Role of Sinonasal Anatomic Variations in the Development of Maxillary Sinusitis: A Cone Beam CT Analysis

Khojastepour, Leila; Haghnegahdar, Abdolaziz; Khosravifard, Negar

doi:10.2174/1874210601711010367

Cited by 17 publications

(21 citation statements)

References 21 publications

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“…The form of RS (CRS vs ARS) was not delineated, but the study suggests that obstruction of the OMC can lead to ethmoid and maxillary mucosal disease. Similarly, Khojastepour et al 333 found that infraorbital cells are associated with maxillary mucosal disease on cone beam CT scan in patients presenting for rhinoplasty evaluation. In addition, other studies have demonstrated that sphenoethmoidal cells (Onodi cells) may be associated with radiographic sphenoid mucosal thickening, again, ostensibly from narrowing of the natural sinus ostia 787 …”

Section: Chronic Rhinosinusitis Without Nasal Polyps (Crssnp)mentioning

confidence: 93%

“…There is mixed evidence supporting the association of ARS (definition based on clinical suspicion and mucosal thickening on imaging) and anatomical variants specific to concha bullosa, 305,329–331 nasal septal deviation, 305,329,331,332 infraorbital ethmoid cell, 305,329–331,333 infundibulum stenosis, 305,329,330,333 or agger nasi cell 329,331 . There is also limited evidence of association with radiographic mucosal thickening and findings of intralamellar cells, 329 MT hypertrophy, 329 aerated uncinate process, 329,330 and asymmetry of the ethmoid roof 330 .…”

Section: Acute Rhinosinusitis (Ars)mentioning

confidence: 99%

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International consensus statement on allergy and rhinology: rhinosinusitis 2021

Orlandi

Kingdom

Smith

et al. 2021

Int Forum Allergy Rhinol

525

479

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I. Executive Summary Background The 5 years since the publication of the first International Consensus Statement on Allergy and Rhinology: Rhinosinusitis (ICAR‐RS) has witnessed foundational progress in our understanding and treatment of rhinologic disease. These advances are reflected within the more than 40 new topics covered within the ICAR‐RS‐2021 as well as updates to the original 140 topics. This executive summary consolidates the evidence‐based findings of the document. Methods ICAR‐RS presents over 180 topics in the forms of evidence‐based reviews with recommendations (EBRRs), evidence‐based reviews, and literature reviews. The highest grade structured recommendations of the EBRR sections are summarized in this executive summary. Results ICAR‐RS‐2021 covers 22 topics regarding the medical management of RS, which are grade A/B and are presented in the executive summary. Additionally, 4 topics regarding the surgical management of RS are grade A/B and are presented in the executive summary. Finally, a comprehensive evidence‐based management algorithm is provided. Conclusion This ICAR‐RS‐2021 executive summary provides a compilation of the evidence‐based recommendations for medical and surgical treatment of the most common forms of RS.

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Section: Chronic Rhinosinusitis Without Nasal Polyps (Crssnp)mentioning

confidence: 93%

Section: Acute Rhinosinusitis (Ars)mentioning

confidence: 99%

International consensus statement on allergy and rhinology: rhinosinusitis 2021

Orlandi

Kingdom

Smith

et al. 2021

Int Forum Allergy Rhinol

525

479

View full text Add to dashboard Cite

show abstract

“…The paradoxical middle turbinate is thought to cause recurrent rhinosinusitis and prevent access to the ostiomeatal unit during surgery [2]. Paradoxical middle turbinate can cause recurrent infundibular disease and sometimes headache [13,20]. In our study, the paradoxical middle turbinate occurred on the right side 12.1% of the time, on the left side 8.3% of the time and on both sides 5.7% of the time.…”

Section: Discussionsupporting

confidence: 44%

“…In several studies, the prevalence of Agger nasi cells varied between 61.4% and 98.5%. However, in 90.6% of cases, the presence of agger nasi cells was bilateral [4,13]. Unlike other studies, agger nasi cells were found on the right side in 51% patients, on the left side in 51% of patients and on both sides in 47.1% of patients.In addition, patients with agger nasi cell had a higher incidence of Haller cells and maxillary septa.…”

Section: Discussionmentioning

confidence: 72%

The relationship between nasal septal deviation and anatomical variations of the paranasal sinus

Dikici

Durgut

2021

The European Research Journal

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Objectives:The aim of this study was to determine the relationship between septum deviation and anatomic variations of the paranasal sinus. Methods: A total of 157 (79 males, 78 females) patients between the ages of 17 and 77 years (mean age: 33.7 ± 14.9 years) were included in the study. Using paranasal sinus computed tomography imaging, anatomical variations including nasal septal deviation, Agger nasi cells, Haller cells, Onodi Cells, sphenoid sinus pneumatisation, paradoxical middle turbinates, middle turbinate pneumatisation, maxillary sinus septa,vertical septa in the sphenoid sinus, optic nerve dehiscenceand cribriform plate lamina lateralis height were evaluated. Results: Agger nasi cells were present in 47.1% of cases, Haller cells were seen in 5% of cases and Onodi cells were observed in 23.6% of cases. In 70.1% of cases, one vertical septa in the sphenoid sinus was observed. Maxillary sinus septa was observed in 16.5% of cases. There was a significant negative correlation between the female gender and increased sphenoid sinus pneumatisation (p = 0.035). There was a positive correlation between maxillary sinus septa and the presence of Onodi cells (p right = 0.045, p left = 0.017). There was also a negative correlation between maxillary sinus septa and sphenoid sinus pneumatisation (p right = 0.001, p left = 0.005). Conclusions: In our study, we found that maxillary sinus septa, Agger nasi, Haller cells, cribriform plate lamina lateralis height, sphenoid sinus septation and Onodi cells were interrelated. We recommend that surgeons evaluate patients with these variations to prevent complications.

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“…7 Currently, cone-beam computed tomography (CBCT) is the technique of choice for various 3D imaging purposes in dentistry. 8 However, in cases in which high-density, metallic objects, such as titanium implants, are positioned within the field of view (FOV), image quality is degraded as a result of streaking and beam-hardening artifacts, rendering the bone around the implant difficult to evaluate. 9 The severity of these artifacts, which in some cases can be sufficient to mask peri-implant bone defects, depends on several factors, including the type of CBCT device used, the FOV dimensions, the position of the object within the FOV, and the application of metal artifact reduction algorithms.…”

Section: Introductionmentioning

confidence: 99%

Detection of peri-implant bone defects using cone-beam computed tomography and digital periapical radiography with parallel and oblique projection

et al. 2019

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Purpose: To compare the diagnostic accuracy of cone-beam computed tomography (CBCT) with that of parallel (PPA) and oblique projected periapical (OPA) radiography for the detection of different types of peri-implant bone defects. Materials and Methods: Forty implants inserted into bovine rib blocks were used. Thirty had standardized bone defects (10 each of angular, fenestration, and dehiscence defects), and 10 were defect-free controls. CBCT, PPA, and OPA images of the samples were acquired. The images were evaluated twice by each of 2 blinded observers regarding the presence or absence and the type of the defects. The area under the receiver operating characteristic curve (AUC), sensitivity, and specificity were determined for each radiographic technique. The 3 modalities were compared using the Fisher exact and chi-square tests, with P<0.05 considered as statistical significance. results: High inter-examiner reliability was observed for the 3 techniques. Angular defects were detected with high sensitivity and specificity by all 3 modalities. CBCT and OPA showed similar AUC and sensitivity in the detection of fenestration defects. In the identification of dehiscence defects, CBCT showed the highest sensitivity, followed by OPA and PPA, respectively. CBCT and OPA had a significantly greater ability than PPA to detect fenestration and dehiscence defects (P<0.05). conclusion: The application of OPA radiography in addition to routine PPA imaging as a radiographic follow-up method for dental implantation greatly enhances the visualization of fenestration and dehiscence defects. CBCT properly depicted all defect types studied, but it involves a relatively high dose of radiation and cost. (Imaging Sci Dent 2019; 49: 265-72)

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Role of Sinonasal Anatomic Variations in the Development of Maxillary Sinusitis: A Cone Beam CT Analysis

Cited by 17 publications

References 21 publications

International consensus statement on allergy and rhinology: rhinosinusitis 2021

International consensus statement on allergy and rhinology: rhinosinusitis 2021

The relationship between nasal septal deviation and anatomical variations of the paranasal sinus

Detection of peri-implant bone defects using cone-beam computed tomography and digital periapical radiography with parallel and oblique projection

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