G Acharya

Summary

Affiliation: University Hospital of North Norway
Country: Norway

Publications

  1. ncbi request reprint Reference ranges for serial measurements of umbilical artery Doppler indices in the second half of pregnancy
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Am J Obstet Gynecol 192:937-44. 2005
  2. ncbi request reprint Noninvasive cerclage for the management of cervical incompetence: a prospective study
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, 9038, Tromsø, Norway
    Arch Gynecol Obstet 273:283-7. 2006
  3. ncbi request reprint Reference ranges for umbilical vein blood flow in the second half of pregnancy based on longitudinal data
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Prenat Diagn 25:99-111. 2005
  4. ncbi request reprint Catheter-directed thrombolysis for the management of postpartum deep venous thrombosis
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Postbox 24, N 9038 Tromsø, Norway
    Acta Obstet Gynecol Scand 84:155-8. 2005
  5. ncbi request reprint Doppler-derived umbilical artery absolute velocities and their relationship to fetoplacental volume blood flow: a longitudinal study
    G Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Ultrasound Obstet Gynecol 25:444-53. 2005
  6. ncbi request reprint Reference ranges for serial measurements of blood velocity and pulsatility index at the intra-abdominal portion, and fetal and placental ends of the umbilical artery
    G Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Ultrasound Obstet Gynecol 26:162-9. 2005
  7. ncbi request reprint Major congenital heart disease in Northern Norway: shortcomings of pre- and postnatal diagnosis
    Ganesh Acharya
    Department of Obstetrics and Gynecology, Univeristy Hospital of Northern Norway, Tromsø, Norway
    Acta Obstet Gynecol Scand 83:1124-9. 2004
  8. ncbi request reprint A randomized controlled trial comparing surgical termination of pregnancy with and without continuous ultrasound guidance
    Ganesh Acharya
    Department of Obstetrics and Gynaecology, The Whittington Hospital, London, UK
    Eur J Obstet Gynecol Reprod Biol 114:69-74. 2004
  9. ncbi request reprint Role of routine ultrasonography in monitoring the outcome of medical abortion in a clinical setting
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Acta Obstet Gynecol Scand 83:390-4. 2004
  10. ncbi request reprint Relationships among Doppler-derived umbilical artery absolute velocities, cardiac function, and placental volume blood flow and resistance in fetal sheep
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, N 9038 Tromsø, Norway
    Am J Physiol Heart Circ Physiol 286:H1266-72. 2004

Detail Information

Publications39

  1. ncbi request reprint Reference ranges for serial measurements of umbilical artery Doppler indices in the second half of pregnancy
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Am J Obstet Gynecol 192:937-44. 2005
    ..The purpose of this study was to construct new reference ranges for serial measurements of commonly used umbilical artery Doppler indices (pulsatility index, resistance index, and systolic:diastolic ratio)...
  2. ncbi request reprint Noninvasive cerclage for the management of cervical incompetence: a prospective study
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, 9038, Tromsø, Norway
    Arch Gynecol Obstet 273:283-7. 2006
    ..The aim of this study was to evaluate the efficacy and safety of a noninvasive cerclage pessary in the management of cervical incompetence...
  3. ncbi request reprint Reference ranges for umbilical vein blood flow in the second half of pregnancy based on longitudinal data
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Prenat Diagn 25:99-111. 2005
    ..To construct new reference ranges for serial measurements of umbilical vein (UV) blood flow...
  4. ncbi request reprint Catheter-directed thrombolysis for the management of postpartum deep venous thrombosis
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Postbox 24, N 9038 Tromsø, Norway
    Acta Obstet Gynecol Scand 84:155-8. 2005
    ..The purpose of this pilot study was to evaluate the efficacy of catheter-directed thrombolysis in treating acute symptomatic postpartum DVT...
  5. ncbi request reprint Doppler-derived umbilical artery absolute velocities and their relationship to fetoplacental volume blood flow: a longitudinal study
    G Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Ultrasound Obstet Gynecol 25:444-53. 2005
    ....
  6. ncbi request reprint Reference ranges for serial measurements of blood velocity and pulsatility index at the intra-abdominal portion, and fetal and placental ends of the umbilical artery
    G Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Ultrasound Obstet Gynecol 26:162-9. 2005
    ..To construct reference ranges for serial measurements of umbilical artery (UA) blood flow velocity and pulsatility index (PI) at standardized insonation sites during the second half of pregnancy...
  7. ncbi request reprint Major congenital heart disease in Northern Norway: shortcomings of pre- and postnatal diagnosis
    Ganesh Acharya
    Department of Obstetrics and Gynecology, Univeristy Hospital of Northern Norway, Tromsø, Norway
    Acta Obstet Gynecol Scand 83:1124-9. 2004
    ..Earlier recognition of treatable abnormalities may improve the perinatal outcome. The purpose of this study was to evaluate the incidence, pre- and postnatal diagnosis and outcome of major CHD in two northern-most counties of Norway...
  8. ncbi request reprint A randomized controlled trial comparing surgical termination of pregnancy with and without continuous ultrasound guidance
    Ganesh Acharya
    Department of Obstetrics and Gynaecology, The Whittington Hospital, London, UK
    Eur J Obstet Gynecol Reprod Biol 114:69-74. 2004
    ..Therefore, the safety of this procedure is a global public health concern. It is not known whether routine use of intraoperative ultrasound guidance improves the outcome of first trimester STOP...
  9. ncbi request reprint Role of routine ultrasonography in monitoring the outcome of medical abortion in a clinical setting
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, Tromsø, Norway
    Acta Obstet Gynecol Scand 83:390-4. 2004
    ..The purpose of this study was to investigate whether routine transvaginal ultrasonography (TVS) at the follow-up visit after medical abortion can accurately identify women who will require surgical intervention...
  10. ncbi request reprint Relationships among Doppler-derived umbilical artery absolute velocities, cardiac function, and placental volume blood flow and resistance in fetal sheep
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, N 9038 Tromsø, Norway
    Am J Physiol Heart Circ Physiol 286:H1266-72. 2004
    ..In fetal sheep, Doppler-derived UA PI and absolute velocities, except PSV, are closely related to directly measured Q(UA) and R(UA), validating the use of noninvasive Doppler velocimetry in the assessment of placental circulation...
  11. ncbi request reprint Pregnancy outcome after loop electrosurgical excision procedure for the management of cervical intraepithelial neoplasia
    Ganesh Acharya
    Department of Obstetrics and Gynaecology, University Hospital of Northern Norway, 9038, Tromsø, Norway
    Arch Gynecol Obstet 272:109-12. 2005
    ..The purpose of this study was to evaluate whether LEEP affects the outcome of pregnancy after 20 weeks' gestation...
  12. ncbi request reprint Evaluation of the impact of current antismoking advice in the UK on women with planned pregnancies
    G Acharya
    Department of Obstetrics and Gynaecology, Whittington Hospital, London, UK
    J Obstet Gynaecol 22:498-500. 2002
    ..Health-care professionals should spend more time to inform women adequately about the dangers of smoking and help them to quit before pregnancy...
  13. ncbi request reprint Umbilical vein constriction at the umbilical ring: a longitudinal study
    G Acharya
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, N 9038 Tromsø, Norway
    Ultrasound Obstet Gynecol 28:150-5. 2006
    ..It has been suggested that constriction of the umbilical vein (UV) at the umbilical ring has hemodynamic effects. We aimed to determine the occurrence and extent of such constriction in serial observations...
  14. doi request reprint A longitudinal study of the relationship between maternal cardiac output measured by impedance cardiography and uterine artery blood flow in the second half of pregnancy
    K Flo
    Women s Health and Perinatology Research Group, Institute of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
    BJOG 117:837-44. 2010
    ..To study serial changes in maternal systemic and uterine artery haemodynamics and establish reference ranges for the second half of pregnancy...
  15. doi request reprint Blood flow to the scarred gravid uterus at 22-24 weeks of gestation
    K Flo
    Women s Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway Department of Obstetrics and Gynaecology, University Hospital of North Norway, Tromsø, Norway
    BJOG 121:210-5. 2014
    ....
  16. doi request reprint Agreement between umbilical vein volume blood flow measurements obtained at the intra-abdominal portion and free loop of the umbilical cord
    K Flo
    Department of Obstetrics and Gynecology, Institute of Clinical Medicine, University of Tromsø and University Hospital of Northern Norway, Tromsø, Norway
    Ultrasound Obstet Gynecol 34:171-6. 2009
    ..However, the reported values vary considerably depending on the technique and site of measurement. Our objective was to investigate the correlation and agreement between UV volume blood flows (Q(uv)) measured at the IA and FL...
  17. doi request reprint Differential placental gene expression in severe preeclampsia
    V Sitras
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway, University of Tromsø, Tromsø, Norway
    Placenta 30:424-33. 2009
    ..Placental gene expression is different between early- and late-onset preeclampsia, suggesting differences in pathophysiology...
  18. doi request reprint Longitudinal reference ranges for umbilical vein blood flow at a free loop of the umbilical cord
    K Flo
    Institute of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
    Ultrasound Obstet Gynecol 36:567-72. 2010
    ..To establish longitudinal reference ranges for the umbilical vein (UV) diameter, velocities and volume blood flow (Q(uv)) at a free loop of the umbilical cord and estimate the UV spatial velocity profile at this site...
  19. doi request reprint A new non-invasive method for measuring uterine vascular resistance and its relationship to uterine artery Doppler indices: a longitudinal study
    K Flo
    Faculty of Health Sciences, Women s Health and Perinatology Research Group, Department of Clinical Medicine, University of Tromsø, Tromsø, Norway
    Ultrasound Obstet Gynecol 37:538-42. 2011
    ..To describe a new method for measuring uterine vascular resistance (R(uta) ), establish longitudinal reference ranges and explore the relationship between uterine artery (UtA) Doppler indices and R(uta) ...
  20. doi request reprint Relation between utero-placental and feto-placental circulations: a longitudinal study
    Kari Flo
    Women s Health and Perinatology Research Group, Institute of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
    Acta Obstet Gynecol Scand 89:1270-5. 2010
    ....
  21. ncbi request reprint Experimental validation of uterine artery volume blood flow measurement by Doppler ultrasonography in pregnant sheep
    G Acharya
    Department of Obstetrics and Gynecology, Faculty of Medicine University of Tromsø and University Hospital of Northern Norway, Tromsø, Norway
    Ultrasound Obstet Gynecol 29:401-6. 2007
    ..To test the hypothesis that Doppler-derived (calculated) uterine artery volume blood flow (cQ(UtA)) reflects accurately volume blood flow measured directly (mQ(UtA)) in an experimental setting...
  22. doi request reprint Placental gene expression profile in intrauterine growth restriction due to placental insufficiency
    Vasilis Sitras
    Department of Obstetrics and Gynecology, University Hospital of Northern Norway and Institute of Clinical Medicine, University of Tromsø, Tromsø, Norway
    Reprod Sci 16:701-11. 2009
    ..In conclusion, IUGR due to placental insufficiency appears to alter placental glucocorticoid metabolism, upregulates inflammatory response in placenta, and shares common pathogenic mechanisms with severe early-onset preeclampsia...
  23. ncbi request reprint Management of women with epilepsy: Are guidelines being followed? Results from case-note reviews and a patient questionnaire
    Margitta T Kampman
    Department of Neurology, University Hospital of North Norway
    Epilepsia 46:1286-92. 2005
    ..We aimed to determine whether guidelines for the management of WWE are followed and whether active implementation of such guidelines makes a difference to clinical practice...
  24. pmc Differences in gene expression between first and third trimester human placenta: a microarray study
    Vasilis Sitras
    Department of Obstetrics and Gynecology, Akershus University Hospital, Lørenskog, Norway
    PLoS ONE 7:e33294. 2012
    ..Our objectives were to investigate the differences in global gene expression profile, the expression of imprinted genes and the effect of smoking in first and third trimester normal human placentas...
  25. doi request reprint Oxygen uptake of the human fetus at term
    Ganesh Acharya
    Faculty of Medicine, Institute of Clinical Medicine, University of Tromsø and University Hospital of Northern Norway, Tromsø, Norway
    Acta Obstet Gynecol Scand 88:104-9. 2009
    ..To measure oxygen uptake of term human fetuses and compare the values between those delivered vaginally following normal labor and those delivered by cesarean section before the onset of labor...
  26. doi request reprint IFPA Meeting 2011 workshop report I: Placenta: Predicting future health; roles of lipids in the growth and development of feto-placental unit; placental nutrient sensing; placental research to solve clinical problems--a translational approach
    G Acharya
    Women s Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway
    Placenta 33:S4-8. 2012
    ....
  27. ncbi request reprint Gene expression profile in labouring and non-labouring human placenta near term
    V Sitras
    Department of Obstetrics and Gynaecology, University Hospital of North Norway and Institute of Clinical Medicine, University of Tromsø, PO Box 24, Tromsø N 9038, Norway
    Mol Hum Reprod 14:61-5. 2008
    ..However, none of these was differentially expressed at a significant level (>2.5-fold change and a P-value of <0.01). We conclude that gene expression in near term human placenta is not significantly altered by labour...
  28. ncbi request reprint First-trimester, three-dimensional transvaginal ultrasound volumetry in normal pregnancies and spontaneous miscarriages
    G Acharya
    Department of Obstetrics and Gynaecology, Whittington Hospital, London, UK
    Ultrasound Obstet Gynecol 19:575-9. 2002
    ..The aim of this study was to perform three-dimensional ultrasound volumetry of intrauterine contents in cases of normal and failed pregnancies and correlate these with conventional two-dimensional measurements...
  29. ncbi request reprint Use of ultrasound to improve the safety of postgraduate training in obstetrics and gynaecology
    G Acharya
    Whittington Hospital, Highgate Hill, N19 5NF, London, UK
    Eur J Ultrasound 13:53-9. 2001
    ..Ultrasound can be used to demonstrate and guide several procedures that have been performed 'blindly' in the past. This technology can reduce the risks associated with training and supervision of junior doctors...
  30. ncbi request reprint The fetal circulation
    Torvid Kiserud
    University of Bergen, Department of Obstetrics and Gynecology, Bergen, Norway
    Prenat Diagn 24:1049-59. 2004
    ....
  31. ncbi request reprint Does gestational sac volume predict the outcome of missed miscarriage managed expectantly?
    Ganesh Acharya
    Department of Obstetrics and Gynecology, Whittington Hospital, Highgate Hill, London N19 5NF, United Kingdom
    J Clin Ultrasound 30:526-31. 2002
    ..The aim of this study was to investigate whether gestational sac volume (GSV) can predict the outcome of missed miscarriages that are managed expectantly...
  32. ncbi request reprint Fetal oxygenation and Doppler ultrasonography of cardiovascular hemodynamics in a chronic near-term sheep model
    Kaarin Mäkikallio
    Department of Obstetrics and Gynecology, University of Oulu, Oulu, Finland
    Am J Obstet Gynecol 194:542-50. 2006
    ..We hypothesized that a decrease in fetal oxygenation without acidemia in a near-term fetal sheep leads to cardiovascular hemodynamic changes that are detectable by Doppler ultrasonography...
  33. ncbi request reprint Fetal echocardiography during routine first-trimester screening: a feasibility study in an unselected population
    Tommi Vimpelli
    Central Maternity Unit, Tampere Health Centre, Tampere, Finland
    Prenat Diagn 26:475-82. 2006
    ..To evaluate the feasibility of obtaining standard echocardiographic views of the fetal heart during routine first-trimester screening and construct reference ranges for cardiac biometry at 11 + 0 to 13 + 6 weeks of gestation...
  34. ncbi request reprint Metabolic acidosis decreases fetal myocardial isovolumic velocities in a chronic sheep model of increased placental vascular resistance
    Ganesh Acharya
    Department of Pediatrics, University of South Florida College of Medicine and All Children s Hospital, Children s Research Institute, 801 6th St South, St Petersburg, FL 33701, USA
    Am J Physiol Heart Circ Physiol 294:H498-504. 2008
    ..However, acute metabolic acidosis impaired myocardial contractility during the isovolumic phase and relaxation during the isovolumic and early filling phases of the cardiac cycle...
  35. ncbi request reprint Functional assessment of the evolution of congenital heart disease in utero
    Ganesh Acharya
    Department of Pediatrics, University of South Florida College of Medicine and All Children s Hospital, Children s Research Institute, 801 6th Street South, St Petersburg, FL 33701, USA
    Curr Opin Pediatr 19:533-7. 2007
    ..This article reviews recent developments in the assessment of changes in structure and function in the fetal heart with the focus on congenital heart disease malformations...
  36. ncbi request reprint [Postpartum hemorrhage--prophylaxis and treatment in Norway]
    Ashild Bjørnerem
    Kvinneklinikken Universitetssykehuset Nord Norge 9038 Tromsø
    Tidsskr Nor Laegeforen 122:2536-7. 2002
    ..To what extent this evidence is implemented in clinical practice in Norway is not known...
  37. ncbi request reprint Prenatal diagnosis of fetal hydrops associated with Down's syndrome in a 40-year-old woman with a mosaic Turner's karyotype (45,X/47,XXX)
    Ganesh Acharya
    Department of Obstetrics and Gynecology, University Hospital of North Norway, Tromsø
    Acta Obstet Gynecol Scand 82:773-4. 2003
  38. ncbi request reprint Endogenous sex hormones in relation to age, sex, lifestyle factors, and chronic diseases in a general population: the Tromsø Study
    Ashild Bjørnerem
    Institute of Community Medicine, University of Tromsø, N 9037 Tromsø, Norway
    J Clin Endocrinol Metab 89:6039-47. 2004
    ..001). Men with chronic diseases had lower levels of DHEAS, compared with healthy men (P < 0.001). Smokers had higher DHEAS levels than nonsmokers. Further studies are needed to confirm these hormonal changes with age and disease...
  39. doi request reprint Controversies of fetal cardiac intervention
    Mladen Pavlovic
    Department of Pediatrics, University of South Florida College of Medicine and All Children s Hospital, Children s Research Institute, St Petersburg, FL, USA
    Early Hum Dev 84:149-53. 2008
    ..This review is an attempt to provide a balanced opinion and an update on fetal cardiac intervention...