Publications by authors named "Ka Y Tse"

Background: Recurrent gynecological clear cell carcinoma (rGCCC) has a low objective response rate (ORR) to chemotherapy. Previous preclinical and clinical data suggest a potential synergy between immune checkpoint inhibitors and bevacizumab in rGCCC. Dostarlimab, a humanized monoclonal antibody targeting programmed cell death protein 1 (PD-1), combined with the anti-angiogenic bevacizumab, presents a novel therapeutic approach.

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Cervical cancer remains a disease burden in Asia. The Asia and Oceania Federation of Obstetrics and Gynecology envisages a need to produce a set of recommendations on the implementation of human papilloma virus vaccination program for both lower-middle-income countries (LMICs) and high-income countries (HICs), with an attempt to harmonize the practices yet allow flexibility to cater for different cultures, religions, needs and background of individual countries/cities. International guidelines and literature were sought, and recommendations were made in seven selected areas, including (i) the target groups for vaccination, (ii) the doses of vaccination including the use of single-dose vaccination, (iii) the types of vaccines, (iv) suggestions for special populations including those with previous HPV infection, human immunodeficiency virus carriers, and lesbian, gay, bisexual, transgender, questioning/queer group, (v) inter-changeability and the need of revaccination/booster, (vi) novel technologies and vaccines, and (vii) public education.

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Purpose: Patients with advanced endometrial cancer (EC) who progress on or after platinum-based therapy and immunotherapy have poor prognosis. We report efficacy and safety of sacituzumab govitecan (SG), a trophoblast cell-surface antigen 2 (Trop-2)-directed antibody-drug conjugate, in patients with advanced EC.

Methods: TROPiCS-03 (ClinicalTrials.

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Purpose: Uterine leiomyosarcoma (LMS) is an aggressive sarcoma and a subset of which exhibits DNA repair defects. Polo-like kinase 4 (PLK4) precisely modulates mitosis, and its inhibition causes chromosome missegregation and increased DNA damage. We hypothesize that PLK4 inhibition is an effective LMS treatment.

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Article Synopsis
  • Chemotherapy is important for treating gestational trophoblastic neoplasia (GTN), but its effects on fertility are not fully understood, leading to a study comparing GTN patients and those with molar pregnancies (MP).
  • The study involved 57 GTN patients and analyzed serum AMH levels before and after treatment with single-agent or combination chemotherapy, revealing that combination therapy resulted in lower levels, particularly noticeable at 12 months.
  • Despite the differences in hormone levels, pregnancy success rates were similar between the two groups, with longer times to first pregnancy for those on combination therapy, highlighting the need for careful patient counseling regarding fertility post-treatment.
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Objectives: The study aimed to compare the diagnostic accuracies of 2-[F]FDG PET/CT and contrast-enhanced CT (ceCT) after neoadjuvant chemotherapy (NACT) in advanced ovarian cancer (OC).

Materials And Methods: This study consisted historical observational cohort and prospective validation cohort. Patients with newly diagnosed stage III-IV OC scheduled for NACT were recruited, with imaging performed after three to six cycles of NACT before interval debulking surgery.

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Over the last quarter of a century, fluorine-18-fluorodeoxyglucose (FDG) PET/computed tomography (CT) has revolutionized the diagnostic algorithm of ovarian cancer, impacting on the initial disease evaluation including staging and surgical planning, treatment response assessment and prognostication, to the most important role in detection of recurrent disease. The role of FDG PET/CT is expanding with the adoption of new therapeutic agents. Other non-FDG tracers have been explored with fibroblast activation protein inhibitor being promising.

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Epithelial ovarian cancer (EOC) is a heterogeneous disease composed of different cell types with different molecular aberrations. Traditional cell lines and mice models cannot recapitulate the human tumor biology and tumor microenvironment (TME). Patient-derived organoids (PDOs) are freshly derived from patients' tissues and are then cultured with extracellular matrix and conditioned medium.

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This study aimed to assess the feasibility of patient-initiated follow-up (PIFU) in combination with regular tumour marker monitoring as an alternative to conventional hospital follow-up for ovarian cancer survivors. Women who had recently completed treatment for ovarian cancer and had a raised pre-treatment tumour marker were recruited. Participants were allocated to PIFU (intervention group) or conventional hospital follow-up (control group) according to their own preference.

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Background: Despite the introduction of cervical cancer screening and human papillomavirus (HPV) vaccines, the utilization pattern was not standardized. The aim of this study was to elicit the current prevention care in Asia-Oceania.

Methods: An online questionnaire was circulated to different countries/cities in Asia-Oceania.

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Objective: The dilemma in treating cervical high-grade squamous intraepithelial lesion (HSIL) is how to achieve complete excision to minimize the risk of cervical cancer while sparing the anatomy of the cervix and its ability to function during pregnancy. The optimal management for positive margins after excisional treatment is still controversial. This study was conducted to determine the clinical and histologic predictors of residual/recurrent HSIL and assess the outcome of women with positive margin.

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Lymph node status is important in predicting the prognosis and guiding adjuvant treatment in endometrial cancer. However, previous studies showed that systematic lymphadenectomy conferred no therapeutic values in clinically early-stage endometrial cancer but might lead to substantial morbidity and impact on the quality of life of the patients. The sentinel lymph node is the first lymph node that tumor cells drain to, and sentinel lymph node biopsy has emerged as an acceptable alternative to full lymphadenectomy in both low-risk and high-risk endometrial cancer.

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High-risk human papillomavirus (HR-HPV) testing has become an increasing important strategy in primary cervical cancer screening in recent years. It warrants the evaluation of molecular-based HPV tests for accuracy and efficacy of screening. The performance of Roche Cobas 4800 HPV test was validated and compared with Digene Hybrid Capture 2 (HC2) high-risk HPV DNA test for primary screening in a large Chinese screening cohort.

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The accurate prediction of malignancy for a pelvic mass detected on ultrasound allows for appropriate referral to specialised care. IOTA simple rules are one of the best methods but are inconclusive in 25% of cases, where subjective assessment by an expert sonographer is recommended but may not always be available. In the present paper, we evaluate the methods for assessing the nature of a pelvic mass, including IOTA with subjective assessment by expert ultrasound, RMI and ROMA.

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Non-epithelial cancers arising from the ovary are uncommon malignancies. Germ cell tumors of the ovary arise from primordial germ cells, and sex cord-stromal tumors of the ovary represent a cluster of tumors arising from the sex cord and stromal compartment. Most patients diagnosed with germ cell tumors are young adults and adolescent females.

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Frozen sections of uterine smooth muscle tumors are infrequently required, and related diagnostic difficulties are seldom discussed. We analyzed the clinicopathologic features of 112 frozen sections of uterine smooth muscle tumors and determined the accuracy, reasons for deferrals, and causes of interpretational errors. Most patients (median age, 45 y) presented with pelvic mass symptoms (53%).

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Objective: To examine the associations of intravoxel incoherent motion (IVIM) parameters with treatment response in cervical cancer following concurrent chemoradiotherapy (CCRT).

Materials And Methods: Forty-five patients, median age of 58 years (range: 28-82), with pre-CCRT and post-CCRT MRI, were retrospectively analysed. The IVIM parameters pure diffusion coefficient (D) and perfusion fraction (f) were estimated using the full b-value distribution (BVD) as well as an optimised subsample BVD.

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Introduction: Sentinel lymph node dissection is widely used in the staging of endometrial cancer. Variation in surgical techniques potentially impacts diagnostic accuracy and oncologic outcomes, and poses barriers to the comparison of outcomes across institutions or clinical trial sites. Standardization of surgical technique and surgical quality assessment tools are critical to the conduct of clinical trials.

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Since the outbreak of COVID-19, there have already been over 26 million people being infected and it is expected that the pandemic will not end in near future. Not only the daily activities and lifestyles of individuals have been affected, the medical practice has also been modified to cope with this emergency catastrophe. In particular, the cancer services have faced an unprecedented challenge.

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Aim: To review the clinical use and the effectiveness of tamoxifen in patients with advanced or recurrent ovarian cancer.

Methods: A retrospective review of clinical records was conducted in patients who received tamoxifen for the treatment of ovarian cancer between 2002 and 2016. We reviewed the clinical setting that it was given, duration of use, patients' tolerability, clinical benefit and progression-free survival.

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Objective: To assess clinical and psychosocial outcomes of nurse-led follow-up in survivorship care of gynaecological malignancies.

Methods: Women with endometrial or ovarian cancer who were attending regular post-treatment follow-up at a tertiary referral centre were randomised into two groups-group-1: telephone follow-up by nurses and group-2: gynaecologists-led clinic follow-up. Women in group-1 were asked about their symptoms and quality of life (QoL) by nurses.

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Objective: To examine the associations of histogram features of T2-weighted (T2W) images and apparent diffusion coefficient (ADC) with treatment response in locally advanced cervical cancer (LACC) following concurrent chemoradiotherapy (CCRT).

Materials And Methods: Fifty-eight patients who underwent a 4-week CCRT regimen with MRI prior to treatment (pre-CCRT) and after treatment (post-CCRT) were retrospectively analysed. Histogram features were calculated from volumes of interest (VOIs) from one radiologist on T2W images and ADC maps.

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Recent changes in the classification of cervical adenocarcinomas have re-categorized serous carcinoma as potentially nonexistent. However, clinical and pathological profiles of cervical adenocarcinomas with serous-like morphological features have not been systematically evaluated using the latest taxonomy and biomarkers. We studied 14 cases of primary cervical carcinomas with serous-like morphologies (papillary and micropapillary patterns).

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This article discusses the emerging roles of F-FDG PET/CT and DWI in the assessment of peritoneal carcinomatosis in ovarian carcinoma from diagnostic accuracy to disease prognostication with gross pathologic correlation. PET/CT and DWI have incremental clinical values over conventional modalities with high predictive values of incomplete cytoreduction in ovarian carcinoma. The respective quantitative metrics offer evaluation of tumor burden with prognostic value in ovarian carcinoma.

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