scholarly journals “Mirror” Aneurysms Involving the Bilateral Distal Posterior Cerebral Artery

2004 ◽  
Vol 10 (3) ◽  
pp. 231-234 ◽  
Author(s):  
S.K. Baik ◽  
C.H. Sohn ◽  
S.K. Woo

We report the case of patient with bilateral and symmetrical aneurysms, mirror image, of the distal posterior cerebral artery (PCA) who presented with subarachnoid haemorrhage. The aneurysms were treated by endovascular approach using Guglielmi detachable coils (GDCs). A review of the pathophysiology, clinical manifestations and management of mirror aneurysms is presented and discussed.

1997 ◽  
Vol 3 (4) ◽  
pp. 325-328
Author(s):  
H.J. Cloft ◽  
D.F. Kallmes ◽  
G. Lanzino ◽  
M.E. Jensen ◽  
J.E. Dion

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.


2000 ◽  
Vol 6 (1) ◽  
pp. 61-64 ◽  
Author(s):  
Yong Sam Shin ◽  
Dong-Ik Kim ◽  
Seung Ik Lee ◽  
Jin Il Chung ◽  
Pyeong Ho Yoon ◽  
...  

We describe a technique used to treat a wide-necked aneurysm in which the neck is incorporated with the parent artery. The patient was a 54-year-old woman who had suffered a grade III subarachnoid haemorrhage. Angiogram and three-dimensional CT showed a large, wide-necked aneurysm of the basilar bifurcation area with the right posterior cerebral artery incorporated in the aneurysm sac. A microcatheter was placed in the right posterior cerebral artery (PCA). Another catheter was placed within the aneurysm lumen. When making a first frame with a GDC, we made sure that the frame of the coil did not overlap the PCA positioned microcatheter. Then, with the microcatheter positioned at the PCA, the angiogram was done. The flow pattern and dye-disappearance time were checked. Subsequent coils were introduced, but not beyond the frame of the first coil to maintain PCA flow. This new “double-catheter technique” represents a viable option for treating wide-necked aneurysms, especially when the parent artery is incorporated in a wide-necked aneurysm and the delineation of the parent artery is impossible.


2005 ◽  
Vol 11 (3) ◽  
pp. 247-250 ◽  
Author(s):  
M. Grand ◽  
J. Nepper-Rasmussen

The persistent primitive hypoglossal artery is rare remnant of one of the four embryonal carotid-basilar anastomoses. It is present in 0.02–0.26% of all cerebral angiogram. 14 cases of PHA aneurysms have been reportede in the literature and as far as we know no case in which endovascular embolization was used as a treatment. We present a case with subarachnoid haemorrhage due to aneurysm of persistent primitive hypoglossal artery. The aneurysm was successfully occluded with Guglielmi detachable coils. The SAH resolved and recovery was uneventful.


Neurosurgery ◽  
2002 ◽  
Vol 50 (6) ◽  
pp. 1380-1384 ◽  
Author(s):  
Tsuyoshi Hara ◽  
Jun-ichiro Hamada ◽  
Yutaka Kai ◽  
Yukitaka Ushio

Abstract OBJECTIVE AND IMPORTANCE We present two interesting cases involving carotid-cavernous dural fistulae draining only or predominantly into the petrosal vein after previous incomplete, complicated, endovascular treatments. Transvenous embolization with Guglielmi detachable coils, via the petrosal vein, during surgical exposure completely obliterated the fistulae. CLINICAL PRESENTATION A 64-year-old man manifesting left ocular symptoms after incomplete embolization of a left carotid-cavernous dural fistula and a 56-year-old woman manifesting left hemiparesis after complicated embolization of a right carotid-cavernous dural fistula were referred to our hospital. A percutaneous transvenous approach was attempted in both cases, but the catheter could not reach the fistula site. A combined open surgical and endovascular approach was then used. INTERVENTION The hemispheric branch of the petrosal vein was exposed via a retromastoid craniectomy. The catheter was then directly introduced into the hemispheric branch, followed by navigation into the fistula site. The fistula was completely embolized with Guglielmi detachable coils. CONCLUSION The technique of surgical transvenous embolization via a petrosal vein is a valuable alternative for the treatment of carotid-cavernous dural fistulae that drain only or predominantly into the petrosal vein, when the percutaneous transvenous route is not accessible.


2007 ◽  
Vol 50 (3) ◽  
pp. 237-242 ◽  
Author(s):  
Hong Gee Roh ◽  
Sam Soo Kim ◽  
Heon Han ◽  
Hyun-Seung Kang ◽  
Won-Jin Moon ◽  
...  

2008 ◽  
Vol 14 (3) ◽  
pp. 325-330 ◽  
Author(s):  
G.B. Bradač ◽  
P. Peretta ◽  
G. Stura ◽  
P. Ragazzi ◽  
P.P. Gaglini ◽  
...  

Aneurysms in children are rare. We describe a large spontaneous dissecting aneurysm of the posterior cerebral artery. The clinical presentation was characterized by headache as the sole symptom due to a mass effect leading to hydrocephalus. Acute treatment with a temporary ventricular shunt was followed by occlusion of the aneurysm via an endovascular approach leading to a complete recovery of the patient.


2003 ◽  
Vol 9 (1_suppl) ◽  
pp. 83-88 ◽  
Author(s):  
O. Suzuki ◽  
S. Miyachi ◽  
M. Negoro ◽  
T. Okamoto ◽  
Y. Sahara ◽  
...  

The authors carried out a retrospective review of the records of 12 patients with aneurysms of the posterior cerebral artery (PCA). Four were asymptomatic, 1 presented with a mass effect, and 7 with a subarachnoid haemorrhage (SAH). Of the 7 ruptured aneurysms, 3 were embolized and 2 were clipped. However, 2 patients died from rebleeding before any treatment. Of the 5 unruptured aneurysms, 1 was embolized with coils but the remaining 4 have been conservatively observed. No aneurysms have ruptured during the follow-up period, and 3 have thrombosed spontaneously. According to our results, the PCA aneurysms should be treated aggressively in the early phase. Although the preservation of the anatomical integrity of the PCA should naturally be one of the prime objectives, PCA occlusion may sometimes be inevitable when treating large or fusiform aneurysms. On the other hand, conservative therapy is one of the options for the treatment of incidentally encountered unruptured ones, because these have the possibility of spontaneous thrombosis.


2020 ◽  
Author(s):  
Shuai Zheng ◽  
Peicong Ge ◽  
Jingzhe Wang ◽  
Zhiyong Shi ◽  
Yi Li ◽  
...  

Abstract BackgroundDigital subtraction angiography (DSA), magnetic resonance angiography (MRA) and other imaging methods are limited in the long-term and dynamic examination of hemodynamic changes in moyamoya disease (MMD). The aim of this study was to investigate the hemodynamic changes using ultrasound according to DSA findings and explore the association between ultrasound parameters and clinical manifestations of MMD.MethodsHemodynamic parameters of the extracranial internal carotid artery (EICA) and posterior cerebral artery (PCA) identified by ultrasound were classified into 3 groups according to DSA findings, and differences in ultrasound parameters among DSA stages were compared. Then, according to clinical manifestations, 30 patients were divided into the stroke group and the transient ischemic attack (TIA) group. We compared the differences in the EICA and PCA ultrasound parameters between the two groups, and receiver operating characteristic (ROC) curves were used to evaluate the value of ultrasound parameters in diagnosing stroke and TIA in MMD patients.ResultsThe diameter (D), peak systolic velocity (PSV), end diastolic velocity (EDV) and flow volume (FV) of EICA decreased as the Suzuki stage advanced (D: p༜0 .001, PSV: p = 0.002, EDV: p = 0.001, FV: p༜0.001). The PSV and EDV of PCA increased as the scores of the leptomeningeal system from the PCA to the anterior cerebral artery (ACA) and middle cerebral artery (MCA) territory advanced (PSV: p = 0.002, EDV: p༜0.001). Comparing the ultrasound parameters between the stroke group and the TIA group, the D and FV of EICA, the PSV and EDV of PCA were significantly different. ROC analysis showed that the area under the curve (AUC) based on the FV of EICA, the PSV of PCA and the combination of the two parameters were 0.676, 0.737 and 0.787, respectively, to diagnose stroke and TIA in MMD patients.ConclusionsOur results suggest that ultrasound parameters are related to DSA results, and that ultrasound is useful in predicting the clinical severity of MMD.Trial registration:Clinical Trial Registration-URL: http://www.chictr.org. Unique identifier: ChiCTR1900026075


2000 ◽  
Vol 41 (2) ◽  
pp. 111-115 ◽  
Author(s):  
H.S. Cekirge ◽  
C. Islak ◽  
M.M. Firat ◽  
N. Kocer ◽  
I. Saatci

Purpose: Treatment of residual or recurrent aneurysms after surgical clipping is a challenge and most surgeons prefer to avoid a second surgical attempt. We present treatment of 4 residual or recurrent aneurysms after surgical clipping with electrolytically detachable coils. Material and Methods: In 3 of 4 patients, recurrent aneurysms were diagnosed with angiography 2 months, 5 years and 14 years after surgery, although the domes of the aneurysms were opened following clipping during the surgery. In the 4th patient, an early postoperative angiogram revealed filling of a residual aneurysm secondary to the incomplete neck clipping. Guglielmi detachable coils were used to occlude the residual or recurrent aneurysm. Results: The endovascular approach was successful in all patients and the control angiograms showed complete obliteration of the aneurysms with no recanalization. Conclusion: The endovascular approach is a good treatment option for patients in whom complete obliteration of the aneurysm cannot be achieved by surgical clipping. Opening of the aneurysm sac after clipping does not necessarily preclude aneurysm regrowth from a neck remnant proximal to the clip.


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