• S Lennquist, E Jörtsö, B Anderberg, and S Smeds.
• Surgery. 1985 Dec 1; 98 (6): 1141-7.

AbstractSubtotal thyroid resection or hemithyroidectomy was performed for hyperthyroidism on two groups of patients: 84 treated before surgery with antithyroid drugs and thyroxin and 111 given only beta-blocking agents before surgery. These two patient groups were compared with reference to preoperative medication, operation, immediate postoperative course, and late results, with follow-up for 3 to 7 years. The advantages of beta-blockers compared with conventional antithyroid medication were lack of adverse reactions, rapid effect of treatment, considerably shortened preoperative treatment time, and fewer outpatient visits, with consequent financial benefit. No disadvantages of beta-blockers were found except that 18% of the patients required additional propranolol in the immediate postoperative period. There were no surgical complications in either group other than a mild persistent hypocalcemia in two patients from the beta-blocked group. The serum thyrotropin levels during the first 6 postoperative months were significantly higher in the patients treated with antithyroid drugs. The frequency of postoperative thyroid dysfunction showed no intergroup difference during the observation period. Signs of hypofunction, necessitating thyroxin supplementation, were observed in 28.6% of patients in the antithyroid drug/thyroxin group and in 25.7% in the beta-blocker group. Toxic recurrence occurred in 1.8% of the group that received beta-blockers and in 1.2% of the other patients. The study demonstrated that beta-adrenoceptor blockade is a safe method for preoperative treatment in hyperthyroidism, with advantages for patients and regarding costs.

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