scholarly journals Expanded Endoscopic Endonasal Treatment of Primary Intracranial Tumors within the Paranasal Sinuses

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
Zarina S. Ali ◽  
Shih-Shan Lang ◽  
Nithin D. Adappa ◽  
Ariana Barkley ◽  
James N. Palmer ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Paranasal Sinuses ◽  
Case Series ◽  
Intracranial Tumors ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Effective Treatment Option ◽  
Endoscopic Endonasal ◽  
Number Of Patients

Objective. Meningiomas and schwannomas represent a subset of primary intracranial tumors that are rarely identified exclusively in the paranasal sinuses. Here, we describe our experience with minimally invasive endoscopic endonasal approaches for the treatment of these tumors. Methods. We retrospectively reviewed the clinical, surgical, and radiographic characteristics of adults with pathologically confirmed sinonasal meningiomas and schwannomas located within the paranasal sinuses that were resected via an expanded endoscopic endonasal approach. Results. Five patients (1 male, 4 females) underwent an endoscopic endonasal approach for resection of sinonasal tumor. Clinical symptomatology most commonly included nasal obstruction, in addition to headache, jaw pain, anosmia, and chronic rhinosinusitis. Tumors were located exclusively within the sinonasal cavity and were on average 2.2 cm (range 1.4–3.8 cm). Pathology revealed 2 cases of meningioma and 3 cases of schwannoma. No evidence of tumor recurrence occurred over average followup of 1.5 years (range 0.11–3.9 years). Conclusion. Our case series suggests that an expanded endoscopic endonasal approach with a combined neurosurgical-otorhinolaryngologic team for the resection of sinonasal meningiomas and schwannomas offers an effective treatment option. Further studies that include a larger number of patients over a longer follow-up period are required to compare outcomes between minimally invasive and open approaches.

scholarly journals Excision of Greater Superficial Petrosal Nerve Schwannoma Via a Pure Endoscopic Endonasal Approach

2021 ◽  
pp. 014556132110263
Author(s):  
Zhenlin Wang ◽  
Siyuan Zhang ◽  
Yan Qi ◽  
Lianjie Cao ◽  
Pu Li ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Clinical Features ◽  
Middle Cranial Fossa ◽  
Nerve Sheath Tumor ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Greater Superficial Petrosal Nerve ◽  
Clinical Records

Greater superficial petrosal nerve (GSPN) schwannomas are an exceedingly rare nerve sheath tumor. The current literature search was conducted using Medline and Embase database by key search terms. Only 31 cases have been reported in the literature so far. Facial palsy, hearing loss, and xerophthalmia accounted for 48.4% (15), 41.9% (13), and 29% (9) of all cases, respectively. The middle cranial fossa approach was used in all previous reports. A retrospective review of 2 GSPN schwannomas patients treated by endoscopic endonasal approach (EEA) in our center was collected. Clinical records, including clinical features, pre- and postoperative images, surgery, and follow-up information, were reviewed. In all cases, clinical features including facial numbness and headache were found, with tinnitus in case 1, hearing loss, xerophthalmia in case 2. Imaging studies showed a solid mass that originated in the anterior of the petrous bone. Two patients were treated by EEA. Furthermore, no recurrence was found during the follow-up period (15-29 months) in both of the 2 cases after the operation. Complete resection of GSPN schwannomas can be achieved via the pure EEA. Endoscopic endonasal approach for radical removal of tumors is safe and feasible.

Endoscopic Endonasal Approach to the Pterygopalatine Fossa: Anatomic Study

Neurosurgery ◽  
2003 ◽  
Vol 52 (2) ◽  
pp. 374-380 ◽  
Author(s):  
Alessandra Alfieri ◽  
Hae-Dong Jho ◽  
Raffaele Schettino ◽  
Manfred Tschabitscher
Keyword(s):  
Minimally Invasive ◽  
Infratemporal Fossa ◽  
Lateral View ◽  
Pterygopalatine Fossa ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Anatomic Study ◽  
Endoscopic Endonasal ◽  
Arteries And Veins ◽  
Anatomic Region

Abstract OBJECTIVE The pterygopalatine fossa is a relatively small anatomic region. Because of its rich vasculonervous contents and its connections with several intracranial and extracranial compartments, it is of particular surgical interest. Because of its deep localization and despite its small size, however, it can require extensive anatomic approaches, especially for invasive cranial base lesions. We performed a cadaveric study through a minimally invasive endoscopic endonasal approach to the pterygopalatine fossa. METHODS We studied 16 pterygopalatine fossae in eight adult cadaveric heads in which the arteries and veins were injected with latex. For visualization, we used rod-lens endoscopes, 4 mm in diameter and 18 cm in length, with 0-, 30-, 45-, and 70-degree lenses. An endonasal middle meatal transpalatine approach, an endonasal middle meatal transantral approach, and an endonasal inferior turbinectomy transantral approach were used. RESULTS The middle meatal transpalatine approach allows for medial exposure of the pterygopalatine fossa contents, the middle meatal transantral approach allows a lateral view, and the inferior turbinectomy transantral approach allows the widest view and room for surgical maneuvering in the medial and lateral compartments of the pterygopalatine fossa and the infratemporal fossa. CONCLUSION Our anatomic study shows that this approach can be considered a valid minimally invasive option to approach pterygopalatine fossa lesions.

scholarly journals Management and Surveillance of Frontal Sinus Violation following Craniotomy

2019 ◽  
Vol 81 (01) ◽  
pp. 001-007 ◽  
Author(s):  
Alexander Farag ◽  
Marc R. Rosen ◽  
Natalie Ziegler ◽  
Ryan A. Rimmer ◽  
James J. Evans ◽  
...  
Keyword(s):  
Literature Review ◽  
Frontal Sinus ◽  
Medical Center ◽  
Academic Medical Center ◽  
Case Series ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Incomplete Removal ◽  
Intraoperative Management

Objectives In the setting of craniotomy, complications after traversing the frontal sinus can lead to mucocele formation and frontal sinusitis. We review the etiology of frontal sinus violation, timeline to mucocele development, intraoperative management of the violated sinus, and treatment of frontal mucoceles. Design Case series in conjunction with a literature review. Participants A total of 35 patients were included in this meta-analysis. Nine of these patients were treated at a tertiary academic medical center between 2005 and 2014. The remaining patients were identified through a literature review for which 2,763 articles were identified, of which 4 articles met inclusion criteria. Main Outcomes Measures Etiology of frontal violation, timeline to mucocele development, and method of management. Results The overall interval from initial frontal sinus violation until mucocele identification was 14.5 years, with a range of 3 months to 36 years. The most common cause of mucocele formation was obstruction of the frontal recess with incomplete removal of the frontal sinus mucosa. The majority of patients were successfully managed with an endoscopic endonasal approach. Conclusions Violation of the frontal sinus during craniotomy can result in mucocele formation as an early or late sequela. Image guidance may help avoid unnecessary frontal sinus violation. Mucoceles may develop decades after the initial frontal sinus violation, and long-term follow-up with imaging is recommended. While the endoscopic endonasal approach is usually the preferred method to treat these lesions, it may be necessary to perform obliteration or cranialization in unique situations.

Endoscopic Endonasal Approach for Craniopharyngiomas with Intraventricular Extension: Case Series, Long-Term Outcomes, and Review

2020 ◽  
Vol 144 ◽  
pp. e447-e459
Author(s):  
Hanna Algattas ◽  
Pradeep Setty ◽  
Ezequiel Goldschmidt ◽  
Eric W. Wang ◽  
Elizabeth C. Tyler-Kabara ◽  
...  
Keyword(s):  
Case Series ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Long Term Outcomes ◽  
Endoscopic Endonasal

scholarly journals Machine learning–based prediction of outcomes of the endoscopic endonasal approach in Cushing disease: is the future coming?

2020 ◽  
Vol 48 (6) ◽  
pp. E5
Author(s):  
Matteo Zoli ◽  
Victor E. Staartjes ◽  
Federica Guaraldi ◽  
Filippo Friso ◽  
Arianna Rustici ◽  
...  
Keyword(s):  
Machine Learning ◽  
Area Under The Curve ◽  
Complex Data ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Cushing Disease ◽  
Endoscopic Endonasal ◽  
Internal Validation

OBJECTIVEMachine learning (ML) is an innovative method to analyze large and complex data sets. The aim of this study was to evaluate the use of ML to identify predictors of early postsurgical and long-term outcomes in patients treated for Cushing disease (CD).METHODSAll consecutive patients in our center who underwent surgery for CD through the endoscopic endonasal approach were retrospectively reviewed. Study endpoints were gross-tumor removal (GTR), postsurgical remission, and long-term control of disease. Several demographic, radiological, and histological factors were assessed as potential predictors. For ML-based modeling, data were randomly divided into 2 sets with an 80% to 20% ratio for bootstrapped training and testing, respectively. Several algorithms were tested and tuned for the area under the curve (AUC).RESULTSThe study included 151 patients. GTR was achieved in 137 patients (91%), and postsurgical hypersecretion remission was achieved in 133 patients (88%). At last follow-up, 116 patients (77%) were still in remission after surgery and in 21 patients (14%), CD was controlled with complementary treatment (overall, of 131 cases, 87% were under control at follow-up). At internal validation, the endpoints were predicted with AUCs of 0.81–1.00, accuracy of 81%–100%, and Brier scores of 0.035–0.151. Tumor size and invasiveness and histological confirmation of adrenocorticotropic hormone (ACTH)–secreting cells were the main predictors for the 3 endpoints of interest.CONCLUSIONSML algorithms were used to train and internally validate robust models for all the endpoints, giving accurate outcome predictions in CD cases. This analytical method seems promising for potentially improving future patient care and counseling; however, careful clinical interpretation of the results remains necessary before any clinical adoption of ML. Moreover, further studies and increased sample sizes are definitely required before the widespread adoption of ML to the study of CD.

Endoscopic Surgery of a Sinonasal Inverted Papilloma: Surgical Strategy, Follow-up, and Recurrence Rate

2017 ◽  
Vol 31 (1) ◽  
pp. 51-55 ◽  
Author(s):  
Xiao-Dan Jiang ◽  
Qing-Zhe Dong ◽  
Shen-Ling Li ◽  
Tian-Qiao Huang ◽  
Nian-Kai Zhang
Keyword(s):  
Recurrence Rate ◽  
Endoscopic Surgery ◽  
Inverted Papilloma ◽  
Surgical Strategy ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Sinonasal Inverted Papilloma ◽  
Significant Difference

Background Sinonasal inverted papilloma (SNIP) is noted for its high rate of recurrence and malignant transformation. Although many clinical studies have demonstrated the effectiveness of the endoscopic approach for SNIP, the surgical strategy has been the subject of much debate. Objective To evaluate the effectiveness of the endoscopic endonasal approach in SNIP. Methods A systematic review of patients with a diagnosis of SNIP and who had surgery at our institution from June 2005 to March 2013 was performed. All the patients who had postoperative follow-up for >2 years were enrolled. Each case was categorized into one of four stages as reported by Krouse. Demographic and tumor date, operative approach, complications, and recurrence rates were collected. Results A total of 125 patients were included in this study. There were 17 patients in stage 1, 40 in stage 2, 57 in stage 3, and 11 in stage 4. The overall recurrence rate was 8.0%. There was no significant difference in recurrence among the stages (all p > 0.05). Recurrence after endoscopic endonasal approach (8.4%) and a combined endoscopic and open exposure procedure (5.6%) were not significantly different (p > 0.05). The recurrence rate was significantly (p < 0.05) higher in patients with revision (15.6%) than in patients in the primary cases (3.8%). A common site of tumor origin was recorded to be from the maxillary sinus (40.2%). Twenty percent of recurrences were observed up to 5 years after surgery. Conclusion Endoscopic surgery may be preferred for treating SNIP. The elevated recurrence rate after revision emphasized the significance of the first surgery. We encourage a follow-up period of at least 5 years.

Anatomical Step-by-Step Endoscopic Endonasal Approach for Maxillary Nerve (V2) Rhizotomy and Case Series

2021 ◽  
Author(s):  
Michael O'Brien ◽  
Luciano Leonel ◽  
Tyler Kenning ◽  
Carlos Pinheiro-Neto ◽  
Maria Peris-Celda
Keyword(s):  
Case Series ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Maxillary Nerve

Modified endoscopic endonasal approach with a minimally invasive transoral approach-an adjunct to infrapetrous approaches

2018 ◽  
Vol 129 (2) ◽  
pp. 339-343 ◽  
Author(s):  
Guillermo Maza ◽  
Ali M. Moustafa Omar ◽  
Somasundram Subramaniam ◽  
Bradley A. Otto ◽  
Daniel M. Prevedello ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Transoral Approach ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal

The Endoscopic Endonasal Approach to the Lateral Recess of the Sphenoid Sinus Via the Pterygopalatine Fossa: Comparison Of Endoscopic and Radiological Landmarks

2006 ◽  
Vol 59 (suppl_4) ◽  
pp. ONS-237-ONS-243 ◽  
Author(s):  
Francesco Magro ◽  
Domenico Solari ◽  
Luigi M. Cavallo ◽  
Amir Samii ◽  
Paolo Cappabianca ◽  
...  
Keyword(s):  
Minimally Invasive ◽  
Sphenoid Sinus ◽  
Pterygopalatine Fossa ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Anatomic Landmarks ◽  
Endoscopic Endonasal ◽  
Invasive Approach ◽  
Lateral Recess ◽  
Radiological Images

Abstract OBJECTIVE: The endoscopic endonasal approach offers the opportunity to reach the ptery-gopalatine fossa, the lateral recess of the sphenoid sinus, and other areas of the cranial base through a minimally invasive approach. This study compares the anatomy of these areas when observed through an endoscopic endonasal view with the anatomy of the same regions as they appear in computed tomographic scans. The aim was to identify and correlate the corresponding anatomic structures, providing the surgeons with anatomic landmarks to guide them when operating in these areas through an endoscopic endonasal approach. METHODS: An anatomic dissection of six fixed cadaver heads was performed by an endoscopic endonasal approach. A step-by-step comparison of endoscopic and radiological images was made to identify the landmarks of the surgical field. RESULTS: The step-by-step comparison of endoscopic and radiological images acquired during the endoscopic endonasal approach to the lateral recess of the sphenoid sinus via the pterygopalatine fossa allowed the identification of all the relevant anatomic landmarks of the procedure. CONCLUSION: The endoscopic endonasal approach via the pterygopalatine fossa offers direct, minimally invasive access to the lateral recess of the sphenoid sinus, which can be monitored in each phase through consistent radiological imagery.

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