Retracted pacemaker lead (Twiddler syndrome)

Case contributed by Craig Hacking
Diagnosis certain

Presentation

Atypical palpitations.

Patient Data

Age: 60 years
Gender: Female

The single lead of the left-sided cardiac device is retracted, with the tip projected in the midline likely within the left brachiocephalic vein. Redundant lead is coiled at the superior margin of the generator.

Cardiomegaly with signs of left atrial enlargement. Left lower lobe atelectasis.

Case Discussion

Twiddler syndrome is due to patient (purposeful or inadvertent) manipulation of the pacemaker device, causing retraction of the lead and dysfunction. This pacemaker had to be revised.

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