Hextan Yuen-Sheung Ngan

Prof. Hextan Yuen-Sheung Ngan

Department of Obstetrics and Gynecology, 6th floor, Professorial Block, Queen Mary Hospital, Pokfulam Road, Hong Kong, China
orcid

Research Focus & Metrics

Academic Career Length

44Years (1983-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 November 2006 in International Journal of Gynecology & Obstetrics
Verified
Journal Article
Closed access
AHApm Heintz
Apm Heintz
Franco OdicinoFranco Odicino
Franco Odicino
PMPatrick Maisonneuve
Patrick Maisonneuve
MQMa Quinn
Ma Quinn
JBJl Benedet
Jl Benedet
UBU Beller
U Beller

1 November 2006 in International Journal of Gynecology & Obstetrics
Verified
Journal Article
Closed access
WCWt Creasman
Wt Creasman
Franco OdicinoFranco Odicino
Franco Odicino
PMPatrick Maisonneuve
Patrick Maisonneuve
MQMa Quinn
Ma Quinn
UBU Beller
U Beller
SPS Pecorelli
S Pecorelli

1 November 2006 in International Journal of Gynecology & Obstetrics
Verified
Journal Article
Closed access
MQMa Quinn
Ma Quinn
JBJl Benedet
Jl Benedet
Franco OdicinoFranco Odicino
Franco Odicino
PMPatrick Maisonneuve
Patrick Maisonneuve
UBU Beller
U Beller
SPS Pecorelli
S Pecorelli

28 March 2017 in JAMA
Verified
Journal Article
Closed access
PDF file
MJMonika Janda
Monika Janda
VGVal Gebski
Val Gebski
LDLucy C. Davies
Lucy C. Davies
PFPeta Forder
Peta Forder
ABAlison Brand
Alison Brand
AOAndreas Obermair
Andreas Obermair
Importance Standard treatment for endometrial cancer involves removal of the uterus, tubes, ovaries, and lymph nodes. Few randomized trials have compared disease-free survival outcomes for surgical approaches. Objective To investigate whether total laparoscopic hysterectomy (TLH) is equivalent to total abdominal hysterectomy (TAH) in women with treatment-naive endometrial cancer. Design, Setting, and Participants The Laparoscopic Approach to Cancer of the Endometrium (LACE) trial was a multinational, randomized equivalence trial conducted between October 7, 2005, and June 30, 2010, in which 27 surgeons from 20 tertiary gynecological cancer centers in Australia, New Zealand, and Hong Kong randomized 760 women with stage I endometrioid endometrial cancer to either TLH or TAH. Follow-up ended on March 3, 2016. Interventions Patients were randomly assigned to undergo TAH (n = 353) or TLH (n = 407). Main Outcomes and Measures The primary outcome was disease-free survival, which was measured as the interval between surgery and the date of first recurrence, including disease progression or the development of a new primary cancer or death assessed at 4.5 years after randomization. The prespecified equivalence margin was 7% or less. Secondary outcomes included recurrence of endometrial cancer and overall survival. Results Patients were followed up for a median of 4.5 years. Of 760 patients who were randomized (mean age, 63 years), 679 (89%) completed the trial. At 4.5 years of follow-up, disease-free survival was 81.3% in the TAH group and 81.6% in the TLH group. The disease-free survival rate difference was 0.3% (favoring TLH; 95% CI, −5.5% to 6.1%;P = .007), meeting criteria for equivalence. There was no statistically significant between-group difference in recurrence of endometrial cancer (28/353 in TAH group [7.9%] vs 33/407 in TLH group [8.1%]; risk difference, 0.2% [95% CI, −3.7% to 4.0%];P = .93) or in overall survival (24/353 in TAH group [6.8%] vs 30/407 in TLH group [7.4%]; risk difference, 0.6% [95% CI, −3.0% to 4.2%];P = .76). Conclusions and Relevance Among women with stage I endometrial cancer, the use of total abdominal hysterectomy compared with total laparoscopic hysterectomy resulted in equivalent disease-free survival at 4.5 years and no difference in overall survival. These findings support the use of laparoscopic hysterectomy for women with stage I endometrial cancer. Trial Registration clinicaltrials.gov Identifier:NCT00096408; Australian New Zealand Clinical Trials Registry:CTRN12606000261516

11 October 2018 in International Journal of Gynecology & Obstetrics
Verified
Journal Article
Open access
PDF file
HNHextan Yuen-Sheung Ngan
Hextan Yuen-Sheung Ngan
MSMichael J. Seckl
Michael J. Seckl
RBRoss S. Berkowitz
Ross S. Berkowitz
YXYang Xiang
Yang Xiang
FGFrançois Golfier
François Golfier
LMLeon Massuger
Leon Massuger
Gestational trophoblastic disease (GTD) arises from abnormal placenta and is composed of a spectrum of premalignant to malignant disorders. Changes in epidemiology of GTD have been noted in various countries. In addition to histology, molecular genetic studies can help in the diagnostic pathway. Earlier detection of molar pregnancy by ultrasound has resulted in changes in clinical presentation and decreased morbidity from uterine evacuation. Follow‐up with human chorionic gonadotropin (hCG) is essential for early diagnosis of gestational trophoblastic neoplasia (GTN). The duration of hCG monitoring varies depending on histology type and regression rate. Low‐risk GTN (FIGO Stages I–III: score <7) is treated with single‐agent chemotherapy but may require additional agents; although scores 5–6 are associated with more drug resistance, overall survival approaches 100%. High‐risk GTN (FIGO Stages II–III: score >7 and Stage IV) is treated with multiple agent chemotherapy, with or without adjuvant surgery for excision of resistant foci of disease or radiotherapy for brain metastases, achieving a survival rate of approximately 90%. Gentle induction chemotherapy helps reduce early deaths in patients with extensive tumor burden, but late mortality still occurs from recurrent resistant tumors.

1 July 2010 in Journal of Clinical Oncology
Verified
Journal Article
Closed access
BMBradley J. Monk
Bradley J. Monk
THThomas J. Herzog
Thomas J. Herzog
SKStanley B. Kaye
Stanley B. Kaye
CKCarolyn N. Krasner
Carolyn N. Krasner
JVJan B. Vermorken
Jan B. Vermorken
APAndrés M. Poveda
Andrés M. Poveda
Purpose: The objective of this study was to compare the efficacy and safety of trabectedin plus pegylated liposomal doxorubicin (PLD) with that of PLD alone in women with recurrent ovarian cancer after failure of first-line, platinum-based chemotherapy.Patients and Methods: Women ≥ 18 years, stratified by performance status (0 to 1 v 2) and platinum sensitivity, were randomly assigned to receive an intravenous infusion of PLD 30 mg/m2followed by a 3-hour infusion of trabectedin 1.1 mg/m2every 3 weeks or PLD 50 mg/m2every 4 weeks. The primary end point was progression-free survival (PFS) by independent radiology assessment.Results: Patients (N = 672) were randomly assigned to trabectedin/PLD (n = 337) or PLD (n = 335). Median PFS was 7.3 months with trabectedin/PLD v 5.8 months with PLD (hazard ratio, 0.79; 95% CI, 0.65 to 0.96; P = .0190). For platinum-sensitive patients, median PFS was 9.2 months v 7.5 months, respectively (hazard ratio, 0.73; 95% CI, 0.56 to 0.95; P = .0170). Overall response rate (ORR) was 27.6% for trabectedin/PLD v 18.8% for PLD (P = .0080); for platinum-sensitive patients, it was 35.3% v 22.6% (P = .0042), respectively. ORR, PFS, and overall survival among platinum-resistant patients were not statistically different. Neutropenia was more common with trabectedin/PLD. Grade 3 to 4 transaminase elevations were also more common with the combination but were transient and noncumulative. Hand-foot syndrome and mucositis were less frequent with trabectedin/PLD than with PLD alone.Conclusion: When combined with PLD, trabectedin improves PFS and ORR over PLD alone with acceptable tolerance in the second-line treatment of recurrent ovarian cancer.