🌐EnglishEnglishEspañolFrançaisItalianoPortuguêsالعربية中文日本語EntityQ3640986· pop 10· linked from 188 articlesfirst-degree atrioventricular blockdisease of the electrical conduction system of the heart in which the PR interval is lengthened beyond 0.20 secondsConnectionsthird-degree atrioventricular blockEntityangina pectorisEntityCategoriesCardiac arrhythmia