F. John Bourgeois

Thrombocytopenia in preeclampsia associated abnormalities and management principles

Severe thrombocytopenia, abnormal liver function, and renal dysfunction may occur as manifestations of preeclampsia. Failure to recognize that this cluster of abnormalities represents a form of preeclampsia may result in erroneous initial diagnoses. Management of 13 such patients has shown a direct correlation between the degree of thrombocytopenia and the measures of liver dysfunction. Platelet counts and liver functions improved prior to delivery in five patients treated with corticosteroids. Management should be directed toward investigation and correction of deranged physiology and appropriate monitoring of maternal-feto-placental status. Early delivery is indicated in patients with progressive thrombocytopenia and in those with evidence of fetal maturity or distress. Provided that the disease process remains stable, consideration should be given in cases of fetal immaturity, to the use of betamethasone therapy. The occurrence of severe thrombocytopenia in 20% of neonates should be a consideration in selecting the mode of delivery.

Magnesium sulfate and ritodrine hydrochloride: Systemic and uterine hemodynamic effects

Effects of magnesium sulfate and ritodrine hydrochloride on cardiovascular physiologic characteristics were studied in 70 human subjects treated for preterm labor. Systemic and uterine hemodynamic effects were investigated in five pregnant rhesus monkeys. Systolic blood pressure was minimally affected by either agent. Diastolic pressure, while not affected by magnesium sulfate, decreased 26.3% during ritodrine therapy. Maternal and fetal heart rates were minimally affected by magnesium sulfate. Ritodrine increased maternal and fetal heart rates significantly. In the monkeys, magnesium sulfate increased uterine and placental blood flows (by the microsphere technique) but failed to alter cardiac output. Ritodrine produced an increase in cardiac output but decreased perfusion pressure. Placental blood flow decreased by an average of 27.6%. Ritodrine would therefore seem contraindicated with a compromised fetal environment. Magnesium sulfate, by not altering perfusion pressure, may have a beneficial effect on uterine hemodynamics. These specific and distinct differences in cardiovascular and hemodynamic effects should be considered when either magnesium sulfate or ritodrine is selected as a tocolytic agent.

The significance of fetal heart rate decelerations during nonstress testing

Over a 9-month time span, eight gravid women at high risk had fetal heart rate decelerations on nonstress tests (NSTs). This form of antepartum evaluation, the standard at our institution, was performed 918 times on 476 women during this period. Decelerations were required to be between 1 and 10 minutes in duration and less than 90 bpm, or greater than 40 bpm below baseline, for inclusion. Of the eight women (1.7% of the total tested), four had reactive and four nonreactive NSTs. All eight had contraction stress tests (CSTs) that were negative by definition. Of four women allowed to labor, two (50%) required cesarean section for fetal distress. Two instances of fetal death (25%) occurred during observation periods of 36 and 48 hours. Two infants were growth retarded, and two had abnormal cord positions. NSTs showing decelerations of this type, regardless of reactivity or of follow-up CST, are abnormal and should be viewed with alarm. In term pregnancy, such fetuses should be delivered. In preterm pregnancy with nonreactive NSTs, decelerations may also be valid grounds for delivery. Some discrimination is possible in preterm pregnancies when the NST is reactive.

Disruption of the Symphysis Pubis during Vaginal Delivery. A Case Report

Slight separation of the symphysis pubis during pregnancy is considered to be physiological and caused by hormonally induced ligamentous laxity. However, complete separation of the symphysis pubis during vaginal delivery is rare; the prevalence has been reported2,3,7,9 to range from one in 521 to one in 20,000. Separations of more than ten millimeters are usually associated with tenderness and difficulty with walking and are thought to be pathological3,5,7,9. In the current report, we describe the case of a patient who had a wide separation of the symphysis pubis during vaginal childbirth. To the best of our knowledge, this is the second reported case of disruption of the symphysis pubis during spontaneous vaginal delivery1. Our purpose is to emphasize that this type of disruption differs from other traumatic symphyseal diastases with respect to both natural history and treatment. A twenty-eight-year-old healthy woman (gravida two, para two) was transferred to our hospital after a vacuum-assisted vaginal delivery of a baby girl weighing eight pounds and fifteen ounces (four kilograms). Her previous delivery, three years earlier, had been spontaneous; there had been no need for forceps or vacuum assistance and no complications or …

Profound hypotension complicating magnesium therapy

Two preeclamptic women became profoundly hypotensive while receiving magnesium sulfate. No evidence of toxic levels was present in either. In both, preeclampsia-induced hypovolemia was extreme. That nontoxic magnesium levels can cause severe hypotension is an alarming possibility. Acknowledgment of this complication and expeditious reversal of the problem is essential.

Pancreatic adenocarcinoma in the pregnant patient

In this case report, the authors discuss the presentation and treatment of pancreatic adenocarcinoma in a pregnant woman. Pancreatic adenocarcinoma is extremely rare in the pregnant patient. Only three cases of pancreatic adenocarcinoma diagnosed antepartum have been reported.

Outpatient obstetric management of women with type I diabetes

Conventional obstetric management of diabetic women has frequently incurred extensive hospitalization. Although this approach improved perinatal results for these women and their infants, it is costly and cumbersome. The 3-year experience of an outpatient diabetic obstetric clinic is compared with the results obtained at the same facility during 5 previous years when hospitalization was used more extensively. Perinatal mortality and morbidity were not different in 51 type I diabetic women managed almost entirely as outpatients when compared with 58 similarly complicated diabetic patients receiving more conventional management. Mean prenatal admissions (1 vs 2, p = less than 0.01), mean prenatal hospital days (6 vs 12, p = 0.05), and prolonged delivery admissions of greater than 7 days (31% vs 69%, p = less than 0.01) were significantly less. Outpatient obstetric management of diabetic women efficiently decreases maternal morbidity without increasing infant morbidity and mortality.

Early versus late tocolytic treatment for preterm premature membrane rupture

The effect of tocolytic therapy before labor was evaluated in 33 pregnant women with preterm premature rupture of the membranes. Either intravenous magnesium sulfate or oral terbutaline was administered at the time of presentation. Intensive surveillance to detect signs of infection was carried out for all patients. In 29 of the patients in this treatment group who were seen at less than 34 weeks, a significantly longer prolongation of pregnancy was achieved when compared with 24 similar women treated after onset of labor in the hospital (169 hours versus 77 hours, p = 0.05). Duration of infant hospitalization was less for those mothers receiving tocolytic agents before labor. Maternal and infant infection were not different in the two groups; nor was the cesarean section rate. When this treatment group was compared with another control group of 96 women already in labor at presentation, the difference in time from admission to delivery was substantial, but it did not achieve statistical significance. In this group the rate of maternal infection was significantly higher, but newborn morbidity was not. Aggressive early treatment with tocolytic agents in pregnant women with preterm premature membrane rupture is more productive but not more dangerous than conservative management.