Acute Myocarditis after COVID-19 vaccination: A case report.

INTRODUCTION: The etiology of myocarditis often remains undetermined. A large variety of infectious agents, systemic diseases, drugs, and toxins can cause the disease. We report the case of a 19-year-old man who developed myocarditis three days after Pfizer-BioNTech COVID-19 booster vaccination. CASE REPORT: A 19-year-old man, presenting with troponin-positive acute chest pain, was referred to our department. He had received the Pfizer-BioNTech COVID-19 vaccine three days prior to his admission. The diagnosis of acute myocarditis was confirmed by cardiovascular magnetic resonance imaging. Patient hemodynamic status remained stable during hospitalization. The left ventricular ejection fraction was preserved during hospital stay and at one-month follow-up. We found no evidence for another infectious or autoimmune etiology. CONCLUSION: Although imputability of the vaccine cannot be formally established on the basis of this case report, the findings raise the possibility of an association between mRNA COVID-19 vaccination and acute myocarditis.

[Particularities of African descent patient's electrocardiogram]. / Particularités de l'électrocardiogramme du patient d'origine Africaine.

Particularities of African descent patient's electrocardiogram have been described for many years. Variations such as higher QRS voltage, early repolarization pattern, precordial T-wave inversion and anterior ST segment elevation associated with T-wave inversion are more frequently observed. Ignorance of these variations can lead to misdiagnosis or therapeutic negligence. We present the electrocardiographic particularities attributed to the patient of African origin.

[Capillary leak syndrome secondary to decompression sickness: A case report]. / Syndrome de fuite capillaire secondaire à un accident de décompression : à propos d'un cas.

BACKGROUND: Capillary leak syndrome is a rare type of decompression sickness (DCS) that may be responsible for hypovolemic shock with edema. CLINICAL CASE: A 21-year-old amateur diver suffered from an inner ear DCS following air diving to 96msw. He presented subsequent deterioration with hypovolemia and facial edema secondary to capillary leak syndrome. DISCUSSION: In DCS, bubbles formation alters the wall of blood vessels and activates complex biochemical mechanisms inducing extravascular protein leakage. The clinical expression of this syndrome is variable, ranging from simple hemoconcentration to hypovolemic shock. Close clinical-biological monitoring of patients with elevated hematocrit with or without hypoalbuminemia is advisable. Early vascular filling with albumin infusion may prevent the occurrence of hypovolemic shock and improve the prognosis.

[Cardiovascular complications of doping products]. / Complications cardiovasculaires des produits dopants.

Doping is the use of a substance that artificially increases an individual's physical ability for competition purpose. Products and methods used in doping are not without risk, especially at cardiovascular level. Here we review the most common doping substances in sport and their cardiovascular consequences.