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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/215633
Peripartum lithium management: Early maternal and neonatal outcomes
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Background: It has been suggested that a 30-50% lithium dose reduction or lithium discontinuation 24-48h before delivery could minimize neonatal complications. We investigated the maternal lithemia changes around delivery after a brief discontinuation, the placental transfer of lithium at delivery, and the association between neonatal lithemia at delivery and acute neonatal outcomes. Methods: A retrospective observational cohort study was conducted in a teaching hospital (November/2006-December/2018). Data was extracted from the medical records. We included psychopathologically stable women, with a singleton pregnancy, treated with lithium in late pregnancy, with at least one maternal and neonatal lithemia at delivery. Lithium was discontinued 12h before a scheduled caesarea section or induction, or at admission day to hospital birth; and restarted 6-12h post. Results: Sixty-six mother-infant pairs were included, and 226 maternal and 66 neonatal lithemias were obtained. We found slight maternal lithemia fluctuations close to 0.20 mEq/L, and early postpartum relapse of 6%. The mean (SD) umbilical cord/mother intrapartum lithemia ratio was 1.10 (0.17). Fifty-six percent of neonates presented transient acute complications. Neonatal hypotonia was the most frequent outcome (N=15). Mean lithemia were 0.178 mEq/L higher in those with hypotonia than in those without (p=0.028). Limitations: It is a retrospective cohort of a moderate sample size of healthy uncomplicated pregnancies and results cannot be generalized to all pregnant treated with lithium. Conclusions: Lithium transfers completely across the placenta. A brief predelivery lithium discontinuation was associated with slight maternal lithemia fluctuations. Neonates exposed intrautero to lithium present frequent but transient acute effects.
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IMAZ, M.luisa, TORRA, Mercè, LANGOHR, Klaus, ARCA DÍAZ, Gemma, SOY MUNER, Dolors, HERNÁNDEZ, Ana sandra, GARCÍA ESTEVE, Luisa, VIETA I PASCUAL, Eduard, MARTÍN SANTOS, Rocío. Peripartum lithium management: Early maternal and neonatal outcomes. _Journal of Affective Disorders_. 2024. Vol. 366, núm. 326-334. [consulta: 24 de gener de 2026]. ISSN: 0165-0327. [Disponible a: https://hdl.handle.net/2445/215633]