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microscopic polyangiitis

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https://www.readbyqxmd.com/read/29449516/-a-case-of-a-ruptured-cerebral-aneurysm-associated-with-microscopic-polyangiitis
#1
Toshihide Takahashi, Wataru Katayama, Yuji Kujiraoka, Tetsuya Yamamoto, Akira Matsumura
CASE: A 71-year-old woman was receiving dialysis for microscopic polyangiitis(MPA). She was transported to the emergency room after developing a headache and losing consciousness. She was in a coma and had dense left paralysis. Head computed tomography(CT)showed a subarachnoid hemorrhage. Head three-dimensional CT angiography showed an aneurysm proximal to the right M2(inferior trunk), which was considered as the source of bleeding. We performed an emergency aneurysm clipping surgery...
February 2018: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29447930/linked-help-from-bacterial-proteins-drives-autoantibody-production-in-small-vessel-vasculitis
#2
David B G Oliveira
The small vessel vasculitides granulomatosis with polyangiitis (GPA) and microscopic polyangiitis are associated with autoantibodies to neutrophil cytoplasm antigens (ANCA), principally proteinase-3 (PR3) and myeloperoxidase (MPO). There is an association between GPA and nasal carriage of Staphylococcus aureus. The recent finding that S. aureus produces proteins that bind tightly to and block the function of both PR3 and MPO suggests a mechanism for ANCA formation. The bacterial protein-autoantigen conjugate is recognised by B cells with ANCA specificity, internalised, and the bacterial protein processed and presented to T cells with specificity for bacterial peptides...
March 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29419474/frequency-diagnosis-treatment-and-outcome-of-gastrointestinal-disease-in-granulomatosis-with-polyangiitis-and-microscopic-polyangiitis
#3
Per Eriksson, Mårten Segelmark, Olof Hallböök
OBJECTIVE: Involvement of the gastrointestinal (GI) tract is a rare complication of granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA). The aim was to describe frequency, diagnosis, treatment, and outcome of GI disease in a large series of patients in a single center. METHODS: A database that includes all patients with GPA and MPA diagnosed since 1997 in a defined area of southeastern Sweden as well as prevalent older cases and tertiary referral patients was screened for patients with GI disease...
February 1, 2018: Journal of Rheumatology
https://www.readbyqxmd.com/read/29409373/epidemiology-of-primary-systemic-vasculitis-in-children-a-population-based-study-from-southern-sweden
#4
M Mossberg, M Segelmark, R Kahn, M Englund, A J Mohammad
OBJECTIVES: To estimate the annual incidence rate of paediatric primary systemic vasculitis (PSV) in a defined geographical area in southern Sweden. METHODS: Potential cases of PSV [IgA vasculitis (IgAV, Henoch-Schönlein purpura), Kawasaki disease (KD), granulomatosis with polyangiitis (GPA), microscopic polyangiitis (MPA), eosinophilic granulomatosis with polyangiitis (EGPA), polyarteritis nodosa (PAN), and Takayasu's arteritis (TAK)] were identified in a comprehensive regional healthcare register...
February 7, 2018: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/29374761/borderline-positive-antineutrophil-cytoplasmic-antibodies-anca-pr3-mpo-detection-in-a-large-cohort-tertiary-center-lessons-learnt-from-a-real-life-experience
#5
Abdulla Watad, Nicola L Bragazzi, Kassem Sharif, Boris Gilburd, Yarden Yavne, Dennis McGonagle, Howard Amital, Yehuda Shoenfeld
BACKGROUND: Enzyme-linked immunosorbent assay (ELISA) and indirect immunofluorescence (IIF) are the best strategies for antineutrophil cytoplasmic antibodies (ANCA) detection. In a minority of subjects, ELISA-based ANCA testing may result in a borderline positive titre. Therefore, we assessed the clinical significance of such a result. METHODS: This is a retrospective study, which included all subjects screened for ANCA subtypes (myeloperoxidase/MPO or proteinase-3/PR3) with subsequent identification of borderline positive results, as determined by ELISA and retested using IIF...
January 29, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29374653/necrosis-of-the-gastrocnemius-muscle-in-microscopic-polyangiitis
#6
Takahiko Akagi, Hirotake Nishimura, Tomoyuki Mukai, Yoshitaka Morita
No abstract text is available yet for this article.
January 26, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29371340/the-utility-of-urinalysis-in-determining-the-risk-of-renal-relapse-in-anca-associated-vasculitis
#7
Rennie L Rhee, John C Davis, Linna Ding, Fernando C Fervenza, Gary S Hoffman, Cees G M Kallenberg, Carol A Langford, W Joseph McCune, Paul A Monach, Philip Seo, Robert Spiera, E William St Clair, Ulrich Specks, John H Stone, Peter A Merkel
BACKGROUND AND OBJECTIVES: The significance of persistent hematuria or proteinuria in patients with ANCA-associated vasculitis who are otherwise in clinical remission is unclear. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: A post hoc analysis was conducted using participants enrolled in two randomized, placebo-controlled clinical trials who had active GN due to ANCA-associated vasculitis, had positive ANCA, and achieved remission by month 6. Dipstick and microscopic urinalyses were performed at each visit...
January 25, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29366363/orbital-granulomatosis-with-polyangiitis-mimicking-igg4-related-disease-in-a-12-year-old-male
#8
Anastasia Drobysheva, Julie Fuller, Cory M Pfeifer, Dinesh Rakheja
Granulomatosis with polyangiitis is rare in children. We report a case of a 12-year-old male who presented with new symptoms of left eyelid swelling and ptosis. Magnetic resonance imaging showed an enhancing orbital mass suspicious for a neoplasm. Excisional biopsy was performed. Microscopic examination revealed fibrovascular tissue with dense collagenous fibrosis and mixed inflammatory infiltrate that included many plasma cells. Many small and medium-sized blood vessels showed granulomatous and necrotizing vasculitis with disruption of the vessel walls and fibrinoid necrosis...
January 1, 2018: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29344060/neuro-ophthalmic-presentation-of-neuro-sweet-disease
#9
Padmaja Sudhakar, Stuart Tobin, William O Connor, Sachin Kedar
Acute febrile neutrophilic dermatosis (Sweet syndrome) is a systemic inflammatory condition usually associated with autoimmune or neoplastic processes and characterised by inflammatory dermatologic lesions such as erythematous plaques and papules associated with fever and leukocytosis. Neurological and ophthalmological involvement is rare. The authors describe an unusual case of Sweet syndrome associated with microscopic polyangiitis presenting with papilloedema, anterior uveitis, and skin rash. Years later, he developed acute posterior multifocal placoid pigment epitheliopathy...
August 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29336783/bronchiectasis-is-highly-prevalent-in-anti-mpo-anca-associated-vasculitis-and-is-associated-with-a-distinct-disease-presentation
#10
Antoine Néel, Alexandra Espitia-Thibault, Pierre-Paul Arrigoni, Christelle Volteau, Marie Rimbert, Agathe Masseau, Christian Agard, Fadi Fakhouri, Renan Liberge, Mohamed Hamidou
OBJECTIVES: To assess the prevalence of bronchiectasis in a Western cohort with ANCA-positive granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA) and its correlations with disease presentation and outcome. METHODS: Retrospective study of ANCA-associated vasculitis (AAV) patients followed at Nantes University Hospital (2005-2015). Clinical, biological, and follow-up data were collected through chart review. Two experienced radiologists blinded to the clinical data interpreted chest high-resolution CTs according to the Feischner Society criteria...
December 7, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29328034/characteristics-of-articular-syndrome-in-systemic-vasculitis
#11
O Syniachenko, O Khaniukov, Ye Yehudina, H Taktashov, K Gashynova
The purpose of the study - investigation the separate joint lesion in systemic vasculitis, their X-ray sonographic characteristics, the correlation of the articular syndrome severity with extra-articular manifestations of the diseases, as well as aspects of the arthritis pathogenesis in this category of patients. The study included 525 patients in the ratio of the examined with Henoch-Schonlen purpura, microscopic polyangiitis, cryoglobulinemic vasculitis, polyarteritis nodosa, Takayasu's arteritis, Wegener's granulomatosis with polyangiitis and eosinophilic granulomatosis with polyangiitis Churg-Strauss as a 7:4:3:1:1:1:1...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29279515/anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-aav-restricted-to-the-limbs-a-case-report
#12
Yoshie Ojima, Kinya Sawada, Hiroshi Fujii, Tsuyoshi Shirai, Ayako Saito, Saeko Kagaya, Satoshi Aoki, Yoichi Takeuchi, Tomonori Ishii, Tasuku Nagasawa
A previously healthy 58-year-old man was admitted for muscle pain and weakness (manual muscle testing [MMT] of 4/4 for upper and lower limbs). We detected elevated levels of inflammatory makers and PR3-anti-neutrophil cytoplasmic antibody (ANCA). Subsequently, the muscle weakness rapidly progressed to an MMT of 2 for all limbs. Magnetic resonance imaging indicated muscle edema, and the CK level increased to 29,998 U/L. mPSL and cyclophosphamide pulse therapy improved the patient symptoms. MMT recovered to 4 for all limbs...
December 27, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29260039/intracerebral-hemorrhage-after-iv-tpa-for-stroke-as-early-symptom-of-anca-associated-vasculitis
#13
Neda Zarghami Esfahani, Daniel M Anderson, Connie Pieper, Harold P Adams
Anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are rare diseases characterized by a necrotizing small-vessel vasculitis and circulating ANCA that comprise granulomatosis with polyangiitis, microscopic polyangiitis, and eosinophilic granulomatosis with polyangiitis (EGPA). Acute ischemic stroke (AIS) can be a manifestation of central nervous system (CNS) involvement in these diseases. Furthermore, intracerebral hemorrhage (ICH) is a potential complication of these necrotizing vasculitides...
December 2017: ENeurologicalSci
https://www.readbyqxmd.com/read/29258731/characteristics-and-visual-outcome-of-refractory-retinal-vasculitis-associated-with-antineutrophil-cytoplasm-antibody-associated-vasculitides
#14
Miaoli Lin, Stephen D Anesi, Lina Ma, Aseef Ahmed, Karen Small, C Stephen Foster
PURPOSE: To describe the clinical characteristics, therapies, visual outcomes and prognoses of patients with retinal vasculitis associated with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV). DESIGN: Retrospective case series. METHODS: Patients diagnosed with retinal vasculitis associated with AAV and at least 6-months of follow-up were included. Demographic data, systemic and ocular features, best corrected visual acuity at the initial visit and latest visit, fluorescein angiography (FA) and indocyanine green angiography (ICGA) findings, therapy regimen and outcome were collected from the Massachusetts Eye Research and Surgery Institution (MERSI) database from 2006 to 2017...
December 16, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29249740/a-case-of-infectious-enterocolitis-with-hyperammonemia
#15
Ken Otsuji, Satoko Simizu, Takeru Endo, Ayako Kanazawa, Hideaki Arai, Keiji Nagata, Nobuya Harayama, Shunichi Nihei, Keiji Aibara, Mitsumasa Saito, Masayuki Kamochi
Case reports of hyperammonemia due to urease-producing bacteria are found occasionally, but most of them are associated with urinary tract infections. We experienced a case of infectious enterocolitis with hyperammonemia in which the causative bacteria was speculated to be urease-producing bacteria. A Japanese woman in her 70s had been diagnosed with microscopic polyangiitis in a nearby hospital and was transferred to our hospital. Although the microscopic polyangiitis was relatively under control after treatment with steroids and rituximab, frequent diarrhea with hyperammonemia (324 µg/dl) appeared and she became comatose...
2017: Journal of UOEH
https://www.readbyqxmd.com/read/29213028/-acute-cholecystitis-due-to-microscopic-polyangiitis-a-case-report
#16
Masaya Kotsuka, Tadashi Tsukamoto, Akishige Kanazawa, Sadatoshi Shimizu, Yoshitaka Nakajima, Shintaro Kodai, Shigeaki Komatsu
A 78-year-old man with chief complaints of cough and lower limb numbness was admitted to our hospital. Serum myeloperoxidase-antineutrophil cytoplasmic antibody titer (MPO-ANCA) was elevated (48.8U/ml), and a diagnosis of microscopic polyangiitis (MPA) was made. After admission, the patient developed a fever and right upper quadrant pain. Ultrasonography and computed tomography revealed an acute cholecystitis of unknown cause, and laparoscopic cholecystectomy was performed. Histopathological examination of the resected gallbladder revealed necrotizing vasculitis along with the infiltration of eosinophils, lymphocytes, and plasma cells around the small arteries in the muscular layer of the gallbladder, which are characteristics of MPA...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/29185962/renal-outcome-of-kidney-transplantation-in-korean-recipients-with-anca-associated-vasculitis
#17
Eun Seong Park, Sung Soo Ahn, Seung Min Jung, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
OBJECTIVES: We investigated renal outcome of kidney-transplantation in Korean recipients with biopsy-proven renal involvement of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) in a single centre. METHODS: We reviewed the medical records of 144 Korean patients and included 3 female patients with microscopic polyangiitis (MPA) and one male patient with eosinophilic granulomatosis with polyangiitis (EGPA) in this study. We obtained clinical and laboratory data related to kidney-transplantation, analysed renal outcome of kidney-transplantation in 4 recipients with AAV and compared it with those of previous studies...
November 27, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29185957/the-utility-of-the-acr-eular-2017-provisional-classification-criteria-for-granulomatosis-with-polyangiitis-in-korean-patients-with-antineutrophil-cytoplasmic-antibody-associated-vasculitis
#18
Juyoung Yoo, Ho Jae Kim, Sung Soo Ahn, Seung Min Jung, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
OBJECTIVES: We applied the ACR/EULAR 2017 provisional classification criteria for granulomatosis with polyangiitis (GPA) to 150 Korean patients with previously diagnosed antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) and investigated how many patients with AAV were reclassified as GPA. METHODS: We included patients with 30 GPA, 30 eosinophilic GPA (EGPA) and 90 microscopic polyangiitis (MPA) patients. Patients can be classified as GPA, when the sum of scores is more than 5...
November 27, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29180123/childhood-versus-adult-onset-anca-associated-vasculitides-a-nested-matched-case-control-study-from-the-french-vasculitis-study-group-registry
#19
REVIEW
Michele Iudici, Christian Pagnoux, Pierre Quartier, Matthias Büchler, Ramiro Cevallos, Pascal Cohen, Claire de Moreuil, Philippe Guilpain, Alain Le Quellec, Jacques Serratrice, Benjamin Terrier, Loïc Guillevin, Luc Mouthon, Xavier Puéchal
OBJECTIVE: To investigate differences between childhood-onset ANCA-associated vasculitides (cAAVs) and matched adult-onset controls (aAAVs). METHODS: cAAV clinical pictures at onset and outcomes were compared to a randomly selected sample of aAAV patients from the French Vasculitis Study Group Registry. Cases and controls were matched for AAV (granulomatosis with polyangiitis [GPA], microscopic polyangiitis [MPA] or eosinophilic granulomatosis with polyangiitis [EGPA]), sex and year of enrollment...
November 24, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29167552/association-of-ets1-polymorphism-with-granulomatosis-with-polyangiitis-and-proteinase-3-anti-neutrophil-cytoplasmic-antibody-positive-vasculitis-in-a-japanese-population
#20
Aya Kawasaki, Keita Yamashita, Fumio Hirano, Ken-Ei Sada, Daisuke Tsukui, Yuya Kondo, Yoshitaka Kimura, Kurumi Asako, Shigeto Kobayashi, Hidehiro Yamada, Hiroshi Furukawa, Kenji Nagasaka, Takahiko Sugihara, Kunihiro Yamagata, Takayuki Sumida, Shigeto Tohma, Hajime Kono, Shoichi Ozaki, Seiichi Matsuo, Hiroshi Hashimoto, Hirofumi Makino, Yoshihiro Arimura, Masayoshi Harigai, Naoyuki Tsuchiya
ETS proto-oncogene 1, transcription factor (ETS1) is involved in various immune responses. Genome-wide association studies on systemic lupus erythematosus in Chinese populations identified the association of ETS1 polymorphism in 3' untranslated region, rs1128334A, which was associated with lower ETS1 expression. In view of substantial sharing of susceptibility genes across multiple autoimmune diseases, we examined whether ETS1 is associated with a rare autoimmune rheumatic disease, anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV)...
October 5, 2017: Journal of Human Genetics
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