www.sbdmj.com - Stomatologija - Baltic Dental and Maxillofacial Journal

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

Summary

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.

E-mail address: j.svaza@latnet.lv



	Baltic Dental and Maxillofacial Journal

December, 2011, Vol. 13, No. 4 CONTENTS REVIEWS Dental management of patients before and after renal transplantation Eleni A. Georgakopoulou, Marina D. Achtari, Niki Afentoulide 107-112 Factors influencing face aging. Literature review Kestutis Sveikata, Irena Balciuniene, Janina Tutkuviene 113-116 SCIENTIFIC ARTICLES Specific signaling molecule expression in periodontal ligaments in different age groups: Pilot study Maris Grzibovskis, Ilga Urtane, Mara Pilmane 117-122 Upper airway sagittal dimensions in obstructive sleep apnea (OSA) patients and severity of the disease Juris Svaza, Andrejs Skagers, Dace Cakarne, Iveta Jankovska 123-127 CLINICAL CASE REPORTS Endoscopically assisted enucleation of a large mandibular periapical cyst Heleia Nestal Zibo, Ene Miller 128-131 Squamous cell carcinoma of the left temporal region Albinas Gervickas, Raimundas Golubevas, Alvydas Gleiznys 132-134 © 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 Summary 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. E-mail address: j.svaza@latnet.lv