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• W1719992761 abstract "Obstructive sleep apnea syndrome (OSAS) occurs frequently among adults and children. The fi rst-line treatments in adults are continuous positive airway pressure (CPAP) or mandibular retaining devices (MRDs), but the long-term effi cacy is only around 60%. Uvulopalatopharyngoplasty (UPPP) has been criticized for lack of effi cacy and a high degree of complications. In children the fi rst-line treatment is adenotonsillectomy. This thesis evaluates two major aspects of OSAS: fi rstly, UPPP in adult OSAS patients with failing CPAP and MRD treatment regarding effi cacy, safety, satisfaction and side effects in Papers I and II. Secondly, the relationship between sleep disordered breathing (SDB) in children and adolescents, defi ned as fi rst hospital diagnoses of OSAS, tonsillar and adenotonsillar hypertrophy (ATH), and parental diagnoses of OSAS, occupation and family socioeconomic status (SES) in Papers III and IV. In paper I, we measured changes in numbers of oxygen desaturations 4% (ODI4) with home based sleep apnea registrations and daytime sleepiness with validated questionnaires (Epworth sleepiness scale, ESS), as well as complication and satisfaction rate, before and 1 year after UPPP in 158 patients. There was a signifi cant decrease in the ODI4 from median 23 (range 6-100) to 8 (range 0-60). The criteria of success (50% reduction and ODI<20), was 64% and UPPP reduced the nightly respiratory disturbances to a mean of 60 %. The ESS value decreased signifi cantly from median 12 (range 0-21) to 6 (0-22). Four of 158 patients (2.5%) had serious postoperative complications, 88% of the patients were satisfi ed and there was no mortality. In Paper II, a pilot study without previous power calculation, 47 of the patients in Paper I answered a questionnaire before and one year after UPPP, as well as 15 nonsnoring controls. The median score of the patients was unchanged from 5 (range 0–17) to 5 (0–19), compared to 1 (0–3) for controls. In Paper III we estimated the standardized incidence ratio (SIR) of hospitalization, 1997–2007, for OSAS and SDB caused by ATH in children (aged 0–18 years) with a parent affected by OSAS and compared this risk with that of children with OSAS and SDB without a parent affected by OSAS. We used the MigMed2 database which includes the Swedish Hospital Discharge Register. After accounting for SES, age, and geographic region, the SIRs of OSAS in boys and girls with a parent affected by OSAS were 3.09 (95% CI 1.83–4.90) and 4.46 (95% CI 2.68–6.98), respectively. The SIRs of ATH in boys and girls with a parent affected by OSAS were 1.82 (95% CI 1.54–2.14) and 1.56 (95% CI 1.30–1.87), respectively. In Paper IV we analyzed the odds ratio (OR) in individuals aged 0–18 years, 1997– 2007, for fi rst hospital diagnoses of OSAS and ATH by family SES and parental occupation. The MigMed2 database was linked to the Swedish census. There were a total of 34 933 children with a fi rst hospital diagnosis of OSAS and ATH. The ORs were increased in individuals with low family SES, defi ned as family income and maternal education. Increased ORs were found among 14 maternal and 13 paternal occupational groups. Decreased ORs were found for 10 paternal occupational groups. In paper III and IV there was no data available for individual risk factors and confounders such as BMI or passive smoking. In summary, UPPP reduced the nightly respiratory disturbances to a mean of 60%, halved the daytime sleepiness, did not change the median scores of pharyngeal disturbances, and may be a safe alternative in selected OSAS patients. Swedish children with a parent affected by OSAS had a signifi cantly higher risk of hospitalization for OSAS and SDB defi ned as ATH. Children with a low family SES and in some occupational groups were associated with an increased OR for hospitalization for OSAS and SDB. LIST OF PUBLICATIONS This thesis is based on the following papers, which will be referred to in the text by their roman numerals: I. Lundkvist K, Januszkiewicz A, Friberg D. Uvulopalatopharyngoplasty in 158 OSAS patients failing non-surgical treatment. Acta Oto-Laryngologica, 2009; 129: 1280-1286. II. Lundkvist K, Friberg D Pharyngeal disturbances in OSAS patients before and 1 year after UPPP. Acta Oto-Laryngologica, 2010; 130: 1399–1405. III. Lundkvist K, Sundquist K, Li X, Friberg D Familial risk of sleep-disordered breathing. Sleep Medicine 13 (2012) 668–673. IV. Lundkvist K, Sundquist K, Li X, Friberg D Family Socioeconomic Status and Parental Occupation as Risk Factors for Sleep-Disordered Breathing in Swedish Children and Adolescents. Submitted. Papers I, II and III are reproduced with the kind permission of the copyright holders. LIST OF ABBREVIATIONS ATH Adenotonsillar and tonsillar hypertrophy AHI Apnea hypopnea index" @default.
• W1719992761 created "2016-06-24" @default.
• W1719992761 creator A5013067005 @default.
• W1719992761 date "2012-08-13" @default.
• W1719992761 modified "2023-09-24" @default.
• W1719992761 title "Pharyngeal surgery and epidemiology in sleep apnea" @default.
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