Managing TB Or Non-TB Pneumonia – A Continual Call For Vigilance
Author: Li-Cher Loh
Keywords: Pneumonia, clinical practice guidelines, assessment, management.
Citation: IeJSME 2008: 2 (2): 3-4
International e-Journal of Science, Medicine & Education (IeJSME)
International Medical University Malaysia
Author: Li-Cher Loh
Keywords: Pneumonia, clinical practice guidelines, assessment, management.
Citation: IeJSME 2008: 2 (2): 3-4
Author: Cheong Lieng Teng
ABSTRACT
In this review article, the author illustrates the advanced searches for “Malaysian” health and life sciences publications. Examples of searching are made on PubMed, Google Scholar and Scopus. The strengths and weaknesses of these services are compared.
Keywords: Literature search, PubMed, Google Scholar, Scopus, database.
Citation: IeJSME 2008: 2 (2): 5-8
Authors: Jacynta Jayaram, Nai Ming Lai, Kin Wai Foong, Sit Zaleha Mohammad Salleh.
ABSTRACT
Introduction: Pneumonia is the most common diagnosis made in hospitalised children. The Malaysian Clinical Practice Guidelines on pneumonia and respiratory tract infections provides a comprehensive guidance in the local context. We evaluated the documented assessment and management of children diagnosed with pneumonia admitted to the children’s ward, Hospital Batu Pahat against this guideline.
Methods: We performed a retrospective analysis of hospital case notes for children admitted from January to May 2004.
Results: Ninety six case notes were analysed. Most patients (84%) had at least four positive clinical features leading to the diagnosis of pneumonia. 92% met the guideline criteria for admission. Sp02 was performed for 58% on admission, and 58% with reading below 95% received supplemental oxygen. Throughout hospital stay, each patient had an average of four investigations (range: 1 – 12). Among 23 patients who had further investigations, justifications were only recorded in seven patients (30.4%), and changes in management resulted in 23%. The most common antibiotic prescribed was intravenous Penicillin (97 %). In 17 patients who met the guideline classification for severe pneumonia, none received the recommended antibiotic combination. The median time to fever resolution was 22 hours (range 2 – 268), and median hospital stay was 3 days (range 1 – 12).
Conclusions: Although the quality of clinical assessment and antibiotic choices were acceptable, there was a failure to critically evaluate patients according to disease severity and initiate corresponding investigations and managements. Future efforts need to be directed at promoting further guideline adherence and the exercise of critical judgment in patient evaluation.
Keywords: Bronchopneumonia, children, clinical audit, hospitals, district.
Citation: IeJSME 2008: 2 (2): 9-16
Authors: C K Ong, W C Tan, K N Leong, A R Muttalif.
ABSTRACT
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 ² 200 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 ² 200/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.
Keywords: CD4 Counts; HIV-1; HIV-TB Co-infection; Mantoux test; Tuberculosis.
Citation: IeJSME 2008: 2 (2): 17-22
Authors: Joni Bing Fei Teoh, Vikneswary Paniandi, Fadzilah Hamzah H, Mohamed Ali Abdul Khader, Li-Cher Loh.
ABSTRACT
Background: Positron Emission Tomography and Computed Tomography (PET-CT) imaging is shown to influence a decision change in managing non-small cell lung carcinoma (NSCLC). The introduction of such a facility in Malaysia is relatively recent, and its impact from its utility is currently being assessed.
Aim: In a tertiary referral centre possessing the only PET-CT facility in northern Peninsular Malaysia, we evaluated the potential roles of PET-CT in referred patients with non-small cell lung carcinoma.
Methodology: Sixty eligible adult cases with NSCLC, between September 2005 and December 2007, were retrospectively reviewed. Relevant data was collected using standard questionnaire for indications, staging of disease, and outcomes in terms of recurrence and response to prescribed cancer-specific therapy.
Results: The indications for PET-CT were: staging of a newly diagnosed non-small cell lung carcinoma (25.0%); post-operative restaging (21.7%); exclusion of recurrence or metastasis (18.3%); establishing diagnosis of carcinoma (13.3%); assessment of response to treatment (11.7%), and for surveillance (10.0%). The use of PET-CT was shown to induce a change in the staging, compared with non-PET conventional means in 69.2% of patients with newly diagnosed lung carcinoma (upstaged in 55.5%; downstaged in 44.5%) and in 65.0% of patients who underwent cancer-specific treatments (upstaged in 38.5%; downstaged in 61.5%). PET-CT detected recurrence in 62.5% who underwent the imaging to exclude a recurrence or metastasis.
Conclusion: PET-CT has affected the staging of a large proportion of our local Malaysian patients. Like elsewhere, the availability of such a facility is likely to have important influence in overall management of NSCLC in Malaysia.
Keywords: Carcinoma, Non-Small-Cell Lung; Positron emission tomography; Computed tomography; Malaysia.
Citation: IeJSME 2008: 2 (2): 23-26
Authors: Sivalingam Nalliah, Murali Ganesalingam, Ravindran Jegasothy.
ABSTRACT
The simultaneous presence of polycystic ovary syndrome with pelvic endometriosis presents compounded gynecological effects on women with subfertility and pelvic pain as the common symptoms. We describe one such case. The molecular basis for etiology is discussed and the need for individualized treatment is suggested.
Keywords: Polycystic ovary syndrome, pelvic endometriosis, simultaneous presence.
Citation: IeJSME 2008: 2 (2): 27-29
Authors: Cheong Lieng Teng, Kim Kuan Tey, Pek Hong Lim, Shian Feng Cheng, Mohd Safwan Nordin, Ching Mun Ng, Wan Nurzahiah Wan Zakaria, Khung Ying Wong.
ABSTRACT
This is a questionnaire survey of dietary supplement usage among students in the International Medical University. Just over two-fifths of these students reported using dietary supplements daily. This high usage of dietary supplements is in contrast their expressed ambivalence about these products.
Citation: IeJSME 2008: 2 (2): 30-32
Author: Joon-Wah Mak
Keywords: Research, international medical university, investment.
Citation: IeJSME 2008: 2 (Suppl 1): S1
Authors: Chin-Eng Ong, Yan Pan, Kai-Hung Tiong, Beow-Chin Yiap, Eng-Lai Tan, Peter Pook, Joon-Wah Mak.
ABSTRACT
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 6a-hydroxylase, dextromethorphan O-demethylation, testosterone 6b-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.
Keywords: Pharmacogenomics, Pharmacogenetics, Drug Interaction, Drug Therapy, Cytochromes P450.
Citation: IeJSME 2008: 2 (Suppl 1): S6-S10
Authors: Stephen Ambu, Wan-Loy Chu, Joon-Wah Mak, Shew-Fung Wong, Li-Li Chan, Siew-Tung Wong.
ABSTRACT
Malaysia has good environmental laws to protect the outdoor environment and public health. However there are no laws governing indoor air quality (IAQ) and the knowledge among the public about its importance is also lacking. Environmental professionals think it is not a priority and this influences the policy decisions in the country. Therefore there is a need to create awareness by way of research, education and other promotional activities. What is much needed at this time is the establishment of standards for the conduct of risk assessment studies. To establish standards we need reliable data which can be used to develop appropriate guidelines for the purpose of mitigation and adaptation programmes. IAQ can have significant influence on health resulting in drop in productivity and economy of a country. It has been estimated that in the US, building related illnesses (BRI) symptoms have a relationship with decrease (3 to 5%) in work performance in an affected population resulting in an annual loss of US$60 billion in revenue. However, based on efficient management programmes they have also projected that the potential annual savings can be in the region of US$10 to 30 billion. This establishes that fact that good management programmes based on efficient guidelines is of economic value to a country and wellbeing of the population. The IMU has embarked on a research programme to collect the much-needed data for the framing of a good IAQ guideline for Malaysia.
Keywords: Indoor air quality, health.
Citation: IeJSME 2008: 2 (Suppl 1): S11-S18