Postpartum preeclampsia management with furosemide: a randomized clinical trial. Treatment of hypertension in patients with pre-eclampsia: a prospective parallel-group study comparing dihydralazine with urapidil. Preventing the recurrence of atonic postpartum hemorrhage: a double-blind trial. [Management of severe pre-eclampsia/eclampsia. Comparison between nifedipine and hydralazine as antihypertensive agents]. A randomised placebo controlled trial of loop diuretics in moderate/severe pre-eclampsia, following delivery. A randomized comparison of early with conservative use of antihypertensive drugs in the management of pregnancy-induced hypertension. Acetazolamide and furosemide for posthemorrhagic hydrocephalus of the newborn. Nifedipine or hydralazine as a first-line agent to control hypertension in severe preeclampsia. Abbreviated postpartum magnesium sulfate therapy for women with mild preeclampsia: a randomized controlled trial.
This investigation was undertaken to estimate whether a brief postpartum course of furosemide for patients with preeclampsia benefits recovery and shortens hospitalization by enhancing diuresis, lessening severe hypertension, and reducing the need for antihypertensive therapy.
                Two hundred sixty-four patients with preeclampsia were enrolled. After spontaneous onset of postpartum diuresis and discontinuation of intravenous magnesium sulfate, patients were randomly assigned to receive either no therapy or 20 mg oral furosemide daily for 5 days with oral potassium supplementation. Patient outcomes were compared between treatment groups with regard to classification of hypertensive disease.
                Only postpartum patients with severe preeclampsia (n = 70) who received furosemide compared with controls had significantly lower systolic blood pressure by postpartum day 2 (142 +/- 13 mm Hg compared with 153 +/- 19 mm Hg, P < .004) and required less antihypertensive therapy during hospitalization (14% compared with 26%, P = .371) and at discharge (6% compared with 26%, P = .045). No benefit was shown for patients with mild preeclampsia (n = 169) or superimposed preeclampsia (n = 25). Neither length of hospitalization nor frequency of delayed postpartum complications was positively affected by the intervention.
                Brief postpartum furosemide therapy for patients with severe preeclampsia seems to enhance recovery by normalizing blood pressure more rapidly and reducing the need for antihypertensive therapy. Shortening of hospitalization and reduction of delayed postpartum complications were not benefitted. The primary objective of treatment in women with severe hypertension and pre-eclampsia is to prevent complications such as encephalopathy and haemorrhage. In many countries dihydralazine is considered the drug of choice for treating hypertension in pregnancy, because it now has been used safely for about 30 years, and the introduction of a new drug in pregnancy is a difficult task with partially unknown hazards. In some other countries combined alpha- and beta-blockers are also used. Taking into account that some patients with pre-eclampsia do not respond to dihydralazine and the drug has serious side-effects like headache and reflex tachycardia, there is some need for developing alternative treatment strategies using drugs that are more adequate for pregnancy than dihydralazine.
                Urapidil is a post-synaptic alpha 1 adrenoceptor antagonist, which is widely used to control hypertensive crises unrelated to pregnancy. Since it is known that pre-eclampsia is associated with increased sympathetic activity, administration of an alpha 1 adrenoceptor antagonist provides a reasonable therapeutic basis. So far there is only one report describing the i.v. use of urapidil in the treatment of hypertension in pregnancy unresponsive to dihydralazine and one report which describes the oral use of urapidil. In an earlier pilot study we examined the dose range for i.v. application of urapidil necessary for adequate blood pressure control in patients with pre-eclampsia. In the present randomized controlled study 26 white women with pre-eclampsia and hypertension in pregnancy were included. Treatment was not blinded. During the initial period of intensive intravenous treatment all subjects were under constant surveillance by a physician and a nurse.
                Effective prolonged control of blood pressure (values below 150/100 mmHg) was achieved in all patients of the two groups. In one patient of the dihydralazine group signs of lightheadedness and near syncope were noted. After this side-effect of dihydralazine the patient was treated with urapidil. At the end of the observation period the maternal heart rate in the dihydralazine group was higher than in the urapidil group.
                Since urapidil decreased the high blood pressure in patients with pre-eclampsia without serious side-effects urapidil appears preferable superior to dihydralazine. The haemodynamic effects of urapidil were more predictable than those of dihydralazine. The reduction of intracerebral pressure could be an additional advantage of urapidil in the treatment of patients with pre-eclampsia. We conducted a double-blind randomized controlled trial to compare a conventional regimen of oxytocin and ergometrine with administration of the prostaglandin E2 analogue, sulprostone, for prophylaxis of postpartum hemorrhage in high-risk women.
                Women with a history of postpartum hemorrhage > or = 1000 were assigned to two coded prophylactic regimens. Drugs, given respectively at delivery of the anterior shoulder and after delivery of the placenta, were oxytocin and ergometrine in the control group, and sulprostone and placebo in the experimental group. Eighty-one women, 69 of whom actually participated in the trial, were investigated. Both the women and the caregivers were unaware of treatment allocation.
                Although the trial was terminated prematurely there was a slight, but not statistically significant, preference for the sulprostone regimen in terms of blood loss and use of blood transfusion. No serious adverse effects were noted with either of the two regimens.
                Prostaglandins may be more effective for preventing recurrence of severe postpartum hemorrhage than the oxytocin and ergometrine combination, but they do not eliminate the risk entirely. The objective was to compare the fetal and maternal effects between parenteral hydralazine and sublingual nifedipine used like antihypertensive drugs in the management of severe preeclampsia. Study design was prospective, comparative, longitudinal, randomized clinical trial. It was carried out at Centro Medico Nacional IMSS Torreon, Coah. Gynecology and Obstetrics Department. The patients were women in the last trimester of pregnancy with severe preeclampsia were randomized to receive parenteral hydralazine or sublingual nifedipine as antihypertensive drugs. The only difference observed in this study was the Apgar of neonates whose mothers received hydralazine, that was significatively lesser than the Apgar of neonates whose mothers received nifedipine. Both medicaments are a good alternative as antihypertensive drugs in severe preeclampsia. Neonates whose mothers received Nifedipine had a higher Apgar. Nineteen patients with pre-eclampsia were randomised to receive 40 mg of frusemide or placebo by mouth daily for 7 days in the first post-partum week. Outcome measures included mean and maximum blood pressure, the need for additional antihypertensive treatment during that period and mean length of hospital stay. There were no statistically significant differences in outcome between the treatment and placebo groups although there was a trend to more rapid lowering of blood pressure following delivery in those receiving frusemide. Two treatment strategies were compared in 155 women with pregnancy-induced hypertension who were also given comprehensive non-pharmacological care. The mean gestation at entry was 28 weeks. As long as the diastolic blood pressure (DBP) remained below 106 mmHg, oxprenolol, or oxprenolol plus dihydralazine, were given to the early treatment group, and matching placebos to the control group. Open antihypertensive treatment was provided for patients whose DBP rose above 105 mmHg. Proteinuria occurred in seven women in each group. In the early treatment group, 13 of the 78 women were delivered by caesarean section; the corresponding numbers in the control group were 27 of 76 (17 vs 36%, 95% confidence interval (CI) of difference: 5-33%); the sections included seven and 16 in the early treatment and control groups, respectively, for severe hypertension and/or fetal distress. There were five perinatal deaths, two in the early treatment group and three in the control group. Early treatment did not influence gestational age at birth or birthweight. Respiratory distress syndrome occurred in four infants in the early treated group and in 10 in the control group; 14 infants in the former group and 26 in the latter were in hospital for more than 10 days (18 vs 35%; 95% CI of difference 4-32%). These results indicate that early antihypertensive treatment with oxprenolol is safe for the fetus and newborn in pregnancy-induced hypertension, but has no advantage over non-pharmacological care in terms of fetal growth. However, it may prevent acute hypertension in late pregnancy and associated fetal distress, and thus reduce the number of caesarean sections. The authors evaluated the efficacy of acetazolamide (ACZ) and furosemide (FUR) in avoiding ventricular shunting procedures in preterm infants with posthemorrhagic hydrocephalus (PHH) and increased intracranial pressure (ICP). Preterm infants were screened for PHH (defined as ventriculomegaly [VM] and increased ICP measured with the Ladd fiberoptic monitor). PHH infants were randomized to ACZ and FUR treatment or serial lumbar puncture (LP) and monitored until not receiving medications or having undergone shunting. Of 69 infants with IVH screened for the study, 39 never developed VM, 14 developed VM, without increased ICP, and 16 developed PHH. Ten PHH infants were randomized to ACZ and FUR treatment and six to serial LP. Nine (90%) of the 10 infants assigned to the ACZ and FUR group avoided shunting. Nephrocalcinosis developed in a significant proportion of treated infants. Three (50%) of the six LP group infants did not require shunting procedures (P = 0.118). The authors conclude that ACZ and FUR therapy is useful in the treatment of preterm infants with PHH. Because a significant number of infants treated with both ACZ and FUR developed nephrocalcinosis, close monitoring for increased calcium excretion in the urine, or use of ACZ without FUR, is advised. Pre-eclampsia is one of the most serious and common complications of pregnancy. Nifedipine, a calcium channel blocker, and the vasodilator hydralazine have both been used as antihypertensive agents in this condition. The aim of this study was to determine which of these two agents is the most appropriate antihypertensive in the management of severe pre-eclampsia.
                One hundred and twenty-six pre-eclamptic patients with a gestational age of more than 20 weeks were randomized to receive either 8 mg nifedipine sublingually or 5-10 mg intravenous hydralazine. Women with a history of heart failure and women receiving antihypertensive treatment during the course of the current pregnancy were excluded. For each patient the following data were recorded; the number of drug administrations, the time needed to control blood pressure, mean urinary output, the time interval between effective control and a new hypertensive crisis after each drug administration and relevant adverse effects in mother or fetus.
                Effective control of blood pressure was achieved in both treatment arms. Data analysis indicated significantly fewer drug administrations in the nifedipine arm of the study. The time interval before a new hypertensive crisis following initial effective control of blood pressure was significantly longer in the nifedipine group when compared with hydralazine. Effective control of blood pressure was achieved more rapidly in multiparous patients receiving nifedipine (p=0.026). Mean urinary output before and after delivery was greater in the nifedipine arm of the study. There were no significant differences between the two groups in other variables. In addition, in neither group were there any serious adverse effects in mother or fetus.
                Nifedipine is safe and more effective than hydralazine in controlling blood pressure in severe pre-eclampsia. It has the added advantage of being cheaper and more widely available than the latter and is easily administered. To determine whether women receiving 12-hour and 24-hour postpartum magnesium sulfate (MgSO4) therapy for mild preeclampsia have differing clinical courses.
                Consenting women with suspected mild preeclampsia were randomly assigned to 12 hours or 24 hours of MgSO4 postpartum therapy. Treatment was continued after the assigned time period if there was evidence of severe preeclampsia. The frequency of progression to severe disease and other outcomes were compared between study groups using the Fisher exact, chi2, and Student t tests where appropriate.
                Between January 2001 and August 2004, 200 women were enrolled. The 12-hour and 24-hour groups were similar in age, parity, delivered gestational age, anesthesia, and mode of delivery, as well as for proteinuria and blood pressure. In the 12-hour group, MgSO4 treatment was extended in seven women (6.9%) for progression to severe disease versus one (1.1%) in the 24-hour group (P = .07). Women who developed severe disease had higher blood pressures at the first prenatal visit (140/78 versus 122/69, P < or = .02 for systolic and diastolic pressures), at the time of randomization (152/88 versus 135/78, P < or = .03 for systolic and diastolic pressures), and were more likely to have insulin-requiring diabetes (27.3% versus 4.4%, P = .03). No 12-hour patients required treatment beyond 24 hours postpartum. There were no seizures, MgSO4 toxicity, or intolerance in either group.
                Twelve hours of postpartum MgSO4 therapy for mild preeclampsia is associated with infrequent disease progression and a clinical course similar to that with 24-hour therapy. Patients with chronic hypertension and insulin-requiring diabetes are at risk for progression to severe disease postpartum.
                ClinicalTrials.gov, www.clinicaltrials.gov, NCT00344058
                I.
For women with pre-eclampsia, postnatal furosemide may decrease the need for postnatal antihypertensive therapy in hospital, but more data are needed on substantive outcomes before this practice can be recommended. There are no reliable data to guide management of women who are hypertensive postpartum. Any antihypertensive agent used should be based on a clinician's familiarity with the drug. Future studies should include data on postpartum analgesics, severe maternal hypertension, breastfeeding, hospital length of stay, and maternal satisfaction with care.