Endoscopic Endonasal Treatment of Ostium of the Frontal Sinus and the Results of Endoscopic Surgery

We discuss a procedure for opening the nasofrontal duct and the postoperative findings in endoscopic endonasal surgery. The route of the anterior ethmoidal artery was also studied. The subjects of this study were 57 patients (105 sides) who had frontal sinus disease. The patients all underwent surgery for chronic sinusitis between 1990 and 1992. Patients undergoing revision surgery were excluded. All patients were operated on by the same surgeon. In each patient, following anterior and posterior ethmoidectomy, the frontal sinus ostial region was opened using a 70 endoscope, while carefully monitoring the anterior ethmoidal artery. The agger nasi was left intact. The cells around the ostium were opened using a curved suction tip and upward bent forceps, and the lamellae were removed to achieve the greatest possible communication with the frontal sinus. In 77 sides (73.4%), the communication between the frontal and ethmoidal sinuses was well maintained. The ostium was patent with edematous mucosa in 18 sides (17.1%). The opened ostium could not be confirmed due to presence of polyp, etc., in 10 sides (9.5%). During surgery, the route of the anterior ethmoidal artery was confirmed in 70.8%; and of these cases, it was located anterior to the third ground lamella in about 50%.

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Anterior ethmoidal artery – implications in endoscopic endonasal surgery

ORL ro ◽

10.26416/orl.46.1.2020.2840 ◽

2020 ◽

Vol 1 (46) ◽

pp. 21

Author(s):

Vlad Andrei Budu ◽

Silviu Crăc ◽

Alexandra Gheorghe ◽

I. Bulescu

Keyword(s):

Endoscopic Endonasal Surgery ◽

Endonasal Surgery ◽

Endoscopic Endonasal ◽

Ethmoidal Artery ◽

Anterior Ethmoidal Artery

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PATENCY OF THE OSTIUM OF THE FRONTAL SINUS AFTER ENDOSCOPIC ENDONASAL SURGERY FOR CHRONIC SINUSITIS

Nippon Jibiinkoka Gakkai Kaiho ◽

10.3950/jibiinkoka.99.653 ◽

1996 ◽

Vol 99 (5) ◽

pp. 653-660,721 ◽

Cited By ~ 4

Author(s):

NOBUYOSHI OTORI ◽

MASAYA FUKAMI ◽

KIYOSHI YANAGI ◽

KAZUYASU ASAI ◽

MAKOTO IIDA ◽

...

Keyword(s):

Frontal Sinus ◽

Chronic Sinusitis ◽

Endoscopic Endonasal Surgery ◽

Endonasal Surgery ◽

Endoscopic Endonasal

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Effect of endoscopic endonasal surgery on olfactory disturbance caused by chronic sinusitis

Nihon Bika Gakkai Kaishi (Japanese Journal of Rhinology) ◽

10.7248/jjrhi1982.32.2_315 ◽

1993 ◽

Vol 32 (2) ◽

pp. 315-320

Author(s):

Harumi Suzaki ◽

Seido Ohki ◽

Emiko Akashi ◽

Yasuya Nomura

Keyword(s):

Chronic Sinusitis ◽

Endoscopic Endonasal Surgery ◽

Endonasal Surgery ◽

Endoscopic Endonasal ◽

Olfactory Disturbance

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Reinvestigating Tumor–Ventricle Relationship of Craniopharyngiomas With Predominantly Ventricular Involvement: An Endoscopic Endonasal Series Based on Histopathological Assessment

Frontiers in Oncology ◽

10.3389/fonc.2021.740410 ◽

2021 ◽

Vol 11 ◽

Author(s):

Jun Fan ◽

Yi Liu ◽

Chaohu Wang ◽

Zhanpeng Feng ◽

Jun Pan ◽

...

Keyword(s):

Third Ventricle ◽

Preoperative Imaging ◽

Endoscopic Endonasal Surgery ◽

Pia Mater ◽

Endonasal Surgery ◽

Total Resection ◽

Endoscopic Endonasal ◽

The Third ◽

Tumor Capsule ◽

Third Ventricle Floor

ObjectiveCraniopharyngiomas (CPs) predominantly involving the third ventricle were commonly termed “intraventricular” lesions. The aim of this study was to clarify the anatomical relationship between the tumor and the third ventricle by both surgical and histological investigation.MethodsA retrospective review of primarily resected CPs by endoscopic endonasal surgery was performed. CPs with predominantly ventricular involvement were selected for study inclusion by preoperative imaging. The surgical procedure of each case was reviewed. The wholly removed tumor specimens were histologically analyzed, in all cases, to investigate the tumor–third ventricle relationship using hematoxylin and eosin, immunochemical, and immunofluorescence staining.ResultsTwenty-six primary CPs predominantly involving the third ventricle were selected from our series of 223 CPs treated by endoscopic endonasal surgery between January 2017 and March 2021. Gross-total resection was achieved in 24 (92.3%) of 26 patients, with achievement of near-total resection in the remaining patients. A circumferential layer of stretched third ventricle floor was identified surrounding the tumor capsule, which could be peeled off easily from the ventricle floor remnants at most areas of the plane of tumor attachment. Some portions of the tumor capsule tightly adhered to the third ventricle floor were removed together with the floor. A breach of various size was observed at the third ventricle floor after tumor removal in most cases, the floor remaining intact in only two cases (7.7%). Histological examination on marked portions of tumor capsule showed that the pia mater was frequently detected at most of the tumor–brain interface, except at the antero-frontal border of tumor contacting with the third ventricle floor. At this point, a layer of gliosis with various thickness was observed between the tumor and the neural tissue of the third ventricle floor.ConclusionCPs with predominantly ventricular involvement should be considered as lesions with an extraventricular, epi-pia topography rather than “intraventricular” or “subpial” topography. Accurate understanding of the relationship between the third ventricle and such tumors would predict the circumferential cleavage plane of dissection, and remind neurosurgeons of performing dissection along the safe surgical plane to achieve total tumoral resection with minimizing hypothalamic damage.

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Combined simultaneous endoscopic endonasal and microscopic transventricular surgery using a port retractor system for giant pituitary adenoma: A technical case report

Surgical Neurology International ◽

10.25259/sni_826_2020 ◽

2021 ◽

Vol 12 ◽

pp. 90

Author(s):

Erika Yamada ◽

Hiroyoshi Akutsu ◽

Hiroyoshi Kino ◽

Shuho Tanaka ◽

Hidetaka Miyamoto ◽

...

Keyword(s):

Pituitary Adenoma ◽

Obstructive Hydrocephalus ◽

Third Ventricle ◽

Tumor Resection ◽

Endoscopic Endonasal Surgery ◽

Endonasal Surgery ◽

Endoscopic Endonasal ◽

Giant Pituitary Adenoma ◽

The Third ◽

Memory Disturbance

Background: We report a case of a giant pituitary adenoma with marked extension into the third ventricle that was successfully removed using combined simultaneous endoscopic endonasal surgery (EES) and microscopic transventricular port surgery. Case Description: A 47-year-old woman, who complained of memory disturbance, had a giant pituitary adenoma with marked extension into the third ventricle that was causing obstructive hydrocephalus. She underwent combined EES and microscopic transventricular surgery using a port retractor system. Most of the tumor was resected from the EES side with assistance from the transcranial side with minimum cortical trajectory damage. The tumor was completely excised without any complications. Conclusion: For giant pituitary adenoma with marked extension into the third ventricle, combined simultaneous EES and transventricular surgery using a port retractor system is effective to maximize the extent of tumor resection while also preventing complications. Using port surgery on the transcranial side, microscopic secure dissection is possible with minimum additional cortical damage.

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