Dados do Trabalho

Título

Presence of fragmented and poor quality sleep in patients with snoring and nasal obstruction

Introdução

The obstructive sleep apnea (OSA) is a sleep disorder characterized by the complete or partial recurrent breath blockage that affects directly the sleep quality. Among the consequences of OSA are the non-renovated and fragmented sleep.

Objetivo

Evaluate which impact snoring and nasal obstruction (NO) have in the quality and fragmentation of sleep, through parameters obtained in polysomnography.

Métodos

245 patients that went through polysomnography were evaluated saying they NO between 2018 and 2020. In addition to polysomnography and the Epworth Sleepiness Scale, the patients answered a pre-sleepiness questionary which had data about sleep, sex, age, symptoms during the day and diseases.

Resultados

We analysed the questionaries obtained from the 245 patients with NO and divided them into two groups: A – patients who had snoring and B – patients who did not have snoring. Following that, we analysed the polysomnography from group A and B, and took notes of the parameters that indicated quality of sleep: sleep efficiency (SE) and micro wakings (MW). Patients with index of MW ≥ 10 and or patients with SE ≤ 85% were considered having bad sleep quality. So, 219 patients were from group A and 26 were from group B. When we analysed the sleep patterns from group A, we observed that 177 patients (80,82%) had bad sleep quality and in group B 21 patients (80,76%) showed a bad quality of sleep. As we juxtaposed group A and B per group age, the more prevalent: A – 77,63% between 20 and 60 years old; B – 65,38% between 20 and 60 years old; Sorting by sex groups: A – 60,73% men and 39,27% women and B – 61,53% men and 38,47% women. And finally, the results with the Body Mass Index (BMI) the most prevalent were: A - Overweight ≥ 25 a ≤ 29,99 Kg/m² (43,38%); and B – normal ≥ 18,5 and ≤ 24,99 kg/m² (42,30%).

Conclusões

We concluded that despite the majority of patients with snoring and NO having presented bad quality sleep, the snoring does not appear to be the major factor influencing in the quality of the sleep, for the patients who have NO and do not snore also have a predominancy in bad sleep quality. So, it is likely that the fact of having only NO not related to snoring, be in itself a factor that augments the chance of having bad quality sleep. Besides this, it was possible to observe this characteristic prevailing more in patients with bad quality sleep: men, within the age group between 20 and 59 years old and BMI ≥ 25 kg/m².

Palavras -chave

fragmented sleep; snoring; Nasal obstruction and sleep apnea