title: Tissue reaction to intracavitary electrodes: effect on duration and efficiency of unipolar pacing in patients with A-V block.
mesh_terms: D000368:Aged; D003327:Coronary Disease / Q000473:pathology; D004567:Electrodes, Implanted / Q000009:adverse effects*; D004719:Endomyocardial Fibrosis / Q000209:etiology / Q000473:pathology; D005260:Female; D005547:Foreign Bodies; D005549:Foreign-Body Reaction / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000473:pathology; D009206:Myocardium / Q000473:pathology*; D010138:Pacemaker, Artificial / Q000009:adverse effects*