Carditis (pl. carditides) is the inflammation of the heart.It is usually studied and treated by specifying it as:
Pericarditis is the inflammation of the pericardium
Myocarditis is the inflammation of the heart muscle
Endocarditis is the inflammation of the endocardium
Pancarditis, also called perimyoendocarditis, is the inflammation of the entire heart: the pericardium, the myocardium and the endocardium
Reflux carditis refers to a possible outcome of esophageal reflux (also known as GERD), and involves inflammation of the esophagus/stomach mucosa


== References ==
Formula
Mathematically:

  
    
      
        p
        =
        
          
            F
            A
          
        
        ,
      
    
    {\displaystyle p={\frac {F}{A}},}
  where:

  
    
      
        p
      
    
    {\displaystyle p}
   is the pressure,

  
    
      
        F
      
    
    {\displaystyle F}
   is the magnitude of the normal force,

  
    
      
        A
      
    
    {\displaystyle A}
   is the area of the surface on contact.Pressure is a scalar quantity.