|Baltic Dental and Maxillofacial Journal|
December, 2011, Vol. 13, No. 4
CLINICAL CASE REPORTS
© 2011 Stomatologija
Stomatologija 2011; 13 (4): 123-7 151 KB
Upper airway sagittal dimensions in obstructive sleep apnea (OSA) patients and severity of the disease
Juris Svaza, Andrejs Skagers, Dace Cakarne, Iveta Jankovska
Objectives. To estimate the soft tissue determined individual features of the upper airway sagittal size which may predispose the patient to snoring and OSA and to find whether there is any relationship between the patient’s body-mass index (BMI) and the severity of OSA.
Material and methods. 58 consecutive patients with a mean age of 33.4 years were surgically treated for snoring and OSA. Before the operation they were subject to the following: physical examination, a sleep study to determine the severity of sleep disturbed breathing (SDB); the body mass index (BMI) was calculated, lateral cephalometry (LC) was recorded.
Results. Snoring was found in 25 patients, OSA I (mild) – 15, OSA II (moderate) – 9, OSA III (severe) – in 9 patients. Among patients with obesity, the most widespread types of sleep disorders were OSA II and OSA III. (p=0.029). There were differences in the mean values of the BMI between the group of snorers and the group with OSA II (p=0.007), between snorers and OSA III (p=0.006). Differences in upper airway cephalometric mean values between groups were found, the thickness of the uvula (SPT) between snorers and OSA III (p=0.001), between the OSA I and OSA III groups (p=0.032), and between the OSA II and OSA III groups (p=0.075).
Conclusion. Our study found narrowing in the anterior-posterior dimension of the airway at all levels, correlating with the severity of OSA as well as the BMI. The narrowest place was found in the oropharynx with an extension to the hypopharynx.
Key words: obstructive sleep apnea, lateral cephalometry.
Received: 24 03 2011
Accepted for publishing: 22 12 2011
1Sleep Laboratory, Institute of Stomatology, Riga Stradins University, Latvia
2Department of Oral and Maxillofacial surgery, Institute of Stomatology, Riga Stradins University, Latvia
3Department of Orthodontics, Institute of Stomatology, Riga Stradins University, Latvia
Juris Svaza1 – MD, Head of Sleep Laboratory
Andrejs Skagers2 – MD, Professor and Head of Department of Institute of Stomatology
Dace Cakarne3 – D.D.S.
Iveta Jankovska3 – D.D.S., PhD
Address correspondence to Dr. Juris Svaza, Institute of Stomatology, Riga Stradins university, 20 Dzirciema str., Riga LV-1007, Latvia.
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