Given the high risk of thrombosis in PNH, preventative treatment with warfarin decreases the risk of thrombosis in those with a large clone (50 of white blood cells type III).

Their presence implies thrombosis at a site of rapid blood flow that happened before death.

Venous return is the rate of blood flow back to the heart.

A PICC line or central venous catheter is often placed for this purpose.

This anomalous pulmonary venous return can be either partial (PAPVR) or total (TAPVR).

Forty percent of people with PNH develop thrombosis (a blood clot) at some point in their illness.

Venous stasis, or venostasis, is a condition of slow blood flow in the veins, usually of the legs.

This group has a high rate of thrombosis, and the risk of death of both mother and child are significantly increased (20 and 8 respectively).

The Bainbridge reflex, also called the atrial reflex, is an increase in heart rate due to an increase in central venous pressure.

See also Chronic venous insufficiency References External links Baylor College of Medicine Venogram procedure page, retrieved November 4, 2006 WebMD Venogram procedure page, retrieved November 4, 2006

During pregnancy, 60.4 of women are found to have extra genital conditions (specifically, anemia, genitourinary tract infections, endocrine system disorders, disorders of the circulatory system and venous system, etc.).

The electrodes have to be placed on the calf either both electrodes on one calf if the venous disease affects only one leg, or one electrode on each calf if the pathology concerns both legs.

Since the heart is a 'demand pump', that pumps out whatever blood comes back into it from the venous system, it is effectively the amount of blood returning to the heart that determines how much blood the heart pumps out ( Q ).

Pulsatile tinnitus is usually objective in nature, resulting from altered blood flow, increased blood turbulence near the ear (such as from atherosclerosis, venous hum, but it can also arise as a subjective phenomenon from an increased awareness of blood flow in the ear.