Resource Use and Clinical Outcomes in Infants with Supraventricular Tachycardia Monitored with the Owlet Smart Sock

Abstract

ObjectivesTo describe the prevalence of Owlet Smartsock (OSS) use in infants with supraventricular tachycardia (SVT), and associated demographic and clinical characteristics of users, and to analyze the association of OSS use on medical resource utilization and clinical outcomes from emergency department (ED) encounters for SVT. Study designSingle-center, retrospective cohort study of infants with confirmed SVT, from 2015 to 2022. OSS users and non-users were compared across clinical and demographic parameters. Medical resource utilization (phone calls, office visits, ED visits) and outcomes (need for intensive care, length of stay, echocardiographic function, clinical appearance) were compared between OSS users and non-users. ResultsOf 133 infants with SVT, OSS was used by 31/133 (23%), purchased prior to SVT diagnosis in 5/31 (16%) of users. No demographic difference was found between OSS users and non-users. OSS users had more phone notes than non-users, (p =0.002) and more ED visits, (p=0.03) but the number of office visits and medication adjustments did not differ. During ED presentation, OSS users had better preserved left ventricular ejection fraction on echocardiogram (p=0.04) and lower length of hospital stay by a mean 1.7 days (p=0.02). ConclusionOSS is used by a portion of infants with SVT. It is associated with more frequent phone calls and ED visits, but lower length of stay and better-preserved cardiac function upon presentation.