scholarly journals P.009 Cervicomedullary decompression through expanded endoscopic endonasal approach: our clinical experience

2017 ◽  
Vol 44 (S2) ◽  
pp. S16-S16
Author(s):  
F Alkherayf ◽  
C Agbi ◽  
S kilty ◽  
A Lamothe
Keyword(s):  
Cranial Nerves ◽  
Oral Intake ◽  
Velopharyngeal Insufficiency ◽  
Csf Leak ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Anterior Decompression ◽  
Endoscopic Endonasal ◽  
Invasive Approach ◽  
Cervicomedullary Junction

Background: patients with ventral cervical-medullary compression require anterior decompression of the cervicomedullary junction. Odontoid resection can be accomplished through expanded endoscopic approach especially in cases of irreducible basilar invagination in which the pathology is situated well above the palatine line. Methods: We are presenting our experience at the Ottawa Hospital (TOH) over the last seven years in patients who underwent expanded endoscopic endonasal decompression of their cervicomedullary junction. 16 patients underwent such procedure, those patients with preoperative cervical instability underwent posterior fusion for stabilization at the same surgical setting. Follow up ranged from 9 months to 5 years. Results: All patients had severe symptoms of myelopathy and some lower cranial nerves dysfunction. All patients were extubated after recovery from anesthesia and allowed oral intake next day. patients demonstrated improvement in their symptoms and none of them required tracheostomy. 12.5% experienced transient velopharyngeal insufficiency. one patient had CSF leak which was successfully treated with lumbar drain and one patient developed infection from the posterior cervical fusion and required debridement. All patients were eventually discharged home. Postoperative imaging demonstrated excellent decompression of the anterior cervicomedullary junction pathology. Conclusions: The expanded endoscopic endonasal approach for odontoidectomy should be considered as a minimally invasive approach for anterior decompression in selected cases

scholarly journals P.053 Expanded endoscopic endonasal approach for petrous apex lesions: our clinical experience and surgical techniques

2018 ◽  
Vol 45 (s2) ◽  
pp. S29-S29
Author(s):  
F Alkherayf ◽  
S Kilty
Keyword(s):  
Cranial Nerve ◽  
Surgical Techniques ◽  
Csf Leak ◽  
Petrous Apex ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Invasive Approach ◽  
Brain Retraction

Background: Traditionally petrous apex lesions surgical approach is associated with multiple complications including brain injury secondary to brain retraction. Expanded endoscopic endonasal trans-clival (EEET) can be used in selected patients with minimal complications. Methods: We are presenting our experience over the last three years in patients who underwent EEET resection of petrous apex lesions: 8 patients underwent such procedure. All patients underwent extensive workup including MRI and CTA to identify the relation of the carotid to the lesion. All surgeries were done with neuro-physiological monitoring. Intraoperative neuronavigation and endoscopic Doppler were used to identify the petrous segment of the internal carotid artery. Our follow up ranged from 6 months to 2.5 years. Results: All patients presented with severe neurologic symptoms related to either fifth cranial nerve, sixth cranial nerve or brain stem compression. Pathologies included chondrosarcoma, cholesterol granulomas and lymphangioma. All patients demonstrated improvement in their symptoms. None of our patients had intra-operative vascular injury. There was no post-operative CSF leak or infection. Postoperative imaging demonstrated excellent resection with no clear residual. Three patient required adjuvant stereotactic radiosurgery because of their underlying pathology. Conclusions: The expanded endoscopic endonasal approach for petrous apex lesion should be considered as a minimally invasive approach in selected cases.

Endoscopic Endonasal Approaches to the Clivus with No Violation of the Nasopharynx: Surgical Anatomy and Clinical Illustration

2021 ◽  
Author(s):  
Carlos D. Pinheiro-Neto ◽  
Laura Salgado-Lopez ◽  
Luciano C.P.C. Leonel ◽  
Serdar O. Aydin ◽  
Maria Peris-Celda
Keyword(s):  
Posterior Fossa ◽  
Cerebrospinal Fluid Leak ◽  
Craniovertebral Junction ◽  
Foramen Magnum ◽  
Surgical Anatomy ◽  
Csf Leak ◽  
Surgical Approaches ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal

Abstract Background Despite the use of vascularized intranasal flaps, endoscopic endonasal posterior fossa defects remain surgically challenging with high rates of postoperative cerebrospinal fluid leak. Objective The aim of the study is to describe a novel surgical technique that allows complete drilling of the clivus and exposure of the craniovertebral junction with preservation of the nasopharynx. Methods Two formalin-fixed latex-injected anatomical specimens were used to confirm feasibility of the technique. Two surgical approaches were used: sole endoscopic endonasal approach and transnasion approach. The sole endonasal approach was used in a patient with a petroclival meningioma. Results In both anatomical dissections, the inferior clivectomy with exposure of the foramen magnum was achieved with a sole endoscopic endonasal approach. The addition of the transnasion approach helped to complete drilling of the inferior border of the foramen magnum and exposure of the arch of C1. Conclusion This study shows the anatomical feasibility of total clivectomy and exposure of the craniovertebral junction with preservation of the nasopharynx. A more favorable anatomical posterior fossa defect for the reconstruction is achieved with this technique. Further clinical studies are needed to assess if this change would impact the postoperative CSF leak rate.

scholarly journals Endoscopic Endonasal Approach to Foramen Magnum Meningioma—Technical Note and Case Example

2018 ◽  
Vol 37 (04) ◽  
pp. 362-366
Author(s):  
Flavio Romero ◽  
Rodolfo Vieira ◽  
Bruno Ancheschi
Keyword(s):  
Cranial Nerves ◽  
Craniocervical Junction ◽  
Foramen Magnum ◽  
Technical Note ◽  
Open Approach ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Midline Approach ◽  
Lower Cranial Nerves

AbstractForamen magnum (FM) tumors represent one of the most complex cases for the neurosurgeon, due to their location in a very anatomically complex region surrounded by the brainstem and the lower cranial nerves, by bony elements of the craniocervical junction, and by the vertebrobasilar vessels. Currently, the open approach of choice is a lateral extension of the posterior midline approach including far lateral, and extreme lateral routes. However, the transoraltranspharyngeal approach remains the treatment of choice in cases of diseases affecting the craniocervical junction. For very selective cases, the endoscopic endonasal route to this region is another option. We present a case of a ventral FM meningioma treated exclusively with the endoscopic endonasal approach.

Anatomical study of the pterygopalatine fossa using an endoscopic endonasal approach: spatial relations and distances between surgical landmarks

2007 ◽  
Vol 106 (1) ◽  
pp. 157-163 ◽  
Author(s):  
Domenico Solari ◽  
Francesco Magro ◽  
Paolo Cappabianca ◽  
Luigi M. Cavallo ◽  
Amir Samii ◽  
...  
Keyword(s):  
Skull Base ◽  
Anatomical Study ◽  
Spatial Relations ◽  
Pterygopalatine Fossa ◽  
Direct Access ◽  
Anatomical Landmarks ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Invasive Approach

Object The pterygopalatine fossa is an area that lies deep within the skull base. The recent extensive use of the endoscopic endonasal approach has provided neurosurgeons with a method to reach various areas of the skull base through a less invasive approach than traditional transcranial or transfacial approaches. This study aims to provide neurosurgeons with new data concerning direct endoscopic measurements and precise anatomical topography features of the pterygopalatine fossa. Methods An anatomical dissection of six fixed cadaver heads (12 pterygopalatine fossae) was performed to analyze spatial relationships and distances between the most important neurovascular structures in this region, and to estimate the size of the endoscopic surgical field for operations in this area. The endoscopic endonasal approach offers direct access to the pterygopalatine fossa through its anteromedial walls. Conclusions Using an endoscopic endonasal approach makes it possible to identify all of the anatomical landmarks of the pterygopalatine fossa and almost all of the contiguous skull base areas.

Endoscopic, endonasal extended transsphenoidal, transplanum transtuberculum approach for resection of suprasellar lesions

2007 ◽  
Vol 106 (3) ◽  
pp. 400-406 ◽  
Author(s):  
Ilya Laufer ◽  
Vijay K. Anand ◽  
Theodore H. Schwartz
Keyword(s):  
Sella Turcica ◽  
Significant Risk ◽  
Csf Leak ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Rathke Cleft Cyst ◽  
Extended Transsphenoidal Approach ◽  
Csf Leakage ◽  
Planum Sphenoidale

Object The extended transsphenoidal approach is a less invasive method for removing purely suprasellar lesions compared with traditional transcranial approaches. Most advocates have used a sublabial incision and a microscope and have reported a significant risk of cerebrospinal fluid (CSF) leakage. The authors report on a series of purely endoscopic endonasal surgeries for resection of suprasellar supradiaphragmatic lesions above a normal-sized sella turcica with a low risk of CSF leakage. Methods A purely endoscopic endonasal approach was used to remove suprasellar lesions in a series of 10 patients. Five lesions were prechiasmal (three tuberculum sellae and two planum sphenoidale meningiomas) and five were post-chiasmal (four craniopharyngiomas and one Rathke cleft cyst). The floor of the planum sphenoidale and the sella turcica was reconstructed using a multilayer closure with autologous and synthetic materials. Spinal drainage was performed in only five cases. Complete resection of the lesions was achieved in all but one patient. The pituitary stalk was preserved in all but one patient, whose stalk was invaded by a craniopharyngioma and who had preoperative diabetes insipidus (DI). Vision improved postoperatively in all patients with preoperative impairment. Six patients had temporary DI; in five, the DI became permanent. Four patients with craniopharyngiomas required cortisone and thyroid replacement. After a mean follow up of 10 months, there was only one transient CSF leak when a lumbar drain was clamped prematurely on postoperative Day 5. Conclusions A purely endoscopic endonasal approach to suprasellar supradiaphragmatic lesions is a feasible minimally invasive alternative to craniotomy. With a multilayer closure, the risk of CSF leakage is low and lumbar drainage can be avoided. A larger series will be required to validate this approach.

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.

scholarly journals Endoscopic endonasal repair of sphenoid cerebrospinal fluid leak, review and institutional experience

2019 ◽  
Vol 5 (2) ◽  
pp. 241
Author(s):  
Isra Al-Jazeeri ◽  
Hassan Al-Jazeeri ◽  
Ali Al-Momen
Keyword(s):  
Demographic Data ◽  
Cerebrospinal Fluid Leak ◽  
Csf Leak ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Uncommon Presentation ◽  
Pubmed Database ◽  
Intracranial Complications ◽  
Csf Leaks

<p class="abstract"><strong>Background:</strong> Rhinogenic CSF leaks are not an uncommon presentation. Considering the possibility of drastic intracranial complications if left untreated, makes the management of such cases of outmost importance. Most of the non-traumatic CSF leaks will need a surgical repair. And since the introduction of the endoscopic nasal surgeries, these repairs are done almost always through the endoscopic endonasal approach.</p><p class="abstract"><strong>Methods:</strong> Retrospective review of cases with endoscopic repair of sphenoid CSF leak, who presented to King Fahad Specialist Hospital in Dammam (KFSH-D), from November 2003 to December 2017. And the U.S. National Library of Medicine (Pubmed) database was searched for “Sphenoid CSF Leak”.  </p><p class="abstract"><strong>Results:</strong> We had a total of 12 cases. The demographic data, diagnostic investigations and operative data were retrieved and reviewed.</p><p class="abstract"><strong>Conclusions:</strong> We advise using high resolution CT and intra-operative fluroscein for a reliable localization. And we found no complications with use of correct concentration of fluroscein. Endoscopic endonasal approach for repair of sphenoid CSF leak was found to be both effective and safe.</p>

scholarly journals Endoscopic endonasal approach for clipping of a PICA aneurysm

2020 ◽  
Vol 2 (2) ◽  
pp. V14
Author(s):  
Ezequiel Goldschmidt ◽  
Philippe Lavigne ◽  
Carl Snyderman ◽  
Paul A. Gardner
Keyword(s):  
Posterior Inferior Cerebellar Artery ◽  
Cranial Nerves ◽  
Neurological Deficits ◽  
Csf Leak ◽  
Open Approach ◽  
Endonasal Approach ◽  
Endoscopic Endonasal ◽  
Posthemorrhagic Hydrocephalus ◽  
Cerebellar Artery ◽  
Lower Cranial Nerves

This video depicts the case of a 59-year-old woman that presented to the emergency department with the worst headache of her life. CT showed subarachnoid hemorrhage and digital subtraction angiogram demonstrated a right-side posterior inferior cerebellar artery (PICA) aneurysm. Given the medial and ventral position of the aneurysm, deep to the lower cranial nerves, which obviated distal control from an open approach, and the absence of an endovascular option able to reliably preserve the PICA, an endonasal approach was offered. A far medial approach was performed, and the aneurysm was successfully clipped. The patient developed a postoperative CSF leak with persistent posthemorrhagic hydrocephalus treated with reexploration and an eventual ventriculoperitoneal shunt. The patient was discharged without neurological deficits.The video can be found here: https://youtu.be/_9hsM2CaMow.

scholarly journals Endoscopic Endonasal Transclival Approach to Ventral Pontine Cavernous Malformation: Case Report

2021 ◽  
Vol 8 ◽  
Author(s):  
Xiao Dong ◽  
Xiaoyu Wang ◽  
Anwen Shao ◽  
Jianmin Zhang ◽  
Yuan Hong
Keyword(s):  
Case Report ◽  
High Risk ◽  
Cavernous Malformation ◽  
Csf Leak ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Dorsal Approach ◽  
Endoscopic Endonasal ◽  
Cavernous Malformations ◽  
Individualized Approach

Ventral medial pontine cavernous malformations are challenging due to the location in eloquent tissue, surrounding critical anatomy, and potential symptomatic bleeding. Conventional approaches, such as anterolateral, lateral and dorsal approach, are associated with high risk of deleterious consequences due to excessive traction and damage to the surrounding tissues. The authors present an endoscopic endonasal approach for the resection of midline ventral pontine cavernous malformations, which follows principles of optimal access to brainstem cavernous malformations as the “two-point method.” No CSF leak or any other complications are obtained. The successful outcomes indicate that an individualized approach should be chosen before the surgery for brainstem cavernous malformations. With the advance of techniques, endoscopic endonasal approach could provide the most direct route to ventral pontine lesions with safety and efficiency.

The Front Door to Meckel's Cave: An Anteromedial Corridor via Expanded Endoscopic Endonasal Approach—Technical Considerations and Clinical Series

2009 ◽  
Vol 64 (suppl_1) ◽  
pp. ONS71-ONS83 ◽  
Author(s):  
Amin B. Kassam ◽  
Daniel M. Prevedello ◽  
Ricardo L. Carrau ◽  
Carl H. Snyderman ◽  
Paul Gardner ◽  
...  
Keyword(s):  
Medical Center ◽  
Cranial Nerves ◽  
Abducens Nerve ◽  
Direct Access ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Meckel’S Cave ◽  
Endoscopic Endonasal ◽  
Clinical Series ◽  
Meckel's Cave

Abstract Objective: Tumors within Meckel's cave are challenging and often require complex approaches. In this report, an expanded endoscopic endonasal approach is reported as a substitute for or complement to other surgical options for the treatment of various tumors within this region. Methods: A database of more than 900 patients who underwent the expanded endoscopic endonasal approach at the University of Pittsburgh Medical Center from 1998 to March of 2008 were reviewed. From these, only patients who had an endoscopic endonasal approach to Meckel's cave were considered. The technique uses the maxillary sinus and the pterygopalatine fossa as part of the working corridor. Infraorbital/V2 and the vidian neurovascular bundles are used as surgical landmarks. The quadrangular space is opened, which is bound by the internal carotid artery medially and inferiorly, V2 laterally, and the abducens nerve superiorly. This offers direct access to the anteroinferomedial segment of Meckel's cave, which can be extended through the petrous bone to reach the cerebellopontine angle. Results: Forty patients underwent an endoscopic endonasal approach to Meckel's cave. The most frequent abnormalities encountered were adenoid cystic carcinoma, meningioma, and schwannomas. Meckel's cave and surrounding structures were accessed adequately in all patients. Five patients developed a new facial numbness in at least 1 segment of the trigeminal nerve, but the deficit was permanent in only 2. Two patients had a transient Vlth cranial nerve palsy. Nine patients (30%) showed improvement of preoperative deficits on Cranial Nerves III to VI. Conclusion: In selected patients, the expanded endoscopic endonasal approach to the quadrangular space provides adequate exposure of Meckel's cave and its vicinity, with low morbidity.

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