MÆDICA - a Journal of Clinical Medicine | Vol. 10, nr. 2, 2015

ISSN 1841-9038  |  e-ISSN 2069-6116
ISSN-L 1841-9038


Plagiatul – in actualitate

Tema plagiatului este tot mai mult discutata in ultima vreme. Aparitia unor programe performante de cautare si identificare a similitudinilor intre texte [...]

Committe on Publication Ethics

A forum for responsible and ethical research publishing – Code of Conduct and Best Practice Guidelines for Journal Editors.

Members Area

Pneumo-Renal Syndrome in Anti- Neutrophil Cytoplasm Antibody (ANCA)-Associated Small-Vessel Vasculitis

, , , and


Objectives: We aimed to evaluate the prevalence of lung hemorrhage, its determinants and its prognostic significance in adults patients with severe kidney involvement due to ANCA-associated vasculitis diagnosed and treated in a nephrology department.

Material and Methods: Seventy-five patients consecutively diagnosed by kidney biopsy with crescentic pauci-immune glomerulonephritis entered this cohort study and were grouped according to the presence of diffuse alveolar hemorrhage (DAH – diagnosed as diffuse alveolar pattern on chest radiographs and anemia without evidence of another external bleeding). ANCAs were assessed by capture PR3-ANCA and MPO–ANCA ELISA or by indirect immunofluorescence.

Outcomes: Patients were followed for a median period of 38 (11.7; 65.8) months. The median age was 61.6 years. Median creatinine was 5.7 mg/dL and 17% of the patients needed temporary dialysis. Most of the patients (76%) had MPO-ANCA; 31% had pneumo-renal syndrome. DAH patients had more severe and active kidney disease, as reflected by higher serum creatinine (7.1 mg/dL vs 4.45 mg/dL; p=0.006) and higher hematuria (610/mm3 vs 230/mm3, p=0.003). The risk of DAH was not influenced by gender, age or ANCA specificity, but by smoking (smokers had a 4 (95%CI 1.18-14.2; p=0.002) times higher the risk of lung hemorrhage) and by season (patients diagnosed in winter and autumn had a 6 (95% CI 1.6-20.9; p=0.005) times higher the risk of lung hemorrhage). The proportion of responders and of patients with relapses, and time to maintenance dialysis or to death were similar irrespective to the occurrence of DAH at presentation.

Conclusions: In patients with ANCA associated pauci-immune glomerulonephritis, cold season, smoking and active kidney disease, but not ANCA specificity or inflammation were associated with lung hemorrhage. Although diffuse alveolar hemorrhage was the main cause of death, it was not related
to short- or long-term outcome.

Full text | PDF

Leave a Reply