Displaying publications 41 - 55 of 55 in total

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  1. Yee A, Loh HS, Ng CG, Sulaiman AH
    Am J Mens Health, 2018 07;12(4):1016-1022.
    PMID: 29493379 DOI: 10.1177/1557988318759197
    Low sexual desire (SD) is not life threatening, but its negative impact on the quality of life and intimacy of a relationship among the patients on methadone maintenance therapy (MMT) is significant. This cross-sectional study involved 183 men on MMT who were interviewed and who completed the Malay version of the SDI-2 (SDI-2-BM), the Malay version of the self-rated Montgomery-Asberg Depression Rating Scale (MADRS-BM) and World Health Organization Quality of Life-BREF Scale (WHOQOL-BREF) questionnaires. Findings showed 32.8% ( n = 60) participants had low SD. Those who were older, had sexual partners, and were smokers achieved lower scores in both dyadic SD (≤24) and solitary SD (≤6), and suffered lower quality of life in their social relationship. MMT is very cost-effective in rehabilitating opioid dependence; however, as clinicians, we need to address and manage the issues of low SD and depression among patients on MMT, especially the older men.
    Matched MeSH terms: Methadone/therapeutic use*
  2. Yee A, Danaee M, Loh HS, Sulaiman AH, Ng CG
    PLoS One, 2016;11(1):e0147852.
    PMID: 26820154 DOI: 10.1371/journal.pone.0147852
    INTRODUCTION: Methadone has long been regarded as an effective treatment for opioid dependence. However, many patients discontinue maintenance therapy because of its side effects, with one of the most common being sexual dysfunction. Buprenorphine is a proven alternative to methadone. This study aimed to investigate sexual dysfunction in opioid-dependent men on buprenorphine maintenance treatment (BMT) and methadone maintenance treatment (MMT). The secondary aim was to investigate the correlation between sexual dysfunction and the quality of life in these patients.

    METHODS: Two hundred thirty-eight men participated in this cross-sectional study. Four questionnaires were used, the Mini International Neuropsychiatric Interview, Opiate Treatment Index, Malay version of the International Index of Erectile Function 15 (Mal-IIEF-15), and World Health Organization Quality of Life-BREF Scale. Multivariate analysis of covariance was used to examine the relationship between MMT and BMT and the Mal-IIEF 15 scores while controlling for all the possible confounders.

    RESULTS: The study population consisted of 171 patients (71.8%) on MMT and 67 (28.2%) on BMT. Patients in the MMT group who had a sexual partner scored significantly lower in the sexual desire domain (p < 0.012) and overall satisfaction (p = 0.043) domain compared with their counterparts in the BMT group. Similarly, patients in the MMT group without a sexual partner scored significantly lower in the orgasmic function domain (p = 0.008) compared with those in the BMT group without a partner. Intercourse satisfaction (p = 0.026) and overall satisfaction (p = 0.039) were significantly associated with the social relationships domain after adjusting for significantly correlated sociodemographic variables.

    CONCLUSIONS: Sexual functioning is critical for improving the quality of life in patients in an opioid rehabilitation program. Our study showed that buprenorphine causes less sexual dysfunction than methadone. Thus, clinicians may consider the former when treating heroin dependents who have concerns about sexual function.

    Matched MeSH terms: Methadone/therapeutic use
  3. Yee A, Hoong MC, Joyce YC, Loh HS
    Subst Use Misuse, 2018 01 28;53(2):276-285.
    PMID: 28857640 DOI: 10.1080/10826084.2017.1342661
    BACKGROUND: Nicotine use disorder is highly prevalent among methadone maintenance patients with its tobacco-related problems. However, the treatment modalities for nicotine use disorder remain limited.
    OBJECTIVE: Our meta-analysis aims to examine the effectiveness of smoking cessation treatment in this group of patients.
    METHODS: A total of 1358 participants were recruited from 9 eligible studies, published from the start of studies in this field till Feb 2016, identified from PubMed, OVID, EMBASE and Google Scholar databases. Two independent reviewers assessed the eligibility of each report based on predefined inclusion criteria. Pooled odd ratios or weighted mean difference was performed using random effects.
    RESULTS: The treatments for smoking cessation among MMT patients are behavioral and pharmacological therapies. Smoking cessation was better achieved with nicotine replacement therapy (NRT) especially with adjunctive behavioral therapy. The pooled odds ratio of smokers' abstinence of smoking by the end of the treatment between NRT and placebo group was 6.32 (95% CI = 1.18 to 33.75, p = 0.03) and is statistically significant. Any additional behavior therapy among MMT patients who received the smoking cessation pharmacotherapy as the primary treatment was not better than those who only received standard care (Odds ratio was 2.53, 95% CI = 0.75 to 8.56, p = 0.14).
    CONCLUSIONS: Although NRT is proven to be effective in smoking cessation, more studies are warranted to prove the effects of other pharmacotherapy in smoking cessation.
    Matched MeSH terms: Methadone/therapeutic use
  4. Noordin NM, Merican MI, Rahman HA, Lee SS, Ramly R
    Lancet, 2008 Sep 27;372(9644):1149-50.
    PMID: 18926274 DOI: 10.1016/S0140-6736(08)61479-8
    Matched MeSH terms: Methadone/therapeutic use*
  5. Mohammadi M, Kazeminia M, Abdoli N, Khaledipaveh B, Shohaimi S, Salari N, et al.
    Health Qual Life Outcomes, 2020 Nov 23;18(1):373.
    PMID: 33225933 DOI: 10.1186/s12955-020-01599-3
    BACKGROUND: Opioids addiction and misuse are among the major problems in the world today. There have been several preliminary studies examining the effect of methadone on depression among addicts, however, these studies have reported inconsistent and even contradictory results. Therefore, the aim of the present study was to determine the effect of methadone on depression in addicts in Iran and around the world, using a meta-analysis approach.

    METHODS: This study was a systematic review and meta-analysis including articles published in the SID, MagIran, IranMedex, IranDoc, Cochrane, Embase, ScienceDirect, Scopus, PubMed and Web of Science databases were searched systematically to find articles published from 2006 to March 2019. Heterogeneity index was determined using the Cochran's test (Qc) and I2. Considering heterogeneity of studies, the random effects model was used to estimate the standardized difference of mean score for depression. Subsequently, the level of depression reduction in Iran and worldwide in the intervention group before and after the testwas measured.

    RESULTS: A total of 19 articles met the inclusion criteria, and were therefore selected for this systematic review and meta-analysis. The sample size of the intervention group in the selected studies was 1948. According to the meta-analysis results, the mean depression score in the intervention group was 26.4 ± 5.6 and 18.4 ± 2.6 before and after intervention respectively, indicating the reducing effect of methadone on depression, and this difference was statistically significant (P 

    Matched MeSH terms: Methadone/therapeutic use*
  6. 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.

    Matched MeSH terms: Methadone/therapeutic use
  7. Ismail H, Ahmad H, Sanef A, Shahabudin W, Reffin N, Chan D, et al.
    Am J Drug Alcohol Abuse, 2023 Jan 02;49(1):97-108.
    PMID: 36786756 DOI: 10.1080/00952990.2022.2161051
    Background: In recent years, amphetamine-type-stimulants (ATS) have been extensively misused in South-East Asia, inducing major problems among methadone-maintenance-treatment (MMT) patients.Objective: We examine ATS-misuse prevalence and its determinants among MMT patients in East-Coast-Malaysia.Methods: A retrospective-observational study was conducted on government-subsidized medication for opioid-use-disorder (MOUD) treatment clinics involving 292 MMT-patients (98% males) who were selected using a multilevel-proportional-stratified random sampling technique. Information obtained during the mandatory monitoring procedure from January 1 to December 31 2019, was utilized to determine ATS misuse prevalence from consecutive random urine drug screening. The determinants associated with its use, namely sociodemographics, social networks, comorbidities, and pharmacological assessments were analyzed via a logistic model.Results: Overall, 52.2% of the MMT-patients (95% CI: 0.42-0.54) had misused ATS at least once during their methadone treatment. These misusing patients were active smokers, hepatitis B and C seronegative, concurrently misused opioids, and had received suboptimum prescribed doses of methadone. Multiple logistic regression analysis demonstrated that the odds of misusing ATS during methadone treatment were 37 times higher among those who concurrently misused opioids (AOR: 37.60, 95% CI: 14.03-100.74) and 12 times higher among those who received suboptimal methadone doses (<60 mg/day) (AOR: 12.24, 95% CI: 5.58-25.43).Conclusion: This study demonstrated the significant prevalence of ATS misuse among MMT-patients in East-Coast-Malaysia, especially among patients who were prescribed suboptimal doses of methadone and/or demonstrated concomitant opioid-misuse. Stringent urine-monitoring is crucial to prevent diversion to ATS misuse. Nonetheless, to avoid negligence and improve physician engagement, the relevant authorities should immediately plan a comprehensive national-standard training module comprising support activities for professional methadone-prescribers.
    Matched MeSH terms: Methadone/therapeutic use
  8. Moey CH, Yee A, Muhamud Kayat SB
    J Addict Dis, 2020 04 24;38(3):263-270.
    PMID: 32329412 DOI: 10.1080/10550887.2020.1748990
    Background and Objectives: Smoking is the primary cause of preventable death and is highly prevalent among patients on methadone assisted treatment (MAT). This study aims to assess the prevalence of tobacco use disorder (TUD) among patients on MAT, the factors associated with TUD, and to examine the association between TUD and quality of life.Methods: A total of 171 male patients receiving MAT in two Malaysian government hospitals were assessed for TUD, levels of nicotine dependence, relevant associated factors and quality of life using DSM-5 criteria, Fagerström Test for Nicotine Dependence (FTND), Opiate Treatment Index (OTI), Mini-International Neuropsychiatric Interview (M.I.N.I.) and World Health Organization Quality of Life (WHOQOL)-BREF.Results: The prevalence of TUD was 81.3%. Being employed was significantly associated with having a TUD. Among the patients with TUD, the mean FTND score was 3.8 (SD ± 2.0). Being younger, having poorer social function, and presence of current opioid dependence were significantly correlated with higher FTND scores. There was no significant difference in the quality of life between patients with and without TUD. Following multiple linear regression analysis, being unmarried and poor health status were the two factors that significantly predicted a lower quality of life in all four domains of WHOQOL-BREF.Conclusions: Given the high prevalence of TUD among methadone-assisted patients, smoking cessation treatment should be integrated into the MAT program in Malaysia. Also, addressing patients' marital and health issues during MAT can be instrumental in improving their quality of life.
    Matched MeSH terms: Methadone/therapeutic use
  9. Robson N, Rashid R, Nazar M, Habil H
    Asia Pac Psychiatry, 2015 Mar;7(1):121-5.
    PMID: 23857876 DOI: 10.1111/j.1758-5872.2012.00194.x
    Matched MeSH terms: Methadone/therapeutic use*
  10. Wolfe D, Carrieri MP, Shepard D
    Lancet, 2010 Jul 31;376(9738):355-66.
    PMID: 20650513 DOI: 10.1016/S0140-6736(10)60832-X
    We review evidence for effectiveness, cost-effectiveness, and coverage of antiretroviral therapy (ART) for injecting drug users (IDUs) infected with HIV, with particular attention to low-income and middle-income countries. In these countries, nearly half (47%) of all IDUs infected with HIV are in five nations--China, Vietnam, Russia, Ukraine, and Malaysia. In all five countries, IDU access to ART is disproportionately low, and systemic and structural obstacles restrict treatment access. IDUs are 67% of cumulative HIV cases in these countries, but only 25% of those receiving ART. Integration of ART with opioid substitution and tuberculosis treatment, increased peer engagement in treatment delivery, and reform of harmful policies--including police use of drug-user registries, detention of drug users in centres offering no evidence-based treatment, and imprisonment for possession of drugs for personal use--are needed to improve ART coverage of IDUs.
    Matched MeSH terms: Methadone/therapeutic use
  11. Vijay A, Bazazi AR, Yee I, Kamarulzaman A, Altice FL
    J Subst Abuse Treat, 2015 Jul;54:29-36.
    PMID: 25841703 DOI: 10.1016/j.jsat.2015.01.014
    Little is known about attitudes toward and experiences with opioid maintenance therapy (OMT) among people who inject drugs in Malaysia, a country where people who inject drugs comprise 1.3% of the adult population.
    Matched MeSH terms: Methadone/therapeutic use*
  12. Musa R, Abu Bakar AZ, Ali Khan U
    Asia Pac J Public Health, 2012 Sep;24(5):826-32.
    PMID: 21490111 DOI: 10.1177/1010539511404396
    BACKGROUND: The commencement of methadone maintenance therapy (MMT) in 2005 represents a quantum leap in the management of heroin dependence in Malaysia.
    OBJECTIVE: To examine the 2-year outcomes of this modality in the treatment of heroin dependence with respect to the quality of life (QOL), heroin abstinence, and rate of employment among heroin dependants attending the Tengku Ampuan Afzan Hospital (HTAA) MMT clinic.
    METHOD: This was an experimental study in which the second QOL assessment was conducted 2 years after treatment initiation.
    RESULTS: A total of 172 patients enrolled at the point of entry to the MMT program. The authors examined 107 patients who remained in the program 2 years later (62.6% retention rate). A paired t test demonstrated significant improvements in all 4 domains of QOL (physical, psychological, social relationships, and environment; P < .001). The most marked improvement was noted in the psychological domain.
    CONCLUSION: The MMT program at HTAA is effective in improving the QOL among heroin dependants.
    Study site: MMT clinic, Tengku Ampuan Afzan Hospital (HTAA), Kuantan, Pahang, Malaysia
    Matched MeSH terms: Methadone/therapeutic use*
  13. Madden L, Bojko MJ, Farnum S, Mazhnaya A, Fomenko T, Marcus R, et al.
    Int J Drug Policy, 2017 11;49:48-53.
    PMID: 28957756 DOI: 10.1016/j.drugpo.2017.07.025
    BACKGROUND: Opioid agonist therapies (OAT) like methadone and buprenorphine maintenance treatment remain markedly under-scaled in Ukraine despite adequate funding. Clinicians and administrators were assembled as part of an implementation science strategy to scale-up OAT using the Network for Improvement of Addiction Treatment (NIATx) approach.

    METHODS: Nominal Group Technique (NGT), a key ingredient of the NIATx toolkit, was directed by three trained coaches within a learning collaborative of 18 OAT clinicians and administrators to identify barriers to increase OAT capacity at the regional "oblast" level, develop solutions, and prioritize local change projects. NGT findings were supplemented from detailed notes collected during the NGT discussion.

    RESULTS: The top three identified barriers included: (1) Strict regulations and inflexible policies dictating distribution and dispensing of OAT; (2) No systematic approach to assessing OAT needs on regional or local level; and (3) Limited funding and financing mechanisms combined with a lack of local/regional control over funding for OAT treatment services.

    CONCLUSIONS: NGT provides a rapid strategy for individuals at multiple levels to work collaboratively to identify and address structural barriers to OAT scale-up. This technique creates a transparent process to address and prioritize complex issues. Targeting these priorities allowed leaders at the regional and national level to advocate collectively for approaches to minimize obstacles and create policies to improve OAT services.

    Matched MeSH terms: Methadone/therapeutic use
  14. Leong FW, Mohd Yasin MA, Muhd Ramli ER, Fadzil NA, Kueh YC
    Int J Environ Res Public Health, 2019 Nov 12;16(22).
    PMID: 31726715 DOI: 10.3390/ijerph16224434
    There has been an increasing interest in personality study over the years. This has led to the necessity for personality measures with good psychometric properties. However, good personality measures are usually too cumbersome to apply in real practical settings due to their length. This study aims to validate a commonly used short personality measure of the Big Five model, i.e., Mini-IPIP (Mini International Personality Item Pool), which has never been validated and used in the substance abuse population in the local setting. The participants were 239 individuals attending one of the six methadone clinics in Malaysia. Structural analysis was conducted using confirmatory factor analysis. Results showed a good model fit for Mini-IPIP when item-parcelling and adding-in correlated uniqueness items were applied (fit indices: Comparative Fit Index = 0.949, Standardised Root Mean Residual = 0.044). Our study supported the five-factor solution for the Mini-IPIP. It is valid and reliable to be used among individuals with drug abuse in Malaysia.
    Matched MeSH terms: Methadone/therapeutic use*
  15. Culbert GJ, Waluyo A, Iriyanti M, Muchransyah AP, Kamarulzaman A, Altice FL
    Drug Alcohol Depend, 2015 Apr 01;149:71-9.
    PMID: 25659895 DOI: 10.1016/j.drugalcdep.2015.01.018
    BACKGROUND: In Indonesia, incarceration of people who inject drugs (PWID) and access to drugs in prison potentiate within-prison drug injection (WP-DI), a preventable and extremely high-risk behavior that may contribute substantially to HIV transmission in prison and communities to which prisoners are released.

    AIMS: This mixed method study examined the prevalence, correlates, and social context of WP-DI among HIV-infected male prisoners in Indonesia.

    METHODS: 102 randomly selected HIV-infected male prisoners completed semi-structured voice-recorded interviews about drug use changes after arrest, drug use cues within prison, and impact of WP-DI on HIV and addiction treatment. Logistic regression identified multivariate correlates of WP-DI and thematic analysis of interview transcripts used grounded-theory.

    RESULTS: Over half (56%) of participants reported previous WP-DI. Of those, 93% shared injection equipment in prison, and 78.6% estimated sharing needles with ≥ 10 other prisoners. Multivariate analyses independently correlated WP-DI with being incarcerated for drug offenses (AOR = 3.29, 95%CI = 1.30-8.31, p = 0.011) and daily drug injection before arrest (AOR = 5.23, 95%CI = 1.42-19.25, p = 0.013). Drug availability and proximity to drug users while incarcerated were associated with frequent drug craving and escalating drug use risk behaviors after arrest. Energetic heroin marketing and stigmatizing attitudes toward methadone contribute to WP-DI and impede addiction and HIV treatment.

    CONCLUSIONS: Frequent WP-DI and needle sharing among these HIV-infected Indonesian prison inmates indicate the need for structural interventions that reduce overcrowding, drug supply, and needle sharing, and improve detection and treatment of substance use disorders upon incarceration to minimize WP-DI and associated harm.

    Matched MeSH terms: Methadone/therapeutic use
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