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https://www.readbyqxmd.com/read/29218256/intracranial-anatomical-triangles-a-comprehensive-illustrated-review
#1
REVIEW
Doniel Drazin, Joy Mh Wang, Fernando Alonso, Daxa M Patel, Andre Granger, Mohammadali M Shoja, Marios Loukas, Rod J Oskouian, R Shane Tubbs
There are multiple anatomical triangles of the skull base. However, to our knowledge, there has been no comprehensive review of these geometric landmarks. To allow for a safe and consistent approach to lesions of the skull base such as those near the internal carotid artery, internal acoustic meatus, and cavernous sinus, a comprehensive review of the variations with illustrations is required. This article provides an overview of the anatomical borders, dimensions, and surgical implications as well as illustrations of the major skull base triangles...
October 4, 2017: Curēus
https://www.readbyqxmd.com/read/29215446/nasal-septal-cavernous-hemangioma
#2
Ahmet Baki
Hemangiomas are benign tumors originating from the skin, mucosa, muscle, gland, and vascular tissue in the bone. Although it is common in the head and neck region, it is rarely seen in the nasal cavity and paranasal sinuses. Histologically capillary, cavernous, and mixed types are present, the most common is cavernous-type hemangioma. Cavernous hemangiomas in the nasal cavity, generally originated from the lateral nasal wall, cause symptoms as nasal obstruction and epistaxis. In the author's patient, cavernous hemangioma was originated from the nasal septum, where rarely seen...
December 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29212232/the-effects-of-fk1706-on-nerve-regeneration-and-bladder-function-recovery-following-an-end-to-side-neurorrhaphy-in-rats
#3
Wansheng Gao, Xiangfei He, Yunlong Li, Jianguo Wen
Background: Immunophilin ligands are neuroregenerative agents binding to FK506 binding proteins, by which stimulate recovery of neurons in a variety of injury nerves. FK1706 is a novel immunophilin ligand which has neuroprotective and neuroregenerative effects but without immunosuppressive activity. At present, most reports about FK1706 in ameliorating nerve injury and functional recovery are limited to cavernous nerve injury and erectile function recovery. This study aimed to demonstrate the effects of FK1706 on nerve regeneration and bladder function recovery following an end-to-side neurorrhaphy in rat models...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29205798/carotid-cavernous-fistula-after-endovascular-intervention-for-chronic-carotid-artery-total-occlusion
#4
Chih-Fan Yeh, Yin-Hsien Chen, Mao-Shin Lin, Ching-Chang Huang, Chi-Sheng Hung, Shih-Wei Meng, Chih-Kuo Lee, Hsien-Li Kao
BACKGROUND AND PURPOSE: In addition to head trauma and cranial surgery, endovascular intervention for chronic carotid artery occlusion (CAO) may also result in carotid-cavernous fistula (CCF). The management and prognosis of iatrogenic CCF during CAO recanalization have never been well described and discussed in the literature. MATERIALS AND METHODS: We conducted a retrospective analysis for CAO recanalization attempts in National Taiwan University Hospital and affiliated hospitals...
December 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29203189/inhibition-of-jun-n-terminal-kinase-jnk-improves-erectile-function-by-alleviation-of-cavernosal-apoptosis-in-a-rat-model-of-cavernous-nerve-injury
#5
Juhyun Park, Ji Sun Chai, Soo Woong Kim, Jae-Seung Paick, Min Chul Cho
OBJECTIVE: To determine whether JNK inhibition could alleviate erectile dysfunction (ED) through suppressing cavernosal apoptosis in a rat model of carvernosal nerve crush injury (CNCI), thereby providing potential therapeutic strategy for alleviating post-radical prostatectomy (RP) ED. MATERIALS AND METHODS: Fifty-six 11-week-old male Sprague-Dawley rats were categorized equally into the following four groups: 1) sham surgery (S), 2) CNCI (I), 3) CNCI treated with low-dose JNK inhibitor (L), and 4) CNCI treated with high-dose JNK inhibitor (H)...
December 1, 2017: Urology
https://www.readbyqxmd.com/read/29201856/complete-reversal-of-diffusion-restriction-after-treatment-of-traumatic-carotid-cavernous-fistula
#6
Jeong Hyun Shim, Inbo Han
A 15-year-old man presented with stupor following a motorcycle traffic accident. The patient was diagnosed with a traumatic left carotid cavernous fistula (CCF) with pseudoaneurysm of the left internal carotid artery. Brain magnetic resonance imaging (MRI) showed transiently restricted diffusion in the left centrum semiovale white matter and lower temporo-occipital area extending to the splenium of the corpus callosum, with high signal intensity on diffusion-weighted imaging. On the 35th day of admission, the patient had complete neurological recovery and a follow-up brain MRI revealed complete resolution of the lesions in the left centrum semiovale and splenium of the corpus callosum...
October 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29199381/neurosurgical-management-of-cavernous-malformations-located-at-the-foramen-of-monro
#7
Chengjun Wang, Meng Zhao, Xiaofeng Deng, Jia Wang, Qingming Shu, Zhongli Jiang, Jizong Zhao
Cavernous malformations (CMs) located at the foramen of Monro (FM) are relatively rare benign vascular malformations. Knowledge of FM CM is poor. The aims of this study were to describe the incidence, clinical presentation, radiological features, surgical approaches, and neurological outcomes for FM CM patients and to discuss the treatment strategy for this disease. We present a series of nine FM CM patients (four males, five females; mean age 29.3 years) who were treated at a single neurosurgical center. FM CM accounted for 0...
December 4, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/29198888/salvage-therapy-for-brain-arteriovenous-malformations-after-failure-of-gamma-knife-stereotactic-radiosurgery
#8
Kai Quan, Xuqun Tang, Jianping Song, Xiancheng Chen, Yanlong Tian, Peixi Liu, Yuan Shi, Zixiao Yang, Yinjun Liu, Feng Zhou, Li Pan, Wei Zhu
OBJECTIVE: The aim of this study was to investigate delayed complications in brain arteriovenous malformation (BAVM) patients after gamma knife stereotactic radiosurgery (GKRS) and to present the salvage therapy experiences of BAVM patients with radiation-induced changes (RICs) or intracranial hemorrhage (ICH). METHODS: This cohort consisted of 44 BAVM patients who underwent failed GKRS between 2000 and 2015. These patients were further divided into an RIC group (23 patients) and an ICH group (21 patients) based on their post-GKRS complications...
November 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29198509/testosterone-deficiency-causes-endothelial-dysfunction-via-elevation-of-asymmetric-dimethylarginine-and-oxidative-stress-in-castrated-rats
#9
Tomoya Kataoka, Yuji Hotta, Yasuhiro Maeda, Kazunori Kimura
BACKGROUND: Testosterone is believed to mediate the penile erectile response by producing adequate nitric oxide; therefore, testosterone deficiency results in erectile dysfunction through decreased nitric oxide bioavailability. However, the mechanisms underlying endothelial dysfunction in testosterone deficiency remain unclear. AIM: To investigate the mechanism of endothelial dysfunction in a rat model of testosterone deficiency. METHODS: Rats were distributed into 3 groups: castrated (Cast), castrated and supplemented with testosterone (Cast + T), and sham (Sham)...
December 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29197946/first-large-genomic-inversion-in-familial-cerebral-cavernous-malformation-identified-by-whole-genome-sequencing
#10
Stefanie Spiegler, Matthias Rath, Sabine Hoffjan, Philipp Dammann, Ulrich Sure, Axel Pagenstecher, Tim Strom, Ute Felbor
Familial cerebral cavernous malformations (CCMs) predispose to seizures and hemorrhagic stroke. Molecular genetic analyses of CCM1, CCM2, and CCM3 result in a mutation detection rate of up to 98%. However, only whole genome sequencing (WGS) in combination with the Manta algorithm for analyses of structural variants revealed a heterozygous 24 kB inversion including exon 1 of CCM2 in a 12-year-old boy with familial CCMs. Its breakpoints were fine-mapped, and quantitative analysis on RNA confirmed reduced CCM2 expression...
December 2, 2017: Neurogenetics
https://www.readbyqxmd.com/read/29193866/revisit-the-cavernous-sinus-from-fetus-to-adult-new-and-old-data
#11
REVIEW
Maggie Sm Chow, Sharon L Wu, Vivian Hui, Tony Ch Chow, D T Yew
This paper highlighted three advances in the study of the cavernous sinus: 1) the initial formation of the sinus reticulum in early development of the sphenoid bone before ossification 2) extension of reticulum of the sinus and connection with other venules and 3) the cavernous sinus and the nerves evolved inside this sinus during gestation, for example, the trigeminal nerve already formed bundles of motor and parasympathetic components during fetal development. This ontogenetic study further confirmed the cavernous sinus is not a single or a dual set of sinuses, but a group of extensions of venous sinuses or sinusoids...
November 28, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29192863/precipitating-hydrophobic-injectable-liquid-embolization-of-intracranial-vascular-shunts-initial-experience-and-technical-note
#12
Shriram Varadharajan, Arvinda Hanumanthapura Ramalingaiah, Jitender Saini, Arun Kumar Gupta, B Indira Devi, Ullas V Acharya
Precipitating hydrophobic injectable liquid (PHIL) is a newly available liquid embolic agent for endovascular therapy. It is nonadhesive and composed of a biocompatible polymer dissolved in dimethyl sulfoxide solvent and bonded covalently with iodine. In this report, the authors present their preliminary experience using PHIL in the treatment of intracranial vascular shunts. Between July 2015 and December 2015, 11 patients underwent endovascular embolization using the PHIL embolic agent. Five patients had arteriovenous malformations, 4 had dural arteriovenous fistulas, 1 patient had a carotid-cavernous fistula, and 1 patient had a pial arteriovenous fistula...
December 1, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29191527/an-optic-nerve-meningioma-mimicking-a-cavernous-hemangioma
#13
A Savignac, A Lecler
No abstract text is available yet for this article.
November 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29189199/intrasellar-cavernous-hemangioma-presenting-as-pituitary-adenoma-a-report-of-two-cases-and-review-of-the-literature
#14
Sumit Das, Lee-Cyn Ang, David Ramsay
Cavernous hemangioma in the sellar region is quite rare with only a handful of cases being reported in the English literature. Its clinical manifestations and imaging characteristics can mimic those of a pituitary adenoma. We report two cases of recurrent sellar lesions, both of which were clinically suspected of being pituitary adenomas but histologically confirmed as cavernous hemangiomas. The first case is of a 67-year-old female whose initial resection was diagnosed as "venous angioma". Neuroimaging performed 27 years later demonstrated significant growth of the lesion involving the right cavernous sinus and encasing the right internal carotid artery...
November 30, 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/29186608/supratonsillar-approach-to-deep-cerebellar-cavernous-malformations-near-the-dentate-nucleus-3-dimensional-operative-video
#15
Arnau Benet, Jae Seung Bang, Halima Tabani, Ali Tayebi Meybodi, Michael T Lawton
No abstract text is available yet for this article.
December 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29186607/benefits-and-limitations-of-indocyanine-green-fluorescent-image-guided-surgery-for-spinal-intramedullary-tumors
#16
Toshihiro Takami, Kentaro Naito, Toru Yamagata, Nobuyuki Shimokawa, Kenji Ohata
BACKGROUND: Intraoperative image guidance using near-infrared indocyanine green videoangiography (ICG-VA) has been used to provide real-time angiographic images during vascular or brain tumor surgery, and it is also being used for spine surgery. OBJECTIVE: To further investigate the benefits and limitations of ICG-VA image-guided surgery for spinal intramedullary tumors through retrospective study. METHODS: ICG-VA was used in 48 cases that were treated surgically over the past 5 yr...
December 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29183173/evaluation-for-shunted-pouches-of-cavernous-sinus-dural-arteriovenous-fistula-and-the-treatment-outcome-of-transvenous-embolization
#17
Masaki Sato, Takashi Izumi, Noriaki Matsubara, Masahiro Nishihori, Shigeru Miyachi, Toshihiko Wakabayashi
Background This study aimed to evaluate the detailed location and the number (single or multiple) of cavernous sinus dural arteriovenous fistula (CSDAVF) shunted pouches as well as the relationship between the characteristics of shunted pouch(es) and the treatment outcome of transvenous embolization for CSDAVF. Methods A total of 23 consecutive patients with CSDAVFs who underwent angiogram and transvenous embolization were retrospectively analyzed. Shunted pouches were assessed using three-dimensional angiogram and multiplanar reformatted image obtained from the rotational angiogram data...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29180575/radiation-induced-spinal-nerve-root-cavernous-malformations-as-a-rare-cause-of-radiculopathy
#18
Komal Rastogi, Christopher J Klein, John E O'Toole, Miral D Jhaveri, Rabia Malik
No abstract text is available yet for this article.
November 28, 2017: Neurology
https://www.readbyqxmd.com/read/29175574/surgical-management-and-long-term-seizure-outcome-after-surgery-for-temporal-lobe-epilepsy-associated-with-cerebral-cavernous-malformations
#19
Peng-Fan Yang, Jia-Sheng Pei, Yan-Zeng Jia, Qiao Lin, Hui Xiao, Ting-Ting Zhang, Zhong-Hui Zhong
OBJECTIVE: Operative strategies for cerebral cavernous malformation (CCM)-associated temporal lobe epilepsy and timing of surgical intervention have continued under debate. This study aimed to establish an algorithm to evaluate efficacy of surgical intervention strategies, which maximizes positive surgical outcomes and minimizes post-surgical neurological deficits. METHODS: 47 subjects having undergone operation for CCM-associated temporal lobe epilepsy were retrospectively reviewed...
November 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29174523/transvenous-coil-embolization-for-the-treatment-of-carotid-cavernous-fistula-after-pipeline-placement-a-case-report
#20
Ryuta Nakae, Masaya Nagaishi, Issei Takano, Yoshihiro Tanaka, Akio Hyodo, Kensuke Suzuki
The Pipeline embolization device (PED), a type of flow diverter, has become an appealing alternative treatment option for large or giant and wide-necked intracranial aneurysms. Carotid cavernous fistula (CCF) resulting from delayed aneurysmal rupture is a rare complication of PED placement with unknown pathophysiology. Here, we describe a case of CCF resulting from aneurysmal rupture following PED placement, and present the details of treatment by transvenous coil embolization. An 81-year-old woman was referred to our hospital for treatment of an 18...
November 22, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
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