Lopez-Garcia, SC;
Emma, F;
Walsh, SB;
Fila, M;
Hooman, N;
Zaniew, M;
Bertholet-Thomas, A;
... Bockenhauer, D; + view all
(2019)
Treatment and long-term outcome in primary distal renal tubular acidosis.
Nephrology Dialysis Transplantation
, 34
(6)
pp. 981-991.
10.1093/ndt/gfy409.
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Bockenhauer Manuscript dRTA - Review Version 2.1.pdf - Accepted Version Download (674kB) | Preview |
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Supplemental Appendix dRTA Review 3.2.pdf - Accepted Version Download (3MB) | Preview |
Abstract
Background: Primary distal renal tubular acidosis (dRTA) is a rare disorder, and we aimed to gather data on treatment and long-term outcome. / Methods: We contacted paediatric and adult nephrologists through European professional organizations. Responding clinicians entered demographic, biochemical, genetic and clinical data in an online form. / Results: Adequate data were collected on 340 patients (29 countries, female 52%). Mutation testing had been performed on 206 patients (61%); pathogenic mutations were identified in 170 patients (83%). The median (range) presentation age was 0.5 (0–54) years and age at last follow-up was 11.0 (0–70.0) years. Adult height was slightly below average with a mean (SD score) of −0.57 (±1.16). There was an increased prevalence of chronic kidney disease (CKD) Stage ≥2 in children (35%) and adults (82%). Nephrocalcinosis was reported in 88%. Nephrolithiasis was more common with SLC4A1 mutations (42% versus 21%). Thirty-six percent had hearing loss, particularly in ATP6V1B1 (88%). The median (interquartile range) prescribed dose of alkali (mEq/kg/day) was 1.9 (1.2–3.3). Adequate metabolic control (normal plasma bicarbonate and normocalciuria) was achieved in 158 patients (51%), more commonly in countries with higher gross domestic product (67% versus 23%), and was associated with higher height and estimated glomerular filtration rate. / Conclusion: Long-term follow-up from this large dRTA cohort shows an overall favourable outcome with normal adult height for most and no patient with CKD Stage 5. However, 82% of adult patients have CKD Stages 2–4. Importance of adequate metabolic control was highlighted by better growth and renal function but was achieved in only half of patients.
| Type: | Article |
|---|---|
| Title: | Treatment and long-term outcome in primary distal renal tubular acidosis |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/ndt/gfy409 |
| Publisher version: | https://doi.org/10.1093/ndt/gfy409 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | chronic kidney disease, distal renal tubular acidosis, nephrocalcinosis, nephrolithiasis, sensorineural hearing loss |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine > Renal Medicine |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10064148 |
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