Wharrad H J, Birmingham A T, Wilson C G, Williams E J, Roland J M
Br J Clin Pharmacol. 1984 Sep;18(3):317-24. doi: 10.1111/j.1365-2125.1984.tb02470.x.
The effect of the withdrawal of long-term beta-adrenoceptor blockade on pulse rate and finger tremor was studied in 27 patients who had been treated for 2 years following an uncomplicated myocardial infarction with either atenolol, propranolol or placebo. During treatment, pulse rate was significantly lower in patients treated with propranolol or atenolol compared with placebo. Compared with the response in the placebo group the mean increase in tremor on withdrawal of propranolol was statistically significant for postural and for work tremor in both hands. A significant increase in tremor on withdrawal of atenolol occurred only in the postural position and in a narrow frequency band (left hand, 7-11 Hz; right hand, 7-9 Hz). The differences in the effect on tremor of withdrawal of treatment with propranolol or atenolol in doses which produced similar reductions in heart rate, emphasise the beta 2 classification of peripheral receptors associated with normal muscle tremor but do not exclude the involvement of beta 1-adrenoceptors.
在27例曾患无并发症心肌梗死并接受阿替洛尔、普萘洛尔或安慰剂治疗2年的患者中,研究了长期β-肾上腺素受体阻滞剂撤药对脉搏率和手指震颤的影响。治疗期间,与安慰剂相比,接受普萘洛尔或阿替洛尔治疗的患者脉搏率显著降低。与安慰剂组相比,停用普萘洛尔后震颤的平均增加在双手的姿势性震颤和工作性震颤方面具有统计学意义。停用阿替洛尔后震颤仅在姿势位且在狭窄频段(左手7 - 11赫兹;右手7 - 9赫兹)显著增加。在产生相似心率降低的剂量下,普萘洛尔或阿替洛尔撤药对震颤影响的差异,强调了与正常肌肉震颤相关的外周受体的β₂分类,但不排除β₁ - 肾上腺素受体的参与。