Biomaterial Database

Cerebral blood flow in moyamoya disease. Part 2: Autoregulation and CO2 response. 1990

A Ogawa, and N Nakamura, and T Yoshimoto, and J Suzuki

Division of Neurosurgery, Tohoku University School of Medicine, Sendai, Japan.

In order to clarify the cerebrovascular response in Moyamoya disease, the autoregulation and CO2 response was investigated using the 81mKr continuous cerebral blood flow (CBF) measurement technique. A total of 32 measurements were made over the anterior and posterior circulation in 16 Moyamoya patients (seven adults, nine children). CBF measurements were made during four loading trials (hypertension, hypotension, CO2 inhalation and hyperventilation). Study was then made of the vascular response of the frontal lobe, perfused by the internal carotid artery (ICA), and the occipital lobe and cerebellum, perfused by the vertebral artery (VA). Deficits of autoregulation were more severe among the juvenile cases in response to hypotension than to hypertension in both the ICA and VA regions, but the deficits were mild. The CO2 response to hypercapnea in the juvenile cases tended to be abnormal in both the ICA and VA regions. Both adult and juvenile patients showed deficits in the ICA region in response to hyperventilation, some of whom exhibited paradoxial responses. Notable differences in the severity of the deficits of the vascular response in adult and juvenile cases were seen, with the deficits in the response being more severe among the juvenile cases. Moreover, significant regional differences in the deficits were also found.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009072	Moyamoya Disease	A noninflammatory, progressive occlusion of the intracranial CAROTID ARTERIES and the formation of netlike collateral arteries arising from the CIRCLE OF WILLIS. Cerebral angiogram shows the puff-of-smoke (moyamoya) collaterals at the base of the brain. It is characterized by endothelial HYPERPLASIA and FIBROSIS with thickening of arterial walls. This disease primarily affects children but can also occur in adults.	Cerebrovascular Moyamoya Disease,Progressive Intracranial Occlusive Arteropathy (Moyamoya),Moya-Moya Disease,Moyamoya Disease, Classic,Moyamoya Disease, Primary,Moyamoya Disease, Secondary,Moyamoya Syndrome,Classic Moyamoya Disease,Disease, Classic Moyamoya,Disease, Moya-Moya,Disease, Primary Moyamoya,Moya Moya Disease,Moyamoya Diseases, Primary,Primary Moyamoya Disease,Primary Moyamoya Diseases,Secondary Moyamoya Disease
D009778	Occipital Lobe	Posterior portion of the CEREBRAL HEMISPHERES responsible for processing visual sensory information. It is located posterior to the parieto-occipital sulcus and extends to the preoccipital notch.	Annectant Gyrus,Calcarine Fissure,Calcarine Sulcus,Cuneate Lobule,Cuneus,Cuneus Cortex,Cuneus Gyrus,Gyrus Lingualis,Lingual Gyrus,Lunate Sulcus,Medial Occipitotemporal Gyrus,Occipital Cortex,Occipital Gyrus,Occipital Region,Occipital Sulcus,Sulcus Calcarinus,Calcarine Fissures,Calcarinus, Sulcus,Cortex, Cuneus,Cortex, Occipital,Cortices, Cuneus,Cortices, Occipital,Cuneate Lobules,Cuneus Cortices,Fissure, Calcarine,Fissures, Calcarine,Gyrus Linguali,Gyrus, Annectant,Gyrus, Cuneus,Gyrus, Lingual,Gyrus, Medial Occipitotemporal,Gyrus, Occipital,Linguali, Gyrus,Lingualis, Gyrus,Lobe, Occipital,Lobes, Occipital,Lobule, Cuneate,Lobules, Cuneate,Occipital Cortices,Occipital Lobes,Occipital Regions,Occipitotemporal Gyrus, Medial,Region, Occipital,Regions, Occipital,Sulcus, Calcarine,Sulcus, Lunate,Sulcus, Occipital
D001783	Blood Flow Velocity	A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.	Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D001921	Brain	The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.	Encephalon
D002245	Carbon Dioxide	A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.	Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon
D002343	Carotid Artery, Internal	Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.	Arteries, Internal Carotid,Artery, Internal Carotid,Carotid Arteries, Internal,Internal Carotid Arteries,Internal Carotid Artery
D002531	Cerebellum	The part of brain that lies behind the BRAIN STEM in the posterior base of skull (CRANIAL FOSSA, POSTERIOR). It is also known as the "little brain" with convolutions similar to those of CEREBRAL CORTEX, inner white matter, and deep cerebellar nuclei. Its function is to coordinate voluntary movements, maintain balance, and learn motor skills.	Cerebella,Corpus Cerebelli,Parencephalon,Cerebellums,Parencephalons
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children