Biomedical subjects

Louise Wilkins-Haug

Publications and source records attributed to Louise Wilkins-Haug.

14 recordsLinked to original sources

PubMed2006

Estimates of prenatal abstinence from alcohol: a matter of perspective.

Abstinence from alcohol has been recommended for both pregnant and pre-conceptional women. The purpose of this study is to compare self and partner reports of abstinence from alcohol in a sample of 253 pregnant women who were T-ACE (Tolerance, Annoy, Cut-down, Eye-opener) alcohol screen positive. Dyads' reports of the women's abstinence from alcohol before, during, and after pregnancy were compared. Based on their own self-report, less than 20% of the pregnant women were abstinent in their first trimester and about half were abstinent for the rest of their pregnancy. Partners significantly over-estimated the women's abstinence from alcohol at all points except in the post-partum period when the dyad had the highest rate of agreement (85.4%). Reasons for the discrepancies in the self and partner reports of prenatal abstinence, and how partners might influence such behavior remain speculative, but identify areas for future research and prevention.

Adult↗

PubMed2006

Stages of change and prenatal alcohol use.

This study evaluated stage of change as a predictor of alcohol use in a sample of 301 pregnant women who were either in the precontemplation (62%) or in the action (38%) stage of change in their first trimester. Stage of change distinguished between different patterns of alcohol consumption before and after pregnancy. Those in the precontemplation stage drank more per episode and more often before pregnancy than those in the action stage. The precontemplation group also had a significantly greater quantity of alcohol after pregnancy. However, stage of change did not directly predict subsequent prenatal alcohol use. Previous alcohol use, age, and education were the most significant predictors of prenatal drinks per drinking day. Temptation to drink alcohol was the best predictor of prenatal drinking frequency after study enrollment. Women in both stages of change reduced the quantity and the frequency of their alcohol consumption while pregnant and achieved comparable rates of abstinence.

Adult↗

PubMed2006

Brief intervention for prenatal alcohol use: the role of drinking goal selection.

The behavioral problems and cognitive deficits resulting from even small amounts of prenatal alcohol exposure can be significant and enduring but completely preventable. The purpose of this study was to examine the impact of a prenatal drinking goal selected during a brief intervention for 115 pregnant women and their partners on subsequent consumption. Higher proportions of women having their first pregnancy chose abstinence as a goal over drinking reduction. Goal selection was highly predictive of subsequent drinking behavior. Interestingly, the participants who were abstinent at enrollment and who chose to remain abstinent had the highest rates of abstinence. In contrast, the women who chose cutting down on drinking were the least likely to drink less subsequently, despite recognizing more situations putting them at risk for drinking and identifying more alternatives to consumption. We conclude that goal choice in behavioral self-management of alcohol use by pregnant women is critical.

Adult↗

PubMed2006

Confined placental mosaicism as a risk factor among newborns with fetal growth restriction.

OBJECTIVE: To delineate the frequency and clinical presentation of confined placental mosaicism (CPM) among newborns with idiopathic intrauterine growth restriction (IUGR) as compared to infants with appropriate fetal growth. METHODS: 70 newborns with IUGR (birth weight < 10%) were matched by maternal age (+/-5 years) and gestational age (+/-7 days) to an equal number of infants of normal size. From both populations, placental samples underwent karyotype analysis following standard culture. RESULTS: CPM occurred significantly more often in the placentas from IUGR infants compared to controls, 11/70 (15.7%) and 1/70 (1.4%) respectively (p = 0.008). High-level tetraploidy (>20% in a primary culture) predominated among the IUGR placentas, while autosomal aneuploidy occurred only once in each population. Placental histology revealed significantly greater decidual vasculopathy, infarction, and intervillous thrombus formation in the karyotypically abnormal placentas (p = 0.03). Maternal age, gestational age at delivery, degree of growth restriction and ponderal index did not vary with the presence of CPM. CONCLUSION: CPM, and principally high-level tetraploidy, is found significantly more often among the placentas of newborns with IUGR. Infants with IUGR and CPM are clinically diverse although the placentas display pathologic changes suggestive of chronic impairment of uteroplacental function.

Adult↗

PubMed2006

Identifying risk drinking in expectant fathers.

BACKGROUND: Identification of risk drinking in expectant fathers may be helpful as an important part of efforts to minimize maternal alcohol use, and as an opportunity to inform them about a problematic practice during a critical developmental stage for the couple. The purpose of this study was to evaluate the T-ACE screening questionnaire, which asks about tolerance to alcohol, being annoyed by other's comments about drinking, attempts to cut down, and having a drink first thing in the morning ("eye-opener"), in the male partners of pregnant women who themselves were T-ACE positive. METHODS: Two hundred fifty-four male partners were asked to complete the T-ACE embedded in a health survey, the Alcohol Use Disorders Identification Test (AUDIT), and other questions about their alcohol use in the past 30 days when their pregnant partners had a median gestation of 11.5 weeks (T1). After delivery, male partners again completed the T-ACE and quantity-frequency questions (T2). The predictive ability of the T-ACE and AUDIT was compared, using risk drinking (>4 drinks/day or >14 drinks/week) as the criterion standard. RESULTS: A substantial minority of male partners had risk drinking, 31 percent at T1 and 25 percent at T2. Although the AUDIT was better than the T-ACE as an independent predictor of risk drinking, the latter was most accurate when the tolerance threshold exceeded 2 drinks, the same established for pregnant women. The sensitivity (T1= 84.6%, T2= 82.8%) and specificity (T1= 43.8%, T2= 51.1%) of the T-ACE at this threshold compared favorably with those of the AUDIT at the standard cut point of 8. CONCLUSIONS: The T-ACE may be a practical way for clinicians to identify risk drinking in both pregnant women and expectant fathers.

Adolescent↗

PubMed2006

Alcohol use by pregnant women: partners, knowledge, and other predictors.

OBJECTIVE: The impact of a couple's knowledge about healthy pregnancy habits involving alcohol and substance use was assessed in the context of other factors previously identified to predict prenatal alcohol consumption in a sample of 254 pregnant women and their male partners. METHOD: Couples were asked to assess independently a series of statements (true or false) describing the consequences of prenatal substance exposure, while also providing information about their own drinking. RESULTS: Although the couples demonstrated good knowledge of healthy habits during pregnancy, they did not agree when the element of chance was considered. Median household income was more highly predictive of a pregnant woman's knowledge score than her partner's score. In turn, the subject's knowledge of healthy pregnancy habits as manifested in the assessment score had only a weak relationship with prenatal alcohol consumption. Previous alcohol use by the pregnant woman was the strongest predictor of prenatal alcohol use. CONCLUSIONS: Because previous alcohol consumption use by the pregnant woman was the strongest predictor of prenatal alcohol use, the importance of its accurate identification is emphasized. Although pending further investigation, knowledge about healthy pregnancy behaviors may exert greater impact if it is shared by a pregnant woman and her partner.

Adult↗

PubMed2005

Fetal surgery in otolaryngology: a new era in the diagnosis and management of fetal airway obstruction because of advances in prenatal imaging.

OBJECTIVE: To evaluate the efficacy, safety, and outcome of prenatal imaging and fetal surgery in the diagnosis and management of fetal airway obstruction caused by cervical teratoma or lymphatic malformation. SETTING: Tertiary care medical center. Patients A retrospective study of all consecutive fetal patients with cervical teratoma or lymphatic malformation between January 2001 and December 2003. RESULTS: The indication was potential airway obstruction due to a fetal neck mass in 8 patients. Prenatal images were obtained by ultrasonography and magnetic resonance imaging, and were consistent with teratoma in 4 patients. The mean cervical mass was 8.3 x 7.3 x 6.7 cm, with airway obstruction suspected in all 4 patients. All 4 patients were successfully delivered by ex utero intrapartum treatment, during which 3 newborns required tracheotomy and 1 was successfully intubated. Prenatal images were consistent with lymphatic malformation in the remaining 4 patients. The mean cervical mass was 4.6 x 4.4 x 3.4 cm. There was no indication of airway obstruction based on prenatal images. All 4 patients had an uncomplicated vaginal delivery. CONCLUSIONS: Technological advances in prenatal ultrasonography and magnetic resonance imaging have improved the ability to diagnose congenital abnormalities in utero. This allows for proper assessment of the airway to prevent any unexpected problems at delivery. We believe that many airway emergencies can be avoided by prenatal imaging and initiation of airway management in the prenatal period.

Adult↗

PubMed2005

Risk during pregnancy--self-report versus medical record.

OBJECTIVE: This study was undertaken to compare the frequencies with which physicians and patients report medical and behavioral risk factors during pregnancy, with particular attention to identification of women at risk for prenatal alcohol use. STUDY DESIGN: The sample included 278 women, drawn from a randomized trial of T-ACE (alcohol screening questionnaire) positive pregnant women receiving obstetric care. Medical records and participants' self-reports were available for comparison. RESULTS: Physicians identified only 10.8% of women recognized as at risk for alcohol consumption by the T-ACE screening measure. In contrast, the physicians' records were more inclusive for medical risk factors than the participant's self-reports. Physicians were significantly more likely to correctly identify nonwhite participants as being at risk for prenatal alcohol use (odds ratio = 3.59, P = .026), compared with their white counterparts. CONCLUSION: Self-report on the T-ACE questionnaire is more effective than medical records in identifying women at risk for prenatal alcohol use.

Adult↗

PubMed2005

Brief intervention for prenatal alcohol use: a randomized trial.

OBJECTIVE: To test the effectiveness of a brief intervention in the reduction of prenatal alcohol consumption by women when a partner is included. METHODS: Randomized trial of a single session brief intervention given by the study nurse or principal investigator for 304 pregnant women and their partners. The women had positive T-ACE (Tolerance, Annoyed, Cut down, Eye-opener, an alcohol screening test) results and were at risk for alcohol consumption while pregnant. All completed initial diagnostic and postpartum interviews. RESULTS: Fewer than 20% of participants (median 11.5 weeks of gestation) were abstinent at study enrollment, averaging more than 1.5 drinks per episode. Nearly 30% had 2 or more drinks at a time while pregnant. Prenatal alcohol use declined in both the treatment and control groups after study enrollment, based on a 95% follow-up rate. Factors associated with increased prenatal alcohol use after randomization included more years of education, extent of previous alcohol consumption, and temptation to drink in social situations. Brief interventions for prenatal alcohol reduced subsequent consumption most significantly for the women with the highest consumption initially (regression coefficient, b = -0.163, standard error (b) = 0.063, P < .01). Moreover, the effects of the brief intervention were significantly enhanced when a partner participated (b = -0.932, standard error (b) = 0.468), P < .05). CONCLUSION: Pregnant women with the highest levels of alcohol use reduced their drinking most after a brief intervention that included their partners. Recommendations include consistent screening for prenatal alcohol use followed by diagnostic assessment when indicated, and if confirmed by other studies, a patient-partner brief intervention for the heaviest drinkers.

Adult↗

PubMed2004

Balloon dilation of severe aortic stenosis in the fetus: potential for prevention of hypoplastic left heart syndrome: candidate selection, technique, and results of successful intervention.

BACKGROUND: Preventing the progression of fetal aortic stenosis (AS) to hypoplastic left heart syndrome (HLHS) requires identification of fetuses with salvageable left hearts who would progress to HLHS if left untreated, a successful in utero valvotomy, and demonstration that a successful valvotomy promotes left heart growth in utero. Fetuses meeting the first criterion are undefined, and previous reports of fetal AS dilation have not evaluated the impact of intervention on in utero growth of left heart structures. METHODS AND RESULTS: We offered fetal AS dilation to 24 mothers whose fetuses had AS. At least 3 echocardiographers assigned a high probability that all 24 fetuses would progress to HLHS if left untreated. Twenty (21 to 29 weeks' gestation) underwent attempted AS dilation, with technical success in 14. Ideal fetal positioning for cannula puncture site and course of the needle (with or without laparotomy) proved to be necessary for procedural success. Serial fetal echocardiograms after intervention demonstrated growth arrest of the left heart structures in unsuccessful cases and in those who declined the procedure, while ongoing left heart growth was seen in successful cases. Resumed left heart growth led to a 2-ventricle circulation at birth in 3 babies. CONCLUSIONS: Fetal echocardiography can identify midgestation fetuses with AS who are at high risk for developing HLHS. Timely and successful aortic valve dilation requires ideal fetal and cannula positioning, prevents left heart growth arrest, and may result in normal ventricular anatomy and function at birth.

Aortic Valve Stenosis↗

PubMed2004

Creation of an atrial septal defect in utero for fetuses with hypoplastic left heart syndrome and intact or highly restrictive atrial septum.

BACKGROUND: Infants born with hypoplastic left heart syndrome and an intact or highly restrictive atrial septum face a neonatal mortality of at least 48% despite early postnatal left atrial decompression and palliative surgery. Prenatal left atrial decompression has been suggested as a means of improving these outcomes. This study reports the feasibility of fetal catheterization to create an interatrial communication and describes technical considerations. METHODS AND RESULTS: Seven fetuses at 26 to 34 weeks' gestation with hypoplastic left heart syndrome and intact or highly restrictive atrial septum underwent attempted prenatal intervention. Under ultrasound guidance, the atrial septum was approached with a needle introduced percutaneously from the maternal abdominal surface. In 6 of 7 fetuses, the atrial septum was successfully perforated, with balloon dilation of this iatrogenic defect resulting in a small but persistent interatrial communication. There were no maternal complications. One fetus died after the procedure. The remaining fetuses were liveborn at term, although 4 died as neonates. CONCLUSIONS: Ultrasound-guided fetal atrial septoplasty consisting of septal puncture and balloon dilation is feasible and can be performed percutaneously to minimize maternal risk. Although we have not demonstrated any positive clinical impact to date, it is our hope that further technical evolution will ultimately enable prenatal left atrial decompression and improvement of outcomes in fetuses with hypoplastic left heart syndrome and intact atrial septum.

Cardiac Catheterization↗

PubMed2004

Expectant management in spontaneous preterm premature rupture of membranes between 14 and 24 weeks' gestation.

OBJECTIVE: To examine maternal and neonatal outcomes in expectant management of spontaneous preterm premature rupture of membranes (PPROM) before 24 weeks. STUDY DESIGN: Patients presenting with spontaneous PPROM from 14 to 23 completed weeks' gestation between January 1, 1995 and December 31, 1999 were reviewed. A total of 108 pregnancies were evaluated; 57 patients elected expectant management. RESULTS: Median latency from rupture of membranes (ROM) to delivery was 6 days; the overall survival rate was 26.3%. In ROM <20 weeks, a twin and a triplet pregnancy with loss of the presenting fetuses yielded the only survivors. In patients with ROM from 20 to 21 and 22 to 23 weeks, survival rates were 2/16 (12.5%) and 11/20 (55.0%), respectively. In all, 18/57 (31.6%) of patients developed chorioamnionitis. There was no maternal sepsis or death. There were three cases of pulmonary hypoplasia, all in patients with ROM <20 weeks. CONCLUSIONS: Neonatal survival in spontaneous PPROM before 20 weeks is rare, irrespective of latency from ROM to delivery. When PPROM occurs from 20 to 24 weeks, survival improves with increasing gestational age at ROM and at delivery.

Adolescent↗

PubMed2003

Fetuses subsequently born premature are smaller than gestational age-matched fetuses not born premature.

OBJECTIVE: To determine whether singleton fetuses in pregnancies that subsequently deliver prematurely are smaller than singleton fetuses of the same gestational age who are not born premature. METHODS: Our study population consisted of singleton pregnancies meeting the following criteria: at least 1 first-trimester sonogram (to ensure accurate dating), at least 1 sonogram after 24 weeks' gestation, and a known delivery date. Controlling for gestational age at sonography using analysis of covariance, we compared very premature fetuses (delivery at 24-29.9 weeks; n = 26) and moderately premature fetuses (delivery at 30-36.9 weeks; n = 306) with nonpremature fetuses (n = 1,838) with respect to the following sonographic parameters: abdominal diameter, femur length, biparietal diameter, and estimated fetal weight. RESULTS: On 24- to 29.9-week sonograms, fetuses who were subsequently born very premature had significantly smaller fetal measurements than did fetuses who were not born premature (P < .05 for all parameters). Even after excluding 9 very premature fetuses with a risk factor for uteroplacental insufficiency (e.g., toxemia or hypertension), the remaining 17 fetuses had significantly smaller abdominal diameters, femur lengths, and estimated fetal weights than nonpremature fetuses (P < .05). Sonographic parameters in moderately premature fetuses were smaller than in nonpremature fetuses on 30- to 36.9-week sonograms (P < .05 for all parameters), but the only parameters that differed significantly between these 2 groups on 24- to 29.9-week sonograms were abdominal diameter and femur length. CONCLUSIONS. Singleton fetuses subsequently born premature are smaller than gestational age-matched fetuses not born premature, even in the absence of an identifiable cause of growth restriction. The lag in growth appears to occur in the last few weeks before delivery.

Birth Weight↗

PubMedDate not supplied

Social support and prenatal alcohol use.

BACKGROUND: Lack of social support during pregnancy may be associated with the prenatal use of alcohol. The purpose of this study is to evaluate the degree, predictors, and consequences of social support in a cohort of 200 pregnant women who scored 2 or more on the T-ACE, a 4-item screening questionnaire for prenatal drinking. METHODS: The pregnant women completed the Maternal Social Support Index (MSSI). Their partners completed the same measure, which was modified to reflect their status as the biological fathers. RESULTS: Despite having similar overall MSSI scores, there was only slight to fair agreement on the level of support received by the pregnant women for most daily tasks when their responses were compared with their partners. Predictors of increased maternal social support included the woman's being married and having more education and a more prestigious job than her partner. Social support was not predictive of either subsequent prenatal alcohol use or newborn birth weight. CONCLUSIONS: Regardless of social support, previous, prepregnancy, and early pregnancy drinking were the most predictive factors for subsequent prenatal alcohol consumption in this sample, underscoring the importance of screening pregnant women for drinking.

Adult↗