Patency of the Maxillary Sinus Ostium in Healthy Individuals

1984 ◽  
Vol 97 (1-2) ◽  
pp. 137-149 ◽  
Author(s):  
Magnus Jannert ◽  
Lars Andréasson ◽  
Alf Ivarsson ◽  
Ann Nielsen
Keyword(s):  
Maxillary Sinus ◽  
Healthy Individuals ◽  
Sinus Ostium

scholarly journals Maxillary sinus cyst as a risk factor for osteomeatal complex block

2021 ◽  
pp. 54-61
Author(s):  
Yaroslav V. Shkorbotun
Keyword(s):  
Risk Factor ◽  
Maxillary Sinus ◽  
Sinus Lift ◽  
Healthy Individuals ◽  
Acute Rhinosinusitis ◽  
Osteomeatal Complex ◽  
Ostiomeatal Complex ◽  
Sinus Ostium ◽  
Complex Block ◽  
Vertical Size

Introduction: Cysts of the maxillary sinuses are found in about 10% of the population. There is a necessity to clarify indications for cyst removal taking into account its size. The purpose of the study to clarify the indications for surgical treatment of maxillary sinus cysts as a risk factor for sinus drainage disorders in the development of maxillary sinusitis. Methods and materials: 57 people (92 sinuses) were examined. There were 20 patients (40 sinuses) with acute rhinosinusitis, 22 patients (22 sinuses) with post-augmentation sinusitis, and 15 (30 sinuses) almost healthy individuals among them. Prediction of the cyst size, which can lead to blockage of the maxillary sinus ostium, was performed by direct measurement on coronary sections at the ostiomeatal complex level distance from the surface of the mucoperiosteum in the area of the alveolar recessus to the lower surface of the mucosal surface in the area of the ostium. The obtained data were verified by calculation method taking into account the height of the sinus at the level of the osteomeatal complex, the magnitude of possible mucoperiosteum edema in the alveolar recessus and ostium in acute rhinosinusitis and post-augmentation sinusitis, as well as the magnitude of mucoperiosteum elevation due to sinus lift. Results: It was found that the vertical size of the cyst, which can potentially lead to blockage of the maxillary sinus ostium in acute rhinosinusitis is 21.2±0.8 mm, 14.7±1.1 mm in sinusitis after augmentation of the maxilla, and 28.5±0.7 mm in practically healthy individuals. The calculated values are 18.5 mm, 14.0 mm and 24.5 mm, respectively. In case of acute rhinosinusitis, the distance from the apex of the cyst to the surface of the mucous membrane of the ostiomeatal complex area may decrease by 12.8 mm, and in sinusitis after sinus lift it may decrease by 20.4 mm. Conclusions: To assess the potential of the ostiomeatal complex block by a cyst located in the alveolar recessus in acute rhinosinusitis, its vertical size is really important according to coronary sections of at the ostiomeatal complex level corresponding to the location of 5-6 teeth of the upper jaw. The indication for removal of the cyst of the alveolar recessus of the maxillary sinus, as a factor that may worsen the course of acute rhinosinusitis due to the anastomosis block, is its size exceeding 20 mm, and 15 mm for patients who plan to sinus lift.

scholarly journals Maxillary sinus ostium assessment: A CT study

2018 ◽  
Vol 49 (4) ◽  
pp. 1009-1013 ◽  
Author(s):  
Mohammad Waheed El-Anwar ◽  
Ashraf Raafat ◽  
Rania Mostafa Almolla ◽  
Ahmed Mohamed Alsowey ◽  
Saad Elzayat
Keyword(s):  
Maxillary Sinus ◽  
Sinus Ostium

Maxillary Sinus Atelectasis with Enophthalmos

1998 ◽  
Vol 107 (1) ◽  
pp. 34-39 ◽  
Author(s):  
James H. Boyd ◽  
Karen Yaffee ◽  
John Holds
Keyword(s):  
Bone Resorption ◽  
Maxillary Sinus ◽  
Maxillary Sinusitis ◽  
Endoscopic Technique ◽  
Orbital Floor ◽  
Review Of The Literature ◽  
Comprehensive Review ◽  
Middle Meatal Antrostomy ◽  
Chronic Maxillary Sinusitis ◽  
Sinus Ostium

Chronic maxillary sinusitis may present as atelectasis of the sinus with changes to surrounding structures. Several mechanisms have been proposed for this problem. Chronic obstruction of the sinus ostium, with resultant retention of secretions and osteitic bone resorption, may account for these changes. Enophthalmos is one manifestation that may require corrective treatment. Titanium micromesh reconstruction of the orbital floor, with or without onlay concha cartilage, has reliably resolved the enophthalmos. Reconstruction of the orbital floor and ventilation of the obstructed sinus ostium may be carried out relatively safely in a single operation. The standard endoscopic technique of uncinate removal and middle meatal antrostomy should be modified to prevent orbital penetration. This report reviews our series of 6 patients with this problem, as well as a comprehensive review of the literature. Recommendations for management of both the obstruction and the secondary orbital manifestations are presented.

scholarly journals Endoscopic View of an Obstructing Polyp of the Maxillary Sinus Ostium Viewed through an Accessory Ostium

2004 ◽  
Vol 83 (11) ◽  
pp. 734-735
Author(s):  
Joseph P. Mirante ◽  
Dewey A. Christmas ◽  
Eiji Yanagisawa
Keyword(s):  
Maxillary Sinus ◽  
Endoscopic View ◽  
Sinus Ostium

Effect of Oxymetazoline on Nasal and Sinus Mucosal Blood Flow in the Rabbit as Measured with Laser-Doppler Flowmetry

1993 ◽  
Vol 102 (2) ◽  
pp. 123-126 ◽  
Author(s):  
Anders Åkerlund ◽  
Karl-E. Arfors ◽  
Mats Bende ◽  
Marcos Intaglietta
Keyword(s):  
Blood Flow ◽  
Maxillary Sinus ◽  
Laser Doppler Flowmetry ◽  
Mucosal Blood Flow ◽  
Laser Doppler ◽  
Negative Consequences ◽  
Doppler Flowmetry ◽  
Dose Dependent Decrease ◽  
Dose Dependent ◽  
Sinus Ostium

The effect of topical oxymetazoline hydrochloride on the blood flow of the nasal and sinus mucosa of the rabbit was measured by laser-Doppler flowmetry. Oxymetazoline, the active component in clinically used nose drops, induced a dose-dependent decrease of the nasal mucosal blood flow. This effect has previously been shown in humans and suggests the presence of α2–adrenoceptors in the nasal mucosa of the rabbit. Doses of oxymetazoline used clinically in humans induced a 50% reduction of blood flow in rabbits. Rhythmic variations in blood flow were seen in 30% of the rabbits after administration of oxymetazoline. Additionally, oxymetazoline induced a dose-dependent decrease of the mucosal blood flow in the maxillary sinus when the drug was applied in the nose. A vasoconstricting effect of oxymetazoline on the arteries penetrating the maxillary sinus ostium is a possible explanation. This can have positive as well as negative consequences on acute sinus infections.

scholarly journals Unusual Appearance of the Maxillary Sinus Ostium on Transnasal Endoscopy

1999 ◽  
Vol 78 (2) ◽  
pp. 80-81 ◽  
Author(s):  
Eiji Yanagisawa ◽  
John K. Joe ◽  
Dewey A. Christmas
Keyword(s):  
Maxillary Sinus ◽  
Transnasal Endoscopy ◽  
Sinus Ostium ◽  
Unusual Appearance

Reevaluation of Maxillary Sinus Surgery: Experimental Study in Rabbits

1989 ◽  
Vol 98 (11) ◽  
pp. 901-906 ◽  
Author(s):  
David W. Kennedy ◽  
Hisham Shaalan
Keyword(s):  
Maxillary Sinus ◽  
Complex Disease ◽  
Mucociliary Clearance ◽  
Functional Endoscopic Sinus Surgery ◽  
Sinus Surgery ◽  
Control Group ◽  
Ostiomeatal Complex ◽  
The Status ◽  
Sinus Ostium ◽  
Sinus Mucosa

Functional endoscopic sinus surgery concentrates primarily on the removal of ostiomeatal complex disease. When required, maxillary sinus ostioplasty is performed. However, surgical widening of a sinus ostium is contrary to common precepts. A study therefore was performed to reevaluate the effects of antrostomies and of intrasinus mucosal removal. Widening of the natural ostium, a separate antrostomy at some distance from the ostium, or radical mucosal removal was performed on 30 rabbits. Fifteen sinuses were used as controls. After 6 to 8 weeks the status of the sinus mucosa and mucociliary clearance was studied. The study confirmed that mucociliary clearance continued toward the natural ostium following inferior antrostomy. Following widening of the natural ostium, mucociliary clearance through the ostium redeveloped in 11 of 18 sinuses but was typically imperfect. There were no cases of ostial closure; however, the incidence of infection was significantly higher in all three experimental groups than in the control group.

Maxillary Sinus Ostioplasty versus Nasal-Antral Window in Maxillary Sinusitis: An Experimental Study

1996 ◽  
Vol 10 (6) ◽  
pp. 357-364 ◽  
Author(s):  
Mohammed H. Hassab ◽  
David W. Kennedy
Keyword(s):  
Maxillary Sinus ◽  
Animal Studies ◽  
Clinical Observation ◽  
Mucociliary Clearance ◽  
Maxillary Sinusitis ◽  
Middle Turbinate ◽  
Short Term ◽  
Middle Meatal Antrostomy ◽  
Sinus Ostium ◽  
New Zealand Rabbits

The performance of a maxillary antrostomy through the natural ostium of the maxillary sinus has been debated in the literature over the years. However, much of the argument against middle meatal antrostomy has been based primarily upon animal studies in which there was a patent maxillary sinus ostium. A detailed study was therefore undertaken to evaluate the effects of both ostioplasty and nasal antral window in an animal model with maxillary sinus ostial obstruction. Twenty Pasteurella-free White New Zealand Rabbits underwent unilateral ostial occlusion with Histoacryl®. The sinuses were reexplored after 2 weeks. In 10 sinuses a nasal antral window was performed. In the remaining 10, two variations of ostioplasty were performed. Half underwent circumferential widening by removal of the root of the middle turbinate and half underwent a limited antero-inferior widening of the ostium. The opposite maxillary sinus in each animal was kept as a control. A second exploration was performed at 6 weeks. Significant evidence of inflammation was not found in any of the sinuses with limited widening of the maxillary sinus ostium, but was present in 10% of the sinuses with nasal antral windows and 40% of the sinuses with circumferential ostial widening. Normal mucociliary clearance was present in 80% of the sinuses with limited ostioplasty, 60% of the sinuses with circumferential ostioplasty, and 40% of those with nasal antral window. These findings support the clinical observation that limited widening of the natural ostium of the maxillary sinus is an effective treatment for inflammation secondary to ostial obstruction. However, they also suggest that circumferential widening of the maxillary sinus ostium, at least in the short term, predisposes to infection.

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