• Journal of hypertension · Dec 2005

    Intravenous use of the calcium-channel blocker nicardipine as second-line treatment in severe, early-onset pre-eclamptic patients.

    • Lidwien M Hanff, Arnold G Vulto, Pieter A Bartels, Daniella W E Roofthooft, Bas Nij Bijvank, Eric A P Steegers, and Willy Visser.
    • Department of Hospital Pharmacy, Rotterdam, The Netherlands. l.hanff@erasmusmc.nl
    • J. Hypertens. 2005 Dec 1;23(12):2319-26.

    ObjectiveTo evaluate the efficacy of intravenous administration of nicardipine as a second-line temporizing treatment in severe, early-onset, pre-eclamptic patients.DesignAn open, prospective, evaluation study.SettingA high-care obstetric ward in a tertiary care centre.PatientsTwenty-seven early-onset, pre-eclamptic patients with a median gestational age of 27 weeks 1 day (range, 21 weeks 2 days-32 weeks 4 days) with treatment failure on standard intravenous antihypertensive drugs (ketanserin, dihydralazin or labetalol).InterventionNicardipine infusion was started for temporizing management of pre-eclampsia at a dosage of 3 mg/h and was subsequently titrated according to blood pressure. Nicardipine treatment was continued for as long as the maternal and foetal conditions allowed.Main Outcome MeasuresThe endpoints of the study were defined as the percentage of patients reaching the target diastolic intra-arterial blood pressure (< 100 mmHg or < 90 mmHg in Haemolysis, Elevated Liver Enzymes, Low Platelet Count syndrome patients) within 1 h after the start of treatment, and the number of days of prolongation of pregnancy under nicardipine treatment. Maternal and foetal side effects, foetal death and neonatal outcome were assessed.ResultsIn all patients the target diastolic intra-arterial blood pressure was obtained within a median of 23 min (range, 5-60 min). Delivery was postponed for a median of 4.7 days (range, 1-26 days) using nicardipine treatment, in a maximum dosage ranging from 3 to 9 mg/h. Detailed haemodynamic parameters with corresponding nicardipine dosages were obtained in nine patients. In one-fifth of the patients, unwanted hypotensive periods were registered during treatment, manageable with dosage adaptation. Foetal well-being did not seem adversely affected.ConclusionThis evaluation shows that nicardipine is a potent antihypertensive drug and can be used for temporizing management in severe, early-onset pre-eclampsia when other antihypertensive drugs have failed.

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