PT - JOURNAL ARTICLE AU - Tseu, F L AU - Morley, C A AU - Mackintosh, A F TI - Oral xamoterol in patients with sinoatrial disease. AID - 10.1136/hrt.56.5.469 DP - 1986 Nov 01 TA - British Heart Journal PG - 469--472 VI - 56 IP - 5 4099 - http://heart.bmj.com/content/56/5/469.short 4100 - http://heart.bmj.com/content/56/5/469.full SO - Heart1986 Nov 01; 56 AB - Twelve patients with sinoatrial disease were assessed while on oral xamoterol (200 mg twice daily) and placebo by a double blind randomised, crossover trial that lasted four weeks. Nine of the patients had been referred for permanent pacing. Xamoterol produced favourable changes in the number of pauses and the mean heart rate in six patients. Another patient deteriorated on xamoterol. Six patients were started on long term xamoterol. Xamoterol produces short term electrocardiographic improvement in some, but not all, patients with symptomatic sinoatrial disease.