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Biomedical subjects

Charlotte N E Tompkins

Publications and source records attributed to Charlotte N E Tompkins.

11 recordsLinked to original sources

Buprenorphine versus dihydrocodeine for opiate detoxification in primary care: a randomised controlled trial.

BACKGROUND: Many drug users present to primary care requesting detoxification from illicit opiates. There are a number of detoxification agents but no recommended drug of choice. The purpose of this study is to compare buprenorphine with dihydrocodeine for detoxification from illicit opiates in primary care. METHODS: Open label randomised controlled trial in NHS Primary Care (General Practices), Leeds, UK. Sixty consenting adults using illicit opiates received either daily sublingual buprenorphine or daily oral dihydrocodeine. Reducing regimens for both interventions were at the discretion of prescribing doctor within a standard regimen of not more than 15 days. Primary outcome was abstinence from illicit opiates at final prescription as indicated by a urine sample. Secondary outcomes during detoxification period and at three and six months post detoxification were recorded. RESULTS: Only 23% completed the prescribed course of detoxification medication and gave a urine sample on collection of their final prescription. Risk of non-completion of detoxification was reduced if allocated buprenorphine (68% vs 88%, RR 0.58 CI 0.35-0.96, p = 0.065). A higher proportion of people allocated to buprenorphine provided a clean urine sample compared with those who received dihydrocodeine (21% vs 3%, RR 2.06 CI 1.33-3.21, p = 0.028). People allocated to buprenorphine had fewer visits to professional carers during detoxification and more were abstinent at three months (10 vs 4, RR 1.55 CI 0.96-2.52) and six months post detoxification (7 vs 3, RR 1.45 CI 0.84-2.49). CONCLUSION: Informative randomised trials evaluating routine care within the primary care setting are possible amongst drug using populations. This small study generates unique data on commonly used treatment regimens.

Adult↗

The Leeds Evaluation of Efficacy of Detoxification Study (LEEDS) prisons project pilot study: protocol for a randomised controlled trial comparing dihydrocodeine and buprenorphine for opiate detoxification.

BACKGROUND: In the United Kingdom (UK), there is an extensive market for the class 'A' drug heroin. Many heroin users spend time in prison. People addicted to heroin often require prescribed medication when attempting to cease their drug use. The most commonly used detoxification agents in UK prisons are buprenorphine, dihydrocodeine and methadone. However, national guidelines do not state a detoxification drug of choice. Indeed, there is a paucity of research evaluating the most effective treatment for opiate detoxification in prisons. This study seeks to address the paucity by evaluating routinely used interventions amongst drug using prisoners within UK prisons. METHODS/DESIGN: The Leeds Evaluation of Efficacy of Detoxification Study (LEEDS) Prisons Pilot Study will use randomised controlled trial methodology to compare the open use of buprenorphine and dihydrocodeine for opiate detoxification, given in the context of routine care, within HMP Leeds. Prisoners who are eligible and give informed consent will be entered into the trial. The primary outcome measure will be abstinence status at five days post detoxification, as determined by a urine test. Secondary outcomes during the detoxification and then at one, three and six months post detoxification will be recorded.

Journal Article↗

A review of the evidence for the effectiveness of primary prevention interventions for hepatitis C among injecting drug users.

BACKGROUND: Hepatitis C (HCV) prevalence is most common amongst injecting drug users where up to 98% of the population can be infected despite a low prevalence of HIV. This review considers the evidence for the effectiveness of primary prevention interventions to reduce incidence or prevalence of hepatitis C. METHODS: Systematic review of the major electronic medical databases: Medline, EMBASE, PsycINFO, CINAHL and the Cochrane Library (Evidence Based Health). Either intervention or observational studies were included if they described an intervention targeting injecting drug using populations with the outcome to reduce either the prevalence or incidence of hepatitis C infection. RESULTS: 18 papers were included in the final review from 1007 abstracts. Needle exchange programmes reduce the prevalence of HCV though prevalence remains high. Similarly the effectiveness of methadone maintenance treatment is only marginally effective at reducing HCV incidence. There is limited evidence evaluating either the effectiveness of behavioural interventions, bleach disinfectants, or drug consumption rooms. CONCLUSION: Primary prevention interventions have led to a reduction in HIV incidence, have been less effective at reducing HCV incidence. Global prevalence of HCV remains disturbingly high in injecting drug users. A robust response to the global health problem of HCV will require provision of new interventions. Behavioural interventions; distribution of bleach disinfectant; other injecting paraphernalia alongside sterile needle distribution; and evaluation of drug consumption rooms merit further expansion internationally and research activity to contribute to the emerging evidence base. Whilst the prevalence of HCV remains high, nevertheless many current interventions aimed at primary HCV prevention have been shown to be cost-effective due to their significant positive impact upon prevalence of HIV.

Journal Article↗

How can health services effectively meet the health needs of homeless people?

BACKGROUND: Homelessness affects many people in contemporary society with consequences for individuals and the wider community. Homeless people experience poorer levels of general physical and mental health than the general population and there is a substantial international evidence base which documents multiple morbidity. Despite this, they often have problems in obtaining suitable health care. AIM: To critically examine the international literature pertaining to the health care of homeless people and discuss the effectiveness of treatment interventions. DESIGN OF STUDY: Review and synthesis of current evidence. METHOD: Medline (1966-2003), EMBASE (1980-2003), PsycINFO (1985-2003), CINAHL (1982-2003), Web of Science (1981-2003) and the Cochrane Library (Evidence Based Health) databases were reviewed using key terms relating to homelessness, intervention studies, drug misuse, alcohol misuse and mental health. The review was not limited to publications in English. It included searching the internet using key terms, and grey literature was also accessed through discussion with experts. RESULTS: Internationally, there are differing models and services aimed at providing health care for homeless people. Effective interventions for drug dependence include adequate oral opiate maintenance therapy, hepatitis A, B and tetanus immunisation, safer injecting advice and access to needle exchange programmes. There is emerging evidence for the effectiveness of supervised injecting rooms for homeless injecting drug users and for the peer distribution of take home naloxone in reducing drug-related deaths. There is some evidence that assertive outreach programmes for those with mental ill health, supportive programmes to aid those with motivation to address alcohol dependence and informal programmes to promote sexual health can lead to lasting health gain. CONCLUSIONS: As multiple morbidity is common among homeless people, accessible and available primary health care is a pre-requisite for effective health interventions. This requires addressing barriers to provision and multi-agency working so that homeless people can access the full range of health and social care services. There are examples of best practice in the treatment and retention of homeless people in health and social care and such models can inform future provision.

Health Promotion↗

Exploring risk perception and behaviour of homeless injecting drug users diagnosed with hepatitis C.

Injecting drug users (IDUs) are at the greatest risk of hepatitis C infection by using any item of injecting equipment that has come into contact with contaminated blood. Alongside this, homeless IDUs have been identified as being at increased risk of harm in their illicit drug taking behaviour. This study interviewed 17 hepatitis C positive homeless IDUs about their injecting practices. In-depth interviews explored the impact of a positive hepatitis C diagnosis on their injecting and identified their risk behaviours and perceptions. The interviews were tape-recorded, transcribed and analysed using the framework approach. Homeless IDUs engaged in both high risk and unhygienic injecting practices, such as using drugs outside and in public places, sharing injecting equipment and re-using cleaned needles. Excessive needle reuse whilst in prison was also identified. However, the findings were not universally bleak as a positive diagnosis of hepatitis C did lead to some behaviour change towards safer injecting and some adopted other lifestyle and behaviour changes. It was, however, common for homeless people to devolve responsibility for preventing hepatitis C transmission to their peers, especially when injecting with others. Knowledge regarding possible transmission through injecting paraphernalia appeared to make users more careful to reduce it through these routes. Placing a continuous emphasis on health promotion is therefore important in educating IDUs about the hepatitis C transmission risks associated with injecting drug use. Information regarding safer and hygienic use, including accurate information regarding the most effective methods to clean used equipment, must be re-enforced by people working with homeless injecting drug users.

Blood-Borne Pathogens↗

The Leeds Evaluation of Efficacy of Detoxification Study (LEEDS) project: an open-label pragmatic randomised control trial comparing the efficacy of differing therapeutic agents for primary care detoxification from either street heroin or methadone [ISRCTN07752728].

BACKGROUND: Heroin is a synthetic opioid with an extensive illicit market leading to large numbers of people becoming addicted. Heroin users often present to community treatment services requesting detoxification and in the UK various agents are used to control symptoms of withdrawal. Dissatisfaction with methadone detoxification 8 has lead to the use of clonidine, lofexidine, buprenorphine and dihydrocodeine; however, there remains limited evaluative research. In Leeds, a city of 700,000 people in the North of England, dihydrocodeine is the detoxification agent of choice. Sublingual buprenorphine, however, is being introduced. The comparative value of these two drugs for helping people successfully and comfortably withdraw from heroin has never been compared in a randomised trial. Additionally, there is a paucity of research evaluating interventions among drug users in the primary care setting. This study seeks to address this by randomising drug users presenting in primary care to receive either dihydrocodeine or buprenorphine. METHODS/DESIGN: The Leeds Evaluation of Efficacy of Detoxification Study (LEEDS) project is a pragmatic randomised trial which will compare the open use of buprenorphine with dihydrocodeine for illicit opiate detoxification, in the UK primary care setting. The LEEDS project will involve consenting adults and will be run in specialist general practice surgeries throughout Leeds. The primary outcome will be the results of a urine opiate screening at the end of the detoxification regimen. Adverse effects and limited data to three and six months will be acquired.

Adolescent↗

Abusive behaviour experienced by primary care receptionists: a cross-sectional survey.

BACKGROUND: Receptionists act as gatekeepers to GPs, and thus are often placed in situations of conflict. However, there is a lack of research in this area. OBJECTIVE: The purpose of this study was to identify the incidence and associations of verbal and physical abuse against primary care receptionists, both pre- and post-'zero tolerance'. METHODS: A postal questionnaire was designed, piloted and sent to all reception staff in 50 randomly selected general practices in Leeds. The primary purpose was to identify any verbal or physical abuse experienced in the 12 months prior to the survey and assess the association between abuse experienced and deprivation. RESULTS: Seventy percent of receptionists completed and returned the questionnaire. Over two-thirds of receptionists had experienced verbal abuse in the last year. During the same time period, 60% reported telephone abuse and 55% reported face to face abuse. The incidence of abuse was higher in the year prior to the study than in the preceding period. Practice deprivation was identified as a significant factor for verbal abuse (P = 0.003). CONCLUSION: Verbal abuse against receptionists is significantly associated with the level of deprivation of the practice area. There is no evidence that 'zero tolerance' led to a reduction in abuse experienced by primary care receptionists. All primary care receptionists should receive adequate training on managing abuse.

Adult↗

Impact of the CSM advice on thioridazine on general practitioner prescribing behaviour in Leeds: time series analysis.

In December 2000, the Committee for Safety of Medicines (CSM) advised that thioridazine may prolong QT intervals risking arrhythmias. We investigated the impact on general practitioner prescribing of thioridazine using a time series analysis. Numbers of items and costs of antipsychotics and benzodiazepines prescribed in Leeds from May 1999 until April 2002 were collated. Post-advice, thioridazine prescriptions dropped by 810 items per month (95% confidence interval = 420 to 1200, P < 0.001) but others increased slightly in response. Costs mimicked these changes. Fresh criteria are proposed for appraising the quality of evidence needed to inform future urgent facsimile transmissions.

Antipsychotic Agents↗

Associations between migrancy, health and homelessness: a cross-sectional study.

There is limited awareness of the link between differing health problems and migrancy of homeless people. The present cross-sectional study sought to quantify the extent of migrancy of homeless people from their place of birth (PLOB) and evaluate whether a history of problematic drug use, alcohol misuse or enduring mental health problems were associated with migrancy from their PLOB. The work was conducted at an inner-city health centre for the homeless in the north of England. Place of birth was created as an entry on the computerised registration records. The PLOB was collected and recorded for each homeless person registering with the service over the study period. Information was also extracted regarding diagnoses of problematic illicit drug use, problematic alcohol use and enduring mental health problems for each homeless person. The study identified statistically significant differences for the migration of homeless people from their PLOB for age, problematic drug use and problematic alcohol use. Problematic alcohol use is independently associated with an increased likelihood of migration from the PLOB. Conversely, a history of illicit drug use is associated with a reduced possibility of migration from the PLOB when accessing primary healthcare services. There was no significant difference for migration from the PLOB for mental health. Not all homeless people migrate from their PLOB and health problems of drug use, mental health or alcohol use are independently associated with different patterns of migration. Understanding the migrancy of homeless people is important when planning and targeting appropriate health and social services to address their varying health, social and psychological needs.

Adolescent↗