That we know about illnesses
Monday, 31 Aug 2015
You know that ...
In a brain of the person for one second occurs more than 100 000 chemical reactions.

Insult cerebral - acute disturbance of a cerebral circulation.

Etiology, pathogenesis. In most cases insults are complication of an idiopathic hypertensia and an atherosclerosis, less often they are caused by illnesses of the valval apparatus of heart, a myocardial infarction, congenital anomalies of vessels of a brain, hemorrhagic syndromes and arterites. Approximately in 90 % of patients with an insult find out those or other forms of a lesion of heart with signs of a cardiovascular failure. Exception some variants of hemorrhagic insults, for example at break make only aneurysms at people of young age.

Signs, current. Acute lesions of vessels of a brain section into five groups: transient disturbances of a cerebral circulation, an infarct of a brain, a vascular embolism of a brain, a hematencephalon, a subarachnoidal hemorrhage.

Transient disturbances of a cerebral circulation - it is is acute arising circulatory disturbances at which focal and general cerebral signs keep no more than 24 hours. Their immediate cause is the microembolism clumps of crystals of a cholesterin, fragments of plaques or conglomerates of thrombocytes. The microemboluses brought by a current of a blood in fine vessels of a brain, cause a regional spastic stricture.

The infarct of a brain (a clottage on old classifications) is characterized by presence in the anamnesis of full-transistorized ischemic attacks, gradual (within several hours) formation of focal signs, safety of consciousness, absence or a small expression of the general cerebral signs, absence of a blood in a cerebrospinal liquid.

The vascular embolism of a brain is characterized by development of an insult, quite often loss of consciousness and presence in the majority of patients of the rheumatic mitral illness, less often than recently transferred myocardial infarction. " The paradoxical embolism " - an insult at congenital not the fusion of the interatrial septum causing hit in cerebral vessels of emboluses from thrombosed veins of the bottom extremities. The infarct arising owing to an embolism of a cerebral vessel, can wear both ischemic, and hemorrhagic character and widely varies in sizes.

The hematencephalon in typical cases is characterized by occurrence of focal signs, development of a coma and an impurity of a blood to a cerebrospinal liquid. As a rule, the hematencephalon arises at the patients, suffering an arterial hypertensia; the isolated atherosclerosis without the raised arterial pressure - the rare reason of a hemorrhage. As the indicator of similar complication occurrence in the patient serves in a coma of oculomotor frustration (a strabismus, a ptosis, a mydriasis). The hemorrhage in a cerebellum can cause a prelum of an oblong brain due to shift of tonsils of a cerebellum in the big occipital aperture.

The subarachnoidal hemorrhage is usual (80 % of cases) are caused as break intracranial an aneurysm, as a rule, localized in the field of an arterial circle of the big brain, less often their reason the idiopathic hypertensia, hemorrhagic syndromes serve.

News of medicine
29.08.2015 Spironolactone: The 'Other' Hormonal Acne Therapy >>>
29.08.2015 Tips for Acing Your Next Job Interview: Healthcare Career Insights >>>
29.08.2015 Friday Feedback: Spotlight on Celebrity Disease Diagnoses >>>
29.08.2015 Cohen's Brain Bits: Resistance Is Futile >>>
28.08.2015 DPP-4 Inhibitors Linked to Severe Joint Pain, FDA Warns >>>
28.08.2015 Beta-Blockers: Evidence of Mortality Benefit in Ovarian Cancer (CME/CE) >>>
28.08.2015 Janssen Accused of Withholding Data on Risperdal Side Effect in Autism >>>
28.08.2015 What to Make of Vitamin D, MS, & Mendelian Randomization (CME/CE) >>>
28.08.2015 Physicians Should Speak Out on Mass Deportation of Immigrants >>>
28.08.2015 Tweet of the Week: Mass Shootings -- Are They Inevitable? >>>
28.08.2015 Perceived Racism in Lupus Linked With Depression (CME/CE) >>>
28.08.2015 Worried About Your Teaching Evaluations? Read This First. >>>
28.08.2015 CDC: Kindergarten Vax Rate High, But Not High Enough (CME/CE) >>>
28.08.2015 Trace Amyloid Back to Precursor Protein >>>
28.08.2015 More Evidence Ties Antibiotics to Type 2 Diabetes Risk (CME/CE) >>>
28.08.2015 ACR Joins Outcry Against ABIM's MOC Program >>>
28.08.2015 Morning Break: Really Big Bullies, Creative Daydreaming, Poop Donors >>>
28.08.2015 Can Tomatoes Trigger Gout? (CME/CE) >>>
28.08.2015 Another PCSK9 Drug Wins FDA Approval >>>
28.08.2015 Bed Bug Resurgence a Multifactorial Issue >>>