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An Alternative Efficient Technique For Thin Tooth Sectioning

International e-Journal of Science, Medicine and Education.2011;5(1):27-30.

Background: The importance of tooth sectioning is realized in disasters such as earthquake, airplane crash investigation, terror, micro leakage studies, age estimation etc. The objective of this study was to develop a simple method to make thin sections (approximately 100 mm) from freshly extracted teeth. Methods: One hundred and twenty human premolars recently extracted for orthodontic purpose were used for this study. The teeth were stored in 0.5% chorlaramine for 2 weeks and were not allowed to dry at any stage of the experiment. The teeth were thoroughly washed in distilled water teeth and then were sectioned buccolingually from crown to the root portion. Results: A detailed embedding-cutting-mounting procedure is described. The prepared thin ground sections were then examined under a Polarised light microscope for the enamel and the dentine, as well as the caries lesions can clearly be distinguished. Conclusion: This is an effective and efficient method for preparation of ground sections in which the hard tissue details are preserved.

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Self-Measured Bed-Time, Arising and Day Blood Pressures of Normotensive Young Male and Female Adults

Nyunt Wai ; Sze Wei Thing ; Ting Ngiik Liing

International e-Journal of Science, Medicine and Education.2011;5(1):31-33.

Morning surge in blood pressure is an independent cardiovascular risk factor in the middleaged and the elderly. Whether such a surge occurs in young subjects is not known. Eighty normotensive subjects (age: 21.8 ± 1.3 yr) measured their own blood pressure (BP) using an automatic device (Omron HEM-7080,) on going to bed and on waking up, for 2 consecutive days. In contrast to large morning BP surges reported for older age groups, there was much smaller but significant (P<0.002) rise only in the DBP (1.9 ± 5 mm Hg) on waking up on day 2 in young subjects. The duration of sleep and the time the subjects slept influence the sleep-wake BP change.

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Successive objective long-case assessment as a driver of clerkship learning – Evaluation through perception questionnaire

Toh Peng Yeow ; Wai Sun Choo ; Amir S Khir ; Li Cher Loh

International e-Journal of Science, Medicine and Education.2011;5(2):3-11.

Background: Clinical clerkship in a busy hospital environment forms an important part of undergraduate medical training. Regular objective assessment of this activity with feedback would be expected to improve outcome. Methods: We implemented fortnightly clinical assessments using modified OSLER (Objective Structured Long Examination Record), and over a 6-week clinical rotation. Modifications included provision of individualized feedback. The assessment process was evaluated by both students and teachers via a questionnaire measuring their perceived educational impact, feasibility and acceptability. Results: Students agreed that the patient spectrum was appropriate and fair, resulting in improved history taking and presentation skills (96.6%), clinical examination skills (89%) and clinical reasoning skills (90.7%). It was graded to have helped learning “tremendously” and “moderately” by 64.7% and 32.8% of students respectively. Perceived improvement was attributable mainly to the repetitive nature of the assessments since only 63% of students were provided with feedback. 96.6% of students and 94.1% of assessors perceived the format created a stressful but positive learning environment. 52.9% of assessors agreed that the exercise consumed significant time and resources but 88.2% rated it as manageable and supported its continuation. Conclusion: Frequent and regular in-course clinical assessments with emphasis on individual feedback is feasible, acceptable and has significant positive educational impact.

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Validation of ICD 10 on congenital anomalies in the state of Penang

Leela Anthony ; Nagarajah Lee ; Stephen Ambu ; Lokman Hakim

International e-Journal of Science, Medicine and Education.2011;5(2):12-17.

Background: Database on hospital records like discharge data, birth and death certificates are widely used for epidemiological and research studies. However there are a very few validation studies on these data. The aim of this study was to validate and assess the accuracy of the ICD 10 database on congenital anomalies in the state of Penang. This study was carried out for three years, from 2002 to 2004. Methods: The list of cases coded under the general coding “Q” was extracted and approximately 30% of cases were randomly selected from the list. Medical records for the selected cases were checked and discrepancies for the diagnoses between the medical records and the ICD 10 data base were recorded for three years. Verification was done for basic demographic variables and the coding of the diseases. Discrepancies, sensitivity and specificity were calculated. Results: The ICD 10 database for congenital anomalies are classified into two types: Type 1 and Type 2. Discrepancies on demographic information were found among the age of patients (babies with congenital anomalies). In Type 1, there was a discrepancy of about 0.02 % to 0.05% probability that a congenital anomaly case can be recorded as non congenital anomaly in the ICD 10. In Type 2 there was a discrepancy that a non-congenital anomaly was classified as congenital anomaly and this ranged from 26.7% to 50.0%. The sensitivity ranged from 96.85% to 97.98%, thus it can be concluded the ICD 10 database is highly sensitive while the specificity ranged from 50.00% to 78.57 %. In other words the ICD 10 is not accurate when classifying the non- congenital anomaly cases. A fair percentage of non-congenital anomaly cases were classified as CA in the ICD 10 database. Conclusion: Even though hospital databases are used as a baseline data for a number of research and epidemiological studies it cannot be used at face value. Validation of these data is necessary before any conclusions can be drawn or intervention measures are undertaken.

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Detection of glycoproteins from human erythrocytes of different ABO blood groups infected with Plasmodium falciparum

Ramon Chin Beng Ong ; Patricia Kim Chooi Lim ; Joon Wah Mak

International e-Journal of Science, Medicine and Education.2011;5(2):18-28.

Background: Many proteins released by cells to the blood and other fluids are glycoproteins. One set of glycoproteins carry the ABO blood group determinants and glycoproteins have been shown to be vital in determining the structure and organization of plasma membranes. There is evidence suggesting their important role in cell-to-cell contact, adhesion, hormone interaction and vital transformation. Differences in proteins and glycoproteins in the different human blood groups may influence the invasion process of Plasmodium falciparum. The objectives of the study were to determine whether there are any changes in proteins and glycoproteins of red blood cells upon infection by P. falciparum and whether these protein and glycoprotein changes differ in the various ABO blood groups. Methods: A Malaysian strain of P. falciparum was cultured in vitro in red blood cells from A, B, O and AB blood groups. Protein and glycoprotein profiles of uninfected and P. falciparum- infected red blood cells from the different human ABO blood groups were analyzed by SDS-PAGE. For protein bands, the gels were stained with Coomassie blue while glycoproteins were visualized following staining of gels using GelCode® Glycoprotein Staining Kit. Results: Cell membranes of P. falciparum infected erythrocytes from different ABO blood groups have different glycoprotein profiles compared to uninfected cells. All the infected samples showed a prominent protein band of molecular weight 99 kDa which was not present in any of the uninfected samples while a 48 kDa band was seen in four out of the seven infected samples. The erythrocyte cell membranes of A and AB blood groups showed different glycoprotein profiles upon infection with P. falciparum when compared to those from blood groups B and O. Conclusion: The two glycoproteins of molecular weights 99 kDa and 48 kDa should be further studied to determine their roles in the pathogenesis of malaria and as potential targets for drug and vaccine development

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Prevalence of Sarcocystis spp. in rodents in Peninsular Malaysia

Stephen Ambu ; Evelyn Yin Synn Yeoh ; Joon Wah Mak ; Srikumar Chakravarthi

International e-Journal of Science, Medicine and Education.2011;5(2):29-38.

The aim of the study was to assess the prevalence of Sarcocystis infection in wild and peri-urban rodents in some states in Peninsular Malaysia. The thigh muscle from these rodents were formalin preserved, sectioned and stained with hematoxylin and eosin and examined under light microscopy. Of the 146 muscle tissue examined only 73 were positive for Sarcocystis infection. Morphological identification showed the presence of some new morphological types to be present. Different species of Sarcocystis were seen in the sections but more extensive studies are needed to identify them to species level.

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Mentoring in the clinical setting: Process, issues and challenges

Sivalingam Nalliah

International e-Journal of Science, Medicine and Education.2012;6(1):4-10.

Abstract: Mentoring in academic medicine requires the trained mentor to commit time, purpose and dedication for the personal and professional development of three categories of protégés or mentees i.e. medical students, the clinician-trainee and the clinical-educator. Conventionally, assigned mentors monitor the progress of the first two categories of personnel as their career pathway is clearly defined. On the other hand the clinician–educator in academic medicine could be a scientist or a career clinician expected to contribute to medical education activities and research. The clinicianeducator has grown in complexity as he multitasks in providing clinical care, assists in delivering the medical curriculum and is expected to do research and publish. Although there is dearth of research in mentoring the clinician-educator, it is clear that mentored clinicaleducators are more productive by way of scientific publications. Trained mentors are expected to identify the needs of the mentee with regards to the level of his career development and his aptitude to move up the academic ladder, successfully nurturing the maturation process. Processes of mentoring in the clinical setting, attributes of the successful mentor and facilitating the mentee in overcoming challenges in academic medicine are discussed.

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Mentorship in the research setting

Joon-Wah Mak

International e-Journal of Science, Medicine and Education.2012;6(1):11-14.

Abstract: The research mentorship programme is unique in that it is a planned journey undertaken by the mentor and mentee, preferably with well-defined milestones along the journey. During the journey, familiar landmarks will be pointed out by the mentor. In path-finding situations the experience and wisdom of the mentor and the critical appraisal of both mentor and mentee will contribute to learning from the encounter. In most mentor-mentee partnerships, a formal acceptance to the relationship, well-defined landmarks measuring progress in the journey, regular appraisal of the skills developed and acquired, and phased, judicious modification in the individual roles of that relationship will be required. Although there is no consensus on the elements of mentorship, there are some strategies which can contribute to the success of the relationship. Critical success factors include convergence of the research area within the broad expertise of the research mentor. The research mentor should have a proven research track record and is committed to serve in that official capacity. The research mentoring process is dynamic and characteristics of both mentor and mentee contribute to the robustness of that relationship. The mentee would have identified some attributes of the mentor that are desirable and is willing to work hard to achieve, build on, and improve upon. In the research setting endpoint measurements of success will be based on recognition of the research standing of the mentee, measurable outcomes such as number of papers in top tier journals, citation indices, etc. consultancies attracted as well as invitations to deliver plenaries in scientific conferences, patents filed and research findings translated and applied, and other measures of research productivity. In the pursuit of research excellence the mentee would have imbibed values of professionalism and ethics in research and would have constantly kept in mind that to be successful, the mentee would be able to excel beyond his mentor and that the next generation of researchers will seek mentorship from him.

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Risk factors of peripheral venous catheterization thrombophlebitis

Wilkinson Yoong Jian Tan ; Jo Wearn Yeap ; Sharifah Sulaiha Syed Aznal

International e-Journal of Science, Medicine and Education.2012;6(1):24-30.

Background: Peripheral venous catheterisation is indispensable in modern practise of medicine. The indications of venous access should be weighed against the risk of complications, the commonest being thrombophlebitis. Thrombophlebitis causes patient discomfort and the need for new catheter insertion and risk of developing further widespread infections. Methodology: This observational study was conducted on adult patients admitted to the surgical and medical ward of a tertiary hospital in Negeri Sembilan Malaysia in 2011. Four researchers visited patients daily and examined for signs of thrombophlebitis; warmth, erythema, swelling, tenderness or a palpable venous cord. Risks factors that were studied in this research were patient/s age and gender, duration of catheterization, use of catheter for infusion, size of catheter, site of catheter insertion and types of infusate. Thrombophlebitis was graded using a scale adapted from Bhandari et al. (1979). Results: In total, 428 patients were recruited with an incidence rate of thrombophlebitis of 35.2%. Among those who developed thrombophlebitis, 65% had mild thrombophlebitis, 19% moderate and 8% severe thrombophlebitis. Results showed that female patients had a significant increased risk of developing thrombophlebitis. Also risk increased significantly with increased duration of catheterization and usage of the catheter for infusion. The age of a patient, types of infusate use, size of catheter and site of catheter insertion did not significantly influence the development of thrombophlebitis. Conclusion: The study showed that risk of developing thrombophlebitis is significantly increased among female patients, and also with increased duration of catheterization and use of the peripheral venous catheter for infusion. We recommended elective replacement of catheter every 72 hours and daily examination of catheters for signs of thrombophlebitis by a healthcare personnel.

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Reflective writing in case summary assignments

Kathiravan Chinniah ; Sivalingam Nalliah

International e-Journal of Science, Medicine and Education.2012;6(1):15-20.

Outcome and competency-based undergraduate and graduate medical education is the desired standard embraced by many medical educationists worldwide. Reflective capacity is an integral component of that strategy and reflective writing has shown tremendous potential as a delivery tool. But there are various challenges in the implementation of the initiative. Efficacy as a delivery tool, achievement of pedagogical outcomes, reliability issues, challenges in assessment outcomes/tools, and whether it can be taught and learnt, need to be addressed. Many questions are still not satisfactorily answered, and this review attempts to offer some perspective on the issues.

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