Am J Surg 2016 Oct 19;212(4):740-747.e1. Epub 2016 Mar 19.
Department of Otolaryngology, Head and Neck Surgery, University of Cologne, Kerpener Straße 62, Cologne 50937, Germany.
Background: The prevalence of Frey's syndrome (FS) after superficial parotidectomy in correlation to the sternocleidomastoid muscle flap (SCMMF) interposition is analyzed.
Methods: A prospective nonrandomized controlled multicenter trial included 130 patients. During superficial parotidectomy, SCMMF was dissected, if excised specimens' volume exceeded 25 mL (SCMMF group). Follow-up examinations took place after 6, 12, and 24 months and included a Minor's test.
Results: SCMMF was dissected in 30 (23.1%) patients. A total of 104, 80, and 68 patients completed the 1st, 2nd, and the 3rd follow-up, respectively. FS was detectable with nonvarying prevalence (46.3%, 45.6%, and 43.4%, respectively) during follow-up. The prevalence was higher in the SCMMF group (59.9%) than in the non-SCMMF group (41.8%; P = .92). The sweating area increased during follow-up (P = .12). Overall, 89.5% of patients characterized FS as not disturbing after 2 years.
Conclusions: FS occurred with a steady and high prevalence after superficial parotidectomy. In particular, SCMMF did not lower the risk of FS.