O S Tang

Summary

Affiliation: The University of Hong Kong
Country: China

Publications

  1. ncbi request reprint A prospective randomized comparison of sublingual and oral misoprostol when combined with mifepristone for medical abortion at 12-20 weeks gestation
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 20:3062-6. 2005
  2. ncbi request reprint Pilot study on the use of sublingual misoprostol with mifepristone in termination of first trimester pregnancy up to 9 weeks gestation
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Rd, Hong Kong SAR, People s Republic of China
    Hum Reprod 17:1738-40. 2002
  3. ncbi request reprint A prospective randomized study on the measured blood loss in medical termination of early pregnancy by three different misoprostol regimens after pretreatment with mifepristone
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 17:2865-8. 2002
  4. ncbi request reprint A prospective randomized study to compare the use of repeated doses of vaginal with sublingual misoprostol in the management of first trimester silent miscarriages
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 18:176-81. 2003
  5. ncbi request reprint Clinical applications of mifepristone
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong, SAR, China
    Gynecol Endocrinol 22:655-9. 2006
  6. ncbi request reprint A prospective, randomized, placebo-controlled trial on the use of mifepristone with sublingual or vaginal misoprostol for medical abortions of less than 9 weeks gestation
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 18:2315-8. 2003
  7. ncbi request reprint A randomized study comparing the use of sublingual to vaginal misoprostol for pre-operative cervical priming prior to surgical termination of pregnancy in the first trimester
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 19:1101-4. 2004
  8. ncbi request reprint The use of misoprostol for early pregnancy failure
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong SAR, China
    Curr Opin Obstet Gynecol 18:581-6. 2006
  9. ncbi request reprint A randomized trial to compare the use of sublingual misoprostol with or without an additional 1 week course for the management of first trimester silent miscarriage
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 21:189-92. 2006
  10. ncbi request reprint The pharmacokinetics and different regimens of misoprostol in early first-trimester medical abortion
    Oi Shan Tang
    Department of Obstetrics and Gynecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong Special Administrative Region, People s Republic of China
    Contraception 74:26-30. 2006

Collaborators

Detail Information

Publications63

  1. ncbi request reprint A prospective randomized comparison of sublingual and oral misoprostol when combined with mifepristone for medical abortion at 12-20 weeks gestation
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 20:3062-6. 2005
    ..A prospective double-blinded placebo-controlled trial was done to compare the efficacy and side-effects of sublingual to oral misoprostol when used with mifepristone for medical abortion from 12 to 20 weeks gestation...
  2. ncbi request reprint Pilot study on the use of sublingual misoprostol with mifepristone in termination of first trimester pregnancy up to 9 weeks gestation
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Rd, Hong Kong SAR, People s Republic of China
    Hum Reprod 17:1738-40. 2002
    ..A combination of mifepristone and misoprostol provides an effective method of medical abortion for early pregnancy. A new route of administration of misoprostol, the sublingual route, was investigated in this study...
  3. ncbi request reprint A prospective randomized study on the measured blood loss in medical termination of early pregnancy by three different misoprostol regimens after pretreatment with mifepristone
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 17:2865-8. 2002
    ..Prolonged vaginal bleeding is a common complaint after medical abortion. The effect of a 1 week course of daily oral misoprostol after medical abortion with mifepristone and misoprostol on the amount of post-abortal blood loss was studied...
  4. ncbi request reprint A prospective randomized study to compare the use of repeated doses of vaginal with sublingual misoprostol in the management of first trimester silent miscarriages
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 18:176-81. 2003
    ..A randomized controlled trial comparing sublingual with vaginal administration of misoprostol for medical management of silent miscarriages...
  5. ncbi request reprint Clinical applications of mifepristone
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong, SAR, China
    Gynecol Endocrinol 22:655-9. 2006
    ..Other applications including treatment for fibroids, endometriosis and various cancers have been explored. However, its association with abortion limits the applications of mifepristone in many of these areas...
  6. ncbi request reprint A prospective, randomized, placebo-controlled trial on the use of mifepristone with sublingual or vaginal misoprostol for medical abortions of less than 9 weeks gestation
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 18:2315-8. 2003
    ..This is the first randomized trial comparing the use of sublingual misoprostol with vaginal misoprostol in combination with mifepristone for termination of early pregnancies up to 63 days...
  7. ncbi request reprint A randomized study comparing the use of sublingual to vaginal misoprostol for pre-operative cervical priming prior to surgical termination of pregnancy in the first trimester
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 19:1101-4. 2004
    ..This study aimed to compare a new route of sublingual administration to the vaginal route of administration for pre-operative cervical priming in first trimester surgical abortion...
  8. ncbi request reprint The use of misoprostol for early pregnancy failure
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong SAR, China
    Curr Opin Obstet Gynecol 18:581-6. 2006
    ..This paper reviews the current management of early pregnancy failure with particular emphasis on the use of misoprostol...
  9. ncbi request reprint A randomized trial to compare the use of sublingual misoprostol with or without an additional 1 week course for the management of first trimester silent miscarriage
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 21:189-92. 2006
    ..This randomized controlled trial compared the use of sublingual misoprostol with or without an additional 1 week course of sublingual misoprostol for the medical management of silent miscarriage...
  10. ncbi request reprint The pharmacokinetics and different regimens of misoprostol in early first-trimester medical abortion
    Oi Shan Tang
    Department of Obstetrics and Gynecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong Special Administrative Region, People s Republic of China
    Contraception 74:26-30. 2006
    ..Further studies are required to determine the optimal dose and route of administration of misoprostol that can give the highest complete abortion rate, lowest ongoing pregnancy rate and least side effects...
  11. ncbi request reprint Misoprostol: pharmacokinetic profiles, effects on the uterus and side-effects
    O S Tang
    Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong SAR, China
    Int J Gynaecol Obstet 99:S160-7. 2007
    ..These studies can help to discover the optimal dose and route of administration of misoprostol for individual clinical applications. Misoprostol is a safe drug but serious complications and teratogenicity can occur with unsupervised use...
  12. ncbi request reprint Pilot study on the use of repeated doses of sublingual misoprostol in termination of pregnancy up to 12 weeks gestation: efficacy and acceptability
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong SAR, China
    Hum Reprod 17:654-8. 2002
    ..A sublingual misoprostol-alone regimen was used in 50 women requesting medical abortion at up to 12 weeks gestation. The efficacy and acceptability of this regimen were studied...
  13. ncbi request reprint Pharmacokinetics of different routes of administration of misoprostol
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 17:332-6. 2002
    ..The pharmacokinetic parameters of four different routes of administration of a single dose of 400 microg of misoprostol were studied...
  14. ncbi request reprint Cortical vein thrombosis misinterpreted as intracranial haemorrhage in severe ovarian hyperstimulation syndrome: case report
    O S Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital and Department of Radiology, Queen Mary Hospital, Pokfulam Road, Hong Kong, China
    Hum Reprod 15:1913-6. 2000
    ..Although the initial MRI picture may be misleading, the diagnosis of thrombosis should always be kept in mind, as it is the commonest cause of intracranial lesions after OHSS...
  15. ncbi request reprint Pilot study on the use of sublingual misoprostol for medical abortion
    O S Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, People s Republic of China
    Contraception 64:315-7. 2001
    ..Prospective randomized studies are required to compare its efficacy and side effects with vaginal misoprostol and to work out the dosage and dosing interval...
  16. ncbi request reprint The effect of contraceptive pills on the measured blood loss in medical termination of pregnancy by mifepristone and misoprostol: a randomized placebo controlled trial
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 17:99-102. 2002
    ....
  17. ncbi request reprint Ultrasound-guided embryo transfer: a prospective randomized controlled trial
    O S Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 16:2310-5. 2001
    ..Recent reports suggested that ultrasound guidance during embryo transfer might improve the pregnancy rate...
  18. ncbi request reprint Comparison of two different doses of lignocaine used in paracervical block during oocyte collection in an IVF programme
    E H Ng
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 15:2148-51. 2000
    ..6) and 14.0 (2.5th-97.5th centiles: 0-99.1). These pain levels during egg collection were not significantly different between the two groups. The use of 200 mg lignocaine in PCB is not justified, even in the absence of toxic effects...
  19. ncbi request reprint Intracervical sodium nitroprusside versus vaginal misoprostol in first trimester surgical termination of pregnancy: a randomized double-blinded controlled trial
    C C W Chan
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Hong Kong SAR, China
    Hum Reprod 20:829-33. 2005
    ..We compared sodium nitroprusside gel to misoprostol, the standard agent for cervical priming in this randomized double-blinded controlled trial...
  20. doi request reprint A randomized trial to compare two dosing intervals of misoprostol following mifepristone administration in second trimester medical abortion
    J Chai
    Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong Special Administrative Region, China
    Hum Reprod 24:320-4. 2009
    ..The objective of this randomized comparison study is to compare two intervals of administration of misoprostol after pretreatment with mifepristone for second trimester medical abortion...
  21. ncbi request reprint Paracervical block with and without conscious sedation: a comparison of the pain levels during egg collection and the postoperative side effects
    E H Ng
    Department of Obstetrics and Gynecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Fertil Steril 75:711-7. 2001
    ..To compare the pain levels during egg collection and the subsequent postoperative side effects in patients receiving a paracervical block (PCB) with and without conscious sedation...
  22. ncbi request reprint Misoprostol for the termination of pregnancy with a live fetus at 13 to 26 weeks
    P C Ho
    Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong Special Administrative Region, China
    Int J Gynaecol Obstet 99:S178-81. 2007
    ..Common side effects of misoprostol-induced termination of pregnancy include gastrointestinal side effects, abdominal cramps, bleeding, fever and chills. Complications may include infection or rarely rupture of uterus...
  23. ncbi request reprint Vaginal misoprostol as medical treatment for first trimester spontaneous miscarriage
    S W Ngai
    Department of Obstetrics and Gynecology, University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong SAR, China
    Hum Reprod 16:1493-6. 2001
    ..This is the first randomized study to compare vaginal misoprostol versus expectant treatment in women presenting with spontaneous miscarriage...
  24. ncbi request reprint Comparison of endometrial and subendometrial blood flows among patients with and without hydrosalpinx shown on scanning during in vitro fertilization treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Fertil Steril 85:333-8. 2006
    ..To compare endometrial and subendometrial blood flows among patients with and without hydrosalpinx (HSP) during in vitro fertilization treatment as measured by a three-dimensional power Doppler ultrasound...
  25. doi request reprint Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial
    V C Y Lee
    Department of Obstetrics and Gynecology, The University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China
    Ultrasound Obstet Gynecol 40:392-7. 2012
    ..The aim of this study was to evaluate the effect of letrozole on uterine artery Doppler flow indices during early pregnancy...
  26. ncbi request reprint A pilot-randomized comparison of sublingual misoprostol with syntometrine on the blood loss in third stage of labor
    H Lam
    Department of Obstetrics and Gynecology, Queen Mary Hospital, Hong Kong SAR, China
    Acta Obstet Gynecol Scand 83:647-50. 2004
    ..To compare sublingual misoprostol with intravenous syntometrine use during third stage of labor by measuring the blood loss...
  27. ncbi request reprint Effect of pituitary downregulation on antral follicle count, ovarian volume and stromal blood flow measured by three-dimensional ultrasound with power Doppler prior to ovarian stimulation
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 19:2811-5. 2004
    ..The aim of this prospective study was to compare antral follicle count (AFC), ovarian volume and ovarian stromal blood flow measured by three-dimensional (3D) power Doppler ultrasound before and after pituitary downregulation...
  28. ncbi request reprint Comparison of 2-dimensional, 3-dimensional, and vascular ultrasonographic parameters for endometrial receptivity between 2 consecutive stimulated in vitro fertilization cycles
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynecology, The University of Hong Kong, 6 F, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong
    J Ultrasound Med 26:931-9. 2007
    ..We compared the ultrasonographic parameters for endometrial receptivity between 2 consecutive in vitro fertilization (IVF) cycles in the same patients...
  29. ncbi request reprint WHO multinational study of three misoprostol regimens after mifepristone for early medical abortion. I: Efficacy
    Helena von Hertzen
    UNDP UNFPA WHO World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland
    BJOG 110:808-18. 2003
    ....
  30. ncbi request reprint The significance of the number of antral follicles prior to stimulation in predicting ovarian responses in an IVF programme
    E H Ng
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 15:1937-42. 2000
    ....
  31. ncbi request reprint Factors affecting endometrial and subendometrial blood flow measured by three-dimensional power Doppler ultrasound during IVF treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 21:1062-9. 2006
    ..No information exists in the literature regarding the factors affecting the blood flow towards the endometrial and subendometrial regions during IVF treatment...
  32. ncbi request reprint A prospective randomised comparison of sublingual and vaginal misoprostol in second trimester termination of pregnancy
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, University of Hong Kong, Queen Mary Hospital, Hong Kong, China
    BJOG 111:1001-5. 2004
    ..To compare the efficacy, side effects and acceptability of sublingual and vaginal misoprostol for second trimester medical abortion...
  33. ncbi request reprint Comparison of endometrial and subendometrial blood flow measured by three-dimensional power Doppler ultrasound between stimulated and natural cycles in the same patients
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 19:2385-90. 2004
    ..Low implantation rates in stimulated IVF cycles may be related to suboptimal endometrial perfusion. Endometrial and subendometrial blood flow was compared between stimulated and natural cycles in the same patients undergoing IVF...
  34. ncbi request reprint Endometrial and subendometrial blood flow measured during early luteal phase by three-dimensional power Doppler ultrasound in excessive ovarian responders
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, 6 F, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong, People s Republic of China
    Hum Reprod 19:924-31. 2004
    ..Endometrial and subendometrial blood flow were compared between excessive responders (serum E(2) on the day of HCG >20 000 pmol/l) and moderate responders (E(2) < or =20 000 pmol/l)...
  35. ncbi request reprint Changes in endometrial and subendometrial blood flow in IVF
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Reprod Biomed Online 18:269-75. 2009
    ....
  36. ncbi request reprint WHO multinational study of three misoprostol regimens after mifepristone for early medical abortion
    Helena Honkanen
    Helsinki University Central Hospital, Finland
    BJOG 111:715-25. 2004
    ..To compare the side effect profiles of regimens of oral and vaginal administration of misoprostol after a single oral dose of 200 mg of mifepristone and to investigate patients' perceptions of medical abortion...
  37. ncbi request reprint In vitro fertilization and embryo transfer during natural cycles
    E H Ng
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    J Reprod Med 46:95-9. 2001
    ..To report the results of in vitro fertilization and embryo transfer (IVF/ET) performed during natural cycles...
  38. ncbi request reprint A prospective, randomized, double-blind study to compare two doses of recombinant human chorionic gonadotropin in inducing final oocyte maturity and the hormonal profile during the luteal phase
    Carina C W Chan
    Department of Obstetrics and Gynecology, University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong SAR, China
    J Clin Endocrinol Metab 90:3933-8. 2005
    ..Different doses of human chorionic gonadotropin (hCG) have been used in various in vitro fertilization (IVF) treatment protocols to achieve final oocyte maturation. There is as yet no agreement on the optimum dose required...
  39. ncbi request reprint Effects of Chinese green tea on weight, and hormonal and biochemical profiles in obese patients with polycystic ovary syndrome--a randomized placebo-controlled trial
    Carina C W Chan
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong SAR, China
    J Soc Gynecol Investig 13:63-8. 2006
    ..To study the effects of green tea on body weight, and biochemical and hormonal profiles in obese Chinese women with polycystic ovary syndrome (PCOS)...
  40. ncbi request reprint The prevalence of polycystic ovaries in Chinese women with a history of gestational diabetes mellitus
    Carina C W Chan
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong, SAR, China
    Gynecol Endocrinol 22:516-20. 2006
    ..There was a trend for the study group to have higher ovarian stromal blood flow...
  41. ncbi request reprint Endometrial, subendometrial, and ovarian stromal blood flow in patients treated with two different doses of recombinant human chorionic gonadotropin
    Carina Chi Wai Chan
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, People s Republic of China
    Fertil Steril 85:520-2. 2006
    ..There were no differences in all the indices of endometrial, subendometrial, and ovarian stromal blood flow in women who had received 250 microg or 500 microg of recombinant hCG for final oocyte maturation...
  42. ncbi request reprint Bioavailability of hCG after intramuscular or subcutaneous injection in obese and non-obese women
    Carina C W Chan
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, SAR, China
    Hum Reprod 18:2294-7. 2003
    ..The bioavailability of a drug is affected by its route of administration. Herein, the bioavailability of hCG was compared after intramuscular (i.m.) or subcutaneous (s.c.) injection in obese and non-obese women...
  43. ncbi request reprint Endometrial and subendometrial blood flow measured by three-dimensional power Doppler ultrasound in patients with small intramural uterine fibroids during IVF treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 20:501-6. 2005
    ..We compared endometrial and subendometrial blood flow between women with and without intramural fibroids during IVF treatment...
  44. ncbi request reprint Bone turnover in young hypoestrogenic women on hormonal therapy
    Carina C W Chan
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong SAR, China
    Eur J Obstet Gynecol Reprod Biol 124:204-6. 2006
    ..To compare the biochemical markers of bone turnover in hypoestrogenic women who had been on the standard dosage of Premarin 0.625 mg to that of the age-matched women who were menstruating spontaneously...
  45. ncbi request reprint Pilot study on the use of sublingual misoprostol in termination of pregnancy up to 7 weeks gestation
    Wai Cheung
    The University of Hong Kong, Queen Mary Hospital, Special Administrative Region, Hong Kong, People s Republic of China
    Contraception 68:97-9. 2003
    ..This study was conducted to assess the efficacy and incidence of side effects of a regimen of repeated doses of 400 microg sublingual misoprostol for termination of pregnancy of <7 weeks gestation...
  46. ncbi request reprint Circadian changes in uterine artery and ovarian stromal blood flow after pituitary down-regulation
    Carina C W Chan
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong, SAR
    J Soc Gynecol Investig 12:452-5. 2005
    ..To investigate changes in the uterine artery and ovarian stromal blood flow in relation to the time of the day after pituitary down-regulation during in vitro fertilization treatment...
  47. ncbi request reprint Prostaglandins for induction of second-trimester termination and intrauterine death
    Suk Wai Ngai
    Department of Obstetrics and Gynaecology, The University of Hong Kong 6 F, Queen Mary Hospital, Hong Kong SAR, People s Republic of China
    Best Pract Res Clin Obstet Gynaecol 17:765-75. 2003
    ..In addition, misoprostol can also be used as a cervical priming agent prior to dilatation and evacuation in second-trimester abortion...
  48. ncbi request reprint Comparison of three-dimensional hysterosalpingo-contrast-sonography and diagnostic laparoscopy with chromopertubation in the assessment of tubal patency for the investigation of subfertility
    Carina C W Chan
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, 102 Pokfulam Road, Hong Kong, China
    Acta Obstet Gynecol Scand 84:909-13. 2005
    ..The current study compared the efficacy of 3D-HyCoSy with diagnostic laparoscopy and its feasibility as a screening test for tubal patency...
  49. ncbi request reprint Measurement of serum CA-125 concentrations does not improve the value of Chlamydia trachomatis antibody in predicting tubal pathology at laparoscopy
    E H Ng
    Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 16:775-9. 2001
    ..The discriminative capacity of CAT in the diagnosis of tubal pathology including both proximal and distal obstruction was not improved by measuring serum CA-125, regardless of the threshold values of serum CA-125 concentration...
  50. doi request reprint Ovarian stromal blood flow following clomiphene citrate challenge test in infertile women
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, 6 F, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong, People s Republic of China
    J Clin Ultrasound 36:403-8. 2008
    ..To compare ovarian stromal blood flow indices in the follicular phase and after clomiphene citrate (CC) in infertile women...
  51. doi request reprint Pharmacokinetics of repeated doses of misoprostol
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, 6 F, Professorial Block, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong SAR, China
    Hum Reprod 24:1862-9. 2009
    ..To aid the design of effective and safe regimens, we have investigated the pharmacokinetic parameters after the vaginal or sublingual administration of repeated doses of 400 microg of misoprostol...
  52. ncbi request reprint Medical abortion in the second trimester
    Oi Shan Tang
    Department of Obstetrics and Gynaecology, The University of Hong Kong, China
    Best Pract Res Clin Obstet Gynaecol 16:237-46. 2002
    ..These regimens are still effective with an abortion rate of >90% in 48 hours. However, the induction to abortion interval (15 hours) is much longer. Intra-cervical tents can be used to shorten the induction to abortion intervals...
  53. ncbi request reprint The role of endometrial and subendometrial blood flows measured by three-dimensional power Doppler ultrasound in the prediction of pregnancy during IVF treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 21:164-70. 2006
    ..We aimed to evaluate the role of endometrial and subendometrial blood flows in the prediction of pregnancy during IVF treatment...
  54. ncbi request reprint Endometrial and subendometrial vascularity is higher in pregnant patients with livebirth following ART than in those who suffer a miscarriage
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 22:1134-41. 2007
    ..Blood flow towards the peri-implantation endometrium may have effects on miscarriage and live birth following assisted reproduction treatment, in addition to its role in implantation...
  55. ncbi request reprint The role of endometrial and subendometrial vascularity measured by three-dimensional power Doppler ultrasound in the prediction of pregnancy during frozen-thawed embryo transfer cycles
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong SAR, China
    Hum Reprod 21:1612-7. 2006
    ..A good blood supply to the endometrium is usually considered as an essential requirement for implantation...
  56. ncbi request reprint Ovarian stromal vascularity is not predictive of ovarian response and pregnancy
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Reprod Biomed Online 12:43-9. 2006
    ..Ovarian 3D power Doppler flow indices measured after pituitary down-regulation were not predictive of the ovarian response and pregnancy in the IVF treatment...
  57. ncbi request reprint Ovarian stromal blood flow in the prediction of ovarian response during in vitro fertilization treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, University of Hong Kong, 6 F, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 20:3147-51. 2005
    ..Patients were aged <40 years with basal FSH <10 IU/l on recruitment for IVF treatment...
  58. ncbi request reprint Antral follicle count and FSH concentration after clomiphene citrate challenge test in the prediction of ovarian response during IVF treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Queen Mary Hospital, Pokfulam Road, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 20:1647-54. 2005
    ....
  59. ncbi request reprint A randomized comparison of side effects and patient convenience between Cyclogest suppositories and Endometrin tablets used for luteal phase support in IVF treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, 6 F, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong Special Administrative Region, People s Republic of China
    Eur J Obstet Gynecol Reprod Biol 131:182-8. 2007
    ....
  60. ncbi request reprint The role of endometrial blood flow measured by three-dimensional power Doppler ultrasound in the prediction of pregnancy during in vitro fertilization treatment
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China
    Eur J Obstet Gynecol Reprod Biol 135:8-16. 2007
    ....
  61. ncbi request reprint Mifepristone: contraceptive and non-contraceptive uses
    Pak Chung Ho
    Department of Obstetrics and Gynaecology, University of Hong Kong, Hong Kong
    Curr Opin Obstet Gynecol 14:325-30. 2002
    ..Mifepristone has been used for a number of other indications, but further studies are needed before such treatment can be recommended...
  62. ncbi request reprint A randomized double-blind controlled study of the efficacy of laser-assisted hatching on implantation and pregnancy rates of frozen-thawed embryo transfer at the cleavage stage
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Hum Reprod 20:979-85. 2005
    ..Little information exists in the literature regarding the role of AH in frozen-thawed embryo transfer (FET) cycles...
  63. ncbi request reprint Randomized double-blind comparison of laser zona pellucida thinning and breaching in frozen-thawed embryo transfer at the cleavage stage
    Ernest Hung Yu Ng
    Department of Obstetrics and Gynaecology, The University of Hong Kong, Hong Kong Special Administrative Region, People s Republic of China
    Fertil Steril 89:1147-53. 2008
    ..To compare the implantation and ongoing pregnancy rates of frozen-thawed embryo transfer (FET) using laser thinning with those of laser breaching of the zona pellucida (ZP)...