Questions tagged [vein-venous]

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What is the expected life span of vascular stents?

What is the expected life span of vascular stents? For example: Universal (coronary/venous) stent WALLSTENT-UNI Boston Scientific, metal: nitinol = titanium + nickel. How many pulsating contractions ...
2
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0answers
60 views

Can blood flow destroy part of the metal stent in 10 to 40 years?

If a part of the metal stent has not grown into a vessel, can this part of the stent be washed out by the blood flow in 10 to 40 years (theoretically)? Also are such cases known that blood flow ...
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0answers
24 views

What causes external lower leg to visibly pulse?

I wonder what causes the lower leg(fibula side) to pulse visibly for few minutes after exercising/walking etc. If the pulse is synchronised with the hearth rate, is it more likely to be a vein or an ...
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0answers
50 views

Can any external stents (or something like this) be used to solve aorto-venous conflict (May-Thurner syndrome)?

Is there can be used any external stents or something like this to solve aorto-venous conflict (May-Thurner syndrome) or Nutcracker syndrome? For example, a stent consisting of ...
3
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0answers
73 views

Must one take anticoagulants lifelong after stenting of deep veins with a non-thrombotic lesion?

Must one take anticoagulants lifelong after stenting of deep veins with a non-thrombotic lesion, for example, aorto-venous conflict (May-Thurner syndrome)? Or is it enough to take anticoagulants only ...
2
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1answer
53 views

How many valves per distance are common in veins?

Veins have valves to prevent backflow of blood. I am looking for a value the indicates on average how far apart those valves would be. There are valves in most veins to prevent backflow. source ...
1
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1answer
33 views

What are the factors that make veins easy for a blood test one day, and difficult the next?

I take blood tests quite frequently, and most the time the technicians (Phlebotomists) spend a lot of time searching both my arms for a good vein. I pump my fists, and they smack my arms (and of ...
1
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0answers
38 views

Vascularization, good or bad for health/muscle growth

I have recently started at the gym and noticed an excessively flow of blood and bloated veins on my arm when I exercise them...I googled it...it says that is called vascularization but just that...and ...
2
votes
1answer
388 views

How long does it take for a body to get rid of blood clots and bubbles inside a cannula?

The blood clots and the small bubbles that are stuck inside my cannula enters my body. I asked a doctor and he said its OK if the bubbles are small and clots are not dangerous. Are these bubbles and ...
1
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0answers
23 views

Plausibility of 30 gauge draw?

What are the risks, complications, and problems associated with using a 30 gauge needle to draw blood from someone with otherwise average veins? What is the certainty of hemolysis and would it be even ...
1
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1answer
423 views

Tourniquet application on a venous bleed

A few weeks ago in class (EMT), we were discussing tourniquet application in instances where there is bleeding that couldn't be controlled by pressure. In most cases, a tourniquet will be used on a ...
2
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1answer
1k views

Effect of Blood donation needles on skin

I have donated my blood 3 times now...all three times at different hospitals. The first time, a very fine needle was used...almost similar to the one usually used in injection or to draw blood for ...