Obese obstructive sleep apnea patients with tonsil hypertrophy submitted to tonsillectomy

Obese obstructive sleep apnea patients with tonsil hypertrophy submitted to tonsillectomy

Author Martinho, Fernanda Louise Autor UNIFESP Google Scholar
Zonato, Adriane Iurck Autor UNIFESP Google Scholar
Bittencourt, Lia Rita Azeredo Autor UNIFESP Google Scholar
Soares, Maria Claudia Mattos Autor UNIFESP Google Scholar
Silva, R.f.n. Autor UNIFESP Google Scholar
Gregório, Luiz Carlos Autor UNIFESP Google Scholar
Tufik, Sergio Autor UNIFESP Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Abstract The physiopathology of obstructive sleep apnea-hypopnea syndrome (OSAHS) is multifactorial and obesity has been shown to be one of the main factors correlated with its occurrence. In obese patients with anatomical alterations of the upper airways it is often difficult to predict success for surgical correction since obesity is a limiting factor. Therefore, the aim of the present study was to evaluate the results of tonsillectomy in a specific group of patients, i.e., obese OSAHS patients with tonsil hypertrophy. Seven OSAHS patients with moderate obesity with obstructive palatine tonsil hypertrophy were submitted to tonsillectomy. All patients were submitted to pre- and postoperative appraisal of body mass index, otorhinolaryngology examination and polysomnography. Patients' average age was 36.4 ± 10.3 years and average preoperative body mass index was 36.6 ± 6.3 kg/m². Postoperative weight did not differ significantly from preoperative weight (P = 0.27). Average preoperative apnea and hypopnea index (AHI) was 81 ± 26/h and postoperative AHI was 23 ± 18/h (P = 0.0005). Average preoperative minimum oxyhemoglobin saturation (SaO2 min) was 69 ± 14% and the postoperative value was 83 ± 3% (P = 0.038). In relation to AHI, 6 (86%) of the 7 patients studied showed a reduction of 50% in relation to preoperative level and of these, 4 (57%) presented AHI of less than 20%. Only one patient presented a reduction of less than 50% in AHI, but even so showed improved SaO2 min. Tonsillectomy treatment for OSAHS in obese patients with obstructive palatine tonsil hypertrophy caused a significant reduction in AHI, with improvement in SaO2 min. This procedure could be eventually considered as an option of treatment for obese OSAHS patients with significant tonsil hypertrophy when continuous positive air pressure therapy is not possible as the first choice of treatment.
Keywords Sleep apnea syndrome
Apnea and hypopnea index
Language English
Date 2006-08-01
Published in Brazilian Journal of Medical and Biological Research. Associação Brasileira de Divulgação Científica, v. 39, n. 8, p. 1137-1142, 2006.
ISSN 0100-879X (Sherpa/Romeo, impact factor)
Publisher Associação Brasileira de Divulgação Científica
Extent 1137-1142
Origin http://dx.doi.org/10.1590/S0100-879X2006000800017
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000239936900017
SciELO ID S0100-879X2006000800017 (statistics in SciELO)
URI http://repositorio.unifesp.br/handle/11600/3188

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