Intravenous labetalol vs. oral nifedipine in control of hypertensive emergencies in severe pre-eclampsia and eclampsia: a randomized control trial
DOI:
https://doi.org/10.18203/2320-1770.ijrcog20213479Keywords:
Preeclampsia, Eclampsia, Labetalol, NifedipineAbstract
Background: Pre-eclampsia is a disorder peculiar to human pregnancy and accounts for a considerable proportion of both maternal and perinatal deaths. This study was undertaken to compare the efficacy of labetalol versus nifedepine in the treatment of hypertensive crisis, maternal and fetal outcomes and also prevention of further complications in patients admitted to department of OBG, VIMS, Ballari.
Methods: Total 100 women with severe preeclampsia and eclampsia who were admitted in the labour room at the Vijayanagar institute of medical sciences, Ballari over a period ranging from April 2013 to September 2014 who fulfilled the inclusion and exclusion criteria were included in this Open Label, prospective, randomized study. Patients were allocated into two groups; group A and group B and managed with Intravenous labetalol and oral nifedipine respectively after proper history, examination and investigations.
Results: We found that less number of doses were required to achieve target blood pressure in labetalol group (2.4±0.99) compared to nifedipine group patients who required more number of doses. (2.56±0.84) Even with fixed dose regimen (VIMS Regimen) of labetalol, our study showed more rapid decrease in blood pressure to target level with labetalol group (36±14.85 min) compared to nifedipine group (68.1±27.64 min) which was statistically significant (p=0.000).
Conclusions: The goal of treatment is to maintain BP at a level that minimizes maternal cardiovascular and cerebrovascular risk. Labetalol is better than nifedipine in the management of hypertensive crisis in severe preeclampsia and eclampsia.
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References
Khan KS, Wojdyla D, Say L, Gülmezoglu AM, Van Look PF. WHO analysis of causes of maternal death: a systematic review. Lancet. 2006;367(9516):1066-1074.
Mammaro A, Carrara S, Cavaliere A. Hypertensive disorders of pregnancy. J Prenat Med. 2009;3(1):1-5.
Bertel O, Conen D, Radü EW, Müller J, Lang C, Dubach UC. Nifedipine in hypertensive emergencies. Br Med J (Clin Res Ed). 1983;286(6358):19-21.
RCOG Guidelins. Available at: https://www.rcog.org. uk/guidelines. Accessed on 20 May 2021.
ACOG practice bulletin. Diagnosis and management of preeclampsia, andeclampsia. Obstet Gynecol. 2002;99(1):159-65.
Moretti MM, Fairlie FM, Axl S, Khoury AD, Sibai BM. The effect of nifedipine therapy on fetal placental Doppler waveforms in preeclampsia remote from term. Am J Obstet Gynecol 1990;163:1844-8.
Raheem I, Saaid R, Omar S, Tan P. Oral nifedipine versus intravenous labetalol for acute blood pressure control in hypertensive emergencies of pregnancy: a randomised trial. BJOG 2012;119:78-85.
Vermillion ST, James AS, Roger BN, Chauhan SP. Intravenous labetalol for acute blood pressure in pregnancy. Am J Obstet Gynecol. 1999;181:858-61.
Shekhar S, Sharma C, Thakur S, Verma S. Oral nifedipine or intravenous labetalol for hypertensive emergency in pregnancy: a randomized controlled trial. Obstet Gynecol. 2013;122(5):1057-63.
Dhali B, Shi DD, Yang FZ, Zhou L, Wang N. Oral nifedipine vs. intravenous labetalol for treatment of pregnancy-induced severe pre-eclampsia. J Clin Pharm Ther. 2016;41(6):657-661.
Liu QQ, Yu YH, Gong SP, Huang LP. Clinical efficacy and perinatal outcome of nifedipine for severe preeclampsia: meta-analysis. Zhonghua Fu Chan Ke Za Zhi. 2012;47(8):592-7.
Heidi AD. Oral nifedipine and IV labetalol equally effective for hypertension in Pregnancy. BJOG. 2012;45:52-9.
Vigil-De Gracia P, Lasso M, Ruiz E, Vega-Malek JC, de Mena FT, López JC; or the HYLA treatment study. Severe hypertension in pregnancy: hydralazine or labetalol. A randomized clinical trial. Eur J Obstet Gynecol Reprod Biol. 2006;128(1-2):157-62.
Martin JN Jr, Thigpen BD, Moore RC, Rose CH, Cushman J, May W. Stroke and severe preeclampsia and eclampsia: a paradigm shift focusing on systolic blood pressure. Obstet Gynecol. 2005;105(2):246-54.
Katzung BG. The ergot alkaloids. Basic and clinical pharmacology, Katzung, 10th ed. USA: McGrawHill; 2007:270-4.