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Table 4 Total prevalence of cardiac electrical abnormalities

From: Cardiac electrical abnormalities in childhood acute lymphoblastic leukemia survivors: a systematic review

Abnormalities

Bertrand et al. (2021) [50]

Brouwer et al. (2007) [51]

Halazun et al. (1974) [52]

Hau et al. (2019) [53]

Lipshultz et al. (1991) [3]

Pihkala et al. (1994) [49]

Velensek Prestor et al. (2000) [17]

Ram-meloo et al. (2000) [54]

Shim-momura et al. (2011) [55]

Steinherz et al. (1995) [48]

Turner-Gomes et al. (1996) [56]

Total

Author (date)

Heart rate

147

         

0

147

Participants

216

         

19

235

Prevalence

68%

         

0%

63%

Tachycardia

    

8

    

1

 

9

Participants

    

96

    

2

 

98

Prevalence

    

8%

    

50%

 

9%

Bradycardia

      

4

    

4

Participants

      

46

    

46

Prevalence

      

9%

    

9%

Prolonged QT

 

0

    

2

0

   

2

Participants

 

23

    

46

90

   

159

Prevalence

 

0%

    

4%

0%

   

1%

ST segment

  

2

  

0

10

 

1

  

13

Participants

  

172

  

9

45

 

61

  

287

Prevalence

  

1%

  

0%

22%

 

2%

  

5%

T waves

 

7

11

    

1

   

19

Participants

 

23

172

    

90

   

285

Prevalence

 

30%

6%

    

1%

   

7%

Pathological Q waves

 

0

2

        

2

Participants

 

23

172

        

195

Prevalence

 

0%

1%

        

1%

No sinus rhythm

 

0

     

3

   

3

Participants

 

23

     

89

   

112

Prevalence

 

0%

     

3%

   

3%

Ventricular tachycardia

    

4

 

2

0

   

6

Participants

    

89

 

46

89

   

224

Prevalence

    

4%

 

4%

0%

   

3%

Ventricular ectopy

    

12

    

1

 

13

Participants

    

96

    

2

 

98

Prevalence

    

13%

    

50%

 

13%

Atrial ectopy

    

3

      

3

Participants

    

96

      

96

Prevalence

    

3%

      

3%

Arrhythmias

   

27

       

27

Participants

   

511

       

511

Prevalence

   

5%

       

5%

Ventricular arrhythmias

         

2

 

2

Participants

         

2

 

2

Prevalence

         

100%

 

100%

Ventricular premature contractions

 

3

    

3

3

2

1

 

12

Participants

 

23

    

44

89

59

2

 

217

Prevalence

 

13%

    

7%

4%

3%

50%

 

6%

Prolonged QRS interval

       

1

   

1

Participants

       

90

   

90

Prevalence

       

1%

   

1%

Premature atrial contractions

       

4

   

4

Participants

       

90

   

90

Prevalence

       

4%

   

4%

Anormal AV conduction

 

0

         

0

Participants

 

23

         

23

Prevalence

 

0%

         

0%

Right bundle branch block

      

1

    

1

Participants

      

46

    

46

Prevalence

      

2%

    

2%

Abnormal P waves

  

17

        

17

Participants

  

172

        

172

Prevalence

  

10%

        

10%

Second-degree AV block type I

       

3

   

3

Participants

       

89

   

89

Prevalence

       

3%

   

3%

Low QRS voltage

  

14

  

3

 

1

   

18

Participants

  

172

  

8

 

90

   

270

Prevalence

  

8%

  

38%

 

1%

   

7%

Abnormal QRS axis

  

9

        

9

Participants

  

172

        

172

Prevalence

  

5%

        

5%

Low T voltage

  

15

        

15

Participants

  

172

        

172

Prevalence

  

9%

        

9%

Abnormal T axis

  

11

        

11

Participants

  

172

        

172

Prevalence

  

6%

        

6%

Total

147

10

64

27

27

3

12

16

3

5

0

341

Participants

216

138

1204

511

377

17

228

806

120

8

19

3861

Prevalence

68%

7%

5%

5%

7%

18%

5%

2%

3%

63%

0%

9%