1.Combating obesity: a change in perspectives.
George Boon Bee GOH ; Kwang Wei THAM
Singapore medical journal 2023;64(3):153-154
3.Comparisons between non-alcoholic steatohepatitisand alcohol-related hepatocellular carcinoma
Rahul KUMAR ; Boon-Bee George GOH ; Jia-Wen KAM ; Pik-Eu CHANG ; Chee-Kiat TAN
Clinical and Molecular Hepatology 2020;26(2):196-208
Background/Aims:
Non-alcoholic liver disease and alcoholic liver disease begin as simple steatosis that may progress to steatohepatitis and ensuing liver-related complications such as cirrhosis and hepatocellular carcinoma (HCC). We explored differences in characteristics between non-alcoholic steatohepatitis (NASH) and alcoholic steatohepatitisrelated (ASH) HCC.
Methods:
NASH and ASH patients were identified from our department’s prospective HCC database. A total of 54 and 45 patients met predefined inclusion and exclusion criteria for the NASH-HCC and ASH-HCC groups, respectively. Clinical, biochemical and tumor characteristics were studied.
Results:
NASH-HCC patients were older compared to ASH-HCC patients (72±9 vs. 66±9 years, P<0.001) and less male predominant (65% vs. 98%, P<0.001). Prevalence of diabetes mellitus (78% vs. 36%, P<0.001) and hypertension (80% vs. 58%, P<0.001) were significantly higher in the NASH-HCC group. Liver function tests and Child-Pugh scores were similar. There were no differences in alpha-fetoprotein level, lesions found at diagnosis (unifocal/multifocal) or prevalence of portal vein invasion. In both groups, almost half of the patients were in TNM stage 4 at the time of diagnosis and more than 50% of patients were not suitable for any therapy. Median survival in the NASH-HCC and ASH-HCC groups were 13 and 7 months respectively (P=0.113).
Conclusions
Despite significant differences in demography of the NASH-HCC and ASH-HCC groups, liver and tumor characteristics were comparable. Most patients were diagnosed late and were not amenable to curative or locoregional therapies. Better characterization of patients with NASH and ASH at risk of HCC is necessary to optimize screening, surveillance, and management strategies.
4.Managing non-alcoholic fatty liver disease.
Jing Hieng NGU ; George Boon Bee GOH ; Zhongxian POH ; Roy SOETIKNO
Singapore medical journal 2016;57(7):368-371
The prevalence of non-alcoholic fatty liver disease (NAFLD) is increasing rapidly with the obesity and diabetes mellitus epidemics. It is rapidly becoming the most common cause of liver disease worldwide. NAFLD can progress to serious complications such as cirrhosis, hepatocellular carcinoma and death. Therefore, it is important to recognise this condition so that early intervention can be implemented. Lifestyle modifications and strict control of metabolic risk factors are the mainstay of treatment. As disease progression is slow in the majority of NAFLD patients, most can be managed well by primary care physicians. NAFLD patients with advanced liver fibrosis should be referred to specialist care for further assessment.
Carcinoma, Hepatocellular
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pathology
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Diet
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Disease Progression
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Humans
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Life Style
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Liver
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pathology
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Liver Cirrhosis
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pathology
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Liver Neoplasms
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pathology
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Metabolic Syndrome
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complications
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Non-alcoholic Fatty Liver Disease
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diagnosis
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therapy
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Obesity
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complications
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Prevalence
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Risk Factors
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Treatment Outcome
5.Non-alcoholic fatty liver disease screening in type 2 diabetes mellitus: A cost-effectiveness and price threshold analysis.
Bryan Peide CHOO ; George Boon Bee GOH ; Sing Yi CHIA ; Hong Choon OH ; Ngiap Chuan TAN ; Jessica Yi Lyn TAN ; Tiing Leong ANG ; Yong Mong BEE ; Yu Jun WONG
Annals of the Academy of Medicine, Singapore 2022;51(11):686-694
INTRODUCTION:
The cost-effectiveness of screening asymptomatic non-alcoholic fatty liver disease (NAFLD) patients remains debatable, with current studies assuming lifelong benefits of NAFLD screening while neglecting cardiovascular outcomes. This study aims to assess the cost-effectiveness of NAFLD screening among type 2 diabetes mellitus (T2DM) patients, and to establish a price threshold for NAFLD treatment, when it becomes available.
METHOD:
A Markov model was constructed comparing 4 screening strategies (versus no screening) to identify NAFLD with advanced fibrosis among T2DM patients: fibrosis-4 (FIB-4), vibration-controlled transient elastography (VCTE), FIB-4 and VCTE (simultaneous), and FIB-4 and VCTE (sequential). Sensitivity analyses and price threshold analyses were performed to assess parameter uncertainties in the results.
RESULTS:
VCTE was the most cost-effective NAFLD screening strategy (USD24,727/quality-adjusted life year [QALY]), followed by FIB-4 (USD36,800/QALY), when compared to no screening. Probabilistic sensitivity analysis revealed a higher degree of certainty for VCTE as a cost-effective strategy compared to FIB-4 (90.7% versus 73.2%). The duration of expected screening benefit is the most influential variable based on incremental cost-effectiveness ratio tornado analysis. The minimum duration of screening benefit for NAFLD screening to be cost-effective was at least 2.6 years. The annual cost of NAFLD treatment should be less than USD751 for NAFLD screening to be cost-effective.
CONCLUSION
Both VCTE and FIB-4 are cost-effective NAFLD screening strategies among T2DM patients in Singapore. However, given the lack of access to VCTE at primacy care and potential budget constraints, FIB-4 can also be considered for NAFLD screening among T2DM patients in Singapore.
Humans
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Non-alcoholic Fatty Liver Disease/diagnosis*
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Cost-Benefit Analysis
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Diabetes Mellitus, Type 2/diagnosis*
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Research
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Fibrosis
6.The role of PIVKA-II in hepatocellular carcinoma surveillance in an Asian population.
Wai Yoong NG ; Daniel Yan Zheng LIM ; Si Yu TAN ; Jason Pik Eu CHANG ; Thinesh Lee KRISHNAMOORTHY ; Chee Hooi LIM ; Damien Meng Yew TAN ; Victoria Sze Min EKSTROM ; George Boon Bee GOH ; Mark Chang Chuen CHEAH ; Rajneesh KUMAR ; Chin Pin YEO ; Chee Kiat TAN
Annals of the Academy of Medicine, Singapore 2023;52(2):108-110
7.Perception of disease, well-being and financial burden by patients with chronic hepatitis B: A self-reported assessment.
Ruojun DING ; Gayathry MORVIL ; Boon Bee George GOH ; Thinesh Lee KRISHNAMOORTHY ; Pei Yuh CHIA ; Hiang Keat TAN ; Victoria Sze Min EKSTROM ; Chang Chuen Mark CHEAH ; Jin Yang Terence TAN ; Pek Siang Edmund TEO ; Pik Eu Jason CHANG ; Chee Kiat TAN ; Xiaohui XIN ; Wan Cheng CHOW ; Rajneesh KUMAR
Annals of the Academy of Medicine, Singapore 2022;51(6):378-380
8.Impact of fatty liver on long-term outcomes in chronic hepatitis B: a systematic review and matched analysis of individual patient data meta-analysis
Yu Jun WONG ; Vy H. NGUYEN ; Hwai-I YANG ; Jie LI ; Michael Huan LE ; Wan-Jung WU ; Nicole Xinrong HAN ; Khi Yung FONG ; Elizebeth CHEN ; Connie WONG ; Fajuan RUI ; Xiaoming XU ; Qi XUE ; Xin Yu HU ; Wei Qiang LEOW ; George Boon-Bee GOH ; Ramsey CHEUNG ; Grace WONG ; Vincent Wai-Sun WONG ; Ming-Whei YU ; Mindie H. NGUYEN
Clinical and Molecular Hepatology 2023;29(3):705-720
Background/Aims:
Chronic hepatitis B (CHB) and fatty liver (FL) often co-exist, but natural history data of this dual condition (CHB-FL) are sparse. Via a systematic review, conventional meta-analysis (MA) and individual patient-level data MA (IPDMA), we compared liver-related outcomes and mortality between CHB-FL and CHB-no FL patients.
Methods:
We searched 4 databases from inception to December 2021 and pooled study-level estimates using a random- effects model for conventional MA. For IPDMA, we evaluated outcomes after balancing the two study groups with inverse probability treatment weighting (IPTW) on age, sex, cirrhosis, diabetes, ALT, HBeAg, HBV DNA, and antiviral treatment.
Results:
We screened 2,157 articles and included 19 eligible studies (17,955 patients: 11,908 CHB-no FL; 6,047 CHB-FL) in conventional MA, which found severe heterogeneity (I2=88–95%) and no significant differences in HCC, cirrhosis, mortality, or HBsAg seroclearance incidence (P=0.27–0.93). IPDMA included 13,262 patients: 8,625 CHB-no FL and 4,637 CHB-FL patients who differed in several characteristics. The IPTW cohort included 6,955 CHB-no FL and 3,346 CHB-FL well-matched patients. CHB-FL patients (vs. CHB-no FL) had significantly lower HCC, cirrhosis, mortality and higher HBsAg seroclearance incidence (all p≤0.002), with consistent results in subgroups. CHB-FL diagnosed by liver biopsy had a higher 10-year cumulative HCC incidence than CHB-FL diagnosed with non-invasive methods (63.6% vs. 4.3%, p<0.0001).
Conclusions
IPDMA data with well-matched CHB patient groups showed that FL (vs. no FL) was associated with significantly lower HCC, cirrhosis, and mortality risk and higher HBsAg seroclearance probability.