Malignant melanoma is a rare malignancy of the external auditory canal. The vast majority of them occur in the areas of the body that are exposed to the sun. Early histological examination may possibly favor better prognosis. We report a case of a 38-year-old female who presented with a small mass in right ear canal, earache and minimum discharge since 4 months. Initially scraping was done in the ENT clinic. Subsequently she had a wide excision done by the end aural approach at a different hospital. A year later the patient presented with a swelling involving the ear canal which extended to the helix and supratemporal region with the histology report as malignant melanoma. A literature review of the disease, radiological findings, immunohistochemical features and treatment options are discussed.
Background: Medical schools have long been concerned with establishing a suitable process of
admission. The criteria used to select students have traditionally focussed on high academic achievement. Method: The International Medical University (IMU) accepts students from a wide range of pre-university entry qualifications for admission into the medical programme. The criteria for the various pre-university entry qualifications used by the IMU were agreed and accepted by the IMU Academic Council (AC), which consist of deans of the IMU’s partner medical schools (PMS). In this study, the various entry qualifications were first grouped into five categories based on the educational pedagogy. Then, this was aligned with the entry qualification data of all students who had been admitted into the IMU medical programme for the period of December 1993 to March 2000. During this period 1,281 students were enrolled into the IMU medical programme. The relationship between the five groups of pre-university entry qualifications and the students’ academic achievement in three end-ofsemester (EOS) examinations namely EOS 1, EOS 3, and EOS 5 were analysed. Results: Students with better grades in their preuniversity examinations showed better performance in their EOS examinations, regardless of the subjects that they took at the pre-university level. Cluster analysis revealed that students who came in with certain preuniversity qualifications generally performed poorly than the more conventional qualifications. However,
after their first year in medical school, there were no significant differences in the clustering of the students. Conclusion: Students with better grades in their preuniversity examinations showed better performance in their EOS examinations, regardless of the science subjects that they took at the pre-university level.
The immune system is the host natural defence against cancer. Cancers are caused by progressive growth of the progeny of a single transformed host cell. The immune system is generally not able to mount immune responses to “self-antigens”, due to various mechanisms of immunological tolerance that are in place. This means that despite possessing a natural defence against tumours, many of the cancer patients may not be able
to mount an effective immune response to fight the tumours. Dendritic cells (DC) are highly specialised in antigen presenting that can initiate and stimulate immune responses. These cells have the ability to stimulate naïve T cell proliferation and perform specific stimulatory and tolerogenic functions respectively. When the DC are activated by antigens, these cells
undergoes further maturation and migrate to secondary lymphoid tissues, present antigen to T cells and finally induce an immune response. The ability of the DC to activate naïve and primed T-lymphocytes makes these cells a good candidate to be explored as a potential immunotherapeutic agent that can modulate antitumour immune responses in the affected host.
The incidence of cancer in Malaysia is rising alarmingly and newly qualified doctors will be expected
to be competent in the basic management of cancer patients. However, the opportunity to gain experience in oncology management will remain limited unless these students are stationed in an oncology unit which is solely dedicated to the treatment of such patients. Therefore, it is essential that undergraduate medical school training equips students with a sound knowledgebase, so that they can confidently manage basic oncological conditions appropriately. With the many private and local medical universities across the country, it is important that oncology training be standardized
and reflective of the local resources available, and government health policies. As a result, having a
standardized curriculum would help create a framework whereby competencies in cancer management would be accurately assessed.
This paper presents the solution to a calculation of the pH of a very dilute solution of a weak acid, taking into account the effect of the hydroxonium ions generated from the ionization of the acid on the ionization of water, also a very weak acid. To be solved successfully, this calculation involves the concepts of conservation of charge, pH, equilibria and the application of the general solution to a cubic equation. Such an exercise requires the application of skills in algebra, and can provide a core of understanding that can prepare advanced students for many different sorts of calculations that represent real-life problems in the chemical sciences. A programme is presented in C++ which enables the work of students to be individualized so that each student in a class can work through a slightly different pH calculation, in such a way that a class supervisor can quickly check each student’s result for accuracy.This exercise is presented as a potential means of enabling students to undertake and master similar types of calculations involving the application of complex algebra to problems related to equilibria and solution dynamics.
A review of current information related to the likely incidences of thyroid diseases in the aged population of Malaysia, raising issues such as the need for further epidemiological studies of iodine intake in relation to thyroid diseases within different geographical regions and population subtypes, the need for general country-wide iodization of salt, and the screening of elderly Malaysians for so-called “occult” thyroid diseases.
Each nursing student comes to nursing with a lay image of nursing portrayed by nurses they have seen. This lay perception of nursing that a nursing student holds is transformed to a more professional understanding that is acquired in nursing schools. This process is known as professional socialization. It is a process of learning the norms, attitudes, behaviours, skills, roles, and values of the profession. It involves the internalization of the values and norms of the profession in the individual’s own behaviour and self-concept. The ultimate goal of professional socialization is to internalize a professional identity of the profession. Professional socialization sets in to reduce the tension from the scenario of reality shock and facilitate adaptation during the transition process. This paper serves as a concept paper with the main purpose of introducing and explaining the concept of professional socialization in nursing to help the readers in gaining further understanding of the concept, especially within the local context. The first author has also incorporated her own personal reflections with regards to her socialization process to nursing.
Oral health diseases are common in all regions of the world and their impact on anatomical
and social functioning is widely acknowledged.Their distributions are unequal between and within countries, with the greatest burden falling on disadvantaged and socially marginalized populations. The risk factors and social determinants for oral diseases have been comprehensively documented, and the evidence base for their prevention is growing. However, decisions on health care are still often made without a solid grounding in research evidence. Translation of research into policy and practice should be a priority for all. Both community and individual interventions need tailoring to achieve a more equal and person-centered preventive focus and reduce any social gradient in health. The major challenges of the future will be to translate knowledge and experiences in oral disease prevention
and health promotion into action programmes.The international oral health research community needs to engage further in research capacity building and in strengthening the work so that research is recognized as the foundation of oral health policy at global level.
Background: The World Health Organization recommends the practice of exclusive breastfeeding of infants for the first 6 months after birth. The objective of present study was to estimate the prevalence and the factors influencing exclusive breastfeeding. The perceptions of mothers about breastfeeding in an urban slum area of Western India were also enquired.
Methods: This cross sectional study was conducted over six months amongst 200 mothers of children in the age group of 6 – 12 months attending the growth and development clinic in one of the urban health centres. Data was collected using a pre-tested, structured questionnaire on breastfeeding practices. Factors related to exclusive breastfeeding were analysed using bivariate and multivariate analysis.
Results: Prevalence of exclusive breastfeeding reported by the participants was 61.5%. Having a male child, maternal age < 30 years, level of education of mother parity, receiving infant feeding advice, initiation of breastfeeding within one hour of birth and administration of colostrum to the baby were associated with exclusive breastfeeding (p
Pharmacogenomics (or pharmacogenetics), the study of the effects of genetic differences on a person’s response to drugs, can help in optimizing drug efficacy and minimizing adverse drug reactions. Interperson difference in drug metabolism is one of the important consequences of such genetic variation. This variation is determined in part by mutations in cytochrome P450 enzymes (CYPs). IMU is part of a major collaborative research project in the area of phamacogenetics and drug metabolism. Working together with USM and UiTM, our group has, since 2000, generated useful population database on genetic polymorphism of various CYP isoforms. We have successfully genotyped three major ethnic groups, Malay, Indian and Chinese for their allelic frequency of important isoforms. These include CYP2D6, CYP2C9, CYP2C8 and CYP2A6. Data generated so far collectively have contributed to our effort in mapping and constructing genomic database for Malaysian population.
Since early 2002, our research has been focusing on developing in vitro methods in studying the functional consequences of genetic polymorphism of CYP enzymes. Using site-directed mutagenesis, CYP mutants, carrying nucleotide changes as reported in known alleles in human populations, were generated and expressed in E. coli system, and the expressed recombinant proteins were characterized using enzyme assays to determine the functional consequences of mutations. We have established a series of HPLC (high performance liquid chromatography)-based and fluorescence-based assays to investigate CYP activities. Assays that have been developed include tolbutamide methylhydroxylase, paclitaxel 6α-hydroxylase, dextromethorphan O-demethylation, testosterone 6β-hydroxylation and coumarin 7-hydroxylase assays. These assays serve as activity markers allowing comparison of catalytic activities of mutant proteins generated. Another focus of our work is to use the developed assays as a screening tool to investigate drug-herb interactions. This was achieved by co-incubation of herbal extracts and active constituents with the probe substrates in the assays followed by characterization of the kinetic behaviors of the enzymes involved using various pharmacokinetic parameters such as Km, Vmax, IC50 and Ki. This work is currently carried out with collaboration from the Institute for Medical Research (IMR) and is supported by MOSTI’s eScienceFund under RM9. It is envisaged that this screening work will give us insights on the potential of the commonly used herbs to cause pharmacokinetic interactions with other drug substrates, and allow us to elucidate the mechanisms involved in the interactions.
The incidence of tuberculosis (TB) is currently increasing. HIV induced immuno-suppression modifies the clinical presentation of TB. Our aim is to determine the differences in clinical presentation of HIV-TB co-infection based on their CD4 counts. This retrospective study looked at cases of adult active TB and HIV-1 co-infection treated in Penang Hospital from January 2004 to December 2005. Of the 820 patients treated for active TB, HIV-1 seropositivity rate was 12.6% (103 patients). Majority of HIV-1 co-infected patients presented with prolonged insidious and non-specific symptoms like weight loss, fever and night sweats. The clinical presentation of TB depended on the stage of HIV-1 infection and associated degree of immunodeficiency. Compared to the less immuno-compromised HIV-1 and TB co-infected population (CD4 > 200/mm3 ), patients with CD4 counts ≤ 200 are more likely to have atypical chest radiographs (P = 0.009). During active TB, the Mantoux test was positive in 12 (14.5%) HIV-1 infected patients with a CD4 counts ≤ 200/mm3 and in 16 (80%) of those with CD4 counts > 200/mm3 (P = 0.0001). In our series, the AFB smear / AFB culture and type of TB did not show obvious correlation with CD4 counts. Therefore to diagnose TB in severely immuno-compromised HIV patients, we need to have a high index of suspicion.
Leiomyosarcoma is a rare cancer and the presence of this type of cancer in the breast is even rarer. Due to its rarity, the management options for leiomyosarcoma of the breast are not well documented. Literature review was done to establish the best treatment options for this type of breast cancer.
Pain and anxiety management is of paramount importance in dentistry especially for child patients. The term “Medicated Oxygen” or “Magic Air” refers to a mixture of nitrous oxide and oxygen gases that is commonly used for partial sedation in pediatric dental populations. The gas is colorless and virtually odorless with a faint, sweet smell. Nitrous oxide sedation is administered by inhalation, absorbed by diffusion through the lungs, and eliminated via respiration. In children, sedation may accelerate the delivery of dental treatment that requires patient serenity and may allow the patient to tolerate unpleasant procedures by reducing anxiety, discomfort, or pain.
A review of the literature indicates that food scientists and health authorities in several countries, especially member countries of the European Union, are still very concerned about the potential health hazards of oxidized products and lipid polymers formed in repeatedly-used deep frying oils. During the frying process at temperatures of 170° – 200°C, steam formed from moisture in the food being fried help volatile products rise to the surface of the frying medium and into the kitchen atmosphere, imparting a mixture of fried-flavours and off-flavours. The non-volatile compounds formed, however, gradually build up in the oil as it is being repeatedly-used for food frying operations. These non-volatiles, primarily “polar compounds” (PC) and to a lesser extent lipid polymers, get absorbed into fried foods and eventually end up in our body system. Available local data suggests that deep-frying oil samples obtained from food hawkers and those produced under simulated deep-frying conditions in the laboratory, are generally safe as they contain PC within safe limits and rarely exceed the upper limit (UL) of 25%. This contrasts with the situation in some European countries where a very high proportion of frying oil samples collected from fast-food restaurants were reported to contain PC exceeding this UL. Appropriately, promotion of Hazard Analysis and Critical Control Points (HACCP) certification and gazetting of food regulations to limit the PC content in frying oils have been introduced in these countries to protect the health of consumers. Meanwhile, simple gadgets/test kits are available commercially to monitor the quality of the frying oil. This would greatly assist kitchen supervisors at restaurants and franchised friedfood outlets to know when best to change a batch of frying oil before the ULs of frying oil quality are breached.
Introduction: Dietary fibre (DF) and fluid intakes
have been reported elsewhere to reduce the risk
of constipation. The association of these dietary
components on Agachand’s Constipation Score (CS)
was investigated in the present study.
Methods: A total of 202 Malaysian participants
comprising 50 adolescents (aged 12.4 ± 5.3 yrs),
50 adults (aged 46.3 ± 11.3 yrs), 52 women of childbearing
age (aged 29.1 ± 9.3 yrs) and 50 elderly persons
(aged 70.0 ± 7.4 yrs) were recruited by convenience
sampling from five venues - two communities in Cheras,
one community in Klang, the IMU campus, Bukit Jalil
and a private secondary school in Klang. All participants
were interviewed with a previously-evaluated food
frequency questionnaire (FFQ) and an Agachand’s
Constipation Score (CS) Questionnaire.
Results: Mean daily DF intakes were low across all
age groups with means ranging from 10.0 – 15.6g.
The percentage of subjects with daily DF intakes below
the “deficient” cut-off of 20g was alarmingly high;
80% in adolescents, 45% in adults, 85% in women of
child-bearing age and 70% in the elderly. About onefifth
or 20% of subjects in all age groups had CS values
≥15 which indicated a problem of constipation.
Mean daily total fluid consumption (TFC) ranged
from 2128 – 5490 ml in the four categories of subjects.
Overall, both daily DF intakes and TFC were negatively
associated with CS values. This inverse association was
significant for DF vs CS scores in adolescents (r = -0.500,
p = 0.001), adults (r = -0.351, p = 0.013), the elderly
(r = -0.392, p = 0.005) and all subjects combined
(r = -0.366, p=0.001). For TFC vs CS scores, the
inverse association was only significant for the elderly
(r = -0.312, p = 0.027) and all subjects combined
(r = -0.245, p = 0.001).
Conclusion: The results of this study support the role
of dietary fibre intake and TFC in reducing the risk of
constipation, as well as reinforcing previous data for low
DF intakes among the Malaysian population.
Background: In Malaysia the percentage of diploma registered nurses outnumber the percentage of degree registered nurses. Internationally, most registered nurses earn associate degrees or bachelor’s degrees in nursing. Malaysia is in the pipeline of ensuring that its registered nurses are professionally qualified with nursing degree by year 2020. Registered nurses with diploma qualification are feeling the pressure to upgrade their qualification to degree. There are concerns as to why these nurses are not pursuing their post registration nursing degree. Objective: To determine factors that are deterring the registered nurses of a private hospital in Penang from pursuing the post registered nursing degree. Methods: This descriptive study utilised a convenient sample of 150 registered nurses from Lam Wah Ee Hospital in Penang. The instrument of this study was developed based on literature search and the conceptual framework of Force Fields Analysis developed by Kurt Lewin in 1952. Results: The deterring factors for registered nurses not pursuing post registration nursing degree from this hospital were determined through negative mean score, which was valued at less than 2.5. The top 3 deterring factors identified were: high educational cost, with a score of 1.92; financial commitment, with a score of 2.22 and time constraints and high workload, with a score of 2.27. Conclusions: High educational cost, financial commitment, time constraint and high workload were the main factors deterring the registered nurses from this hospital from pursuing their post registration nursing degree. Thus it is timely for the organisational management to consider workable measures to assist and motivate their nurses to upgrade themselves with nursing degree in line with Malaysia’s vision to meet the increasing challenges and complex needs in the care of clients in health services.
Abstract: Ampicillin-sulbactam combination is the most frequently prescribed antibiotic in diabetic foot ulcers. We conducted a retrospective study to evaluate the antibiotic sensitivity of bacteria isolated to this antibiotic. In 33 patients with diabetic foot ulcer (September 2008-March 2009), 67% were culture positive in which Citrobacter spp accounted for 36% of these isolates. The rest isolated included Pseudomonas aeruginosa (22%), Proteus spp (18%), Acinetobacter spp (9%), Klebsiella pneumoniae (5%), Escherichia coli (5%) and Staphylococcus aureus (5%). These isolates were more likely to be ampicillin-resistant (n=18) than were ampicillin-sensitive isolates (n=4). Ampicillin resistance has raised our concern about current practice of prescribing ampicillin/ sulbactam as monotherapy for majority of our patients with such ulcers.
Objective: To evaluate the factors that contributes to the decision for termination of pregnancy in prenatally diagnosed fetal anomaly cases.
Methods: A retrospective analysis of all cases of prenatally diagnosed fetal anomaly who delivered between 1 January 2007 and 30 June 2009 in two tertiary hospitals in Malaysia.
Results: A total of seventy-two (72) prenatally diagnosed pregnancies with fetal anomalies were identified. Mean maternal age was 29.8 ± 5.5 years and mean parity 1.47 ± 1.8. 70.8% of patients were ethnic Malay, 15.3% Chinese and 12.5% ethnic Indian. 22 (30.6%) fetuses were lethally abnormal. The overall pregnancy termination rate was 29.2%. 50% of pregnancies with lethally abnormal fetuses were terminated compared to 20% of pregnancies with non-lethal abnormality (p
This paper attempts to utilise clinical scenarios where ethical issues are embedded and requires appropriate application of the steps of the framework mentioned. A step by step sequential approach is adopted to illustrate how the ‘ethical decision model ‘can be used to resolve ethical problems to arrive at a reasonable conclusion. The UNESCO ethical method of reasoning is used as the framework for decision making. Physician-educators should be competent to use ethical decision models as well as best available scientific evidence to be able to arrive at the best decision for patient care as well as teach health professional trainees how reasonable treatment decisions can be made within the perimeter of medical law and social justice.
Avoiding the adverse neonatal effects of perinatal asphyxia has been one of the common indications for cesarean deliveries in current obstetric practice. Expeditious delivery is dependent on decision to perform cesarean delivery and time lines achieved. A decision-delivery interval of 30 minutes, a concept initiated by the American College of Obstetricians and Gynecologists has open to debate as controversy reins about neonatal outcome when this time interval is considered in isolation. Time lines alone are probably not the only criteria to be employed, and may contribute to errors in interpretation by professional regulatory bodies and the society at large. Procedures prior to decision making like trial of labour, fetal scalp sampling and readily available resources for instituting emergent cesarean delivery invariably need to be considered. Though decision to delivery time is an integral component of critical conduct intervals in the acutely compromised fetus, a more pragmatic approach needs to be taken considering potential and known logistical and obstetric factors in line with good obstetric practice.