Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
Sex-specific clinical presentations and outcomes in ANCA-associated vasculitis presenting with severe kidney disease.
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Casal Moura Marta, Patricio-Liébana Marc, Zand Ladan, Zubidat Dalia, Vargas-Brochero Maria J, Valencia Daniela, Machado Miriam, Abouzahir Sana, Specks Ulrich, Sethi Sanjeev, Fervenza Fernando C, Soler Maria José
Аннотация
BACKGROUND: The impact of sex in the clinical presentation and outcomes of patients with anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) with glomerulonephritis (AAV-GN) has not been studied, particularly in patients with severe kidney involvement at presentation (eGFR < 15 ml/min/1.73 m2).
METHODS: A retrospective cohort study on MPO- or PR3-ANCA positive patients with AAV (MPA or GPA) and eGFR<15 ml/min/1.73 m2 or end-stage kidney disease (ESKD) at presentation. Clinical presentation and renal outcomes were analyzed according to sex.
RESULTS: We analyzed 166 patients with biopsy-proven active AAV-GN and eGFR < 15 ml/min/1.7 3m2 at the time of diagnosis: 78 (47%) were females and 88 (53%) were males. Hypertension was more frequently present in males (85.2% vs 70.5%, P = .022). Median serum creatinine (SCr) was higher in males when compared with females [5.2 (IQR 4.2-7.4) vs 3.6 (IQR 2.8-5.1) mg/dl, P < .001]. Males started dialysis within 4 weeks more frequently than female (p = .003) although the median percentage of crescents was similar between groups (35.7% in males versus 36.4% in females, P = .0873). However, the rate of dialysis initiation or progression to ESKD in the first 12 months was not different between males (15, 62.5%) versus females (29, 61.7%) at 12 months. By multivariable logistic regression, factors related with dialysis initiation within the first 4 weeks in our cohort were SCr, alveolar hemorrhage, and PR3-ANCA adjusted for sex.
CONCLUSION: In our cohort, male patients presented with higher serum creatinine (SCr), and dialysis was started within the first 4 weeks more frequently (53.4% vs 30.7%). There were no differences in outcomes of kidney recovery, overall dialysis rates, and progression to ESKD within 12 months in patients with AAV-GN and eGFR < 15 ml/min/1.73 m2 between groups.
METHODS: A retrospective cohort study on MPO- or PR3-ANCA positive patients with AAV (MPA or GPA) and eGFR<15 ml/min/1.73 m2 or end-stage kidney disease (ESKD) at presentation. Clinical presentation and renal outcomes were analyzed according to sex.
RESULTS: We analyzed 166 patients with biopsy-proven active AAV-GN and eGFR < 15 ml/min/1.7 3m2 at the time of diagnosis: 78 (47%) were females and 88 (53%) were males. Hypertension was more frequently present in males (85.2% vs 70.5%, P = .022). Median serum creatinine (SCr) was higher in males when compared with females [5.2 (IQR 4.2-7.4) vs 3.6 (IQR 2.8-5.1) mg/dl, P < .001]. Males started dialysis within 4 weeks more frequently than female (p = .003) although the median percentage of crescents was similar between groups (35.7% in males versus 36.4% in females, P = .0873). However, the rate of dialysis initiation or progression to ESKD in the first 12 months was not different between males (15, 62.5%) versus females (29, 61.7%) at 12 months. By multivariable logistic regression, factors related with dialysis initiation within the first 4 weeks in our cohort were SCr, alveolar hemorrhage, and PR3-ANCA adjusted for sex.
CONCLUSION: In our cohort, male patients presented with higher serum creatinine (SCr), and dialysis was started within the first 4 weeks more frequently (53.4% vs 30.7%). There were no differences in outcomes of kidney recovery, overall dialysis rates, and progression to ESKD within 12 months in patients with AAV-GN and eGFR < 15 ml/min/1.73 m2 between groups.