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Table 2 Left atrial size and function

From: Transient left atrial dysfunction is a feature of Takotsubo syndrome

Variable TTS (n = 124) Anterior STEMI (n = 125) p
LA area 2-chamber view (cm2)
 Ventricular end-systole 21 (18–24) 22 (19–25) 0.03
 Ventricular end-diastole 14 (12–19) 14 (12–18) 0.78
LA area 4-chamber view (cm2)
 Ventricular end-systole 23 (20–28) 23 (20–27) 0.90
 Ventricular end-diastole 16 (12–20) 15 (12–19) 0.26
LA volume biplane (ml)
 Ventricular end-systole 72 (55–93) 74 (61–93) 0.36
 Immediately before atrial contractiona 56 (39–70) 55 (46–68) 0.71
 Ventricular end-diastole 38 (25–58) 38 (30–49) 0.67
LA function (%)
 Total EF (global function; reservoir) 44 (34–53) 51 (42–56) <0.01
 Passive EF (conduit)a 21 (14–30) 24 (20–29) 0.03
 Active EF (booster pump)a 29 (20–38) 35 (28–42) <0.01
  1. Values are median (IQR)
  2. EF emptying fraction, LA left atrial, TTS Takotsubo syndrome, STEMI ST-segment elevation myocardial infarction
  3. aPatients with atrial fibrillation during CMR imaging (n = 8 in the TTS group and n = 10 in the STEMI group) were excluded from this analysis
  4. P-values in bold type indicate a significant difference between groups