1.Skill validation study on sentinel lymph node biopsy in breast cancer and the challenges of false-negative, in-transit and micrometastatic nodes
Chen Siew Ng ; Sarojah Arulanantham ; Joon Joon Khoo ; Subathra Sabaratnam ; Yeong Fong Lee ; Chin Fang Ngim
The Medical Journal of Malaysia 2016;71(5):275-281
2.The association between new generation oral contraceptive pill and the development of inflammatory bowel diseases.
Santosh SANAGAPALLI ; Yanna KO ; Viraj KARIYAWASAM ; Siew C NG ; Whitney TANG ; Hithanadura Janaka DE SILVA ; Minhu CHEN ; Kaichun WU ; Satimai ANIWAN ; Ka Kei NG ; David ONG ; Qin OUYANG ; Ida HILMI ; Marcellus SIMADIBRATA ; Pises PISESPONGSA ; Saranya GOPIKRISHNA ; Rupert W LEONG
Intestinal Research 2018;16(3):409-415
BACKGROUND/AIMS: To examine the association between use of oral contraceptive pills (OCPs) and the risk of developing inflammatory bowel diseases (IBD), in a modern cohort. METHODS: A prospective nested case-control study across sites in the Asia-Pacific region was conducted; involving female IBD cases and asymptomatic controls. Subjects completed a questionnaire addressing questions related to OCP use. Primary outcome was the risk of development of IBD of those exposed to OCP versus non-exposure. Secondary outcomes were development of Crohn's disease (CD) versus ulcerative colitis (UC), and whether age of first use of OCP use may be associated with risk of IBD. RESULTS: Three hundred and forty-eight female IBD cases (41% CD, median age: 43 years) and 590 female age-matched controls were recruited. No significant association was found between OCP use and the risk of IBD (odds ratio [OR], 1.65; 95% confidence interval, 0.77–3.13; P=0.22), CD (OR, 1.55) or UC (OR, 1.01). The lack of association persisted when results were adjusted for age and smoking. IBD cases commenced OCP use at a younger age than controls (18 years vs. 20 years, P=0.049). CONCLUSIONS: In this large cohort of subjects from the Asia-Pacific region, we found a modest but not significantly increased risk of developing IBD amongst OCP users.
Case-Control Studies
;
Cohort Studies
;
Colitis, Ulcerative
;
Contraceptives, Oral
;
Crohn Disease
;
Female
;
Humans
;
Inflammatory Bowel Diseases*
;
Prospective Studies
;
Smoke
;
Smoking
3.Surgical management of inflammatory bowel disease in China: a systematic review of two decades.
Qiao YU ; Ren MAO ; Lei LIAN ; Siew chien NG ; Shenghong ZHANG ; Zhihui CHEN ; Yanyan ZHANG ; Yun QIU ; Baili CHEN ; Yao HE ; Zhirong ZENG ; Shomron BEN-HORIN ; Xinming SONG ; Minhu CHEN
Intestinal Research 2016;14(4):322-332
BACKGROUND/AIMS: The past decades have seen increasing incidence and prevalence of inflammatory bowel disease (IBD) in China. This article aimed to summarize the current status and characteristics of surgical management for IBD in China. METHODS: We searched PubMed, Embase, and Chinese databases from January 1, 1990 to July 1, 2014 for all relevant studies on the surgical treatment IBD in China. Eligible studies with sufficient defined variables were further reviewed for primary and secondary outcome measures. RESULTS: A total of 74 studies comprising 2,007 subjects with Crohn's disease (CD) and 1,085 subjects with ulcerative colitis (UC) were included. The percentage of CD patients misdiagnosed before surgery, including misdiagnosis as appendicitis or UC, was 50.8%±30.9% (578/1,268). The overall postoperative complication rate was 22.3%±13.0% (267/1,501). For studies of UC, the overall postoperative complication rate was 22.2%±27.9% (176/725). In large research centers (n>50 surgical cases), the rates of emergency operations for CD (P=0.032) and in-hospital mortalities resulting from both CD and UC were much lower than those in smaller research centers (n≤50 surgical cases) (P=0.026 and P <0.001, respectively). Regarding the changes in CD and UC surgery over time, postoperative complications (P=0.045 for CD; P=0.020 for UC) and postoperative in-hospital mortality (P=0.0002 for CD; P=0.0160 for UC) both significantly improved after the year 2010. CONCLUSIONS: The surgical management of IBD in China has improved over time. However, the rates of misdiagnosis and postoperative complications over the past two decades have remained high. Large research centers were found to have relatively better capacity for surgical management than the smaller ones. Higher quality prospective studies are needed in China.
Appendicitis
;
Asian Continental Ancestry Group
;
China*
;
Colitis, Ulcerative
;
Crohn Disease
;
Diagnostic Errors
;
Emergencies
;
Hospital Mortality
;
Humans
;
Incidence
;
Inflammatory Bowel Diseases*
;
Outcome Assessment (Health Care)
;
Postoperative Complications
;
Prevalence
;
Prospective Studies
4.Surgical management of inflammatory bowel disease in China: a systematic review of two decades.
Qiao YU ; Ren MAO ; Lei LIAN ; Siew chien NG ; Shenghong ZHANG ; Zhihui CHEN ; Yanyan ZHANG ; Yun QIU ; Baili CHEN ; Yao HE ; Zhirong ZENG ; Shomron BEN-HORIN ; Xinming SONG ; Minhu CHEN
Intestinal Research 2016;14(4):322-332
BACKGROUND/AIMS: The past decades have seen increasing incidence and prevalence of inflammatory bowel disease (IBD) in China. This article aimed to summarize the current status and characteristics of surgical management for IBD in China. METHODS: We searched PubMed, Embase, and Chinese databases from January 1, 1990 to July 1, 2014 for all relevant studies on the surgical treatment IBD in China. Eligible studies with sufficient defined variables were further reviewed for primary and secondary outcome measures. RESULTS: A total of 74 studies comprising 2,007 subjects with Crohn's disease (CD) and 1,085 subjects with ulcerative colitis (UC) were included. The percentage of CD patients misdiagnosed before surgery, including misdiagnosis as appendicitis or UC, was 50.8%±30.9% (578/1,268). The overall postoperative complication rate was 22.3%±13.0% (267/1,501). For studies of UC, the overall postoperative complication rate was 22.2%±27.9% (176/725). In large research centers (n>50 surgical cases), the rates of emergency operations for CD (P=0.032) and in-hospital mortalities resulting from both CD and UC were much lower than those in smaller research centers (n≤50 surgical cases) (P=0.026 and P <0.001, respectively). Regarding the changes in CD and UC surgery over time, postoperative complications (P=0.045 for CD; P=0.020 for UC) and postoperative in-hospital mortality (P=0.0002 for CD; P=0.0160 for UC) both significantly improved after the year 2010. CONCLUSIONS: The surgical management of IBD in China has improved over time. However, the rates of misdiagnosis and postoperative complications over the past two decades have remained high. Large research centers were found to have relatively better capacity for surgical management than the smaller ones. Higher quality prospective studies are needed in China.
Appendicitis
;
Asian Continental Ancestry Group
;
China*
;
Colitis, Ulcerative
;
Crohn Disease
;
Diagnostic Errors
;
Emergencies
;
Hospital Mortality
;
Humans
;
Incidence
;
Inflammatory Bowel Diseases*
;
Outcome Assessment (Health Care)
;
Postoperative Complications
;
Prevalence
;
Prospective Studies
5.A web-based educational intervention module to improve knowledge and attitudes towards thalassaemia prevention in Malaysian young adults
Chin Fang Ngim ; Hishamshah Ibrahim ; Nisah Abdullah ; Nai Ming Lai ; Ronnie Kian Meng Tan ; Chen Siew Ng ; Amutha Ramadas
The Medical Journal of Malaysia 2019;74(3):219-225
Background: Thalassaemia is a public health burden in
Malaysia and its prevention faces many challenges. In this
study, we aimed to assess the effectiveness of a web-based
educational module in improving knowledge and attitudes
about thalassaemia prevention amongst Malaysian young
adults.
Methods: We designed an interactive web-based
educational module in the Malay language wherein videos
were combined with text and pictorial visual cues.
Malaysians aged 18-40 years old who underwent the module
had their knowledge and attitudes assessed at baseline,
post-intervention and at 6-month follow-up using a selfadministered validated questionnaire.
Results: Sixty-five participants: 47 Malays (72.3%), 15
Chinese (23.1%), three Indians (4.6%) underwent the module.
Questionnaires were completed at baseline (n=65), postintervention (n=65) and at 6-month follow-up (n=60). Out of a
total knowledge score of 21, significant changes were
recorded across three time-points- median scores were 12 at
pre-intervention, 19 at post-intervention and 16 at 6-month
follow-up (p<0.001). Post-hoc testing comparing preintervention and 6-month follow-up scores showed
significant retention of knowledge (p<0.001). Compared to
baseline, attitudes at 6-month follow-up showed an
increased acceptance for “marriage avoidance between
carriers” (pre-intervention 20%, 6-month follow-up 48.3%,
p<0.001) and “prenatal diagnosis” (pre-intervention 73.8%,
6-month follow-up 86.2%, p=0.008). Acceptance for selective
termination however, remained low without significant
change (pre-intervention 6.2%, 6-month follow-up 16.7%,
p=0.109).
Conclusion: A web-based educational module appears
effective in improving knowledge and attitudes towards
thalassaemia prevention and its incorporation in
thalassaemia prevention programs is potentially useful in
Malaysia and countries with a high internet penetration rate.
6.Best practices on immunomodulators and biologic agents for ulcerative colitis and Crohn's disease in Asia
Choon Jin OOI ; Ida HILMI ; Rupa BANERJEE ; Sai Wei CHUAH ; Siew Chien NG ; Shu Chen WEI ; Govind K MAKHARIA ; Pises PISESPONGSA ; Min Hu CHEN ; Zhi Hua RAN ; Byong Duk YE ; Dong Il PARK ; Khoon Lin LING ; David ONG ; Vineet AHUJA ; Khean Lee GOH ; Jose SOLLANO ; Wee Chian LIM ; Wai Keung LEUNG ; Raja Affendi Raja ALI ; Deng Chyang WU ; Evan ONG ; Nazri MUSTAFFA ; Julajak LIMSRIVILAI ; Tadakazu HISAMATSU ; Suk Kyun YANG ; Qin OUYANG ; Richard GEARY ; Janaka H DE SILVA ; Rungsun RERKNIMITR ; Marcellus SIMADIBRATA ; Murdani ABDULLAH ; Rupert WL LEONG ;
Intestinal Research 2019;17(3):285-310
The Asia-Pacific Working Group on inflammatory bowel disease (IBD) was established in Cebu, Philippines, under the auspices of the Asian Pacific Association of Gastroenterology with the goal of improving IBD care in Asia. This consensus is carried out in collaboration with Asian Organization for Crohn's and Colitis. With biologic agents and biosimilars becoming more established, it is necessary to conduct a review on existing literature and establish a consensus on when and how to introduce biologic agents and biosimilars in the conjunction with conventional treatments for ulcerative colitis (UC) and Crohn's disease (CD) in Asia. These statements also address how pharmacogenetics influence the treatments of UC and CD and provide guidance on response monitoring and strategies to restore loss of response. Finally, the review includes statements on how to manage treatment alongside possible hepatitis B and tuberculosis infections, both common in Asia. These statements have been prepared and voted upon by members of IBD workgroup employing the modified Delphi process. These statements do not intend to be all-encompassing and future revisions are likely as new data continue to emerge.
Adalimumab
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Asia
;
Asian Continental Ancestry Group
;
Biological Factors
;
Biosimilar Pharmaceuticals
;
Colitis
;
Colitis, Ulcerative
;
Consensus
;
Cooperative Behavior
;
Crohn Disease
;
Gastroenterology
;
Hepatitis B
;
Humans
;
Immunologic Factors
;
Inflammatory Bowel Diseases
;
Infliximab
;
Pharmacogenetics
;
Philippines
;
Practice Guidelines as Topic
;
Tuberculosis
;
Ulcer
7.Survival Analysis and Prognostic Factors for Peri-ocular Malignancies in Malaysia
Dhashani Sivaratnam ; Radzlian Othman ; Navin Kumar Devaraj ; Yap Ming Teck ; Vincent Ng Teng Fung ; Ew Shao Chen ; Ramizah Md Rozi ; Nur Najlaa Baharudin ; Kirbashini Kanasan ; Abdul Hanif Khan Yusof Khan ; Vasudevan Ramachandran ; Siew Moi Ching
Malaysian Journal of Medicine and Health Sciences 2024;20(No.1):60-69
Introduction: This study aims to determine the prognostic factors and survival outcomes of patients that underwent
this surgery. Method: A retrospective review of 43 patients who underwent exenteration for periocular malignancies
over a 14-year period was carried out. Patient demographics, tumour histology, treatment details, surgical margins’
status and post-operative survival were recorded. The survival outcome examined was the overall survival (OS)
rate. Cox regression and Kaplan-Meier analysis were used to evaluate post-exenteration survival. Results: In total,
20 females and 23 males with a median age of 62 ± 17.3 years were identified. The most common indication for
exenteration was basal cell carcinoma (20.9%), followed by squamous cell carcinoma (18.6%), adenocystic carcinoma (14%), malignant melanoma (14%) and sebaceous gland carcinoma (11.6%). The independent predictors for
worse OS on multivariate analysis were Chinese ethnicity (adjusted hazard ratio [aHR] 4.95, p =0.017), sebaceous
gland carcinoma (aHR 57.61 p=0.006), adenocystic carcinoma (aHR 45.87, p=0.008), clear surgical margins (aHR
5.41, p=0.025), receiving only chemotherapy (aHR 169.13, p=0.004), and receiving both adjuvant chemotherapy
and radiotherapy (aHR 41.51, p=0.010). Conclusion: We recommend targeted public health initiatives for Chinese
patients due to their increased mortality risk from peri-ocular malignancies. In addition, we advise comprehensive
adjuvant therapy for all patients regardless of whether a clear surgical margin is achieved. Basal cell carcinoma and
adenocystic carcinoma may also benefit from genetic research. We advocate more training for ophthalmologists to
identify periocular malignancies earlier for better treatment options and increased chances of survival.