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Artery of Percheron

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https://www.readbyqxmd.com/read/29768961/a-rare-case-of-ruptured-aneurysm-of-the-paramedian-artery-of-percheron
#1
Gianvincenzo Sparacia, Francesco Agnello, Massimo Midiri, Alberto Iaia
Introduction The artery of Percheron is a rare anatomic variant supplying bilateral medial thalamic nuclei and a variable portion of the rostral part of midbrain. Case report A 48-year-old female with massive subarachnoid hemorrhage due to a ruptured aneurysm of the paramedian artery of Percheron presented to the emergency room. Because of significant risk of recurrent intracranial hemorrhage, it was decided to proceed with endovascular embolization of the aneurysm. The patient was ultimately sent to a rehabilitation center and her presenting neurologic deficits showed significant improvements in the weeks following endovascular embolization treatment...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29720805/uncommon-anatomical-variant-types-artery-of-percheron-infarcts-clinical-radiological-correlations
#2
T Harisuthan, Anirudh Vilas Kulkarni, Gigy Varkey Kuruttukulam
No abstract text is available yet for this article.
January 2018: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/29716821/artery-of-percheron-stroke
#3
Matthew L Wong, Jonathan A Edlow
BACKGROUND: Coma is not a common symptom of stroke. CASE REPORT: We present a patient with a stroke to the artery of Percheron, which infarcted the bilateral paramedian thalami and resulted in coma. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Identifying strokes in comatose patients is important for therapeutic management. The bilateral thalami are involved in maintaining consciousness. The artery of Percheron is an anatomic variant in the posterior circulation whereby the bilateral paramedian thalami are perfused by it solely...
April 28, 2018: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29626028/lesson-of-the-month-2-a-rare-presentation-of-stroke-diagnosis-made-on-magnetic-resonance-imaging
#4
Danielle Berenson, Luke Nuttall, Eluzai Hakim, Khaled Abdel-Aziz
Bilateral thalamic infarcts are uncommon posterior circulation strokes. The artery of Percheron (AOP) is a rare anatomical variant involving a singular arterial supply to both thalami and occlusion leads to bilateral thalamic infarction.We report the case of a 71-year-old man who presented with decreased consciousness (fluctuating Glasgow Coma Scale score of 5-7). He had a background of atrial fibrillation and was anticoagulated with dabigatran, a novel oral anticoagulant. Computed tomography (CT) scan showed a mildly reduced attenuation in the region of the left thamalus...
March 2018: Clinical Medicine: Journal of the Royal College of Physicians of London
https://www.readbyqxmd.com/read/29606081/persistent-anterograde-amnesia-due-to-the-artery-of-percheron-occlusion-a-case-report
#5
Birsen Ince, Furkan Asan
Bilateral thalamic infarction involving the artery of Percheron (AOP) can cause diagnostic difficulties due to the varying clinical presentations. AOP infarcts presented with isolated memory impairment are not common and the factors affecting the persistence of memory disorders are still unknown. A 41-year-old male patient was hospitalized with acute unconsciousness. MRI disclosed bilateral paramedian thalamic infarction The patient had isolated memory deficit and his anterograde amnesia continued without any change in the past decade...
April 2, 2018: Neurocase
https://www.readbyqxmd.com/read/29592977/artery-of-percheron-an-unusual-stroke-presentation
#6
Toby Pitts-Tucker, Jeremy Small
An 86-year-old woman was admitted with multiple episodes of transient loss of consciousness. She was initially treated for seizures, and stroke was not considered likely. MRI on the same day of admission showed acute bilateral medial thalamic infarcts in keeping with the Artery of Percheron (AOP) territory infarcts. Investigation for polycythaemia and thrombocytosis showed JAK2 positive myeloproliferative neoplasm.A diagnosis of AOP infarction is often missed or delayed because it is rare and presents with variable neurological symptoms...
March 28, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29371733/artery-of-percheron-infarct-a-diagnostic-and-prognostic-conundrum
#7
Aun Raza Shah, Rubab Ali
A 39 year old male was found unconscious at home. On arrival to the hospital the patient was profoundly somnolent but easily rousable, with no focal neurological deficits. Imaging confirmed bilateral thalamic infarcts from the occlusion of Artery of Percheron, a rare anatomic variant which is a single arterial trunk supplying the thalamus and midbrain bilaterally. Anti-platelet therapy was initiated as soon as the diagnosis was established and the patient showed a rapid remarkable recovery over the next 48 hours...
January 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29246631/assessment-of-percheron-infarction-in-images-and-clinical-findings
#8
Zhihua Xu, Lingling Sun, Yang Duan, Jinghua Zhang, Mengzhi Zhang, Xiaonan Cai
OBJECTIVE: To assess the imaging and clinical features of patients with an artery of Percheron infarction comprehensively. METHODS: Of 6539 patients with a first-ever stroke, 18 patients with a Percheron infarction were enrolled, and their images and clinical data were retrospectively investigated. RESULTS: All patients underwent neurological intensive care unit (NICU) management. The initial symptom of a Percheron infarction included dizziness, transient blurred vision, double vision, barylalia, cerebellar ataxia, drowsiness, and a coma...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29197852/artery-of-percheron-ischaemic-stroke-revealed-by-brain-mri-dwi-adc-sequences
#9
Jacopo C DiFrancesco
No abstract text is available yet for this article.
December 2, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29145285/degeneration-of-paramedian-nuclei-in-the-thalamus-induces-holmes-tremor-in-a-case-of-artery-of-percheron-infarction
#10
Tz-Shiang Wei, Chun-Sheng Hsu, Yu-Chun Lee, Shin-Tsu Chang
RATIONALE: Holmes' tremor is an uncommon neurologic disorder following brain insults, and its pathogenesis is undefined. The interruption of the dento-rubro-thalamic tract and secondary deterioration of the nigrostriatal pathway are both required to initiate Holmes' tremor. We used nuclear medicine imaging tools to analyze a patient with concurrent infarction in different zones of each side of the thalamus. Finding whether the paramedian nuclear groups of the thalamus were injured was a decisive element for developing Holmes' tremor...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29074839/acute-onset-vascular-dementia-with-bi-thalamic-infarct-in-an-hiv-positive-subject
#11
Léonard Kouamé Kouassi, Mariam Doumbia-Ouattara
BACKGROUND Bi-thalamic infarctions are rare and marked by clinical polymorphism. Their association with HIV has never been reported. CASE REPORT We report a 51-year-old right-handed man with no medical history, who presented an acute onset vascular dementia associated with an antero-retrograde amnesia, a word-finding difficulty, and a dysexecutive syndrome. The CT scan was normal. Brain MRI revealed a paramedian and bi-thalamic infarction, evoking an occlusion of the Percheron artery. The electrocardiogram, transthoracic and transesophageal cardiac ultrasound, and Doppler echo of cervical arteries gave normal results...
October 27, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29038140/teaching-neuro-images-artery-of-percheron-thrombosis-causing-selective-downgaze-palsy
#12
Matthew Sechler, Jasmeet Singh, Nada El Husseini
No abstract text is available yet for this article.
October 17, 2017: Neurology
https://www.readbyqxmd.com/read/29017677/artery-of-percheron-infarct-ararity-not-to-be-missed
#13
Farheen Niazi, Sameen Bin Naeem
Artery of Percheron (AOP) is a rare vascular variant of posterior cerebral circulation and it supplies blood to the bilateral paramedian thalami and the rostral midbrain. Artery of Percheron infarct requires a comprehensive clinical and radiological examination. It can be easily overlooked due to normal CTfindings and wide range of differential diagnosis. Classic triad of presentation is altered mental status, memory impairment and the vertical gaze palsy. We report a case of a 66-year female who had sudden onset of severe vertigo, diplopia and ataxia...
September 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28800746/artery-of-percheron-infarction-a-case-report
#14
Axel Sandvig, Sandra Lundberg, Jiri Neuwirth
BACKGROUND: The artery of Percheron is a rare anatomic variant of arterial supply to the paramedian thalamus and rostral midbrain, and occlusion of the artery of Percheron results in bilateral paramedian thalamic infarcts with or without midbrain involvement. Acute artery of Percheron infarcts represent 0.1 to 2% of total ischemic stroke. However, of thalamic strokes, occlusion of artery of Percheron is the cause in 4 to 35% of cases. Early diagnosis of artery of Percheron infarction can be challenging because it is infrequent and early computed tomography or magnetic resonance imaging may be negative...
August 12, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28799320/artery-of-percheron-infarction-in-a-patient-with-atrial-fibrillation-a-rare-stroke-syndrome
#15
Amey Beedkar, Archana Sonawale
The artery of Percheron uncommon anatomic variant that provides bilateral arterial supply to the paramedian thalami and the rostral midbrain. Occlusion of this artery results in bilateral thalamic and mesencephalic infarctions. The clinical diagnosis is difficult because of the large clinical variability. We report the clinical and MR imaging findings in a patient who developed infarction in the typical distribution of the artery of Percheron.
August 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28601258/computed-tomography-perfusion-abnormalities-in-bilateral-thalamic-infarction-due-to-artery-of-percheron-occlusion
#16
Adam MacLellan, Karl Boyle
OBJECTIVE: We aimed to report a novel case of hyperacute computed tomography (CT) perfusion imaging abnormalities in artery of Percheron infarction. METHODS: We described a case of a 74-year-old man who presented acutely to the emergency room with witnessed sudden onset altered level of consciousness. RESULTS: Although initial hyperacute CT brain imaging was reported as normal, subsequent magnetic resonance imaging revealed bilateral paramedian thalamic infarction...
August 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28281371/neuroendoscopic-view-of-artery-of-percheron
#17
Dhaval Shukla
No abstract text is available yet for this article.
October 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28265391/bilateral-internuclear-and-internal-ophthalmoplegia-due-to-artery-of-percheron-infarction
#18
Pushpa Raj Puri, Astha Sijapati
The artery of Percheron (AOP) infarction always manifests as paramedian bilateral thalamic infarcts and might present as paramedian midbrain infarcts. Despite the limited MRA evaluation, due to small size of the artery, careful evaluation of the patient's history, the clinical presentation with imaging findings can facilitate the proper diagnosis.
March 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28053539/complex-neurological-symptoms-in-bilateral-thalamic-stroke-due-to-percheron-artery-occlusion
#19
Paola Caruso, Paolo Manganotti, Rita Moretti
The artery of Percheron is a rare anatomical variant where a single thalamic perforating artery arises from the proximal posterior cerebral artery (P1 segment) between the basilar artery and the posterior communicating artery and supplies the rostral mesencephalon and both paramedian territories of the thalami. Almost one-third of human brains present this variant. Occlusion of the artery of Percheron mostly results in a bilateral medial thalamic infarction, which usually manifests with altered consciousness (including coma), vertical gaze paresis, and cognitive disturbance...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28043958/fluctuating-drowsiness-following-cardiac-catheterisation-artery-of-percheron-ischaemic-stroke-causing-bilateral-thalamic-infarcts
#20
Daniel Hammersley, Ankur Arora, Madhava Dissanayake, Nabarun Sengupta
An 81-year-old man underwent cardiac catheterisation to investigate breathlessness and left ventricular impairment of unknown cause. He had unobstructed coronary arteries. Immediately following the procedure, he became suddenly unresponsive with vertical gaze palsy, anisocoria and bilateral upgoing plantar responses. He made a rapid recovery to his premorbid state 25 min later with no residual focal neurological signs. He then had multiple unresponsive episodes, interspaced with complete resolution of symptoms and neurological signs...
January 2, 2017: BMJ Case Reports
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