title: [Clinical significance of intrinsic sympathomimetic activity of the beta blocker carteolol. II: Comparative studies of carteolol and pindolol in patients with bradycardia].
abstract: Completing previous studies in patients with sinus bradycardia (Med. Klin. 82 [1987], 647-650) we compared metoprolol with carteolol and pindolol, pindolol with carteolol, no treatment with carteolol (in two groups) in five series of the paired comparisons of Holter-ECG each. With change from metoprolol to carteolol or pindolol (dose ratio 10:1) lowest heart rate on Holter-ECG increased by 28 or 29% without change of exercise heart rate. Direct comparison of pindolol and carteolol revealed a very similar heart rate profile, indicating equipotent beta blockade and ISA. In patients with previous beta blocker induced bradycardia, carteolol did not change a normal resting heart rate off treatment. However, in patients with spontaneous sinus bradycardia carteolol increased lowest heart rate (+14%, due to overriding ISA) and lowered exercise heart rate (-15%, due to overriding beta blockade). A beta blocker induced sinus bradycardia consistently improved with change of treatment to carteolol and pindolol. With caution carteolol and pindolol may also be used despite spontaneous sinus bradycardia.
authors.forename: G
authors.initials: G
authors.lastname: Lohmöller
authors.forename: M
authors.initials: M
authors.lastname: Middeke
authors.forename: C
authors.initials: C
authors.lastname: Mrowka
authors.forename: C
authors.initials: C
authors.lastname: Pötzl
authors.forename: W
authors.initials: W
authors.lastname: Renner
authors.forename: W
authors.initials: W
authors.lastname: Zoller
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001919:Bradycardia / Q000188:drug therapy*; D002354:Carteolol / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000294:innervation*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D008297:Male; D008875:Middle Aged; D010869:Pindolol / Q000627:therapeutic use*; D011412:Propanolamines / Q000627:therapeutic use*; D013564:Sympathetic Nervous System / Q000187:drug effects*
chemical_list: D011412:Propanolamines; D002354:Carteolol; D010869:Pindolol
vernacular_title: Klinische Bedeutung der ISA des Betablockers Carteolol. Teil II: Vergleichende Untersuchungen von Carteolol und Pindolol bei Patienten mit Bradykardie.