Clindamycin in Recurrent Group A Streptococcal Pharyngotonsillitis– An Alternative to Tonsillectomy?

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Abstract
Fifty-three patients with bacterial treatment failure after a 10-day course of treatment with phenoxymethyl penicillin (pcV) for group A streptococcal (GAS) pharyngotonsillitis were randomly assigned to continued treatment with pcV, or to treatment with clindamycin instead. The patients were then followed for 1 year with throat cultures and clinical examination every third month and in the event of symptoms of sore throat. In the first 3-month period, 15/22 patients in the pcV group yielded one or more positive cultures for GAS, all of the same T-type as in the original throat culture, as compared to 3/26 in the clindamycin group (p < 0.001). All three cases in the clindamycin group were due to a new T-type and thus were re-infections. In the pcV group, owing to repeated treatment failure, 12/22 patients were switched to treatment with clindamycin within the 3-month period following the second treatment. During the remainder of the 1-year follow-up period, sporadic cases of GAS-positive throat cultures occurred in both groups, but there was no significant difference in frequency between the two groups. It is concluded that, in patients with GAS pharyngotonsillitis and failure after pcV treatment, a 10-day course of clindamycin can protect the patient from recurrence for at least 3 months and might be an alternative to tonsillectomy.

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