Takotsubo Cardiomyopathy: Likelihood Ratios

Introduction: also known as Broken Heart Syndrome. This represents a transient cardiomyopathy caused, we think, by a catecholamine surge. Classic findings on echocardiography are apical ballooning and a hyperdynamic base; the heart has the shape of an octopus trap, hence the name Takotsubo.

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The likelihood ratios of findings for Takotsubo Cardiomyopathy are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %.	Post-Test Probability (Predictive Value): %.	Switch to display mode.
Note that calculating probabilities from more than one** finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)


Finding	Result	+LR	-LR
[ + ] ST Elevation		No accuracy specified.
Study: no study specified.