2015, Number 4
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Rev Invest Clin 2015; 67 (4)
Diagnostic Value of the Morphometric Model and Adjusted Neck Circumference in Adults with Obstructive Sleep Apnea Syndrome
Castorena-Maldonado A, Espinosa-Morett L, Arredondo del Bosque F, Carrillo-Alduenda JL, Torre-Bouscoulet L, Vázquez-García JC, Pérez-Padilla JR
Language: English
References: 27
Page: 258-265
PDF size: 579.27 Kb.
ABSTRACT
Background: Obstructive sleep apnea syndrome is a major public health problem. The morphometric model and the Sleep
Apnea Clinical Score are widely used to evaluate adults; however, neither of these tools has been validated in a Mexican population.
Objective: To determine the diagnostic value of the morphometric model and the Sleep Apnea Clinical Score and compare
them with conventional clinical instruments.
Methods: A total of 97 individuals were recruited prospectively. Initial screening
excluded 36, of whom nine were subjects without apnea; the remaining 52 were consecutive patients with obstructive sleep
apnea syndrome diagnosed by nocturnal polysomnography. Diagnostic values of each test were calculated.
Results: Obstructive
sleep apnea syndrome patients had significantly higher scores with both instruments than controls: morphometric model: 61.3
(95% CI: 45.5-75.3) vs. 41.0 (95% CI: 35.6-45.6); Sleep Apnea Clinical Score: 45.3 (95% CI: 39.5-40.3) vs. 36 (95% CI: 34.0-36.5),
respectively. For severe cases, the best cutoff point for morphometric model was 46, with a sensitivity of 81% (95% CI: 62.5-92.6)
and specificity of 46.7% (95% CI: 66.4-100), while for Sleep Apnea Clinical Score it was › 48, with a sensitivity of 61% (95%
CI: 46.1-74.2) and specificity of 80.4% (95% CI: 66-90.6).
Conclusions: A morphometric model value of ≥ 46 or an adjusted
neck circumference (Sleep Apnea Clinical Score) › 48 were adequate for diagnosing obstructive sleep apnea syndrome.
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