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  • Title: [An update on tonsillotomy studies].
    Author: Windfuhr JP, Savva K.
    Journal: HNO; 2017 Jan; 65(1):30-40. PubMed ID: 27670422.
    Abstract:
    BACKGROUND: Tonsillotomy procedures (TT) are being increasingly performed owing to the low postoperative morbidity compared with extracapsular tonsillectomy (TE). Patients may experience regrowth of tonsillar tissue or tonsillitis in the tonsillar remnants eventually resulting in a secondary tonsillectomy. OBJECTIVES: A review of the literature was undertaken to evaluate the current indications and contraindications, surgical instruments, risks of surgery, and the need for further research related to TT. MATERIAL AND METHODS: A search of the PubMed database was performed with the following terms: "tonsillotomy," "partial tonsillectomy," "subtotal tonsillectomy," "intracapsular tonsillectomy," "RFITT," and "tonsil ablation." Filters included language (English; German) and publication date (1960-2016). Articles were excluded if they were not related to tonsil surgery, did not provide clinical data, dealt with uncommon surgical techniques, or presented only data from polysomnographic studies. RESULTS: In all, 104 papers encompassing 97 studies and seven national surveys were eligible for analysis. In total, 13,270 patients had undergone TT and were compared with 11,485 patients after TE. Partial resection of the tonsils was most commonly accomplished with a microdebrider (51.5 %), and less frequently with coblation (20.5 %), radiofrequency (9.1 %), CO2 laser (6.6 %), or other surgical instruments. The age in the study groups ranged between 6 months and 78 years (median: 6.0 years). The prevailing indication for surgery was upper airway obstruction resulting from tonsillar hyperplasia with (n = 20) or without (n = 60) a history of tonsillits. In seven studies, TT was explicitly performed to resolve tonsillitis, while three authors did not specify the indication for surgery. The hemorrhage rate after TT was 0.2 % on average. CONCLUSION: TT is predominantly indicated for tonsillar hyperplasia, with or without tonsillitis. Restrictions related to age or surgical instruments are not reported in the literature data. Data concerning operation time, intraoperative bleeding, and outcome favor TT over TE. The median values for regrowth (3.0 %), postoperative tonsillitis (2.85 %), and secondary TE (1.37 %) emphasize the high success rate of TT. Further research utilizing a uniform terminology is mandatory to clarify the benefit of TT over TE in the long term and to resolve sleep-related breathing disorders resulting from tonsillar hyperplasia or tonsillitis.
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