ABSTRACT
Background. In the process of infarction, important mechanism of blood supply deficiency is collateral blood supply. There are a lot of various collaterals which are able to supply in the period of necessity of human brain. Collateral which forms in the level of villas circle (ring) in the cranium is the most important front and back artery cord of brain form villas circle (ligament) as a result of these arteries possibility of forming collateral blood supply in the period of blood insufficiency in vertebral and carotis and between magisterial artery of 2 sides of brain opens. It is rare when the system of villas circle (ring) is complete (full), artery cord is narrow (hypoplasia, aplasia) or none, villas circle(ring) loses its complete and it becomes open on the front and at the back part. By the researchers study hypoplasia of artery cord occurs in 20-40% because it branches off from other artery. By Yu.M. Nixitins study vertebral artery of the brain branches off the form the artery into carotis and it open at back part-was 25%, study of system of villas circle (ring) by angiography hasnt been done. Aim. We aimed at the diagnosing villas circle system by angiographic method and studying its incompleteness, form cause, age and sex dependence. Materials and Methods. We studied material of 595 patients who were done angiography of the brain because of acute and chronic deficiency of blood supply of the brain in 2007-2008 at the third clinical hospital by P.N.Shastin in the cabinet of angiography came from clinic, district and Achtan Elit hospital. We clarified magisterial arteries and villas circles in the cranium by the standard method in 2 sides used polydiagnostic 2 digital subtraction equipment of Philips form of Japan. We evaluated artery system, location, form and size and studied age and sex dependence.75% of verographer solution not more than 80-100ml was injected into the artery. Conclusion: 1. Incompleteness of circle revealed in 31.7 % 2. Open case of villas circle in the front part was in 41.5 % 3. Open case of villas circle at the back revealed in 58.4% 4. Studying villas circle, evaluating collateral blood supply is necessary to blood supply deficiency in particular to define blood deficiency insult.
ABSTRACT
Background. Nowadays more attention is paid to the study of blood supply of the brain in during headache with various causes. Blood supply of the branch is supplied by 2 pairs of carotis and vertebral artery and 2/3 of it in the carotis and 1/3 of it by the vertebral artery. (Farekas et al., 1963) disease with various causes of the vertebral artery in the external part of the cranium or abnormal system have been studied from ancient un the external part of the cranium, lengthening, aplasia and hypoplasia, change of neck vertebra disk affect to dynamic change of back artery blood supply. By scholar maisel fold of vertebral artery is 40%. Stenoses-18%, hypoplasia-10% vertebral artery through c 3-c5 vertebra occurred 12-20%., abnormal system of vertebral artery and location occur more than carotis artery and it has more dependence on external part of the cranium. Study of disease of vertebral artery in the external part of the cranium by the method of angiography hasnt been done in our country. Aim of research work: We aimed at diagnosing disease of vertebral artery in the external part by the method of angiography and studying its form, case, age and sex dependence. Conclusion: 1. Change of vertebral artery revealed 62.3% 2. Fold of vertebral artery in the 6th level 42% in v2, 3 level -9% revealed. 3. Vertebral artery is congenitally narrow (aplasia, hypoplasia)12%., through v3-5, vertebra-13%. 4. 58% of the people with vertebral artery disease occupy females.
ABSTRACT
Aim and objective of studyTo study possibility of detecting Arteria carotis communis disease by dopplerosonography.Objectives:- To study dopplerography symptom which reveals in the period of Arteria carotis communis disease?- To study dependence of age, sex and artery pressure.Materials and Methods. Study was done on 100 patients who were analysed by dopplerosonograph at the centre of cerebrovessel diagnose BestEMA in 2006-2007. Study was done by using Angiodin ultrasonic dopplerosonograph apparatus and by standard method.Results: On 33 patients who were involved in the study functional defi ciency of Arteria carotis communis was revealed. Functional deficiency of carotis artery of one side was revealed on 12 patients, functional defi ciency of carotis artery of 2 sides on 21 patients, on 7 people had defi ciency of carotis artery hemodynamic over 30% and on 12 more than 50%. 84, 8% of people with functional defi ciency of general artery of carotis have hypertension at some extent. For age there were 19 males-32-77 aged and 14 females. There is Tendency of increasing defi ciency of Arteria carotis communis of 2 sides when the people become older. By dopplerosonograph analyse, when defi ciency of Arteria carotis communis increases speed of blood stream decreases, survey changes, becoming without window, sound /noise/ of stream changes and peripheral resistance increases. Such symptoms are mostly revealed.Conclusion:1. By dopplerosonograph analyse on 33% defi ciency because of Arteria carotis communis sclerosis was revealed.2. 90% of functional defi ciency of Arteria carotis communis occurs on people who are more than 40 years old.3. In the period of general artery scleroses of carotis speed of artery stream decreases survey and noise are changed, peripheral resistance increases. These symptoms are revealed.4. 84.8% of people, on whom carotis artery defi ciency was revealed, hypertension increases at some extent.