Clinical profile of distal renal tubular acidosis

Autor: Ratan Jha, J Muthukrishnan, Shekhar Shiradhonkar, Kiran Patro, KVS Harikumar, K D Modi
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Saudi Journal of Kidney Diseases and Transplantation, Vol 22, Iss 2, Pp 261-267 (2011)
Druh dokumentu: article
ISSN: 1319-2442
Popis: To determine the clinical profile and progression of renal dysfunction in distal renal tubular acidosis (dRTA), we retrospectively studied 96 consecutive cases of dRTA diagnosed at our center. Patients with unexplained metabolic bone disease, short stature, hypokalemia, re-current renal stones, chronic obstructive uropathy or any primary autoimmune condition known to cause dRTA were screened. Distal RTA was diagnosed on the basis of systemic metabolic acidosis with urine pH >5.5 and positive urine anion gap. In those patients who had fasting urine pH >5.5 with normal baseline systemic pH and bicarbonate levels (incomplete RTA), acid load test with ammonium chloride was done. A cause of dRTA could be established in 53 (54%) patients. Urological defect in children (22/44) and autoimmune disease in adults (11/52) were the commonest causes. Hypokalemic paralysis, proximal muscle weakness and voiding difficulty were the common modes of presentation. Doubling of serum creatinine during the study period was noted in 13 out of 27 patients who had GFR 60 mL/min (P
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