Displaying publications 1 - 20 of 123 in total

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  1. Al-Hardan N, Abdullah M, Abdul Aziz A, Ahmad H
    Sains Malaysiana, 2011;40:1123-1127.
    A ZnO gas sensor was successfully prepared by RF sputtering. The maximum sensitivity of the sensor for vinegar test application was at 400oC. The ZnO based sensor showed good sensitivity for vinegar test in the concentration range of 4% to 9%. The work reveals the ability of using ZnO gas sensor to determine the acid concentrations of the vinegars for food requirements.
    Matched MeSH terms: Diagnostic Tests, Routine
  2. Choo SW, Wong YL, Beh CY, Lokanathan N, Leong ML, Ong CS, et al.
    Genome Announc, 2013 Jan;1(1).
    PMID: 23405341 DOI: 10.1128/genomeA.00063-12
    Mycobacterium abscessus is an emerging clinical pathogen commonly associated with non-tuberculous mycobacterial infections. We report herein the draft genome of M. abscessus strain M156.
    Matched MeSH terms: Diagnostic Tests, Routine
  3. Issa R, Seradja VH, Abdullah MK, Abdul H
    Genome Announc, 2016;4(3).
    PMID: 27340053 DOI: 10.1128/genomeA.00513-16
    This is a report of an annotated genome sequence of Mycobacterium tuberculosis MTBR1/09. The organism was isolated from a sputum sample from a male patient in Malaysia.
    Matched MeSH terms: Diagnostic Tests, Routine
  4. Issa R, Seradja VH, Abdullah MK
    Genome Announc, 2016;4(3).
    PMID: 27365342 DOI: 10.1128/genomeA.00376-16
    Here, we report of the annotated genome sequence of Mycobacterium tuberculosis MTB221/11. The organism was isolated from the cerebrospinal fluid of a patient in Malaysia.
    Matched MeSH terms: Diagnostic Tests, Routine
  5. Syarifah Haizan Sayed Kamar, Nasruddin Jaafar
    MyJurnal
    Mothers can be trained to screen caries in their children. The aim of this study is to
    assess the validity of mothers’ caries screening of their preschool children. (Copied from article).
    Matched MeSH terms: Diagnostic Tests, Routine
  6. Banneheke H, Fernandopulle R, Gunasekara U, Barua A, Fernando N, Wickremasinghe R
    Trop Biomed, 2015 Jun;32(2):192-7.
    PMID: 26691246
    Wet mount microscopy is the most commonly used diagnostic method for trichomoniasis in clinical diagnostic services all over the world including Sri Lanka due to its availability, simplicity and is relatively inexpensive. However, Trichomonas culture and PCR are the gold standard tests. Unfortunately, neither the culture nor PCR is available for the diagnosis of trichomoniasis in Sri Lanka. Thus, it is important to validate the wet mount microscopy as it is the only available diagnostic test and has not been validated to date in Sri Lanka. The objective was to evaluate the validity and reliability of wet mount microscopy against gold standard Trichomonas culture among clinic based population of reproductive age group women in Western province, Sri Lanka. Women attending hospital and institutional based clinics were enrolled. They were interviewed and high vaginal swabs were taken for laboratory diagnosis by culture and wet mount microscopy. There were 601 participants in the age group of 15-45 years. Wet mount microscopy showed 68% sensitivity, 100% specificity, 100% positive (PPV) and 98% negative predictive values (NPV) (P=0.001, kappa=0.803) respectively against the gold standard culture. The area under the ROC curve was 0.840. Sensitivity of wet mount microscopy is low. However it has high validity and reliability as a specific diagnostic test for trichomoniasis. If it is to be used among women of reproductive age group in Western province, Sri Lanka, a culture method could be adopted as a second test to confirm the negative wet mount for symptomatic patients.
    Matched MeSH terms: Diagnostic Tests, Routine/methods*
  7. Mohamad N, Abd Halim NN, Ahmad R, Baharuddin KA
    Malays J Med Sci, 2009 Apr;16(2):33-7.
    PMID: 22589656 MyJurnal
    Theophylline toxicity is a life-threatening toxidrome that can present to an emergency department. To ascertain an immediate provisional diagnosis in toxicology at the emergency department is very challenging, especially when the patient presents with altered mental status, because the clinical features of several toxidromes overlap. We report a case of survival of undiagnosed theophylline toxicity that required intubation for two days in the intensive care unit. This was the first case to have been reported from our department. Accurate diagnosis of a toxidrome by gaining adequate history and conducting a thorough physical examination and early serum toxicology screening, coupled with good knowledge of toxicology, will lead to better patient outcomes.
    Matched MeSH terms: Diagnostic Tests, Routine
  8. Abdul Rahim FH, Thambiah CS, Samsudin IN, Mohamed Mokhtar N
    Malays J Pathol, 2020 Aug;42(2):297-300.
    PMID: 32860386
    INTRODUCTION: Cystic fibrosis (CF) is a life-limiting autosomal recessive disorder as a result of CF transmembrane conductance regulator gene mutation. It has a wide range of disease severity in patients with the same genotype.

    CASE REPORT: A 5-year-old Malay boy with a history of recurrent pneumonia, presented with productive cough, fever and worsening tachypnoea. Physical examination revealed coarse crepitations, reduced breath sounds and clubbing. Biochemical investigations showed that he had respiratory type 2 failure as a result of bronchiectasis. Sweat conductivity done twice was raised supporting a diagnosis of CF. Other investigations such as bronchoscopy to look for congenital anomaly of the lung, infectious disease screening and tuberculosis, fungal and viral culture and sensitivity were negative. Further cascade screening revealed high sweat conductivity results in his siblings.

    DISCUSSION: Although CF prevalence is low in Malaysia, it is nevertheless an important diagnosis to be recognised as it is associated with increased morbidity.

    Matched MeSH terms: Diagnostic Tests, Routine/methods
  9. Low GKK, Gan SC, Zainal N, Naidu KD, Amin-Nordin S, Khoo CS, et al.
    Pathog Glob Health, 2018 09;112(6):334-341.
    PMID: 30246621 DOI: 10.1080/20477724.2018.1516417
    This study aimed to evaluate vascular endothelial growth factor (VEGF) and pentraxin 3 (PTX-3) as predictive and diagnostic markers in differentiating severe dengue from non-severe dengue. The study was conducted in Ampang Health Clinic, Ampang Hospital and Serdang Hospital. The plasma levels of VEGF and PTX-3 were compared between severe dengue and non-severe dengue by ELISA from the day of presentation until discharged. Multiple logistic regression was used to develop predictive and diagnostic models by incorporating other clinical parameters. The receiver operating characteristics (ROC) analysis was used to assess the accuracy of the biomarkers and the developed models. Eighty-two patients were recruited, 29 with severe dengue and four died. The Area Under the Curve (AUC) was statistically significant in VEGF as diagnostic marker at Day 2 and 3 of illness with sensitivity of 80.00%-100.00% and specificity of 76.47%-80.00%. The predictive model with AUC of 0.84 (p 
    Matched MeSH terms: Diagnostic Tests, Routine/methods*
  10. Umi Nadrah Amran, Nur Nadiah Mohd Rais
    MyJurnal
    In medical imaging practice, the act of removing any clothes from the region of interest is justified as to prevent the presence of artefacts on radiographs. However, by doing so, the ‘aurah’ of the patients, especially for the Muslims, are not observed and can be considered as violating their privacy if they are not well-informed beforehand. Previous studies have proved that radiographs with the presence of some fabric materials on the region of interest are radiographically acceptable. Therefore, the aims of this study are to tackle the issue of exposing one’s ‘aurah’ for a knee x-ray examination to take place and also to add insufficiency from the previous studies.
    Matched MeSH terms: Diagnostic Tests, Routine
  11. Al-Darraji HA, Abd Razak H, Ng KP, Altice FL, Kamarulzaman A
    PLoS One, 2013;8(9):e73717.
    PMID: 24040038 DOI: 10.1371/journal.pone.0073717
    Delays in tuberculosis (TB) diagnosis, particularly in prisons, is associated with detrimental outcomes. The new GeneXpert MTB/RIF assay (Xpert) offers accurate and rapid diagnosis of active TB, but its performance in improving case detection in high-transmission congregate settings has yet to be evaluated. We assessed the diagnostic accuracy of a single Xpert assay in an intensified case finding survey among HIV-infected prisoners in Malaysia.
    Matched MeSH terms: Diagnostic Tests, Routine/methods*
  12. Mardhiah K, Wan-Arfah N, Naing NN, Abu Hassan MR, Chan HK, Hasan H
    Clinicoecon Outcomes Res, 2021;13:155-162.
    PMID: 33732004 DOI: 10.2147/CEOR.S286283
    Purpose: This study was conducted to determine the direct medical cost of treating melioidosis patients. The calculation was made according to the variables extracted from medical records.

    Materials and Methods: Data collection was performed retrospectively on a total of 293 cases from Hospital Sultanah Bahiyah, Kedah, Malaysia. The data consisted of personal information, treatment history, and investigation findings, including blood results, USG abdomen results, and CT scan results. The site of culture and sensitivity were also obtained. The total direct medical cost was based on the antibiotics/treatments received by the patients, diagnostic test and investigations performed. The trend analysis used to see the pattern of costs from 2014 to 2017. All the costs were compared based on patients' status and duration of stay at the hospital using the independent t-test.

    Results: The overall mean of direct medical cost for melioidosis amounted to US $233.61 (RM931.33). Overall, the finding confirms a huge reduction (44.7%) of direct medical cost from 2014 to 2017 (P = 0.001). From 2015 to 2016, there was a 19.1% reduction of direct medical cost (P>0.95), followed by a 38.8% reduction in costs from 2016 to 2017 (P = 0.019). In the case of the duration of stay, the mean of total direct medical cost among patients with ≥14 duration of stay was higher compared to those with <14 duration of stay (p < 0.001). There was no significant mean difference of direct medical cost between patients who were cured and died.

    Conclusion: Despite the higher mortality of melioidosis cases compared to other infectious diseases, there is a limitation in the amount of published data on the management cost of melioidosis. The importance of cost in managing this disease should be underlined to perform a fully prepared management toward the disease.

    Matched MeSH terms: Diagnostic Tests, Routine
  13. Mohd Shahrol, A.W., Mohd Hasni, J., Zaleha, M.I.
    Medicine & Health, 2020;15(2):187-214.
    MyJurnal
    Pengetahuan mengenai pendedahan plumbum (Pb) di kalangan kanak-kanak masih kurang baik di kalangan ibu bapa di Malaysia. Tujuan utama kajian ini adalah untuk menterjemahkan versi Bahasa Inggeris Chicago Lead Knowledge Test (CLKT) yang asal ke dalam Bahasa Melayu (bahasa tempatan) dan disesuaikan dengan latar belakang budaya negara ini. Langkah-langkah terjemahan adalah sistematik dan berdasarkan ‘International Society for Pharmacoeconomics and Outcome Research’ (ISPOR) iaitu persediaan, terjemahan ke depan, perangkuman, terjemahan mundur, penilaian terjemahan mundur, penyelarasan, pembahasan kognitif, penilaian pembahasan kognitif dan semakan akhir, pembacaan pruf, dan laporan akhir. Jumlah item adalah kekal 24, di mana satu item dihapus, satu item disemak semula, dan satu item ditambah ke dalam borang soalan kaji selidik. Keempat-empat tema iaitu pengetahuan umum, pendedahan, pencegahan dan pemakanan dalam soal selidik ini dikekalkan. Skala respon, skema jawapan, dan sistem pemarkahan adalah tetap sama. Sebilangan besar item mempunyai terjemahan langsung ke bahasa Melayu kecuali item 5, 7, 12, 20, dan 22. Purata (+SD) dan julat interkuartil (IQR) untuk skor keseluruhan pengetahuan adalah 9.50 + 2.45 markah dan 5 markah masing-masing. Skor terendah adalah 4 markah dan skor tertinggi ialah 13 markah. Ini merupakan satu-satunya kajian yang menggunakan pendekatan sistematik dan standard dalam terjemahan dan penyesuaian budaya di Malaysia. Terjemahan CLKT dan penyesuaian budaya di Malaysia akan menyumbang kepada penyelidikan semasa yang lain terutamanya mengenai pendedahan Pb di kalangan kanak-kanak.

    Matched MeSH terms: Diagnostic Tests, Routine
  14. Xu S, Xue Y, Guo F, Xu M, Gopinath SCB, Mao X
    3 Biotech, 2020 May;10(5):227.
    PMID: 32373419 DOI: 10.1007/s13205-020-02216-2
    Herein, a rapid and sensitive current-volt measurement was developed for identifying the IS6110 DNA sequence to diagnose Mycobacterium tuberculosis (TB). An aminated capture probe was immobilized on a 1,1'-carbonyldiimidazole-functionalized interdigitated electrode (IDE) silica substrate, and the target sequence was detected by complementation. It was found that all tested concentrations displayed a higher response in current changes than the control, and the limit of detection was 10 fM. The sensitivity ranged from 1 to 10 fM. The control sequences with single-, triple-mismatch and noncomplementary sequences showed great discrimination. This rapid and easy DNA detection method helps to identify M. tuberculosis for early-stage diagnosis of TB.
    Matched MeSH terms: Diagnostic Tests, Routine
  15. Phing SH, Mazhorova A, Shalaby M, Peccianti M, Clerici M, Pasquazi A, et al.
    Sci Rep, 2015;5:8551.
    PMID: 25711343 DOI: 10.1038/srep08551
    Terahertz technologies recently emerged as outstanding candidates for a variety of applications in such sectors as security, biomedical, pharmaceutical, aero spatial, etc. Imaging the terahertz field, however, still remains a challenge, particularly when sub-wavelength resolutions are involved. Here we demonstrate an all-optical technique for the terahertz near-field imaging directly at the source plane. A thin layer (<100 nm-thickness) of photo carriers is induced on the surface of the terahertz generation crystal, which acts as an all-optical, virtual blade for terahertz near-field imaging via a knife-edge technique. Remarkably, and in spite of the fact that the proposed approach does not require any mechanical probe, such as tips or apertures, we are able to demonstrate the imaging of a terahertz source with deeply sub-wavelength features (<30 μm) directly in its emission plane.
    Matched MeSH terms: Diagnostic Tests, Routine
  16. Sakthiswary R, Wong M, Isa ZM, Nor Azmi K
    Clin Ter, 2012;163(3):195-8.
    PMID: 22964690
    Treatment with angiotensin converting enzyme inhibitors (ACEIs) or angiotensin receptor blockers (ARBs) may suppress aldosterone production only in the initial phase of treatment and subsequently lead to a rising level of aldosterone to baseline or higher. This phenomenon is described as aldosterone breakthrough. Apart from serial plasma aldosterone levels, there are no other test to identify this condition. The purpose of this study was to evaluate the role of spot urine potassium as a potential screening test for aldosterone breakthrough.
    Matched MeSH terms: Diagnostic Tests, Routine
  17. Dhillon KS
    Malays Orthop J, 2016 Mar;10(1):61-68.
    PMID: 28435551
    Chronic low back pain is a common, disabling and costly health problem. The treatment of chronic low back is difficult and is often ineffective. For treatment to be effective the cause of the pain has to be established but unfortunately in 80% to 95% of the patients the cause cannot be determined despite the existence of modern imaging techniques. A pathoanatomical diagnosis which fits into a classical disease model where successful treatment can be carried out, can only be made in 5% to 7% of the patients. The back pain in the rest of the patients where no pathoanatomical diagnosis can be made is often labelled, unscientifically, as chronic low back pain. Despite the existence of sophisticated imaging techniques and a plethora of diagnostic test the source of pain in patients with nonspecific back pain cannot be established. There exist no causal relationship between imaging findings of degenerated disc, lumbar facet arthritis, spondylosis, spondylolysis and spondylolisthesis, to the pain in these patients. Surgical treatment of non-specific back pain where no pathoanatomical diagnosis has been established is bound to fail. Therefore the outcome of spinal fusion in these patients can be no better than nonsurgical treatment. Spinal fusion is a major surgery which can be associated with significant morbidity and occasionally with mortality. Yet there is rapid rise in the rates of spinal fusion. There is a growing tension between ethics and conflicts of interest for surgeons. The spine, unfortunately, has been labelled as a profit centre and there are allegations of conflicts of interest in the relationship of doctors with the multi-billion dollar spinal devices industry. The devices industry has a significant influence on not only research publications in peer review journals but also on decisions made by doctors which can have a detrimental effect on the welfare of the patient.
    Matched MeSH terms: Diagnostic Tests, Routine
  18. Marilyn Maluda, Noraziah B. Bakri
    MyJurnal
    Melioidosis an infectious disease caused by gram-negative bacteria, Burkholderia pseudomallei is highly endemic in Malaysia, Thailand, Singapore and parts of northern Australia. The district of Tuaran which is located on the west coast of Sabah had reported an increasing trend of Melioidosis cases where in 2017, a total of 19 cases were reported, more than doubling the number of cases reported the prior year (7 cases).
    Matched MeSH terms: Diagnostic Tests, Routine
  19. Khan AH, Noordin R
    Eur J Clin Microbiol Infect Dis, 2020 Jan;39(1):19-30.
    PMID: 31428897 DOI: 10.1007/s10096-019-03680-2
    Infection by Toxoplasma gondii is prevalent worldwide. The parasite can infect a broad spectrum of vertebrate hosts, but infection of fetuses and immunocompromised patients is of particular concern. Easy-to-perform, robust, and highly sensitive and specific methods to detect Toxoplasma infection are important for the treatment and management of patients. Rapid diagnostic methods that do not sacrifice the accuracy of the assay and give reproducible results in a short time are highly desirable. In this context, rapid diagnostic tests (RDTs), especially with point-of-care (POC) features, are promising diagnostic methods in clinical microbiology laboratories, especially in areas with minimal laboratory facilities. More advanced methods using microfluidics and sensor technology will be the future trend. In this review, we discuss serological and molecular-based rapid diagnostic tests for detecting Toxoplasma infection in humans as well as animals.
    Matched MeSH terms: Diagnostic Tests, Routine
  20. Ogunfowokan O, Ogunfowokan BA, Nwajei AI
    Afr J Prim Health Care Fam Med, 2020 Jun 17;12(1):e1-e8.
    PMID: 32634015 DOI: 10.4102/phcfm.v12i1.2212
    BACKGROUND: Malaria diagnosis using microscopy is currently the gold standard. However, malaria rapid diagnostic tests (mRDTs) were developed to simplify the diagnosis in regions without access to functional microscopy.

    AIM: The objective of this study was to compare the diagnostic accuracy of mRDT CareStatTM with microscopy.

    SETTING: This study was conducted in the paediatric primary care clinic of the Federal Medical Centre, Asaba, Nigeria.

    METHODS: A cross-sectional study for diagnostic accuracy was conducted from May 2016 to October 2016. Ninety-eight participants were involved to obtain a precision of 5%, sensitivity of mRDT CareStatTM of 95% from published work and 95% level of confidence after adjusting for 20% non-response rate or missing data. Consecutive participants were tested using both microscopy and mRDT. The results were analysed using EPI Info Version 7.

    RESULTS: A total of 98 children aged 3-59 months were enrolled. Malaria prevalence was found to be 53% (95% confidence interval [CI] = 46% - 60%), whilst sensitivity and specificity were 29% (95% CI = 20% - 38%) and 89% (95% CI = 83% - 95%), respectively. The positive and negative predictive values were 75% (95% CI = 66.4% - 83.6%) and 53% (95% CI = 46% - 60%), respectively.

    CONCLUSION: Agreement between malaria parasitaemia using microscopy and mRDT positivity increased with increase in the parasite density. The mRDT might be negative when malaria parasite density using microscopy is low.

    Matched MeSH terms: Diagnostic Tests, Routine/methods*
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