Twiddler's syndrome

Twiddler's syndrome
Chest radiograph showing twiddler's syndrome. The leads of the automated external defibrillator are wrapped around the device and can't be seen in the ventricle.
Specialty	Cardiology

Twiddler's syndrome is a malfunction of a pacemaker due to manipulation of the device and the consequent dislodging of the leads from their intended location. As the leads move, they stop pacing the heart and can cause strange symptoms such as phrenic nerve stimulation resulting in abdominal pulsing or brachial plexus stimulation resulting in rhythmic arm twitching.^[1]

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