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https://www.readbyqxmd.com/read/29747249/-the-surgical-management-of-nasal-skull-base-schwannoma-under-endonasal-endoscope-a-retrospective-review-of-52-cases
#1
L Yang, W D Zhao, Q Liu, H K Zhang, D H Wang
Objective: To discuss the surgical technique and outcome of nasal skull base schwannoma treated under endonasal endoscope. Methods: Fifty-two patients with nasal skull base nonvestibular schwannoma were treated under endonasal endoscope from May 2006 to June 2017 in Shanghai E&ENT Hospital. Of the patients, there were 21 men and 31 women. The age of the patients ranged from 33 to 71 years.Schwannoma mainly came from trigeminal nerve.Clinical symptoms included facial numbness, facial pain, nasal obstruction, headache, hypopsia, diplopia and tinnitus...
April 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29709753/endoscopic-endonasal-approach-to-the-anteromedial-temporal-fossa-and-mobilization-of-the-lateral-wall-of-the-cavernous-sinus-through-the-inferior-orbital-fissure-and-v1-v2-corridor-an-anatomical-study-and-clinical-considerations
#2
Shunya Hanakita, Wei-Chieh Chang, Kentaro Watanabe, Daniel Ronconi, Moujahed Labidi, Hun-Ho Park, Kenichi Oyama, Anne-Laure Bernat, Sebastien Froelich
OBJECTIVE: The aim of this study was to identify key anatomical landmarks useful in gaining access to the anteromedial temporal region via the corridor formed by the inferior orbital fissure (IOF), the ophthalmic branch (V1), and the maxillary branch (V2) of the trigeminal nerve via the EEA. METHODS: An anatomical dissection of six cadaver heads was performed to confirm the feasibility and applicability of the EEA for accessing the anteromedial temporal region. RESULTS: Following middle turbinectomy, the lateral recess of the sphenoid sinus was opened, the orbital apex exposed, and the posterior wall of the maxillary sinus was removed, in sequence...
April 27, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29677030/a-cadaveric-study-of-ultrasound-guided-maxillary-nerve-block-via-the-pterygopalatine-fossa-a-novel-technique-using-the-lateral-pterygoid-plate-approach
#3
Wirinaree Kampitak, Tanvaa Tansatit, Yasuyuki Shibata
BACKGROUND AND OBJECTIVES: This study aimed to describe and assess the accuracy and feasibility of a novel technique for ultrasound-guided maxillary nerve block using the lateral pterygoid plate (LPP) approach via the pterygopalatine fossa (PPF) in a soft cadaveric model. METHODS: Ten soft cadavers were studied. The curved array ultrasound transducer probe was applied over 1 side of the face of the cadavers in the open-mouth posture. It was placed transversely below the zygomatic arch for identifying the border of the maxillary tuberosity and the LPP...
April 19, 2018: Regional Anesthesia and Pain Medicine
https://www.readbyqxmd.com/read/29669195/early-fetal-development-of-the-otic-and-pterygopalatine-ganglia-with-special-reference-to-the-topographical-relationship-with-the-developing-sphenoid-bone
#4
Masahito Yamamoto, Kwang Ho Cho, Gen Murakami, Shinichi Abe, Jose Francisco Rodríguez-Vázquez
The otic and pterygopalatine ganglia are located close to the greater wing (alisphenoid) of the sphenoid bone and many researchers have noted nerves connecting these ganglia in human embryos. The greater wing (alisphenoid) arises from the cartilaginous ala temporalis independently of the lesser wing, but no topographical changes between this cartilage and nerve elements have been demonstrated. We examined histological sections of 20 human embryos and fetuses from 6 to 15 weeks of development (WD). At 6 WD, the ala temporalis, the alar process and ganglia were all identified as a single, undifferentiated cell mass...
April 18, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29551375/prosthetic-rehabilitation-for-a-patient-treated-for-embryonal-rhabdomyosarcoma
#5
Korbinian Benz, Carla Kozmacs, Andree Piwowarczyk, Jochen Jackowski
A female patient, now aged 17 years, was diagnosed with rhabdomyosarcoma (RMS) in the right pterygopalatine fossa when she was 3 years old. The RMS was successfully treated by excision, but the subsequent radiation and polychemotherapy resulted in the complete anesthesia of the distribution area of the right trigeminal nerve and loss of vision in the right eye. The patient also experienced pain in the mandibular joints and masticatory muscles. Panoramic radiographs displayed a multiple agenesia of the permanent teeth and underdeveloped apices...
March 15, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29510274/an-alternative-endoscopic-anterolateral-route-to-meckel-s-cave-an-anatomical-feasibility-study-using-a-sublabial-transmaxillary-approach
#6
Kaan Yağmurlu, Michael A Mooney, Kaith K Almefty, Baran Bozkurt, Necmettin Tanriover, Andrew S Little, Mark C Preul
OBJECTIVE: To describe an endoscopic anterolateral surgical route to the lateral portion of Meckel's cave. METHODS: A sublabial transmaxillary transpterygoid approach was performed in 6 cadaveric heads (12 sides). A craniectomy was drilled between the foramen rotundum (FR) and foramen ovale (FO) with defined borders. Extradural dissection was performed up to the V2-V3 junction of the trigeminal ganglion. The working space was analyzed using anatomical measurements...
March 3, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29497328/managing-cluster-headache-with-sphenopalatine-ganglion-stimulation-a-review
#7
REVIEW
Denys Fontaine, Serena Santucci, Michel Lanteri-Minet
Cluster headache (CH) is a primary headache and considered as one of the worst pains known to man. The sphenopalatine ganglion (SPG) plays a pivotal role in cranial autonomic symptoms associated with pain. Lesioning procedures involving the SPG and experimental acute SPG stimulation have shown some degree of efficacy with regard to CH. A neuromodulation device, chronically implanted in the pterygopalatine fossa, has been specifically designed for acute on-demand SPG stimulation. In a pilot placebo-controlled study in 28 patients suffering from refractory chronic CH, alleviation of pain was achieved in 67...
2018: Journal of Pain Research
https://www.readbyqxmd.com/read/29447826/impact-of-age-on-the-anatomy-of-the-pediatric-pterygopalatine-fossa-and-its-relationship-to-the-suprazygomatic-maxillary-nerve-block
#8
Alexander P Marston, Glenn Merritt, Jonathan M Morris, Shelagh A Cofer
OBJECTIVES: The suprazygomatic maxillary nerve block is associated with improved post-operative pain management after select craniofacial surgical procedures. This study's objective is to better define the impact of pediatric facial skeletal growth on techniques for accessing the pterygopalatine fossa (PPF). METHODS: Pediatric patients with prior thin-slice maxillofacial computed tomography imaging were identified in an institutional radiology database. Aquarius image-processing software (Ver...
February 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29440818/ultrasound-guided-real-time-pterygopalatine-block-for-analgesia-in-an-oral-cancer-patient
#9
Nishkarsh Gupta, Rohini Dattatri, Sachidanand Jee Bharati, Sushma Bhatnagar
Oral cancers are one of the most common cancers in India. These patients have pain during the course of the disease. Various drugs including opioid and nonsteroidal anti-inflammatory drug have been used to manage pain. However, these are associated with side effects such as constipation and vomiting. An early interventional block may decrease the requirement for analgesics and improve the overall quality of life. We describe a case of oral carcinoma successfully managed with ultrasound-guided pterygopalatine block...
January 2018: Indian Journal of Palliative Care
https://www.readbyqxmd.com/read/29420383/primitive-squamous-cell-carcinoma-of-pterygopalatine-fossa
#10
Olivier Mauvais, Cécile Badet, Laetitia Lestrade, Laurent Tavernier
Primitive tumors of pterygopalatine fossa (PPF) are often benign tumors or extension of a malignant sinonasal tract. Primitive tumors may rarely occur in PPF.The authors present a 71-year-old woman with a 6-month history of left cranial nerve palsy. Magnetic resonance imaging and positron emission tomography-computed tomography showed an enhancing isolated lesion at the PPF. A transmaxillary biopsy was performed, leading to diagnosis of primitive squamous cell carcinoma. The patient underwent radiotherapy treatment...
February 7, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29404237/juvenile-angiofibroma-current-management-strategies
#11
REVIEW
Ahmad Safadi, Alberto Schreiber, Dan M Fliss, Piero Nicolai
Juvenile angiofibroma (JA) is a benign, highly vascular tumor which is diagnosed on the basis of clinical and imaging features. It has a characteristic pattern of spread commonly involving the pterygopalatine fossa and pterygoid base. The mainstay of treatment is surgery, while radiotherapy is rarely used for the treatment of recurrent lesion. Endoscopic endonasal surgery is currently the treatment of choice for small to intermediate size JAs, and is feasible even for advanced lesions; however, this should only be practiced in well-experienced centers...
February 2018: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/29393751/endoscopic-anterior-transmaxillary-transalisphenoid-approach-to-meckel-s-cave-and-the-middle-cranial-fossa-an-anatomical-study-and-clinical-application
#12
Huy Q Truong, Xicai Sun, Emrah Celtikci, Hamid Borghei-Razavi, Eric W Wang, Carl H Snyderman, Paul A Gardner, Juan C Fernandez-Miranda
OBJECTIVE Multiple approaches have been designed to reach the medial middle fossa (for lesions in Meckel's cave, in particular), but an anterior approach through the greater wing of the sphenoid (transalisphenoid) has not been explored. In this study, the authors sought to assess the feasibility of and define the anatomical landmarks for an endoscopic anterior transmaxillary transalisphenoid (EATT) approach to Meckel's cave and the middle cranial fossa. METHODS Endoscopic dissection was performed on 5 cadaver heads injected intravascularly with colored silicone bilaterally to develop the approach and define surgical landmarks...
February 2, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29369179/targeted-next-generation-sequencing-of-malignant-peripheral-nerve-sheath-tumor-of-the-pterygopalatine-fossa-with-intracranial-metastatic-recurrence
#13
Xinjie Bao, Xiangyi Kong, Chengxian Yang, Huanwen Wu, Wenbin Ma, Renzhi Wang
Malignant peripheral nerve sheath tumor (MPNST) is an uncommon neoplasm that rarely involves the head and neck region. Intracranial MPNSTs unrelated to cranial nerves are highly malignant tumors with poor overall survival, probably because of infiltrating growth into surrounding brain tissue. The pathogenesis of MPNST remains unclear. There are no conclusive explanations for the mechanisms underlying the initiation, progression, and metastasis of MPNST. In this paper, we describe a case of MPNST in the pterygopalatine fossa with intracranial metastatic recurrence and review related literatures...
January 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29350272/endoscopic-endonasal-approach-for-trigeminal-schwannomas-our-experience-of-39-patients-in-10-years
#14
Lu Yang, Li Hu, Weidong Zhao, Huankang Zhang, Quan Liu, Dehui Wang
BACKGROUND: The anatomical locations involved in trigeminal schwannomas (TSs) are quite complex. The endoscopic endonasal approach provides a minimal damage access corridor to both anterior and middle skull base for surgery. Given the nerve function recovery and postoperative neurological deterioration varied in different reports, the author demonstrates his surgery tips and the functional outcomes under endoscopic surgery in one single institution. METHODS: A retrospective review of patients with TSs was undertaken to assess the outcome of endoscopic surgery from 2006 to 2016...
March 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29339322/endoscopic-endonasal-craniofacial-surgery-for-recurrent-skull-base-meningiomas-involving-the-pterygopalatine-fossa-the-infratemporal-fossa-the-orbit-and-the-paranasal-sinus
#15
Masahiro Shin, Masaaki Shojima, Kenji Kondo, Hirotaka Hasegawa, Shunya Hanakita, Akihiro Ito, Taichi Kin, Nobuhito Saito
OBJECTIVE: Skull base meningiomas carry a nonnegligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (World Health Organization [WHO] grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III)...
April 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29274037/depicting-the-pterygopalatine-ganglion-on-3-tesla-magnetic-resonance-images
#16
Daniel Fossum Bratbak, Mari Folvik, Ståle Nordgård, Lars Jacob Stovner, David W Dodick, Manjit Matharu, Erling Tronvik
PURPOSE: The pterygopalatine ganglion has yet not been identified on medical images in living humans. The primary aim of this study was to evaluate whether the pterygopalatine ganglion could be identified on 3 T MR imaging. METHODS: This study was performed on medical images of 20 Caucasian subjects on both sides (n = 40 ganglia) with an exploratory design. 3 T MR images were assessed by two physicians for the presence and size of the pterygopalatine ganglion...
December 22, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/29259024/inclusion-criteria-update-for-the-rat-intraluminal-ischaemic-model-for-preclinical-studies
#17
Héctor Fernández-Susavila, Ramón Iglesias-Rey, Antonio Dopico-López, María Pérez-Mato, Tomás Sobrino, José Castillo, Francisco Campos
Proper occlusion of the medial cerebral artery, as determined by laser Doppler monitoring, during cerebral ischaemia in rat models is an important inclusion criterion in experimental studies. However, successful occlusion of the artery does not always guarantee a reproducible infarct volume, which is crucial for validating the efficacy of new protective drugs. In a rat intraluminal ischaemic model, laser Doppler monitoring alone was compared with laser Doppler monitoring in combination with magnetic resonance angiography (MRA) and diffusion-weighted imaging (DWI)...
December 19, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29238675/is-pterygopalatine-fossa-injection-with-adrenaline-an-effective-technique-for-better-surgical-field-in-fess
#18
Vijendra S Shenoy, Nidhin Prakash, Panduranga M Kamath, Raghavendra A Rao, D Deviprasad, Vishnu Prasad, Vikranth Kamboj, Lavan Kumar Borra
Functional endoscopic sinus surgery (FESS) is one of most common surgeries in otorhinolaryngology practice. It is done in the narrow confines of the nasal cavity. Bleeding into the surgical field is a major problem faced by endoscopic surgeons. To assess the effectiveness of pterygopalatine fossa infiltration with lignocaine and adrenaline in controlling surgical field bleeding during endoscopic sinus surgery. A randomized blinded study was done among 68 patients who underwent FESS. Infiltration with 2% lignocaine with 1:80,000 adrenaline was given only on one side and the surgeon was blinded as to which side was infiltrated and he was asked to assess the surgical field using a standard scale...
December 2017: Indian Journal of Otolaryngology and Head and Neck Surgery
https://www.readbyqxmd.com/read/29209151/endoscopic-repair-of-lateral-sphenoid-encephaloceles-a-case-series
#19
Mitchell R Gore
Background: Lateral sphenoid encephaloceles present a surgical challenge. These encephaloceles may be difficult to access given their lateral location and proximity to the neural and vascular structures of the sphenoid floor, pterygopalatine fossa, and lateral and superior sphenoid walls. Additionally, many patients have idiopathic intracranial hypertension, increasing the risk of recurrence. When untreated or undiscovered, these encephaloceles increase the risk of meningitis. Methods: All consecutive endoscopic repairs of lateral sphenoid encephaloceles by a single surgeon from 2012 to 2017 were analyzed for method of repair, complications, and recurrence rate...
2017: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/29196198/neurosurgical-modeling-of-retinal-ischemia-reperfusion-injury
#20
Alireza P Shabanzadeh, Philippe M D'Onofrio, Philippe P Monnier, Paulo D Koeberle
BACKGROUND: A reliable model of ischemia-reperfusion is required to evaluate the efficacy and safety of neuroprotective therapies for stroke. We present a novel reproducible pterygopalatine-ophthalmic artery ligation model of ischemia-reperfusion injury in the retina. METHODS: Rats were subjected to ophthalmic artery/meningeal sheath ligation (OAML-standard method) or clamping of the pterygopalatine-ophthalmic artery (OAC-new method) for 30 minutes. Retinal ganglion cell (RGC) survival was assessed by prelabeling with FluoroGold (FG) (Santa Cruz Biotechnology, CA, USA) and RNA-binding protein with multiple splicing (RBPMS) at 14 days after ischemia, and all results were compared with a sham group (n = 7 in each group)...
April 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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