Abstract
BackgroundSpontaneous coronary artery dissection and takotsubo cardiomyopathy are increasingly recognized in the last two decades. Case reports have shown both entities can present concomitantly - however, little is known about their association. MethodsIn this retrospective study we aimed to explore a potential association between SCAD and TCM using the Nationwide Inpatient Sample. The odds of having TCM among patients with SCAD compared with those who did not have SCAD were calculated as an odds ratio. Conversely, the odds of having SCAD among patients with TCM compared with those who did not have TCM were also calculated. The primary outcome was the odds of TCM among patients with a primary diagnosis of SCAD and vice versa. The secondary endpoint was the odds of in-hospital mortality among patients with SCAD, and/or TCM. ResultsHospitalized patients who had SCAD were 7.12 (95 % CI: 6.28–8.08) times more likely to also have TCM than those who did not have SCAD (p < 0.0001).), while patients with TCM were 6.91 (95 % CI: 6.07–7.85) times more likely to have SCAD compared to those who didn't have TCM adjusted for age, gender, race, hypertension, hyperlipidemia, and diabetes mellitus (p < 0.0001). ConclusionThis data indicate that patients with either SCAD or TCM are seven times more likely to be diagnosed concomitantly with both, compared to the patients without either diagnosis [after adjusting for age, gender, race, hypertension, hyperlipidemia, and diabetes mellitus]. Our data are consistent with the growing body of evidence supporting an association between SCAD and TCM and raise the question of a common pathophysiologic mechanism.
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More From: American Heart Journal Plus: Cardiology Research and Practice
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