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Table 1 Baseline characteristics

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

Variable TTS (n = 125) Anterior STEMI (n = 125) p
Age (years) 72 (61–78) 62 (51–72) <0.01
Female sex 115/125 (92) 36/125 (29) <0.01
Cardiovascular risk factors
 Hypertension 104/125 (83) 88/125 (70) 0.02
 Diabetes mellitus 31/125 (25) 28/125 (22) 0.66
 Hypercholesterolemia 26/125 (21) 40/125 (32) 0.06
 Current smoking 20/125 (16) 46/109 (42) <0.01
Killip-class 3 or 4 on admission 6/125 (5) 4/125 (3) 0.52
Stressful event 84/125 (67) -  
 Emotional 32/125 (26) -  
 Physical 52/125 (42) -  
Ballooning pattern
 Apical 83/125 (66) -  
 Midventricular 40/125 (32) -  
 Basal 2/125 (2) -  
Number of diseased vessels
 1 - 75/125 (60)  
 2 - 37/125 (30)  
 3 - 13/125 (10)  
TIMI flow grade 0 or 1 before PCI - 77/125 (62)  
TIMI flow grade 0 or 1 after PCI - 5/125 (4)  
Door-to-balloon time (minutes) - 27 (21–33)  
Pain-to-balloon time (minutes) - 220 (130–350)  
Initial LV ejection fraction (%) 47 (40–52) 50 (40–55) 0.18
Follow-up LV ejection fraction (%)a 60 (57–66) -  
  1. Values are n/N (%) or median (IQR)
  2. LV left ventricular, PCI percutaneous coronary intervention, STEMI ST-segment elevation myocardial infarction, TIMI Thrombolysis In Myocardial Infarction, TTS Takotsubo syndrome
  3. aAssessed with transthoracic echocardiography
  4. P-values in bold type indicate a significant difference between groups