Kah Teik Chew

Dr. Kah Teik Chew

Department of Obstetrics & Gynaecology, Universiti Kebangsaan Malaysia Medical Centre
orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

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

Representative Publications

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7 March 2021 in Diagnostics
Verified
Journal Article
Open access
PDF file
GAGhofraan Atallah
Ghofraan Atallah
HAHaslinda Abd Aziz
Haslinda Abd Aziz
Kah Teik ChewKah Teik Chew
Kah Teik Chew
MSMohamad Nasir Shafiee
Mohamad Nasir Shafiee
Nirmala KampanNirmala Kampan
Nirmala Kampan
Ovarian cancer is the eighth-most common cause of death among women worldwide. In the absence of distinctive symptoms in the early stages, the majority of women are diagnosed in advanced stages of the disease. Surgical debulking and systemic adjuvant chemotherapy remain the mainstays of treatment, with the development of chemoresistance in up to 75% of patients with subsequent poor treatment response and reduced survival. Therefore, there is a critical need to revisit existing, and identify potential biomarkers that could lead to the development of novel and more effective predictors for ovarian cancer diagnosis and prognosis. The capacity of these biomarkers to predict the existence, stages, and associated therapeutic efficacy of ovarian cancer would enable improvements in the early diagnosis and survival of ovarian cancer patients. This review not only highlights current evidence-based ovarian-cancer-specific prognostic and diagnostic biomarkers but also provides an update on various technologies and methods currently used to identify novel biomarkers of ovarian cancer.

Verified
Journal Article
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Mohd Nazzary Mamat @ YusofMohd Nazzary Mamat @ Yusof
Mohd Nazzary Mamat @ Yusof
Kah Teik ChewKah Teik Chew
Kah Teik Chew
Nirmala KampanNirmala Kampan
Nirmala Kampan
MSMohamad Nasir Shafiee
Mohamad Nasir Shafiee
The landscape of diagnosing and treating endometrial cancer is undergoing a profound transformation due to the integration of molecular analysis and innovative therapeutic approaches. For several decades, the cornerstone treatments for endometrial cancer have included surgical resection, cytotoxic chemotherapy, hormonal therapy, and radiation therapy. However, in recent years, the concept of personalised medicine has gained momentum, reshaping the way clinicians approach cancer treatment. Tailoring treatments based on specific biomarkers has evolved into a standard practice in both initial and recurrent therapy protocols. This review aims to provide an in-depth exploration of the current state of molecular analysis and treatment strategies in the context of endometrial cancer, focusing on the immunological aspect of the PD-1/PD-L1 axis. Furthermore, it seeks to shed light on emerging and innovative approaches that hold promise for the future modulation of endometrial cancer treatments. In essence, as researchers delve into the complex molecular landscape of endometrial cancer and harness the understanding of the PD-1/PD-L1 axis, we are paving the way for more targeted, effective, and personalised therapies that have the potential to significantly improve the outcomes and quality of life for patients with this challenging disease.

Verified
Journal Article
Open access
PDF file
GAGhofraan Atallah
Ghofraan Atallah
Nirmala KampanNirmala Kampan
Nirmala Kampan
Kah Teik ChewKah Teik Chew
Kah Teik Chew
NMNorfilza Mohd Mokhtar
Norfilza Mohd Mokhtar
RZReena Md Zin
Reena Md Zin
HAHaslinda Abd Aziz
Haslinda Abd Aziz
Ovarian cancer is a lethal reproductive tumour affecting women worldwide. The advancement in presentation and occurrence of chemoresistance are the key factors for poor survival among ovarian cancer women. Surgical debulking was the mainstay of systemic treatment for ovarian cancer, which was followed by a successful start to platinum-based chemotherapy. However, most women develop platinum resistance and relapse within six months of receiving first-line treatment. Thus, there is a great need to identify biomarkers to predict platinum resistance before enrolment into chemotherapy, which would facilitate individualized targeted therapy for these subgroups of patients to ensure better survival and an improved quality of life and overall outcome. Harnessing the immune response through immunotherapy approaches has changed the treatment way for patients with cancer. The immune outline has emerged as a beneficial tool for recognizing predictive and prognostic biomarkers clinically. Studying the tumour microenvironment (TME) of ovarian cancer tissue may provide awareness of actionable targets for enhancing chemotherapy outcomes and quality of life. This review analyses the relevance of immunohistochemistry biomarkers as prognostic biomarkers in predicting chemotherapy resistance and improving the quality of life in ovarian cancer.

1 February 2020 in Vaccine
Verified
Journal Article
Closed access
AKAida Kalok
Aida Kalok
SLSweet Yi Esther Loh
Sweet Yi Esther Loh
Kah Teik ChewKah Teik Chew
Kah Teik Chew
NANor Haslinda Abdul Aziz
Nor Haslinda Abdul Aziz
SSShamsul Azhar Shah
Shamsul Azhar Shah
ZMZaleha Abdullah Mahdy
Zaleha Abdullah Mahdy

13 August 2022 in Cancers
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Journal Article
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Mohd Nazzary Mamat @ YusofMohd Nazzary Mamat @ Yusof
Mohd Nazzary Mamat @ Yusof
Kah Teik ChewKah Teik Chew
Kah Teik Chew
Nirmala KampanNirmala Kampan
Nirmala Kampan
HAHaslinda Abd Aziz
Haslinda Abd Aziz
RZReena Md Zin
Reena Md Zin
MSMohamad Nasir Shafiee
Mohamad Nasir Shafiee
Endometrial cancer (EC) is one of the most common malignancies of the female genital tract and its current treatment mainly relies on surgical removal of the tumour bulk, followed by adjuvant radiotherapy with or without chemotherapy/hormonal therapy. However, the outcomes of these approaches are often unsatisfactory and are associated with severe toxicity and a higher recurrence rate of the disease. Thus, more clinical research exploring novel medical intervention is needed. Involvement of the immune pathway in cancer has become important and the finding of a high positive expression of programmed cell death-ligand 1 (PD-L1) in EC may offer a better targeted therapeutic approach. Numerous studies on the PD-L1 role in EC have been conducted, but the results remained inconclusive. Hence, this systematic review was conducted to provide an update and robust analysis in order to determine the pooled prevalence of PD-L1 expression in EC and evaluate its association with clinicopathological features in different focuses of tumour cells (TC) and immune cells (IC). A comprehensive literature search was conducted using the PubMed, Web of Science, and Scopus databases. Twelve articles between 2016 and 2021 with 3023 EC cases met the inclusion criteria. The effect of PD-L1 expression on the outcome parameters was estimated by the odds ratios (ORs) with 95% confidence intervals (CIs) for each study. The pooled prevalence of PD-L1 was 34.26% and 51.39% in the tumour cell and immune cell, respectively, among women with EC. The PD-L1 expression was significantly associated with Stage III/IV disease (in both TC and IC) and correlated to the presence of lympho-vascular invasion in IC. However, the PD-L1 expression in TC was not associated with the age groups, histology types, myometrial invasion, and lympho-vascular invasion. In IC, PD-L1 expression was not associated with age group, histology type, and myometrial invasion. The meta-analysis survival outcomes of PD-L1 high expression had a significant association with worse OS in IC but not in TC.

26 January 2022 in PLOS ONE
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ZAZainab Hananah Abang Abdullah
Zainab Hananah Abang Abdullah
Kah Teik ChewKah Teik Chew
Kah Teik Chew
VVV. Ramesh V. Velayudham
V. Ramesh V. Velayudham
ZYZainab Yahaya
Zainab Yahaya
AJAmilia Afzan Mohd Jamil
Amilia Afzan Mohd Jamil
NINor Azlin Mohamed Ismail
Nor Azlin Mohamed Ismail
Objective: To evaluate the association between transvaginal ultrasound scan of cervix and Bishop’s score in predicting successful induction of labour, cut-off points and patients’ tolerability and acceptance for both procedures.Design: A comparative clinical trial.Setting: A tertiary hospital in Selangor, Malaysia.Participants: 294 women planned for elective induction of labour for various indications were included. All women had transvaginal ultrasound to assess the cervical length and digital vaginal examination to assess the Bishop cervical scoring by separate investigators before induction of labour.Primary outcome measure: To evaluate the association of the cervical length by transvaginal ultrasound scan and Bishop score in predicting successful induction of labour.Secondary outcome measure: Variables associated with successful induction of labour and patients’ tolerability and acceptance for transvaginal ultrasound scan of cervix.Results: There was no statistically significant difference among the vaginal and Caesarean delivery groups in terms of mean maternal age, height, weight, body mass index, ethnicity and gestational age at induction. Vaginal delivery occurred in 207 women (70.4%) and 87 women (29.6%) delivered via Caesarean section. There was a high degree of correlation between the cervical length and Bishop score (r-value 0.745; p <0.001). Sonographic assessment of cervical length demonstrated a comparable accuracy in comparison to Bishop score. Analysis using ROC curves noted an optimal cut-off value of ≤27mm for cervical length and Bishop score of ≥ 4, with a sensitivity of 69.1% vs 67%, specificity 60.9% vs 55%, and area under the curves (AUCs) of 0.672 and 0.643 respectively (p<0.001). Multivariate logistic regression analysis demonstrated that parity (OR 2.70), cervical length (OR 0.925), Bishop score (OR 1.272) and presence of funnelling (OR 3.292) were highly significant as independent predictors of success labour induction. Women also expressed significantly less discomfort with transvaginal ultrasound compared with digital vaginal examination.Conclusion: Sonographic assessment of cervical measurement predicts the success of induction of labour with similar diagnostic accuracy with conventional Bishop score.