RESEARCH PAPER
Effect of sleep disorders on the incidence of paroxysmal atrial fibrillation
1
Katedra i Klinika Kardiologii, Uniwersytet Medyczny w Lublinie
2
Oddział Chorób Wewnętrznych z Pododdziałem Kardiologii, Szpital Powiatowy w Strzyżowie
3
Katedra i Zakład Medycyny Rodzinnej, Uniwersytet Medyczny w Lublinie
Med Og Nauk Zdr. 2012;18(1):27-30
KEYWORDS
ABSTRACT
Introduction:
Atrial fibrillation (atrial fibrillation – AF) is the most common supraventricular arrhythmia, which occurs in about 1% of adults. The aim of the study was to assess the relationship between sleep disorders and incidence of paroxysmal AF.
Material and Methods:
The study covered 51 patients with the onset of AF during the night hours (AF-night, mean age 60.8 ± 9.5), and 51 patients in whom the beginning of AF occurred exclusively during the daytime (AF-day, mean age 61.1 ± 11.2). All patients were hospitalized due to the occurrence of a subsequent episode of paroxysmal AF. Clinical data, biochemical parameters, and the results of questionnaires assessing sleep disturbances were taken into consideration.
Results:
The groups examined did not differ with respect to age and gender. In the group AF-night, heart failure was observed more frequently (32% vs. 0%, p<0.001), also poor sleep quality (100% vs. 70%, p<0.001), and high risk of obstructive sleep apnea (47% vs. 25%, p<0.001). Correlation was observed between the onset of AF at night and the deterioration of sleep quality (r=0.299, p=0.003), poor sleep quality (r=0.345, p<0.001), severity of insomnia (r =0.306, p =0.002) and high risk of obstructive sleep apnea (r=0.376, p<0.001). In the AF-day group, hypertension was observed more frequently (73% vs. 28%, p=0.005).
Conclusions:
Sleep quality is significantly worse in patients with the onset of AF at night. The clinical significance of this relationship requires further studies.
Atrial fibrillation (atrial fibrillation – AF) is the most common supraventricular arrhythmia, which occurs in about 1% of adults. The aim of the study was to assess the relationship between sleep disorders and incidence of paroxysmal AF.
Material and Methods:
The study covered 51 patients with the onset of AF during the night hours (AF-night, mean age 60.8 ± 9.5), and 51 patients in whom the beginning of AF occurred exclusively during the daytime (AF-day, mean age 61.1 ± 11.2). All patients were hospitalized due to the occurrence of a subsequent episode of paroxysmal AF. Clinical data, biochemical parameters, and the results of questionnaires assessing sleep disturbances were taken into consideration.
Results:
The groups examined did not differ with respect to age and gender. In the group AF-night, heart failure was observed more frequently (32% vs. 0%, p<0.001), also poor sleep quality (100% vs. 70%, p<0.001), and high risk of obstructive sleep apnea (47% vs. 25%, p<0.001). Correlation was observed between the onset of AF at night and the deterioration of sleep quality (r=0.299, p=0.003), poor sleep quality (r=0.345, p<0.001), severity of insomnia (r =0.306, p =0.002) and high risk of obstructive sleep apnea (r=0.376, p<0.001). In the AF-day group, hypertension was observed more frequently (73% vs. 28%, p=0.005).
Conclusions:
Sleep quality is significantly worse in patients with the onset of AF at night. The clinical significance of this relationship requires further studies.
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