{
  "url": "https://dantelabs.com/traits/polymorphic-ventricular-tachycardia",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "polymorphic-ventricular-tachycardia",
    "id": "HP:0031677",
    "name": "Polymorphic ventricular tachycardia",
    "definition": "A type of ventricular tachycardia that is characterized by variable QRS complexes within each lead (i.e., QRS complexes may be different from beat to beat).",
    "synonyms": [],
    "systems": [
      {
        "slug": "abnormality-of-the-cardiovascular-system",
        "name": "Abnormality of the cardiovascular system",
        "url": "https://dantelabs.com/traits/abnormality-of-the-cardiovascular-system"
      }
    ],
    "broader": [
      {
        "slug": "ventricular-tachycardia",
        "name": "Ventricular tachycardia",
        "url": "https://dantelabs.com/traits/ventricular-tachycardia"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "calm1",
        "symbol": "CALM1",
        "hgnc": "HGNC:1442",
        "name": "calmodulin 1",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/calm1"
      },
      {
        "slug": "casq2",
        "symbol": "CASQ2",
        "hgnc": "HGNC:1513",
        "name": "calsequestrin 2",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/casq2"
      },
      {
        "slug": "hcn4",
        "symbol": "HCN4",
        "hgnc": "HGNC:16882",
        "name": "hyperpolarization activated cyclic nucleotide gated potassium channel 4",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/hcn4"
      },
      {
        "slug": "tecrl",
        "symbol": "TECRL",
        "hgnc": "HGNC:27365",
        "name": "trans-2,3-enoyl-CoA reductase like",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/tecrl"
      },
      {
        "slug": "trdn",
        "symbol": "TRDN",
        "hgnc": "HGNC:12261",
        "name": "triadin",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/trdn"
      },
      {
        "slug": "calm2",
        "symbol": "CALM2",
        "hgnc": "HGNC:1445",
        "name": "calmodulin 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/calm2"
      },
      {
        "slug": "kcnj2",
        "symbol": "KCNJ2",
        "hgnc": "HGNC:6263",
        "name": "potassium inwardly rectifying channel subfamily J member 2",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcnj2"
      },
      {
        "slug": "kcnj5",
        "symbol": "KCNJ5",
        "hgnc": "HGNC:6266",
        "name": "potassium inwardly rectifying channel subfamily J member 5",
        "frequency": "occasional",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/kcnj5"
      }
    ]
  }
}