[Unusual cause of acute coronary syndrome: Horton's disease].

The pathophysiology of acute coronary syndromes is in most cases due to the erosion or rupture of a plaque with consequent thrombotic obstruction of coronary artery. In a few cases, the mechanism is different, this not modifying the initial management but imposing special techniques for diagnosis and therapeutic management. We report a clinical case of a patient supported for an acute coronary syndrome, in a context of impaired general condition and biological inflammatory syndrome revealing a Horton's disease.

[Unusual cause of Takotsubo cardiomyopathy after pacemaker implantation].

Since its first description in Japan in 1990, Takotsubo (stress) cardiomyopathy has gained worldwide recognition. The disease is characterized by transient systolic and diastolic left ventricular dysfunction with a variety of wall-motion abnormalities. She predominantly affects elderly women and she is often preceded by an emotional or physical trigger.

[Difficulty in diagnosis of a cardiogenic shock with thrombotic and sub-occluded LAD. A train can hide another one!].

The pheochromocytome is a localized tumor at the level of the medullosurrenale in 85% of the cases. The clinical presentation is very variable. Severe Heart failure presentation can be the mode of revelation in 2% of the cases.

[Very late drug-eluting stent thrombosis by stent fracture].

The superiority of drug-eluting stents in reducing the risk of in-stent restenosis compared to bare-metal stents is no longer challenged. Nevertheless, the drug-eluting stents may carry long-term risk of late and very late stent thrombosis. The promoting factors of this complication are usually divided into three chapters depending on the patient, the procedure and the stent.