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            NHLBI’s health topics provide information to help you learn more about heart, lung, blood, and sleep conditions, diagnostic tests, and treatments.
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          Displaying **6 out of 102** results
        
      V
    Condition
      

      Vascular Dementia
  
  

  Vascular dementia is a common type of dementia caused by conditions that damage the blood vessels in the brain or interfere with proper blood flow and oxygen delivery to the brain.
    Condition
      

      Vasculitis
  
  

  Vasculitis is a group of rare conditions that can occur when you have swelling in the walls of your blood vessels. This can lead to serious health problems.
    Condition
      

      Venous Thromboembolism
  
  

  Venous thromboembolism is a condition in which you have blood clots in your veins. The blood clots can block blood flow to your lungs (called a pulmonary embolism). A deep vein thrombosis (DVT) occurs when a blood clot form in a deep vein, usually in the leg.
    Test
      

      Ventilator/Ventilator Support
  
  

  A ventilator is a machine that blows air — or air with extra oxygen — into the lungs. You may need to be put on a ventilator if you have a condition that makes it very hard for you to breathe.
    Condition
      

      Vitamin B12–Deficiency Anemia
  
  

  Vitamin B12-deficiency anemia is a condition in which the body can't make enough healthy red blood cells because it doesn't have enough vitamin B12.
  W
    Condition
      

      Wolff-Parkinson-White Syndrome
  
  

  Wolff-Parkinson-White syndrome is a problem with the heart’s electrical system that controls the heartbeat that can make the heart beat too quickly or with an irregular rhythm.
  
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                  Resources


Clinical Trials
      
            The NHLBI leads and supports many clinical trials to help find new ways to prevent, detect, and treat heart, lung, blood, and sleep disorders.
      
    
            Find NHLBI clinical trials that are currently enrolling participants.


Fact Sheets and Handouts
      
            The NHLBI develops materials for patients and health professionals on many heart, lung, blood, and sleep conditions. Information from the NHLBI is based on the latest scientific findings.
      
    
            Explore the NHLBI’s publications and resources. Back To Top Link
  

        

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