There are multiple definitions:

1. paraventricular [hypothalamic] nucleus(English)

   • AMPA, AOF, ERß, HFpEF, NMDA, ROS, VCD
   • Anatomy, Brain (dys)function, Neurons, Ovary and uterus, Endocrinology, Cardiology
   • https://doi.org….1159/000446073
   • https://doi.org…eart.00733.2023

2. pulmonary vein narrowing(English)

   • may refer to stenosis after contemporary atrial fibrillation ablation
   • AF, CB, PVS, RFC
   • Pulmonology, Medical imaging, Vascular disease
   • https://doi.org…ircj.CJ-17-1324