• Title/Summary/Keyword: Neurovascular

Search Result 229, Processing Time 0.023 seconds

Loss of Integrity: Impairment of the Blood-brain Barrier in Heavy Metal-associated Ischemic Stroke

  • Kim, Jeong-Hyeon;Byun, Hyeong-Min;Chung, Eui-Cheol;Chung, Han-Young;Bae, Ok-Nam
    • Toxicological Research
    • /
    • v.29 no.3
    • /
    • pp.157-164
    • /
    • 2013
  • Although stroke is one of the leading causes of death and disability worldwide, preventive or therapeutic options are still limited. Therefore, a better understanding of the pathophysiological characteristics of this life-threatening disease is urgently needed. The incidence and prevalence of ischemic stroke are increased by exposure to certain types of xenobiotics, including heavy metals, suggesting the possible toxicological contribution of these compounds to the onset or aggravation of stroke. Among the potential targets, we have focused on alterations to cerebral endothelial cells (CECs), which play important roles in maintaining the functional integrity of brain tissue.

A Case of the Giant Aneurysm in the Distal Portion of the Posterior Cerebral Artery - A Case Report - (후대뇌동맥 원위부에 발생한 거대동맥류 1례 - 증례보고 -)

  • Kim, Jae-Yeoup;Choi, Ha-Young
    • Journal of Korean Neurosurgical Society
    • /
    • v.29 no.7
    • /
    • pp.963-967
    • /
    • 2000
  • The aneurysm arising from the posterior cerebral artery is relatively uncommon, and has been reported in 0.7- 2.2% of whole cerebral aneurysm. Moreover, only a few cases of the giant aneurysm over 2.5cm in diameter arising from the distal portion of the posterior cerebral artery have been reported. Neurologic complications may occur after surgical treatment of this aneurysm due to difficult surgical approach and neurovascular complexity around the brain stem. Authors experienced a case of the thrombosed giant aneurysm with approximately 2.7cm in diameter arising from the P2 segment of the left posterior cerebral artery. Complete removal of the thrombus in the aneurysmal sac and direct neck clipping was performed via left subtemporal approach.

  • PDF

Cerebral Hemorrhage after Endovascular Treatment of Bilateral Traumatic Carotid Cavernous Fistulae with Covered Stents

  • Cho, Kwang-Chun;Seo, Dae-Hee;Choe, Il-Seung;Park, Sung-Choon
    • Journal of Korean Neurosurgical Society
    • /
    • v.50 no.2
    • /
    • pp.126-129
    • /
    • 2011
  • Bilateral traumatic carotid-cavernous fistulae (TCCFs) is rarely encountered neurovascular disease. For treatment of TCCF, detachable balloons have been widely used. Nowadays, transarterial and/or transvenous coil embolization with placement of covered stents is adopted as another treatment method. We experienced a patient with a bilateral TCCFs who was successfully treated with covered stents. However, cerebral hemorrhage occurred in the bed of previous infarction one day after treatment. Hyperperfusion syndrome was considered as a possible cause of the hemorrhage, so that barbiturate coma therapy was started and progression of hemorrhage was stopped. We emphasize that cerebral hyperperfusion hemorrhage can occur even after successful endovascular treatment of TCCF.

Functional Neuroimaging in Migraine (편두통의 기능적 뇌영상)

  • Kim, Ji Hyun
    • Annals of Clinical Neurophysiology
    • /
    • v.10 no.1
    • /
    • pp.13-24
    • /
    • 2008
  • Functional neuroimaging, especially positron emission tomography (PET) and functional magnetic resonance imaging (MRI), is the main tool that allows the unveiling of the neurovascular events during a migraine attack. In migraine with aura, functional neuroimaging has contributed greatly to the understanding of the fundamental pathophysiology of the visual aura, whereas in migraine without aura, the PET findings of brainstem activation suggest a pivotal role of brainstem in the generation of migraine headache. In addition, voxel-based morphometry (VBM) method has provided an insight into the morphometric changes of the brain, which might be considered as a consequence of repeated migraine attacks. In this article, I will briefly discuss the main neuroimaging findings pertaining to the pathophysiology of migraine.

  • PDF

The Subclavian Artery Thrombosis after Open Reduction and Internal Fixation of Clavicular Fracture - A Case Report - (쇄골 골절의 관혈적 정복 및 내 고정술 후 발생한 쇄골하 동맥의 혈전증 - 증례 보고 -)

  • Moon, Eun-Sun;Kim, Myung-Sun;Jeong, Kwang-Cheul;Lim, Keun-Young
    • Clinics in Shoulder and Elbow
    • /
    • v.9 no.2
    • /
    • pp.211-215
    • /
    • 2006
  • Reported in this article is a case report of a patients who developed limb threatening ischemia as a consequence of a subclavian artery thrombosis resulting from screws. The subclavian artery thrombosis after open reduction and internal fixation of clavicle fracture, when it occurs, should be treated promptly by plate removal and claviculectomy. It can be prevented by placing screws in locations away from the underlying neurovascular structures.

Secondary Erythromelalgia - A Case Report -

  • Kang, Byoung Chan;Nam, Da Jeong;Ahn, Eun Kyoung;Yoon, Duck Mi;Cho, Joung Goo
    • The Korean Journal of Pain
    • /
    • v.26 no.3
    • /
    • pp.299-302
    • /
    • 2013
  • Erythromelalgia is a rare neurovascular pain syndrome characterized by a triad of redness, increased temperature, and burning pain primarily in the extremities. Erythromelalgia can present as a primary or secondary form, and secondary erythromelalgia associated with a myeloproliferative disease such as essential thrombocythemia often responds dramatically to aspirin therapy, as in the present case. Herein, we describe a typical case of a 48-year-old woman with secondary erythromelalgia linked to essential thrombocythemia in the unilateral hand. As this case demonstrates, detecting and visualizing the hyperthermal area through infrared thermography of an erythromelalgic patient can assist in diagnosing the patient, assessing the therapeutic results, and understanding the disease course of erythromelalgia.

Transaxillary Approach for First Rib Resection to Relieve Thoracic Outlet Syndrome - A Case Report - (액와접근법을 통한 제 1 늑골 절제술로 치료한 흉곽출구 증후군 - 증례보고 -)

  • Kwon, Ki Young;Jeon, Byung Chan;Cho, Yong Woon;Cho, Sung Rae
    • Journal of Korean Neurosurgical Society
    • /
    • v.30 no.12
    • /
    • pp.1443-1448
    • /
    • 2001
  • The authors report a case of thoracic outlet syndrome in left side. Thoracic outlet syndrome is a collective term in which symptoms and signs are due to bony and soft tissue compression of the neurovascular bundle at the thoracic outlet. It is a rare case in neurosurgical field. So we had experienced one case of thoracic outlet syndrome which was improved by transaxillary approach for resection of first rib. The clinical features, diagnostic test, radiological findings, and operative technique are presented with review of literatures.

  • PDF

Treatment of multiple craniofacial osteomas by endoscopic approach

  • Yoo, Hyokyung;Doh, Gyeonghyeon;Kim, Baek Kyu
    • Archives of Craniofacial Surgery
    • /
    • v.21 no.4
    • /
    • pp.261-263
    • /
    • 2020
  • Osteomas are benign osteogenic neoplasms that usually occur as solitary craniofacial lesions. Multiple osteomas are rare, particularly those that do not occur as part of an associated syndrome. We report a case of a 72-year-old woman who presented with multiple bony protrusions over the forehead and scalp. She denied any diagnosis of syndromes that are known to be associated with osteomas. Surgical excision was performed by endoscopically resecting more than 30 osteomas of the frontal and bilateral parietal bones. Compared with conventional surgical excision through a direct incision, endoscopic-assisted surgery is a simple and effective method for the treatment of multiple craniofacial osteomas and is associated with excellent cosmetic outcomes and no neurovascular complications.

Accessory mental foramen: A rare anatomical variation detected by cone-beam computed tomography

  • Torres, Marianna Guanaes Gomes;Valverde, Ludmila De Faro;Vidal, Manuela Torres Andion;Crusoe-Rebello, Ieda Margarida
    • Imaging Science in Dentistry
    • /
    • v.45 no.1
    • /
    • pp.61-65
    • /
    • 2015
  • The mental foramen is a bilateral opening in the vestibular portion of the mandible through which nerve endings, such as the mental nerve, emerge. In general, the mental foramen is located between the lower premolars. This region is a common area for the placement of dental implants. It is very important to identify anatomical variations in presurgical imaging exams since damage to neurovascular bundles may have a direct influence on treatment success. In the hemimandible, the mental foramen normally appears as a single structure, but there are some rare reports on the presence and number of anatomical variations; these variations may include accessory foramina. The present report describes the presence of accessory mental foramina in the right mandible, as detected by cone-beam computed tomography before dental implant placement.

Experiences of Abdominoplasty without Undermining (박리없는 복부성형술의 경험)

  • Sim, Hyung Bo;Yoon, Sang Yup
    • Archives of Plastic Surgery
    • /
    • v.33 no.3
    • /
    • pp.303-307
    • /
    • 2006
  • No one technique provides an optimal outcome for all body contouring patients. There are many surgical options for abdominoplasty. Among these, this abdominoplasty without undermining consists of liposuction around abdominal subcutaneous fatty tissue, excision of lower abdominal flap. The procedure allows aggressive thinning and sculpting of abdominal flap. This operation minimizes the dead space, which often leads to postoperative complications, and preserves neurovascular supply to the abdominal skin. From 1999 to 2004, 18 patients underwent the abdominoplasty without undermining, resulting in high satisfaction rates with no significant complications, such as, pulmonary embolism and deep vein thrombosis. Patients could return to normal activity within a week. This abdominoplasty without undermining is an effective and safe alternative with low complication rate and enhances aesthetic results compared to traditional abdominal surgery.