J Clin Gynecol Obstet

Journal of Clinical Gynecology and Obstetrics, ISSN 1927-1271 print, 1927-128X online, Open Access

Article copyright, the authors; Journal compilation copyright, J Clin Gynecol Obstet and Elmer Press Inc

Journal website http://www.jcgo.org

Original Article

Volume 3, Number 2, May 2014, pages 55-61

Intracervical Foley Catheter Versus Vaginal Isosorbid Mononitrate for Induction of Labor in Women With Previous One Cesarean Section

**Table 1.** Maternal Characteristics
	Catheter group (n = 40)	IMN group (n = 40)	t-test	P value
BMI: body mass index.
Maternal age (years)	28.5 ± 3.48	28.3 ± 3.56	0.254	> 0.05
Parity	2.60 ± 0.67	2.50 ± 0.75	0.495	> 0.05
Gestational age (weeks)	40.0 ± 0.78	39.75 ± 0.84	0.125	> 0.05
BMI	29.7 ± 3.2	30.4 ± 2.9		> 0.05

Table 1. Maternal Characteristics

Catheter group (n = 40)

IMN group (n = 40)

t-test

P value

BMI: body mass index.

Maternal age (years)

28.5 ± 3.48

28.3 ± 3.56

0.254

> 0.05

Parity

2.60 ± 0.67

2.50 ± 0.75

0.495

> 0.05

Gestational age (weeks)

40.0 ± 0.78

39.75 ± 0.84

0.125

> 0.05

BMI

29.7 ± 3.2

30.4 ± 2.9

> 0.05

**Table 2.** Outcomes of Induction and Labor Dynamics
	Catheter group (n = 40)	IMN group (n = 40)	Chi square	P value
*t-test.
Initial Bishop score	3.90 ± 0.84	4.0 ± 0.72	0.572	> 0.05*
Bishop score after 12 h	5.95 ± 0.87 P < 0.001	6.00 ± 0.72 P < 0.001	0.280	> 0.05*
Time from initiation to active phase (h)	13.35 ± 3.26	13.69 ± 2.33	0.532	> 0.05*
Duration of the active phase (h)	8.05 ± 1.59	11.31 ± 2.11	7.80	< 0.001*
Duration of the second stage (min)	37.10 ± 13.54	52.90 ± 15.63	4.83	< 0.001*
Duration of the third stage (min)	10.90 ± 2.95	13.10 ± 2.53	3.58	< 0.01*
Augmentation
AROM	20	7
AROM and oxytocin	20	33	9.45	< 0.05
Induction to delivery interval	22.2 ± 4.99	26.1 ± 3.98	0.179	> 0.05*
Delivery within 24 h	32	19
Delivery between 24 and 36 h	8	21	9.14	< 0.05
Analgesia
None	28	29
Opiate	5	4
Epidural	7	7	0.13	> 0.05
Failed induction
No	28	29
Yes	12	11	0.061	> 0.05
Mode of delivery
Spontaneous vaginal delivery	28	29
Operative vaginal delivery	5	4
Caesarean section	7	7	0.13	> 0.05

Table 2. Outcomes of Induction and Labor Dynamics

Catheter group (n = 40)

IMN group (n = 40)

Chi square

P value

*t-test.

Initial Bishop score

3.90 ± 0.84

4.0 ± 0.72

0.572

> 0.05*

Bishop score after 12 h

5.95 ± 0.87
P < 0.001

6.00 ± 0.72
P < 0.001

0.280

> 0.05*

Time from initiation to active phase (h)

13.35 ± 3.26

13.69 ± 2.33

0.532

> 0.05*

Duration of the active phase (h)

8.05 ± 1.59

11.31 ± 2.11

7.80

< 0.001*

Duration of the second stage (min)

37.10 ± 13.54

52.90 ± 15.63

4.83

< 0.001*

Duration of the third stage (min)

10.90 ± 2.95

13.10 ± 2.53

3.58

< 0.01*

Augmentation

AROM

AROM and oxytocin

9.45

< 0.05

Induction to delivery interval

22.2 ± 4.99

26.1 ± 3.98

0.179

> 0.05*

Delivery within 24 h

Delivery between 24 and 36 h

9.14

< 0.05

Analgesia

None

Opiate

Epidural

0.13

> 0.05

Failed induction

Yes

0.061

> 0.05

Mode of delivery

Spontaneous vaginal delivery

Operative vaginal delivery

Caesarean section

0.13

> 0.05

**Table 3.** Maternal Adverse Effects and Neonatal Outcome
	Catheter group (n = 40)	IMN group (n = 40)	Chi square	P value
A.F.: amniotic fluid; FHR: fetal heart rate; PPH: postpartum hemorrhage.
Uterine rupture	0	0	-	-
Hypotension requiring treatment	2	4	0.396	> 0.05
Meconium stained A.F.	1	2	0.556	> 0.05
Abnormal FHR	2	4	0.396	> 0.05
PPH	7	14	3.16	> 0.05
Headache	3	10	4.501	< 0.05
Palpitation	2	5	1.41	> 0.05
Nausea and vomiting	1	3	1.05	> 0.05
Puerperal pyrexia	12	5	4.76	< 0.05
Apgar score at 5 min
4-6	12	20
7-8	16	10
> 8	12	10	3.57	> 0.05
Neonatal weight
2.5 - 3 kg	20	24
3.1 - 3.5 kg	20	16	0.81	> 0.05
Admission to NICU	2	5	1.41	> 0.05

Table 3. Maternal Adverse Effects and Neonatal Outcome

Catheter group (n = 40)

IMN group (n = 40)

Chi square

P value

A.F.: amniotic fluid; FHR: fetal heart rate; PPH: postpartum hemorrhage.

Uterine rupture

Hypotension requiring treatment

0.396

> 0.05

Meconium stained A.F.

0.556

> 0.05

Abnormal FHR

0.396

> 0.05

PPH

3.16

> 0.05

Headache

4.501

< 0.05

Palpitation

1.41

> 0.05

Nausea and vomiting

1.05

> 0.05

Puerperal pyrexia

4.76

< 0.05

Apgar score at 5 min

4-6

7-8

> 8

3.57

> 0.05

Neonatal weight

2.5 - 3 kg

3.1 - 3.5 kg

0.81

> 0.05

Admission to NICU

1.41

> 0.05

**Table 4.** Maternal Acceptability
	Catheter group (n = 40)	IMN group (n = 40)	Chi square	P value
Overall discomfort with induction:
Moderate/high/extreme	6	8
None or slight	34	32	0.346	> 0.05
Overall satisfaction with induction:
Very or somewhat satisfied	36	33
Neutral or somewhat not satisfied	4	7	0.330	> 0.05
Would recommend the induction method to other women:
Highly or somewhat agree	35	36
Neutral or somewhat disagree	5	4	0.723	> 0.05

Table 4. Maternal Acceptability

Catheter group (n = 40)

IMN group (n = 40)

Chi square

P value

Overall discomfort with induction:

Moderate/high/extreme

None or slight

0.346

> 0.05

Overall satisfaction with induction:

Very or somewhat satisfied

Neutral or somewhat not satisfied

0.330

> 0.05

Would recommend the induction method to other women:

Highly or somewhat agree

Neutral or somewhat disagree

0.723

> 0.05