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Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

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Pacemaker-Induced Superior Vena Cava Syndrome.

Michael N Zarrella¹, Kolu Wynne¹, Basel Saadeh¹

¹Internal Medicine, St Mary's Hospital, Waterbury, USA.

|January 15, 2025

Summary

Superior vena cava (SVC) syndrome, often caused by pacemakers, can be successfully treated with balloon angioplasty. Leadless pacemakers may prevent future SVC syndrome occurrences.

Keywords:

angiography and angioplasty balloon angiography permanent pacemaker (ppm) complication superior vena cava (svc) syndrome tachy-brady syndrome

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Area of Science:

Cardiology
Medical Devices

Background:

Superior vena cava (SVC) syndrome obstructs blood flow to the right atrium, causing head and neck venous congestion.
While traditionally linked to clotting disorders or tumors, SVC syndrome is increasingly associated with implantable cardiac devices like pacemakers.

Observation:

A patient with sick sinus syndrome developed SVC syndrome due to pacemaker lead formation.
This complication presented management challenges, requiring consideration of both the syndrome and the need for a cardiac device.

Findings:

The patient's SVC syndrome was effectively managed using a combination of invasive and noninvasive therapies.
Balloon angioplasty proved efficacious in treating this specific type of pacemaker lead-related SVC syndrome.

Implications:

This case underscores the importance of considering SVC syndrome in patients with implantable cardiac devices.
The successful use of balloon angioplasty and the potential of leadless pacemakers offer new therapeutic and preventive strategies for SVC syndrome.