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Updated: Jul 16, 2026

Quail Chorioallantoic Membrane - A Tool for Photodynamic Diagnosis and Therapy
Published on: April 28, 2022
[Cerebrovascular accident following photodynamic therapy]
J-C Quintyn1, N Massy-Guillement, G Brasseur
1Service d'ophtalmologie Centre Hospitalier Universitaire de Rangueil, Toulouse, France. jean-claude.quintyn@laposte.net
Introduction:
Severe complications following dynamic phototherapy are very rare. We report the case of a patient who went into a vigilant coma after a second dynamic phototherapy treatment.
Case Report:
A 75-year-old man reported to the ophthalmology consultation for subfoveal choroidal neovascularization of the right eye. The first course of phototherapy treatment was administered that day. After 3 months, persistent progression of angiographic lesions led to the decision to perform a second course of dynamic phototherapy. Twelve hours later, finger paraesthesia occurred, followed 1 h later by the onset of vigilant coma secondary to massive right frontoparietal ischemia. The patient died following complications of the coma.
Conclusion:
More severe complications have been described, in particular cases of syncope or chest pain with no infarction. It is thought that Verteporfin may have played a role in our patient's brain ischemia. As Verteporfin continues to be widely used, physicians must be alert to the possibility of serious adverse events associated with its use.
