SPONTANEOUS DISSECTING ANEURYSM OF CORONARY-ARTERY IN A PREGNANT WOMAN AT TERM

We describe a case of spontaneous dissecting aneurysm of the circumfle x coronary artery in a 44-year-old primigravida at term with no vascul ar risk factors. Spontaneous coronary artery dissection is a very rare condition with a greater prevalence in women, postpartum in particula r. The left anterior descending artery is the most frequently affected . Histologically, the most common finding is a hematoma occupying the outer third of the media, resulting in complete compression of the tru e lumen. Arterial wall changes during pregnancy together with hemodyna mic factors, a lytic action of protease released from eosinophils, and intimal tears an the main hypotheses considered to explain the etiolo gy of spontaneous coronary artery dissection.