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Article ; Conference proceedings: Endoscopic Transorbital Surgery for Trigeminal Schwannoma: New Innovative Technique

Kong, Doo-Sik

Journal of Neurological Surgery Part B: Skull Base

2023 Volume 84, Issue S 01

Event/congress	32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
Language	English
Publishing date	2023-02-01
Publisher	Georg Thieme Verlag KG
Publishing place	Stuttgart ; New York
Document type	Article ; Conference proceedings
ZDB-ID	2654269-9
ISSN	2193-634X ; 2193-6331
ISSN (online)	2193-634X
ISSN	2193-6331
DOI	10.1055/s-0043-1762516
Database	Thieme publisher's database

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Article: Editorial: Endoscopic transorbital surgery for skull base tumors.

Kong, Doo-Sik / Moe, Kris S

Frontiers in oncology

2022 Volume 12, Page(s) 1042655

Language	English
Publishing date	2022-10-27
Publishing country	Switzerland
Document type	Editorial
ZDB-ID	2649216-7
ISSN	2234-943X
ISSN	2234-943X
DOI	10.3389/fonc.2022.1042655
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Endoscopic Transorbital Surgery for Trigeminal Schwannoma: Introduction of a Novel Approach: 2-Dimensional Operative Video.

Kong, Doo-Sik / Shin, Hyung Jin

Operative neurosurgery (Hagerstown, Md.)

2023 Volume 26, Issue 1, Page(s) 96–97

Abstract: Indications corridor and limits of exposure: The major indications of endoscopic transorbital approach include spheno-orbital meningiomas, cavernous sinus lesions, and Meckel cave lesion such as trigeminal schwannomas. It can avoid excessive brain ... ...

Abstract	Indications corridor and limits of exposure: The major indications of endoscopic transorbital approach include spheno-orbital meningiomas, cavernous sinus lesions, and Meckel cave lesion such as trigeminal schwannomas. It can avoid excessive brain retraction and allows for a fast recovery to the normal daily living activity. Anatomic essentials need for preoperative planning and assessment: To access the cavernous sinus, the sagittal crest and meningo-orbital band should be identified and cut. Essential steps of the procedure: 1. Skin incision along the superior eyelid is performed. 2. Careful dissection of the soft tissue under the orbicularis is required not to injure the orbital septum. 3. After the lateral orbital rim is exposed, the periosteum and periorbita are elevated from the lateral orbital wall. 4. Drilling of the zygomatic bone within the orbit exposes the temporalis muscle first followed by the exposure of the temporal dura. It is essential to obtain adequate working room when the base of the greater sphenoidal wing is drilled. The sagittal crest should be removed, and the meningo-orbital band should be cut to expose the lateral cavernous sinus wall. Pitfalls/avoidance of complications: For successful access through the orbit, endoscopic transorbital approach needs to minimize the retraction of the orbit. To achieve this goal, retraction of the orbit should be limited to a maximum of 10 minutes. Variants and indications of their use: This approach can be combined with lateral orbitotomy. It provides a wider working room and makes surgery easier to access the lateral temporal lobe.The patient consented to the procedure, and the participants and any identifiable individuals consented to publication of his/her image. Images at 1:29 reproduced from Corrivetti F, de Notaris M, Di Somma A, et al, "Sagittal crest": definition, stepwise dissection, and clinical implications from a transorbital perspective, Operative Neurosurgery , 22(5), p e206-e212, ©2022, by permission from the Congress of Neurological Surgeons. Video screen capture from The Neurosurgical Atlas at 1:06 used with permission from Aaron Cohen-Gadol; ©The Neurosurgical Atlas, all rights reserved.
MeSH term(s)	Humans ; Female ; Male ; Endoscopy/methods ; Neurosurgical Procedures/methods ; Orbit/surgery ; Cranial Nerve Neoplasms/diagnostic imaging ; Cranial Nerve Neoplasms/surgery ; Meningeal Neoplasms/diagnostic imaging ; Meningeal Neoplasms/surgery ; Neurilemmoma/diagnostic imaging ; Neurilemmoma/surgery
Language	English
Publishing date	2023-10-11
Publishing country	United States
Document type	Video-Audio Media ; Journal Article
ZDB-ID	2767575-0
ISSN	2332-4260 ; 2332-4252
ISSN (online)	2332-4260
ISSN	2332-4252
DOI	10.1227/ons.0000000000000893
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Zs.A 1424 -ON-: Show issues

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Article ; Online: Endoscopic transorbital approach in children: surgical technique and early results.

Jeon, Chiman / Chong, Kyuha / Shin, Hyung Jin / Kong, Doo-Sik

Neurosurgical focus

2024 Volume 56, Issue 4, Page(s) E12

Abstract: Objective: In this study, the authors aimed to describe the endoscopic transorbital approach (ETOA) in children.: Methods: Six pediatric patients (2 girls and 4 boys) underwent the ETOA for paramedian skull base lesions at a single institution ... ...

Abstract	Objective: In this study, the authors aimed to describe the endoscopic transorbital approach (ETOA) in children. Methods: Six pediatric patients (2 girls and 4 boys) underwent the ETOA for paramedian skull base lesions at a single institution between September 2016 and February 2023. Results: The median age at the time of surgery was 7.5 (range 4-18) years. The median follow-up period was 33 (range 9-60) months. In this series, the ETOA level of difficulty included stage 1 (n = 2, 33.3%), stage 3 (n = 3, 50%), and stage 5 (n = 1, 16.7%). The ETOA was performed for tumor resection in 4 cases; the final pathology consisted of fibrous dysplasia, pilocytic astrocytoma, metastatic neuroblastoma, and choroid plexus papilloma. The procedure was also performed for repair of a petrous apex meningocele and for lateral orbital wall decompression of traumatic lateral rectus muscle entrapment. One patient experienced a transient cranial nerve III palsy after the procedure. There were no operative deaths in this series. Conclusions: In select cases, the ETOA can be considered a minimally invasive alternative for conventional skull base approaches in the armamentarium of pediatric skull base surgery. Further investigation and the accumulation of experience are warranted in the future to enhance the efficacy and applicability of the ETOA in pediatric patients.
MeSH term(s)	Male ; Female ; Humans ; Child ; Child, Preschool ; Adolescent ; Endoscopy/methods ; Skull Base/surgery ; Neurosurgical Procedures/methods ; Petrous Bone ; Orbit/surgery
Language	English
Publishing date	2024-03-15
Publishing country	United States
Document type	Journal Article
ZDB-ID	2026589-X
ISSN	1092-0684 ; 1092-0684
ISSN (online)	1092-0684
ISSN	1092-0684
DOI	10.3171/2024.1.FOCUS23858
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Superior eyelid transorbital approaches: a modular classification system.

de Notaris, Matteo / Kong, Doo-Sik / Di Somma, Alberto / Enseñat, Joaquim / Hong, Chang-Ki / Moe, Kris / Schwartz, Theodore H

Journal of neurosurgery

2024 , Page(s) 1–6

Language	English
Publishing date	2024-04-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	3089-2
ISSN	1933-0693 ; 0022-3085
ISSN (online)	1933-0693
ISSN	0022-3085
DOI	10.3171/2024.1.JNS232465
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Article ; Online: Feasibility and efficacy of endoscopic transorbital optic canal decompression for meningiomas causing compressive optic neuropathy.

Kim, Jeong-Hwa / Hong, Chang-Ki / Shin, Hyung-Jin / Kong, Doo-Sik

Journal of neurosurgery

2023 Volume 140, Issue 2, Page(s) 412–419

Abstract: Objective: The endoscopic transorbital approach (ETOA) and transorbital anterior clinoidectomy have been suggested as novel procedures through which to reach the superolateral compartments of the orbit, allowing optic canal decompression. However, there ...

Abstract	Objective: The endoscopic transorbital approach (ETOA) and transorbital anterior clinoidectomy have been suggested as novel procedures through which to reach the superolateral compartments of the orbit, allowing optic canal decompression. However, there is limited literature describing the technical details and surgical outcomes of these procedures. In this study, the authors aimed to analyze the feasibility and efficacy of endoscopic transorbital decompression of the optic canal through anterior clinoidectomy for compressive optic neuropathic lesions. Methods: Between 2016 and 2022, the authors performed ETOA for compressive optic neuropathic lesions in 14 patients. All these patients underwent transorbital anterior clinoidectomy through the surgically defined "intraorbital clinoidal triangle," which is composed of the roof of the superior orbital fissure, the medial margin of the optic canal, the medial border of the superior orbital fissure, and the optic strut. Demographic data, tumor characteristics, pre- and postoperative imaging, pre- and postoperative visual examinations, and surgical outcomes were retrospectively reviewed. Results: The mean age at the time of ETOA was 53.3 years (range 41-64 years), and the mean follow-up was 16.8 months (range 6.7-51.4 months). The inclusion criterion in this study was having a meningioma (14 patients). In the preoperative visual function examination, 7 patients with a meningioma showed progressive visual impairment. After endoscopic transorbital optic canal decompression, visual function improved in 5 patients, remained unchanged in 8 patients, and worsened in 1 patient. No new-onset neurological deficit was associated with ETOA and anterior clinoidectomy in any patients. Conclusions: Endoscopic transorbital decompression of the optic canal with extradural anterior clinoidectomy is a safe and feasible technique that avoids significant injury to the clinoidal internal carotid artery and surrounding neurovascular structures.
MeSH term(s)	Humans ; Adult ; Middle Aged ; Meningioma/complications ; Meningioma/diagnostic imaging ; Meningioma/surgery ; Neurosurgical Procedures/methods ; Retrospective Studies ; Feasibility Studies ; Optic Nerve Diseases/diagnostic imaging ; Optic Nerve Diseases/etiology ; Optic Nerve Diseases/surgery ; Meningeal Neoplasms/surgery ; Decompression
Language	English
Publishing date	2023-08-04
Publishing country	United States
Document type	Journal Article
ZDB-ID	3089-2
ISSN	1933-0693 ; 0022-3085
ISSN (online)	1933-0693
ISSN	0022-3085
DOI	10.3171/2023.5.JNS2326
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Longitudinal changes in optic disc cupping from the baseline in chiasmal lesion optic neuropathy and glaucoma.

Lee, Eun Jung / Han, Jong Chul / Kang, Mira / Kong, Doo-Sik / Hong, Sang Duk / Park, Kyung-Ah / Kee, Changwon

Scientific reports

2024 Volume 14, Issue 1, Page(s) 8889

Abstract: We aimed to investigate the changes in cupping in chiasmal lesion optic neuropathy (chON) compared to baseline optic disc and glaucoma. We used a novel study design to enroll patients who had fundus photographs incidentally taken during routine health ... ...

Abstract	We aimed to investigate the changes in cupping in chiasmal lesion optic neuropathy (chON) compared to baseline optic disc and glaucoma. We used a novel study design to enroll patients who had fundus photographs incidentally taken during routine health check-ups prior to the onset of optic neuropathy. In 31 eyes (21 patients) with chON and 33 eyes (30 patients) with glaucoma, we investigated the change in cup-to-disc (C/D) area from the baseline to overt cupping using flicker analysis. Compared to the baseline, 23 eyes (74.2%) had increased cup size and 3 (9.7%) had vascular configuration changes in the chONgroup; in contrast, all glaucoma eyes exhibited changes in cup size and vascular configuration. The increase in C/D area ratio was significantly smaller in chON (0.04 ± 0.04) compared to glaucoma (0.10 ± 0.04, P < 0.001); the minimum residual neuroretinal rim width showed a more pronounced difference (29.7 ± 8.2% vs 7.1 ± 3.9%, P < 0.001). The changes distributed predominantly towards the nasal direction in chON, contrasting the changes to the arcuate fibers in glaucoma. In conclusion, our results provide the first longitudinal evidence of true pathological cupping in chONcompared to photographically disease-free baseline. The marked difference in the residual minimum rim width reaffirms the importance of rim obliteration in the differential diagnosis between the two diseases.
MeSH term(s)	Humans ; Optic Disk/pathology ; Glaucoma/pathology ; Optic Nerve Diseases/pathology ; Optic Chiasm/pathology ; Fundus Oculi ; Intraocular Pressure
Language	English
Publishing date	2024-04-17
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-024-59419-3
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Comparison of Graft Materials in Multilayer Reconstruction with Nasoseptal Flap for High-Flow CSF Leak during Endoscopic Skull Base Surgery.

Kim, Byung Kil / Kong, Doo-Sik / Nam, Do-Hyun / Hong, Sang Duk

Journal of clinical medicine

2022 Volume 11, Issue 22

Abstract: Cerebrospinal fluid (CSF) leak is a crucial complication after endoscopic skull base surgery. Therefore, multilayer reconstruction with grafts is as essential as a reconstruction with pedicled flaps. Although widely used, the multilayer technique with ... ...

Abstract	Cerebrospinal fluid (CSF) leak is a crucial complication after endoscopic skull base surgery. Therefore, multilayer reconstruction with grafts is as essential as a reconstruction with pedicled flaps. Although widely used, the multilayer technique with autologous fascia lata has drawbacks, such as additional wound and donor site complications. We compared acellular dermal graft and banked homologous fascia lata graft (alternative grafts) with autologous fascia lata graft for high-flow CSF leak repair. We retrospectively enrolled 193 subjects who underwent endoscopic skull base reconstruction with multilayer fascial grafts and nasoseptal flap for high-flow CSF leaks from November 2014 to February 2020 at a single institution. Acellular dermal matrix (ADM), banked homologous fascia lata, and autologous fascia lata were used in 48 (24.9%), 102 (52.8%), and 43 (22.3%) patients, respectively. Postoperative CSF leaks occurred in 23 (11.9%) patients and meningitis in 8 (4.1%). There was no significant difference in postoperative CSF leak (
Language	English
Publishing date	2022-11-13
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662592-1
ISSN	2077-0383
ISSN	2077-0383
DOI	10.3390/jcm11226711
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Outcomes after Microvascular Decompression for Hemifacial Spasm without Definite Radiological Neurovascular Compression at the Root Exit Zone.

Jeon, Chiman / Kim, Minsoo / Lee, Hyun-Seok / Kong, Doo-Sik / Park, Kwan

Life (Basel, Switzerland)

2023 Volume 13, Issue 10

Abstract: The purpose of this study was to investigate the outcome of microvascular decompression (MVD) in patients with hemifacial spasm (HFS) who have no definite radiological neurovascular compression (NVC). Sixteen HFS patients without radiological NVC on ... ...

Abstract	The purpose of this study was to investigate the outcome of microvascular decompression (MVD) in patients with hemifacial spasm (HFS) who have no definite radiological neurovascular compression (NVC). Sixteen HFS patients without radiological NVC on preoperative MRI underwent MVD surgery. The symptoms were left-sided in fourteen (87.5%) and right-sided in two patients (12.5%). Intraoperatively, the most common vessel compressing the facial nerve was the AICA (8, 44.4%), followed by arterioles (5, 27.8%), veins (4, 22.2%), and the PICA (1, 5.6%). The most common compression site was the cisternal portion (13, 76.5%) of the facial nerve, followed by the REZ (4, 23.5%). One patient (6.3%) was found to have multiple NVC sites. Arachnoid type (7, 50%) was the most common compressive pattern, followed by perforator type (4, 28.6%), sandwich type (2, 14.3%), and loop type (1, 7.1%). A pure venous compression was seen in two patients, while a combined venous-arterial "sandwich" compression was detected in two patients. Symptom improvement was observed in all of the patients. Only one patient experienced recurrence after improvement. Based on our experience, MVD surgery can be effective for primary HFS patients with no definite radiological NVC. MVD can be considered if the patient shows typical HFS features, although NVC is not evident on MRI.
Language	English
Publishing date	2023-10-16
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2662250-6
ISSN	2075-1729
ISSN	2075-1729
DOI	10.3390/life13102064
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Conference proceedings: Neuro-Ophthalmologic Outcomes of Orbital Apex Syndrome Caused by Invasive Fungal Sinusitis

Hong, Sang Duk / Shin, Joongbo / Ryu, Gwanghui / Kim, Hyo Yeol / Jung, Yong Gi / Kong, Doo-Sik

Journal of Neurological Surgery Part B: Skull Base

2023 Volume 84, Issue S 01

Event/congress	32nd Annual Meeting North American Skull Base Society, JW Marriott Tampa Water Street, Tampa, Florida, United States, 2023-02-17
Language	English
Publishing date	2023-02-01
Publisher	Georg Thieme Verlag KG
Publishing place	Stuttgart ; New York
Document type	Article ; Conference proceedings
ZDB-ID	2654269-9
ISSN	2193-634X ; 2193-6331
ISSN (online)	2193-634X
ISSN	2193-6331
DOI	10.1055/s-0043-1762126
Database	Thieme publisher's database

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