Carditis is esophageal and caused by GERD; it is not gastric.
Chandrasoma
Parakrama
P
D002299:Cardia / Q000473:pathology*; D004942:Esophagitis, Peptic / Q000209:etiology / Q000473:pathology*; D004947:Esophagus / Q000473:pathology*; D005753:Gastric Mucosa / Q000473:pathology*; D005764:Gastroesophageal Reflux / Q000150:complications / Q000473:pathology*; D016481:Helicobacter Infections / Q000150:complications / Q000473:pathology; D006801:Humans; D009626:Terminology as Topic