1.Fatal chloroquine poisoning: a rare cause of sudden cardiac arrest.
Colin PHIPPS ; Kenneth CHAN ; Felicia TEO ; R PONAMPALAM
Annals of the Academy of Medicine, Singapore 2011;40(6):296-297
Acute Disease
;
Adult
;
Antimalarials
;
blood
;
poisoning
;
Arrhythmias, Cardiac
;
chemically induced
;
Chloroquine
;
blood
;
poisoning
;
Death, Sudden, Cardiac
;
etiology
;
Drug Overdose
;
complications
;
Fatal Outcome
;
Female
;
Humans
2.What Influences Malaysian Nurses to Participate in Continuing Professional Education Activities?.
Mei Chan CHONG ; Kenneth SELLICK ; Karen FRANCIS ; Khatijah Lim ABDULLAH
Asian Nursing Research 2011;5(1):38-47
PURPOSE: A cross sectional descriptive study, which involved government hospitals and health clinics from Peninsular Malaysia sought to identify the continuing professional education (CPE) needs and their readiness for E-learning. This paper focuses on the first phase of that study that aimed to determine the factors that influence nurses' participation in CPE. METHODS: Multistage cluster sampling was used to recruit 1,000 nurses randomly from 12 hospitals and 24 health clinics from four states in Peninsular Malaysia who agreed to be involved. The respondent rate was 792 (79.2%), of which 562 (80%) had participated in CPE in the last 12 months. RESULTS: Findings suggested that updating knowledge and providing quality care are the most important factors that motivate participation in CPE, with respective means of 4.34 and 4.39. All the mean scores for educational opportunity were less than 3.0. Chi-square tests were used to test the association of demographic data and CPE participation. All demographical data were significantly associated with CPE participation, except marital status. CONCLUSIONS: Implementation of mandatory CPE is considered an important measure to increase nurse's participation in CPE. However, effective planning that takes into consideration the learning needs of nurses is recommended.
Surveys and Questionnaires
;
Education, Continuing
;
Education, Professional
;
Learning
;
Malaysia
3.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
;
Nutrition Therapy
;
methods
;
Refeeding Syndrome
;
diagnosis
;
Superior Mesenteric Artery Syndrome
;
diet therapy
;
Treatment Outcome
4.Expanding the donor pool for liver transplantation in the setting of an "opt-out" scheme: 3 years after new legislation.
Victor T W LEE ; Chan Chung YIP ; Iyer Shridhar GANPATHI ; Stephen CHANG ; Kenneth S W MAK ; K PRABHAKARAN ; Krishnakumar MADHAVAN
Annals of the Academy of Medicine, Singapore 2009;38(4):315-317
INTRODUCTIONThe revised Human Organ Transplant Act (HOTA) was implemented in Singapore in July 2004. We aim to evaluate expanding the potential donor pool for liver transplant in Singapore with the inclusion of marginal donors.
MATERIALS AND METHODSAll donor referrals between July 2004 and June 2007 were studied. All potential deceased liver donors were heart-beating. After being reviewed by the transplant coordinator, potential donors were assessed by a transplant hepatologist and a transplant surgeon for suitability of organ donation strictly based on the programme's donor assessment protocol. Reasons for rejection as potential donors were documented. The clinical characteristics of all donor referrals were retrospectively reviewed, and an independent decision was made as to whether liver retrieval in each rejected case might have been possible.
RESULTSAmong the 128 potential donor referrals, 20 donors (15.6%) underwent liver retrieval. Of the 20 livers retrieved, 16 were implanted and 4 were not implanted (3 unfit recipients, and 1 donor liver with 40% steatosis). Another 10 donor livers were assessed intraoperatively and were rejected because of varying levels of steatosis. Of these livers assessed, 5 donor livers had steatosis <40% and 5 had steatosis >40%. Of the remaining potential donors, 45 were deemed not possible because of prolonged hypotension (9), on-going or unresolved sepsis (13), high-risk behaviour (4), non-actualisation (8), or pre-existing medical conditions (11). Another 53 donors may potentially have been suitable donors but were rejected because of possible sepsis (13), no suitable recipients (12), transient hypotension (10), transient abnormal liver function test (6), history of alcohol ingestion (5), non-actualisation because of consent (4) and other reasons (3). Overall, it was deemed that 61 donors (47.7%) might potentially have been suitable liver donors.
CONCLUSIONSDespite new legislation (HOTA) in Singapore, the utilisation of cadaveric donor livers showed no increase in the last 3 years. By expanding our donor criteria to include marginal donors, we could potentially increase the availability of deceased donor livers to meet our waiting list demands.
Adult ; Female ; Humans ; Liver Transplantation ; Living Donors ; legislation & jurisprudence ; supply & distribution ; Male ; Middle Aged ; Referral and Consultation ; organization & administration ; Retrospective Studies ; Singapore ; Tissue and Organ Procurement ; legislation & jurisprudence ; Waiting Lists
5.Life threatening and occult mediastinal haemorrhage secondary to acquired factor VIII deficiency.
Chieh Suai TAN ; Kenneth P CHAN ; Charles T CHUAH ; Heng Joo NG ; Foong Koon CHEAH ; Felicia S TEO ; Philip C T ENG
Annals of the Academy of Medicine, Singapore 2009;38(3):280-281
Aged
;
Female
;
Hemophilia A
;
complications
;
Hemorrhage
;
etiology
;
Humans
;
Mediastinal Diseases
;
etiology
6.Proximal Interphalangeal Joint Dislocations and Treatment: An Evolutionary Process.
Kenneth Michael JOYCE ; Cormac Weekes JOYCE ; Frank CONROY ; Jeff CHAN ; Emily BUCKLEY ; Sean Michael CARROLL
Archives of Plastic Surgery 2014;41(4):394-397
BACKGROUND: Proximal interphalangeal joint (PIPJ) dislocations represent a significant proportion of hand clinic visits and typically require frequent follow-ups for clinical assessment, orthotic adjustments, and physiotherapy. There are a large number of treatment options available for PIPJ dislocations, yet no prospective or controlled studies have been carried out, largely due to the diversity of the various types of injuries. METHODS: We retrospectively reviewed all the PIPJ dislocations in our institution over a five-year period and directly compared the different splinting techniques that we have used over this time frame. RESULTS: There were a total of 77 dislocations of the PIPJ (57 men and 20 women) that were included in our study. We found that our management has shifted gradually from complete immobilisation to controlled early mobilisation with figure-of-eight splints. Following treatment, the range of motion of the PIPJ in the figure-of-eight group was significantly greater than that in the other three methods (P<0.05) used. There were significantly fewer hospital visits in the figure-of-eight splint group than in the other treatment groups. CONCLUSIONS: The treatment of PIPJ dislocations has undergone a significant evolution in our experience. Early controlled mobilisation has become increasingly important, and therefore, splints have had to be adapted to allow for this. The figure-of-eight splint has yielded excellent results in our experience. It should be considered for all PIPJ dislocations, but careful patient selection is required to achieve optimum results.
Ambulatory Care
;
Dislocations*
;
Finger Joint
;
Follow-Up Studies
;
Hand
;
Humans
;
Joints*
;
Male
;
Patient Selection
;
Range of Motion, Articular
;
Retrospective Studies
;
Splints
7.Combinatorial Antitumor Activity of Oxaliplatin with Epigenetic Modifying Agents, 5-Aza-CdR and FK228, in Human Gastric Cancer Cells.
Jong Kook PARK ; Jung Seon SEO ; Suk Kyeong LEE ; Kenneth K CHAN ; Hyo Jeong KUH
Biomolecules & Therapeutics 2018;26(6):591-598
Epigenetic silencing is considered to be a major mechanism for loss of activity in tumor suppressors. Reversal of epigenetic silencing by using inhibitors of DNA methyltransferase (DNMT) or histone deacetylases (HDACs) such as 5-Aza-CdR and FK228 has shown to enhance cytotoxic activities of several anticancer agents. This study aims to assess the combinatorial effects of gene-silencing reversal agents (5-Aza-CdR and FK228) and oxaliplatin in gastric cancer cells, i.e., Epstein-Barr virus (EBV)-negative SNU-638 and EBV-positive SNU-719 cells. The doublet combinatorial treatment of 5-Aza-CdR and FK228 exhibited synergistic effects in both cell lines, and this was further corroborated by Zta expression induction in SNU-719 cells. Three drug combinations as 5-Aza-CdR/FK228 followed by oxaliplatin, however, resulted in antagonistic effects in both cell lines. Simultaneous treatment with FK228 and oxaliplatin induced synergistic and additive effects in SNU-638 and SNU-719 cells, respectively. Three drug combinations as 5-Aza-CdR prior to FK228/oxaliplatin, however, again resulted in antagonistic effects in both cell lines. This work demonstrated that efficacy of doublet synergistic combination using DNMT or HDACs inhibitors can be compromised by adding the third drug in pre- or post-treatment approach in gastric cancer cells. This implies that the development of clinical trial protocols for triplet combinations using gene-silencing reversal agents should be carefully evaluated in light of their potential antagonistic effects.
Antineoplastic Agents
;
Cell Line
;
DNA
;
Drug Combinations
;
Epigenomics*
;
Herpesvirus 4, Human
;
Histone Deacetylases
;
Humans*
;
Stomach Neoplasms*
;
Triplets
8.Prevalence, Patterns, and Genetic Association Analysis of Modic Vertebral Endplate Changes.
Rishi Mugesh KANNA ; Rajasekaran SHANMUGANATHAN ; Veera Ranjani RAJAGOPALAN ; Senthil NATESAN ; Raveendran MUTHURAJA ; Kenneth Man Chee CHEUNG ; Danny CHAN ; Patrick Yu Ping KAO ; Anita YEE ; Ajoy Prasad SHETTY
Asian Spine Journal 2017;11(4):594-600
STUDY DESIGN: A prospective genetic association study. PURPOSE: The etiology of Modic changes (MCs) is unclear. Recently, the role of genetic factors in the etiology of MCs has been evaluated. However, studies with a larger patient subset are lacking, and candidate genes involved in other disc degeneration phenotypes have not been evaluated. We studied the prevalence of MCs and genetic association of 41 candidate genes in a large Indian cohort. OVERVIEW OF LITERATURE: MCs are vertebral endplate signal changes predominantly observed in the lumbar spine. A significant association between MCs and lumbar disc degeneration and nonspecific low back pain has been described, with the etiopathogenesis implicating various mechanical, infective, and biochemical factors. METHODS: We studied 809 patients using 1.5-T magnetic resonance imaging to determine the prevalence, patterns, distribution, and type of lumbar MCs. Genetic association analysis of 71 single nucleotide polymorphisms (SNPs) of 41 candidate genes was performed based on the presence or absence of MCs. SNPs were genotyped using the Sequenome platform, and an association test was performed using PLINK software. RESULTS: The mean age of the study population (n=809) was 36.7±10.8 years. Based on the presence of MCs, the cohort was divided into 702 controls and 107 cases (prevalence, 13%). MCs were more commonly present in the lower (149/251, 59.4%) than in the upper (102/251, 40.6%) endplates. L4–5 endplates were the most commonly affected levels (30.7%). Type 2 MCs were the most commonly observed pattern (n=206, 82%). The rs2228570 SNP of VDR (p=0.02) and rs17099008 SNP of MMP20 (p=0.03) were significantly associated with MCs. CONCLUSIONS: Genetic polymorphisms of SNPs of VDR and MMP20 were significantly associated with MCs. Understanding the etiopathogenetic mechanisms of MCs is important for planning preventive and therapeutic strategies.
Cohort Studies
;
Genetic Association Studies
;
Humans
;
Intervertebral Disc Degeneration
;
Low Back Pain
;
Magnetic Resonance Imaging
;
Phenotype
;
Polymorphism, Genetic
;
Polymorphism, Single Nucleotide
;
Prevalence*
;
Prospective Studies
;
Spine
10.Prevention of contrast-induced nephropathy by Cordyceps among patients undergoing percutaneous coronary procedures using intravenous contrast.
Marvyn Allen G. CHAN ; Kenneth Wilson O. LIM ; Elizabeth SALAZAR-MONTEMAYOR
Acta Medica Philippina 2018;52(1):4-16
OBJECTIVES: This study aimed to determine the efficacy and safety of Cordyceps in preventing occurrence of contrast-induced nephropathy (CIN) among patients undergoing CA / PCI using IV contrast compared to standard therapy.
METHODS: We searched Medline, Embase, Cochrane database, and Google Scholars for RCTs involving the use of Cordyceps in contrast-induced nephropathy. We used the search keywords "Cordyceps" and "contrast-induced nephropathy" with the Boolean operator "AND" and filtering search results to include only randomized controlled trials and clinical trials. Three trials were found which satisfied all the inclusion criteria and none of the exclusion criteria.
RESULTS: No patient developed clinical renal failure, adverse reactions, or side effects with the Cordyceps arm. CIN occurred in 26 out of 285 patients. The incidence of CIN was less in the Cordyceps group compared to the standard therapy group (p < 0.05, CI 0.20, 1.00).
CONCLUSION: Cordyceps shows a trend towards prevention of CIN and a decrease in biomarkers for acute kidney injury. More studies with larger populations need to be performed to further clarify its preventive effects.
Human ; Acute Kidney Injury ; Cordyceps ; Meta-analysis