University of Tasmania
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Clinical impact of genomic testing in patients with suspected monogenic kidney disease

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journal contribution
posted on 2023-05-20, 18:08 authored by Jayasinghe, K, Stark, Z, Kerr, PG, Gaff, C, Martyn, M, Whitlam, J, Creighton, B, Donaldson, E, Hunter, M, Jarmolowicz, A, Johnstone, L, Krzesinski, E, Lunke, S, Lynch, E, Nicholls, K, Patel, C, Prawer, Y, Ryan, J, See, EJ, Talbot, A, Trainer, A, Tytherleigh, R, Valente, G, Mathew WallisMathew Wallis, Wardrop, L, West, KH, White, SM, Wilkins, E, Mallett, AJ, Quinlan, C
Purpose: To determine the diagnostic yield and clinical impact of exome sequencing (ES) in patients with suspected monogenic kidney disease.

Methods: We performed clinically accredited singleton ES in a prospectively ascertained cohort of 204 patients assessed in multidisciplinary renal genetics clinics at four tertiary hospitals in Melbourne, Australia.

Results: ES identified a molecular diagnosis in 80 (39%) patients, encompassing 35 distinct genetic disorders. Younger age at presentation was independently associated with an ES diagnosis (p < 0.001). Of those diagnosed, 31/80 (39%) had a change in their clinical diagnosis. ES diagnosis was considered to have contributed to management in 47/80 (59%), including negating the need for diagnostic renal biopsy in 10/80 (13%), changing surveillance in 35/80 (44%), and changing the treatment plan in 16/80 (20%). In cases with no change to management in the proband, the ES result had implications for the management of family members in 26/33 (79%). Cascade testing was subsequently offered to 40/80 families (50%).

Conclusion: In this pragmatic pediatric and adult cohort with suspected monogenic kidney disease, ES had high diagnostic and clinical utility. Our findings, including predictors of positive diagnosis, can be used to guide clinical practice and health service design.


Publication title

Genetics in Medicine








Tasmanian School of Medicine


Lippincott Williams & Wilkins

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530 Walnut St, Philadelphia, USA, Pa, 19106-3621

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Licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

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  • Open

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Expanding knowledge in the biological sciences

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