Transient left atrial dysfunction is a feature of Takotsubo syndrome

Table 4 Left atrial function in Takotsubo syndrome patients with impaired and already recovered left ventricular function

Variable	LV ejection fraction <55% (n = 95)	LV ejection fraction ≥55% (n = 29)	p
Total LA-EF (global function; reservoir)	42 (30–52)	51 (42–59)	<0.01
Passive LA-EF (conduit)^a	19 (14–29)	25 (20–35)	<0.01
Active LA-EF (booster pump)^a	28 (16–38)	30 (24–39)	0.12

Values are median (IQR)
EF emptying fraction, LA left atrial, LV left ventricular
^aPatients with atrial fibrillation during CMR imaging (n = 8) were excluded from this analysis, resulting in 89 patients with reduced and 27 patients with recovered LV ejection fraction
P-values in bold type indicate a significant difference between groups

ISSN: 1532-429X