Roger-Luc Chayer (Pictures: Franceinfo & l’Est Républicain)
The day before yesterday, the world of cinema lost a beloved French actor, known for his roles as a « regular guy, » somewhat naïve. Michel Blanc passed away during a routine radiological examination. After the injection of a contrast agent, he experienced a severe allergic reaction, anaphylactic shock. Despite several resuscitation attempts following successive cardiac arrests, Mr. Blanc succumbed.
Contrast agents, also known as contrast media, are substances used in medical imaging to enhance the visibility of internal body structures during exams such as X-rays, computed tomography (CT scans), magnetic resonance imaging (MRI), or ultrasounds. They allow for better differentiation of organs, blood vessels, and tissues, thereby providing more precise images.
These products are divided into four main categories: iodinated products, gadolinium-based products, microbubble-based products, and barium-based products. In any case, these agents can cause allergic reactions ranging from mild to severe, such as the one that led to the death of Michel Blanc.
Can anaphylactic shocks be prevented?
Anaphylactic shock is a severe and sudden allergic reaction that occurs shortly after exposure to an allergen. It manifests as breathing difficulties due to constricted airways and swelling of the throat, as well as a sudden drop in blood pressure, which can cause dizziness or loss of consciousness. Other symptoms include itching, rash, nausea, and vomiting. If not treated quickly, this reaction can be fatal and requires immediate administration of epinephrine.
Preventing anaphylactic shock primarily relies on identifying allergens and avoiding them. This involves knowing the substances that can trigger an allergic reaction, whether they are foods, medications, or insect stings, and steering clear of them.
Would it have been possible for the technicians and medical staff present at the clinic during his examination to check if he was hyper-reactive to the intended product before administering it? Could they have injected a few drops under the skin to observe his reaction a few minutes before the examination? After all, we are in 2024, and we certainly have the means to test a product before injecting it to ensure that the patient will survive.
Of course, the investigation will reveal the protocols followed during his examination, but it is clear that the possibility of a severe allergic reaction was not detected in advance, and unfortunately, we know the result.
How to intervene in case of anaphylactic shock?
Anyone who knows they are allergic to nuts, peanuts, or bee stings, for example, is aware that anaphylactic shock can occur at any time and in any place. There is an injectable medication containing epinephrine, the EpiPen, which allergic individuals can carry at all times and use at the onset of an allergic reaction, while waiting for first responders or medical personnel to arrive and administer other medications aimed at controlling and neutralizing the crisis.
Was there such a device in the radiology office where Mr. Blanc’s examination was conducted? We will find out sooner or later, but the most important thing is to understand that this type of medical problem can be prevented, anticipated, and avoided.