Study of the posterior circulation in moyamoya disease

1986 ◽  
Vol 65 (4) ◽  
pp. 454-460 ◽  
Author(s):  
Susumu Miyamoto ◽  
Haruhiko Kikuchi ◽  
Jun Karasawa ◽  
Izumi Nagata ◽  
Ikuo Ihara ◽  
...  

✓ The involvement of the posterior circulation in moyamoya disease was studied in 178 patients. Forty-three had several types of disturbance such as visual field defect, decreased visual acuity, episodes of blindness, and scintillating scotomata. Most of these symptoms were attributed to occlusive lesions in the posterior circulation. Visual disturbances were seen more often in patients with a juvenile onset than in cases of adult onset. Superficial temporal artery (STA) to middle cerebral artery (MCA) anastomosis and encephalomyosynangiosis (EMS) improved the cerebral perfusion both in the anterior and posterior circulation by redistribution of blood. In most cases, the visual symptoms subsided or were stabilized after STA-MCA anastomosis and EMS. These surgical procedures did not, however, lead to direct revascularization in cases of ischemia in the visual cortex. In five patients with impending blindness, transplantation of the omentum to the occipital lobe led to improved vision.

1988 ◽  
Vol 68 (4) ◽  
pp. 537-543 ◽  
Author(s):  
Susumu Miyamoto ◽  
Haruhiko Kikuchi ◽  
Jun Karasawa ◽  
Izumi Nagata ◽  
Naohiro Yamazoe ◽  
...  

✓ Eleven cases of moyamoya disease refractory to indirect non-anastomotic revascularization, including encephalomyosynangiosis in two, encephaloduroarteriosynangiosis in seven, and encephalomyoarteriosynangiosis in two, are described. The patients suffered from recurrent cerebral ischemic symptoms, and further operative intervention, including superficial temporal artery-middle cerebral artery anastomosis and intracranial omental transplantation, was performed. The choice of operative maneuver depended on the availability of scalp arteries and on the nature of the ischemic symptoms. Although indirect non-anastomotic revascularization procedures have the advantage of technical ease and most patients respond to these procedures alone, there are some patients like the 11 presented here who are not cured by such procedures. In such cases, direct anastomotic revascularization is necessary for the prevention of stroke.


2005 ◽  
Vol 102 (6) ◽  
pp. 1013-1017 ◽  
Author(s):  
So-Hyang Im ◽  
Chang Wan Oh ◽  
O-Ki Kwon ◽  
Jung Eun Kim ◽  
Dae Hee Han

Object. In moyamoya disease (MMD), ischemic events are usually precipitated by activities associated with hyperventilation or physical strain. The authors report on four patients with a rare combination of Graves disease—associated thyrotoxicosis and MMD, whose cerebrovascular ischemic events occurred while in a thyrotoxic state. The clinical correlation between MMD and Graves' thyrotoxicosis, and outcome after surgical intervention are described. Methods. Four young women, ages 22 to 25 years, presented with profound cerebrovascular ischemic accidents. They had clinical and radiological features consistent with the diagnosis of MMD and were in the active thyrotoxic state of Graves disease. To prevent a future ischemic event, patients underwent superficial temporal artery—middle cerebral artery anastomosis combined with encephalomyosynangiosis or encephaloduroarteriosynangiosis after normalization of their hormonal conditions. All patients have been neurologically stable since revascularization procedures and lead a normal daily life. In patients with MMD, cerebrovascular ischemic events may be precipitated by thyrotoxicosis. One possible pathomechanism of cerebrovascular ischemic aggravation in the thyrotoxic state may be a hemodynamic compromise induced by an excessive increase in the cerebral metabolism and oxygen demand over the compensation of the cerebral blood flow deficit through collateral supply in MMD. Conclusions. Surgical revascularization after optimal control of thyrotoxicosis is thought to be an appropriate treatment in patients with MMD concurrent with Graves disease for the prevention of further ischemic events, especially in those with impaired cerebral perfusion and cerebral ischemic symptoms.


2000 ◽  
Vol 93 (3) ◽  
pp. 397-401 ◽  
Author(s):  
Shoichiro Kawaguchi ◽  
Shuzo Okuno ◽  
Toshisuke Sakaki

Object. The authors evaluated the effects of superficial temporal artery—middle cerebral artery (STA—MCA) bypass in the prevention of future stroke, including rebleeding or an ischemic event, in patients suffering from hemorrhagic moyamoya disease by comparing this method with indirect bypass and conservative treatment.Methods. Twenty-two patients who had hemorrhagic moyamoya disease but no aneurysm comprised the study group. These patients' clinical charts were examined with respect to their treatment and clinical course after an initial hemorrhagic episode. The mean age of the patients was 43 years and the follow-up period ranged from 0.8 to 15.1 years, with a mean of 8 years. Eleven patients (50%) were conservatively treated. Among the 11 patients who were surgically treated, STA—MCA bypass was performed in six patients (27%) and encephaloduroarteriosynangiosis (EDAS) in the other five patients (23%). Nine patients (41%) presented with an ischemic or rebleeding event during the follow-up period. The incidence of future stroke events in patients who had undergone an STA—MCA bypass was significantly lower (p < 0.05) than that in patients who had been treated conservatively or with EDAS. Kaplan—Meier plots comparing stroke-free times in patients treated with direct bypass and those in patients who conservatively or with indirect bypass showed a significant difference (p < 0.05) in favor of direct bypass.Conclusions. The effect of STA—MCA bypass on the prevention of recurrent hemorrhage or an ischemic event in patients with hemorrhagic moyamoya disease has been statistically confirmed in this study.


1971 ◽  
Vol 34 (5) ◽  
pp. 706-708 ◽  
Author(s):  
Martin L. Lazar ◽  
Clark C. Watts ◽  
Bassett Kilgore ◽  
Kemp Clark

✓ Angiography during the operative procedure is desirable, but is often difficult because of the problem of maintaining a needle or cannula in an artery for long periods of time. Cannulation of the superficial temporal artery avoids this technical problem. The artery is easily found, cannulation is simple, and obliteration of the artery is of no consequence. Cerebral angiography then provides a means for prompt evaluation of the surgical procedure at any time during the actual operation.


1996 ◽  
Vol 85 (1) ◽  
pp. 178-185 ◽  
Author(s):  
Sang Youl Lee ◽  
Laligam N. Sekhar

✓ The authors report three cases of ruptured, large or giant aneurysms that were treated by excision or trapping, followed by revascularization of distal vessels by means of arterial reimplantation or superficial temporal artery interpositional grafting. In the first case, a large serpentine aneurysm arising from the anterior temporal branch of the right middle cerebral artery (MCA) was excised and the distal segment of the anterior temporal artery was reimplanted into one of the branches of the MCA. In the second case, a giant aneurysm, fusiform in shape, arose from the rolandic branch of the MCA. This aneurysm was totally excised and the M3 branch in which it had been contained was reconstructed with an arterial interpositional graft. In the third case the patient, who presented with a subarachnoid hemorrhage, had a dissecting aneurysm that involved the distal portion of the left vertebral artery. In this case the posterior inferior cerebellar artery (PICA) arose from the wall of the aneurysm and coursed onward to supply the brainstem. This aneurysm was managed by trapping and the PICA was reimplanted into the ipsilateral large anterior inferior cerebellar artery. None of the patients suffered a postoperative stroke and all recovered to a good or excellent postoperative condition. These techniques allowed complete isolation of the aneurysm from the normal blood circulation and preserved the blood flow through the distal vessel that came out of the aneurysm. These techniques should be considered as alternatives when traditional means of cerebral revascularization are not feasible.


1989 ◽  
Vol 71 (2) ◽  
pp. 180-185 ◽  
Author(s):  
Masataka Endo ◽  
Nobuyuki Kawano ◽  
Yoshio Miyasaka ◽  
Kenzoh Yada

✓ Currently, superficial temporal artery-middle cerebral artery (MCA) anastomosis, encephalomyosynangiosis (EMS), and encephalo-duro-arterio-synangiosis are used to treat moyamoya disease and are reported to effectively improve ischemic symptoms. All are methods of reversing the flow of blood from the external carotid artery system into the cortical branches of the MCA. As moyamoya disease advances, these operations alone will predictably not correct the deterioration in blood flow in the territory of the anterior cerebral artery. It was noted in a case of moyamoya disease with intraventricular hemorrhage that a burr hole, made in the frontal region for drainage purposes, induced marked neovascularization. Since then, similar frontal burr holes have been made in five juvenile cases of moyamoya disease; this procedure involved making a burr hole in both frontal bones and incising both the dura and the arachnoid membrane. In two cases a frontal burr hole was placed simultaneously with EMS, and in the others the frontal burr hole was made following EMS. The clinical symptoms improved after the frontal burr hole was made, and dynamic computerized tomography revealed improved circulation in the frontal regions. Together with conventional surgical therapy for juvenile cases of moyamoya disease, this operation is considered beneficial both to the circulation in the frontal region and for the protection of frontal brain function.


1986 ◽  
Vol 64 (5) ◽  
pp. 816-818 ◽  
Author(s):  
Kevin T. Foley ◽  
Leslie D. Cahan ◽  
Grant B. Hieshima

✓ A portable digital subtraction unit has been used in the operating room as an important improvement in obtaining high-quality intraoperative angiograms. This digital subtraction system offers several advantages over previously described techniques for intraoperative studies. Not only are the images of good quality, but also the dose of contrast medium is reduced and a real-time imaging capability allows the surgeon to visualize the passage of contrast agent dynamically. Arterial injections may be performed by selective femoral cerebral catheterization, puncture of the cervical carotid artery, retrograde catheterization via the superficial temporal artery, or puncture of an intracranial vessel at the time of surgery.


1996 ◽  
Vol 84 (3) ◽  
pp. 468-476 ◽  
Author(s):  
Tetsuro Kawaguchi ◽  
Shigekiyo Fujita ◽  
Kohkichi Hosoda ◽  
Yoshiteru Shose ◽  
Seiji Hamano ◽  
...  

✓ Excellent results from multiple burr-hole operations for adult moyamoya disease are reported in this study. Ten patients had between one and four burr holes (mean 2.1) drilled in each hemisphere. In four patients new burr holes were added on the opposite side after depression of cerebral blood flow (CBF) was detected by follow-up single-photon emission computerized tomography imaging of the brain with N-isopropyl-p-[123I]iodoamphetamine. The postoperative follow-up period ranged from 6 to 62 months (mean 34.7 months). Beginning at 6 months postsurgery, angiograms disclosed rich neovascularization at 41 of 43 burr holes, first from the middle meningeal artery, then from the superficial temporal artery. Neovascularization did not occur at two burr holes at which there was subdural effusion and local cerebral atrophy, respectively. Progression of stenosis of the major vessels was seen in six patients. Moyamoya vessels were decreased at six sites in four patients. The CBF study revealed that the reactivity to acetazolamide improved in all six patients tested. Transient ischemic attacks disappeared in all six patients presenting with this symptom, and preoperative symptoms improved in both of the patients who presented with cerebral infarction and in both patients with intraventricular hemorrhage. There was no mortality or morbidity, and no new neurological deficits or rebleeding developed during the follow-up period. The authors strongly recommend the multiple burr-hole operation as the surgical treatment of choice for adult moyamoya disease because of its safety and effectiveness.


2004 ◽  
Vol 101 (5) ◽  
pp. 843-845 ◽  
Author(s):  
Mona Harissi-Dagher ◽  
Mikael Sebag ◽  
Jehan H. Dagher ◽  
Robert Moumdjian

✓ Moyamoya disease is characterized by constrictions of segments of the internal carotid arteries (ICAs) and a resultant abnormal anastomotic network. In the literature, visual disturbances from cerebrovascular accidents in patients with moyamoya disease have been described, but very few reports of intraocular pathological conditions have been published. The authors describe a patient with moyamoya disease who presented with chorioretinal atrophy; an association between these two diseases has not previously been reported in the literature. Findings of a clinical ophthalmological evaluation and angiographic series are presented. During the fundic examination, evidence of chorioretinal atrophy was found in this patient. Choroidal vascular insufficiency was revealed by intravenous fluorescein angiography and occlusion of the ICAs proximal to the origin of the posterior communicating arteries by selective carotid and vertebral arteriography. The vertebrobasilar system provided anastomotic connections via the posterior communicating arteries. This is the first case report of chorioretinal atrophy associated with moyamoya disease. It is believed that the vasoocclusive effects of moyamoya disease may predispose the patient to atrophic changes in the peripheral retina. The development of an anastomotic network precludes the progression of this fundic anomaly.


1977 ◽  
Vol 46 (3) ◽  
pp. 381-384
Author(s):  
Joseph F. Cusick ◽  
Senichiro Komacki ◽  
Hongyung Choi

✓ The authors report a case in which glioblastoma multiforme was intimately associated with a surgical anastomosis of the superficial temporal artery to a branch of the middle cerebral artery.


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