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Implantable Cardioverter Defibrillator (ICD) related disorders refer to complications or conditions associated with the use of an Implantable Cardioverter Defibrillator (ICD), a device designed to detect and treat life-threatening abnormal heart rhythms such as ventricular tachycardia and ventricular fibrillation. While ICDs are highly effective in preventing sudden cardiac death, they may occasionally lead to medical issues requiring attention.

Common ICD-related disorders include inappropriate shocks, where the device delivers electrical therapy unnecessarily due to sensing errors or non-dangerous rhythm changes. Lead malfunction is another concern, involving wire fracture, displacement, or insulation damage, which can affect device performance.

Infection at the implantation site or around the leads may occur, sometimes requiring device removal. Battery depletion, device recalls, or software malfunctions can also impact reliability.

Patients may experience psychological effects such as anxiety, depression, or fear of shocks after ICD implantation. Symptoms of complications may include chest discomfort, dizziness, palpitations, fever, or swelling near the device site. Diagnosis involves device interrogation, imaging, and clinical evaluation. Treatment depends on the problem and may include device reprogramming, medication adjustments, lead replacement, or surgical revision to restore safe and effective heart rhythm management.