Gadolinium during human pregnancy following administration of gadolinium chelate before pregnancy.

Gadolinium (Gd), a toxic rare earth element, has been shown to dissociate from chelating agents and bioaccumulate within tissues, raising concerns about the possibility of their remobilization during pregnancy with subsequent free Gd exposures to developing fetuses. Gd chelates are among the most commonly used magnetic resonance imaging (MRI) contrast agents. This investigation was undertaken after the detection of elevated Gd (800-1000× higher than the usual rare earth element levels) in preliminary unpublished studies from the placentae of subjects in the NIH ECHO/UPSIDE Rochester Cohort Study and unpublished studies from placentae analyzed in formalin-fixed placental specimens from Surgical Pathology at the University of Rochester. Fifteen pregnancies with elevated Gd were studied (12 first pregnancies and 3 second pregnancies). Maternal bloods were collected from all three trimesters, maternal, and cord (fetal) bloods at delivery as well as placental tissue. Breastmilk was also collected from selected mothers. It was determined that Gd was present in maternal bloods from all three trimesters, and in cord bloods and breastmilk in both first and second pregnancies. These results emphasize the need to fully appreciate the implications of pre-pregnancy exposure to Gd chelates and its potential effects on maternal and fetal health.

Who Makes the Choice: Ethical Considerations Regarding Instituting Breastfeeding in a Mother Who Has Compromised Mental Capacity.

This case reports an ethical dilemma in which a mother who had recently delivered a baby through cesarean section after sustaining life-threatening injuries in a car accident did not have documented wishes whether she wanted to breastfeed. Her medical condition rendered her temporarily mentally incapacitated and critically ill, and the lactation medicine team was consulted about whether lactation choice should be preserved by pumping. Complicating considerations in this case were (1) lack of family or designated decision-makers available at the time of injury and emergent delivery, (2) lack of prenatal care, and (3) complex social situation, including prior history of illicit substance use, and state removal of other children into foster care. This case raises important ethical considerations regarding breastfeeding decision-making when a mother is incapable of making the decision, and if there is an intrinsic right for an infant to be breastfed in situations where maternal choice to lactate or to formula feed is unknown. Ultimately, the mother chose to discontinue breastfeeding once she was able to voice her own opinion. The issues discussed in this study may be relevant for future cases when providing guidance on the ethical argument to preserve maternal choice when a mother is critically ill and mentally incapacitated.

The Importance of Supervising Toothbrush Usage for Young Children at Risk of Lead Toxicity.

Lead exposure in childhood causes lasting deleterious health effects through multi-system organ toxicity, including in brain, skeletal system, and oral cavity. We report a case that illustrates the imperative for providers to give specific anticipatory guidance on supervising toothbrush usage for young children. A healthy 18-month-old male presented for routine well-child care and had an unremarkable physical exam and developmental assessment. Two days after his routine visit, his blood lead test result was more than 180 mcg/dL (acceptable level is less than five mcg/dL). Upon review of his home environment, the mode of exposure was determined to be the child rubbing his toothbrush against the window well and putting the toothbrush in his mouth, thus causing exposure to lead dust. Health care and dental providers who advocate for toothbrushing have a responsibility to provide specific guidance on toothbrush usage for toddlers with hand-to-mouth behavior.