OBJECTIVE: Obstructive sleep apnea (OSA) is one of the most common causes of secondary arterial hypertension. It is important to rule out OSA as a cause of resistant hypertension. The ApneaLink device is a simple and cost-efficient outpatient examination, but its usefulness in screening OSA in resistant hypertension has not yet been evaluated. METHODS: A total of 69 patients with resistant arterial hypertension were enrolled. Patients underwent a physical examination, including the use of ApneaLink, followed by respiratory polygraphy. The presence of OSA was assessed by the apnea-hypopnea index (AHI), oxygen desaturation index (ODI), mean nocturnal desaturation (SpO2), and percentage of sleep time with SpO2 less than 90%. RESULTS: There was no significant difference between the values of AHI found during the use of ApneaLink and respiratory polygraphy (mean 30.4 ± 21.7 vs. 37.2 ± 20.9, P = 0.07). ApneaLink had 77.3% sensitivity and 100% specificity to diagnose OSA with the area under the ROC curve 0.866 (P < 0.001). We also found no significant difference in mean SpO2 (91.3 ± 2.5 vs. 90.9 ± 3.3%, P = 0.22). The ODI evaluated via ApneaLink was significantly lower than by the polygraphy (31.1 ± 18.3 vs. 43.9 ± 24.8, P < 0.001), while the measured percentage of sleep time with SpO2 less than 90% was higher (31.8 ± 23.7 vs. 23.3 ± 24.4, P = 0.001). The severity of OSA was correctly determined by ApneaLink in 50.7% of patients, underestimated in 23.2% and overestimated in 26.1%. CONCLUSIONS: The use of ApneaLink is a suitable method for screening the presence of OSA in patients with resistant hypertension, but to accurately assess the severity of OSA, respiratory polygraphy or polysomnography is required.

• Klíčová slova
• ApneaLink, Obstructive sleep apnea, Portable monitors, Resistant hypertension, Screening,
• MeSH
• ambulantní monitorování * MeSH
• hypertenze komplikace   MeSH
• lidé středního věku MeSH
• lidé MeSH
• obstrukční spánková apnoe komplikace   diagnóza   MeSH
• Check Tag
• lidé středního věku MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky MeSH