The Open Rheumatology Journal




ISSN: 1874-3129 ― Volume 13, 2019

Sjögren’s, Renal Tubular Acidosis And Osteomalacia - An Asian Indian Series



Pulukool Sandhya*, 1, Debashish Danda 1, Simon Rajaratnam 2, Nihal Thomas 2
1 Department of Clinical Immunology and Rheumatology, Christian Medical College and Hospital, Vellore-632004, India
2 Department of Endocrinology, Diabetes and Metabolism, Christian Medical College and Hospital, Vellore-632004, India

Abstract

Objective:

To study the profile of Renal Tubular Acidosis (RTA) in Asian Indian patients with Primary Sjögren's Syndrome (pSS).

Methods:

The Electronic medical records of patients with a diagnosis of pSS seen between 2003 and 2010 at our tertiary care teaching hospital were screened for RTA. Clinical features, immunological profile, acid-base balance and electrolyte status, 25-hydroxyvitamin D (25(OH) D3) levels, histopathological changes in minor salivary gland biopsy samples and radiological findings were retrieved. RTA was diagnosed in cases of hyperchloremic metabolic acidosis with urinary pH values higher than 5.5. Those with known features suggestive of RTA including hypokalemic paralysis, hyperchloremia and nephrocalcinosis without acidosis were defined as incomplete RTA.

Results:

Of the 380 patients with clinically suspected pSS, 25 had RTA. The median age was 32 (18-60) years. Nineteen patients had complete RTA. Six had incomplete RTA. Only 10 patients (40%) had symptoms related to RTA at presentation. Sixteen patients (64%) had present or past history of hypokalemic paralysis. Pseudofractures were seen in 7 patients and an additional 2 had subclinical radiological osteomalacia. Majority of the patients (61.2%) had a normal 25(OH) D3 level. Those with osteomalacia had significantly lower serum phosphate, blood ph and higher alkaline phosphatase. Serum calcium and 25(OH) D3 levels were not significantly different between patients with osteomalacia and those without.

Conclusion:

Most patients were asymptomatic for RTA inspite of clinically overt and elicitable features. Skeletal manifestation was a common finding in patients with Sjögren and RTA, despite normal levels of 25 (OH) D3 in a majority.

Keywords: Osteomalacia, Pseudofractures, Renal Tubular Acidosis, Sjögren’s syndrome, Vitamin D..


Article Information


Identifiers and Pagination:

Year: 2014
Volume: 8
First Page: 103
Last Page: 109
Publisher Id: TORJ-8-103
DOI: 10.2174/1874312901408010103

Article History:

Received Date: 14/7/2014
Revision Received Date: 21/10/2014
Acceptance Date: 3/11/2014
Electronic publication date: 19 /12/2014
Collection year: 2014

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© Sandhya et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.


* Address correspondence to this author at the Department of Rheumatology and Clinical Immunology, Christian Medical College and Hospital, Vellore-632004, India; Tel: 9790521214; Fax: 91-416-2232035; E-mail: drsandhya.p123@gmail.com



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