Anatomical Variations in Osteomeatal Complex among Patients undergoing Functional Endoscopic Sinus Surgery

2016 ◽  
Vol 9 (1) ◽  
pp. 28-32 ◽  
Author(s):  
V Narendrakumar ◽  
V Subramanian

ABSTRACT Aims To study the anatomical variations of osteomeatal complex and the importance of preoperative computed tomography (CT) in patients with chronic sinusitis undergoing functional endoscopic sinus surgery. We studied the different variations and their frequency of occurrence. Materials and methods A total of 100 patients undergoing endoscopic sinus surgery were studied by nasal endoscopy, CT scanning, and at the time of definitive surgery, variations were recorded. Results The frequency of occurrence of sinonasal anatomical variations was septal deviation in 76%, agger nasi cells in 71%, concha bullosa in 61%, medialized uncinate process in 48%, prominent bulla ethmoidalis in 41%, paradoxical middle turbinate in 33%, accessory maxillary ostium in 28%, frontal cell in 22%, intumescentia septi nasi anterior in 21%, lateralized uncinate in 15%, pneumatized uncinate process in 4%, Haller cells in 12%, and Onodi cells in 8%. Conclusion The high incidence of variations emphasizes the need for proper preoperative assessment for safe and effective endoscopic sinus surgery. How to cite this article Narendrakumar V, Subramanian V. Anatomical Variations in Osteomeatal Complex among Patients undergoing Functional Endoscopic Sinus Surgery. Clin Rhinol An Int J 2016;9(1):28-32.

Author(s):  
Armando T. Isla ◽  
Josefino G. Hernandez

Considerable attention has been directed toward analysis of paranasal sinus anatomy through coronal plane computerized tomographic (CT) imaging in this age of functional endoscopic sinus surgery.  Recently, it has become apparent that anatomic variations are also evident on CT analysis of patients.  Subtle anatomic features can now be imaged through CT, with a level of clarity previously not afforded by standard sinus radiographs.1         The key to a successful endoscopic sinus surgery is the proper identification of landmarks, and intelligent decision-making should there be any doubts as to what structure lies ahead.  The middle turbinate is the main landmark in the region and should be preserved if possible.  Attention to the limits of the middle turbinate landmark is one of the keys to uncomplicated surgery.2   The presence of a retroverted uncinate process, wherein the uncinate process ( rather than the middle turbinate) is the first bone to encountered, can be misleading to the rhinologic surgeon and lead to inadequate surgery.  Familiarity with anatomic variations such as the retroverted uncinate process should increase the safety and effectiveness of functional endoscopic sinus surgery.  


2005 ◽  
Vol 132 (2) ◽  
pp. 221-225 ◽  
Author(s):  
Ting-Kuang Chao

OBJECTIVE: Some uncommon anatomic variations would be encountered with the increasing number of patients with chronic paranasal sinusitis who have undergone functional endoscopic sinus surgery. The correct identification and proper treatment for these variations are important. STUDY DESIGN AND SETTING: A retrospective study of serial computed tomography scan images was conducted in 100 patients collected randomly. Uncommon anatomic variations were recorded and clinical features were analyzed. RESULTS: Five (5%) cases with uncommon anatomic variations were found. These variations included bilateral pneumatization of uncinate process (1%), large uncinate process mimics the middle turbinate (1%), nontraumatic protrusion of orbital contents through dehiscence of lamina papyracea (1%), and nasal septal pneumatization (2%). Two of these 5 cases caused some modifications of routine functional endoscopic sinus surgery procedures and another 2 variants commanded further caution during routine uncinectomy. CONCLUSION AND SIGNIFICANCE: Uncommon anatomic variations, though unusual, are not rare in chronic paranasal sinusitis patients. Procedures should be tailored for most of these special conditions.


Author(s):  
Kranti Gouripur ◽  
Udaya Kumar M. ◽  
Anand B. Janagond ◽  
S. Elangovan ◽  
V. Srinivasa

<p class="abstract"><strong>Background:</strong> Variations in sinonasal anatomy of adults<strong> </strong>are common and vary among different populations. Their role in development of pathological conditions such as sinusitis, epistaxis, etc is debated. Having clear picture of sinonasal anatomy of a person is essential in avoidance of complications during surgery. This study was done<strong> </strong>to<strong> </strong>analyze<strong> </strong>sinonasal anatomy in adults from Karaikal region having chronic sinusitis by nasal endoscopy and CT scan imaging.</p><p class="abstract"><strong>Methods:</strong> A total of 50 patients undergoing endoscopic sinus surgery were studied by preoperative nasal endoscopy, CT scanning and endoscopy at the time of definitive surgery and variations recorded and analyzed.  </p><p class="abstract"><strong>Results:</strong> The incidence of the sinonasal anatomical variations in CT scan study were – discharge in the frontal sinus (100%), agger nasi cells (96%), deviated nasal septum (70%), anterior ethmoidal cells (86%), posterior ethmoidal cells (58%), sinus lateralis (52%), frontal cells (50%), discharge in sphenoid sinus (50%), pneumatised superior turbinate (46%), INSA (34%), prominent bulla ethmoidalis (30%), supra orbital cells (26%), pneumatised septum(16%), medialised uncinate process (16%), paradoxical middle turbinate (16%), Haller cells (14%), supreme turbinate (14%), pneumatised inferior turbinate (12%), frontal recess obliteration (12%), absent pneumatisation of frontal sinus (12%), pneumatised middle turbinate (10%), Onodi cells (6%), pneumatised uncinate process (2%), maxillary sinus septation (2%).</p><p><strong>Conclusions:</strong> The high incidence of variations emphasises the need for proper preoperative assessment for safe and effective endoscopic sinus surgery. </p>


1996 ◽  
Vol 75 (1) ◽  
pp. 42-44 ◽  
Author(s):  
John H. Krouse ◽  
Dewey A. Christmas

The present paper compares the use of the microdebrider as a form of powered instrumentation for endoscopic sinus surgery with traditional endoscopic surgical techniques. A group of 250 patients undergoing surgery with the microdebrider was compared with a group of 225 patients undergoing traditional procedures in order to evaluate their postoperative recovery, healing, and incidence of complications. The use of the microdebrider demonstrated faster healing with less crusting than standard techniques, as well as decreased bleeding, synechia formation, lateralization of the middle turbinate, and ostial reocclusion. The microdebrider offers excellent surgical results with fewer complications and faster healing than traditional techniques in functional endoscopic sinus surgery.


1993 ◽  
Vol 7 (1) ◽  
pp. 31-35 ◽  
Author(s):  
William E. Davis ◽  
Giulio J. Barbero ◽  
William R. LaMear ◽  
Jerry W. Templer ◽  
Peter Konig

Six patients between the ages of 6 and 22 years old with cystic fibrosis were found to have mucoceles of the paranasal sinuses. Four were male and two were female. They experienced nasal obstruction, purulent rhinorrhea, and anosmia, but none had fever or pain. Nasal endoscopy and coronal computerized tomography scans revealed the lateral nasal wall to be displaced medially against the septum. Functional endoscopic sinus surgery revealed large cystic spaces filled with thick yellow-green mucus. Postoperatively most patients are able to smell and breathe through their noses. The mucocele probably begins as an obstructed anterior ethmoid cell, which then enlarges and obstructs the osteomeatal complex, which further impairs drainage of the other sinuses into this area.


2021 ◽  
Vol 10 (38) ◽  
pp. 3351-3355
Author(s):  
Ganesh Manohar Vihapure ◽  
Akshay Sorade ◽  
Kaenat Ahmed ◽  
Lakshmi Sravya Yarlagadda ◽  
Khaleel Basha Munnaru

BACKGROUND The paranasal sinuses (PNS) have various anatomical difference. Computed tomography (CT) is an excellent means of providing anatomical information of this region, disease extent, assisting endoscopic evaluation and guiding treatment. Functional endoscopic sinus surgery (FESS) has become an increasingly popular treatment for chronic sinus diseases. CT of the paranasal sinuses has become a roadmap for FESS. The present study focuses on the assessment of the efficacy, safety and benefits of functional endoscopic sinus surgery in cases of maxillary pathologies and also study the anatomical variations in maxillary sinus in computed tomography and its usefulness in planning and management of chronic sinonasal diseases. METHODS It was a prospective study and a total of 80 patients were included in this study from July 2019 to June 2020 in the Otolaryngology Department, KIMS, Karad. Standard surgical steps were applied in each case according to the extent of disease. All patients underwent standard post-operative care. All findings were recorded and studied. RESULTS Total number of patients were 80. Of which, 31 (38.75 %) patients were operated for ethmoidal polyp, 24 (30 %) for chronic rhinosinusitis, 10 (12.5 %) for antrochoanal polyp, 9 (11.25 %) for rhinosporidiosis and 6 (7.5 %) for inverted papilloma. Postoperative complications were periorbital echymoses (13 %), synechiae (2.5 %), epiphora (2.5 %), infection (2.5 %), hemorrhage (4 %). Complete relief of symptoms were noted in 81.67 % cases. CONCLUSIONS Successful outcome and patient satisfaction post treatment can be obtained by careful evaluation and patient selection by history, examination and most importantly, proper imaging of the sinuses. KEY WORDS Maxillary Sinus, Sinusitis, Nasal Polyp, Paranasal Sinus Disease, Computed Tomography (CT)


Author(s):  
Niranjan Sahu ◽  
Satya Sundar G. Mohapatra ◽  
Siba N. Rath ◽  
Rabindra N. Padhy

Background: Recurrent acute rhinosinusitis (RARS), a low form chronic rhinosinusitis is frequently under evaluated. The significance of sinonasal anatomical variants of osteomeatal complex (OMC) and spheno-ethmoidal (SE) recess regions in patients of RARS is assessed.Methods: Retrospective analysis of coronal sinonasal computed tomography images of 120 RARS patients presented with sinonasal anatomical variants during November 2013 to October 2016 was carried out. Patients with acute and expansile sinonasal lesions are excluded.Results: Sinonasal anatomical variants in the regions of OMC and SE recess are responsible for obstruction of normal mucociliary drainage of corresponding paranasal sinuses in presence of inflammation predisposing to RARS. Anatomical variants of nasal septum were, deviated nasal septum (DNS) in 86 (72%) and septal spur in 58 (48%) patients. Anatomical variants in OMC region were, pneumatized middle turbinate (concha bullosa) in 50 (48%), paradoxical middle turbinate in 38 (28%), giant ethmoid bulla in 35 (32%), agger nasi cell in 29 (38%), Haller cell in 23 (15%), pneumatised uncinate process in 20 (18%), medialized uncinate process in 18 (22%) and septated maxillary sinus in 5 (4%) patients. Anatomical variants in SE recess were superior concha bullosa in 14 (12%) and septal bullosa in 11 (9%) patients.Conclusions: OMC pattern of recurrent rhinosinusitis is often prevalent in patients of RARS due to abundance of anatomical variants in the OMC region. DNS or ethmoid bulla when gets associated with concha bullosa increased the incidence of RARS. Present analysis would help surgeons to evaluate RARS patients for selective endoscopic sinus surgery.


Author(s):  
Pragadeeswaran Kumarasekaran ◽  
Rajprakash Dharmapuri Yadhava krishnan ◽  
Gurumani Sriraman

<p class="abstract"><strong>Background:</strong> <span lang="EN-IN">C</span><span lang="EN-IN">hronic sinusitis is repeated bouts of acute infection or persistent inflammation of the sinuses. The range of anatomic variants that can interfere with the mucociliary drainage of osteomeatal complex including concha bullosa, deviated nasal septum, uncinate process variations, ethmoid bulla, paradoxical middle turbinate, agger nasi and Haller cells. This is also important in surgeon point of view to know about detail knowledge of lateral nasal wall, paranasal sinuses, surrounding vital structures and anatomical variation. </span></p><p class="abstract"><strong>Methods:</strong> <span lang="EN-IN">Observational case series study in which 90 cases of chronic rhinosinusitis patients attending the ENT outpatient department from November-2015 to November-2016 in Shri Sathya Sai Medical college and Hospital, who had chronic sinusitis for more than three months duration not responding to the medical line treatment and who are willing to undergo functional endoscopic sinus surgery are studied and statistically analysed.  </span></p><p class="abstract"><strong>Results:</strong> <span lang="EN-IN">In our study we found anatomical variation in 93% of chronic sinusitis patients. In our study it was observed that 52% of patients with two anatomical variation, 41% patients presented with single anatomical variation and 7% patients presented with no anatomical variation. In our study deviated nasal septum was the most common anatomical variant noted followed by unilateral concha bullosa, medialized uncinate process, paradoxical middle turbinate, haller cell and agger nasi. </span></p><p class="abstract"><strong>Conclusions:</strong> <span lang="EN-IN">In our study it was concluded that presence of anatomical variations is common in patients with chronic sinusitis. Presence of more than one anatomical variations significantly contributes to disease process.<strong> </strong>Deviated nasal septum is the most common anatomical variation in our study followed by concha bullosa, medialized uncinate process.</span></p>


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