Can venous thrombosis cause infarction?

Cerebral venous sinus thrombosis (CVST) is an uncommon cause of cerebral infarction, compared to arterial diseases. It is often unrecognized at initial presentation due to the diversity of causes and clinical manifestations.

How does infarction occur?

infarction, death of tissue resulting from a failure of blood supply, commonly due to obstruction of a blood vessel by a blood clot or narrowing of the blood-vessel channel. The dead tissue is called an infarct.

What is the difference between infarction and occlusion?

Red infarctions (hemorrhagic infarcts) generally affect the lungs or other loose organs (testis, ovary, small intestines). The occlusion consists more of red blood cells and fibrin strands.

How do arterial and venous infarct radiology differ?

The main differentiating feature between arterial and venous infarcts is that arterial infarcts conform to an arterial distribution reflecting the pathophysiology of occluded inflow. Venous infarcts, which are caused by outflow occlusion and cerebral edema, do not (Table 13.1).

What is periventricular venous infarction?

Periventricular venous infarction (PVI) is a common fetal stroke in which isolated subcortical injury may cause only motor deficits. However, cognitive, language, and behavioral deficits also occur. We hypothesized that ipsilesional cortical gray matter volumes are reduced in PVI.

How does atherosclerosis cause myocardial infarction?

The plaques that develop in atherosclerosis can rupture, causing a blood clot. The clot might block an artery and lead to sudden, severe myocardial ischemia, resulting in a heart attack. Rarely, a blood clot might travel to the coronary artery from elsewhere in the body.

What is the difference between ischemia and infarct infarction?

Ischemia denotes diminished volume of perfusion, while infarction is the cellular response to lack of perfusion.

What is a venous stroke?

The pressure can damage the brain tissue, leading to a stroke, causing symptoms such as numbness or weakness in the arm or legs and trouble with speaking, seeing and walking. This type of stroke is sometimes called a venous infarction.

What is venous bleeding?

Venous bleeding occurs when a vein is torn or cut. The blood will look dark red and ooze out of the body, moving steadily and slowly. It won’t shoot out like arterial blood. Although venous bleeding looks different, it can be just as serious as arterial bleeding.

What is cerebral venous infarction?

Cerebral venous infarction: the pathophysiological concept Cerebral venous occlusion represents an often underdiagnosed cause for acute or slowly progressive neurological deterioration.

What are the effects of cerebral venous occlusion?

Elevated cerebral venous pressure due to cerebral venous occlusion can result in a spectrum of phenomena including a dilated venous and capillary bed, development of interstitial edema, increased cerebrospinal fluid production, decreased cerebrospinal fluid absorption and rupture of venous structures (hematoma).

When should venous sinus thrombosis be considered as an infarct?

It should be considered in infarcts (with or without hemorrhage) which do not correspond to a typical arterial territory 1. No particular factors have been identified in patients predisposed to venous infarct / hemorrhage following venous sinus thrombosis.

What are the possible complications of a retinal vein occlusion?

Vascular occlusions lead to serious complications in any organ system: in the eye, early diagnosis and prompt treatment are important. Most retinal vein occlusions are secondary to systemic diseases, most frequently to systemic arterial hypertension.

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