1
|
李 彦, 费 南, 曹 莉, 施 云, 鲜 军. [Effect of mouth breathing on upper airway structure in patients with obstructive sleep apnea]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2023; 37:529-534. [PMID: 37549944 PMCID: PMC10570098 DOI: 10.13201/j.issn.2096-7993.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Indexed: 08/09/2023]
Abstract
Objective:To compare the changes of morphology of pharynx in patients with obstructive sleep apnea hypopnea syndrome (OSAHS) and healthy individuals during oral or nasal breathing, and explore the relevant influencing factors. Methods:Twenty-nine adult patients with OSAHS and 20 non-snoring controls underwent MRI to obtain upper airway structural measurements while the subjects were awake and during mouth breathing with a nasal clip.The following were analyzed. ①The changes of upper airway structure of oral and nasal respiration in non-snoring control/OSAHS patients were observed; ②The differences and influencing factors of upper airway structure changes between OSAHS patients and controls were compared during breathing. Results:The control group consisted of 15 males and 5 females, with an apnea-hypopnea index (AHI)<5 events/h, while the OSAHS group comprised 26 males and 3 females with an AHI of 40.4±23.1 events/h and the mean lowest arterial oxygen saturation (LSaO2) was 79.5% ±10.0%. In the both groups, the vertical distance between the mandible and the posterior pharyngeal wall decreased (P<0.05); The long axis of tongue body decreased (P<0.05), and the contact area between tongue and palate decreased. There was no significant change in the total volume of the retropalatine(RP) and retroglossal(RG) airway in the control group (P>0.05). However, the minimum cross-sectional area and volume of the RP airway in OSAHS decreased (P<0.001). The lateral diameters of uvula plane in OSAHS decreased during mouth breathing, which was contrary to the trend in the control group (P=0.017). The AHI of patients was positively correlated with the reduction of the volume of the RP airway during oral breathing (P=0.001); The reduction of the distance between the mandible and the posterior pharyngeal wall was positively correlated with the length of the airway (P<0.001). Conclusion:Mouth breathing leads to the shortening of the long axis of the tongue, the reduction of the contact area between the soft palate and the tongue, vertical distance between the mandible and the posterior pharyngeal wall, and the cross-sectional area of the epiglottis plane. These changes vary between OSAHS patients and controls. During mouth breathing, the diameters, areas and volumes of the RP area decreased, and were more significant in severe cases.
Collapse
Affiliation(s)
- 彦如 李
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科 耳鼻咽喉头颈科学教育部重点实验室(首都医科大学)(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery[Capital Medical University], Ministry of Education, Beijing, 100730, China
| | - 南希 费
- 首都医科大学附属北京同仁医院放射科Department of Radiology, Beijing Tongren Hospital, Capital Medical University
| | - 莉莉 曹
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科 耳鼻咽喉头颈科学教育部重点实验室(首都医科大学)(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery[Capital Medical University], Ministry of Education, Beijing, 100730, China
| | - 云瀚 施
- 首都医科大学附属北京同仁医院耳鼻咽喉头颈外科 耳鼻咽喉头颈科学教育部重点实验室(首都医科大学)(北京,100730)Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otolaryngology Head and Neck Surgery[Capital Medical University], Ministry of Education, Beijing, 100730, China
| | - 军舫 鲜
- 首都医科大学附属北京同仁医院放射科Department of Radiology, Beijing Tongren Hospital, Capital Medical University
| |
Collapse
|
2
|
Yanagida R, Hara K, Namiki C, Okumura T, Saiki A, Nakagawa K, Yamaguchi K, Yoshimi K, Nakane A, Mauclaire JM, Tohara H. Effects of tongue right positioner use on tongue pressure: a pilot study. Sci Rep 2023; 13:3289. [PMID: 36841869 PMCID: PMC9968309 DOI: 10.1038/s41598-023-30450-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Accepted: 02/23/2023] [Indexed: 02/27/2023] Open
Abstract
The effectiveness of the tongue right positioner (TRP) use on oral and swallowing functions remains unclear. To investigate the effects of TRP use on tongue function in patients with dysphagia. This interventional study included eight participants with dysphagia who visited a university dental hospital. The measurement variables included tongue pressure (TP) as the primary outcome and lip and tongue movements, peak nasal inspiratory flow, and changes in the tongue and suprahyoid muscle regions on ultrasonography as the secondary outcomes. Each participant was asked to use a TRP for at least 8 h every night for 2 months. The measurement variables before and after the intervention were compared using the paired t test and Wilcoxon signed-rank test. TP after intervention (31.5 ± 13.1 kPa) was significantly higher than that before intervention (23.0 ± 13.4 kPa), while other measurement variables did not significantly improve. Numerous exercises have been suggested to improve TP; however, most require patients' adherence to instructions. In contrast, although participants did not perform active exercises, most participants in this study observed an improved TP. Our findings show that TRP can greatly improve TP after 2 months of usage.Trial registration number: University Hospital Medical Information Network Clinical Trials Registry (UMIN000040253, date of first registration: 27/04/2020).
Collapse
Affiliation(s)
- Ryosuke Yanagida
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Koji Hara
- Department of Dentistry for the Special Patient, Kanagawa Dental University, 82 Inaokacho, Yokosuka, Kanagawa, 238-8580, Japan.
| | - Chizuru Namiki
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Dentistry for the Special Patient, Kanagawa Dental University, 82 Inaokacho, Yokosuka, Kanagawa, 238-8580, Japan
| | - Takuma Okumura
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Akino Saiki
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazuharu Nakagawa
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kohei Yamaguchi
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kanako Yoshimi
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Ayako Nakane
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | | | - Haruka Tohara
- Department of Dysphagia Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| |
Collapse
|
3
|
Influence of postural changes on nasal resistance in patients with obstructive sleep apnea. Sleep Breath 2022; 27:943-952. [DOI: 10.1007/s11325-022-02685-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 06/24/2022] [Accepted: 07/18/2022] [Indexed: 10/16/2022]
|
4
|
Improving Nasal Airflow with a Novel Nasal Breathing Stent. Dent J (Basel) 2022; 10:dj10050081. [PMID: 35621534 PMCID: PMC9139877 DOI: 10.3390/dj10050081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 04/05/2022] [Accepted: 05/05/2022] [Indexed: 02/06/2023] Open
Abstract
Nasal obstruction requires close attention, as it is a risk factor for obstructive sleep apnea (OSA). This study evaluated airflow rates of our newly designed nasal breathing stent (NBS) compared with those of existing nasal dilators in 10 adult men. We hypothesized that the NBS would expand the nasal passage more than the other nasal dilators by means of airflow measurements. We compared airflow measurements between the NBS and three existing appliances and no appliance. Velocity measurements were recorded by analyzing 499 videographic images when each appliance was placed next to a steam generator at 0, 5, and 10 mm from the outlet port for airflow visualization. The peak nasal inspiratory flow (PNIF) rate was measured using an inspiratory flow meter. The NBS resulted in significantly higher airflow velocity measurements at all distances from the outlet port and a higher PNIF rate than the other appliances. Thus, the NBS offers a significantly decreased resistance to air movement compared with other appliances. Future in-depth investigations are required to demonstrate the use of NBS as a nasal dilator in conjunction with continuous positive airway pressure/oral appliance treatments in patients with OSA.
Collapse
|