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The aim of this study is to evaluate the prevalence of maternal complications derived from digoxin treatment and its relationship with digoxinemia, as well as its occurrence in relation to the different treatment doses and therapeutic schemes used. This is a retrospective observational study of women who received digoxin for the treatment of fetal tachyarrhythmia over a 10-year period at the University Hospital Virgen del Rocío (Seville). Data corresponding to the digoxin dose, its duration, serum digoxin levels and electrocardiographic parameters during follow-up were collected. Maternal side effects were reported, and its relationship to the treatment dose as well as digoxinemia. The study is accompanied by a narrative review of related literature. There were 10 cases eligible. During treatment, as least one symptom or sign was present in 30 % of cases, being in all cases digestive symptoms. In all those cases, the digoxin level was higher than established as therapeutic threshold (2 ng/mL), and all reversed within a maximum of 48 h after the dose decrease. Digoxinemia overdosing (> 2 ng/mL) was observed in 6 women (60 %), one of which reached the toxicity range (> 3 ng/mL). In all cases, normal range was achieved decreasing the dose of digoxin 0.25 mg every 24 h. No patient developed side effects with digoxinemia below 2 ng/mL. No electrocardiographic abnormalities appeared during treatment. Digoxin is a safe treatment for management of fetal tachyarrhythmias. Side effects appear frequently when serum digoxin level is over 2 ng/mL, but they are usually mild and self-limited. However, it remains advisable to monitor electrocardiographic changes and digoxinemia through the whole therapy to prevent serious complications related to digoxin toxicity. Copyright © 2020 Elsevier B.V. All rights reserved.

Citation

Ángel Chimenea, Lutgardo García-Díaz, Ana Méndez, Guillermo Antiñolo. Maternal effects induced by oral digoxin during treatment of fetal tachyarrhythmia: Case series and literature review. European journal of obstetrics, gynecology, and reproductive biology. 2021 Jan;256:354-357

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PMID: 33276280

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