Pacemaker lead thrombosis - a rare cause of breathlessness

Area of Science:

• Cardiology
• Thoracic Surgery
• Medical Complications

Background:

• Pacemaker insertions are increasing for cardiac arrhythmias.
• Common complications like infection and lead displacement are discussed pre-procedure.
• Rare complications, such as superior vena cava syndrome, are often overlooked in patient consent.

Observation:

• A 69-year-old male with a dual-chamber pacemaker developed symptoms of superior vena cava obstruction (SVCO) five years post-insertion.
• The patient experienced a right-sided chylothorax, requiring drainage.
• Surgical intervention included SVC repair and thrombectomy, with partial success and recurrence of SVCO.

Findings:

• Superior vena cava obstruction (SVCO) is a rare but serious complication of pacemaker insertion.
• Management is complex, involving multiple specialists and often leading to persistent symptoms.
• A low-fat diet was initiated to manage chylothorax, with the patient remaining stable but with residual pleural effusion and thickening.

Implications:

• Superior vena cava obstruction (SVCO) should be explicitly discussed during the informed consent process for pacemaker procedures.
• Increased awareness and discussion of rare complications can improve patient preparedness and management strategies.
• Multidisciplinary care is essential for managing complex pacemaker-related complications.