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Table 3 ECG characteristics and vitals comparison between patients affected by TCM and MI

From: Takotsubo cardiomyopathy in India and its electrocardiography (ECG) comparison to myocardial infarction

ECG property (x)

Subtype

TCM (n1 total = 40)

MI (n2 total = 39)

p

  

n1 total %

No of Leads in TCM

n1%

n2 total %

n2%

ST elevation

Specific

16 (40%)

4 ± 2

13 (32.5%)

8 (20.51%)

3 (7.69%)

0.043

 

Diffuse

3 (7.5%)

5 (12.82%)

0.474

ST depression

Specific

12 (30%)

4 ± 2

6 (15%)

6 (15.38%)

4 (10.25%)

0.555

 

Diffuse

6 (15%)

2 (5.12%)

0.189

T Wave Inversion

Specific

16 (40%) 

7 ± 3

1 (2.5%)

11 (28.20%)

10 (25.64%)

0.004

 

Diffuse

15 (37.5%)

 

1 (2.56%)

0.001

Normal Q Wave

 

10 (25%)

3 ± 2

 

3 (7.69%)

 

0.086

Poor R progression

Specific

8 (20%)

 

5 (12.5%)

6 (15.38%)

6 (15.38%)

0.666

 

Diffuse

 

3 (7.5%) 

0 (0%) 

0.211

Conduction Abnormalities

AV Block

3 (7.5%)

 

3 (7.5%)

4 (10.25%)

1 (2.56%)

0.422

 

BBB

 

0 (0%)

3 (7.69%)

0.308

Sinus Tachycardia

 

6(15%)

  

 1 (2.56%)

 

0.120

Vital parameters

TCM (n1 total = 40)

MI (n2 total = 39)

Pulse rate (bpm)

85 ± 22(63, 107)

79 ± 8 (70, 87)

SBP (mm/Hg)

125 ± 32 (94, 157)

132 ± 30(102, 162)

DBP (mm/Hg)

76 ± 14(63, 90)

85 ± 13(72, 98)

  1. n1 total = Total number of Takotsubo Cardiomyopathy (TCM) cases
  2. n2 total = Total number of Myocardial Infarction (MI) cases
  3. n1 = TCM Cases with a subtype of (x) ECG Property
  4. n2 = MI Cases with a subtype of (x) ECG Property
  5. p values in bold are significant (< 0.05)
  6. AV atrioventricular, BBB Bundle Branch Block