{
  "url": "https://dantelabs.com/traits/absent-p-wave",
  "trait": {
    "bundleId": "2026.10.18-8b139e39",
    "release": "2026-09-01",
    "slug": "absent-p-wave",
    "id": "HP:0033122",
    "name": "Absent P wave",
    "definition": "The P wave that normally precedes each QRS complex by a fixed PR interval of 120 to 200 milliseconds is not present.",
    "synonyms": [
      "Absence of P wave on electrocardiography"
    ],
    "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": "abnormal-p-wave",
        "name": "Abnormal P wave",
        "url": "https://dantelabs.com/traits/abnormal-p-wave"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "emd",
        "symbol": "EMD",
        "hgnc": "HGNC:3331",
        "name": "emerin",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/emd"
      },
      {
        "slug": "nppa",
        "symbol": "NPPA",
        "hgnc": "HGNC:7939",
        "name": "natriuretic peptide A",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/nppa"
      },
      {
        "slug": "scn5a",
        "symbol": "SCN5A",
        "hgnc": "HGNC:10593",
        "name": "sodium voltage-gated channel alpha subunit 5",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/scn5a"
      }
    ]
  }
}