Investigation of Risk Factors, Topographic Location and Stroke Mechanisms of Unilateral Isolated and Posterior Cerebral Artery Thalamic Infarcts

2019 ◽  
Vol 72 (7-8) ◽  
pp. 251-256
Author(s):  
Elif Gökçal ◽  
Yıldızhan Şengül ◽  
Ferda Uslu
Keyword(s):  
Risk Factors ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Thalamic Infarcts

Dividing the Posterior Communicating Artery in Approaches to the Interpeduncular Fossa: Technical Aspects and Safety

2007 ◽  
Vol 61 (suppl_5) ◽  
pp. ONSE392-ONSE397 ◽  
Author(s):  
Niklaus Krayenbühl ◽  
Ali F. Krisht
Keyword(s):  
Risk Factors ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Postoperative Bleeding ◽  
Posterior Communicating Artery ◽  
Vascular Risk ◽  
Technical Aspects ◽  
Free Zone ◽  
Neoplastic Lesions ◽  
Ischemic Complications

Abstract Objective: Cutting the posterior communicating artery (PComA) can improve the neurosurgeon's view and maneuverability while performing surgery within the interpedun-cular fossa. Although mentioned in some reports, its technique and safety have not been studied in detail thus far. Methods: Patients undergoing surgery for vascular and neoplastic lesions in the interpeduncular fossa in which the PComA was cut were retrospectively analyzed regarding the location where the PComA was divided, the size of the PComA in relation to the posterior cerebral artery, and the vascular risk factors. Clinical and radiological outcomes and the related complications were recorded and analyzed. Results: The PComA was divided in 25 patients, and was operated on for vascular (in 23 patients) and neoplastic (in 2 patients) lesions. The PComA was divided at a perforator-free-zone. This zone was most commonly located at the junction of the PComA and the posterior cerebral artery (88% of patients). One patient had delayed postoperative bleeding from the divided PComA stump. There were no ischemic complications either in the territory of the PComA perforator or in the posterior cerebral artery. Conclusion: This is the largest reported experience with dividing the PComA. It shows that this surgical step is safe and that it constitutes an important option to help improve the exposure, maneuverability, and safety of surgery in the region of the interpeduncular fossa.

scholarly journals Mechanisms, clinical features and risk factors for stroke in the posterior cerebral artery infarcts

2015 ◽  
Vol 21 (2) ◽  
pp. 49-54 ◽  
Author(s):  
Şenay Aydın ◽  
Zehra Işıl Satılmış Borucu ◽  
Nevin Pazarcı ◽  
Dilek Necioğlu Örken ◽  
Hulki Forta
Keyword(s):  
Risk Factors ◽  
Clinical Features ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery

scholarly journals Risk factors for postoperative ischemic complications in pediatric moyamoya disease

BMC Neurology ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaofeng Deng ◽  
Peicong Ge ◽  
Rong Wang ◽  
Dong Zhang ◽  
Jizong Zhao ◽  
...  
Keyword(s):  
Risk Factors ◽  
Logistic Regression ◽  
Moyamoya Disease ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Older Age ◽  
Radiographic Findings ◽  
Ischemic Complications ◽  
Direct Bypass ◽  
Ischemic Events

Abstract Background Ischemic events are the most common postoperative complication in bypass surgery for moyamoya disease (MMD), but the risk factors for pediatric MMD remain unclear. The goal of the study was to investigate the risk factors for postoperative ischemic complications in pediatric MMD patients. Methods We retrospectively reviewed a consecutive series of pediatric MMD cases at Beijing Tiantan Hospital, Capital Medical University from June 2010 through June 2019. Preoperative clinical variables and radiographic findings were recorded, and logistic regression analysis was carried out to identify the risk factors for postoperative ischemic events. Results A total of 533 operations in 336 patients were included in this study. Postoperative complications occurred after 51 operations (9.6%), including 40/447 indirect bypass procedures, 9/70 direct bypass procedures, and 2/16 combined bypass procedures. Postoperative ischemic events were the most common complication and occurred in 30 patients after 31 procedures (8.9% per patient; 5.8% per operation), including 26/447 indirect bypass procedures, 4/70 direct bypass procedures, and 1/16 combined bypass procedures, and the incidence of these events did not differ significantly between indirect and non-indirect bypass (5.8% vs 5.8%; p = 0.999). Multivariate logistic regression analyses revealed that older age at operation (OR 1.129, 95% CI 1.011–1.260, p = 0.032) and posterior cerebral artery involvement (OR 2.587, 95% CI 1.030–6.496, p = 0.043) were significantly associated with postoperative ischemic events. Conclusion We speculate that older age at operation and posterior cerebral artery involvement are risk factors for postoperative ischemic events in pediatric MMD patients.

scholarly journals Impact of posterior cerebral artery involvement on long-term clinical and social outcome of pediatric moyamoya disease

2013 ◽  
Vol 12 (6) ◽  
pp. 626-632 ◽  
Author(s):  
Takeshi Funaki ◽  
Jun C. Takahashi ◽  
Yasushi Takagi ◽  
Kazumichi Yoshida ◽  
Yoshio Araki ◽  
...  
Keyword(s):  
Risk Factors ◽  
Moyamoya Disease ◽  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Univariate Analysis ◽  
Social Outcomes ◽  
Long Term Results ◽  
Social Outcome

Object In the study of pediatric moyamoya disease, information on long-term social outcomes and risk factors for unfavorable social outcomes remains insufficient. The authors analyzed the long-term results of surgical revascularization for pediatric patients with moyamoya disease to determine whether the involvement of a stenoocclusive lesion in the posterior cerebral artery (PCA), relatively common in pediatric moyamoya disease, represents an underlying predictor for unfavorable social outcomes. Methods Prospectively collected data on 61 consecutive patients with moyamoya disease who had undergone combined bypass surgery were analyzed. Neuroradiological features and other baseline clinical factors were incorporated into univariate and multivariate analyses to determine any association with an unfavorable social outcome, defined as difficulty attending regular school or obtaining regular employment. Results Posterior cerebral artery involvement detected by angiography on admission was noted in 22 (36.1%) of the 61 patients. Follow-up data were acquired in 56 patients (91.8%), and the mean follow-up period was 15.8 years. While transient ischemic attacks were eliminated in 52 (92.9%) of these 56 patients after surgery, and late-onset ischemic stroke was observed in only 1 patient during the follow-up period, 10 (17.9%) experienced an unfavorable social outcome. Although younger age at onset, longer duration between onset and surgery, infarction present on preoperative neuroradiological images, and PCA involvement had been identified as risk factors for an unfavorable social outcome in univariate analysis, only infarction present on preoperative images and PCA involvement remained statistically significant after multivariate adjustment. Conclusions Posterior cerebral artery involvement can be considered one of the underlying risk factors for unfavorable social outcome and should be studied further to improve social outcome in pediatric moyamoya disease.

Bilateral Thalamic Infarcts Complicating Basilar Tip Aneurysm Coil Embolisation

1997 ◽  
Vol 3 (4) ◽  
pp. 325-328
Author(s):  
H.J. Cloft ◽  
D.F. Kallmes ◽  
G. Lanzino ◽  
M.E. Jensen ◽  
J.E. Dion
Keyword(s):  
Cerebral Artery ◽  
Posterior Cerebral Artery ◽  
Artery Stenosis ◽  
Partial Occlusion ◽  
Guglielmi Detachable Coils ◽  
Coil Embolisation ◽  
Detachable Coils ◽  
Basilar Tip Aneurysm ◽  
Thalamic Infarcts

We report a case of bilateral thalamic infarcts with no apparent cause other than unilateral partial occlusion of the P1 segment of the posterior cerebral artery caused by Guglielmi detachable coils in a basilar tip aneurysm. This case demonstrates that bilateral thalamic infarctions can result from a unilateral posterior cerebral artery stenosis or occlusion, and does not necessarily imply bilateral posterior cerebral artery abnormality.

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