Displaying publications 61 - 72 of 72 in total

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  1. Zhang MWB, Ho RCM, Ng CG
    Technol Health Care, 2017 Dec 04;25(6):1173-1176.
    PMID: 28946598 DOI: 10.3233/THC-170868
    In psychiatry, mindfulness based intervention has been increasingly popular as a means of psychosocial intervention over the last decade. With the alvanche of technological advances, there has been a myriad of mindfulness based applications. Recent reviews have highlighted how these applications are lacking in functionalities and without demonstrated efficacy. Other reviews have emphasized that there is a need to take into consideration the design of an application, due to placebo effects. It is the aim of this technical note to illustrate how the 5-Minutes Mindfulness application, which is an application designed to provide mindfulness exercises to relieve distress and suffering amongst palliative patients, have been conceptualized. The conceptualized application builds on previous evidence of the efficacy of 5-Minutes Mindfulness demonstrated by pilot and randomized trials. In terms of design, the currently conceptualized application has been designed such that placebo effects could be controlled for.
  2. Tan SB, Ching HC, Chia YL, Yee A, Ng CG, Hasan MSB, et al.
    Am J Hosp Palliat Care, 2020 Aug;37(8):606-612.
    PMID: 31854193 DOI: 10.1177/1049909119894507
    Informal caregivers are at risk of being overwhelmed by various sources of suffering while caring for their significant others. It is, therefore, important for caregivers to take care of themselves. In the self-care context, mindfulness has the potential to reduce caregiver suffering. We studied the effect of a single session of 20-minute mindful breathing on the perceived level of suffering, together with the changes in bispectral index score (BIS) among palliative care informal caregivers. This was a randomized controlled study conducted at the University of Malaya Medical Centre, Malaysia. Forty adult palliative care informal caregivers were recruited and randomly assigned to either 20-minute mindful breathing or 20-minute supportive listening. The changes in perceived suffering and BIS were measured preintervention and postintervention. The reduction in suffering score in the intervention group was significantly more than the control group at minute 20 (U = 124.0, n1 = n2 = 20, mean rank1 = 24.30, mean rank2 = 16.70, z = -2.095, P = .036). The reduction in BIS in the intervention group was also significantly greater than the control group at minute 20 (U = 19.5, n1 = n2 = 20, mean rank1 = 29.52, mean rank2 = 11.48, z = -4.900, P < .0001). Twenty minutes of mindful breathing was more efficacious than 20 minutes of supportive listening in the reduction in suffering among palliative care informal caregivers.
  3. Ng CG, Dijkstra E, Smeets H, Boks MP, de Wit NJ
    Br J Gen Pract, 2013 Jan;63(606):e63-8.
    PMID: 23336475 DOI: 10.3399/bjgp13X660797
    It is unclear whether psychiatric disorders are specifically related to the terminal phase of cancer, or independent of the underlying disease.
  4. Nurasikin MS, Khatijah LA, Aini A, Ramli M, Aida SA, Zainal NZ, et al.
    Int J Soc Psychiatry, 2013 Jun;59(4):332-8.
    PMID: 22408116 DOI: 10.1177/0020764012437127
    Patients having psychiatric diagnoses often experience high level of distress. Religiousness is often used by them as part of their coping mechanism and problem-solving strategies.
  5. Chai YC, Mahadevan R, Ng CG, Chan LF, Md Dai F
    Int J Soc Psychiatry, 2018 09;64(6):578-588.
    PMID: 30074421 DOI: 10.1177/0020764018792585
    BACKGROUND: Depression has been well studied as part of caregiver burden among patients with severe mental illnesses. Curiously, though, there has been little data in terms of caregiver burden with specific focus on depression among caregivers of patients with major depressive disorder (MDD).

    AIM: This study aims to determine the rate of depression among caregivers of person with depression and its psychosocial correlates, which include stigma, perceived social support, religious commitment and the severity of the patient's symptoms.

    METHODS: A cross-sectional study was conducted among 165 patients diagnosed with MDD using the Mini-International Neuropsychiatric Interview (M.I.N.I.) together with their caregivers. Apart from gathering social demographic data, patients were administered the 16-item Quick Inventory of Depressive Symptomatology-Self-Rated Version (QIDS-SR 16), whereas the caregivers were required to answer Patient Health Questionnaire-9 (PHQ-9), Multidimensional Scale of Perceived Social Support (MSPSS), Duke University Religion Index (DUREL) and Depression Stigma Scale (DSS). Those who scored ⩾5 on PHQ-9 were further assessed with interviewer-rated M.I.N.I. to diagnose the presence of depression.

    RESULTS: A total of 47 (28.5%) caregivers were found to have depressive symptoms. Out of that total, 13 (7.9%) were diagnosed to have MDD using M.I.N.I. From univariate analysis, factors associated with depression in caregivers were the severity of symptoms in patients ( p 

  6. Ng CG, Chin SC, Yee AH, Loh HS, Sulaiman AH, Sherianne Sook Kuan W, et al.
    Malays J Med Sci, 2014 May;21(3):62-70.
    PMID: 25246837
    BACKGROUND: The Snaith-Hamilton Pleasure Scale (SHAPS) is a self-assessment scale designed to evaluate anhedonia in various psychiatric disorders. In order to facilitate its use in Malaysian settings, our current study aimed to examine the validity of a Malay-translated version of the SHAPS (SHAPS-M).
    METHODS: In this cross-sectional study, a total of 44 depressed patients and 82 healthy subjects were recruited from a university out-patient clinic. All participants were given both the Malay and English versions of the SHAPS, Fawcett-Clark Pleasure Scale (FCPS), General Health Questionnaire 12 (GHQ-12), and the Beck Depression Inventory (BDI) to assess their hedonic state, general mental health condition and levels of depression.
    RESULTS: The results showed that the SHAPS-M has impressive internal consistency (α = 0.96), concurrent validity and good parallel-form reliability (intraclass coefficient, ICC = 0.65).
    CONCLUSION: In addition to demonstrating good psychometric properties, the SHAPS-M is easy to administer. Therefore, it is a valid, reliable, and suitable questionnaire for assessing anhedonia among depressed patients in Malaysia.
    KEYWORDS: Malaysia; anhedonia; depression; neuroscience; pleasure; psychiatry; psychology; validation
    Study site: Psychiatric clinic, University Malaya Medical Centre (UMMC), Kuala Lumpur, Malaysia
  7. Ng CG
    Med J Malaysia, 2014 Aug;69 Suppl A:42-5.
    PMID: 25417950 MyJurnal
    Depression is a debilitating illness and has become a leading cause of morbidity globally. We aim to summarise the evidence available in regard to the prevalence, type of assessment tools used and treatment options for depression in Malaysia. Two hundred and forty seven articles related to depression were found in a search through a database dedicated to indexing all original data relevant to medicine published in Malaysia between the years 2000-2013. Fifty seven articles were selected and reviewed on the basis of clinical relevance and future research implications. Findings were summarised, categorised and presented according to prevalence of depression, depression in women, depression in clinical condition, assessment tools, and treatment of depression. The prevalence of depression in Malaysia was estimated to be between 8 and 12%. The figures were higher among women of low socio-economic background or those with comorbid medical condition. The common assessment tools used in Malaysia include Beck Depression Inventory (BDI), Depression, Anxiety and Stress Scale (DASS), Patient Health Questionnaire 9 (PHQ-9) and Hospital Anxiety and Depression Scale (HADS). They were translated into the Malay language and their psychometric properties were established. Both pharmacological treatment and psychotherapy were commonly used in Malaysia, and were highly recommended in local clinical practice guidelines. There are discrepancies in the reported rates of depression in Malaysia and this needs to be addressed. There were lack of studies looking into the depression among subgroups in Malaysia especially in the male population. There were several instruments available for assessment of depression in Malaysia but their suitability for the local setting need further research. Both pharmacotherapy and psychotherapy were recommended in the local treatment guideline in Malaysia. With the emergence of generic medication, we need to compare their clinical efficacy and tolerability with original products.
  8. Low PT, Ng CG, Kadir MS, Tang SL
    Med J Malaysia, 2021 09;76(5):617-623.
    PMID: 34508365
    INTRODUCTION: Non-attendance and medication adherence are longstanding concerns in psychiatric outpatient settings. This study aimed to determine effectiveness of reminders using mobile messaging applications (messaging apps) in improving outpatient attendance and medication adherence among patients with depression.

    METHODS: This was a parallel, open-label randomised controlled trial with participants recruited from psychiatric outpatient services of a teaching hospital in Kuala Lumpur and a secondary hospital in Melaka. Adults (≥18 years) diagnosed with major depressive disorder; capable of reading and understanding English or Bahasa Malaysia; prescribed with at least one antidepressant and owns a smart phone were subsequently randomly assigned (1:1) to receive treatment reminders (intervention) or standard treatment without reminders (control), using a computergenerated randomisation programme. The intervention group received two reminder categories: Outpatient appointment reminders (a day before appointment); and medication reminders (weekly basis). Participants were followed-up over two months. We utilised Montgomery- Asberg Depression Rating Scale (MADRS) to measure the severity of depression; and Brief Adherence Rating Scale (BARS) to assess medication adherence. Primary outcomes were outpatient attendance rates and medication adherence assessed at two months. Secondary outcomes included changes in depression severity within each group at two months; comparison of changes in depression severity between both groups; preferences of participants towards treatment reminders, and reasons for non-attendance among participants. This trial was registered with the National Medical Research Registry, NMRR-19-3466-52001.

    RESULTS: Between February and April 2020, 183 participants were randomised to each group, of whom 179 reached study endpoint (91 [98.9%] of 92 in intervention group and 88 [96.7%] of 91 in control group). All recruited participants (n=183) were analysed using intention-to-treat approach. At two months, intervention group has significantly higher outpatient attendance rates (76.8%) than control group (56.4%) (p=0.002), and reported higher medical adherence percentage (mean difference 23.1, [95%CI 0.4, 35.8]; p<0.001). There was also significant difference in the MADRS score change between both groups (mean difference 3.4, [95%CI 0.4, 6.3]; p=0.025). Treatment reminders preferences among participants varied; forgetfulness was the most commonly reported reason (53%) for missing outpatient appointments.

    CONCLUSION: Reminders through mobile messaging applications significantly improved outpatient attendance and medication adherence among patients with depression. Our findings support the use of messaging apps for treatment reminders in psychiatric outpatient settings. However, concerns regarding confidentiality require careful measures to be taken.

  9. Cheng ML, See MH, Sinnadurai S, Islam T, Alip A, Ng CG, et al.
    Breast J, 2020 Mar;26(3):568-570.
    PMID: 31495038 DOI: 10.1111/tbj.13617
  10. Yee A, Loh HS, Hisham Hashim HM, Ng CG
    J Sex Med, 2014 Jan;11(1):22-32.
    PMID: 24344738 DOI: 10.1111/jsm.12352
    INTRODUCTION: For many years, methadone has been recognized as an effective maintenance treatment for opioid dependence. However, of the many adverse events reported, sexual dysfunction is one of the most common side effects.

    AIM: We conducted a meta-analysis to evaluate the prevalence of sexual dysfunction among male patients on methadone and buprenorphine treatments.

    METHODS: Relevant studies published from inception until December 2012 were identified by searching PubMed, OVID, and Embase. Studies were selected using prior defined criteria. Heterogeneity, publication bias, and odds ratio were assessed thoroughly.

    MAIN OUTCOME MEASURES: To examine the prevalence and odds ratio of sexual dysfunctions among the methadone and buprenorphine groups.

    RESULTS: A total of 1,570 participants from 16 eligible studies were identified in this meta-analysis. The studies provided prevalence estimates for sexual dysfunction among methadone users with a meta-analytical pooled prevalence of 52% (95% confidence interval [CI], 0.39-0.65). Only four studies compared sexual dysfunction between the two groups, with a significantly higher combined odds ratio in the methadone group (OR = 4.01, 95% CI, 1.52-10.55, P = 0.0049).

    CONCLUSIONS: Evidence showed that the prevalence of sexual dysfunction was higher among the users of methadone compared with buprenorphine. Patients with sexual difficulty while on methadone treatment were advised to switch to buprenorphine.

  11. Yee A, Loh HS, Danaee M, Riahi S, Ng CG, Sulaiman AH
    J Sex Med, 2018 02;15(2):159-166.
    PMID: 29275046 DOI: 10.1016/j.jsxm.2017.12.004
    BACKGROUND: Methadone has been recognized as an effective maintenance treatment for opioid dependence. However, its use is associated with several complications, including sexual dysfunction in men.

    AIM: To assess plasma testosterone and sexual function in Southeast Asian men on methadone maintenance treatment (MMT) or buprenorphine maintenance treatment (BMT).

    METHODS: 76 sexually active men on MMT (mean age = 43.30 ± 10.32 years) and 31 men on BMT (mean age = 41.87 ± 9.76 years) from a Southeast Asian community were evaluated using plasma total testosterone (TT) and prolactin levels, body mass index, social demographics, substance use measures, and depression severity scale.

    OUTCOMES: Prevalence and associated factors of TT level lower than the reference range in men on MMT or BMT.

    RESULTS: More than 1 third of men (40.8%, n = 31) on MMT had TT levels lower than the reference range, whereas 1 fourth of men (22.6%, n = 7) on BMT did. At univariate analysis, MMT vs BMT (β = 0.298, adjusted R2 = 0.08, P = .02) and body mass index (β = -0.23, adjusted R2 = 0.12, P = .02) were associated with changes in TT after stepwise regression. There were no significant associations with age; Opiate Treatment Index Q scores for alcohol, heroin, stimulant, tobacco, or cannabis use and social functioning domain; education levels; hepatitis C status; and severity of depression. Prolactin level did not differ between the MMT and BMT groups.

    CLINICAL IMPLICATIONS: The sex hormonal assay should be used regularly to check men on MMT.

    STRENGTHS AND LIMITATIONS: This is the first study conducted in the Southeast Asian community. Our study was limited by the lack of a healthy group as the reference for serum levels of testosterone and prolactin.

    CONCLUSIONS: The findings showed that plasma testosterone levels are lower in MMT than in BMT users. Hence, men who are receiving MMT should be screened for hypogonadism routinely in the clinical setting. Yee A, Loh HS, Danaee M, et al. Plasma Testosterone and Sexual Function in Southeast Asian Men Receiving Methadone and Buprenorphine Maintenance Treatment. J Sex Med 2018;15:159-166.

  12. Khosravi Y, Dieye Y, Poh BH, Ng CG, Loke MF, Goh KL, et al.
    ScientificWorldJournal, 2014;2014:610421.
    PMID: 25105162 DOI: 10.1155/2014/610421
    Human stomach is the only known natural habitat of Helicobacter pylori (Hp), a major bacterial pathogen that causes different gastroduodenal diseases. Despite this, the impact of Hp on the diversity and the composition of the gastric microbiota has been poorly studied. In this study, we have analyzed the culturable gastric microbiota of 215 Malaysian patients, including 131 Hp positive and 84 Hp negative individuals that were affected by different gastric diseases. Non-Hp bacteria isolated from biopsy samples were identified by matrix assisted laser desorption ionization-time of flight mass spectrometry based biotyping and 16SrRNA sequencing. The presence of Hp did not significantly modify the diversity of the gastric microbiota. However, correlation was observed between the isolation of Streptococci and peptic ulcer disease. In addition, as a first report, Burkholderia pseudomallei was also isolated from the gastric samples of the local population. This study suggested that there may be geographical variations in the diversity of the human gastric microbiome. Geographically linked diversity in the gastric microbiome and possible interactions between Hp and other bacterial species from stomach microbiota in pathogenesis are proposed for further investigations.
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