{
  "id": 2926,
  "label": "atrioventricular block",
  "model": {
    "label": "Mondo Disease Ontology (MONDO)",
    "source": 0
  },
  "type_id": 0,
  "reference_id": "MONDO:0000465",
  "properties": {
    "xrefs": [
      "DOID:0050820",
      "HP:0001678",
      "ICD9:426.10",
      "MEDGEN:13956",
      "MESH:D054537",
      "SCTID:233917008",
      "UMLS:C0004245"
    ],
    "synonyms": [
      "AV block",
      "AV nodal block",
      "AVB",
      "atrioventricular block",
      "atrioventricular block (disease)"
    ],
    "categories": [
      {
        "ref": "MONDO:0004995",
        "name": "cardiovascular disorder"
      }
    ],
    "definition": "A heart block that is initiated in the atrioventricular node."
  },
  "isLeaf": false,
  "isRoot": false,
  "child_count": 4,
  "parents": [
    {
      "id": 3258,
      "label": "heart conduction disease",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        6967
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:10273",
          "ICD9:426.6",
          "SCTID:44808001"
        ],
        "synonyms": [
          "cardiac conduction disease",
          "cardiac conduction disorder",
          "conduction disease of heart",
          "disease of cardiac conduction",
          "disorder of cardiac conduction"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "A disease that has its basis in the disruption of the heart's electrical conduction system."
      },
      "child_count": 10,
      "reference_id": "MONDO:0000992"
    },
    {
      "id": 10115,
      "label": "atrioventricular dissociation",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        23795
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "HP:0011709",
          "ICD9:426.89",
          "MEDGEN:2496",
          "MESH:D006327",
          "OMIM:209600",
          "SCTID:50799005",
          "UMLS:C0004331",
          "icd11.foundation:268503599"
        ],
        "synonyms": [
          "atrioventricular dissociation",
          "atrioventricular dissociation (disease)",
          "A-V dissociation"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the sinoatrial node and the right atrium (sa block) or between atria and ventricles (av block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects."
      },
      "child_count": 2,
      "reference_id": "MONDO:0008848"
    }
  ],
  "children": [
    {
      "id": 2927,
      "label": "first-degree atrioventricular block",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        2926
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0050821",
          "ICD10CM:I44.0",
          "ICD9:426.11",
          "MEDGEN:43215",
          "NCIT:C62015",
          "SCTID:270492004",
          "UMLS:C0085614",
          "icd11.foundation:1438248929"
        ],
        "synonyms": [
          "AV block first degree",
          "atrioventricular block first degree",
          "atrioventricular block, first degree",
          "first degree AV block",
          "first degree atrioventricular block"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "A disorder characterized by an electrocardiographic finding of prolonged PR interval for a specific population. For adults one common threshold is a PR interval greater than 0.20 seconds."
      },
      "child_count": 0,
      "reference_id": "MONDO:0000466"
    },
    {
      "id": 2928,
      "label": "second-degree atrioventricular block",
      "isLeaf": false,
      "isRoot": false,
      "parents": [
        2926
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0050822",
          "ICD10CM:I44.1",
          "ICD9:426.13",
          "MEDGEN:75546",
          "NCIT:C111119",
          "SCTID:195042002",
          "UMLS:C0264906",
          "icd11.foundation:821174901"
        ],
        "synonyms": [
          "AV block second degree",
          "atrioventricular block second degree",
          "atrioventricular block, second degree",
          "second degree AV block",
          "second degree atrioventricular block"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "Intermittent failure of atrial electrical impulse conduction to the ventricles."
      },
      "child_count": 2,
      "reference_id": "MONDO:0000467"
    },
    {
      "id": 2929,
      "label": "third-degree atrioventricular block",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        2926
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:0050823",
          "ICD9:426.0",
          "MEDGEN:56230",
          "NANDO:2200214",
          "NCIT:C50501",
          "SCTID:27885002",
          "UMLS:C0151517",
          "icd11.foundation:1147105932"
        ],
        "synonyms": [
          "AV block third degree",
          "atrioventricular block complete",
          "atrioventricular block, third degree",
          "complete AV block",
          "complete atrioventricular block",
          "complete heart block",
          "non-congenital complete atrioventricular block",
          "third degree AV block",
          "third degree atrioventricular block"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "A disorder characterized by an electrocardiographic finding of complete failure of atrial electrical impulse conduction to the ventricles. This is manifested on the ECG by disassociation of atrial and ventricular rhythms. The atrial rate must be faster than the ventricular rate. (CDISC)"
      },
      "child_count": 0,
      "reference_id": "MONDO:0000468"
    },
    {
      "id": 10559,
      "label": "congenital heart block",
      "isLeaf": true,
      "isRoot": false,
      "parents": [
        2926
      ],
      "type_id": 0,
      "properties": {
        "xrefs": [
          "DOID:990",
          "GARD:0006164",
          "ICD10CM:Q24.6",
          "ICD9:746.86",
          "MEDGEN:57432",
          "MESH:C535758",
          "MedDRA:10019263",
          "NANDO:2200214",
          "NORD:1218",
          "OMIM:234700",
          "Orphanet:60041",
          "SCTID:46619002",
          "UMLS:C0149530",
          "icd11.foundation:1096954866"
        ],
        "synonyms": [
          "congenital atrioventricular block",
          "heart block, congenital"
        ],
        "categories": [
          {
            "ref": "MONDO:0004995",
            "name": "cardiovascular disorder"
          }
        ],
        "definition": "Heart block that occurs on or before 28 days of life."
      },
      "child_count": 0,
      "reference_id": "MONDO:0009326"
    }
  ],
  "roots": [
    {
      "id": 3258,
      "label": "heart conduction disease"
    },
    {
      "id": 10115,
      "label": "atrioventricular dissociation"
    }
  ]
}