scholarly journals Clinical and Polysomnographic Characteristics of Patients with Extreme Obstructive Sleep Apnea, AHI > 100: A Case-Control Study

2021 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Forogh Soltaninejad ◽  
Negarsadat Neshat ◽  
Mehrzad Salmasi ◽  
Babak Amra
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
Study Results ◽  
Significant Difference ◽  
Severe Manifestation ◽  
The Mean ◽  
Nocturnal Polysomnography ◽  
Control Study

Background: Severe obstructive sleep apnea (OSA), defined by apnea-hypopnea index (AHI) as more than 30 events per hour, was previously related to more comorbidity. However, limited studies separated the patients with AHI > 100 from those with a less severe manifestation of the disease. Objectives: The current study aimed at describing the characteristics of this subgroup and comparing them with less severe conditions. Methods: A retrospective analysis was conducted on 114 patients with OSA. Nocturnal polysomnography was used to diagnose severe OSA. Patients were categorized into two groups: (1) 60 < AHI < 100 (very severe OSA), (2) AHI ≥ 100 (extreme OSA). Demographic, medical history, and polysomnographic variables were evaluated and compared between the two groups. Results: Extreme OSA was diagnosed in 19 patients, the mean body mass index (BMI) was significantly higher in this group (39.26 ± 5.93 vs. 35.68 ± 6.45 kg/m2, P = 0.025). They also had lower minimal O2 saturation (65.68 ± 10.16 vs. 74.10 ± 8.74, P = 0.003) and more time with < 90% O2 saturation (T < 90%) (81.78 ± 22.57 vs. 58.87 ± 33.14, P = 0.01). OHS prevalence was significantly higher in the group with extreme OSA (P = 0.04). The most frequent comorbidity was hypertension, with an incidence of 60.5%, for the extreme group, although there was no significant difference between the two groups in terms of clinical associations. Conclusions: The current study results suggested that greater BMI and lower minimal O2 saturation, as well as increased T < 90%, were associated with extreme OSA, although no differences were observed in the associated diseases between the compared groups.

Relevance of obstructive sleep apnea and smoking: Obstructive sleep apnea and smoking

2020 ◽  
Author(s):  
Ayse Didem Esen ◽  
Meltem Akpinar
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Rem Sleep ◽  
Demographic Data ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
Study Results ◽  
Significant Difference ◽  
Study Population ◽  
The Impact

Abstract Background The data concerning the association of smoking and obstructive sleep apnea (OSA) are limited. The effects of cigarette smoking on OSA still remain obscure. Objectives To reveal the impact of smoking on obstructive sleep apnea. Methods About 384 patients with the diagnosis of OSA through full night polysomnographic (PSG) examination were included to the study. The demographic data (age, sex and BMI), complaints and medical history, status of smoking as non-smokers and smokers, smoking frequency (cigarettes/day), polysomnograhic data comprising apnea hypopnea index (AHI), non-REM sleep AHI (NREM AHI), REM sleep AHI (REM AHI), minimum oxygen saturation (min SaO2) were recorded for all the subjects. Non-smokers and smokers were compared in terms of severity of OSA. Results The study population consisted of 384 subjects, 253 males and 131 females. Smoking frequency was not found correlated with OSA severity. Among smokers, males had higher severe OSA rate (P = 0.002, P &lt; 0.05). In subjects with BMI &lt; 30, severe OSA rate was higher in smokers (34.44% versus 21%) (P = 0.027, P &lt; 0.05). Conclusions Our study detected higher rate of severe OSA in male smokers and smokers with BMI &lt; 30. PSG data did not yield statistically significant difference in non-smokers and smokers. OSA severity was not found correlated with smoking frequency. Along with the study results, the impact of smoking on OSA is still controversial. Prospective studies with larger sample size may be contributive to further evaluation of the association of OSA with smoking.

Modified Genioglossus Advancement and Uvulopalatopharyngoplasty in Patients with Obstructive Sleep Apnea

2011 ◽  
Vol 145 (5) ◽  
pp. 865-871 ◽  
Author(s):  
Tarek Abdelzaher Emara ◽  
Tharwat Abdelzaher Omara ◽  
Waheed Mohamed Shouman
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Success Rate ◽  
Apnea Hypopnea Index ◽  
Genioglossus Muscle ◽  
Mandible Fracture ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
Nocturnal Polysomnography ◽  
Postoperative Findings

Objective. To describe modification of the originally described genioglossus muscle advancement and its clinical assessment in the treatment of patients with obstructive sleep apnea. Study Design. Prospective study. Setting. University medical hospital. Subjects and Methods. Twenty-three patients with obstructive sleep apnea underwent modified genioglossus muscle advancement with uvulopalatopharyngoplasty. All patients were evaluated before and 6 months after surgery by history taking, clinical examination, Epworth Sleepiness Scale evaluation, fiber-optic nasopharyngoscopy, cephalometry, panoramic X-ray, and nocturnal polysomnography. Results. Postoperative mean ± SD apnea-hypopnea index (AHI) decreased from 40.7 ± 17.4 to 15.4 ± 10.7 ( P = .00; 95% confidence interval [CI], 18.4 to 32.27). With a success rate defined as AHI <20 and a 50% decrease in AHI of the preoperative value, the surgical success rate was 86.9%. Cephalometry analysis showed a significant difference between preoperative and postoperative findings, including a posterior airway space that increased a mean ± SD from 8.1 ± 2.5 to 12.3 ± 3.7 mm ( P = .00; 95% CI, −5.89 to −3.0), position of the mandible to the cranial base (SNB degree) that increased from 77.3 ± 2.7 to 78.5 ± 1.3 ( P = .005; 95% CI, −2.11 to −0.4), and improved palatal parameters. The mean (SD) average depth of the osteotomy and genioglossus advancement was 11.8 ± 2.6 mm. None of the 23 patients had mandible fracture, aesthetic changes of the chin, or detachment of the advanced genioglossus muscle. Conclusion. The modification described in this technique permits complete and safe capture and advancement of the whole genioglossus muscle, leading to satisfactory expansion of the retrolingual airway without stripping, detachment of the advanced genioglossus muscle, mandible fracture, or aesthetic changes of the chin.

Aerodynamics Analysis of the Impact of Nasal Surgery on Patients with Obstructive Sleep Apnea and Nasal Obstruction

ORL ◽  
2021 ◽  
pp. 1-8
Author(s):  
Lifeng Li ◽  
Demin Han ◽  
Hongrui Zang ◽  
Nyall R. London
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Nasal Obstruction ◽  
Upper Airway ◽  
Apnea Hypopnea Index ◽  
Nasal Surgery ◽  
Subjective Sleep Quality ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
The Impact

<b><i>Objective:</i></b> The purpose of this study was to evaluate the effects of nasal surgery on airflow characteristics in patients with obstructive sleep apnea (OSA) by comparing the alterations of airflow characteristics within the nasal and palatopharyngeal cavities. <b><i>Methods:</i></b> Thirty patients with OSA and nasal obstruction who underwent nasal surgery were enrolled. A pre- and postoperative 3-dimensional model was constructed, and alterations of airflow characteristics were assessed using the method of computational fluid dynamics. The other subjective and objective clinical indices were also assessed. <b><i>Results:</i></b> By comparison with the preoperative value, all postoperative subjective symptoms statistically improved (<i>p</i> &#x3c; 0.05), while the Apnea-Hypopnea Index (AHI) changed little (<i>p</i> = 0.492); the postoperative airflow velocity and pressure in both nasal and palatopharyngeal cavities, nasal and palatopharyngeal pressure differences, and total upper airway resistance statistically decreased (all <i>p</i> &#x3c; 0.01). A significant difference was derived for correlation between the alteration of simulation metrics with subjective improvements (<i>p</i> &#x3c; 0.05), except with the AHI (<i>p</i> &#x3e; 0.05). <b><i>Conclusion:</i></b> Nasal surgery can decrease the total resistance of the upper airway and increase the nasal airflow volume and subjective sleep quality in patients with OSA and nasal obstruction. The altered airflow characteristics might contribute to the postoperative reduction of pharyngeal collapse in a subset of OSA patients.

S296 – Thyroidectomy for Goiter Improves Obstructive Sleep Apnea

2008 ◽  
Vol 139 (2_suppl) ◽  
pp. P173-P174
Author(s):  
Mark T Agrama
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Total Thyroidectomy ◽  
Community Hospital ◽  
Apnea Hypopnea Index ◽  
Tracheal Compression ◽  
Obstructive Sleep ◽  
The Mean ◽  
Postoperative Improvement ◽  
Symptomatic Control

Objectives Evaluate the effects of total thyroidectomy for euthyroid goiter causing tracheal compression on the apnea hypopnea index (AHI) in patients with obstructive sleep apnea (OSA). Demonstrate a relationship between tracheal compression and OSA. Methods A retrospective study of 8 patients with euthyroid goiter causing tracheal compression who had moderate or severe OSA. Between January 2004 and December 2007, 8 patients with these conditions were treated in a community hospital by the author. At least 1 compressive symptom (dysphagia, dyspnea, and/or orthopnea) was reported by all patients. Computed tomography of the neck and chest was used to confirm the extent of goiter and tracheal compression. OSA was confirmed with preoperative polysomnography. Total thyroidectomy was performed. Postoperative polysomnography was obtained after 90 days. Outcome measures were changes in compressive symptoms and AHI using paired t test. Results All 8 patients reported symptomatic control of compressive symptoms after thyroidectomy. 7 of 8 patients demonstrated postoperative improvement of AHI. The mean postoperative AHI decreased significantly from 52.1 to 36.6 (P < 0.05). Conclusions Total thyroidectomy for goiter causing tracheal compression can significantly improve symptoms and AHI in those patients who have OSA. Evaluation of patients with OSA should include screening for tracheal compression from goiter.

scholarly journals Validation of the Spanish Version of the STOP-Bang Questionnaire: Usefulness as a Screening Tool for Obstructive Sleep Apnea in Adults

2020 ◽  
pp. 014556132093233
Author(s):  
Beatriz Delgado-Vargas ◽  
Leticia Acle-Cervera ◽  
Gianmarco Narciso López
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Screening Tool ◽  
Sleep Apnea Syndrome ◽  
Spanish Version ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
Good Internal Consistency ◽  
The Mean ◽  
Apnea Syndrome

Objectives: Obstructive sleep apnea syndrome (OSAS) is an increasing health problem, the diagnosis of which is generally delayed due to long waiting lists for the tests used to identify it. Therefore, tools that help on classifying patients at higher risk of suffering this syndrome have been developed. Methods: One hundred ninety-three consecutive patients, with and without OSAS, filled in the Spanish version of the STOP-Bang questionnaire in Hospital Universitario de Torrejón (Spain). Polysomnographies were performed to diagnose the presence and severity of the OSAS. Statistics analysis of the demographic characteristics of the sample and the questionnaire results was performed. Results: Most patients were male (73%) and the mean age was 50.4 years (ranging from 19-77 years). Cronbach α coefficient in the sample was 0.8072. A statistically significant difference was noted in the questionnaire scores between patients with OSAS and those without the syndrome. Conclusions: The Spanish version of the STOP-Bang questionnaire possess a good internal consistency that allows us to rely on it as a screening tool for patients with OSAS. In our sample, a difference in the questionnaire score was appreciated between patients with and without the syndrome, which strongly supports the utility of the questionnaire for its purpose.

scholarly journals Gender differences in the influence of obstructive sleep apnea on optic nerve head circulation

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Tomoaki Shiba ◽  
Mao Takahashi ◽  
Tadashi Matsumoto ◽  
Yuichi Hori
Keyword(s):  
Gender Differences ◽  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Optic Nerve ◽  
Optic Nerve Head ◽  
Laser Speckle ◽  
Laser Speckle Flowgraphy ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
The Mean

AbstractWe investigated gender differences in the optic nerve head (ONH) microcirculation status in association with obstructive sleep apnea (OSA) by using laser speckle flowgraphy (LSFG). We evaluated 150 men (60.5 ± 11.0 yrs) and 45 women (63.0 ± 10.6 yrs) who underwent overnight polysomnography. The mean blur rate (MBR), maximum (Max) MBR, and minimum (Min) MBR were evaluated. The parameters were analyzed separately for the tissues, vessels, and throughout the ONH (All). The apnea hypopnea index (AHI: times/hr), the lowest SpO2%, and the mean SpO2% were calculated as indicators of OSA. We investigated which MBR sections are correlated with OSA parameters separately in the men and women. All MBR sections in the women were significantly positively correlated with the lowest SpO2. In the men, no MBR section was correlated with any OSA parameters. The factors contributing independently to MBR-Tissue were height (β = 0.31) and lowest SpO2 (β = 0.30). The lowest SpO2 in the women was significantly positively correlated with Max MBR-Tissue, Max MBR-All, and Min MBR-All. Our results confirmed a gender difference in characteristics of ONH microcirculation in association with OSA.

scholarly journals 0567 Hypoxic Burden and Apnea-Hypopnea Duration in Patients with Positional Obstructive Sleep Apnea

SLEEP ◽  
2020 ◽  
Vol 43 (Supplement_1) ◽  
pp. A217-A218
Author(s):  
J A Ramzy ◽  
R Rengan ◽  
M Mandal ◽  
S Rani ◽  
M E Vega Sanchez ◽  
...  
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Total Sleep Time ◽  
Sleep Time ◽  
Apnea Hypopnea Index ◽  
Apnea Test ◽  
Positional Obstructive Sleep Apnea ◽  
Obstructive Sleep ◽  
Respiratory Event ◽  
The Mean

Abstract Introduction Recently, the measurement of the hypoxic burden and apnea-hypopnea duration has been shown to correlate with mortality in patients with obstructive sleep apnea (OSA). We hypothesized that in patients with mild positional OSA (apnea-hypopnea index [AHI] &lt; 5 events/hr in the non-supine position) the hypoxic burden would be increased and apnea-hypopnea duration shortened and similar to patients with non-positional OSA. Methods Fourteen patients with positional OSA and 24 patients non-positional OSA with similar severity of OSA based on the respiratory event index (REI) were included. All patients had a home sleep apnea test for suspected OSA. The hypoxic burden was calculated by the multiplication of REI and the mean area under the desaturation curves. Results Thirty-eight patients [12 (35%) males, 50±12 yrs, BMI 35±7 kg/m2, Epworth Sleepiness Scale (ESS) 11±8, REI 10±3 events/hr, apnea-hypopnea duration 19±4 sec, mean SaO2 94±2%, lowest SaO2 79±8%, % total sleep time (TST) SaO2 &lt; 90% 11±16%, hypoxic burden 30±17 %min/hr] completed the study. Fourteen patients [9 (64%) males, 46±14 yrs, BMI 31±6 kg/m2, ESS 7±5, REI 9±3 events/hr, mean SaO2 94±2%, lowest SaO2 81±6%, %TST SaO2 &lt; 90% 4±6%] had positional OSA (supine REI 16±7 events/hr, non-supine REI 3±1 events/hr) and 24 patients had non-positional OSA [3 (13%) males, 52±10 yrs, BMI 38±7 kg/m2, ESS 12±9, REI 10±3 events/hr, mean SaO2 94±2%, lowest SaO2 77±9%, %TST SaO2 &lt; 90% 14±19%]. The hypoxic burden was elevated in both the positional and non-positional OSA patients with no difference between the groups (26±19 %min/hr and 32±15 %min/hr, respectively, p=0.13). The apnea-hypopnea duration was similar in positional and non-positional OSA patients (20±3 sec and 18±4 sec, respectively, p=0.08 sec). Conclusion In patients with mild positional OSA the hypoxic burden, which has been associated with cardiovascular mortality, is elevated and similar to patients with non-positional OSA. Support None

Polysomnography Outcomes after Supraglottoplasty in Children with Obstructive Sleep Apnea

2019 ◽  
Vol 161 (4) ◽  
pp. 694-698 ◽  
Author(s):  
Bharat Bhushan ◽  
James W. Schroeder ◽  
Kathleen R. Billings ◽  
Nicholas Giancola ◽  
Dana M. Thompson
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Tertiary Care ◽  
Case Series ◽  
Apnea Hypopnea Index ◽  
Historical Cohort ◽  
Tertiary Care Medical Center ◽  
Obstructive Sleep ◽  
The Mean ◽  
The Impact

ObjectiveLaryngomalacia has been reported to contribute to the severity of obstructive sleep apnea (OSA) in children. It is unclear if surgical treatment of laryngomalacia improves polysomnography (PSG) outcomes in these patients. The objective of this study is to report the impact of supraglottoplasty on PSG parameters in children with laryngomalacia-related OSA.Study DesignRetrospective case series.SettingTertiary care medical center.Subjects and MethodsHistorical cohort study of consecutive children with laryngomalacia who underwent supraglottoplasty and who had undergone overnight PSG before and after surgery.ResultsForty-one patients were included in the final analysis: 22 (53.6%) were male, and 19 (46.3%) were female. The mean ± SEM age of patients at preoperative PSG was 1.3 ± 0.89 years (range, 0.003-2.9). In entire cohort, the mean obstructive apnea-hypopnea index score was reduced from 26.6 events/h before supraglottoplasty to 7.3 events/h after surgery ( P = .003). Respiratory disturbance index was reduced from 27.3 events/h before supraglottoplasty to 7.8 events/h after surgery ( P = .003). The percentage of REM sleep decreased from 30.1% ± 2.4 to 24.8% ± 1.3 ( P = .04). Sleep efficiency was improved ( P = .05).ConclusionOverall, supraglottoplasty significantly improved several PSG outcomes in children with laryngomalacia. However, mild to moderate OSA was still present postoperatively in most children. This suggested a multifactorial cause for OSA in this population.

scholarly journals Severity of obstructive sleep apnea (OSA) in 382 Han and Uyghur patients with sleep disorders

2018 ◽  
Vol 01 (02) ◽  
pp. 163-169
Author(s):  
Aman Gul ◽  
Nassirhadjy Memtily ◽  
Aikeranmu Aihemaiti ◽  
Amir Abdukadir ◽  
Palidan Wushuer
Keyword(s):  
Obstructive Sleep Apnea ◽  
Sleep Apnea ◽  
Race And Ethnicity ◽  
Impact Factors ◽  
Apnea Hypopnea Index ◽  
Obstructive Sleep ◽  
Significant Difference ◽  
Adults And Children ◽  
Respiratory Disturbance ◽  
Distinctive Difference

Objective: Race and ethnicity may impact the prevalence and severity of Obstructive Sleep Apnea (OSA) in adults and children. In this study, we aim to investigate the ethnologic influence on OSA severity between Han and Uyghur OSA patients in Xinjiang, China.Methods: We enrolled total of 382 (205 Han and 177 Uyghur) patients diagnosed with OSA with apnea/hypopnea index (AHI) or respiratory disturbance index (RDI) [Formula: see text] 5. During admission, the severity of OSA was evaluated by polysomnography (PSG).Results: From demographic characteristics of enrolled patients, we found that there was no significant difference in sex, age, BMI, and neck circumference between two study populations. Uyghur OSA patients had longer sleep latency, longer REM sleep and N3 stage, but shorter N1 phase than Han OSA patients. AHI and apnea RDI level, but not hypopnea RDI, were evidently higher in Han patients compared with Uyghur patients. There was no distinctive difference between two ethnic populations in average and minimum peripheral capillary oxygen saturation (SaO2) level.Conclusion: Better understanding of impact factors encompassing ethnicity may help improve OSA diagnosis accuracy, management and treatment for patients in Xinjiang.

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