Key result
Routine diagnostic testing in pediatric uncomplicated SVT yields clinically significant results in ~1% of encounters.
Why the study?
Patients with SVT often undergo extensive diagnostic testing in the emergency department, but the clinical significance of these results is unclear.
Does routine diagnostic testing yield clinically significant results in pediatric patients presenting with uncomplicated supraventricular tachycardia?
Observational (n=40)
No
Does routine diagnostic testing yield clinically significant results in pediatric patients presenting with uncomplicated supraventricular tachycardia?
Routine laboratory and radiographic testing in pediatric patients presenting to the emergency department with uncomplicated SVT has very low clinical yield and is likely unwarranted.
Answers are grounded in this paper and cite their sources.
May support limiting routine testing in uncomplicated pediatric SVT; leaves open prospective validation before practice change.
BACKGROUND: Supraventricular tachycardia (SVT) is the most common arrhythmia in the pediatric population. Patients often present to the emergency department and undergo extensive diagnostic assessment. The objective of this study is to determine the frequency of diagnostic studies obtained in such patients and to assess clinical significance of these results. METHODS: A retrospective study was performed from 2011 to 2018 in a single-center ED, including patients 21 years of age or younger presenting with SVT without shock. RESULTS: A total of 40 patients with 92 encounters were included for analysis. The mean age was 8.58 (±5.51) years; 55% female. A total of 67.4% underwent serologic laboratory evaluation, of which 8 (12.9%) had any abnormality. Only one was deemed clinically significant to warrant intervention. Nearly 30% of patients underwent chest radiography, with no clinically significant findings. CONCLUSIONS: Patients undergoing ED management of uncomplicated SVT are likely to undergo laboratory investigation and unlikely to have abnormal studies impacting their care. Given the associated risk of false-positive studies, the discomfort to the patient and parent, and cost of these studies, routine laboratory or radiographic investigation in this population may be unwarranted.
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A 2022 study conducted an observational in Supraventricular tachycardia (n=40). Diagnostic testing (laboratory and radiographic) was evaluated on Frequency of diagnostic studies and clinical significance of results. Routine diagnostic testing in pediatric patients with uncomplicated SVT yielded clinically significant results in only 1 of 92 encounters, suggesting such testing may be unwarranted.
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