1.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
2.CPG UPDATE - Practical guide in using insulin degludec/insulin aspart: A multidisciplinary approach in Malaysia
Siew Pheng Chan ; Malik Mumtaz ; Jeyakantha Ratnasingam ; Alexander Tong Boon Tan ; Siang Chin Lim ; Azhari Rosman ; Kok Han Chee ; Soo Kun Lim ; Shiong Shiong Yew ; Barakatun-Nisak Mohd Yusof ; Bik Kui Lau ; Saiful Bahari Kassim ; Mafauzy Mohamed
Malaysian Family Physician 2023;18(All Issues):1-12
Insulin degludec/insulin aspart (IDegAsp) co-formulation provides both basal and mealtime glycaemic control in a single injection. The glucose level-lowering efficacy of IDegAsp is reported to be superior or non-inferior to that of the currently available insulin therapies with a lower rate of overall hypoglycaemia and nocturnal hypoglycaemia. An expert panel from Malaysia aims to provide insights into the utilisation of IDegAsp across a broad range of patients with type 2 diabetes mellitus (i.e. treatment-naïve or insulin-naïve patients or patients receiving treatment intensification from basal-only regimens, premixed insulin and basal–bolus insulin therapy). IDegAsp can be initiated as once-daily dosing for the main meal with the largest carbohydrate content with weekly dose adjustments based on patient response. A lower starting dose is recommended for patients with cardiac or renal comorbidities. Dose intensification with IDegAsp may warrant splitting into twice-daily dosing. IDegAsp twice-daily dosing does not need to be split at a 50:50 ratio but should be adjusted to match the carbohydrate content of meals. The treatment of patients choosing to fast during Ramadan should be switched to IDegAsp early before Ramadan, as a longer duration of titration leads to better glycated haemoglobin level reductions. The pre-Ramadan breakfast/lunch insulin dose can be reduced by 30%–50% and taken during sahur, while the pre-Ramadan dinner dose can be taken without any change during iftar. Education on the main meal concept is important, as carbohydrates are present in almost all meals. Patients should not have a misconception of consuming more carbohydrates while taking IDegAsp.
insulin degludec [Supplementary Concept]
;
Insulin Aspart
;
Glucose
;
Hypoglycaemia
;
Diabetes Mellitus, Type 2
3.The Role of Needle-Based Confocal Laser Endomicroscopy in the Evaluation of Pancreatic Cystic Lesions: A Systematic Review
Yung Ka CHIN ; Clement Chun Ho WU ; Damien Meng Yew TAN
Clinical Endoscopy 2021;54(1):38-47
The prevalence of pancreatic cystic lesions (PCLs) has increased recently due to the increased use of cross-sectional abdominal imaging and the ageing global population. Current diagnostic techniques are inadequate to distinguish between PCLs that require surgery, close surveillance, or expectant management. This has resulted in increased morbidity from both inappropriately aggressive and conservative management strategies. Needle-based confocal laser endomicroscopy (nCLE) has allowed microscopic examination and visual delineation of the surface epithelium of PCLs. Landmark studies in this decade have correlated nCLE and histological findings and identified characteristics differentiating various types of PCLs. Subsequent studies have confirmed the high diagnostic yield of nCLE and its diagnostic utility in PCLs with an equivocal diagnosis. Moreover, nCLE has been shown to improve the diagnostic yield of PCLs. This will help avoid unnecessary pancreatic surgery, which carries significant morbidity and mortality risks. The early detection of high-grade dysplasia in PCLs will provide early surgical treatment and improve outcomes for pancreatic cancer. Despite the high upfront cost of nCLE, the improved diagnostic accuracy and resultant appropriate management have resulted in improved cost effectiveness. Refining the procedure technique and limiting the procedure length have significantly improved the safety of nCLE. A structured training program and device improvements to allow more complete mapping of the pancreatic cyst epithelium will be crucial for the widespread adoption of this promising technology.
4.Adverse reactions and safety profile of the mRNA COVID-19 vaccines among Asian military personnel.
Joshua T C TAN ; Clive TAN ; Jeremy TEOH ; M T WAHAB ; Guan Zhong TAN ; Reon Yew Zhou CHIN ; Anne LEE ; Adeliza MUTALIB ; Poh Lian LIM
Annals of the Academy of Medicine, Singapore 2021;50(11):827-837
INTRODUCTION:
The use of novel mRNA platforms for COVID-19 vaccines raised concern about vaccine safety, especially in Asian populations that made up less than 10% of study populations in the pivotal vaccine trials used for emergency use authorisation. Vaccine safety issues also remain a concern in assessing the clinical risks and benefits of vaccine boosters, particularly in specific age groups or segments of the population. This study describes a vaccination exercise involving Asian military personnel, and the adverse reactions and safety events observed.
METHODS:
Minor adverse reactions, hospitalisations and adverse events of special interest were monitored as part of the organisation's protocol for safety monitoring of COVID-19 vaccinations. All vaccine recipients were invited to complete an online adverse reaction questionnaire. Medical consults at the military's primary healthcare facilities were monitored for vaccine-related presentations. All hospitalisations involving vaccine recipients were analysed. Adverse reaction rates between doses, vaccines and age groups were compared.
RESULTS:
A total of 127,081 mRNA vaccine doses were administered to 64,661 individuals up to 24 July 2021. Common minor adverse reactions included fever/chills, body aches and injection site pain. These were more common after dose 2. Younger individuals experienced minor adverse reactions more frequently. Rare cases of anaphylaxis, Bell's palsy and myocarditis/pericarditis were observed. No deaths occurred.
CONCLUSION
Minor adverse reactions were less common than reported in other studies, and rates of anaphylaxis, Bell's palsy and myocarditis/pericarditis were comparable. Our study supports the favourable safety profile of mRNA COVID-19 vaccines, which may help guide decisions about booster doses if required.
COVID-19
;
COVID-19 Vaccines
;
Humans
;
Military Personnel
;
RNA, Messenger
;
SARS-CoV-2
;
Vaccines, Synthetic
5.Cerebral venous sinus thrombosis: review of cases in a single centre in Malaysia
Sim Sze Kiat ; Tan Yew Chin ; Abdul Rahman Izaini Ghani
The Medical Journal of Malaysia 2020;75(1):38-42
Introduction: Cerebral venous sinus thrombosis (CVST) is a
potentially fatal neurological condition. However, due to the
non-specific clinical and radiological features of CVST, it can
sometimes result in a delay in the diagnosis and subsequent
management. The aim of this study was to evaluate the
demography, risk factors and one-year outcome of CVST
patients treated in Hospital Universiti Sains Malaysia.
Methods: In this retrospective study, we reviewed the cases
diagnosed with CVST admitted to our centre from January
2011 until November 2015.
Results: A total of 15 patients were included in this review.
The patterns of imaging findings as well as risk factors for
CVST is discussed with a review of the literature and current
management practices. One year followed-up showed full
recovery (Glasgow Outcome Scale (GOS) of 5) in 10 cases
(66.7%), whereas 4 cases (26.7%) with GOS of 4 (three cases
with neurological deficits, and 1 case with mild symptom.
There was one case of mortality in this study secondary to
sepsis during hospitalisation. The presenting symptoms
were mainly headache, focal neurology deficits, seizure and
altered sensorium. Risk factors identified were oral
contraceptive pills usage, chronic sinuses or ear infections,
and obesity. Initial computed tomography (CT) scan showed
various findings and haemorrhagic infarct was one of the
common findings. Magnetic resonance imaging (MRI) and
magnetic resonance venography (MRV) revealed majority of
the patients had occlusion at two or more venous sinus
sites. No patients had new or recurrent intracranial
haemorrhage following initiation of anticoagulation therapy.
Conclusion: Thus it is considerable safe to start
anticoagulation therapy in CVST patients including those
with intracranial haemorrhage. We propose further
neuroimaging to avoid missed diagnosis of CVST in patient
presented with recent onset headache and CT evidence of
unusual cerebral infarction.
7.SCOPING REVIEW: POTENTIAL WOUND HEALING EFFECT OF EUPHORBIA HIRTA (ARA TANAH) BASED ON IN VIVO MODELS
Terence Yew Chin Tan ; Norliyana Mohamed Yusoff ; Raja Nazatul Izni Raja Shahriman Shah ; Norman Dhamendran David ; Bee Ping Teh
Journal of University of Malaya Medical Centre 2020;23(2):92-98
Wound management is important as it helps to promote healing without microbial infection. Euphorbia hirta, a species of Euphorbiaceae family, also known as Ara tanah among Malaysians, is traditionally used to promote wound healing where its poultice is applied to the sores on the legs, bruises and wounds. Several reported pharmacological properties including antioxidant, antimicrobial, antidiabetic, anti-anaphylactic activities have been reported on this plant. The aim of this review was to evaluate the wound healing effects of E. hirta. Information involving only in vivo studies on wound healing effect of E. hirta was searched using electronic databases. The electronic databases include PubMed, Google Scholar, Ovid, CENTRAL, LILACS, and ClinicalTrials.gov from year 1962 to 2020. A total of five out of 70 studies were included and assessment was made. All included articles studied different wound models in rats. All showed significant wound healing activity with different mechanism of action for incision, excision and dead space wound. Quality assessment of the included studies suggested that experimental animal study design can be improved. It can be concluded that E. hirta displayed potential as a wound healing agent in vivo studies although further research on structureactivity relationship of compounds responsible for the wound healing effect and toxicological studies before it can proceed to clinical studies.
Euphorbia
;
Wounds and Injuries
;
Wound Healing
;
8.Atypical Presentation of Cutaneous Larva Migrans: A Case Report & Literature Review
Kean Pan ONG ; Wooi Chiang TAN ; Yew Thong CHONG ; Yek Huan KHOR ; Lee Chin CHAN
Malaysian Journal of Dermatology 2017;39(Dec):56-58
Cutaneous larva migrans, also known as “migrant linear epidermitis”, “beach worm”, “migranthelminthiasis”, “dermatitis serpiginosus” or “creeping eruption”. It is a zoonosis which caused byaccidental percutaneous inoculation of helminth larvae, usually parasites of the small intestines of catsand dogs. It typically presents as an itchy, erythematous, serpiginous, cutaneous eruption. We describea case of disseminated and extensive infection of cutaneous larva migrans in a 21-year-old traveler,leading a delay in diagnosis and treatment.
9.The Effects of Minocycline on Spinal Root Avulsion Injury in Rat Model
Tan Yew Chin ; Sim Sze Kiat ; Hizal Ghazali Faizul ; Jafri Malin Abdullah
Malaysian Journal of Medical Sciences 2017;24(1):31-39
Background: The neuroprotective role of minocycline in the treatment of brachial plexus
injury is controversial.
Objective: To study the neuroprotective effect of minocycline via different routes in adult
Sprague Dawley rats with brachial plexus injury.
Methods: The C7 nerve roots of the animals were avulsed via an anterior extravertebral
approach. Traction force was used to transect the ventral motor nerve roots at the preganglionic
level. Intraperitoneal and intrathecal minocycline (50 mg/kg for the first week and 25 mg/kg for
the second week) were administered to promote motor healing. The spinal cord was harvested six
weeks after the injury, and structural changes following the avulsion injury and pharmacological
intervention were analysed.
Results: Motor neuron death and microglial proliferation were observed after the
administration of minocycline via two different routes (intraperitoneal and intrathecal)
following traumatic avulsion injury of the ventral nerve root. The administration of
intraperitoneal minocycline reduced the microglia count but increased the motor neuron count.
Intrathecal minocycline also reduced the microglial count, with a greater reduction than in the
intraperitoneal group, but it decreased the motor neuron count.
Conclusions: Intraperitoneal minocycline increased motor neuron survival by inhibiting
microglial proliferation following traumatic avulsion injury of the nerve root. The inhibitory
effect was augmented by the use of intrathecal minocycline, in which the targeted drug delivery
method increased the bioavailability of the therapeutic agent. However, motor neuron survival
was impaired at a higher concentration of minocycline via the intrathecal route due to the more
efficient method of drug delivery. Microglial suppression via minocycline can have both beneficial
and damaging effects, with a moderate dose being beneficial as regards motor neuron survival
but a higher dose proving neurotoxic due to impairment of the glial response and Wallerian
degeneration, which is a pre-requisite for regeneration.
10.Deep Brain Stimulation (DBS) for Movement Disorders: An Experience in Hospital Universiti Sains Malaysia (HUSM) Involving 12 Patients
Lim Liang Hooi ; Diana Noma Fitzrol ; Senthil Kumar Rajapathy ; Tan Yew Chin ; Sanihah Abdul Halim ; Regunath Kandasamy ; BadrisyahIdris ; Abdul Rahman Izaini Ghani ; Zamzuri Idris ; John Tharakan
Malaysian Journal of Medical Sciences 2017;24(2):87-93
Deep brain stimulation (DBS) was first introduced in 1987 to the developed world. As a
developing country Malaysia begun its movement disorder program by doing ablation therapy
using the Radionics system. Hospital Universiti Sains Malaysia a rural based teaching hospital had
to take into consideration both health economics and outcomes in the area that it was providing
neurosurgical care for when it initiated its Deep Brain Stimulation program. Most of the patients
were from the low to medium social economic groups and could not afford payment for a DBS
implant. We concentrated our DBS services to Parkinson's disease, Tourette's Syndrome and
dystonia patients who had exhausted medical therapy. The case series of these patients and their
follow-up are presented in this brief communication.


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