Displaying all 9 publications

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  1. Woon LSC, Zakaria H
    East Asian Arch Psychiatry, 2019 Dec;29(4):118-123.
    PMID: 31871308 DOI: 10.12809/eaap1851
    OBJECTIVE: To determine the prevalence of adult attention deficit hyperactivity disorder (ADHD) and comorbid mental disorders in a Malaysian forensic mental hospital.

    METHODS: All adult patients admitted to the forensic wards who were able to understand Malay or English language and give written informed consent were included. Participants were assessed using the Conners Adult Attention-Deficit Diagnostic Interview for DSM-IV (for presence of adult ADHD and a history of childhood ADHD) and the Mini International Neuropsychiatric Interview (for psychiatric comorbidities). Sociodemographic and offence-related data were also collected.

    RESULTS: Of 199 patients admitted, 120 were included for analysis. The mean age of participants was 36.3 years. 94.2% were men. 81.7% were single, divorced, or separated. 25% had a history of childhood ADHD. The prevalence of adult ADHD was 15.8%. The persistence rate was 63%. Among the 19 participants with adult ADHD, the most common psychiatric comorbidities were substance dependence (68.4%), lifetime depression (63.2%), and generalised anxiety disorder (47.4%). Compared with participants without ADHD, participants with adult ADHD were less likely to be married (0% vs 21.8%, p = 0.022) and more likely to have alcohol abuse (15.8% vs 2%, p = 0.028), lifetime manic/hypomanic episodes (42.1% vs 7.9%, p = 0.001), and generalised anxiety disorder (47.4% vs 19.8%, p = 0.017), and were of younger age at first offence (21.8 years vs 26.9 years, p = 0.021).

    CONCLUSIONS: Adult ADHD is common in a Malaysian forensic mental hospital and is associated with unmarried status, alcohol abuse, lifetime manic/hypomanic episodes, generalised anxiety disorder, and younger age at first offence.

  2. Looi JC, Allison S, Woon L
    Australas Psychiatry, 2023 Oct;31(5):659-661.
    PMID: 37424206 DOI: 10.1177/10398562231188264
    OBJECTIVE: Psychiatric cover for healthcare staffing shortfalls is increasingly common post-pandemic. We aim to provide comprehensive practical advice on providing temporary inpatient or outpatient cover as a psychiatrist, based on the authors' clinical experience and the existing research literature.

    CONCLUSIONS: There is limited peer-reviewed advice available on providing safe and effective temporary psychiatric consultant cover for patient care. We suggest a framework for reviewing the potential hazards and benefits of a temporary post, and planning for the role, guided by consideration of the following: caring for patients, supporting staff, working with peers, and understanding local healthcare systems and the local regulatory environment. Application of this reflective framework is informed by the psychiatrist's assessment of the temporary role, and consideration of the local service conditions.

  3. Kohli S, Al-Haddad A, Siew AY, Nam WL, Hamdan HD, Roslan QA
    Am J Dent, 2021 04;34(2):75-79.
    PMID: 33940663
    PURPOSE: To compare the bleaching efficacy of in-office (Opalescence), professional home (LumiBrite), over the counter (WhiteLight) and natural (strawberry extract) bleaching agents.

    METHODS: 80 teeth were selected and divided into two groups which were stained with black coffee and red wine respectively. The stained specimens were subdivided into four subgroups to be bleached with Opalescence, LumiBrite, WhiteLight and strawberry extract. Color measurements were made using spectrophotometer at baseline level, after staining, after bleaching and 1 week after bleaching. The ΔE₀₀ was calculated post bleaching (ΔE₀₀1), after 1-week follow up (ΔE₀₀2) and color changes between 1-week follow up and baseline (ΔE₀₀3). Data were analyzed by paired t-test and ANOVA with a significant difference of P< 0.05.

    RESULTS: Paired t-test showed significant differences in ΔE₀₀1 and ΔE₀₀2 for both stained specimens (P< 0.001). For black coffee stained specimens, Whitelight had significantly higher ΔE₀₀2 compared to the other bleaching agents (P< 0.05). For red wine stain, Whitelight also showed the significantly lowest ΔE₀₀1 (P< 0.001) and the highest ΔE₀₀2 (P< 0.001) compared to other groups. LumiBrite showed the significantly lowest ΔE₀₀3 for red wine stained specimens (P< 0.05). Whitelight had the poorest bleaching efficacy with deterioration effect after 1-week follow up. Opalescence, LumiBrite and strawberry extract had clinically perceptible and comparable bleaching efficacy. Strawberry extract appeared to be a potential natural bleaching agent with a desirable effect.

    CLINICAL SIGNIFICANCE: Commercial tooth bleaching agents can cause several undesirable side effects such as damage to enamel, hypersensitivity and even affecting the pulp. Strawberry extract is a natural, effective bleaching agent that may have reduced side effects.

  4. Looi JC, Allison S, Woon L, Bastiampillai T
    Australas Psychiatry, 2024 Feb;32(1):55-58.
    PMID: 37903482 DOI: 10.1177/10398562231211129
    OBJECTIVE: There are many burgeoning treatments, and a large range of therapeutic options for 21st century psychiatry. This paper briefly comments upon considerations for balancing treatment to suit the patient, their illness, and their milieu.

    CONCLUSIONS: Therapeutic equipoise, for psychiatric care, is an aspiration rather than a position easily achieved. In day-to-day clinical practice, there will be unexpected demands and barriers that cannot always be accommodated or surmounted. Psychiatrists can work collaboratively with patients, carers, and colleagues in conceptualising and care-planning to avoid extremes of therapeutic hubris and despair, and to adapt evidence-based care more effectively so that it is suited to the patient and their circumstances.

  5. Gupta G, Jia Jia T, Yee Woon L, Kumar Chellappan D, Candasamy M, Dua K
    Adv Pharmacol Sci, 2015;2015:164943.
    PMID: 26681936 DOI: 10.1155/2015/164943
    The present study was designed to evaluate the acute and chronic antidepressant effect of genistein in combination with amitriptyline in mice. Animals were divided into six groups (n = 6) for treatment with water, genistein, or amitriptyline, either alone or in combination for ten days. Animals were subjected to locomotor activity testing; tail suspension test (TST); and forced swim test (FST) and immobility time was recorded on day one and day ten. Acute treatment of all treatment groups did not significantly reduce the immobility time (p > 0.05). Chronic treatment of combination of genistein (10 mg/kg) and amitriptyline (5 mg/kg and 10 mg/kg) significantly reduced the immobility time as compared to control group (p < 0.001) and was comparable to amitriptyline alone (10 mg/kg). However, no changes in anti-immobility activity in combination of subeffective doses of genistein (5 mg/kg) and amitriptyline (5 mg/kg) were observed. Genistein at its standard dose (10 mg/kg) rendered synergistic effects in combination with subeffective dose of amitriptyline (5 mg/kg) and additive effects in combination with therapeutic dose of amitriptyline (10 mg/kg).
  6. Keng SL, Mohd Salleh Sahimi HB, Chan LF, Woon L, Eu CL, Sim SH, et al.
    BMC Psychiatry, 2021 10 04;21(1):486.
    PMID: 34607589 DOI: 10.1186/s12888-021-03500-y
    AIM/BACKGROUND: Even though dialectical behavior therapy (DBT) has received substantial empirical support in treating patients with borderline personality disorder (BPD), fewer studies have evaluated whether a brief DBT skills group may be effective in improving clinical outcomes in this population. Further, less is known regarding the feasibility and outcomes of DBT beyond Euro-American contexts. This paper describes outcomes from a pilot study examining the feasibility, acceptability, and clinical outcomes following completion of a shortened, 14-week DBT skills group in a sample of Muslim-majority BPD patients in Malaysia.

    METHODS: Twenty patients were recruited from a public hospital and attended DBT skills groups in an outpatient clinic. Participants completed measures assessing psychological symptoms, self-harm behaviors, suicidal ideation, emotion regulation difficulties, self-compassion, and well-being pre- and post-intervention.

    RESULTS: There were significant reductions in depressive symptoms, stress, and emotion regulation difficulties, as well as increases in self-compassion and well-being from pre- to post-intervention. A trend was found for decreases in frequency and types of non-suicidal self-harm behaviors, suicidal ideation, and anxiety symptoms. Qualitative content analyses of participants' feedback indicated that the vast majority of participants perceived a positive impact from the skills group, with mindfulness and distress tolerance being rated frequently as skills that were beneficial.

    CONCLUSION: These preliminary findings suggest that DBT skills training is feasible and acceptable in a Muslim-majority, low resource clinical setting, and holds promise in improving clinical outcomes among BPD patients in Malaysia.

  7. Mohamad Muhit AM, Sy-Cherng Woon L, Nik Mhd Nor NS, Sidi H, Mohd Kalok AH, Kampan NC, et al.
    Int J Environ Res Public Health, 2022 Nov 23;19(23).
    PMID: 36497627 DOI: 10.3390/ijerph192315545
    BACKGROUND: Sexual dysfunction is a major issue among gynaecological cancer survivors. This study aimed to evaluate the prevalence of sexual dysfunction among survivors of gynaecological cancer in Malaysia and to determine its risk factors.

    METHODS: A cross-sectional study was conducted of 116 married women with gynaecological cancer who attended the gynaeoncology and oncology clinics at Universiti Kebangsaan Malaysia Medical Centre (UKMMC). Sociodemographic and clinical data were collected. Sexual dysfunction was measured using the Malay Version Female Sexual Function Index (MVFSFI). Univariate and multivariate logistic regression analyses were used to determine the risk factors of female sexual dysfunction.

    RESULTS: The prevalence of sexual dysfunction among gynaecological cancer survivors was 60% (70 out of 116). Sexual dissatisfaction was the most prevalent domain of sexual dysfunction at 68.1%. Sexual dysfunction was significantly associated with low education levels (Primary level, AOR = 4.92, 95% CI: 1.12-21.63; secondary level, AOR = 4.06, 95% CI: 1.14-14.44). Non-Malays were significantly more likely to have sexual dysfunction compared with Malays (AOR = 3.57, 95% CI: 1.16-11.06). In terms of treatment, combinations of surgery and radiotherapy (AOR = 4.66, 95% CI: 1.01-21.47) as well as surgery and chemoradiation (AOR = 5.77, 95% CI: 1.20-27.85) were considered.

    CONCLUSIONS: Gynaecological cancer survivors with lower education levels, non-Malay ethnicity, and receiving treatment combinations of surgery and radiotherapy or surgery and chemoradiation have a higher risk of sexual dysfunction. A holistic approach in managing the various sociocultural and clinical issues is required to prevent sexual dysfunction among these patients.

  8. Franklin F, Rajamanikam A, Phang WK, Raju CS, Gill JS, Francis B, et al.
    Sci Rep, 2024 Jan 03;14(1):385.
    PMID: 38172146 DOI: 10.1038/s41598-023-50299-7
    The aetiology of schizophrenia is multifactorial, and the identification of its risk factors are scarce and highly variable. A cross-sectional study was conducted to investigate the risk factors associated with schizophrenia among Malaysian sub-population. A total of 120 individuals diagnosed with schizophrenia (SZ) and 180 non-schizophrenic (NS) individuals participated in a questionnaire-based survey. Data of complete questionnaire responses obtained from 91 SZ and 120 NS participants were used in statistical analyses. Stool samples were obtained from the participants and screened for gut parasites and fungi using conventional polymerase chain reaction (PCR). The median age were 46 years (interquartile range (IQR) 37 to 60 years) and 35 years (IQR 24 to 47.75 years) for SZ and NS respectively. Multivariable binary logistic regression showed that the factors associated with increased risk of SZ were age, sex, unemployment, presence of other chronic ailment, smoking, and high dairy consumption per week. These factors, except sex, were positively associated with the severity of SZ. Breastfed at infancy as well as vitamin and supplement consumption showed a protective effect against SZ. After data clean-up, fungal or parasitic infections were found in 98% (39/42). of SZ participants and 6.1% (3/49) of NS participants. Our findings identified non-modifiable risk factors (age and sex) and modifiable lifestyle-related risk factors (unemployment, presence of other chronic ailment, smoking, and high dairy consumption per week) associated with SZ and implicate the need for medical attention in preventing fungal and parasitic infections in SZ.
  9. Looi JC, Amos A, Loi S, Bastiampillai T, Reutens S, Woon L, et al.
    Australas Psychiatry, 2024 Apr;32(2):113-117.
    PMID: 38342996 DOI: 10.1177/10398562241232749
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