Clinical predictors of an abnormal ultrasound in patients presenting with suspected nephrolithiasis

Shafi, Salman Thair and Anjum, Roshina and Shafi, Tahir (2017) Clinical predictors of an abnormal ultrasound in patients presenting with suspected nephrolithiasis. Pakistan Journal of Medical Sciences, 33 (3). ISSN 1681-715X

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Abstract

Objective: To determine any clinical features associated with an abnormal ultrasound in patients with suspected nephrolithiasis in an out-patient setting.

Methods: The study design was cross-sectional in nature. The study was conducted at an out-patient nephrology department of a tertiary care facility over a 3 month period. Patients included in the study were 18-80 years old, who presented with unilateral flank or costovertebral angle pain with or without other clinical features suggestive of renal or ureteric calculus based on clinician’s judgement. Every patient’s history was reviewed to obtain information on age, gender, location and radiation of pain, onset, severity and nature of pain, associated urinary and systemic symptoms and past history of nephrolithiasis. An ultrasound was considered to be abnormal if there was documented presence of renal or ureteric stone and/or unilateral hydronephrosis.

Results: A total of 209 patients were included in the study. Of these patients, 126 (60.3%) were males and 83 (39.7%) were females, 60 (28.7%) had prior history of nephrolithiasis. Ultrasound was abnormal in 110 patients (52.9%). On a multivariate logistic regression analysis, only past history of nephrolithiasis (OR 3.3, 95% CI 1.65-6.7) was associated with an abnormal ultrasound.

Conclusion: In the absence of any significant clinical predictors use of ultrasound is justified in patients with suspected nephrolithiasis especially in those with prior history of stones.

Item Type: Article
Subjects: Journal Eprints > Medical Science
Depositing User: Managing Editor
Date Deposited: 26 Apr 2023 04:53
Last Modified: 02 Feb 2024 04:17
URI: http://repository.journal4submission.com/id/eprint/1856

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