Abstract
Objectives: To evaluate the effectiveness of Nifedipine in the treatment of pregnant women with threatened preterm labor with a gestational age of 22 - 36 weeks.
Methods: A cross-sectional descriptive study of 51 pregnant women diagnosed with threatened preterm labor at Da Nang Hospital for Women and Children from March 2022 to September 2023.
Results: The average age of pregnant women was 27.34 ± 6.37 years. The average gestational age was 30.15 ± 2.61 weeks. The rate of inhiniting uterine contractions was 82.4%. The rate of pregnancies prolonged ³ 48 hours and over one week in women diagnosed with TPL treated with Nifedipine was 82.4% and 78.5%, respectively. The treatment success rate in the group with uterine contraction frequency < 3 (95.0%) was higher than that in the group with uterine contraction frequency ≥ 3 (36.4%). The difference was statistically significant (p < 0.0001). There was a statistically significant difference in the rate of inhibition of uterine contractions by Nifedipine in the closed cervix group (89.6%) and 1 cm dilated cervix group (63.6%) compared to the 2cm dilated cervix group (28.6%) (p < 0.05). Headache was the most common adverse effect: 11.7%.
Conclusion: Nifedipine is highly effective and safe in the treatment of threatened preterm labor. The frequency of uterine contractions and the degree of cervical dilation are related to the effectiveness of inhibiting contractions.
Published | 2025-09-30 | |
Fulltext |
|
|
Language |
|
|
Issue | Vol. 15 No. 5 (2025) | |
Section | Original Articles | |
DOI | 10.34071/jmp.2025.5.22 | |
Keywords | cơn go tử cung, dọa sinh non, sinh non uterine contractions, threatened premature birth, premature birth |

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Copyright (c) 2025 Hue Journal of Medicine and Pharmacy
Waks AB, Martinez-King LC, Santiago G, Laurent LC, Jacobs MB. Developing a risk profile for spontaneous preterm birth and short interval to delivery among patients with threatened preterm labor. Am J Obstet Gynecol MFM. 2022 Nov;4(6):100727.
Crowther CA, Brown J, McKinlay CJD, Middleton P. Magnesium sulphate for preventing preterm birth in threatened preterm labour. Cochrane Database Syst Rev. 2014 Aug 15;2014(8):CD001060.
Songthamwat S, Na Nan C, Songthamwat M. Effectiveness of nifedipine in threatened preterm labor: a randomized trial. Int J Womens Health. 2018 Jun 15;10:317-23.
Lê Lam Hương, Trương Thị Linh Giang, Võ Hoàng Lâm, Ngô Thị Minh Thảo, Đặng Văn Tân, Nguyễn Minh Thắng. Khảo sát một số yếu tố nguy cơ doạ sinh non. Tạp chí Y Dược học - Trường Đại học Y Dược Huế. 2020; 5(10): 18-23.
Arman BM, Binder NK, de Alwis N, Nguyen HP, Vollenhoven B, Tong S, et al. Assessment of the tocolytic nifedipine in preclinical primary models of preterm birth. Sci Rep. 2023;13:5646.
Salazar-Castelblanco L, Restrepo-Jiménez P, Lasalvia P, Hernández-Tarapués F, Castañeda-Cardona C, Rosselli D. Efficacy and safety of atosiban in pregnant women diagnosed with threatened preterm labor: a systematic review of the literature with network meta-analysis. Rev Colomb Obstet Ginecol. 2018;69(4):270-302.
van Winden T, Roos C, Mol BW, Pajkrt E, Oudijk MA. A historical narrative review through the field of tocolysis in threatened preterm birth. Eur J Obstet Gynecol Reprod Biol X. 2024 Apr 29;22:100313.
Gowda VBT, Kalidoss M. Efficacy of oral nifedipine as a tocolytic agent. Int J Reprod Contracept Obstet Gynecol. 2021;10:3450-4.
Hồ Thuyên, Nguyễn Vũ Quốc Huy. Hiệu quả của hai phác đồ Magnesium Sulphate và Nifedipine trong điều trị dọa sinh non. Tạp Chí Phụ Sản. 2012;10(3);p.90-100.
Bộ Y tế. Doạ đẻ non và đẻ non. Hướng dẫn quốc gia về các dịch vụ chăm sóc sức khoẻ sinh sản. Nhà xuất bản Y học. 2015;tr.270-273.
Bùi Đặng Minh Trí, Bùi Đặng Lan Hương, Nguyễn Việt Thành. Hiệu quả cắt cơn gò tử cung và tác dụng không mong muốn của Nifedipine trong điều trị dọa sinh non. Tạp chí Y học Cộng đồng. 2023, 64(5): 19-26.
Ragunath MP, Sasmal D, Dhanaraj M. A study of nifedipine in the treatment of preterm labor of South Indian origin. Int J Pharm Res Scholar. 2012;1:34-8.
Klauser CK, Briery CM, Martin RW, Langston L, Magann EF, Morrison JC. A comparison of three tocolytics for preterm labor: a randomized clinical trial. J Matern Fetal Neonatal Med. 2014;27:801-6.
Ashraf B. Efficacy and safety of oral nifedipine with or without vaginal progesterone in the management of threatened preterm labor. Int J Reprod Biomed (Yazd). 2019 Sep;17(9):629-36.
Dương Công Bằng, Trần Thị Liên Hương, Lê Quang Thanh, Vương Thị Ngọc Lan. Hiệu quả cắt cơn gò tử cung của Nifedipine trong điều trị dọa sinh non tại Bệnh viện Từ Dũ. Y Học TP. Hồ Chí Minh. 2021; 25(1): 132-136.
Roos C, Spaanderman MEA, Schuit E, Bloemenkamp K, Bolte AC, Cornette J, et al. Effect of maintenance tocolysis with nifedipine in threatened preterm labor on perinatal outcomes: a randomized controlled trial. JAMA. 2013;309(1):41-7.
Habib S, Sadruddin S, Younus S. Study to determine the efficacy of nifedipine in inhibiting preterm labor. Pak J Med Health Sci. 2020;14(4):1380-5.
Walsh BS, Gardiner FW, Bloxsome D, Ford D, Mills BW, Laws SM. A cohort comparison study on women in threatened preterm labor given nifedipine or nifedipine and salbutamol tocolysis in air medical retrieval. Air Med J. 2022 May-Jun;41(3):298-302.
Maher MA, Sayyed TM, El-Khadry SW. Nifedipine alone or combined with sildenafil citrate for management of threatened preterm labour: a randomised trial. BJOG. 2019 May;126(6):729-35.
Zamani M, Alimi R, Arabi SM, Hosseini F, Aghaei A, Salehi E, et al. Comparison of the efficacy of nifedipine with ritodrine, nitroglycerine and magnesium sulfate for the management of preterm labor: a systematic review and meta-analysis. BMC Pregnancy Childbirth. 2024;24:318.
Huỳnh Thị Mỹ Liên, Phạm Thành Đức, Nguyễn Ngọc Thoa. Hiệu năng của Nifedipine trong điều trị dọa sinh non, Tạp Chí Phụ Sản. 2001; tr. 5 – 10.
Flenady V, Wojcieszek AM, Papatsonis DN, Stock OM, Murray L, Jardine LA, Carbonne B. Calcium channel blockers for inhibiting preterm labour and birth. Cochrane Database Syst Rev. 2014 Jun 5;2014(6):CD002255.