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Biomedical subjects

K J Moise

Publications and source records attributed to K J Moise.

At least 19 recordsLinked to original sources

A randomized double-blind study comparing the fetal effects of sulindac to terbutaline during the management of preterm labor.

OBJECTIVE: The object of this study was to compare the fetal effects of sulindac and terbutaline used in the management of preterm labor on the ductus arteriosus, middle cerebral artery, renal artery, umbilical artery, fetal urine production, and amniotic fluid index. STUDY DESIGN: In a randomized, double-blind study 20 patients with preterm labor and no evidence of fetal structural anomalies or intra-amniotic infection received either sulindac (200 mg orally every 12 hours for 6 doses) or terbutaline (5 mg orally every 4 hours) for 72 hours of therapy. All medications were administered from identical blister packs. Opaque glucose base tablets were given at 4-hour intervals in the sulindac treatment arm to mimic the dosing interval in the terbutaline arm of the study. The Doppler pulsatility indices for the ductus arteriosus, middle cerebral artery, renal artery and umbilical artery and also the fetal urinary output were obtained at baseline and 5, 12, 24, 48, and 72 hours after the medication was started. Doppler data were analyzed within each group with raw data and between groups with the change in pulsatility indices from baseline. Statistical analysis was performed with the Kolmogorov-Smirnov test for normality, repeated measures analysis of variance, Mann-Whitney rank sum test, and Student t test as appropriate. P <.05 (2-tailed) was used to denote statistical significance. RESULTS: There were 10 patients in each group, with no difference in gestational age between the 2 groups (32.3 vs 31.7 weeks). Sulindac was stopped in 2 patients after severe ductal constriction was noted, in 1 at 12 hours and in the other at 24 hours. One patient at 33 weeks' gestation was delivered because of fetal distress after 46 hours of sulindac therapy. When analyzed across time within groups, the pulsatility index in the ductus arteriosus decreased significantly at 12 and 24 hours in the sulindac group but not the terbutaline group. No significant differences were noted in the middle cerebral artery, umbilical artery, renal artery, or fetal urinary output within either group over time. Significant differences in the change from baseline in pulsatility index of the ductus arteriosus between the sulindac and terbutaline groups were noted at 5, 12, 24, and 48 hours. A similar effect was noted in the change from baseline in pulsatility index of the middle cerebral artery at 48 and 72 hours. There was a significant decrease in the amniotic fluid index in both groups at 24, 48, and 72 hours. The amniotic fluid index in the sulindac group was significantly lower than that in the terbutaline group at 48 and 72 hours of therapy. CONCLUSIONS: Sulindac constricted the fetal ductus arteriosus, with an effect noted within 5 hours of starting therapy. The constriction, which resolved in all cases within 48 hours of discontinuing therapy, had minimal effects on the pulsatility index of the middle cerebral artery, renal artery, and umbilical artery. Sulindac and terbutaline both resulted in a significant reduction in the amniotic fluid index, with sulindac having a greater effect.

Amniotic Fluid

Ultrasonographically guided direct gene transfer in utero: successful induction of beta-galactosidase in a rabbit model.

OBJECTIVE: We sought to determine whether the transfer of enzyme-encoding genes in utero can be detected after birth. STUDY DESIGN: An adenoviral vector carrying the gene for beta-galactosidase was injected under ultrasonographic guidance into the livers of 4 rabbit fetuses per litter (3 litters total) at 27 days' gestation. On delivery of the pups 2 to 3 days later, the livers were analyzed for beta-galactosidase activity by using 5-bromo-4-chloro-3-indolyl-beta-D -galactopyranoside (X-gal) staining. Polymerase chain reaction was also performed on liver extracts as an additional independent measure of successful vector delivery. RESULTS: Successful targeting of the livers of fetal rabbits was demonstrated by beta-galactosidase activity in the nuclei of liver serosal cells, parenchymal hepatocytes, or columnar cells of the gallbladder in 7 (58%) of 12 injected pups and by polymerase chain reaction in liver extracts from 10 (83%) of 12 injected pups. CONCLUSIONS: These results suggest that vectors that carry genes for specific enzymes can be delivered to fetal organs in utero and that expression of the enzyme can be detected after delivery.

Adenoviridae

Simulated airplane flight increases plasma lactate in fetal rabbits.

We studied the effect of 9 h of simulated airplane cabin conditions at cruising altitude (8,000 feet; inspired oxygen equivalent to 15% O2 at sea level) on fetal plasma lactate in near-term pregnant rabbits. Controls (n = 19) spent 9 h at sea level (21% O2). Study group I (n = 21) experienced airplane cabin conditions. Study group II (n = 17) was studied at 8,000 feet with the inspired O2 concentration normalized to sea level. Study group III (n = 19) remained at sea level breathing 15% O2. Before ending each exposure, fetal blood sampling for lactate was performed under ultrasound guidance. Maternal lactates were obtained before and after sampling fetuses. Wilcoxon signed rank test, analysis of variance, and Bonferroni's method were used as appropriate. P < 0.05 denoted statistical significance. Study group I (altitude/hypoxia) had higher fetal lactates than controls (sea level/normoxia) and study group II (altitude/normoxia). Fetal lactates in study group I (altitude/hypoxia) were higher than in study group III (sea level/hypoxia). Maternal lactates were lower after fetal sampling. Fetal lactic acidemia was observed after 9 h of airplane cabin conditions. This was attributed to the combined effect of the lowered oxygen concentration and the decrease in atmospheric pressure.

Acidosis, Lactic

Detection of intrauterine viral infection using the polymerase chain reaction.

Intrauterine viral infection commonly presents as nonimmune hydrops fetalis or intrauterine growth restriction. Cytomegalovirus (CMV) and parvovirus are commonly recognized causes of fetal infection using serology and cultures. We used the polymerase chain reaction (PCR) to evaluate the frequency of fetal viral infection and the associated clinical course and outcome. Specimens (amniotic fluid, fetal blood, pleural fluid, tissue) from 303 abnormal pregnancies at risk for viral infection and 154 controls were analyzed using primers for CMV, herpes simplex virus, parvovirus B19, adenovirus, enterovirus, Epstein-Barr virus, and respiratory syncytial virus. Viral genome was detected in 144/371 samples (39%) or 124/303 patients (41%), with adenovirus (n = 74 patients; 24%), CMV (n = 30 patients; 10%), and enterovirus (n = 22 patients; 7%) most common. Only 4/154 (2.6%), unaffected control patients' samples were PCR positive. We conclude that diagnosis of fetal viral infection by PCR is common in abnormal pregnancies. Adenovirus and enterovirus may cause fetal infection that have been previously unrecognized.

DNA Primers

An animal model for hemolytic disease of the fetus or newborn in New Zealand white and New Zealand red rabbits: newborn effects.

OBJECTIVE: Our purpose was to study the neonatal effects of red blood cell alloimmunization in a rabbit model. STUDY DESIGN: Eighteen does were alloimmunized to incompatible red blood cells. Does were bred twice, once with a homozygous buck of incompatible blood type and once with a homozygous buck of compatible blood type. Fetal blood sampling was undertaken on day 27 of gestation (term 28 to 31 days). Does were delivered on day 30 and the neonatal pups were anesthetized. Direct cardiac samplings were performed for hemoglobin, reticulocyte count, and direct Coombs' test. Hepatic, splenic, and renal wet weights were measured. RESULTS: Twenty-two pregnancies (12 compatible and 10 incompatible) were studied. Neonatal hemoglobin was higher in the compatible litters (11.1 gm/dL [7.7 to 12.6 gm/dL] vs 4.9 gm/dL [2.1 to 9.1 gm/dL], P <.001), whereas no difference could be detected between the respective reticulocyte counts (34.0/100 red blood cells [27.3 to 36.1/100 red blood cells] vs 32.6/100 red blood cells [26.8 to 43.5/100 red blood cells], P =.55). The direct Coombs' assay was negative in 23 pups from 8 compatible litters and false positive (weakly positive result) in 2 pups of a ninth compatible litter. The Coombs' assay was positive in all 22 incompatible pups tested. Hepatosplenomegaly was noted in affected pups but not in controls. CONCLUSIONS: A disease analogous to human hemolytic disease of the newborn can be induced in the rabbit neonate.

Animals

Long-term neurodevelopmental outcome after intrauterine transfusion for the treatment of fetal hemolytic disease.

OBJECTIVE: The aim of the study was to assess the developmental outcome of neonatal survivors of hemolytic disease of the neonate treated with modern intrauterine transfusion techniques. STUDY DESIGN: In this prospective, observational study, auditory evoked-response tests were performed in the nursery. Neurodevelopmental evaluation with the Gesell Developmental Schedules was performed between 9 and 18 months of corrected age to assess motor skills, language development, comprehension capacity, and social skills. The McCarthy Scales of Children's Abilities were administered between 36 and 62 months. RESULTS: Forty children who survived severe fetal hemolytic disease were followed up until 62 months old. Demographic data included gestational age at first intrauterine transfusion (26.4 +/- 3.7 weeks), median number of intrauterine transfusions (4, range 1-8), lowest fetal hematocrit (20.2% +/- 7.8%), peak fetal bilirubin (7.1 +/- 2.1 mg/dL), incidence of hydrops fetalis (45%), and mean gestational age at delivery (35.6 +/- 2.2 weeks). One case of severe bilateral deafness and 1 case of right spastic hemiplegia were diagnosed. The Gesell Developmental Schedules score was assessed between 9 and 18 months of corrected age in 22 infants. The global developmental quotient was 101.9 +/- 9.5 (mean for normal population is 100). Regression analysis revealed no correlation between the global developmental quotient and gestational age at the first intrauterine transfusion, gestational age at birth, or the severity of the fetal hemolytic disease (fetal hematocrit, fetal bilirubin, presence of hydrops fetalis, total number of intrauterine transfusions, duration of neonatal phototherapy, and number of neonatal exchange transfusions). Eleven of the 40 children were followed up until they were 62 months old, and the McCarthy Scales of Children's Abilities were administered. The mean cognitive index was 107.6 +/- 9.4 (90-109 is considered average). CONCLUSION: Despite severe fetal hemolytic disease, normal developmental outcome can be expected for children treated with intrauterine transfusions.

Bilirubin

Heterotopic abdominal pregnancy treated at laparoscopy.

OBJECTIVE: To report a case of laparoscopic treatment of a heterotopic primary abdominal pregnancy after IVF with preservation of the concurrent intrauterine pregnancy. DESIGN: Case report. SETTING: University-based IVF program. PATIENT(S): A woman with a heterotopic abdominal pregnancy after IVF-ET. INTERVENTION(S): Pituitary down-regulation with luteal leuprolide acetate, ovulation induction with menotropins, IVF-ET, progesterone in oil for luteal support, laparoscopy, and resection of the abdominal gestation. MAIN OUTCOME MEASURE(S): Human chorionic gonadotropin levels, pelvic ultrasound examinations, and laparoscopic and pathologic findings. RESULT(S): A heterotopic abdominal pregnancy occurred after IVF-ET and was treated successfully with laparoscopy. The concurrent intrauterine pregnancy was delivered at term. CONCLUSION(S): Early diagnosis of an ectopic abdominal pregnancy allowed successful laparoscopic treatment, without sequelae to the intrauterine gestation.

Adult

Ultrasonographic measurement of crown-rump length in high-order multifetal pregnancies.

The objective of the study was to evaluate the crown-rump length (CRL) in high-order multifetal pregnancies (three or more fetuses). The records of patients who underwent multifetal pregnancy reduction were reviewed. The following parameters were defined: the mean CRL (CRLMEAN) and the difference between the largest and smallest CRL (CRLRANGE) for each pregnancy. CRLMEAN was plotted versus gestational age (GA) and the line of best fit was derived. The residual for each CRL (CRLRES) was calculated by subtracting the value predicted by the regression line from the individual CRL (CRLIND). Regression lines for single-tons with confirmed GA from four previously reported studies were used for comparison. A total of 82 patients were included (29 triplets, 38 quadruplets and 15 quintuplets; mean GA 10.7 +/- 0.78 weeks). CRLMEAN correlated with GA (CRLMEAN = 38.88 - 8.78(GA) + 0.82(GA)2; R = 0.83; R2 = 0.70). This second-degree polynomial remained within the range for singletons. No significant differences in maternal age, GA and CRLMEAN were noted between the patients with different numbers of fetuses. The median CRLRANGE was largest in quintuplets, followed by quadruplets and triplets. The CRLRANGE correlated poorly with GA. The mean CRL in multifetal pregnancies increases with GA similarly to that in singletons. The variability of individual measurements increases with the number of fetuses and CRLs are lower in quintuplets.

Adult

Practice parameter for the use of red blood cell transfusions: developed by the Red Blood Cell Administration Practice Guideline Development Task Force of the College of American Pathologists.

A practice parameter has been developed to assist physicians in the therapeutic use of red blood cell transfusions. The developers of this parameter used the best available information from the medical literature, as well as clinical experience and the extensive reality testing required by the College of American Pathologists for approval. In acute anemia, a fall in hemoglobin values below 6 g/dL or a rapid blood volume loss of more than 30% to 40% requires red blood cell transfusions in most patients. However, tissue oxygenation provides a better indication of physiologic need in situations where invasive monitoring provides this information. When these data are not available, heart rate and blood pressure measurements and the nature of bleeding (active, controlled, uncontrolled) supplement the hemoglobin value in guiding the transfusion decision. In sickle cell disease and thalassemias, red blood cells are transfused to prevent acute or chronic complications. Red blood cell transfusions are used in chronic anemias unresponsive to pharmacologic agents based on the patient's symptoms. Guidelines must be altered for neonates who require an increase in hematocrit to above 0.30 to 0.35 when respiratory distress is present. Indications for red blood cell transfusion for the pregnant or postpartum patient are similar to those for the nonpregnant patient. Risks of transfusion, particularly transmissible disease and incompatibility, remain but have been reduced. Thus, red blood cell transfusion continues to be a powerful therapeutic tool when used judiciously and carries less risk than in the recent past.

Adult

The effect of intrauterine transfusion on fetal bilirubin in red cell alloimmunization.

OBJECTIVE: To evaluate the change in fetal serum bilirubin levels in response to intrauterine transfusion for red cell alloimmunization. METHODS: The records of 37 patients who underwent more than one intrauterine transfusion were reviewed. The following indices were extracted: pre- and post-transfusion fetal hematocrit, total and direct serum bilirubin, reticulocyte count, Kleihauer-Betke test results, volumes of intravascular and intraperitoneal transfusions, and the source used for transfusion. The data were compared for interval 1 (transfusion 1 to 2) and interval 2 (transfusion 2 to 3). The rates of change in bilirubin, reticulocyte count, and percent fetal cells on the Kleihauer-Betke test were defined as the differences between the initial values of one transfusion and the initial values of the next transfusion divided by the number of days between transfusions. Analysis of variance, sign-rank test, and linear regression analysis were used when appropriate. P < .05 was significant. RESULTS: The median number of intrauterine transfusions for each patient was 3 (range 2-8). Gestational ages ranged from 22 to 37 weeks. Total bilirubin remained above the 97.5 percentile for gestational age in all but five patients. There was a significant decrease in reticulocyte count and fetal cells on the Kleihauer-Betke test, and an increase in hematocrit with serial intrauterine transfusions. Bilirubin increased significantly after the first intrauterine transfusion (3.9 versus 5.0 mg/dL) and remained elevated thereafter. CONCLUSION: Fetal total serum bilirubin remains elevated with repeated intrauterine transfusions in fetal alloimmunization. Total bilirubin should not be used to evaluate fetal hematologic responses to the transfusions.

Adult

Damage control for the obstetric patient.

The management of trauma and hemorrhagic shock in the pregnant patient involves unique considerations owing to extensive alterations in physiology. In the third trimester of pregnancy, emergent delivery by cesarean section should be started within 4 minutes after the initiation of CPR for both maternal and fetal benefits. Stabilization of the maternal condition should take precedence over the fetal status in cases of penetrating or blunt trauma. Postpartum hemorrhage is managed by a succession of pharmacologic and surgical maneuvers prior to resorting to hysterectomy, particularly in a woman of low parity. Hepatic rupture and abdominal gestation are unique conditions to pregnancy that require damage control through a close partnership between the obstetrician and the surgeon.

Female

Stable solid-phase Rh antigen.

Numerous investigators have attempted to isolate the Rh antigens in a stable, immunologically reactive form since the discovery of the Rh system over 56 years ago. We report here a successful and reproducible approach to solubilizing and adsorbing the human Rh antigen(s) to a solid-phase matrix in an antigenically active form. Similar results were obtained with rabbit A/D/F red blood cell antigens. The antigen preparation was made by dissolution of the red blood cell membrane lipid followed by fragmentation of the residual cytoskeleton in an EDTA solution at low ionic strength. The antigenic activity of the soluble preparations was labile in standard buffers but was stable in zwitterionic buffers for extended periods of time. Further studies showed that the antigenic activity of these preparations was enhanced, as was their affinity for plastic surfaces, in the presence of acidic zwitterionic buffers. Adherence to plastic surfaces at low pH maintained antigenic reactivity and specificity for antibody was retained. The data show that this approach yields a stable form of antigenically active human Rh D antigen that could be used in a red blood cell-free assay for quantitative analysis of Rh D antibody and for Rh D antibody immunoadsorption and purification.

Animals

Polyhydramnios.

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Amniocentesis

Oxidative metabolism in insulin-treated gestational diabetes mellitus.

To investigate whether protein, carbohydrate, and fat metabolism was normalized in insulin-treated gestational diabetes mellitus (GDM), eight Hispanic women with GDM and eight healthy controls were studied at 32-36 wk of gestation and 6 wk postpartum. Net substrate utilization was measured using room respiration calorimetry. Exogenous substrate oxidation was determined by 13C recovered in breath CO2 from 13C-labeled leucine, glucose, and Hiolein. Women with GDM had higher 24-h oxygen consumption, carbon dioxide production, total energy expenditure, and basal metabolic rates than controls due to larger body mass. Adjusted for weight or fat-free mass, total energy expenditure, basal metabolic rate, and basal and 24-h whole body net protein, carbohydrate, and fat utilization did not differ between insulin-treated GDM subjects and controls in pregnancy or postpartum. Oxidation of [13C]leucine and [13C]glucose did not differ by group or pregnancy status. Recovery of exogenously administered [13C]Hiolein, a biosynthetic triglyceride, as breath 13CO2 was significantly lower in the GDM group antepartum and postpartum (P = 0.02), indicating lower oxidation of exogenous triglycerides in GDM.

Adipose Tissue