Aortic dissection is rare and more common in men. In women, it is more frequent during pregnancy, especially in the third trimester. We present the case of a 30-year-old pregnant woman diagnosed with type B aortic dissection at 29 weeks of gestation. Following the diagnosis, fetal maturation was initiated, and the patient was transferred to a tertiary care center. Due to uncontrolled hypertension and persistent pain, and after evaluating the maternal and fetal risk-benefit, a cesarean section was performed at 29 weeks and six days. During the postoperative period, a multi-drug regimen was required for blood pressure control, but the patient recovered and was discharged. Genetic testing, prompted by a family history of sudden death (brother) and aortic dissection (father), identified a mutation in the FBN1 gene, confirming Marfan syndrome. This case highlights the importance of comprehensive patient history, the challenges of aortic dissection during pregnancy, and the need for a multidisciplinary approach in these cases. 

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