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Pterygopalatine nerve

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https://www.readbyqxmd.com/read/27833777/radio-anatomical-study-of-the-greater-palatine-canal-and-the-pterygopalatine-fossa-in-a-lebanese-population-a-consideration-for-maxillary-nerve-block
#1
Georges Aoun, Ibrahim Nasseh, Sayde Sokhn
AIM: The aim of this study was to describe the morphology of the component, greater palatine canal-pterygopalatine fossa (GPC-PPF), in a Lebanese population using cone-beam computed tomography (CBCT) technology. MATERIALS AND METHODS: CBCT images of 79 Lebanese adult patients (38 females and 41 males) were included in this study, and a total of 158 cases were evaluated bilaterally. The length and path of the GPCs-PPFs were determined, and the data obtained analyzed statistically...
2016: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/27742375/combined-isolated-trigeminal-and-facial-neuropathies-from-perineural-invasion-by-squamous-cell-carcinoma-a-case-series-and-review-of-the-literature
#2
Pierre R Bourque, Gabrielle Bourque, William Miller, John Woulfe, Jodi Warman Chardon
Perineural invasion is a targeted cellular proliferation guided by neurotrophins, rather than a simple diffusion of tumor in a path of least resistance. Invasion of cranial nerves by squamous cell carcinoma can represent an important diagnostic dilemma. It commonly presents as a distinct clinical neurological syndrome of combined isolated trigeminal and facial neuropathies. The focal cancer source may have been overlooked or remain occult. This case series illustrates diverse clinical presentations and neuroimaging challenges in four patients with squamous cell carcinoma of the cranial nerves...
October 11, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/27431342/transalar-transsphenoidal-meningoencephalocele-presenting-in-the-form-of-recurrent-meningitis-report-of-two-cases-and-discussion-of-the-diagnosis-and-treatment
#3
A Zoghlami, N Bon Mardion, F Callonnec, D Dehesdin, F Proust, J-P Marie
INTRODUCTION: Skull base meningoencephaloceles are rare congenital malformations. The two cases of transalar transsphenoidal malformation reported here differ from the classical transsphenoidal meningoencephalocele. CASE REPORTS: Case 1 was a three-and-a-half-year-old boy and case 2 was a 36-year-old man. Both cases presented with clinical features of recurrent meningitis. Surgical management of case 1 was performed via an intradural infratemporal fossa craniotomy with reoperation 2years later...
July 15, 2016: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/27209445/pterygopalatine-fossa-metastasis-with-severe-trigeminal-neuralgia-from-neuroendocrine-carcinoma-of-the-breast
#4
Taro Takanami, Yasushi Ota, Mitsuya Suzuki
A 57-year-old woman presented to our department with a 2-month history of pain and paresthesia on the left side of the face 12 years after having undergone surgery for breast cancer. We performed an endoscopic biopsy and diagnosed metastatic breast cancer to the pterygopalatine fossa. There has been no recurrence for two years since the metastatic tumor was treated by radiation therapy. A literature search shows only one case of metastatic breast cancer with severe trigeminal neuralgia located in the V2 division of the trigeminal nerve area...
May 18, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27093827/-the-progress-of-research-about-anatomy-of-posterolateral-wall-of-maxillary-sinus-in-endoscopic-surgery
#5
REVIEW
Li Gao, Xinsheng Huang
As an important landmark, the posterolateral wall of maxillary sinus can help to locate numbers of significant signs such as maxillary artery and its branches, maxillary nerve and infraorbital nerve, infratemporal fossa and pterygopalatine fossa etc. in the endoscopic surgery for paranasal sinuses and lateral skull base. This article reviewed related researches about the anatomy and endoscopic surgery of posterolateral wall of maxillary sinus.
December 2015: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/27044589/distribution-of-cocaine-and-amphetamine-regulated-transcript-cart-neuropeptide-y-npy-and-galanin-gal-in-the-pterygopalatine-ganglion-of-the-domestic-duck-anas-platyrhynchos-f-domestica
#6
Malgorzata Radzimirska, Krystyna Bogus-Nowakowska, Tadeusz Kuder, Anna Robak
INTRODUCTION: Cocaine- and amphetamine-regulated transcript (CART), neuropeptide Y (NPY) and galanin (GAL) act as neurotransmitters and neuromodulators in both the central and peripheral nervous systems. Their presence has been found in different taxonomic groups, in particular in mammals. However, only few investigators have studied these neuropeptides in the class Aves (birds). The aim of the present study was to describe the distribution of CART, NPY and GAL in the pterygopalatine ganglion (PPG) of the domestic duck (Anas platyrhynchos f...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/26943844/infraorbital-nerve-a-surgically-relevant-landmark-for-the-pterygopalatine-fossa-cavernous-sinus-and-anterolateral-skull-base-in-endoscopic-transmaxillary-approaches
#7
Ali M Elhadi, Hasan A Zaidi, Kaan Yagmurlu, Shah Ahmed, Albert L Rhoton, Peter Nakaji, Mark C Preul, Andrew S Little
OBJECTIVE Endoscopic transmaxillary approaches (ETMAs) address pathology of the anterolateral skull base, including the cavernous sinus, pterygopalatine fossa, and infratemporal fossa. This anatomically complex region contains branches of the trigeminal nerve and external carotid artery and is in proximity to the internal carotid artery. The authors postulated, on the basis of intraoperative observations, that the infraorbital nerve (ION) is a useful surgical landmark for navigating this region; therefore, they studied the anatomy of the ION and its relationships to critical neurovascular structures and the maxillary nerve (V2) encountered in ETMAs...
December 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/26887995/-surgical-anatomy-technique-and-application-of-endoscopic-endonasal-transpterygoid-approach-in-skull-base-surgery
#8
Jianfeng Liu, Jun Han, Dazhang Yang, Dandan Liu, Rui Li, Yanbing Yu, Qiuhang Zhang, Juan C Fernandez Miranda, Paul A Gardner, Carl H Snyderman
OBJECTIVE: To identify the landmarks of transpterygoid approach and to report its application in a series of cases. METHODS: Two silicon-injected adult cadaveric heads(4 sides) were dissected by performing an endoscopic endonasal transpterygoid approach after CT scanning for imaging guidance. High-quality pictures were obtained. This approach was used to treat twelve patients with skull base lesions including 3 spontaneous cerebrospinal fluid (CSF) leaks in the lateral recess of the sphenoid sinus, 2 neurofibromas and 2 Schwannomas involving the pterygopalatine fossa and infratemporal fossa, 1 dermoid cyst involving the middle fossa and infratemporal fossa, 1 invasive fungal sinusitis invading the middle fossa base, 1 basal cell adenoma in the upper parapharyngeal space, 1 chondrosarcoma in the parasellar region and 1 adenoid cystic carcinoma...
November 2015: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/26743912/trigeminal-and-sphenopalatine-ganglion-stimulation-for-intractable-craniofacial-pain-case-series-and-literature-review
#9
Arsani William, Tej Deepak Azad, Eliezer Brecher, Taissa Cherry, Ivan Bernstein, Diana M Bruce, Stacey Rohrer, Zachary Smith, Mary William, Eric Sabelman, Gary Heit, Patrick Pezeshkian, Mark Sedrak
INTRODUCTION: Facial pain is often debilitating and can be characterized by a sharp, stabbing, burning, aching, and dysesthetic sensation. Specifically, trigeminal neuropathic pain (TNP), anesthesia dolorosa, and persistent idiopathic facial pain (PIFP) are difficult diseases to treat, can be quite debilitating and an effective, enduring treatment remains elusive. METHODS: We retrospectively reviewed our early experience with stimulation involving the trigeminal and sphenopalatine ganglion stimulation for TNP, anesthesia dolorosa, and PIFP between 2010-2014 to assess the feasibility of implanting at these ganglionic sites...
March 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/26468829/ascertain-the-safe-range-from-foramen-rotundum-to-the-siphon-of-internal-carotid-artery-for-operation-through-pterygopalatine-fossa-with-thin-section-computed-tomographic-image
#10
Jie Gao, Tao Pan, Qianyan He, Yuhao Zhao, Li Li, Mushui Qiu, Hao Qu, Jingyi Shi, Sirui Wang, Kailiang Cheng, Youqiong Li
OBJECTIVE: This study aimed to ascertain the safe range from foramen rotundum to the siphon of internal carotid artery using three-dimensional reconstruction technique. METHODS: We scanned skulls of 121 volunteers to get the final results with thin-section computed tomographic image. RESULTS: The distance of AC was measured as 13.22 (3.79) mm (range, 8.33-105.67 mm; 95% CI [confidence interval], 8.55-21.39 mm). The angle to the sagittal plane was measured as 33...
October 2015: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/26412297/endoscopic-transpterygoidal-repair-of-a-large-cranial-defect-with-cerebrospinal-fluid-leak-in-a-patient-with-extensive-osteoradionecrosis-of-the-skull-base-case-report-and-technical-note
#11
Y Brand, E Lim, V Waran, N Prepageran
BACKGROUND: Endoscopic endonasal techniques have recently become the method of choice in dealing with cerebrospinal fluid leak involving the anterior cranial fossa. However, most surgeons prefer an intracranial approach when leaks involve the middle cranial fossa. This case report illustrates the possibilities of using endoscopic techniques for cerebrospinal fluid leaks involving the middle fossa. CASE REPORT: A 37-year-old male patient presented with multiple areas of cranial defect with cerebrospinal fluid leak due to osteoradionecrosis following radiation for nasopharyngeal carcinoma 4 years earlier...
December 2015: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/26293186/aberrant-facial-flushing-following-monobloc-fronto-facial-distraction
#12
Alistair R M Cobb, Michael Vourvachis, Jahangir Ahmed, Michelle Wyatt, David Dunaway, Richard Hayward
BACKGROUND: Patients with syndromic forms of craniosynostosis may experience functional problems such as raised intracranial pressure, proptosis, obstructive sleep apnoea and failure to thrive. The monobloc fronto-facial advancement with osteogenic distraction is increasingly used to correct these functional problems in one procedure as well as improve appearance. The authors report the phenomenon of post operative aberrant facial flushing - an unusual and previously unreported complication of the procedure...
October 2015: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/26141365/endoscopic-endonasal-resection-of-trigeminal-schwannomas
#13
REVIEW
Shaan M Raza, Muhamad A Amine, Vijay Anand, Theodore H Schwartz
The surgical management of trigeminal schwannomas (TNs) entails the use of a variety of cranial base approaches for their effective surgical management. Although an extended middle fossa or posterior petrosal approach may be more appropriate for disease with primarily posterior fossa involvement, the expanded endoscopic approaches are suited for tumors with predominately middle fossa and/or extracranial involvement along the V2 and V3 divisions and limited posterior fossa extension. The endoscopic endonasal resection of TNs within the middle fossa, pterygopalatine fossa, and infratemporal fossa is reviewed in this article with a brief discussion of reported outcomes...
July 2015: Neurosurgery Clinics of North America
https://www.readbyqxmd.com/read/26077959/divided-maxillary-artery-in-relation-to-the-lateral-pterygoid-muscle
#14
R Claire Aland, Vivien Shaw
We describe an anatomical variation of the right maxillary artery. The variation loops deep, giving off a middle meningeal artery with an extremely short extracranial segment, then bifurcates into unequal branches. The smaller branch passes superficial to the lateral pterygoid head and distributes primarily to the masticatory muscles. The larger partially pierces the lateral pterygoid lower head, re-emerges superficially, branches again and passes into the pterygopalatine fossa. The larger lies superficial to the lingual and inferior alveolar nerves and deep to the buccal nerve...
March 2016: Anatomical Science International
https://www.readbyqxmd.com/read/26076546/case-report-fractured-needle-in-the-pterygomandibular-space-following-administration-of-an-inferior-dental-nerve-block
#15
Edmund Bailey, Jeethendra Rao, Alka Saksena
Fortunately, needle fracture is a rare complication following the administration of dental local anaesthetic. We present a case of needle fracture following administration of an inferior dental nerve block. The fractured needle was retrieved successfully under general anaesthetic. We also provide some suggestions on how to prevent needle fracture, and advice on how to manage the situation should it arise. Clinical Relevance: Dental practitioners are the largest user group of local anaesthesia in the UK. It is important that practitioners are aware of the risks to the patient of needle fracture, how to minimize the risk of this occurring and be aware of how to manage the situation should it arise...
April 2015: Dental Update
https://www.readbyqxmd.com/read/26000688/ultrasound-guided-pulsed-radiofrequency-application-via-the-pterygopalatine-fossa-a-practical-approach-to-treat-refractory-trigeminal-neuralgia
#16
Antoun Nader, Bernard R Bendok, Jeremy J Prine, Mark C Kendall
Although pharmacological therapy is the primary treatment modality for trigeminal neuralgia associated pain, ineffective analgesia and dose limiting side effects often prompt patients to seek alternative pharmacological solutions such as interventional nerve blockade. Blockade of the Gasserian ganglion or its branches is an effective analgesic procedure for trigeminal neuralgia, traditionally performed using fluoroscopy or CT imaging. Ultrasonography allows point of care and real time visualization of needle placement within the surrounding anatomical structures...
May 2015: Pain Physician
https://www.readbyqxmd.com/read/26000687/sphenopalatine-ganglion-electrical-nerve-stimulation-implant-for-intractable-facial-pain
#17
Foad Elahi, Chandan G Reddy
Persistent idiopathic facial pain can be extremely difficult and significantly challenging to manage for the patient and the clinician. Pharmacological treatment of these painful conditions is not always successful. It has been suggested that the autonomic reflex plays an important role in the pathophysiology of headaches and facial neuralgia. The key structure in the expression of cranial autonomic symptoms is the sphenopalatine ganglion (SPG), also known as the pterygopalatine ganglion. The role of the SPG in the pathophysiology of headaches and facial pain has become clearer in the past decade...
May 2015: Pain Physician
https://www.readbyqxmd.com/read/25828648/long-term-efficacy-of-a-double-blind-placebo-controlled-randomized-study-for-repetitive-sphenopalatine-blockade-with-bupivacaine-vs-saline-with-the-tx360-device-for-treatment-of-chronic-migraine
#18
RANDOMIZED CONTROLLED TRIAL
Roger K Cady, Joel Saper, Kent Dexter, Ryan J Cady, Heather R Manley
BACKGROUND: This study aims to determine if repetitive sphenopalatine ganglion (SPG) blockades with 0.5% bupivacaine delivered with the Tx360 device results in long-term improvement in chronic migraine (CM). The SPG is a small concentrated structure of neuronal tissue that resides within the pterygopalatine fossa in close proximity to the sphenopalatine foramen and is innervated by the maxillary division of the trigeminal nerve. In a previous article, these authors reported repetitive SPG blockades with 0...
April 2015: Headache
https://www.readbyqxmd.com/read/25795191/three-dimensional-computed-tomographic-evaluation-of-bilateral-sagittal-split-osteotomy-lingual-fracture-line-and-le-fort-i-pterygomaxillary-separation-in-orthognathic-surgery-using-cadaver-heads-ultrasonic-osteotome-versus-conventional-saw
#19
COMPARATIVE STUDY
Sophie Dammous, Quentin Dupont, Roland Gilles
PURPOSE: The purpose of this study was to observe the quality of the fracture line on the lingual side of the mandible after sagittal split osteotomy and the quality of pterygomaxillary separation after Le Fort I osteotomy using the BoneScalpel ultrasonic osteotome. MATERIALS AND METHODS: Bimaxillary procedures, according to the standard protocol, were performed using 10 fresh cadaver heads. The ultrasonic osteotome was used in the study group, and a reciprocating saw was used in the control group...
June 2015: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/25759923/a-new-method-of-locating-foramen-rotundum-and-its-anatomic-study
#20
Ye Cheng, Hongquan Yu, Songbai Xu, Haiyang Xu, Siwen Zhang, Qingchun Mu, Yunqian Li, Gang Zhao
PURPOSE: The purpose of this study is to provide a new method to locate the foramen rotundum (FR) based on the structures in the wall of sphenoid. MATERIALS AND METHODS: Computed tomographic angiography images of 172 FR in adults and 10 bony specimens were reviewed. The measurement was on coronal, sagittal, and axial planes after multiplanar reconstruction. The diameter, length, and direction of FR were measured. The middle lowest point of sellar region, the sagittal midline, and the bottom of sphenoid sinus were selected as the landmarks to locate the FR...
March 2015: Journal of Craniofacial Surgery
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