scholarly journals Cerebral Hemodynamics in “Moyamoya” Disease

1981 ◽  
Vol 21 (11) ◽  
pp. 1161-1168 ◽  
Author(s):  
JUN KARASAWA ◽  
HARUHIKO KIKUCHI ◽  
YOSHIHIRO KURIYAMA ◽  
TOHRU SAWADA ◽  
MASAKAZU KURO ◽  
...  
Keyword(s):  
Moyamoya Disease ◽  
Cerebral Hemodynamics

Abstract WP171: Surgical Strategy And Results Of Additional Bypass For Patients With Moyamoya Disease Refractory To Previous Surgery

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Satoshi Kuroda ◽  
Naoki Akioka ◽  
Daina Kashiwazaki ◽  
Hideo Hamada ◽  
Naoya Kuwayama ◽  
...  
Keyword(s):  
Disease Progression ◽  
Moyamoya Disease ◽  
Bypass Surgery ◽  
Posterior Cerebral Artery ◽  
Cerebral Hemodynamics ◽  
Surgical Revascularization ◽  
Surgical Strategies ◽  
Cerebrovascular Events ◽  
Before And After

Introduction —It is well known that surgical revascularization can improve cerebral hemodynamics and prevent further ischemic cerebrovascular events in moyamoya disease. However, a certain subgroup of patients repeats ischemic attacks even after surgery because of insufficient surgery or disease progression during follow-up periods. Hypothesis —Relevant designs and techniques in additional bypass surgery can resolve ischemic cerebrovascular events in patients with moyamoya disease refractory to previous bypass surgery. Methods —This study included totally 7 patients (9 hemispheres) with moyamoya disease refractory to previous bypass surgery. There were 5 children and 2 adults. They underwent previous bypass surgery in Japan and Europe 6 to 240 months before admission. Based on precise clinical and radiological analysis, cerebrovascular events were considered to occur because of insufficient bypass surgery in 5 patients and disease progression in the ipsilateral posterior cerebral artery in 2. Surgical strategies included wide craniotomy to cover the area where cerebral hemodynamics is still impaired and appropriate bypass procedures such as STA-MCA anastomosis, OA-PCA anastomosis, and indirect bypass. Using [123]I-IMP SPECT or [15]O-gas PET, cerebral hemodynamics was precisely examined before and after surgery Results —Postoperative course was uneventful and cerebral hemodynamics significantly improved in all 7 patients. Postoperative cerebral angiography revealed that additional bypass provided collateral blood flow to ischemic area before surgery. Ischemic cerebrovascular events rapidly resolved in 5 patients and gradually decreased in 2. Conclusion —This study strongly suggests adequate surgical design and procedures can resolve ischemic cerebrovascular events in patients with moyamoya disease refractory to previous bypass surgery.

Changes in cerebral hemodynamics following encephalo-duro-arterio-synangiosis (EDAS) in young patients with moyamoya disease

1989 ◽  
Vol 31 (5) ◽  
pp. 343-349 ◽  
Author(s):  
Ryuta Suzuki ◽  
Yoshiharu Matsushima ◽  
Yoshiaki Takada ◽  
Tadashi Nariai ◽  
Shin-ichi Wakabayashi ◽  
...  
Keyword(s):  
Moyamoya Disease ◽  
Young Patients ◽  
Cerebral Hemodynamics

Cerebral hemodynamics and metabolism in adult moyamoya disease: Comparison of angiographic collateral circulation

2004 ◽  
Vol 18 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Rishu Piao ◽  
Naohiko Oku ◽  
Kazuo Kitagawa ◽  
Masao Imaizumi ◽  
Kohji Matsushita ◽  
...  
Keyword(s):  
Moyamoya Disease ◽  
Collateral Circulation ◽  
Cerebral Hemodynamics ◽  
Adult Moyamoya Disease

Postoperative neurological deterioration in pediatric moyamoya disease: watershed shift and hyperperfusion

2010 ◽  
Vol 6 (1) ◽  
pp. 73-81 ◽  
Author(s):  
Toshiaki Hayashi ◽  
Reizo Shirane ◽  
Miki Fujimura ◽  
Teiji Tominaga
Keyword(s):  
Mr Imaging ◽  
Cerebral Infarction ◽  
Moyamoya Disease ◽  
Postoperative Period ◽  
Mr Angiography ◽  
Dynamic Change ◽  
Young Patients ◽  
Cerebral Hemodynamics ◽  
Early Postoperative Period ◽  
Neurological Deterioration

Object Young patients with moyamoya disease frequently exhibit extensive cerebral infarction at the time of initial presentation, and even in the early postoperative period. To investigate clinical characteristics in the early postoperative period, the authors prospectively analyzed findings of MR imaging, MR angiography, and SPECT before and after surgery. The authors focused in particular on how postoperative neurological deterioration occurred. Methods Between August 2005 and June 2009, 22 patients younger than 18 years of age with moyamoya disease were treated at Miyagi Children's Hospital. The mean patient age (± SD) was 8.58 ± 4.55 years (range 2–17 years). Superficial temporal artery–middle cerebral artery bypass and indirect bypass of encephalosynangiosis between the brain surface and the temporal muscle, galea, and dura mater were performed in 35 hemispheres. Magnetic resonance imaging and MR angiography were performed before surgery, at 7 days postoperatively, and 3–6 months after surgery. A 123I-isopropyl iodoamphetamine SPECT scan was also obtained pre- and postoperatively. Results During the postoperative period, neurological deterioration was observed after 15 operations (10 cases of motor paresis, 1 of aphasia, and 4 of sensory disturbance) in 13 patients. All symptoms had resolved by the time of discharge, except in 2 patients who suffered cerebral infarction. All patients exhibited disappearance (94.3%) or reduction (5.7%) of transient ischemic attacks (TIAs) during the follow-up period. Perioperative studies revealed 2 different types of radiological findings, focal uptake decrease on SPECT indicative of cerebral ischemia due to dynamic change in cerebral hemodynamics caused by bypass flow, the so-called watershed shift, and perioperative edematous lesions on MR imaging due to cerebral hyperperfusion. The frequent occurrence of preoperative TIAs was significantly associated with watershed shift, whereas preoperative MR imaging findings and preoperative SPECT findings were not. Age at operation was the only factor significantly associated with postoperative hyperperfusion. Conclusions In young patients, moyamoya disease exhibits rapid progression, resulting in poor clinical outcome. The risk of postoperative neurological deterioration in very young moyamoya patients with frequent TIAs should be noted. The findings in this study showed that direct bypass is not completely safe in patients with moyamoya disease because it causes dynamic change in postoperative cerebral hemodynamics.

scholarly journals Effective Surgical Revascularization Improves Cerebral Hemodynamics and Resolves Headache in Pediatric Moyamoya Disease

2013 ◽  
Vol 80 (5) ◽  
pp. 612-619 ◽  
Author(s):  
Masahito Kawabori ◽  
Satoshi Kuroda ◽  
Naoki Nakayama ◽  
Kenji Hirata ◽  
Toru Shiga ◽  
...  
Keyword(s):  
Moyamoya Disease ◽  
Cerebral Hemodynamics ◽  
Surgical Revascularization

Cerebral hemodynamics and ?re-build-up? phenomenon on electroencephalogram in children with moyamoya disease

1995 ◽  
Vol 11 (4) ◽  
pp. 214-219 ◽  
Author(s):  
Satoshi Kuroda ◽  
Hiroyasu Kamiyama ◽  
Masanori Isobe ◽  
Kiyohiro Houkin ◽  
Hiroshi Abe ◽  
...  
Keyword(s):  
Moyamoya Disease ◽  
Cerebral Hemodynamics

Cerebral hemodynamics and metabolism in Moyamoya disease—a positron emission tomography study

1997 ◽  
Vol 99 ◽  
pp. S74-S78 ◽  
Author(s):  
Yasuo Kuwabara ◽  
Yuichi Ichiya ◽  
Masayuki Sasaki ◽  
Tsuyoshi Yoshida ◽  
Kouji Masuda ◽  
...  
Keyword(s):  
Positron Emission Tomography ◽  
Moyamoya Disease ◽  
Cerebral Hemodynamics ◽  
Emission Tomography ◽  
Positron Emission Tomography Study ◽  
Positron Emission
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