Experience with chemodissolution of uric acid stones in 30 patients is presented. Chemodissolution was achieved either with infusion of 0.16 M i.v. lactate or oral sodium bicarbonate, in addition to liberal fluid intake and allopurinol wherever indicated. In some cases direct chemodissolution by in situ irrigation with sodium bicarbonate solution was done after an initial percutaneous nephrostomy. Seven patients presented with acute obstructive anuria. In this group, 5 of them had bilateral obstructive calculi, while 2 had unilateral obstruction in a solitary kidney. The latter 2 had complete recovery following intravenous lactate therapy. Of the 5 presenting with bilateral obstruction, 2 patients had complete response to chemodissolution, whereas the remaining 3 had only a partial response requiring surgery for ultimate salvage. In this group I, 6 patients are doing well with a normal serum creatinine at 3 months to 4 years follow-up, while 1 patient has a serum creatinine, stabilised at 3.2 mg%. In the second group, 23 patients presented with non-obstructing urinary stones. Flank pain was the commonest complaint and a concomitant history of gout was present in 6 patients. Hyperuricaemia was detected in 12 and hyperuricosuria in 19. All cases were managed by high fluid intake and oral sodium bicarbonate, with self-monitoring of urine pH, which was kept between 6.5 and 7.0. Allopurinol was administered in cases having hyperuricaemia and/or hyperuricosuria. Systemic alkali therapy in the form of intravenous molar lactate or sodium bicarbonate is effective and safe both in obstructive anuria and non-obstructive urinary uric acid stones.

Keywords:
Uric acid stones, Renal calculi, Anuria, Alkali therapy
This content is only available via PDF.
© 1992 S. Karger AG, Basel
1992
Copyright / Drug Dosage / Disclaimer
Copyright: All rights reserved. No part of this publication may be translated into other languages, reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording, microcopying, or by any information storage and retrieval system, without permission in writing from the publisher.
Drug Dosage: The authors and the publisher have exerted every effort to ensure that drug selection and dosage set forth in this text are in accord with current recommendations and practice at the time of publication. However, in view of ongoing research, changes in government regulations, and the constant flow of information relating to drug therapy and drug reactions, the reader is urged to check the package insert for each drug for any changes in indications and dosage and for added warnings and precautions. This is particularly important when the recommended agent is a new and/or infrequently employed drug.
Disclaimer: The statements, opinions and data contained in this publication are solely those of the individual authors and contributors and not of the publishers and the editor(s). The appearance of advertisements or/and product references in the publication is not a warranty, endorsement, or approval of the products or services advertised or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements.
You do not currently have access to this content.