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"Microscopic polyangiitis"

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https://www.readbyqxmd.com/read/28306595/update-on-maintenance-therapy-for-granulomatosis-with-polyangiitis-and-microscopic-polyangiitis
#1
Ora Singer, W Joseph McCune
PURPOSE OF REVIEW: The antineutrophilic cytoplasmic antibody (ANCA)-associated vasculitides are a group of rare systemic diseases. The past several years have seen major therapeutic advances in the treatment of granulomatosis with polyangiitis (GPA) and microscopic polyangiitis (MPA). The success rate in induction of remission is high, but reducing the high incidence of relapses remains a therapeutic challenge. RECENT FINDINGS: Studies have shown no improvement in relapse rates in GPA and MPA over the past 2 decades...
March 16, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28302661/severe-co-trimoxazole-induced-hypoglycaemia-in-a-patient-with-microscopic-polyangiitis
#2
Thomas Edward Conley, Atif Mohiuddin, Noshaba Naz
A 69-year-old man presented to the emergency department with lower respiratory tract infection and febrile neutropaenia. He was recently discharged following a 50-day hospital stay with newly diagnosed microscopic polyangiitis, complicated by pulmonary haemorrhage and severe renal dysfunction requiring renal replacement therapy, plasma exchange and immunosuppression (cyclophosphamide and methylprednisolone). High risk of pneumocystis pneumonia (PCP) led to an escalation in treatment from prophylactic to therapeutic oral co-trimoxazole, alongside broad-spectrum antibiotics...
March 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28275478/characteristics-and-prognosis-of-microscopic-polyangiitis-with-bronchiectasis
#3
Hiroki Tashiro, Koichiro Takahashi, Masahide Tanaka, Kazutoshi Komiya, Tomomi Nakamura, Shinya Kimura, Yoshifumi Tada, Naoko Sueoka-Aragane
BACKGROUND: Major pulmonary manifestations associated with microscopic polyangiitis (MPA) include diffuse alveolar hemorrhage (DAH) and interstitial pneumonia (IP).We previously showed bronchiectasis (BE) was one of the pulmonary complications of MPA. However, clinical features of BE patients with MPA are not fully understood. We investigated the characteristics and prognosis of BE patients with MPA. METHODS: Forty-five MPA patients were retrospectively studied...
February 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28273992/anca-associated-mononeuritis-multiplex-with-overlap-in-vasculitic-syndromes
#4
Ravi Anadure, Coimbatore Narayanan, Govindraj Varadraj, Bevinahalli Nandeesh
Mononeuritis multiplex is a common manifestation of many illnesses which includes Hansen's disease and certain types of systemic vasculitis. The Antineutrophil Cytoplasmic Antibody (ANCA)-Associated Vasculitis (AAV) is a group of rare diseases which show typical characteristic inflammatory cell infiltration and blood vessel wall necrosis. AAV syndromes include Granulomatosis with Polyangiitis (GPA), Microscopic Polyangiitis (MPA) and Eosinophilic Granulomatosis with Polyangiitis (EGPA). We describe a patient who presented with mononeuritis multiplex and had features of overlap between EGPA and MPA...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28260443/outcome-of-renal-transplant-in-recipients-with-vasculitis
#5
Samia Barbouch, Meriam Hajji, Raja Aoudia, Monther Ounissi, Asma Zammouri, Rym Goucha, Fathi Ben Hamida, Mohammed Mongi Bacha, Ezzedine Abderrahim, Taieb Ben Abdallah
OBJECTIVES: End-stage renal disease develops in a high percentage of patients with vasculitis, in whom kidney transplant has become a therapeutic option. However, limited data are available on the prognosis and outcomes after kidney transplant in these patients. We aimed to compare the long-term graft survival and graft function in 8 renal transplant recipients with vasculitis (granulomatosis with polyangiitis, microscopic polyangiitis, Goodpasture syndrome, and Henoch-Schonlein purpura) with the other kidney recipients at a single center...
February 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28243232/onset-of-microscopic-polyangiitis-in-binephrectomied-patient-on-chronic-hemodialysis-case-report
#6
Aleksandar Jankovic, Vesna Maslarevic-Radovic, Petar Djuric, Jelena Tosic-Dragovic, Ana Bulatovic, Nikola Simovic, Milos Mitrovic, Verica Stankovic-Popovic, Vesna Dopudja-Pantic, Snezana Arandjelovic, Nada Dimkovic
INTRODUCTION: Microscopic polyangiitis (MPA) is one of the causes of the pulmonary-renal syndrome associated with elevated non-specific markers of inflammation and antineutrophil cytoplasmic autoantibody (ANCA) positivity in 50-75%. De novo occurrence of the disease in patients on chronic hemodialysis (HD) has not been described. CASE PRESENTATION: We presented patient who developed MPO-ANCA-associated MPA with lung and musculoskeletal involvement after 4 years on regular HD due to bilateral nephrectomy...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28229825/anca-associated-pauci-immune-glomerulonephritis-always-pauci-immune
#7
Valeria Scaglioni, Marina Scolnik, Luis J Catoggio, Silvia B Christiansen, Carlos F Varela, Gustavo Greloni, Guillermo J Rosa-Diez, Enrique R Soriano
OBJECTIVES: Anti-neutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis (GN) is considered "pauci-immune" with absent or mild glomerular tuft staining for immunoglobulin (Ig) and/or complement. However, it is not unusual to see some immune deposits (ID) within glomeruli on immunofluorescence (IF). We determined to evaluate the prevalence and clinical significance of immune deposits in ANCA-associated GN. METHODS: We included all patients with ANCA associated vasculitis with renal biopsies between January 2002 and May 2014: granulomatosis with polyangiitis, eosinophilic granulomatosis with polyangiitis, microscopic polyangiitis and renal limited vasculitis...
January 31, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28225490/clinical-characteristics-and-outcome-of-spanish-patients-with-anca-associated-vasculitides-impact-of-the-vasculitis-type-anca-specificity-and-treatment-on-mortality-and-morbidity
#8
MULTICENTER STUDY
Roser Solans-Laqué, Guadalupe Fraile, Monica Rodriguez-Carballeira, Luis Caminal, Maria J Castillo, Ferran Martínez-Valle, Luis Sáez, Juan J Rios, Xavier Solanich, Joaquim Oristrell, Francisco Pasquau, Eva Fonseca, Monica Zamora, Jose L Callejas, Begoña Frutos, Monica Abdilla, Patricia Fanlo, Isabel García-Sánchez, Miguel López-Dupla, Bernardo Sopeña, Almudena Pérez-Iglesias, Josep A Bosch
The aim of this study was to describe the clinical characteristics of ANCA-associated vasculitides (AAV) at presentation, in a wide cohort of Spanish patients, and to analyze the impact of the vasculitis type, ANCA specificity, prognostic factors, and treatments administered at diagnosis, in the outcome.A total of 450 patients diagnosed between January 1990 and January 2014 in 20 Hospitals from Spain were included. Altogether, 40.9% had granulomatosis with polyangiitis (GPA), 37.1% microscopic polyangiitis (MPA), and 22% eosinophilic granulomatosis with polyangiitis (EGPA)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28196580/anti-neutrophil-cytoplasmic-antibody-associated-vasculitis-with-renal-involvement-analysis-of-89-cases
#9
Fernando Caravaca-Fontán, Estefanía Yerovi, María Delgado-Yagu E, Cristina Galeano, Saúl Pampa-Saico, Maria Teresa Tenorio, Fernando Liaño
INTRODUCTION: The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis with renal involvement are associated with high morbi-mortality. In this study we analyse if the prognosis of these diseases have improved in recent years, and which factors influence the outcomes. MATERIAL AND METHODS: Retrospective single-centre observational study, which included all patients diagnosed with microscopic polyangiitis and granulomatosis with polyangiitis with renal involvement in the last 25 years...
January 6, 2017: Medicina Clínica
https://www.readbyqxmd.com/read/28184292/rituximab-therapy-in-pemphigus-and-other-autoantibody-mediated-diseases
#10
REVIEW
Nina A Ran, Aimee S Payne
Rituximab, a monoclonal antibody targeting the B cell marker CD20, was initially approved in 1997 by the United States Food and Drug Administration (FDA) for the treatment of non-Hodgkin lymphoma. Since that time, rituximab has been FDA-approved for rheumatoid arthritis and vasculitides, such as granulomatosis with polyangiitis and microscopic polyangiitis. Additionally, rituximab has been used off-label in the treatment of numerous other autoimmune diseases, with notable success in pemphigus, an autoantibody-mediated skin blistering disease...
2017: F1000Research
https://www.readbyqxmd.com/read/28148583/anca-associated-vasculitis
#11
Max Yates, Richard Watts
The vasculitides are a heterogeneous group of conditions typified by their ability to cause vessel inflammation with or without necrosis. They present with a wide variety of signs and symptoms and, if left untreated, carry a significant burden of mortality and morbidity. The antineutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are three separate conditions - granulomatosis with polyangiitis (GPA; formerly known as Wegener's granulomatosis), microscopic polyangiitis (MPA), and eosinophilic granulomatosis with polyangiitis (EGPA; previously known as Churg-Strauss syndrome)...
February 2017: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/28134074/chest-and-renal-involvements-birmingham-vascular-activity-score-more-than-13-5-and-five-factor-score-1996-more-than-1-at-diagnosis-are-significant-predictors-of-relapse-of-microscopic-polyangiitis
#12
Yoon-Jeong Oh, Sung Soo Ahn, Eun Seong Park, Seung Min Jung, Jason Jungsik Song, Yong-Beom Park, Sang-Won Lee
OBJECTIVES: We investigated whether specified organ involvements, antineutrophil cytoplasmic antibody (ANCA) positivity, Birmingham vasculitis activity score (BVAS) and five factor scores (FFS) at diagnosis could predict relapse of microscopic polyangiitis (MPA). METHODS: We reviewed the medical records of 90 patients with MPA. We collected clinical and prognostic data, (MPO)-ANCA and proteinase 3 (PR3)-ANCA, BVAS and FFS at diagnosis, and we compared them between the two groups...
January 19, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28131439/-antineutrophil-cytoplasmic-antibodies-associated-with-infective-endocarditis-literature-review
#13
V Langlois, I Marie
Antineutrophil cytoplasmic antibodies (ANCA) associated with infective endocarditis are a rare disorder. The condition can mimic primary systemic vasculitis (i.e. granulomatosis with polyangiitis, microscopic polyangiitis, and eosinophilic granulomatosis with polyangiitis). Thus, a wrong diagnosis of valvular involvement related to primary systemic vasculitis can be made in patients exhibiting ANCA associated with infective endocarditis. Because treatment of both conditions is different, this wrong diagnosis will lead to dramatic consequences in these latter patients...
January 25, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28124760/neutrophil-extracellular-traps-in-neuropathy-with-anti-neutrophil-cytoplasmic-autoantibody-associated-microscopic-polyangiitis
#14
Hiroki Takeuchi, Teruaki Kawasaki, Kazuo Shigematsu, Kazuyuki Kawamura, Nobuyuki Oka
To clarify the roles of neutrophils in anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitic neuropathy, we studied neutrophil extracellular traps (NETs) in peripheral nerve vasculitis. Stored nerve samples from 17 patients with microscopic polyangiitis (MPA) were immunohistochemically analyzed using antibodies for citrullinated histone H3 (citH3) and various neutrophil enzymes. We defined merged citH3 and extracellularly released myeloperoxidase (MPO) as NET formation. We also compared NET formation between MPO-ANCA-positive/negative MPA and rheumatoid arthritis (RA)-associated vasculitic neuropathy...
January 26, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28119348/a-pragmatic-approach-to-vasculitis-in-the-gastrointestinal-tract
#15
REVIEW
Runjan Chetty, Stefano Serra
Although vasculitis involving the gastrointestinal tract (GIT) is an uncommon occurrence, occasionally vasculitis can present as haemorrhagic infarction or ischaemia for which a length of bowel is removed. Invariably, the appropriate clinical history is not forthcoming, or vasculitis is not clinically suspected. The purpose of this overview is to provide the practising gastrointestinal (GI) pathologist with a framework to recognise and diagnose vasculitides within the GIT. The classification may be approached by aetiological agent or size of vessel involved; an international consensus group now favours the latter approach...
January 24, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28089971/incidence-of-malignancy-prior-to-antineutrophil-cytoplasmic-antibody-associated-vasculitis-compared-to-the-general-population
#16
Emma E van Daalen, Chinar Rahmattulla, Ron Wolterbeek, Jan A Bruijn, Ingeborg M Bajema
OBJECTIVE: Previous studies have reported an increased malignancy risk preceding antineutrophil cytoplasmic antibody-associated vasculitis (AAV), suggesting common pathogenic pathways in these 2 entities. However, the study results were conflicting and often limited to patients with granulomatosis with polyangiitis (GPA). Here, we study the malignancy risk prior to AAV diagnosis [either GPA or microscopic polyangiitis (MPA)] to elaborate on the putative association between malignancy and AAV...
March 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28087591/clinical-trials-in-antineutrophil-cytoplasmic-antibody-associated-vasculitis-what-we-have-learnt-so-far-and-what-we-still-have-to-learn
#17
Divi Cornec, Emilie Cornec-Le Gall, Ulrich Specks
The prognosis of the antineutrophil cytoplasmic antibody associated vasculitides (AAV), microscopic polyangiitis (MPA), granulomatosis with polyangiitis (GPA) and eosinophilic GPA (EGPA), has been fundamentally improved over the last five decades by the use of glucocorticoids and immunosuppressants, turning them from consistently fatal diseases into chronic conditions. The long-term course is now largely determined by the frequency of disease flares and by accruing damage caused by disease activity and treatment-related comorbidities...
January 12, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28076879/immunoglobulin-ig-m-antibodies-to-proteinase-3-in-granulomatosis-with-polyangiitis-and-microscopic-polyangiitis
#18
J M Clain, A M Hummel, J H Stone, F C Fervenza, G S Hoffman, C G M Kallenberg, C A Langford, W J McCune, P A Merkel, P A Monach, P Seo, R F Spiera, E W St Clair, S R Ytterberg, U Specks
Anti-neutrophil cytoplasmic antibodies (ANCA) appear to play an important role in the pathogenesis of ANCA-associated vasculitis (AAV). However, ANCA alone are not sufficient to generate disease, and some evidence suggests that infectious triggers may serve as inciting events for AAV disease activity. Antibodies of the immunoglobulin (Ig)M isotype often serve as markers of recent infection, and IgM ANCA have been identified previously in patients with AAV, although the frequency and clinical relevance of IgM ANCA is not well established...
April 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28062909/paediatric-anti-neutrophil-cytoplasmic-antibody-anca-associated-vasculitis-an-update-on-renal-management
#19
REVIEW
Lucy A Plumb, Louise Oni, Stephen D Marks, Kjell Tullus
The anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitides (AAV) are a group of disorders characterized by necrotizing inflammation of the small to medium vessels in association with autoantibodies against the cytoplasmic region of the neutrophil. Included in this definition are granulomatosis with polyangiitis (GPA, formerly known as Wegener's granulomatosis), microscopic polyangiitis (MPA) and eosinophilic granulomatosis with polyangiitis (formerly known as Churg-Strauss syndrome). AAV are chronic, often relapsing diseases that can be organ or life threatening...
January 6, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28029757/identification-of-functional-and-expression-polymorphisms-associated-with-risk-for-anti-neutrophil-cytoplasmic-autoantibody-associated-vasculitis
#20
Peter A Merkel, Gang Xie, Paul A Monach, Xuemei Ji, Dominic J Ciavatta, Jinyoung Byun, Benjamin D Pinder, Ai Zhao, Jinyi Zhang, Yohannes Tadesse, David Qian, Matthew Weirauch, Rajan Nair, Alex Tsoi, Christian Pagnoux, Simon Carette, Sharon Chung, David Cuthbertson, John C Davis, Paul F Dellaripa, Lindsy Forbess, Ora Gewurz-Singer, Gary S Hoffman, Nader Khalidi, Curry Koening, Carol A Langford, Alfred D Mahr, Carol McAlear, Larry Moreland, E Philip Seo, Ulrich Specks, Robert F Spiera, Antoine Sreih, E William St Clair, John H Stone, Steven R Ytterberg, James T Elder, Jia Qu, Toshiki Ochi, Naoto Hirano, Jeffrey C Edberg, Ronald J Falk, Christopher I Amos, Katherine A Siminovitch
OBJECTIVE: To identify risk alleles relevant to the cause and biology of anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). METHODS: We conducted a genome-wide association and subsequent replication study including 1986 cases of AAV [granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA)] and 4723 controls. Meta-analysis of these datasets and functional annotation of identified risk loci were performed and candidate disease variants with unknown functional effects investigated for impact on gene expression and/or protein function...
December 28, 2016: Arthritis & Rheumatology
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