scholarly journals Petrosal Approach for Giant Retrochiasmatic Craniopharyngioma: 2-Dimensional Operative Video

2021 ◽  
Author(s):  
Kadir Erkmen ◽  
Emad Aboud ◽  
Ossama Al-Mefty
Keyword(s):  
Basilar Artery ◽  
Third Ventricle ◽  
Significant Risk ◽  
Surgical Instruments ◽  
Cerebrospinal Fluid Leakage ◽  
Posterior Aspect ◽  
Endoscopic Techniques ◽  
Publishing Group ◽  
Microsurgical Resection ◽  
Prefixed Chiasm

Abstract Microsurgical resection of craniopharyngiomas poses significant challenges, which are amplified with tumors in the retrochiasmatic location and larger size. Traditional pterional trans-sylvian, subfrontal translamia terminalis, or interhemispheric approaches provide narrow surgical corridors with obstructed visualization of the tumor by the prefixed chiasm and slit optic carotid window.1–5 The superior extension of the tumor compressing the hypothalamus and third ventricle are likewise inaccessible. Dissection through these approaches requires crossing and manipulation of the already compromised optic apparatus with surgical instruments. Finally, the basilar artery and its perforating branches are often adherent to the posterior aspect of the tumor, and are invisible.  Endonasal endoscopic techniques have been utilized as a surgical approach that accesses the tumor without crossing the optic apparatus; however, these approaches have a significant risk of cerebrospinal fluid leakage and require dissection of the basilar artery and hypothalamus from long distances with lengthy instruments.6–9 Frequently, the surgeon achieves only partial removal.  The petrosal approach is ideal for tumors in the retrochiasmatic location.10–13 Advantages include unhindered access to the retrochiasmatic space without crossing the optic nerve and chiasm. The angle of approach allows visualization superiorly to the hypothalamus. Additionally, the approach shortens the distance to the tumor, allowing for delicate bimanual dissection of the tumor, especially at the basilar artery and hypothalamic interfaces.  This video demonstrates three cases of retrochiasmatic craniopharyngioma resection through the petrosal approach, highlighting these advantages to optimize patient outcome. The patients and guardians consented for the surgery, photography, and publication of the patient's image.  Figures from Al-Mefty et al11 used with permission from the Journal of Neurosurgery Publishing Group.  Additional figures republished from Al-Mefty et al.12 “The petrosal approach for the resection of retrochiasmatic craniopharyngiomas,” Neurosurgery, 2008, volume 62, issue 5 Suppl 2 (ONS), ONS331-ONS336, by permission of the Congress of Neurological Surgeons.

scholarly journals COLLOID CYST OF THE THIRD VENTRICLE

2010 ◽  
Vol 17 (01) ◽  
pp. 156-163
Author(s):  
NAVEED ASHRAF ◽  
MUHAMMAD AKMAL AZEEMI ◽  
FAUZIA SAJJAD ◽  
Asma Ghouri
Keyword(s):  
Clinical Success ◽  
Standard Procedure ◽  
Third Ventricle ◽  
Colloid Cyst ◽  
Invasive Approach ◽  
Keyhole Surgery ◽  
The Third ◽  
Number Of Patients ◽  
Colloid Cysts ◽  
Microsurgical Resection

Objectives: Cerebrospinal fluid shunting or microsurgical resection of the colloid cysts of the third ventricle have long been a standard treatment. The emergence of neuroendoscopy has lead to its application in various neurosurgical problems. Colloid cyst of the third ventricle is one such pathology where endoscopic treatment has been performed with great clinical success during the past decade. We now Although considered less efficacious than microsurgical excision endoscopic excision is less invasive and much simpler.Objectives: (1) to assess the extent of excision (2) to assess the morbid anatomy of the colloid cyst (3) to assess the risk of complications (4) to assess the functional outcome. Period: Eight years (Jul 2001-June 2009) Materials and Methods: Endoscopic resections of 15 colloid cysts of the third ventricle with obstruction of Foramina of Monroe in all cases. Results: Total removal was achieved in 10 (66.7%) cases. In 5 (33.3%) patients the colloid material was evacuated completely while the remnant of the capsule adherent to its origin was left behind. Two (13.3%) patients developed meningitis one week postoperatively and one diedsubsequently. Nine (60%) patients had excellent recovery as the symptoms were relieved during a period of 3 to 24 months. Five (33.3%) of the total patients required ventriculoperitoneal shunt for obstructivey drocephalus which developed with in 2 weeks after surgery. One out of the total number of patients deteriorated postoperatively on the existing neurological deficit. There has not been any recurrence until now with subtotal excision of the capsule. Conclusions: Keyhole surgery under endoscopic visual control offers an alternative, very effective minimally invasive approach for the excision of colloid cyst of the third ventricle and is likely to replace microsurgical resection as a standard procedure.

The Relationship between the Third Ventricle and the Basilar Artery

1954 ◽  
Vol Original Series, Volume 42 (2) ◽  
pp. 85-100
Author(s):  
T. Greitz ◽  
S. Lofstedt
Keyword(s):  
Basilar Artery ◽  
Third Ventricle ◽  
The Third ◽  
The Relationship

Awake Surgical Management of Third Ventricular Tumors: A Preliminary Safety, Feasibility, and Clinical Applications Study

2019 ◽  
Vol 17 (2) ◽  
pp. 208-226 ◽  
Author(s):  
Srikant S Chakravarthi ◽  
Amin B Kassam ◽  
Melanie B Fukui ◽  
Alejandro Monroy-Sosa ◽  
Nichelle Rothong ◽  
...  
Keyword(s):  
General Anesthesia ◽  
Average Length ◽  
Third Ventricle ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
Cognitive Outcomes ◽  
Cognitive Changes ◽  
Average Length Of Stay ◽  
Intraoperative Management ◽  
Average Operative Time

AbstractBACKGROUNDEndoscopic and microneurosurgical approaches to third ventricular lesions are commonly performed under general anesthesia.OBJECTIVETo report our initial experience with awake transsulcal parafascicular corridor surgery (TPCS) of the third ventricle and its safety, feasibility, and limitations.METHODSA total of 12 cases are reviewed: 6 colloid cysts, 2 central neurocytomas, 1 papillary craniopharyngioma, 1 basal ganglia glioblastoma, 1 thalamic glioblastoma, and 1 ependymal cyst. Lesions were approached using TPCS through the superior frontal sulcus. Pre-, intra-, and postoperative neurocognitive (NC) testing were performed on all patients.RESULTSNo cases required conversion to general anesthesia. Awake anesthesia changed intraoperative management in 4/12 cases with intraoperative cognitive changes that required port re-positioning; 3/4 recovered. Average length of stay (LOS) was 6.1 d ± 6.6. Excluding 3 outliers who had preoperative NC impairment, the average LOS was 2.5 d ± 1.2. Average operative time was 3.00 h ± 0.44. Average awake anesthesia time was 5.05 h ± 0.54. There were no mortalities.CONCLUSIONThis report demonstrated the feasibility and safety of awake third ventricular surgery, and was not limited by pathology, size, or vascularity. The most significant factor impacting LOS was preoperative NC deficit. The most significant risk factor predicting a permanent NC deficit was preoperative 2/3 domain impairment combined with radiologic evidence of invasion of limbic structures – defined as a “NC resilience/reserve” in our surgical algorithm. Larger efficacy studies will be required to demonstrate the validity of the algorithm and impact on long-term cognitive outcomes, as well as generalizability of awake TPCS for third ventricular surgery.

Endoscopic third ventriculostomy in obstructive hydrocephalus due to giant basilar artery aneurysm

2009 ◽  
Vol 110 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Joachim M. K. Oertel ◽  
Yvonne Mondorf ◽  
Michael R. Gaab
Keyword(s):  
Basilar Artery ◽  
Endoscopic Treatment ◽  
Endoscopic Third Ventriculostomy ◽  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Clinical Signs ◽  
Artery Aneurysm ◽  
Third Ventriculostomy ◽  
Upward Displacement ◽  
Age Range

Obstructive hydrocephalus due to giant basilar artery (BA) aneurysm is a rare finding, and endoscopic treatment has not been reported. Here the authors present their experience with endoscopic third ventriculostomy (ETV) in obstructive hydrocephalus due to giant BA aneurysm. Between December 2000 and March 2007, 3 patients (2 men and 1 woman; age range 32–80 years) underwent an ETV for the treatment of obstructive hydrocephalus caused by a giant BA aneurysm. All 3 patients presented with cephalgia, nausea, vomiting, and a variable decrease in consciousness. An obstructive hydrocephalus caused by a giant BA aneurysm was found in each case as the underlying pathological entity. Intraoperatively, a narrowing of the third ventricle by upward displacement of the tegmentum was found in all 3 patients. A standard ETV was performed and included an inspection of the prepontine cisterns. The endoscopic treatment was successful in all patients with respect to clinical signs and radiological ventricular enlargement. No complications were observed. In all, the endoscopic ventriculostomy was proven to be a successful treatment option in obstructive hydrocephalus even if it is caused by untreated giant BA aneurysm.

scholarly journals Endoscopic-assisted posterior interhemispheric retrocallosal transfalcine approach for microsurgical resection of a pineal region falcotentorial meningioma: operative video and technical nuances

2016 ◽  
Vol 40 (videosuppl1) ◽  
pp. 1 ◽  
Author(s):  
James K. Liu ◽  
Michael A. Cohen
Keyword(s):  
Significant Risk ◽  
Signs And Symptoms ◽  
Lateral Position ◽  
Surgical Anatomy ◽  
Pineal Region ◽  
Definitive Treatment ◽  
Surgical Approaches ◽  
Vein Of Galen ◽  
Straight Sinus ◽  
Microsurgical Resection

Falcotentorial meningiomas are rare tumors of the pineal region that arise from the dural folds where the falx and tentorium meet and are often intimately related to the vein of Galen and straight sinus. These lesions often present with signs and symptoms related to hydrocephalus and brainstem compression. Surgical resection of falcotentorial meningiomas remains the definitive treatment, with a variety of surgical approaches used to resect these lesions. The choice of approach depends on several factors, including the size and location of the tumor relative to the vein of Galen complex. Falcotentorial meningiomas can be technically challenging to remove with significant risk of morbidity because of the close proximity to and occasional invasion of the vein of Galen and straight sinus. In this operative video, the authors demonstrate an illustrative step-by-step technique for endoscopic-assisted microsurgical resection of a falcotentorial meningioma using the posterior interhemispheric retrocallosal transfalcine approach for a superiorly positioned falcotentorial meningioma. The surgical nuances are discussed, including the surgical anatomy, gravity-assisted interhemispheric approach in the lateral position, retrocallosal dissection, transfalcine exposure, tumor removal, and preservation of the vein of Galen complex. In summary, the posterior interhemispheric retrocallosal transfalcine approach is a useful surgical strategy for select superiorly positioned falcotentorial meningiomas.The video can be found here: https://youtu.be/d8mdunsRacs.

scholarly journals Extended Endoscopic Endonasal Resection of a Suprasellar and Third Ventricular Retrochiasmatic Craniopharyngioma with a Narrow Pituitary Gland–Optic Chiasm Interval: Techniques to Optimize Resection

2018 ◽  
Vol 79 (S 03) ◽  
pp. S252-S253
Author(s):  
Tyler Kenning ◽  
Carlos Pinheiro-Neto
Keyword(s):  
Pituitary Gland ◽  
Third Ventricle ◽  
Mass Effect ◽  
Optic Chiasm ◽  
Endoscopic Endonasal Approach ◽  
Endonasal Approach ◽  
Posterior Aspect ◽  
Endoscopic Endonasal ◽  
The Third ◽  
Extended Endoscopic Approach

AbstractThe extended endoscopic endonasal approach can be utilized to surgically treat pathology within the suprasellar space. This relies on a sufficient corridor and interval between the superior aspect of the pituitary gland and the optic chiasm. Tumors located in the retrochiasmatic space and within the third ventricle, however, may not have a widened interval through which to work. With mass effect on the superior and posterior aspect of the optic chiasm, the corridor between the chiasm and the pituitary gland might even be further narrowed. This may negate the possibility of utilizing the endoscopic endonasal approach for the management of pathology in this location. We present a case of a retrochiasmatic craniopharyngioma with a narrow resection corridor that was treated with the extended endoscopic approach and we review techniques to potentially overcome this limitation.The link to the video can be found at: https://youtu.be/ogRZj-aBqeQ.

scholarly journals Surgical management of craniopharyngioma with third ventricle involvement

2013 ◽  
Vol 34 (v1supplement) ◽  
pp. 1 ◽  
Author(s):  
Danielle de Lara ◽  
Leo F. S. Ditzel Filho ◽  
Jun Muto ◽  
Bradley A. Otto ◽  
Ricardo L. Carrau ◽  
...  
Keyword(s):  
Third Ventricle ◽  
Postoperative Recovery ◽  
Direct Access ◽  
Cerebrospinal Fluid Leakage ◽  
Nasoseptal Flap ◽  
Total Removal ◽  
Tumor Removal ◽  
The Third ◽  
Suprasellar Region ◽  
History Of

Craniopharyngiomas are notorious for their ability to invade the hypothalamus and third ventricle. Although several transcranial approaches have been proposed for their treatment, the endonasal route provides direct access to the tumor with no need for cerebral retraction or manipulation of the optic apparatus. After the lesion is debulked, the unique angle of approach achieved with this technique enables the surgeon to perform an extra-capsular dissection and visualize the walls of the third ventricle, the foramina of Monro, and the anterior comissure. Moreover, the enhanced magnification and lighting afforded by the endoscope facilitate safe tumor removal, particularly in areas where there is loss of clear lesion delimitation and greater infiltration of the surrounding structures.Herein we present the case of a 68-year-old female patient with a 3-month history of visual deterioration accompanied by worsening headaches. Investigation with magnetic resonance imaging revealed a heterogeneous mass in the suprasellar region, extending into the third ventricle and displacing the pituitary gland and stalk inferiorly. Hormonal profile was within expected range for her age. An endonasal, fully endoscopic, transplanum transtuberculum approach was performed. Gross-total removal was achieved and pathology confirmed the diagnosis of craniopharyngioma. Postoperative recovery was marked by transient diabetes insipidus. Closure was achieved with a pedicled nasoseptal flap; despite exploration of the third ventricle, there was no cerebrospinal fluid leakage. Pituitary function was preserved. Visual function has fully recovered and the patient has been uneventfully followed since surgery.The video can be found here: http://youtu.be/it5mpofZl0Q.

Efficacy and Safety of Endoscopic Transventricular Lamina Terminalis Fenestration for Hydrocephalus

Neurosurgery ◽  
2012 ◽  
Vol 71 (2) ◽  
pp. 464-473 ◽  
Author(s):  
Leonardo Rangel-Castilla ◽  
Steven W. Hwang ◽  
Andrew Jea ◽  
Jaime Torres-Corzo
Keyword(s):  
Ventriculoperitoneal Shunt ◽  
Perioperative Complications ◽  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Significant Risk ◽  
Good Alternative ◽  
Aqueductal Stenosis ◽  
Third Ventriculostomy ◽  
Lamina Terminalis ◽  
Transforaminal Approach

Abstract BACKGROUND: Endoscopic third ventriculostomy (ETV) has become the procedure of choice in the treatment of obstructive hydrocephalus. In certain cases, standard ETV might not be technically possible or may engender significant risk. OBJECTIVE: To present an alternative through the lamina terminalis (LT) by a transventricular, transforaminal approach with flexible neuroendoscopy and to discuss the indications, technique, neuroendoscopic findings, and outcomes. METHODS: Between 1994 and 2010, all patients who underwent endoscopic LT fenestration as an alternative to ETV were analyzed and prospectively followed up. The decision to perform an LT fenestration was made intraoperatively. RESULTS: Twenty-five patients, ranging in age from 7 months to 76 years (mean, 28.1 years), underwent endoscopic LT fenestration. Patients had obstructive hydrocephalus secondary to neurocysticercosis (11 patients), neoplasms (6 patients), congenital aqueductal stenosis (3 patients), and other (5 patients). Thirteen patients (52%) had had at least 1 ventriculoperitoneal shunt that malfunctioned; 6 patients (24%) had undergone a previous endoscopic procedure. Intraoperative findings that led to an LT fenestration were the following: ETV not feasible to perform, basal subarachnoid space not sufficient, or adhesions in the third ventricle. No perioperative complications occurred. The mean follow-up period was 63.76 months. Overall, 19 patients (76%) had resolutions of symptoms, had no evidence of ventriculomegaly, and did not require another procedure. Six (24%) required a ventriculoperitoneal shunt. CONCLUSION: Endoscopic transventricular transforaminal LT fenestration with flexible neuroendoscopy is feasible with a low incidence of complications. It is a good alternative to standard ETV. Adequate intraoperative assessment of ETV success is necessary to identify patients who will benefit.

Indocyanine Green Angiography in Endoscopic Third Ventriculostomy

2013 ◽  
Vol 73 (suppl_1) ◽  
pp. ons67-ons73 ◽  
Author(s):  
Dorothee Wachter ◽  
Timo Behm ◽  
Kajetan von Eckardstein ◽  
Veit Rohde
Keyword(s):  
Indocyanine Green ◽  
Basilar Artery ◽  
Endoscopic Third Ventriculostomy ◽  
Third Ventricle ◽  
Third Ventriculostomy ◽  
The Third ◽  
Vessel Injury ◽  
Icg Angiography ◽  
Noncommunicating Hydrocephalus ◽  
Intraoperative Visualization

Abstract BACKGROUND: Endoscopic third ventriculostomy (ETV) has become a well-established method for the treatment of noncommunicating hydrocephalus with a high success rate and a relatively low morbidity rate. However, vessel injury has been repeatedly reported, often with a fatal outcome. Vessel injury is considered to be the most threatening complication. The use of indocyanine green (ICG) angiography has become an established tool in vascular microneurosurgery. OBJECTIVE: We report our initial experience with endoscopic ICG angiography in ETV for intraoperative visualization of the basilar artery and its perforators to reduce the risk of vascular injury. METHODS: Eleven patients with noncommunicating hydrocephalus underwent ETV. Before opening of the third ventricular floor, ICG angiography was performed using a prototype neuroendoscope for intraoperative visualization of ICG fluorescence. RESULTS: In 10 patients, ETV and ICG angiography were successfully performed. In 1 case, ICG angiography failed. Even in the presence of an opaque floor of the third ventricle (n = 5), ICG angiography clearly demonstrated the course of the basilar artery and its major branches and was considered useful. CONCLUSION: ICG angiography has the potential to become a useful adjunct in ETV for better visualization of vessel structures, especially in the presence of aberrant vasculature, a nontranslucent floor of the third ventricle, or in case of reoperations.

scholarly journals Retractorless interforniceal approach for microsurgical resection of a papillary tumor of the pineal region: operative video and technical nuances

2021 ◽  
Vol 5 (1) ◽  
pp. V12
Author(s):  
James K. Liu ◽  
Neil Majmundar
Keyword(s):  
Obstructive Hydrocephalus ◽  
Third Ventricle ◽  
Lateral Position ◽  
Pineal Region ◽  
Gross Total Resection ◽  
Cerebral Aqueduct ◽  
Papillary Tumor ◽  
Total Resection ◽  
Microsurgical Resection ◽  
Neurologically Intact

In this illustrative video, the authors demonstrate microsurgical resection of a papillary tumor of the pineal region using a retractorless interforniceal approach via the anterior interhemispheric transcallosal route. The tumor presented to the posterior third ventricle occluding the cerebral aqueduct, resulting in obstructive hydrocephalus. The retractorless interforniceal approach is performed in the lateral position with BICOL collagen spacers to keep the corridor open. Gross-total resection was achieved, and the patient was neurologically intact without needing a permanent shunt. The operative nuances and pearls of technique for safe microdissection and gentle handling of the retractorless interforniceal approach are demonstrated. The video can be found here: https://stream.cadmore.media/r10.3171/2021.4.FOCVID2139.

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