scholarly journals Evaluation of Computed Tomography Findings in Revision Endoscopic Sinus Surgery

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Levent Aydemir ◽  
Cömert Şen ◽  
Bayram Şahin ◽  
Berkay Çaytemel ◽  
Ayhan Kars ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Endoscopic Sinus Surgery ◽  
Sinus Surgery

scholarly journals Endoscopic Visualization of the True Maxillary Ostium Following Uncinectomy

2019 ◽  
Vol 99 (6) ◽  
pp. 384-387 ◽  
Author(s):  
Omar H. Ahmed ◽  
Marissa P. Lafer ◽  
Ilana Bandler ◽  
Elcin Zan ◽  
Binhuan Wang ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Retrospective Study ◽  
Chronic Rhinosinusitis ◽  
Study Design ◽  
Endoscopic Sinus Surgery ◽  
Nasolacrimal Duct ◽  
Sinus Surgery ◽  
Academic Hospital ◽  
Preoperative Ct

Objectives: To examine the frequency in which angled endoscopes are necessary to visualize the true maxillary ostium (TMO) following uncinectomy and prior to maxillary antrostomy. Additionally, to identify preoperative computed tomography (CT) measures that predict need for an angled endoscope to visualize the TMO. Study Design: Retrospective study. Setting: Tertiary academic hospital. Patients and Methods: Patients who underwent endoscopic sinus surgery (ESS) between December of 2017 and August of 2018 were retrospectively identified. Cases were reviewed if they were primary ESS cases for chronic rhinosinusitis without polyposis and if they were at least 18 years of age. Results: Sixty-three maxillary antrostomies were reviewed (82.5% were from bilateral cases). Thirty-five cases (55.6%) required an angled endoscope in order to visualize the TMO. Of the preoperative CT measures examined, a smaller sphenoid keel-caudal septum-nasolacrimal duct (SK-CS-NL) angle was significantly associated with need for an angled endoscope intraoperatively to visualize the TMO (17.1° SD ± 3.2 vs 15.0° SD ± 2.9; P = .010). Conclusion: Angled endoscopes are likely required in the majority of maxillary antrostomies to visualize the TMO. This is important to recognize in order to prevent iatrogenic recirculation. The SK-CS-NL angle may help to identify cases preoperatively which require an angled endoscope to identify the TMO during surgery.

scholarly journals Correlations and Comparison between Repeat Computed Tomography Scores, Endoscopy Scores and Symptomatic Improvement before and after Endoscopic Sinus Surgery: A Pilot Study

2013 ◽  
Vol 6 (1) ◽  
pp. 32-40 ◽  
Author(s):  
NV Deepthi ◽  
Indudharan R Menon
Keyword(s):  
Computed Tomography ◽  
Pilot Study ◽  
Endoscopic Sinus Surgery ◽  
Medical Center ◽  
Tertiary Care ◽  
Objective Evaluation ◽  
Symptomatic Improvement ◽  
Sinus Surgery ◽  
Tertiary Care Medical Center ◽  
Before And After

ABSTRACT Background Chronic rhinosinusitis (CRS) is diagnosed on the basis of symptoms, nasal endoscopic findings and computed tomography of the paranasal sinuses (CT PNS). Where indicated, functional endoscopic sinus surgery (FESS) is the surgical treatment. Objective To determine correlations between subjective symptom severity and objective endoscopic and radiologic findings in CRS and to compare these before and after FESS. Materials and methods Analysis of prospectively collected data of 20 patients undergoing FESS at a tertiary care medical center followed up for a minimum period of 6 months after surgery. RSI questionnaire-based symptom score, Lund-Mackay system-based endoscopic and CT finding scores were recorded preoperatively and at 8 weeks and 6 months postoperatively. Results Significant positive correlation was noted between the three parameters before surgery, especially endoscopic and radiological scores (r = 0.94 in the latter, p < 0.01 in all three). Postoperative improvement was statistically significant for all three parameters, even at the 6 months stage (p < 0.001). Postoperative correlations reduced significantly, especially between endoscopic and radiological scores. Conclusion This study showed the relevance of objective evaluation of routine parameters of CRS, preoperatively. It also confirmed the usefulness of FESS in indicated cases, in terms of statistical improvement of these parameters. However, repeat CT scans and the methods of scoring used by us may not be equally applicable in the long-term postoperative scenario. How to cite this article Deepthi NV, Menon UK, Menon IR. Correlations and Comparison between Repeat Computed Tomography Scores, Endoscopy Scores and Symptomatic Improvement before and after Endoscopic Sinus Surgery: A Pilot Study. Clin Rhinol An Int J 2013;6(1):32-40.

Sphenoid sinus mucocele: 10 cases and literature review

2009 ◽  
Vol 124 (1) ◽  
pp. 44-47 ◽  
Author(s):  
S R Soon ◽  
C M Lim ◽  
H Singh ◽  
D S Sethi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Endoscopic Sinus Surgery ◽  
Sphenoid Sinus ◽  
Sinus Surgery ◽  
Nasal Discharge ◽  
Resonance Imaging ◽  
Presenting Symptoms ◽  
Singapore General Hospital

AbstractIntroduction:Sphenoid sinus mucoceles represent only 1–2 per cent of all paranasal sinus mucoceles. Patients may present with a myriad of symptoms. Pre-operative investigations include nasoendoscopy, computed tomography and/or magnetic resonance imaging. Treatment is by endoscopic sinus surgery.Methodology:A retrospective review of the archives of the Singapore General Hospital otolaryngology department (1999–2006) identified 10 cases of sphenoid sinus mucocele. Patient demographics, presenting symptoms, investigations and treatment were evaluated.Results:The 10 patients identified (three women and seven men) had a mean age of 54.5 years (range 24–70 years). Thirty per cent of patients had a history of nasopharyngeal carcinoma treated with radiotherapy. Presenting symptoms, in order of decreasing frequency, were: ocular symptoms (50 per cent), headaches (30 per cent), nasal discharge (30 per cent) and facial pain (10 per cent). All patients underwent pre-operative computed tomography or magnetic resonance imaging. Twenty per cent of patients had evidence of intracranial involvement on imaging. All patients underwent uncomplicated transnasal sphenoidotomy and drainage of the mucocele. There was no clinical or radiological evidence of recurrence at a mean follow up of 29 months (range 4–90 months).Conclusion:Sphenoid sinus mucocele is a rare condition. In this study, radiation to the head and neck appeared to be a predisposing factor, and eye symptoms were the commonest presentation. Endoscopic sinus surgery is a safe and effective treatment modality.

scholarly journals A 16-Year Study on Incidence and Progression of Diseased Sphenoethmoidal (Onodi) Cell

2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Ethan I. Huang ◽  
Chia-Ling Kuo ◽  
Li-Wen Lee
Keyword(s):  
Computed Tomography ◽  
Decision Making ◽  
Optic Nerve ◽  
Endoscopic Sinus Surgery ◽  
Visual Loss ◽  
Sinus Surgery ◽  
Acute Visual Loss ◽  
Computed Tomography Images ◽  
Onodi Cell

Traumatic operative injury of the optic nerve in an endoscopic sinus surgery may cause immediate or delayed blindness. It should be cautioned when operating in a sphenoethmoidal cell, or known as Onodi cell, with contact or bulge of the optic canal. It remains unclear how frequent progression to visual loss occurs and how long it progresses to visual loss because of a diseased sphenoethmoidal cell. Research to discuss these questions is expected to help decision making to treat diseased sphenoethmoidal cells. From July 2001 to June 2017, 216 patients received conservative endoscopic sinus surgery without opening a diseased sphenoethmoidal cell. We used their computed tomography images of paranasal sinuses to identify diseased sphenoethmoidal cells that could be associated with progression to visual loss. Among the 216 patients, 52.3% had at least one sphenoethmoidal cell, and 14.8% developed at least one diseased sphenoethmoidal cell. One patient developed acute visual loss 4412 days after the first computed tomography. Our results show that over half of the patients have a sphenoethmoidal cell but suggest a rare incidence of a diseased sphenoethmoidal cell progressing to visual loss during the follow-up period.

Don't sue the surgeon: remineralisation of the skull base or a defect that never existed?

2011 ◽  
Vol 125 (12) ◽  
pp. 1294-1297
Author(s):  
C Hopkins ◽  
S Dhillon ◽  
G Rogers ◽  
D Roberts
Keyword(s):  
Computed Tomography ◽  
Skull Base ◽  
Endoscopic Sinus Surgery ◽  
Semicircular Canals ◽  
Time Frame ◽  
Sinus Surgery ◽  
Operative Exploration ◽  
Intracranial Complications ◽  
Operative Findings ◽  
The Right

AbstractIntroduction:Intracranial complications are recognised as rare, but serious, sequelae of endoscopic sinus surgery.Case report:A 56-year-old woman was referred after developing meningitis following elective functional endoscopic sinus surgery. Computed tomography demonstrated a significant defect of the skull base in the right posterior ethmoid, clearly visible on both coronal and sagittal sections. Operative exploration demonstrated the skull base to be intact in the posterior ethmoid area identified on the scan, and the overlying mucosa appeared undisturbed. Scans were reviewed in the light of operative findings; coronal and sagittal images were found to be reconstructions. Directly acquired coronal computed tomography, undertaken three weeks after surgery, demonstrated a complete bony plate in the right posterior ethmoid at the site previously identified as dehiscent.Discussion and conclusion:We speculate that the posterior ethmoid defect was actually an artefact of reconstruction. We cannot exclude the alternative possibility of remineralisation, but given the time frame this seems unlikely. This case highlights the need for caution when interpreting reconstructed images of the thin bony plates of the skull base and lamina papyracea, as regards both clinical significance and medicolegal reporting. While virtual defects have been reported in the superior semicircular canals as a result of reconstructed images, we believe this to be the first reported case demonstrating a similar problem in the anterior skull base.

Bony nasolacrimal duct dehiscence in functional endoscopic sinus surgery: radiological study and discussion of surgical implications

2015 ◽  
Vol 129 (S3) ◽  
pp. S35-S40 ◽  
Author(s):  
M J Ali ◽  
J Murphy ◽  
P J Wormald ◽  
A J Psaltis
Keyword(s):  
Computed Tomography ◽  
Endoscopic Sinus Surgery ◽  
Case Series ◽  
Nasolacrimal Duct ◽  
Functional Endoscopic Sinus Surgery ◽  
Sinus Surgery ◽  
Retrospective Case ◽  
Computed Tomography Images ◽  
Before And After ◽  
Surgically Induced

AbstractObjectives:To analyse the radiological features of the bony nasolacrimal duct before and after functional endoscopic sinus surgery, and document the incidence of surgically induced dehiscence.Methods:A retrospective case series analysis was conducted of 63 consecutive patients who underwent uncinectomy as a part of 118 functional endoscopic sinus surgical procedures. All patients underwent pre- and post-operative computed tomography scans. Axial computed tomography images at the level of maxillary sinus were evaluated for the presence of bony nasolacrimal duct dehiscence, osteitis and completeness of uncinectomy.Results:The rate of nasolacrimal duct dehiscence prior to surgery was 6.8 per cent (8 out of 118 cases). Nasolacrimal duct dehiscence as a consequence of surgery was observed in 3.3 per cent of cases (4 out of 118), with a further 4.2 per cent (5 out of 118) showing post-operative reactive bony change of the nasolacrimal duct in the absence of dehiscence.Conclusion:The incidence of nasolacrimal duct injury observed was much lower than that previously reported in the literature.

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