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agger nasi

Tsuguhisa Nakayama, Daiya Asaka, Akihito Kuboki, Tetsushi Okushi, Hiromi Kojima
PURPOSE: Endoscopic sinus surgery (ESS) is a well-established treatment for chronic rhinosinusitis (CRS). However, ESS for frontal sinusitis remains complicated and challenging. The aim of this study was to identify the relationship between residual frontal recess cells and primary ESS failure in the frontal sinus. METHODS: We prospectively collected information on 214 sides of 129 patients with CRS who underwent standard ESS from June 2010 to May 2011. To identify risk factors, we retrospectively analyzed clinical data and computed tomography (CT) images before and 3 months after surgery...
May 18, 2018: European Archives of Oto-rhino-laryngology
Y Zha, W Lv, Y L Gao, Z Z Zhu, Z Q Gao
Objective: To design and produce cross-sectional anatomical models of paranasal sinuses for the purpose of demonstrating drainage pathways of each nasal sinus for the young doctors. Method: We reconstructed the three-dimensional model of sinuses area based on CT scan data, and divided it into 5 thick cross-sectional anatomy models by 4 coronal plane,which cross middle points of agger nasi cell, ethmoid bulla, posterior ethmoid sinuses and sphenoid sinus respectively. Then a 3D printerwas used to make anatomical cross-sectional anatomical models...
May 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
Garret Choby, Andrew Thamboo, Tae-Bin Won, Jooyeon Kim, Liang Chun Shih, Peter H Hwang
BACKGROUND: The International Frontal Sinus Anatomy Classification (IFAC) is an international consensus document published in 2016 to standardize the nomenclature of cells in the region of the frontal recess and frontal sinus. The IFAC was designed to be surgically relevant and anatomically precise. The current study was undertaken to assess the prevalence of the frontal cell variants as defined by the IFAC, as well as to determine the interrater reliability of the IFAC. METHODS: Three independent reviewers examined triplanar nondiseased maxillofacial computed tomography (CT) scans to assess the anatomy of the frontal recess according to the IFAC system...
February 19, 2018: International Forum of Allergy & Rhinology
M Kaya, F Çankal, M Gumusok, N Apaydin, I Tekdemir
OBJECTIVE: The aim of this study was to determine the frequency of anatomic variations of the paranasal sinuses and their roles in the development of sinusitis. MATERIALS AND METHODS: Computed tomography of paranasal sinuses of 350 patients was assessed in terms of anatomic variations and inflammatory sinus pathology. The coexistence of anatomic variations with sinusitis was statistically investigated. RESULTS: At least one anatomical variation of paranasal sinuses was detected in 325 patients (92...
November 2017: Nigerian Journal of Clinical Practice
Marco Ferrari, Alberto Schreiber, Davide Mattavelli, Vittorio Rampinelli, Barbara Buffoli, Marco Ravanelli, Matteo Bettinsoli, Luigi F Rodella, Piero Nicolai
BACKGROUND: The complexity of the frontal sinus drainage pathway (FSDP) can be challenging even for expert surgeons. Several classifications have been proposed to simplify the understanding of FSDP, whose anatomical variability can be simplified based on the knowledge of its developmental mechanisms. METHODS: Cone-beam computed tomography studies performed at the Unit of Radiology of the University of Brescia between March and November 2012 were retrospectively analyzed...
May 2018: International Forum of Allergy & Rhinology
Ahmet Altıntaş, Mustafa Çelik, Yakup Yegin, Sinan Canpolat, Burak Olgun, Fatma Tülin Kayhan
OBJECTIVES: To explore the correlation between the volume of the aAgger nNasi (AN) cell bulge and the A-P length of the frontal recess (FR). SUBJECTS AND METHODS: In total, 120 patients, who underwent septoplasty, were included. All patients underwent preoperative paranasal sinus computed tomography of the paranasal sinuses (PNS CT) imaging. In total, CT data on of all 120 PNSs patients were analyzed in terms of thewith respect to the extent of pneumatization of the AN cell bulge and the A-P dimensions of the FR...
June 30, 2017: Otolaryngologia Polska
K Hashimoto, K Tsuzuki, K Okazaki, M Sakagami
OBJECTIVES: This study aimed to radiologically evaluate the influence of inflammatory changes in frontal recess cells on frontal sinusitis. METHODS: A total of 93 patients (186 sides) who underwent primary sinonasal surgery at Hyogo College of Medicine were enrolled in 2015 and 2016. Opacification of agger nasi, fronto-ethmoidal, ethmoid bulla, suprabullar and frontal bulla cells was determined by pre-operative computed tomography and its influence on frontal sinusitis was investigated...
July 2017: Journal of Laryngology and Otology
Neil S Patel, Amy C Dearking, Erin K O'Brien, John F Pallanch
Objective To define relationships between the frontal sinus opening, ostia of other frontal recess cells, and endoscopic landmarks and to develop a clinically useful framework to guide frontal sinus surgery. Study Design Retrospective review. Setting Tertiary care academic referral center. Methods Adult patients with computed tomography (CT) without sinonasal pathology were included. Virtual endoscopy (using OsiriX) and corresponding CT reconstructions were used to identify all visible ostia in the frontal recess and characterize their positions in spaces between the uncinate/agger nasi (U), bulla ethmoidalis (EB), and middle turbinate (MT)...
May 2017: Otolaryngology—Head and Neck Surgery
Sheng-Yao Cheng, Chih-Jen Yang, Chiao-Hua Lee, Shao-Cheng Liu, Chao-Yin Kuo, Jih-Chin Lee, Cheng-Ping Shih
The frontal sinus outflow pathway is complex and can be influenced by the configuration of the uncinate process (UP). The UP can attach superior to the lamina papyracea, skull base, and middle turbinate. The factors associated with superior attachment remain unclear. This study analyzed the relationships between different types of superior UP attachment and characteristics of the surrounding structures including the agger nasi cell, skull base, and middle turbinate. This retrospective study utilized computed tomography images of 836 sides with identifiable sinus structure from 434 Taiwanese patients...
April 2017: European Archives of Oto-rhino-laryngology
Jae-Hoon Lee, Ha-Min Jeong
No abstract text is available yet for this article.
December 2016: Ear, Nose, & Throat Journal
Nesibe Gül Yüksel Aslier, Nuri Karabay, Gülşah Zeybek, Pembe Keskinoğlu, Amaç Kiray, Semih Sütay, Mustafa Cenk Ecevit
The aim of this study is to describe the morphology of frontal recess area with its anatomical variations and to reveal if frontal recess morphology and the anatomical variations related to that region have effects on the pneumatization of the frontal sinuses. The frontal sinus and recess morphometry of 136 sides of 68 dry skulls were evaluated on multislice high-resolution computed tomography. The relationships between frontal sinus and frontal recess measurements were analyzed by correlation and linear regression analysis...
January 2017: Journal of Craniofacial Surgery
Linggai Shi, Jun Liu, Jiqing Ma, Fei Liu, Guangke Wang
Treatment of frontal sinus using surgery is complicated owing to the complex anatomical structure of the sinus region. The aim of the present study was to investigate the efficacy and safety of Draf IIb endoscopic frontal sinus surgery treatment for frontal sinus lesions using the agger nasi approach on 19 patients (28 left or and right nasal cavities). A 10-12 mm excision of the upper frontal maxilla was performed for endoscopic resection between the middle turbinate and lateral nasal wall. No serious complications in frontal sinus surgery treatment for the removal of the frontal sinus were observed...
September 2016: Experimental and Therapeutic Medicine
Vandana Mendiratta, Nitish Baisakhiya, Dalbir Singh, Ginni Datta, Amit Mittal, Parveen Mendiratta
To evaluate the incidence of anatomical variations in sinonasal area by nasal endoscopy and CT scan paranasal sinuses and to correlate the anatomical variations in sinonasal area with extent of disease. The present study was conducted on 40 patients of chronic sinusitis. All the patients underwent CT scan paranasal sinus axial and coronal view and nasal endoscopy. The most common anatomical variations were agger nasi cells (80 %), deviated nasal septum (72.5 %) and concha bullosa (47.5 %). Other anatomical variations seen in sinonasal region were uncinate process variations, paradoxical middle turbinate, haller cells, accessory ostia of maxillary sinus, multiseptated sphenoid...
September 2016: Indian Journal of Otolaryngology and Head and Neck Surgery
Andrew Thamboo, Nathalia Velasquez, Noel Ayoub, Jayakar V Nayak
BACKGROUND: Given the lack of basic diagnostic criteria for empty nose syndrome (ENS), we sought to define whether consistent radiographic characteristics could be identified to aid in the development of such criteria. METHODS: Computed tomography (CT) scans were collected from 65 patients diagnosed with ENS, patients with a history of submucosal inferior turbinate reduction (ITR) without ENS, and patients without a history of sinonasal procedures. Measurements were taken at the level of the nasolacrimal duct, including the inferior turbinate (IT) mucosal thickness, and the widest distances between septum-IT, nasal floor-IT, lateral nasal wall-IT, and septum-lateral nasal wall...
October 2016: International Forum of Allergy & Rhinology
Türk Bilge, Meltem Akpinar, Abdullah Soydan Mahmutoğlu, Irmak Uçak, Berna Uslu Coşkun
OBJECTIVE: Although sinonasal anatomic variations have been postulated as a risk factor for sinus disease, the role of anatomic abnormalities in the pathogenesis of nasal polyps is still unclear. This study was conducted to examine the association of sinonasal polyposis with anatomic variations. METHODS: The paranasal sinus computerized tomography scans of 155 patients with sinonasal polyposis were examined retrospectively from January 2012 to 2014 in a tertiary care hospital...
July 2016: Journal of Craniofacial Surgery
Paolo Farneti, Anna Riboldi, Vittorio Sciarretta, Ottavio Piccin, Paolo Tarchini, Ernesto Pasquini
PURPOSE: The endoscopic bidimensional vision offered by the endoscope during endoscopic sinus surgery involves difficulty in visualizing surgical field depth which makes it difficult to learn this surgical technique and makes it necessary for the endoscopic surgeon to mentally create a three-dimensional (3D) picture of the paranasal sinuses anatomy. In particular, frontal recess surgery requires good knowledge of its anatomic position, also since it is necessary to use angled endoscopes, which distort the view, and angular instruments which are difficult to use...
February 2017: Surgical and Radiologic Anatomy: SRA
Tsuyoshi Okuni, Kenichi Takano, Kazuaki Nomura, Keiji Yamashita, Ayumi Abe, Fumie Ito, Kosuke Murayama, Hideaki Shirasaki, Tetsuo Himi
It is necessary for the surgeon to be familiar with frontal recess anatomy during an endoscopic approach to the frontal sinuses. The aim of this study was to evaluate the prevalence of frontal recess cells in Japanese adults as well as the association between the frontal recess and the location of the anterior ethmoidal artery (AEA). The frontal recess cells and the AEAs were retrospectively evaluated in CT scans of the nasal and paranasal sinuses for 89 patients. The prevalence of agger nasi cells was 90.7%...
2016: Advances in Oto-rhino-laryngology
Patricia Anne Loftus, Juan Lin, Abtin Tabaee
BACKGROUND: The incidence and potential disease impact of paranasal sinus anatomic variants in patients with recurrent acute rhinosinusitis (RARS) has important implications for management, including surgery, but is incompletely defined. METHODS: A retrospective review of 26 patients with RARS who had undergone computed tomography (CT) was performed. Patient demographics, RARS severity and comorbidities were reviewed. CT scans were reviewed for the incidence of anatomic variants in all patients...
March 2016: International Forum of Allergy & Rhinology
Ufuk Dasar, Erkan Gokce
AIM: To investigate the frequency of anatomical variations in sinonasal region and association of these variations with mucosal diseases. METHODS: The study included 400 cases (191 female and 209 male) who were considered to have preliminary diagnoses of sinonasal pathology and who had paranasal sinus computed tomography (CT) examination in axial plane. Reformatted CT images were studied in all planes. RESULTS: Age range of the patients was 20-83 (mean 40...
January 28, 2016: World Journal of Radiology
Mohannad Al-Qudah, Diala Mardini
OBJECTIVE: To describe the prevalence of frontoethmoid cells and superior uncinate process attachment in pediatric patients with sinonasal symptoms. METHOD: Fifty high-resolution computed tomographies of the paranasal sinuses for pediatric patients were evaluated for the presence of frontoethmoid cells and uncinate process insertion. The computed tomographies were randomly collected for patients with sinonasal symptoms (age range, 4-15 years) at our clinic. The prevalence of these cells was compared against age group and type of uncinate process...
November 2015: American Journal of Rhinology & Allergy
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