Transient Fetal Nonimmune 2:1 Atrioventricular Block Possibly Secondary to Cannabis Exposure

Ananya Chandra, Sandra Waller, Ron Wakai, Victor Suarez, Janette Strasburger, Matthew L. Moehlmann

Graphical abstract Highlights•Transient AV block in utero is usually from structural or autoimmune causes.•Studies show cannabis crosses the placenta and affects cardiac function and rhythm.•Transient AV block from cannabis has been observed in adolescents and adults.•Consider cannabis as a cause of fetal AV block after excluding other etiologies.