1.Successful nutritional therapy for superior mesenteric artery syndrome.
Dedrick Kok Hong CHAN ; Kenneth Seck Wai MAK ; Yee Lee CHEAH
Singapore medical journal 2012;53(11):e233-6
Superior mesenteric artery (SMA) syndrome is an uncommon cause of duodenal outlet obstruction. Symptoms and signs suggestive of this condition are nonspecific, and a high index of suspicion coupled with appropriate imaging studies are necessary for diagnosis. We present the case of a 70-year-old man who developed SMA syndrome following prolonged hospitalisation for a surgically treated bleeding duodenal ulcer. His SMA syndrome resolved after successful nonoperative management based on accepted guidelines for nutritional therapy, thus avoiding the need for reoperation and its attendant risks in a malnourished patient.
Aged
;
Duodenal Obstruction
;
drug therapy
;
Duodenal Ulcer
;
complications
;
surgery
;
Endoscopy
;
Hospitalization
;
Humans
;
Male
;
Malnutrition
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Nutrition Therapy
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methods
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Refeeding Syndrome
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diagnosis
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Superior Mesenteric Artery Syndrome
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diet therapy
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Treatment Outcome
2.A study on the knowledge, attitudes and practices of Southeast Asian dermatologists in the management of atopic dermatitis.
Yuin-Chew CHAN ; Yong-Kwang TAY ; Titi-Lestari SUGITO ; Siti Aisah BOEDIARDJA ; Duong-Dinh CHAU ; Khac-Vien NGUYEN ; Kim-Chye YEE ; Mardziah ALIAS ; Suraiya HUSSEIN ; Ma Victoria DIZON ; Francisca ROA ; Yiong-Huak CHAN ; Siriwan WANANUKUL ; Preya KULLAVANIJAYA ; Srisupalak SINGALAVANIJA ; Wai-Kwong CHEONG
Annals of the Academy of Medicine, Singapore 2006;35(11):794-803
INTRODUCTIONThis study evaluated the knowledge, attitudes and practices of Southeast Asian dermatologists in the management of atopic dermatitis (AD).
MATERIALS AND METHODSA questionnaire survey of 255 dermatologists in Indonesia, Malaysia, the Philippines, Singapore, Thailand and Vietnam.
RESULTSFamiliarity with diagnostic criteria varied considerably. The usage of moisturisers by the respondents from Vietnam and Indonesia was significantly less frequent than the other countries. Most respondents (91% to 100%) used topical corticosteroids in children with mild-to-moderately severe dermatitis. Some respondents in the Philippines (17% to 19%) and Vietnam (11% to 25%) only used topical corticosteroids for severe disease. For infected eczema, most respondents would prescribe systemic antibiotics for mild-to-moderate infection. A minority in the Philippines (14%) and Vietnam (11%) did so only for severe infection. The top 4 systemic antibiotics prescribed most frequently were: erythromycin, cloxacillin, cephalosporin and amoxicillin/clavulanic acid. In Indonesia, a large proportion of the respondents (47%) prescribed amoxicillin most frequently. The majority of respondents (60% to 100%) prescribed both sedating and non-sedating oral antihistamines. Most respondents used oral corticosteroids to treat severe AD. Some in Malaysia, Singapore and Vietnam used cyclosporin (7% to 58%), azathioprine (5% to 31%) and methotrexate (5% to 14%). With the exception of those in Singapore, the majority of respondents (71% to 97%) did not use phototherapy.
CONCLUSIONFamiliarity with diagnostic criteria, the early and judicious use of moisturisers and topical corticosteroids, as well as the treatment of Staphylococcus aureus superinfection with penicillinase-stable antibiotics should be emphasised in this region.
Anti-Bacterial Agents ; therapeutic use ; Asia, Southeastern ; epidemiology ; Dermatitis, Atopic ; diagnosis ; drug therapy ; epidemiology ; Drug Administration Routes ; Glucocorticoids ; administration & dosage ; therapeutic use ; Health Knowledge, Attitudes, Practice ; Histamine H1 Antagonists ; therapeutic use ; Humans ; Hypnotics and Sedatives ; therapeutic use ; Outcome Assessment (Health Care) ; Population Surveillance ; Severity of Illness Index
3.Molecular basis of von Hippel-Lindau syndrome in Chinese patients.
Wai-Kwan SIU ; Ronald Ching-Wan MA ; Ching-Wan LAM ; Chloe Miu MAK ; Yuet-Ping YUEN ; Fai-Man Ivan LO ; Kin-Wah CHAN ; Siu-Fung LAM ; Siu-Cheung LING ; Sui-Fan TONG ; Wing-Yee SO ; Chun-Chung CHOW ; Mary Hoi-Yin TANG ; Wing-Hung TAM ; Albert Yan-Wo CHAN
Chinese Medical Journal 2011;124(2):237-241
BACKGROUNDVon Hippel-Lindau (VHL) syndrome is an autosomal dominant familial cancer syndrome predisposing the affected individuals to multiple tumours in various organs. The genetic basis of VHL in Southern Chinese is largely unknown. In this study, we characterized the mutation spectrum of VHL in nine unrelated Southern Chinese families.
METHODSNine probands with clinical features of VHL, two symptomatic and eight asymptomatic family members were included in this study. Prenatal diagnosis was performed twice for one proband. Two probands had only isolated bilateral phaeochromocytoma. The VHL gene was screened for mutations by polymerase chain reaction, direct sequencing and multiplex ligation-dependent probe amplification (MLPA).
RESULTSThe nine probands and the two symptomatic family members carried heterozygous germline mutations. Eight different VHL mutations were identified in the nine probands. One splicing mutation, NM_000551.2: c.463+1G > T, was novel. The other seven VHL mutations, c.233A > G [p.Asn78Ser], c.239G > T [p.Ser80Ile], c.319C > G [p.Arg107Gly], c.481C > T [p.Arg161X], c.482G > A [p.Arg161Gln], c.499C > T [p.Arg167Trp] and an exon 2 deletion, had been previously reported. Three asymptomatic family members were positive for the mutation and the other five tested negative. In prenatal diagnosis, the fetuses were positive for the mutation.
CONCLUSIONSGenetic analysis could accurately confirm VHL syndrome in patients with isolated tumours such as sporadic phaeochromocytoma or epididymal papillary cystadenoma. Mutation detection in asymptomatic family members allows regular tumour surveillance and early intervention to improve their prognosis. DNA-based diagnosis can have an important impact on clinical management for VHL families.
Asian Continental Ancestry Group ; DNA Mutational Analysis ; Humans ; Polymerase Chain Reaction ; Sequence Analysis, DNA ; Von Hippel-Lindau Tumor Suppressor Protein ; genetics ; von Hippel-Lindau Disease ; genetics
4.The use of virtual reality-based therapy to augment poststroke upper limb recovery.
Geoffrey S SAMUEL ; Min CHOO ; Wai Yin CHAN ; Stanley KOK ; Yee Sien NG
Singapore medical journal 2015;56(7):e127-30
Stroke remains one of the major causes of disability worldwide. This case report illustrates the complementary use of biomechanical and kinematic in-game markers, in addition to standard clinical outcomes, to comprehensively assess and track a patient's disabilities. A 65-year-old patient was admitted for right-sided weakness and clinically diagnosed with acute ischaemic stroke. She participated in a short trial of standard stroke occupational therapy and physiotherapy with additional daily virtual reality (VR)-based therapy. Outcomes were tracked using kinematic data and conventional clinical assessments. Her Functional Independence Measure score improved from 87 to 113 and Fugl-Meyer motor score improved from 56 to 62, denoting clinically significant improvement. Corresponding kinematic analysis revealed improved hand path ratios and a decrease in velocity peaks. Further research is being undertaken to elucidate the optimal type, timing, setting and duration of VR-based therapy, as well as the use of neuropharmacological adjuncts.
Aged
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Biomechanical Phenomena
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Female
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Humans
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Occupational Therapy
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Physical Therapy Modalities
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Recovery of Function
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Stroke
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therapy
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Stroke Rehabilitation
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methods
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Treatment Outcome
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Upper Extremity
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physiopathology
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Video Games
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Virtual Reality Exposure Therapy
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methods
5.Venous congestion from brachiocephalic vein stenosis mimicking sclerotic vertebral lesions
Nazimah Ab Mumin ; Raja Rizal Raja Aman ; Wai Yee Chan
The Medical Journal of Malaysia 2019;74(3):240-242
In central venous obstruction, vertebral marrow
enhancement (VME) may be seen secondary to collateral
venous flow via the vertebral venous plexus.
1 There are only
sporadic case reports on pseudolesions due to collateral
enhancement mimicking sclerotic osseous metastasis. This
abnormal vertebral enhancement may lead to erroneous
diagnosis of sclerotic metastases or suspicious bone lesion
which affect the management and prognosis. We describe a
case of brachiocephalic vein obstruction-related vertebral
body pseudolesions as identified in contrast-enhanced
computed tomography (CECT) scan
6.U-shaped relationship between urea level and hepatic decompensation in chronic liver diseases
Huapeng LIN ; Grace Lai-Hung WONG ; Xinrong ZHANG ; Terry Cheuk-Fung YIP ; Ken LIU ; Yee Kit TSE ; Vicki Wing-Ki HUI ; Jimmy Che-To LAI ; Henry Lik-Yuen CHAN ; Vincent Wai-Sun WONG
Clinical and Molecular Hepatology 2022;28(1):77-90
Background/Aims:
We aimed to determine the association between blood urea level and incident cirrhosis, hepatic decompensation, and hepatocellular carcinoma in chronic liver disease (CLD) patients.
Methods:
The association between blood urea level and liver fibrosis/liver-related events were evaluated on continuous scale with restricted cubic spline curves based on generalized additive model or Cox proportional hazards models. Then, the above associations were evaluated by urea level within intervals.
Results:
Among 4,282 patients who had undergone liver stiffness measurement (LSM) by transient elastography, baseline urea level had a U-shaped association with LSM and hepatic decompensation development after a median follow-up of 5.5 years. Compared to patients with urea of 3.6–9.9 mmol/L, those with urea ≤3.5 mmol/L (adjusted hazard ratio [aHR], 4.15; 95% confidence interval [CI], 1.68–10.24) and ≥10 mmol/L (aHR, 5.22; 95% CI, 1.86–14.67) had higher risk of hepatic decompensation. Patients with urea ≤3.5 mmol/L also had higher risk of incident cirrhosis (aHR, 3.24; 95% CI, 1.50–6.98). The association between low urea level and incident cirrhosis and hepatic decompensation was consistently observed in subgroups by age, gender, albumin level, and comorbidities. The U-shaped relationship between urea level and LSM was validated in another population screening study (n=917). Likewise, urea ≤3.5 mmol/L was associated with a higher risk of incident cirrhosis in a territory-wide cohort of 12,476 patients with nonalcoholic fatty liver disease at a median follow-up of 9.9 years (aHR, 1.27; 95% CI, 1.03–1.57).
Conclusions
We identified a U-shaped relationship between the urea level and liver fibrosis/incident cirrhosis/hepatic decompensation in patients with CLD.
7.Serum fibrosis index-based risk score predicts hepatocellular carcinoma in untreated patients with chronic hepatitis B
Lilian Yan LIANG ; Hye Won LEE ; Vincent Wai-Sun WONG ; Terry Cheuk-Fung YIP ; Yee-Kit TSE ; Vicki Wing-Ki HUI ; Grace Chung-Yan LUI ; Henry Lik-Yuen CHAN ; Grace Lai-Hung WONG
Clinical and Molecular Hepatology 2021;27(3):499-509
Background/Aims:
Serum fibrosis scores comprised of common laboratory tests have high utility to assess severity of liver fibrosis. We aimed to derive and validate a hepatocellular carcinoma (HCC) risk score based on serum fibrosis scores to predict HCC in treatment-naïve chronic hepatitis B (CHB) patients.
Methods:
Fifteen thousand one hundred eighty-seven treatment-naïve adult CHB patients were identified to form the training cohort in this retrospective study. Individual fibrosis score was included to construct a new HCC prediction score. The score was externally validated in an independent treatment-naïve Korean CHB cohort.
Results:
180/15,187 patients (1.2%) in training cohort and 47/4,286 patients (1.1%) in validation cohort developed HCC during a mean follow-up of 52 and 50 months, respectively. The newly developed HCC risk score, Liang score, is composed of gender, age, hepatitis B virus DNA, fibrosis-4 (FIB-4) index, and ranges from 0 to 22. Area under the time-dependent receiver operating characteristic curve of Liang score was 0.79 (95% confidence interval, 0.70–0.89). A cutoff value of nine provided an extremely high negative predictive value of 99.9% and high sensitivity of 90.0% at 5 years in the validation cohort. Patients with Liang score ≤9 had HCC incidence <0.2% per year in both training and validation cohorts, in whom HCC surveillance might be exempted.
Conclusion
A novel HCC risk score, Liang score, based on FIB-4 index, is applicable and accurate to identify treatment-naïve CHB patients with very low risk of HCC to be exempted from HCC surveillance.
8.Serum fibrosis index-based risk score predicts hepatocellular carcinoma in untreated patients with chronic hepatitis B
Lilian Yan LIANG ; Hye Won LEE ; Vincent Wai-Sun WONG ; Terry Cheuk-Fung YIP ; Yee-Kit TSE ; Vicki Wing-Ki HUI ; Grace Chung-Yan LUI ; Henry Lik-Yuen CHAN ; Grace Lai-Hung WONG
Clinical and Molecular Hepatology 2021;27(3):499-509
Background/Aims:
Serum fibrosis scores comprised of common laboratory tests have high utility to assess severity of liver fibrosis. We aimed to derive and validate a hepatocellular carcinoma (HCC) risk score based on serum fibrosis scores to predict HCC in treatment-naïve chronic hepatitis B (CHB) patients.
Methods:
Fifteen thousand one hundred eighty-seven treatment-naïve adult CHB patients were identified to form the training cohort in this retrospective study. Individual fibrosis score was included to construct a new HCC prediction score. The score was externally validated in an independent treatment-naïve Korean CHB cohort.
Results:
180/15,187 patients (1.2%) in training cohort and 47/4,286 patients (1.1%) in validation cohort developed HCC during a mean follow-up of 52 and 50 months, respectively. The newly developed HCC risk score, Liang score, is composed of gender, age, hepatitis B virus DNA, fibrosis-4 (FIB-4) index, and ranges from 0 to 22. Area under the time-dependent receiver operating characteristic curve of Liang score was 0.79 (95% confidence interval, 0.70–0.89). A cutoff value of nine provided an extremely high negative predictive value of 99.9% and high sensitivity of 90.0% at 5 years in the validation cohort. Patients with Liang score ≤9 had HCC incidence <0.2% per year in both training and validation cohorts, in whom HCC surveillance might be exempted.
Conclusion
A novel HCC risk score, Liang score, based on FIB-4 index, is applicable and accurate to identify treatment-naïve CHB patients with very low risk of HCC to be exempted from HCC surveillance.
9.Health-Related Quality of Life Assessment in Prostate Cancer Patient Undergoing Androgen Deprivation Therapy: Real-World Experience in the READT Study
Jasmine LIM ; Chi-Fai NG ; Yong WEI ; Teng Aik ONG ; Peggy Sau-Kwan CHU ; Wayne Kwun Wai CHAN ; Chao Yuan HUANG ; Kuo-Kang FENG ; Jeremy Yuen-Chun TEOH ; Ning XU ; Jer Wei LOW ; Wei Sien YEOH ; Peter Ka-Fung CHIU ; Chi-Hang YEE ; Steven Chi Ho LEUNG
The World Journal of Men's Health 2024;42(2):449-459
Purpose:
To investigate the effect of androgen deprivation therapy (ADT) on health-related quality of life (HRQOL) in Asian men with all stages of prostate cancer.
Materials and Methods:
READT (real-life evaluation of the effect of ADT in prostate cancer patients in Asia) was a multi-center, prospective observational study involving six sites across four Asian populations. We enrolled eligible prostate cancer patients, who opted for ADT alone or in combination without prior neoadjuvant or adjuvant ADT within 12 months. The EuroQoL-5 dimensions, 5 level scale (EQ-5D-5L) utility index scores and visual analog scale (VAS) were evaluated at baseline, month 6 and month 12.
Results:
A total of 504 patients were recruited into READT between September 2016 and May 2020 with 52.9% diagnosed with metastatic prostate cancer. The EQ-5D-5L was evaluable in 442/504 (87.7%) of patients. Overall baseline EQ-5D-5L utility index score was 0.924 (interquartile range [IQR] 0.876–1.000). We observed a statistically significant difference in baseline EQ-5D-5L utility index score among different populations with a median EQ-5D-5L utility index score of 1 for Taiwan & Hong Kong, 0.897 for China and 0.838 for Malaysia. Similar trend was observed throughout multiple treatment time-points. Stage IV prostate cancer were significantly associated with a lower baseline EQ-5D-5L utility index score compared to stage I–III prostate cancer, producing a median disutility value of -0.080. Participants had a high median VAS (80, IQR 70–90), indicating good overall health on average during ADT initiation.
Conclusions
The study highlights the differences in health state utility index scores among various Asian prostate cancer patients receiving ADT at real-world setting. Our findings will be informative and useful in cost-effectiveness evaluation and policy decision making.
10.Combining levodopa and virtual reality-based therapy for rehabilitation of the upper limb after acute stroke: pilot study Part II.
Geoffrey Sithamparapillai SAMUEL ; Nicodemus Edrick OEY ; Min CHOO ; Han JU ; Wai Yin CHAN ; Stanley KOK ; Yu GE ; Antonius M Van DONGEN ; Yee Sien NG
Singapore medical journal 2017;58(10):610-617
INTRODUCTIONThis study aimed to evaluate the safety and efficacy of a combination of levodopa and virtual reality (VR)-based therapy for the enhancement of upper limb recovery following acute stroke.
METHODSThis was a pilot single-blinded case series of acute stroke patients with upper extremity hemiparesis. Patients were randomised to standard care with concomitant administration of either levodopa alone (control group) or combination therapy consisting of VR-based motivational visuomotor feedback training with levodopa neuromodulation (VR group). Main clinical outcome measures were the Fugl-Meyer Upper Extremity (FM-UE) assessment and Action Research Arm Test (ARAT). Kinematic measurements of affected upper limb movement were evaluated as a secondary measure of improvement.
RESULTSOf 42 patients screened, four patients were enrolled in each of the two groups. Two patients dropped out from the control group during the trial. Patients receiving combination therapy had clinically significant improvements in FM-UE assessment scores of 16.5 points compared to a 3.0-point improvement among control patients. Similarly, ARAT scores of VR group patients improved by 15.3 points compared to a 10.0-point improvement in the control group. Corresponding improvements were noted in kinematic measures, including hand-path ratio, demonstrating that the quality of upper limb movement improved in the VR group.
CONCLUSIONOur results suggest that VR-based therapy and pharmacotherapy may be combined for acute stroke rehabilitation. Bedside acquisition of kinematic measurements allows accurate assessment of the quality of limb movement, offering a sensitive clinical tool for quantifying motor recovery during the rehabilitation process after acute stroke.