title: First- and second-degree A-V heart block with rapid eye movement sleep.
mesh_terms: D001145:Arrhythmias, Cardiac / Q000150:complications; D004562:Electrocardiography; D004569:Electroencephalography; D004585:Electrooculography; D005500:Follow-Up Studies; D006327:Heart Block; D006333:Heart Failure / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012895:Sleep, REM