{
  "meta": {
    "disclaimer": "Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated. We may limit or otherwise restrict your access to the API in line with our Terms of Service.",
    "terms": "https://open.fda.gov/terms/",
    "license": "https://open.fda.gov/license/",
    "last_updated": "2026-10-13"
  },
  "results": [
    {
      "term": "Premature Discharge of Battery",
      "count": 9337
    },
    {
      "term": "Adverse Event Without Identified Device or Use Problem",
      "count": 4262
    },
    {
      "term": "Over-Sensing",
      "count": 3149
    },
    {
      "term": "Signal Artifact/Noise",
      "count": 1894
    },
    {
      "term": "High impedance",
      "count": 1791
    },
    {
      "term": "Pacing Problem",
      "count": 1614
    },
    {
      "term": "Battery Problem",
      "count": 1601
    },
    {
      "term": "Incorrect, Inadequate or Imprecise Result or Readings",
      "count": 1580
    },
    {
      "term": "Failure to Capture",
      "count": 1215
    },
    {
      "term": "Under-Sensing",
      "count": 1121
    },
    {
      "term": "Interrogation Problem",
      "count": 1042
    },
    {
      "term": "Defective Device",
      "count": 932
    },
    {
      "term": "High Capture Threshold",
      "count": 769
    },
    {
      "term": "Failure to Read Input Signal",
      "count": 667
    },
    {
      "term": "Data Problem",
      "count": 467
    },
    {
      "term": "Use of Device Problem",
      "count": 464
    },
    {
      "term": "Low impedance",
      "count": 367
    },
    {
      "term": "Device Sensing Problem",
      "count": 287
    },
    {
      "term": "Insufficient Device Problem Information",
      "count": 238
    },
    {
      "term": "Connection Problem",
      "count": 207
    },
    {
      "term": "Off-Label Use",
      "count": 185
    },
    {
      "term": "Telemetry Discrepancy",
      "count": 155
    },
    {
      "term": "Migration",
      "count": 147
    },
    {
      "term": "Impedance Problem",
      "count": 136
    },
    {
      "term": "Material Integrity Problem",
      "count": 86
    },
    {
      "term": "Communication or Transmission Problem",
      "count": 80
    },
    {
      "term": "Device Displays Incorrect Message",
      "count": 76
    },
    {
      "term": "Nonstandard Device",
      "count": 64
    },
    {
      "term": "Extracardiac stimulation",
      "count": 51
    },
    {
      "term": "False Positive Result",
      "count": 51
    },
    {
      "term": "Patient-Device Incompatibility",
      "count": 49
    },
    {
      "term": "Inaccurate Synchronization",
      "count": 47
    },
    {
      "term": "Inappropriate or Unexpected Reset",
      "count": 42
    },
    {
      "term": "Difficult to Insert",
      "count": 35
    },
    {
      "term": "Unexpected Therapeutic Results",
      "count": 27
    },
    {
      "term": "Defibrillation/Stimulation Problem",
      "count": 24
    },
    {
      "term": "Failure to Sense",
      "count": 19
    },
    {
      "term": "Loose or Intermittent Connection",
      "count": 10
    },
    {
      "term": "Device Contaminated at the User Facility",
      "count": 9
    },
    {
      "term": "Human-Device Interface Problem",
      "count": 8
    },
    {
      "term": "Contamination /Decontamination Problem",
      "count": 7
    },
    {
      "term": "Failure to Select Signal",
      "count": 7
    },
    {
      "term": "Ambient Noise Problem",
      "count": 6
    },
    {
      "term": "Appropriate Device Problem Term/Code Not Available",
      "count": 5
    },
    {
      "term": "Device Contamination with Chemical or Other Material",
      "count": 5
    },
    {
      "term": "Malposition of Device",
      "count": 5
    },
    {
      "term": "Device Alarm System",
      "count": 4
    },
    {
      "term": "Device Dislodged or Dislocated",
      "count": 4
    },
    {
      "term": "Difficult to Remove",
      "count": 4
    },
    {
      "term": "No Audible Alarm",
      "count": 4
    },
    {
      "term": "No Apparent Adverse Event",
      "count": 3
    },
    {
      "term": "Application Program Problem",
      "count": 2
    },
    {
      "term": "Battery Problem: High Impedance",
      "count": 2
    },
    {
      "term": "Device Difficult to Program or Calibrate",
      "count": 2
    },
    {
      "term": "Device Operates Differently Than Expected",
      "count": 2
    },
    {
      "term": "Electrical Power Problem",
      "count": 2
    },
    {
      "term": "Inappropriate/Inadequate Shock/Stimulation",
      "count": 2
    },
    {
      "term": "Material Erosion",
      "count": 2
    },
    {
      "term": "Sensing Intermittently",
      "count": 2
    },
    {
      "term": "Contamination",
      "count": 1
    },
    {
      "term": "Device Contaminated During Manufacture or Shipping",
      "count": 1
    },
    {
      "term": "Device Remains Activated",
      "count": 1
    },
    {
      "term": "Electrical /Electronic Property Problem",
      "count": 1
    },
    {
      "term": "Failure to Convert Rhythm",
      "count": 1
    },
    {
      "term": "Failure to Deliver Energy",
      "count": 1
    },
    {
      "term": "Failure to Interrogate",
      "count": 1
    },
    {
      "term": "Failure to Transmit Record",
      "count": 1
    },
    {
      "term": "Fracture",
      "count": 1
    },
    {
      "term": "Improper or Incorrect Procedure or Method",
      "count": 1
    },
    {
      "term": "Loss of Threshold",
      "count": 1
    },
    {
      "term": "No Pacing",
      "count": 1
    },
    {
      "term": "Noise, Audible",
      "count": 1
    },
    {
      "term": "Output Problem",
      "count": 1
    },
    {
      "term": "Protective Measures Problem",
      "count": 1
    },
    {
      "term": "Use of Incorrect Control/Treatment Settings",
      "count": 1
    }
  ]
}