Table 1 Data of the study subjects and univariate logistic regression analysis for AHF secondary to SVT in neonates

Female gender, n (%)

9(52.9)

17(65.4)

1.68

0.48–5.85

0.42

Gestational age (wk)

37.2 ± 2.9

36.4 ± 3.2

1.09

0.88–1.36

0.41

Birth weight (g)

3018.5 ± 717.8

2997.5 ± 789.5

1.0

0.99-1.00

0.93

Age at diagnosis (d)

9.29 ± 8.75

8.69 ± 11.37

1.01

0.95–1.07

0.85

Prematurity, n (%)

6(35.3)

12(46.2)

0.64

0.18–2.24

0.48

Birth asphyxia, n (%)

2(11.8)

1(3.8)

3.33

0.28–39.98

0.34

Urgent cesarean rate, n (%)

13(76.5)

20(76.9)

0.98

0.23–4.14

0.97

Fetal distress, n (%)

5(29.4)

8(30.8)

0.94

0.25–3.56

0.93

Prenatal tachyarrhythmia, n (%)

3(17.6)

9(34.6)

0.41

0.09–1.79

0.23

Maternal systemic disease,n (%)

8(47.1)

11(42.3)

1.21

0.35–4.15

0.76

Time to initial control of tachycardia (h)

18.1 ± 9.7

13.1 ± 8.9

1.06

0.99–1.14

0.09

Time to initial control of tachycardia > 24 h, n (%)

8(47.1)

4(15.4)

4.89

1.17–20.41

0.03*

Comorbid conditions, n (%)

 Congenital heart disease

9(52.9)

11(42.3)

1.53

0.45–5.25

0.49

  Acyanotic lesions

   ASD

4(23.5)

1(3.8)

7.69

0.78–76.08

0.08

   PDA

3(17.6)

6(23.1)

0.71

0.15–3.35

0.67

   ASD + VSD

0

1(3.8)

-

-

-

   PDA + ASD

0

3(11.5)

-

-

-

   ASD + VSD + PDA

1(5.9)

0

-

-

-

  Ebstein anomaly

1(5.9)

0

-

-

-

 Electrolyte disorders, n (%)

11(64.7)

16(61.5)

1.15

0.32–4.08

0.83

  Hyperkalemia

6(35.3)

2(7.7)

6.55

1.14–37.75

0.04*

  Hypokalemia

3(17.6)

5(19.2)

0.9

0.19–4.38

0.89

  Hypernatremia

2(11.8)

3(11.5)

1.02

0.15–6.86

0.98

  Hypocalcemia

7(41.2)

14(53.8)

0.6

0.174–2.065

0.42

 Other systemic diseases, n (%)

16(94.9)

19(73.1)

5.89

0.65–53.11

0.11

 Hypoproteinemia,n (%)

6(35.3)

8(30.8)

1.23

0.34–4.49

0.76

 Anemia,n (%)

7(41.2)

3(11.5)

5.37

1.15–25.11

0.03*

 Acidosis,n (%)

5(29.4)

3(11.5)

3.19

0.65–15.70

0.15

 Hypoxemia,n (%)

10(58.8)

10(38.5)

2.29

0.66–7.96

0.19

BNP(pg/ml)

3371.87 ± 1749.19

1557.68 ± 1816.17

1.001

1.000-1.001

0.01*

Digitalis, n (%)

10(58.8)

13(50.0)

1.43

0.42–4.91

0.57