Among patients with untreated mild OSA, 82.9% exhibited a dipper phenotype, while 17.1% were identified as risers, nearly double the general population prevalence.
Patients with untreated mild OSA have a significantly higher prevalence of the high-risk riser blood pressure phenotype compared to the general population, highlighting the importance of 24-hour ABPM for cardiovascular risk stratification in this group.
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Obstructive sleep apnea (OSA) is associated with alterations in blood pressure (BP) regulation, influencing hypertension (HTN) control and increasing cardiovascular risk, with three nocturnal BP patterns described: a 10–20% decrease (“dipper”), a 0–10% decrease (“non-dipper”), or an increase during sleep (“riser”). This analytical cross-sectional observational study aimed to identify the distribution of dipper, non-dipper, and riser phenotypes in patients with untreated mild OSA evaluated at UMAA No. 68, Chihuahua. Patients with a diagnosis of mild OSA who were not receiving CPAP therapy were included, and data from 2021–2023 were obtained from the pulmonology service. Twenty-four–hour ambulatory blood pressure monitoring (ABPM) was performed, and SPSS v26 was used for statistical analysis. A total of 70 patients were analyzed (mean age 54.46 ± 15.9 years; 55.7% women), with hypertension documented in 31.4% of participants; overall, 82.9% exhibited a dipper phenotype and 17.1% a riser phenotype. The dipper phenotype predominated among patients with untreated mild OSA, while the riser phenotype was present in 17.1% of cases-approximately twice the prevalence reported in the general population-suggesting that nocturnal BP phenotype should be considered a relevant clinical feature in this population.
Bustillos et al. (Wed,) reported a other. Among patients with untreated mild OSA, 82.9% exhibited a dipper phenotype, while 17.1% were identified as risers, nearly double the general population prevalence.