# A Case of Popliteal Venous Aneurysm Diagnosed after Sudden Cardiac Arrest

## TL;DR

A rare case of popliteal venous aneurysm was found to cause sudden cardiac arrest due to a pulmonary embolism.

## Contribution

This case highlights the rare link between popliteal venous aneurysm and sudden cardiac arrest.

## Key findings

- PVA was identified as the cause of sudden cardiac arrest due to pulmonary embolism.
- Surgical repair led to an uneventful recovery with no complications at 1-year follow-up.
- Screening below the knee is recommended when investigating sudden cardiac arrest.

## Abstract

A popliteal venous aneurysm (PVA) is a rare vascular disorder. We report a case of PVA discovered through further evaluation of sudden cardiac arrest (CA) caused by a pulmonary embolism (PE). It is well-known that PVA causes PE; however, there are few reports of PVA causing CA. A tangential aneurysmectomy and lateral venorrhaphy were performed. The patient’s postoperative course was uneventful. When contrast-enhanced computed tomography is performed to search for the cause of CA, PVA should be considered and thus, screening below the knee is recommended. At 1-year follow-up, there were no complications.