"Atrioventricular block, AV block or heart block is a conduction disturbance and a type of arrhythmia where the impulse transmission between the cardiac atria and ventricles is either transiently or permanently delayed or completely blocked 1."
"1st degree: prolongation of the PR interval (PR >200 ms) 2"
"1st degree: prolongation of the PR interval (PR >200 ms) 2"
"Mobitz type 1 (Wenckebach): progressive prolongation of the PR interval ultimately ending in a non-conducted P wave"
"Mobitz type 2: intermittent non-conducted P waves with constant PR and stable PP intervals"
"Mobitz type 2: intermittent non-conducted P waves with constant PR and stable PP intervals"
"3rd degree: absence of atrioventricular nodal conduction resulting in a pattern where P waves are unrelated to the QRS complexes"
"Mobitz type 1 (Wenckebach): progressive prolongation of the PR interval ultimately ending in a non-conducted P wave"
"Mobitz type 2: intermittent non-conducted P waves with constant PR and stable PP intervals"
"Possible symptoms include fatigue, exercise intolerance, dyspnoea, chest pain, dizziness, syncope and cardiac arrest. The presence and frequency of clinical symptoms also depend on degree 1."
"There are various possible functional and structural causes that are also related to the degree of atrioventricular block:"
"History and etymology"