Journal of Peking University (Health Sciences) ›› 2024, Vol. 56 ›› Issue (2): 260-266. doi: 10.19723/j.issn.1671-167X.2024.02.009

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Clinical characteristics of pregnancy complicated with inflammatory bowel disease

Huichao MA1,3,Jun LI2,Yongqing WANG1,*()   

  1. 1. Department of Obstetrics and Gynecology, Peking University Third Hospital; National Clinical Research Center for Obstetrics and Gynecology; Key Laboratory of Assisted Reproduction, Ministry of Education; Beijing Key Laboratory of Reproductive Endocrinolgy and Assisted Reproductive Technology, Beijing 100191, China
    2. Department of Gastroenterology, Peking University Third Hospital, Beijing 100191, China
    3. Department of Obstetrics and Gynecology, Ningjin County Hospital of Hebei, Xingtai 055550, Hebei, China
  • Received:2022-12-03 Online:2024-04-18 Published:2024-04-10
  • Contact: Yongqing WANG E-mail:mddoctor@163.com
  • Supported by:
    the National Key Research and Development Program of China(2022YFC2703504)

Abstract:

Objective: To analyze the clinical characteristics of patients with inflammatory bowel diseases (IBD) in pre-pregnancy, pregancy and loctation. Methods: The clinical data of pregnancy complicated with IBD in Department of Obstetrics and Gynecology of Peking University Third Hospital and deli-very from September 2011 to June 2022 were collected. The clinical characteristics of the patients were analyzed retrospectively. According to the state of diseases during pre-pregnancy, pregnancy and lactation, the patients were divided into active and remission group, and the two groups were compared interms of pre-pregnancy counseling, nutritional status, pregnancy and delivery complications, gestational week, mode of delivery, and neonatal outcome. Results: A total of 33 pregnant women with IBD were included in this study, of which 7 delivered a second child, for a total of 40 deliveries, with 36 natural pregnancies (90.0%) and 4 assisted reproductions (10.0%). Among the 40 cases, 21 cases (52.5%) were sustained in remission in pre-pregnancy, pregnancy and lactation, and 19 cases (47.5%) in disease activity, of which 8 cases (42.1%) were due to self-withdrawal of drugs or failure to take medicine regularly. Compared with the activity group, the disease remission group had a higher rate of pre-pregnancy counseling (57.1% vs. 15.8%, P=0.010), and higher levels of hemoglobin [(112.67±8.53) g/L vs. (102.84±5.23) g/L, P < 0.001], serum total protein [(66.58±6.34) g/L vs. (60.83±6.25) g/L, P=0.006], serum albumin [36.4 (35.1, 38.3) g/L vs. 34.3 (31.1, 35.6) g/L, P=0.006], serum calcium [(2.25±0.10) μmol/L vs. (2.13±0.15) μmol/L, P=0.004], but a lower incidence of gestational hypertensive disorders (0 vs. 31.6%, P=0.007). In 40 deliveries, there were 27 cases of vaginal delivery (67.5%), 13 cases of cesarean section (32.5%). The analysis of neonatal outcomes showed 38 full-term deliveries and 2 preterm deliveries; 1 case of macrosomia, 1 case of small-for-gestational-age, 1 case of low birth weight and 3 cases of birth defects. There were 10 newborns admitted to neonatal intensive care unit, including 4 cases of neonatal infections and 2 cases of neonatal jaundice. Conclusion: Pre-pregnancy counseling and evaluation of IBD patients are very important, and good pregnancy outcomes can be obtained through careful management during pregnancy in the most of the patients.

Key words: Inflammatory bowel diseases, Pregnancy outcome, Disease management, Pregnancy nutrition

CLC Number: 

  • R714

Table 1

Clinical characteristics of 33 patients with IBD before pregnancy"

Items Data
Age of illness/years 27.18±4.42
Montreal classification of UC
  E1 16 (48.49)
  E2 7 (21.21)
  E3 8 (24.24)
Montreal classification of CD
  A2L3B3 1 (3.03)
  A2L3B2 1 (3.03)
Family hereditary history
  Yes 3 (9.09)
  No 30 (90.91)
Smoking history
  Yes 4 (12.12)
  No 29 (87.88)
Previous extraintestinal manifestations
  Yes 6 (18.18)
  No 27 (81.82)
Bad history of pregnancy and birth
  Yes 3 (3.03)
  No 30 (96.97)

Table 2

General condition of 40 cases of pregnancy"

Items Data
Age of childbirth/years 32.58±3.54
Course of IBD/years 4 (3, 8)
Pre-pregnancy counseling
  Yes 15 (37.5)
  No 25 (62.5)
Assisted reproduction
  Yes 4 (10.0)
  No 36 (90.0)
State of the disease before pregnancy
  Remission period 33 (82.5)
  Active period 7 (17.5)
Drug treatment before pregnancy
  5-ASA (oral/topical/enema) 34 (85.0)
  Glucocorticoids 0
  Immunosuppressant 0
  Biological preparation 2 (5.0)
  Enteral nutrition or probiotics 7 (17.5)

Table 3

Pre-pregnancy counseling and nutritional status of IBD remission and active group"

Items Remission group (n=21) Active group (n=19) Statistics P
Pre-pregnancy counseling 12 (57.1) 3 (15.8) 0.010
Pre-pregnancy BMI/(kg/m2) 20.84±3.23 21.74±3.08 t=-0.892 0.378
Weight gain during pregnancy/kg 14.0 (10.0, 15.0) 15.0 (11.0, 16.5) Z=1.346 0.187
Hemoglobin/(g/L) 112.67±8.53 102.84±5.23 t=4.434 <0.001
Serum total protein/(g/L) 66.58±6.34 60.83±6.25 t=2.883 0.006
Serum albumin/(g/L) 36.4 (35.1, 38.3) 34.3 (31.1, 35.6) Z=-2.723 0.006
Blood calcium/(μmol/L) 2.25±0.10 2.13±0.15 t=3.025 0.004

Table 4

Complications of pregnancy and delivery in the IBD remission and active groups"

Items Total (n=40) Remission group (n=21) Active group (n=19) P
Premature rupture of membranes 5 (12.5) 3 (14.3) 2 (10.5) >0.999
Gestational diabetes mellitus 7 (17.5) 4 (19.0) 3 (15.8) >0.999
Hypertensive disorders of pregnancy 6 (15.0) 0 6 (31.6) 0.007
Fetal distress in uterus 4 (10.0) 2 (9.5) 2 (10.5) >0.999
Postpartum hemorrhage 6 (15.0) 5 (23.8) 1 (5.3) 0.186
Chorioamnionitis 2 (5.0) 0 2 (10.5) 0.219

Table 5

Pregnancy outcome and lactation in patients with IBD"

Items Remission group (n=21) Active group (n=19) Statistics P
Average length of stay/d 4.0 (3.0, 6.0) 8.0 (4.0, 14.0) Z=1.881 0.065
Gestational week of delivery 39.57 (38.71, 40.00) 39.18 (38.71, 39.86) Z=-0.978 0.333
Mode of delivery χ2=1.522 0.127
  Vaginal delivery 16 (76.19) 11 (57.90)
  Cesarean section 5 (23.81) 8 (42.10)
Neonatal condition
  Body mass/g 3 460 (3 320, 3 630) 3 250 (2 930, 3 450) Z=-1.924 0.054
  Body length/cm 49.86±1.77 48.47±2.88 t=-1.743 0.088
  Birth defect 2(9.52) 1 (5.26) >0.999
  Admitted to NICU 3 (14.29) 7 (36.84) 0.148
  Infection 1 (4.76) 3 (15.79) 0.331
  Normal growth and development 21 (100) 18 (97.74) 0.475
Lactation condition χ2=1.061 0.592
  Breast-feeding 15 (71.43) 12 (63.16)
  Mixed feeding 4 (19.05) 6 (31.58)
  Artificial feeding 2 (9.52) 1 (5.26)
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