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necrotizing pneumonia

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https://www.readbyqxmd.com/read/29214087/invasive-nontyphoidal-salmonella-infection-in-a-patient-with-early-stage-chronic-lymphocytic-leukemia
#1
Deepika Slawek, Yanina Dubrovskaya, Eddie Louie
We describe a case of a 72-year-old man with early-stage chronic lymphocytic leukemia (CLL) who presented with invasive nontyphoidal Salmonella (iNTS) infection, necrotizing pneumonia, and chronic infection of a hilar lymph node. Infection is a major cause of death in patients with CLL. Though few cases of iNTS infection associated with CLL have been described in the literature, to our knowledge this is the first reported case of iNTS-associated necrotizing pneumonia. Immunocompromised state in patients, even with early-stage CLL, likely predisposes them to invasive infection with intracellular organisms, such as Salmonella spp...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/29187842/low-microbial-diversity-and-abnormal-microbial-succession-is-associated-with-necrotizing-enterocolitis-in-preterm-infants
#2
Priscila T Dobbler, Renato S Procianoy, Volker Mai, Rita C Silveira, Andréa L Corso, Bruna S Rojas, Luiz F W Roesch
Despite increased efforts, the diverse etiologies of Necrotizing Enterocolitis (NEC) have remained largely elusive. Clinical predictors of NEC remain ill-defined and currently lack sufficient specificity. The development of a thorough understanding of initial gut microbiota colonization pattern in preterm infants might help to improve early detection or prediction of NEC and its associated morbidities. Here we compared the fecal microbiota successions, microbial diversity, abundance and structure of newborns that developed NEC with preterm controls...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29169658/-symmetrical-peripheral-gangrene-4%C3%A2-cases
#3
F Smaoui, M Koubaa, K Rekik, Y Mejdoub, S Mezghani, I Maaloul, A Hammami, C Marrakchi, M Ben Jemaa
BACKGROUND: Symmetric peripheral gangrene (SPG) is a symmetrical distal ischemic lesion on at least 2 or more extremities in the absence of proximal arterial obstruction and vasculitis. It is a rare and severe clinical entity. The aim of this study was to describe clinical symptoms, etiological agents and the management of SPG through a series of 4 cases. PATIENTS AND METHODS: We included all cases of SPG hospitalized between 2000 and 2014. The inclusion criterion was the presence of distal ischemic damage at two or more sites in the absence of large vessel obstruction...
November 20, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29159658/lung-necrosectomy-in-pediatric-patients-with-necrotizing-pneumonia
#4
Francina V Bolaños-Morales, Emmanuel Peña Gómez-Portugal, María E Aguilar-Mena, Patricio J Santillán-Doherty, Avelina Sotres-Vega, J Alfredo Santibáñez-Salgado
INTRODUCTION: Necrotizing pneumonia is the consolidation of lung parenchyma with destruction and necrosis, forming solitary or multiloculated radiolucent foci. When antibiotic treatment fails and clinical course does not improve, patients might need lung tissue resection: segmentectomy, lobectomy or bilobectomy. We have performed a more conservative surgical approach in pediatric patients with necrotizing pneumonia, lung necrosectomy: resection of unviable necrotic tissue, to preserve more healthy and potentially recoverable lung parenchyma...
November 20, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29139241/porcine-respiratory-disease-complex-after-the-introduction-of-h1n1-2009-influenza-virus-in-brazil
#5
R R Rech, D Gava, M C Silva, L T Fernandes, V Haach, J R Ciacci-Zanella, R Schaefer
From 2009 to 2015, 74 lungs from suckling (6.8%), nursing (70.3%), fattening (20.3%) pigs and pregnant sows (2.7%) with respiratory signs from pig farms in Southern Brazil were submitted to a diagnostic laboratory for necropsy and/or histologic examination and screening for respiratory agents by RT-qPCR, immunohistochemistry (IHC), virus isolation (VI) and subtyping for influenza A virus (IAV), IHC and nested PCR for Mycoplasma hyopneumoniae (Mhyo), PCR for porcine circovirus 2 (PCV2), RT-qPCR for porcine reproductive and respiratory syndrome virus (PRRSV) and bacterial culture...
November 14, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/29128933/proven-invasive-pulmonary-aspergillosis-in-stem-cell-transplant-recipient-due-to-aspergillus-sublatus-a-cryptic-species-of-a-nidulans
#6
Vanda Chrenkova, Vit Hubka, Petr Cetkovsky, Michal Kouba, Barbora Weinbergerova, Pavlina Lyskova, Ludmila Hornofova, Petr Hubacek
Invasive fungal disease represents one of the severe complications in haematopoietic stem cell transplant recipients. We describe a case of a patient treated for relapse of chronic lymphoblastic leukaemia 6 years after HSCT. The patient was treated for invasive pulmonary aspergillosis but died 3 months later from multiple organ failures consisting of haemorrhagic necrotizing fungal pneumonia, refractory chronic hepatic graft versus host disease and cytomegalovirus hepatitis. Autopsy samples revealed histopathological evidence of fungal hyphae and an unusual Aspergillus nidulans-like species was isolated in pure culture...
November 11, 2017: Mycopathologia
https://www.readbyqxmd.com/read/29116026/the-c3heb-fej-mouse-model-recapitulates-the-hallmark-of-bovine-tuberculosis-lung-lesions-following-mycobacterium-bovis-aerogenous-infection
#7
Mélodie Bouté, Florence Carreras, Christelle Rossignol, Emilie Doz, Nathalie Winter, Mathieu Epardaud
Achieving the control of bovine tuberculosis (bTB) would require the discovery of an efficient combined immunodiagnostic and vaccine strategy. Since in vivo experiments on cattle are not ethically and economically acceptable there is a need for a cost-effective animal model capable of reproducing, as closely as possible, the physiopathology of bTB to (i) better characterize the cellular and molecular features of bTB immunopathogenesis and (ii) screen preclinical vaccine candidates. To develop such a model, we focused on the C3HeB/FeJ Kramnik's mouse forming hypoxic, encapsulated granulomas with a caseous necrotic center following Mycobacterium tuberculosis infection...
November 7, 2017: Veterinary Research
https://www.readbyqxmd.com/read/29108905/-maternal-deaths-due-to-infectious-cause-results-from-the-french-confidential-enquiry-into-maternal-deaths-2010-2012
#8
A Rigouzzo, V Tessier, L Zieleskiewicz
Over the period 2010-2012, maternal mortality from infectious causes accounted for 5% of maternal deaths by direct causes and 16% of maternal deaths by indirect causes. Among the 22 deaths caused by infection occurred during this period, 6 deaths were attributed to direct causes from genital tract origin, confirming thus the decrease in direct maternal deaths by infection during the last ten years. On the contrary, indirect maternal deaths by infection, from extragenital origin, doubled during the same period, with 16 deaths in the last triennium, dominated by winter respiratory infections, particularly influenza: the 2009-2010 influenza A (H1N1) virus pandemic was the leading cause of indirect maternal mortality by infection during the studied period...
November 3, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29078647/vats-and-open-chest-surgery-in-diagnosis-and-treatment-of-benign-pleural-diseases
#9
REVIEW
Periklis Perikleous, Sridhar Rathinam, David A Waller
A negative pressure normally exists between the visceral and parietal pleurae in the lungs, which can act as vacuum for fluid, air and small particles from different parts of the body, allowing them to move into the pleural space and be retained in it, thus resulting to different manifestations of pleural disorders. A pleural effusion is the result of fluid collection between the parietal and visceral pleural surfaces. The most common cause in developed countries is congestive heart failure, followed by pneumonia and malignancy...
2017: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29051525/virulence-characteristics-of-carbapenem-resistant-klebsiella-pneumoniae-strains-from-patients-with-necrotizing-skin-and-soft-tissue-infections
#10
Fiorella Krapp, Andrew R Morris, Egon A Ozer, Alan R Hauser
Two types of Klebsiella pneumoniae (KP) strains are currently emerging: hypervirulent (hvKP) strains and carbapenem-resistant (CR-KP) strains. To date, these two strain types rarely overlap. Recent reports, however, suggest that CR-KP strains are increasing in virulence. hvKP strains frequently present as highly invasive infections, such as necrotizing skin and soft tissue infections (NSSTI). To examine whether CR-KP strains with features of hvKP were present in our U.S. hospital, we retrospectively identified four cases of CR-KP NSSTI diagnosed between January 2012 and January 2016...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29048409/maternal-milk-feedings-reduce-sepsis-necrotizing-enterocolitis-and-improve-outcomes-of-premature-infants
#11
J Cortez, K Makker, D F Kraemer, J Neu, R Sharma, M L Hudak
OBJECTIVE: Human milk (donor milk (DM) and/or maternal milk (MM)) feedings protect against late onset sepsis (LOS), necrotizing enterocolitis (NEC) and death. However, DM lacks many anti-infective components of MM. Therefore, we studied exclusive MM feedings to evaluate the full effect of human milk on infectious and other outcomes in premature infants. STUDY DESIGN: All infants born before 33 weeks postmenstrual age (PMA) who received exclusive (>95%) MM or exclusive preterm formula (PF) were included in this prospective investigation...
October 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29043687/-pleural-cavity-concerns
#12
I Simal, M A García-Casillas, J Cerdà, L Pérez, B Fernández, M De la Torre, M Fanjul, E Molina, J C De Agustín
INTRODUCTION: Persistent air leak (PAL) is a common problem. We asses our experience in the management of these patients. MATERIAL AND METHODS: Retrospective review of patients with chest tubes after bronchopulmonary pneumothorax (due to lung resections, spontaneous pneumothorax, necrotizing pneumonia) from 2010 to 2015. We studied clinical data, PAL incidence, risk factors and treatment, considering PAL ≥ 5 days. RESULTS: Thirty-seven cases (28 patients) between 0-16years: 26 lung resections, 11 pneumothorax...
July 20, 2017: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/29026982/severe-hemoptysis-associated-with-bacterial-pulmonary-infection-clinical-features-significance-of-parenchymal-necrosis-and-outcome
#13
Guillaume Carteaux, Damien Contou, Guillaume Voiriot, Antoine Khalil, Marie-France Carette, Martine Antoine, Antoine Parrot, Muriel Fartoukh
PURPOSE: Severe hemoptysis (SH) associated with non-tuberculosis bacterial lower respiratory tract infection (LRTI) is poorly described, and the efficacy of the usual decision-making process is unknown. This study aimed at describing the clinical, radiological patterns, mechanism, and microbiological spectrum of SH related to bacterial LRTI, and assessing whether the severity of hemoptysis and the results of usual therapeutic strategy are influenced by the presence of parenchymal necrosis...
October 12, 2017: Lung
https://www.readbyqxmd.com/read/29024796/comparative-analysis-of-clinics-pathologies-and-immune-responses-in-balb-c-and-c57bl-6-mice-infected-with-streptobacillus-moniliformis
#14
Juliane Fornefett, Jaqueline Krause, Kristin Klose, Felix Fingas, Rayk Hassert, Tobias Eisenberg, Wieland Schrödl, Thomas Grunwald, Uwe Müller, Christoph G Baums
Streptobacillus (S.) moniliformis is a rat-associated zoonotic pathogen that occasionally causes disease in other species. We investigated the working hypothesis that intranasal infection might lead to different immune responses in C57BL/6 and BALB/c mice associated with distinct pathologies. This study confirmed with 75% mortality the known high susceptibility of C57BL/6 mice to Streptobacillus moniliformis infection in comparison to BALB/c mice which did not develop signs of disease. Main pathologies in C57BL/6 mice were purulent to necrotizing lymphadenitis and pneumonia...
October 10, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28979009/scrub-typhus-an-emerging-threat
#15
Sayantani Chakraborty, Nilendu Sarma
Scrub typhus is caused by Orientia tsutsugamushi (formerly Rickettsia) and is transmitted to humans by an arthropod vector of the Trombiculidae family (Leptotrombidium deliense and L. akamushi). It is the most common re-emerging Rickettsial infection in India and many other South East Asian countries. In fact, scrub typhus is confined geographically to the Asia Pacific region, a billion people are at risk and nearly a million cases are reported every year. Scrub typhus appears particularly to be distributed in the tsutsugamushi triangle which is distributed over a very wide area of 13 million km(2) bound by Japan in the east, through China, the Philippines, tropical Australia in the south, and west through India, Pakistan, possibly to Tibet to Afghanistan, and southern parts of the USSR in the north...
September 2017: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/28978355/spondylodiskitis-and-endocarditis-due-to-streptococcus-gordonii
#16
Ziv Dadon, Assaf Cohen, Yael M Szterenlicht, Marc V Assous, Yair Barzilay, David Raveh-Brawer, Amos M Yinnon, Gabriel Munter
BACKGROUND: Streptococcus gordonii is an infrequent cause of infective endocarditis (IE); associated spondylodiskitis has not yet been described in the literature. PURPOSE: We describe 2 patients who presented with new-onset, severe back pain; blood cultures revealed S. gordonii bacteremia, which led to the diagnosis of spondylodiskitis and IE. We review our 2-decade experience with S. gordonii bacteremia to describe the clinical and epidemiological characteristics of these patients...
October 4, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28970175/bacterial-pcr-and-clinico-pathological-diagnosis-of-naturally-occurring-pneumonic-pasturellosis-mannheimiosis-during-subtropical-climate-in-sheep
#17
Riaz Hussain, Fazal Mahmood, Hafiz Muhammad Ali, Abu Baker Siddique
Mannheimia haemolytica is causative agent of pneumonic pasteurellosis (mannheimiosis) that causes huge economic losses to livestock farmers. We investigated the microbial and clinico-pathological patterns associated with ovine pneumonic pasturellosis during an outbreak. Prior to death, infected sheep revealed clinical signs including dyspnoea, salivation, pyrexia and mucopurulent nasal discharge. Mortality was significantly (p < 0.05) high in young sheep as compared to adults. Necropsy findings revealed presence of froth in trachea, congestion and consolidation of lungs, pulmonary edema, severe pleural adhesions, pericarditis, hemorrhages on mucosa of jejunum and kidneys...
September 29, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28935494/-an-atypical-case-of-necrotizing-staphylococcal-pneumonia
#18
E Bertreau, S Grard, T Baudry, N Freymond
INTRODUCTION: Some strains of Staphylococcus aureus produce a toxin known as Panton-Valentine leukocidin. These strains notably cause a necrotizing pneumonia which is associated with a high mortality. OBSERVATION: A 70-year-old woman presented with sub-acute onset dyspnea, low-grade fever, and hemoptysis after a trip to Dubai and New Zealand. Computed tomography showed bilateral necrotizing pneumonia, suggesting the diagnosis of pneumonia caused by S. aureus producing Panton-Valentine toxin...
September 18, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28918242/predictive-value-of-thomsen-friedenreich-antigen-activation-for-streptococcus-pneumoniae-infection-and-severity-in-pediatric-lobar-pneumonia
#19
Chia-Jung Chang, Nan-Chang Chiu, Fu-Yuan Huang, Daniel Tsung-Ning Huang, Lung Chang, Ching-Ying Huang, Yen-Hsin Kung, Hsin Chi
BACKGROUND: Most cases of complicated pneumonia in children are caused by pneumococcal infections. Thomsen-Friedenreich antigen (TA) is present on erythrocytes, platelets and glomeruli, and it can be activated during pneumococcal infection. The aim of this study was to investigate the predictive value of TA activation for pneumococcal infection and association with the severity of complicated pneumonia. MATERIALS AND METHODS: Patients with lobar pneumonia were routinely tested for TA at the Department of Pediatrics, Mackay Memorial Hospital from January 2010 to December 2015...
September 2, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28901208/outcomes-of-critically-ill-patients-who-have-serotype-5-invasive-pneumococcal-disease
#20
Joanna H Zurawska, Marc G Romney, Hubert Wong, Hong Wang, Najib T Ayas, Linda M N Hoang, Aleksandra Stefanovic, Patrick Doyle, Vinay Dhingra, Peter M Dodek
PURPOSE: To determine whether invasive pneumococcal disease (IPD) due to serotype 5, which occurred as a local outbreak in 2006 to 2007, is associated with intensive care unit (ICU) admission, hospital mortality, or organ supports in those who are critically ill. MATERIALS AND METHODS: Retrospective review of patients who presented with IPD to 2 tertiary hospitals in Vancouver, Canada, from July 2004 to June 2007. We compared patient characteristics, interventions, and outcomes between patients who had serotype 5 and other serotypes using bivariate and multivariate analyses...
January 1, 2017: Journal of Intensive Care Medicine
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