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1 Varner, Michael W.; Clark, Edward B.; Fernando, Kumari L.; Mathews, V. JohnRobust estimation of fetal heart rate variability using Doppler ultrasound.This paper presents a new measure of heart rate variability (HRV) that can be estimated using Doppler ultrasound techniques and is robust to variations in the angle of incidence of the ultrasound beam and the measurement noise. This measure employs the multiple signal characterization (MUSIC) algori...Prenatal Ultrasonography; Fetal Heart Rate; Blood Flow Velocity; Algorithms2003-08
2 Buchi, Karen F.; Varner, Michael W.Prevalence of substance abuse among pregnant women in Utah.OBJECTIVE: To determine the rate of substance use among Utah's pregnant women, who are primarily white and middle class, for comparison to rates reported in studies of inner-city populations. METHODS: Urine specimens and demographic data were obtained anonymously from women who delivered infants at ...Substance Abuse; Pregnancy; Utah/epidemiology1993-02
3 Digre, Kathleen B.Selective MR imaging approach for evaluation of patients with Horner's syndrome.PURPOSE: To assess the usefulness of MR in the evaluation of patients with Horner's syndrome. PATIENTS AND METHODS: We prospectively performed MR imaging in 33 patients with Horner's syndrome (13 preganglionic and 20 postganglionic) using a protocol specifically designed for pre- and postganglionic ...Horner Syndrome; Magnetic Resonance Imaging; Epidemiology1992-01
4 Buchi, Karen F.; Varner, Michael W.Changing prevalence of prenatal substance abuse in Utah.OBJECTIVE: To estimate the current prevalence of prenatal exposure to methamphetamines and other drugs of abuse among infants born in Utah and compare the results with those of a maternal substance abuse prevalence study performed in 1991 in the same geographic area. METHODS: Thirteen well baby nurs...Street Drugs; Prenatal Care; Maternal Exposure; Infant, Newborn2003-06-12
5 Varner, Michael W.Maternal mortality in Utah.OBJECTIVE: To determine trends in maternal deaths in Utah, identify opportunities for preventive intervention, and analyze the mechanism of reporting maternal deaths. METHODS: A retrospective review was performed of maternal death certificates and medical records in Utah from January 1, 1982, throug...Maternal Death; Utah; Pregnancy; Trauma; Pulmonary Emboliam; Maternal Cardiac Disease1998-02
6 Digre, Kathleen B.Significance of CT and MR findings in sphenoid sinus disease.Disorders of the paranasal sinuses, particularly the sphenoid sinus, can be associated with significant disorders of the optic and other cranial nerves. We examined 100 consecutive routine CT scans, 100 posterior fossa CT scans, and 100 MR scans to look for evidence of sinus disease, especially of t...Sphenoid Sinus; Vision Disorders; Paranasal Sinus Diseases; Magnetic Resonance Imaging1989-05
7 Varner, Michael W.Intergenerational predisposition to operative delivery.OBJECTIVE: To determine the risk of cesarean delivery for women who themselves were born via operative delivery. METHODS: A linked data base was constructed between the birth certificates of individuals born in Utah during 1947-1957 (parental cohort) and who subsequently became a parent of offspring...Cesarean Section; Cohort Studies; Delivery, Obstetric; Obstetric Labor Complications1996-06
8 Varner, Michael W.Cerebral vasculopathies masquerading as eclampsia.Obstetricians know that preeclampsia-eclampsia is a syndrome and is a final common pathway for multiple causes. It is also possible that other conditions, not always directly related to pregnancy, can mimic preeclampsia-eclampsia. One such entity is cerebral vasculopathy, an entity characterized b...Cerebrovascular Disorders; Eclampsia; Puerperal Disorders2006-02
9 Varner, Michael W.Randomized study of closure of the peritoneum at cesarean delivery.This study was conducted to test the hypothesis that nonclosure of the visceral and parietal peritoneum during low transverse cervical cesarean delivery is not associated with increased intraoperative or immediate postoperative complications. One hundred thirteen patients scheduled for low transvers...Cesarean Section; Postoperative Complications; Visceral and Parietal Peritoneum closure1991-06
10 Varner, Michael W.; Jackson, G. MarcSevere pulmonary hypertension in pregnancy following successful repair of ventricular septal defect in childhood.BACKGROUND: Because of advances in surgical repair, an increasing number of women born with structural cardiac disease now live to reproductive age. Patients treated successfully in childhood are followed for varying periods of time, then may be lost to follow-up or told that no follow-up is necessa...Pregnancy Complications, Cardiovascular; Heart Septal Defects, Ventricular; Hypertension, Pulmonary1993-10
11 Digre, Kathleen B.; Kleinschmidt, Julia J.; Hanover, RitaIdiopathic intracranial hypertension. Relationship to depression, anxiety, and quality of lifeOBJECTIVE: To explore the incidence of depression and anxiety and to measure quality of life in women with idiopathic intracranial hypertension (IIH), a matched group cross-sectional study was conducted. Women with IIH (n = 28) were compared with control groups of weight- and age-matched women not d...Intracranial Hypertension; Depression; Anxiety; Quality of Life2000-01-25
12 Varner, Michael W.; Esplin, Michael S.Progression of pulmonary arteriovenous malformation during pregnancy: case report and review of the literature.Arteriovenous Malformations; Pulmonary Artery; Pregnancy Complications; Pulmonary Veins; Pulmonary Artery1997-04
13 Varner, Michael W.; Porter T. FlintRisk of preterm birth across generations.OBJECTIVE: To examine the risk of preterm birth for mothers who themselves were born before term. METHODS: Data were taken from a linked data base of birth certificates composed of two cohorts: 1) a parental cohort of women born between 1947 and 1957 and 2) their offspring born between 1970 and 1992...Preterm mothers; Pregnancy; Premature; Risk1997-07
14 Varner, Michael W.; Cannon, Cynthia; Ward, RobertPopulation-based study of congenital diaphragmatic hernia in Utah: 1988-1994.OBJECTIVE: To define the natural history of congenital diaphragmatic hernia and to determine the potential impact of fetal therapy. METHODS: This retrospective case series consisted of all fetuses and neonates with congenital diaphragmatic hernia born between 1988 and 1994 in the state of Utah that ...Hernia, Diaphragmatic; Fetal Diseases; Prenatal Diagnosis; Utah/epidemiology1996-06
15 Digre, Kathleen B.Not so benign intracranial hypertension.Despite many controversies, intracranial hypertension due to use of doxycycline does occur. Practitioners prescribing the tetracyclic antibiotics should be aware of the syndrome of increased intracranial pressure, and pay particular attention to the ocular fundus for papilloedema. Appropriate referr...Venous Occusion; Venous Hypertension; Tetracycline, Doxycycline; Minocycline2003-03-22
16 Varner, Michael W.; Hatasaka, Harry H.Recurrent pregnancy loss.Recurrent pregnancy loss is a frustrating clinical dilemma for both patients and physicians because, in most cases, causes are nebulous and few treatments with proven benefit can be offered. Involved, expensive tests have frequently been proposed and their use has often filtered into clinical practi...Recurrent Pregnancy Loss; Uterus/abnormalities; Chromosome Disorders; Abortion, Habitual1994-06
17 Varner, Michael W.Diagnosis of maternal cystic fibrosis during pregnancy.The third and fourth cases of maternal cystic fibrosis diagnosed during pregnancy are presented. Quantitative pilocarpine iontophoresis (sweat chlorides) must be performed to establish the diagnosis. Other important findings include recurrent or persistent respiratory symptoms, chest x-ray abnormali...Pregnancy; Cystic Fibrosis; Chlorides; Respiratory Insufficiency1983-03
18 Varner, Michael W.Elevations of amniotic fluid macrophage inflammatory protein-1 alpha concentrations in women during term and preterm labor.OBJECTIVE: To determine whether elevated concentrations of macrophage inflammatory protein-1 alpha (MIP-1 alpha) in amniotic fluid (AF) are related to term and preterm labor. METHODS: Amniotic fluid was obtained from women from five different clinical situations: 1) term cesarean delivery, no labor ...Amniotic Fluid; Macrophage Inflammatory Protein-1; Obstetric Labor, Premature1996-01
19 Frederick, Jeanne M.; Thulin, Craig; Bernstein, Paul S.Identification and characterization of a Pi isoform of glutathione S-transferase (GSTP1) as a zeaxanthin-binding protein in the macula of the human eyeUptake, metabolism, and stabilization of xanthophyll carotenoids in the retina are thought to be mediated by specific xanthophyll-binding proteins (XBPs). A membrane-associated XBP was purified from human macula using ion-exchange chromatography followed by gel-exclusion chromatography. Two-dimensio...Circular Dichroism; Isoelectric Focusing; Macula Lutea; Xanthophylls2004
20 Varner, Michael W.Elevated second-trimester maternal serum hCG: a marker of inadequate angiogenesis.OBJECTIVE: To measure angiogenin, a potent inducer of neovascularization and interleukin-6, as an indicator of acute inflammation, in second-trimester amniotic fluid of patients with elevated maternal serum hCG. METHODS: In this case-control study, 20 patients with elevated maternal serum hCG (at le...Angiogenesis Inducing Agents; Interleukin-6; Pregnancy Complications; hCG1998-04
21 Varner, Michael W.Trial of labor or repeat cesarean delivery in women with morbid obesity and previous cesarean delivery.OBJECTIVE: Assess effects of body mass index (BMI) on trial of labor after previous cesarean delivery and determine whether morbidly obese women have greater maternal and perinatal morbidity with trial of labor compared with elective repeat cesarean delivery. METHODS: Secondary analysis from a prosp...Pregnancy Outcome; Obesity; Repeat Cesarean Section; Body Mass Index2006-07
22 Varner, Michael W.Physiologic changes in pregnancy: surgical implications.Pregnancy has measurable effects on essentially every organ system in a woman's body. An understanding of these changes is vital for determining what is normal or abnormal in a pregnant woman. These changes frequently alter symptoms and signs of surgical diseases during pregnancy. In addition, ma...Pregnancy; Physiologic Changes; Surgical Implications1994-06
23 Varner, Michael W.Risk of uterine rupture with a trial of labor in women with multiple and single prior cesarean delivery.OBJECTIVE: To determine whether the risk for uterine rupture is increased in women attempting vaginal birth after multiple cesarean deliveries. METHODS: We conducted a prospective multicenter observational study of women with prior cesarean delivery undergoing trial of labor and elective repeat oper...Cesarean Section, Repeat; Uterine Rupture; Vaginal Birth after Cesarean; Obstetric Labor Complications/surgery2006-07
24 Varner, Michael W.Does progesterone treatment influence risk factors for recurrent preterm delivery?OBJECTIVE: To examine how demographic and pregnancy characteristics can affect the risk of recurrent preterm delivery and the how the effectiveness of progesterone treatment for prevention alters these relationships. METHODS: This was a secondary analysis of a randomized trial of 17alpha-hydroxyprog...Preterm Delivery; Progesterone Treatment; Pregnancy; Risk Factors2005-09
25 Varner, Michael W.Decision-to-incision times and maternal and infant outcomes.OBJECTIVE: To measure decision-to-incision intervals and related maternal and neonatal outcomes in a cohort of women undergoing emergency cesarean deliveries at multiple university-based hospitals comprising the National Institute of Child Health and Human Development Maternal-Fetal Medicine Units N...Cesarean Section; Fetal Distress; Outcome Assessment; Fetal Distress2006-07
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