"Fontan procedure" meaning in English

{
  "etymology_text": "Initially described in 1971 by Dr. Francois Marie Fontan and Dr. Guillermo Kreutzer.",
  "forms": [
    {
      "form": "Fontan procedures",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Fontan procedure (plural Fontan procedures)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
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          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
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          "source": "w"
        }
      ],
      "glosses": [
        "A palliative surgical procedure used in children with complex congenital heart defects. It involves diverting the venous blood from the right atrium to the pulmonary arteries without passing through the morphologic right ventricle."
      ],
      "id": "en-Fontan_procedure-en-noun-~NlZ3cqD",
      "synonyms": [
        {
          "word": "Fontan"
        },
        {
          "word": "Kreutzer procedure"
        }
      ],
      "wikipedia": [
        "Fontan procedure"
      ]
    }
  ],
  "word": "Fontan procedure"
}

{
  "etymology_text": "Initially described in 1971 by Dr. Francois Marie Fontan and Dr. Guillermo Kreutzer.",
  "forms": [
    {
      "form": "Fontan procedures",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Fontan procedure (plural Fontan procedures)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "A palliative surgical procedure used in children with complex congenital heart defects. It involves diverting the venous blood from the right atrium to the pulmonary arteries without passing through the morphologic right ventricle."
      ],
      "wikipedia": [
        "Fontan procedure"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Fontan"
    },
    {
      "word": "Kreutzer procedure"
    }
  ],
  "word": "Fontan procedure"
}