scholarly journals Collar Size as Predictor of Obstructive Sleep Apnea

2008 ◽  
Vol 23 (2) ◽  
pp. 14-16
Author(s):  
Lyra V. Veloro ◽  
Michael Alexius A. Sarte ◽  
Samantha S. Castañeda
Keyword(s):  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Body Mass ◽  
Neck Circumference ◽  
Normal Group ◽  
Physical Measurements ◽  
Obstructive Sleep ◽  
Male Patients ◽  
The Mean

Objective: This study focuses on evaluating the relationship between physical findings, particularly collar size and Body Mass Index (BMI), and polysomnographic parameters in male patients seen at a Sleep Disorders Laboratory, suspected to have Obstructive Sleep Apnea (OSA).    Methods: Design: Cross-sectional study Setting: Academic tertiary private hospital Participants:  Charts of 149 adult male patients referred for polysomnography between July 1, 2005 and June 30, 2006 were reviewed.  Height, weight, and external neck circumference measurements were obtained.  The data from polysomnography results were noted and correlated with the physical measurements.    Results: The mean collar size for the OSA group was 42.03 cm with a mean BMI of 29.14 while the mean collar size for the normal group was 39.05 cm with a mean BMI of 25.36.  A significant difference was noted in both the collar size and body mass index (BMI) between the OSA group and the normal group (p<0.005).  Results showed a significant correlation between collar size and BMI.  Collar size and BMI measurements were also correlated with increasing severity of sleep apnea in the OSA group.  The ³40 cm collar size among male adults with symptoms of OSA was 80% sensitive and 67% specific with a positive predictive value of 94% in predicting true OSA.   Conclusion: This study suggests that the external neck circumference and the degree of obesity determined through BMI measurement may be important predictors of sleep apnea in adult Filipino males suspected to have OSA.  Given the high probability of having true OSA in symptomatic male adults with a collar size ³ 40 cm, outright definitive management may be opted for in these patients, while those with a collar size < 40 cm may need to undergo further confirmatory tests.     Keywords: obstructive sleep apnea, external neck circumference, collar size, body mass index, polysomnography, obesity  

scholarly journals Polysomnographic and clinical characteristics of positional obstructive sleep apnea patients

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Seda Beyhan Sagmen ◽  
Sevda Cömert
Keyword(s):  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Body Mass ◽  
Severe Disease ◽  
Upper Airway ◽  
Neck Circumference ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
The Mean

Abstract Background Obstructive sleep apnea is a condition characterized by the complete or partial obstruction of the upper airway during sleep. This study aimed to compare the clinical and polysomnographic characteristics of our obstructive sleep apnea patients according to their positional and non-positional features. Results Two hundred eighty patients were included in the study. One hundred two patients (36.43%) were female, while 178 patients (63.57%) were male. While 88 (31.43%) of these patients were defined as positional patients, 192 (68.57%) were defined as non-positional patients. The mean age of the positional patients (46.78 ± 9.66) was lower than the mean age of the non-positional patients (50.90 ± 10.96) (p 0.001). Similarly, the mean body mass index of the positional patients (29.39 ± 3.80) was lower than the mean body mass index of the non-positional patients (33.30 ± 6.45) (p < 0.001). Neck circumference values of the positional patients (40.36 ± 2.65) were lower compared to the non-positional patients (43.32 ± 2.54) (p < 0.001). Sleep values were compared based on the presence of positional sleep apnea. In the positional patients, sleep duration, sleep efficiency (percentage), duration of stage N3, minimum, and mean saturation values were found to be higher compared to the non-positional patients, while nightlong apnea hypopnea index, apnea index, percentage of sleep time with oxygen saturation below 90%, oxygen desaturation index, mean heart rate, and periodic limb movement index values were found to be lower (p < 0.05). The rate of severe sleep apnea (7.95%) in the positional patients was lower than the non-positional patients (53.65%) (p < 0.001). Conclusion In the light of these data, positional OSA is a very important condition presented in 31.43% of OSA patients and it was determined that these patients were younger, had less body mass index, and shorter neck circumference. The rate of severe disease was found to be lower in positional OSA patients

Body Mass Index (BMI) and Neck Circumference (NC) in Diagnosing Obstructive Sleep Apnea

2007 ◽  
Vol 2007 (1) ◽  
pp. 15
Author(s):  
A. Al Ansari ◽  
Hamad Al-Saey ◽  
Mansour Al-Sulaiti ◽  
S. Ganesan ◽  
H. Abdul Sattar ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Body Mass ◽  
Neck Circumference ◽  
Obstructive Sleep

Body Mass Index and Neck Circumference in Patients with Obstructive Sleep Apnea-Hypopnea Syndrome

2004 ◽  
Vol 1 (2) ◽  
pp. 37-41 ◽  
Author(s):  
Sun Jung Han ◽  
Eun Yeon Joo ◽  
Jee Hyun Kim ◽  
Min Sung Kim ◽  
Seung Bong Hong
Keyword(s):  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Body Mass ◽  
Neck Circumference ◽  
Obstructive Sleep ◽  
Hypopnea Syndrome

Long-term Effects of Gastric Bypass Surgery in Patients with Obstructive Sleep Apnea

2020 ◽  
Vol 16 (1) ◽  
pp. 34-38
Author(s):  
Nathir Obeidat ◽  
Saif Aldeen AlRyalat ◽  
Khaled Al Oweidat ◽  
Mahmoud Abu-Khalaf ◽  
Asma Btoush ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Gastric Bypass ◽  
Sleep Apnea ◽  
Body Mass ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
The Mean

Background: Obstructive sleep apnea is a common disorder involving, intermittent mechanical obstruction of the upper airway during sleep. Obesity is the most powerful risk factor for obstructive sleep apnea. Objective: This study aimed to investigate the long-term effect of Roux-en-Y gastric bypass bariatric surgery on patients with obstructive sleep apnea. Methods: This study included patients were referred for bariatric surgery (Roux-en-Y gastric bypass) to control symptoms and complications of obesity during a 5-year period. An overnight sleep study was performed for each patient before and after the bariatric surgery, to study its effect on different obstructive sleep apnea-related variables. Results: This study included 179 patients (mean age 35.9 ± 10.7 years). The mean duration from preoperative assessment to postoperative assessment was 2.4 ± 2.2 years. The mean change in body mass index and weight showed a decrease of 16.0 ± 16.0 kg/m2 and48.7 ± 25.9 kg, respectively. The apnea hypopnea index decreased by a mean of 22.6 ± 26.3 events/hour. Conclusion: We concluded that a decrease in the body mass index by 1 kg/m2 could predict a decrease in the apnea hypopnea index by 0.46 events/hour. Moreover, after mean follow-up duration of 2.4 years, 84.3% of mild and 83.3% of moderate obstructive sleep apnea patients became normal postoperatively.

Impact of Obstructive Sleep Apnea, Age, Body mass index and Neck circumference on timing of Acute Coronary Syndrome onset

2018 ◽  
Author(s):  
Muhammad Hanis Muhmad Hamidi ◽  
Muhammad Amin Ibrahim ◽  
Johan Rizwal Ismail ◽  
Mohd Arif Mohd Zim ◽  
Ahmad Izuanuddin Ismail
Keyword(s):  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Acute Coronary Syndrome ◽  
Sleep Apnea ◽  
Body Mass ◽  
Neck Circumference ◽  
Coronary Syndrome ◽  
Obstructive Sleep

scholarly journals Improving the performance of peripheral arterial tonometry-based testing for the diagnosis of obstructive sleep apnea

2020 ◽  
Vol 68 (8) ◽  
pp. 1370-1378 ◽  
Author(s):  
Octavian C Ioachimescu ◽  
Swapan A Dholakia ◽  
Saiprakash B Venkateshiah ◽  
Barry Fields ◽  
Arash Samarghandi ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Diagnostic Accuracy ◽  
Body Mass ◽  
Neck Circumference ◽  
Peripheral Arterial Tonometry ◽  
Arterial Tonometry ◽  
Obstructive Sleep ◽  
Peripheral Arterial

Outside sleep laboratory settings, peripheral arterial tonometry (PAT, eg, WatchPat) represents a validated modality for diagnosing obstructive sleep apnea (OSA). We have shown before that the accuracy of home sleep apnea testing by WatchPat 200 devices in diagnosing OSA is suboptimal (50%–70%). In order to improve its diagnostic performance, we built several models that predict the main functional parameter of polysomnography (PSG), Apnea Hypopnea Index (AHI). Participants were recruited in our Sleep Center and underwent concurrent in-laboratory PSG and PAT recordings. Statistical models were then developed to predict AHI by using robust functional parameters from PAT-based testing, in concert with available demographic and anthropometric data, and their performance was confirmed in a random validation subgroup of the cohort. Five hundred synchronous PSG and WatchPat sets were analyzed. Mean diagnostic accuracy of PAT was improved to 67%, 81% and 85% in mild, moderate-severe or no OSA, respectively, by several models that included participants’ age, gender, neck circumference, body mass index and the number of 4% desaturations/hour. WatchPat had an overall accuracy of 85.7% and a positive predictive value of 87.3% in diagnosing OSA (by predicted AHI above 5). In this large cohort of patients with high pretest probability of OSA, we built several models based on 4% oxygen desaturations, neck circumference, body mass index and several other variables. These simple models can be used at the point-of-care, in order to improve the diagnostic accuracy of the PAT-based testing, thus ameliorating the high rates of misclassification for OSA presence or disease severity.

Sign in / Sign up

Export Citation Format

Share Document