British Isles Lupus Assessment Group (BILAG) developed an index for evaluating disease activity in patients with systemic lupus erythematosus (SLE). The index is based on several findings, each of which is categorized. The authors are from multiple universities in Great Britain.
Patient selection: followup assessment
Hypertension
Current |
Previous |
Comment |
Category |
accelerated |
NA |
NA |
A |
> 140/90 mm Hg and rising |
lower |
(current systolic) - (previous systolic) >= 30 mm Hg |
C |
> 140/90 mm Hg and rising |
lower |
(current diastolic) - (previous diastolic) >= 15 mm Hg |
C |
normal |
abnormal |
NA |
D |
normal |
normal |
NA |
E |
Serum Creatinine
Current |
Previous |
Comment |
Category |
creatinine > 130 µmol/L |
NA |
current / previous ratio > 1.3 |
A |
creatinine > 130 µmol/L |
NA |
NA |
B |
NA |
NA |
current / previous ratio > 1.15 |
B |
normal |
abnormal |
NA |
D |
normal |
normal |
NA |
E |
Creatinine Clearance
Current |
Previous |
Comment |
Category |
creatinine clearance < 50 mL/min |
creatinine clearance > 50 mL/min |
NA |
A |
NA |
NA |
(current clearance) / (previous clearance) < 0.67 |
A |
normal |
abnormal |
NA |
D |
normal |
normal |
NA |
E |
Purpose: To classify renal manifestations on a followup visit in a patient with systemic lupus erythematosus (SLE) using BILAG categories.
Specialty: Immunology/Rheumatology
Objective: severity, prognosis, stage, differential diagnosis and mimics, red flags, disease progression, prevention
ICD-10: M32,