When sarcoidosis involves the kidneys, it can cause significant renal insufficiency that warrants prompt, targeted treatment. The clinical approach in this setting differs in its urgency and aims from sarcoidosis without renal involvement.
The primary treatment target is improvement in renal function. While full normalization of creatinine may not always be achievable, a measurable improvement in renal indices is the expected outcome with appropriate treatment.
While there is limited data upon which to base therapeutic recommendations, corticosteroids are usually used with evidence of renal insufficiency starting at 40 mg daily, with a slow wean of therapy as used for other organ involvement.
Usually there is evidence of improvement in renal function with treatment, although normalization of creatinine may not occur.