Abstract
BackgroundPregnancy-associated spontaneous coronary artery dissection (P-SCAD) is defined as SCAD occurring during pregnancy or within 3months post-partum. Earlier systematic reviews have suggested a high maternal and foetal mortality rate. We undertook a structured systematic review of P-SCAD demographics, management and maternal and foetal outcomes. MethodsCase 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. ResultsThe only significant demographic change in women experiencing P-SCAD over the last 50years was an increasing proportion of primigravidas (p=0.02). 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 foetal mortality (50% in earliest reports to 0.0% in the last decade, p=0.023). ConclusionThis 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 foetal survival rates continue to improve.
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