Abstract
Background: Pregnancy-associated spontaneous coronary artery dissection (P-SCAD) is defined as SCAD occurring during pregnancy or within 3 months post-partum. Earlier systematic reviews have suggested a high maternal and fetal mortality rate. Aim: We undertook a structured systematic review of P-SCAD demographics, management and maternal and fetal outcomes. Methods: Case study identification was conducted according to PRISMA guidelines, with screening of all published P-SCAD cases not meeting pre-defined exclusion criteria. Of two hundred and seventy-three publications screened, one hundred and thirty-eight cases met inclusion criteria. Cases were allocated to one of three time periods; 1960-85 (twenty cases) reflecting early management of P-SCAD, 1986-2005 (forty-two cases) reflecting recent management, and 2006-16 (seventy-six cases), reflecting contemporary management. Results: The only significant demographic change in women experiencing P-SCAD over the last 50 years was an increasing proportion of primigravidas (p = 0.03). Management and outcomes, however, have altered significantly. Emergent angiography (p < 0.0001), reduced thrombolysis (p = 0.006) and increasingly conservative or percutaneous management (p < 0.0001) are associated with dramatic reductions in maternal mortality (85% in earliest reports to 4% in the last decade, p < 0.0001) and fetal mortality (50% in earliest reports to 0.0% in the last decade, p = 0.023). Conclusion: This systematic review of temporal changes in presentation, management and outcomes of P-SCAD represents the widest range of variables analysed in the largest cohort of P-SCAD patients to date. In the setting of earlier coronary angiography and increasingly conservative management, maternal and fetal survival rates continue to improve.
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