atrial fibrillation [DOID:0060224]
A heart conduction disease that is characterized by uncoordinated electrical activity in the heart's upper chambers (the atria), which causes the heartbeat to become fast and irregular and has symptoms palpitations, weakness, fatigue, lightheadedness, dizziness, confusion, shortness of breath and chest pain.
Andersen-Tawil syndrome [DOID:0050434]
A long QT syndrome that has_material_basis_in autosomal dominant inheritance of a mutation in the KCNJ2 gene which disrupts the rhythm of the heart's lower chambers (ventricular arrhythmia) and results_in an unusually small lower jaw (micrognathia), low-set ears, and an abnormal curvature of the fingers called clinodactyly.
Elsahy-Waters syndrome [DOID:0080631]
A syndrome that is characterized by brachycephaly, facial asymmetry, marked hypertelorism, proptosis, blepharochalasis, midface hypoplasia, broad nose with concave nasal ridge, and prognathism; radicular dentin dysplasia with consequent obliterated pulp chambers, apical translucent cysts, recurrent infections, and early loss of teeth; vertebral fusions, particularly at C2-C3; and moderate mental retardation.