Key result
SDMA rises earlier than creatinine during kidney decline and is unaffected by lean body mass.
Why the study?
Chronic kidney disease in cats and dogs is traditionally diagnosed late by increased serum creatinine, but earlier sensitive biomarkers like SDMA are needed.
Does Symmetric dimethylarginine (SDMA) testing improve the early diagnosis and staging of chronic kidney disease in cats and dogs compared to serum creatinine?
Does Symmetric dimethylarginine (SDMA) testing improve the early diagnosis and staging of chronic kidney disease in cats and dogs compared to serum creatinine?
SDMA is a sensitive biomarker for the early diagnosis and staging of chronic kidney disease in cats and dogs, offering advantages over traditional creatinine testing.
Answers are grounded in this paper and cite their sources.
SDMA testing may enable earlier CKD detection in cats and dogs; leaves open prospective validation before routine clinical adoption.
Chronic kidney disease (CKD) is a common condition in cats and dogs, traditionally diagnosed after substantial loss of kidney function when serum creatinine concentrations increase. Symmetric dimethylarginine (SDMA) is a sensitive circulating kidney biomarker whose concentrations increase earlier than creatinine as glomerular filtration rate decreases. Unlike creatinine SDMA is unaffected by lean body mass. The IDEXX SDMA test introduces a clinically relevant and reliable tool for the diagnosis and management of kidney disease. SDMA has been provisionally incorporated into the International Renal Interest Society guidelines for CKD to aid staging and targeted treatment of early and advanced disease.
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Relford et al. (2016) conducted a review in Chronic kidney disease (CKD) in cats and dogs. Symmetric dimethylarginine (SDMA) test vs. Creatinine was evaluated. Symmetric dimethylarginine (SDMA) is a sensitive kidney biomarker in cats and dogs that increases earlier than creatinine as glomerular filtration rate decreases and is unaffected by lean body mass.
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