtheimia ramosa, which is an emerging Mucoralean fungus...
2016: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
Jun-Hyung Lee, Jin-Soo Hyun, Da-Yeong Kang, Hee-Jeong Lee, Sang-Gon Park
BACKGROUND: Mucormycosis is a rare and life-threatening invasive fungal infection. Pulmonary mucormycosis commonly occurs in patients with severe neutropenia. Typically, pulmonary mucormycosis causes tissue necrosis resulting from angioinvasion and subsequent thrombosis, so most cases can occur with necrotizing pneumonia and/or hemoptysis. Some complex cases may invade adjacent organs, such as the mediastinum, pericardium, and chest wall. However, to the best our knowledge there is little known regarding bronchoesophageal fistula due to pulmonary mucormycosis after induction chemotherapy for acute myeloid leukemia...
2016: Journal of Medical Case Reports
Azad Singh, Aschalew Z Bekele, Devi P Patnayak, Naresh Jindal, Robert E Porter, Sunil K Mor, Sagar M Goyal
From 2008 to 2012, 4 separate cases of quail bronchitis virus infection were seen in bobwhite quail (Colinus virginianus) raised in Minnesota. The quail chicks ranged in age from 5 d to 8 wk and suffered from respiratory distress and elevated mortality. On necropsy, gross lesions consisted of mucus in trachea, congested lungs, caseous air sacculitis, accumulation of chalky white urates on internal organs, necrotic foci in liver, and enlarged spleen. Histologic examination revealed fibrinoheterophilic rhinitis, heterophilic bronchitis, heterophilic tracheitis, and interstitial pneumonia in addition to deciliation, desquamation, and necrosis of bronchial respiratory epithelium...
July 14, 2016: Poultry Science
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"