Glomerular Disease in Patients with Infectious Processes Developing Antineutrophil Cytoplasmic Antibodies

Table 5

Renal function in 50 patients with infections, ANCA positivity, and glomerular disease.

Feature	Positive patient number	Unreported patient number	Positive; % of reported patients
Urine microscopy
Hematuria	31 (E 20; O 21)	9 (E 7; O 2)	98
Dysmorphic RBCs, RBC casts	21 (E 5, O 16)
Pyuria, WBC casts	6 (E: 3; O: 3)
Proteinuria
Increased urine protein excretion	35 (E 16; O 19)	15 (E 11; O 4)	100
Nephrotic proteinuria	10 (E 3; O 7)		29
Renal failure
Elevated serum creatinine	39 (E 20; O 19)	9 (E 7; O 2)	95
Dialysis	9 (E 5; O 4)		18–24^1

%: percent, RBC: red blood cell, WBC: white blood cell, E: endocarditis, O: other than endocarditis infection. ¹Dialysis was not reported but may have been used in two patients with endocarditis and acute renal failure [36] and one patient with a chronic suppurative process who presented with a serum creatinine of 2,220 𝜇mol/L [110].