Pub Date : 2023-02-16DOI: 10.26420/austinjotolaryngol.2023.1127
T. D, T. G, Shriyan Aj
Schneiderian papillomas are papillomas arising in the sinonasal tract, which is lined with Schneiderian epithelium, ectodermally derived respiratory mucosa [1,2]. This distinctive epithelium can give rise to three histologically unique types of papillomas: exophytic (fungiform, septal, and squamous), inverted (inverting), and oncocytic (cylindrical cell and columnar) papillomas. Exophytic papillomas almost exclusively arise from the nasal septum with rare cases arising from the vestibule or middle turbinate. In this paper a case of Exophytic papilloma in 52 year old male is presented.
{"title":"Exophytic Papilloma","authors":"T. D, T. G, Shriyan Aj","doi":"10.26420/austinjotolaryngol.2023.1127","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2023.1127","url":null,"abstract":"Schneiderian papillomas are papillomas arising in the sinonasal tract, which is lined with Schneiderian epithelium, ectodermally derived respiratory mucosa [1,2]. This distinctive epithelium can give rise to three histologically unique types of papillomas: exophytic (fungiform, septal, and squamous), inverted (inverting), and oncocytic (cylindrical cell and columnar) papillomas. Exophytic papillomas almost exclusively arise from the nasal septum with rare cases arising from the vestibule or middle turbinate. In this paper a case of Exophytic papilloma in 52 year old male is presented.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117201330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-02-16DOI: 10.26420/austinjotolaryngol.2023.1126
Bhandary R, Shriyan Aj
A majority of the population will experience epistaxis at some time in their life. Most cases will be from an anterior source and can be treated with pressure, anterior nasal packing, or cautery. Intractable epistaxis is generally posterior in origin and may require endoscopic cauterization, posterior packing, ligation of external carotid artery or embolization. Here we report a case of bilateral posterior epistaxis in a 41 year old male patient with c/o spontaneous epistaxis from bilateral nostril. Digital Subtraction Angiography followed by Angioembolisation was done.
{"title":"Angioembolism for the Management of Refractory Epistaxis","authors":"Bhandary R, Shriyan Aj","doi":"10.26420/austinjotolaryngol.2023.1126","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2023.1126","url":null,"abstract":"A majority of the population will experience epistaxis at some time in their life. Most cases will be from an anterior source and can be treated with pressure, anterior nasal packing, or cautery. Intractable epistaxis is generally posterior in origin and may require endoscopic cauterization, posterior packing, ligation of external carotid artery or embolization. Here we report a case of bilateral posterior epistaxis in a 41 year old male patient with c/o spontaneous epistaxis from bilateral nostril. Digital Subtraction Angiography followed by Angioembolisation was done.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129477533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-09-08DOI: 10.26420/austinjotolaryngol.2021.1125
D. T., R. A., Mahesh Sg, Devan Pp, Bhandary R, P. V
Extra Capsular Dissection (ECD) differs markedly from classic surgical approaches to the parotid neoplasm because facial nerve dissection is not performed. Factors noted to favor this approach include mobility of the tumor within the gland, a thin covering of capsule and glandular tissue, and a tumor large enough to allow digital manipulation during dissection. Imaging, fine needle aspiration cytology, and neuron-monitoring play a heightened role in ECD [1]. The AIM of this article is to report case series on surgical management of few types of parotid tumors by extra capsular dissection and to assess longterm results after the treatment of Parotid tumors using surgical technique ECD. This case series includes five different parotid tumors such as Warthin’s tumor, Pleomorphic adenoma, Sialadenoma papilliferum of parotid, chronic sialoadenitis, Parotid cystadenoma, out of 30 cases operated in our hospital. All the patients in this study received appropriate surgical treatment (ECD) and done a follow up evaluation every month. Extra capsular dissection is a safe, reliable and recommended technique to manage the small benign superficial parotid tumors if the case is selected properly.
{"title":"Case Series-An Overview of Extracapsular Dissection of Parotid Tumours","authors":"D. T., R. A., Mahesh Sg, Devan Pp, Bhandary R, P. V","doi":"10.26420/austinjotolaryngol.2021.1125","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2021.1125","url":null,"abstract":"Extra Capsular Dissection (ECD) differs markedly from classic surgical approaches to the parotid neoplasm because facial nerve dissection is not performed. Factors noted to favor this approach include mobility of the tumor within the gland, a thin covering of capsule and glandular tissue, and a tumor large enough to allow digital manipulation during dissection. Imaging, fine needle aspiration cytology, and neuron-monitoring play a heightened role in ECD [1]. The AIM of this article is to report case series on surgical management of few types of parotid tumors by extra capsular dissection and to assess longterm results after the treatment of Parotid tumors using surgical technique ECD. This case series includes five different parotid tumors such as Warthin’s tumor, Pleomorphic adenoma, Sialadenoma papilliferum of parotid, chronic sialoadenitis, Parotid cystadenoma, out of 30 cases operated in our hospital. All the patients in this study received appropriate surgical treatment (ECD) and done a follow up evaluation every month. Extra capsular dissection is a safe, reliable and recommended technique to manage the small benign superficial parotid tumors if the case is selected properly.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114743132","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-21DOI: 10.26420/austinjotolaryngol.2021.1124
T. D, C. G
Pleomorphic adenomas are benign salivary gland tumours, which predominantly affect the superficial lobe of the parotid gland. The “pleomorphic” nature of the tumour can be explained on the basis of its epithelial and connective tissue origin. The tumour has a female predilection between 30-50 years of age. Slowly progressing asymptomatic swelling is the usual presentation of the tumour. Surgical excision of the tumour mass forms the mainstay of treatment, with utmost care taken to preserve the facial nerve. This case report aims to throw light on an interesting case of pleomorphic adenoma of the parotid gland in a 10 years old female patient. The patient presented with a slowly progressing asymptomatic swelling on the right side of the face, which was diagnosed to be pleomorphic adenoma of right parotid gland. The aim of the study is to discuss how to proceed regarding the further management.
{"title":"A Rare Case of Paediatric Pleomorphic Adenoma of the Parotid Gland","authors":"T. D, C. G","doi":"10.26420/austinjotolaryngol.2021.1124","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2021.1124","url":null,"abstract":"Pleomorphic adenomas are benign salivary gland tumours, which predominantly affect the superficial lobe of the parotid gland. The “pleomorphic” nature of the tumour can be explained on the basis of its epithelial and connective tissue origin. The tumour has a female predilection between 30-50 years of age. Slowly progressing asymptomatic swelling is the usual presentation of the tumour. Surgical excision of the tumour mass forms the mainstay of treatment, with utmost care taken to preserve the facial nerve. This case report aims to throw light on an interesting case of pleomorphic adenoma of the parotid gland in a 10 years old female patient. The patient presented with a slowly progressing asymptomatic swelling on the right side of the face, which was diagnosed to be pleomorphic adenoma of right parotid gland. The aim of the study is to discuss how to proceed regarding the further management.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129488341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-01DOI: 10.26420/austinjotolaryngol.2021.1122
F. Burlo, P. Staffa, E. Barbi, A. Boscarelli, E. Orzan, Grasso Dl
A three-month-old infant was referred to the emergency department with fever and a right cervical abscess. Nasopharyngeal swab was positive for SARSCoV- 2 infection. Main causes of infectious abscess and immunodeficiency disorders were ruled out. After a surgical drainage and an antibiotic therapy, clinical conditions of the infant improved, and Staphylococcus Aureus was found in the wound drainage culture. This is a possible, not yet described in infant patients, concurrent clinical manifestation of SARS-CoV-2 infection.
{"title":"COVID-19 Infection and Cervical Abscess in a Three-Month-Old Infant","authors":"F. Burlo, P. Staffa, E. Barbi, A. Boscarelli, E. Orzan, Grasso Dl","doi":"10.26420/austinjotolaryngol.2021.1122","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2021.1122","url":null,"abstract":"A three-month-old infant was referred to the emergency department with fever and a right cervical abscess. Nasopharyngeal swab was positive for SARSCoV- 2 infection. Main causes of infectious abscess and immunodeficiency disorders were ruled out. After a surgical drainage and an antibiotic therapy, clinical conditions of the infant improved, and Staphylococcus Aureus was found in the wound drainage culture. This is a possible, not yet described in infant patients, concurrent clinical manifestation of SARS-CoV-2 infection.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121637486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-07DOI: 10.26420/austinjotolaryngol.2021.1121
R. Bhandary, S. Poojitha
Lingual hematoma is a rare cause of airway compromise and is usually seen secondary to use of anticoagulants, which exerts effects on coagulation cascade, and also causes thrombocytopenia. The patient in this case report presents with a lingual hematoma which is not related to the use of any anticoagulants. Luckily, the hematoma did not enlarge enough to cause obstruction of airway requiring tracheotomy. However, the cause of the hematoma is deduced to be due to husk - injuring the tongue mucosa. This case is unique in its rare presentation as well as the cause for the hematoma in our report has never been reported in literature.
{"title":"Lingual Hematoma: A Rare Presentation","authors":"R. Bhandary, S. Poojitha","doi":"10.26420/austinjotolaryngol.2021.1121","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2021.1121","url":null,"abstract":"Lingual hematoma is a rare cause of airway compromise and is usually seen secondary to use of anticoagulants, which exerts effects on coagulation cascade, and also causes thrombocytopenia. The patient in this case report presents with a lingual hematoma which is not related to the use of any anticoagulants. Luckily, the hematoma did not enlarge enough to cause obstruction of airway requiring tracheotomy. However, the cause of the hematoma is deduced to be due to husk - injuring the tongue mucosa. This case is unique in its rare presentation as well as the cause for the hematoma in our report has never been reported in literature.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117212308","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.26420/austinjotolaryngol.2021.1120
Allouch i, N. Belhaj, N. Benkhraba, R. Bencheikh, Benbouzid Ma, L. Essakalli
This is a 31-year-old patient with no notable pathological history, who presents an ulcerative-budding mass of the hard palate increasing rapidly and bleeding easily on contact, without palpable cervical lymphadenopathy or other associated signs, the injected face CT scan objectified the presence of a tissue lesion process of the hard palate, lateralized to the left, lysing the alveolar bone, bulging into the oral cavity and extending to the soft palate and soft gingival parts.
{"title":"Suspicious Hard Palate Tumor Revealing HIV Infection","authors":"Allouch i, N. Belhaj, N. Benkhraba, R. Bencheikh, Benbouzid Ma, L. Essakalli","doi":"10.26420/austinjotolaryngol.2021.1120","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2021.1120","url":null,"abstract":"This is a 31-year-old patient with no notable pathological history, who presents an ulcerative-budding mass of the hard palate increasing rapidly and bleeding easily on contact, without palpable cervical lymphadenopathy or other associated signs, the injected face CT scan objectified the presence of a tissue lesion process of the hard palate, lateralized to the left, lysing the alveolar bone, bulging into the oral cavity and extending to the soft palate and soft gingival parts.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132114899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-02-09DOI: 10.26420/AUSTINJOTOLARYNGOL.2021.1119
Zalvan C, Yuen E1, Cole J, Loftus C, Geliebter J, N. Sa
Objective: To propose a hypothesis of a novel potentially post-viral sensory neuropathic disorder, termed neurogenic dyspnea, and assess the therapeutic efficacy of a trigger reduction approach in this unique patient population. Methods: A retrospective chart review of patients seen between January 2011 and April 2018 for persistent dyspnea of unknown etiology was conducted. All patients failed to improve with treatment for presumptive diagnoses of allergy, asthma, sinus disease, and reflux. Patients were educated on our treatment protocol consisting of a Mediterranean style, plant-based diet with alkaline water, saline irrigation, and combined azelastine/fluticasone nasal spray. Treatment response was followed using two validated symptom questionnaires, Reflux Symptom Index (RSI) and Dyspnea Index (DI). Results: Of 57 initial patients, 8 were included in the final analysis. Mean age was 38.8 years (range 11-68). Six (75%) patients were female. All patients were followed for a minimum of 4 weeks. Using the reduction in DI and RSI as continuous variables to assess response, patients experienced a 9.4 (95% CI: 3.9-14.9) and 14.1 (95% CI: 6.0-22.2) mean point reduction, respectively. One patient saw a 100% and another a 95% reduction in DI. Six of eight patients experienced more than a 50% reduction in RSI. Conclusion: We hypothesize that Neurogenic Dyspnea is a newly described clinical phenomenon with a possible post-viral etiology. This pilot study demonstrated that our trigger reduction approach improved subjective symptoms in the majority of patients with unexplained dyspnea with previous treatment failure for common etiologies. Further studies are required to validate these findings.
{"title":"Neurogenic Dyspnea: Is Idiopathic Dyspnea Related to a Post-Viral Sensory Neuropathy? A Case Series Supporting a New Hypothesis","authors":"Zalvan C, Yuen E1, Cole J, Loftus C, Geliebter J, N. Sa","doi":"10.26420/AUSTINJOTOLARYNGOL.2021.1119","DOIUrl":"https://doi.org/10.26420/AUSTINJOTOLARYNGOL.2021.1119","url":null,"abstract":"Objective: To propose a hypothesis of a novel potentially post-viral sensory neuropathic disorder, termed neurogenic dyspnea, and assess the therapeutic efficacy of a trigger reduction approach in this unique patient population. Methods: A retrospective chart review of patients seen between January 2011 and April 2018 for persistent dyspnea of unknown etiology was conducted. All patients failed to improve with treatment for presumptive diagnoses of allergy, asthma, sinus disease, and reflux. Patients were educated on our treatment protocol consisting of a Mediterranean style, plant-based diet with alkaline water, saline irrigation, and combined azelastine/fluticasone nasal spray. Treatment response was followed using two validated symptom questionnaires, Reflux Symptom Index (RSI) and Dyspnea Index (DI). Results: Of 57 initial patients, 8 were included in the final analysis. Mean age was 38.8 years (range 11-68). Six (75%) patients were female. All patients were followed for a minimum of 4 weeks. Using the reduction in DI and RSI as continuous variables to assess response, patients experienced a 9.4 (95% CI: 3.9-14.9) and 14.1 (95% CI: 6.0-22.2) mean point reduction, respectively. One patient saw a 100% and another a 95% reduction in DI. Six of eight patients experienced more than a 50% reduction in RSI. Conclusion: We hypothesize that Neurogenic Dyspnea is a newly described clinical phenomenon with a possible post-viral etiology. This pilot study demonstrated that our trigger reduction approach improved subjective symptoms in the majority of patients with unexplained dyspnea with previous treatment failure for common etiologies. Further studies are required to validate these findings.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123727965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-05-06DOI: 10.26420/austinjotolaryngol.2020.1108
Holmes Cp, Sharma Ar
Objective: The current study presents the first reported case of an incidental lacrimal gland choristoma in the setting of acute on chronic sinusitis with presumed orbital involvement. Background: Choristomas are benign masses comprised of histologically normal tissue located at abnormal sites likely due to aberrant implantation of embryonic cells. Only a handful of cases of lacrimal gland choristomas have been reported in the literature. Clinical Case: A 12-year-old boy presents with orbital proptosis in the context of acute on chronic sinusitis. Attempted intra-operative drainage incidentally revealed an orbital tumor. Conclusion: In the context of presumed orbital complications of acute on chronic sinusitis, orbital tumors must be considered. All sinus cases involving the orbit require an ophthalmology consult to ensure appropriate diagnostic and surgical management for these patients.
{"title":"Lacrimal Gland Choristoma in the Setting of Acute on Chronic Sinusitis: A Rare Case Report","authors":"Holmes Cp, Sharma Ar","doi":"10.26420/austinjotolaryngol.2020.1108","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2020.1108","url":null,"abstract":"Objective: The current study presents the first reported case of an incidental lacrimal gland choristoma in the setting of acute on chronic sinusitis with presumed orbital involvement. Background: Choristomas are benign masses comprised of histologically normal tissue located at abnormal sites likely due to aberrant implantation of embryonic cells. Only a handful of cases of lacrimal gland choristomas have been reported in the literature. Clinical Case: A 12-year-old boy presents with orbital proptosis in the context of acute on chronic sinusitis. Attempted intra-operative drainage incidentally revealed an orbital tumor. Conclusion: In the context of presumed orbital complications of acute on chronic sinusitis, orbital tumors must be considered. All sinus cases involving the orbit require an ophthalmology consult to ensure appropriate diagnostic and surgical management for these patients.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131669967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-01-15DOI: 10.26420/austinjotolaryngol.2019.1106
Y. Shigeta
Purpose: In our previous study, it was reported that the cross-section airway of OSA presented triangle shape, especially in the obese patients. From this finding, we hypothesized that there is structural weakness of airway in the bilateral posterior region. In this short report, to discover the weakness region in the airway, the airway configuration change under the negative pressure loading was observed. Methods: Subject was 33 year-old female, who had no OSA. It was investigated the pressure level of which she was able to keep same the same level stably and constantly for 15 seconds using a pressure gauge. This pressure level was applied during scanning CBCT (S_NP).The airway was scanned via a CBCT with 15 seconds, under following conditions; normal breathing and under S_NP. The airway volumes between the level of the posterior nasal spine and the tip of epiglottis were measured. Results: The airway configuration during normal breathing was elliptical shape. On the other hand, the airway under S_NP presented triangle shape. The airway volumes were 16040mm 3 during normal breathing, and 6567mm 3 under S_NP. The airway volume under S_NP decreased to 41%, compared with normal breathing. Conclusion: In this short report, it could observe the airway configuration under the negative pressure. As a result, the airway may be obstructed from posterolateral direction by fat tissue or negative pressure. This short report provided an importance of research regarding to the structural weakness in the airway.
{"title":"Is there Weakness Area in Airway","authors":"Y. Shigeta","doi":"10.26420/austinjotolaryngol.2019.1106","DOIUrl":"https://doi.org/10.26420/austinjotolaryngol.2019.1106","url":null,"abstract":"Purpose: In our previous study, it was reported that the cross-section airway of OSA presented triangle shape, especially in the obese patients. From this finding, we hypothesized that there is structural weakness of airway in the bilateral posterior region. In this short report, to discover the weakness region in the airway, the airway configuration change under the negative pressure loading was observed. Methods: Subject was 33 year-old female, who had no OSA. It was investigated the pressure level of which she was able to keep same the same level stably and constantly for 15 seconds using a pressure gauge. This pressure level was applied during scanning CBCT (S_NP).The airway was scanned via a CBCT with 15 seconds, under following conditions; normal breathing and under S_NP. The airway volumes between the level of the posterior nasal spine and the tip of epiglottis were measured. Results: The airway configuration during normal breathing was elliptical shape. On the other hand, the airway under S_NP presented triangle shape. The airway volumes were 16040mm 3 during normal breathing, and 6567mm 3 under S_NP. The airway volume under S_NP decreased to 41%, compared with normal breathing. Conclusion: In this short report, it could observe the airway configuration under the negative pressure. As a result, the airway may be obstructed from posterolateral direction by fat tissue or negative pressure. This short report provided an importance of research regarding to the structural weakness in the airway.","PeriodicalId":206976,"journal":{"name":"Austin Otolaryngology","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126404779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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