Facial Axis Angle as a Risk Factor for Obstructive Sleep Apnea

Kubota, Y.; Nakayama, Hideaki; Takada, Toshinori; Matsuyama, Naho; Sakai, Kunihiko; Yoshizawa, Hirohisa; Nakamata, Masami; Satoh, Makoto; Akazawa, Kohei; Suzuki, Eiichi; Gejyo, Fumitake

doi:10.2169/internalmedicine.44.805

Cited by 41 publications

(27 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…23 Furthermore, the dolico facial pattern and obesity seen in Japanese men were the most important risk factors for OSA patients. 8 The difference between our results and the above cited results is seen in two aspects. First, both reports used a cephalometric Rickett's type of analysis.…”

Section: Discussioncontrasting

confidence: 92%

“…These findings support the view that obesity is one significant risk factor for Malay OSA patients that is in good agreement with findings obtained in the Chinese 5 and Japanese populations. 8 Clinical examination findings indicate that convex profiles, Class II malocclusion, and V shape palatal arch were the most frequent features among Malay OSA patients. It has been found that Japanese adults and children with OSA possess dolico facial patterns (long facial type) with retruded mandibles on Rickett's analysis.…”

Section: Discussionmentioning

confidence: 93%

See 1 more Smart Citation

Facial Profile Shape, Malocclusion and Palatal Morphology in Malay Obstructive Sleep Apnea Patients

Banabilh

Samsudin

Suzina

et al. 2010

The Angle Orthodontist

View full text Add to dashboard Cite

Objective: To test the null hypothesis that there is no difference in facial profile shape, malocclusion class, or palatal morphology in Malay adults with and without obstructive sleep apnea (OSA). Materials and Methods: Subjects were 120 adult Malays aged 18 to 65 years (mean Ϯ standard deviation [SD], 33.2 Ϯ 13.31) divided into two groups of 60. Both groups underwent clinical examination and limited channel polysomnography (PSG). The mean OSA and control values were subjected to t-test and the chi square test. Results: Physical examination showed that 61.7% of the OSA patients were obese, and 41.7% of those obese patients had severe OSA. The mean body mass index (BMI) was significantly greater for the OSA group (33.2 kg/m 2 Ϯ 6.5) than for the control group (22.7 kg/m 2 Ϯ 3.5; P Ͻ .001). The mean neck size and systolic blood pressure were greater for the OSA group (43.6 cm Ϯ 6.02; 129.1 mm Hg Ϯ 17.55) than for the control group (35.6 cm Ϯ 3.52; 114.1 mm Hg Ϯ 13.67; P Ͻ .001). Clinical examination showed that the most frequent findings among OSA groups when compared with the control group were convex profiles (71.7%), Class II malocclusion (51.7%), and V palatal shape (53.3%), respectively; the chi square test revealed a significant difference in terms of facial profile and malocclusion class (P Ͻ .05), but no significant difference in palatal shape was found. Conclusion:The null hypothesis is rejected. A convex facial profile and Class II malocclusion were significantly more common in the OSA group. The V palatal shape was a frequent finding in the OSA group. (Angle Orthod. 2010;80:37-42.)

show abstract

Section: Discussioncontrasting

confidence: 92%

Section: Discussionmentioning

confidence: 93%

Facial Profile Shape, Malocclusion and Palatal Morphology in Malay Obstructive Sleep Apnea Patients

Banabilh

Samsudin

Suzina

et al. 2010

The Angle Orthodontist

View full text Add to dashboard Cite

show abstract

“…Consistent with their findings, the mean neck circunference in patients with AHI bellow 5 was 35.4 cm and in patients with AHI over 5, the mean values were over 40 cm. All values of vertical facial measurements in this study were higher in the group with AHI over 5, indicating that a long face may contribute to the narrowing of the upper airways space 7,11,12,24,30 . Our predictive model for AHI over 5 indicated that the larger the measures of Tr-Gla, Sn-Me and N.C., the greater would be the likelihood of having OSA.…”

Section: Discussionmentioning

confidence: 51%

Assessment Of The Craniofacial And Cervical Parameters Using Standardized Photography In Individuals With Obstructive Sleep Apnea

Chaves¹,

Teles²,

Bruin³

et al. 2015

Int Arch Med

View full text Add to dashboard Cite

Objectives: The purpose of this study was to use standardized digital facial photography to investigate craniofacial and cervical characteristics of individuals with obstructive sleep apnea (OSA) and the possible associations between these characteristics and polysomnographic data. Material and methods:The final sample included 50 individuals with OSA (Apnea Hypopnea Index -AHI > 5) and 10 controls (AHI < 5). All subjects underwent a history and physical examination with measurements of anthropometric parameters and overnight polysomnographic records. Anthropometric assessment and standardized frontal-profile facial photographs were performed prior to polysomnography. Results:Higher AHI was associated with alterations in the cervical area, where the neck circumferences were significantly increased. We observed an interaction between the craniofacial and anthropometric variables with the polysomnographic variable. Specifically, when there was increased superior facial third (P=0.032), inferior facial third (P=0.039) and cervical circumference (P=0.050), there was a greater chance of having AHI over 5. Conclusions:Using craniofacial measurements in standardized photographs and anthropometric measurements, the vertical facial pattern and the neck circumference are the strongest predictors of OSA.

show abstract

“…We also showed that the "underweight" group had higher AHI and a higher proportion of moderateto-serious OSAHS (AHI≥15) patients of both sexes than the normal weight groups. This finding may be unique to Asian OSAHS patients, as nonobese Asian patients have been reported to exhibit relative narrowing of the upper airway due to craniofacial bony structure and the soft tissue of the naso-and oro-pharynx, which may be associated with the development of OSAHS [18,19].…”

Section: Discussionmentioning

confidence: 88%

Demographic characteristics of 3,659 Japanese patients with obstructive sleep apnea–hypopnea syndrome diagnosed by full polysomnography: associations with apnea–hypopnea index

et al. 2007

Self Cite

View full text Add to dashboard Cite

Information on obstructive sleep apnea-hypopnea syndrome (OSAHS) in Japan has been limited. The purposes of this clinical study were to evaluate the demographic characteristics of Japanese OSAHS patients and to assess how demographic factors are associated with OSAHS severity. We analyzed 3,659 OSAHS patients who underwent polysomnographic evaluation between January 2000 and December 2004 at 11 hospitals in Niigata Prefecture, Japan. Data consisted of apnea-hypopnea index (AHI) and demographic characteristics, including sex, age, and body-mass index, for statistical analysis. Levels of obesity were classified according to the WHO criteria. The male-to-female patient ratio for OSAHS was 4.6, and male patients presented more severe OSAHS than female patients. High AHI and a high proportion of moderate to serious OSAHS (AHI > or = 15) were found among the patients in their 30s, as well as female patients in their 70s and male patients in their 80s. The AHI and the proportion of moderate-to-serious OSAHS (AHI > or = 15) were greater in patients classified as underweight than in normal weight patients. In conclusion, there is a higher male predominance in the prevalence of OSAHS, and in both sexes, the results suggest different pathophysiological mechanisms of deteriorating OSAHS between adults under age 55 and adults 55 years or over. In addition, underweight patients exhibit more severe OSAHS than normal weight patients.

show abstract

Facial Axis Angle as a Risk Factor for Obstructive Sleep Apnea

Cited by 41 publications

References 24 publications

Facial Profile Shape, Malocclusion and Palatal Morphology in Malay Obstructive Sleep Apnea Patients

Facial Profile Shape, Malocclusion and Palatal Morphology in Malay Obstructive Sleep Apnea Patients

Assessment Of The Craniofacial And Cervical Parameters Using Standardized Photography In Individuals With Obstructive Sleep Apnea

Demographic characteristics of 3,659 Japanese patients with obstructive sleep apnea–hypopnea syndrome diagnosed by full polysomnography: associations with apnea–hypopnea index

Contact Info

Product

Resources

About