Transient global amnesia during transoesophageal echocardiogram

Area of Science:

• Neurology
• Cardiology

Background:

• Transient global amnesia (TGA) is a neurological disorder characterized by temporary episodic memory loss.
• The exact causes and pathological mechanisms of TGA remain largely unknown.
• Potential triggers include physical activity, emotional stress, and medical procedures.

Observation:

• A 54-year-old woman experienced TGA immediately following a right-left shunt of saline contrast.
• This event occurred during a transoesophageal echocardiography procedure.
• This represents an uncommon presentation of TGA.

Findings:

• The case highlights a potential, previously unrecognized precipitating event for TGA.
• The use of saline contrast during echocardiography may be implicated in TGA.
• Further investigation into iatrogenic causes of TGA is warranted.

Implications:

• This case expands the understanding of potential TGA triggers.
• It suggests a need for vigilance regarding neurological side effects of contrast agents in echocardiography.
• Clinicians should consider iatrogenic causes when evaluating TGA episodes.