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Related Experiment Video

Updated: Jun 15, 2026

Underwater Endoscopic Injection Sclerotherapy for Gastroesophageal Varices

Underwater Endoscopic Injection Sclerotherapy for Gastroesophageal Varices

Published on: August 1, 2025

Late stroke after foam sclerotherapy.

M Hahn¹, T Schulz, M Jünger

¹Dermatology Private Practice, Rottweil, Germany. mhahn@live.de

VASA. Zeitschrift Fur Gefasskrankheiten

|February 27, 2010

Summary

This summary is machine-generated.

Foam sclerotherapy for varicose veins can rarely cause delayed stroke. A case report highlights a stroke in a patient with an undiagnosed heart condition five days after treatment.

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Area of Science:

Vascular Surgery
Neurology
Cardiology

Background:

Foam sclerotherapy is a common treatment for varicose veins.
Neurological events after sclerotherapy are documented.
Patent foramen ovale (PFO) is a potential risk factor for paradoxical embolism.

Observation:

A 48-year-old female experienced a stroke five days after repeat polidocanol foam sclerotherapy.
The patient had an undetected patent foramen ovale.
The stroke symptoms were reversible.

Findings:

This is the third reported case of paradoxical embolism as a late complication of foam sclerotherapy.
Undiagnosed PFO may increase the risk of delayed neurological events post-sclerotherapy.

Implications:

Highlights the importance of screening for cardiac shunts before sclerotherapy.
Suggests considering PFO in patients experiencing delayed neurological events after foam sclerotherapy.
Informs clinical practice regarding potential late complications of varicose vein treatments.