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1.
AIDS Care ; 36(5): 618-630, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-37419138

RESUMEN

Substance use in people with HIV (PWH) negatively impacts antiretroviral therapy (ART) adherence. However, less is known about this in the current treatment era and the impact of specific substances or severity of substance use. We examined the associations of alcohol, marijuana, and illicit drug use (methamphetamine/crystal, cocaine/crack, illicit opioids/heroin) and their severity of use with adherence using multivariable linear regression in adult PWH in care between 2016 and 2020 at 8 sites across the US. PWH completed assessments of alcohol use severity (AUDIT-C), drug use severity (modified ASSIST), and ART adherence (visual analogue scale). Among 9400 PWH, 16% reported current hazardous alcohol use, 31% current marijuana use, and 15% current use of ≥1 illicit drugs. In multivariable analysis, current methamphetamine/crystal use, particularly common among men who had sex with men, was associated with 10.1% lower mean ART adherence (p < 0.001) and 2.6% lower adherence per 5-point higher severity of use (ASSIST score) (p < 0.001). Current and more severe use of alcohol, marijuana, and other illicit drugs were also associated with lower adherence in a dose-dependent manner. In the current HIV treatment era, individualized substance use treatment, especially for methamphetamine/crystal, and ART adherence should be prioritized.


Asunto(s)
Infecciones por VIH , Drogas Ilícitas , Metanfetamina , Trastornos Relacionados con Sustancias , Adulto , Masculino , Humanos , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/complicaciones , Trastornos Relacionados con Sustancias/complicaciones , Antirretrovirales/uso terapéutico , Etanol/uso terapéutico , Metanfetamina/uso terapéutico , Cumplimiento de la Medicación
2.
Afr J Emerg Med ; 13(4): 313-321, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38033380

RESUMEN

Background: The effectiveness of ketamine as adjunctive or monotherapy for post-intubation sedation in adults with trauma on mechanical ventilation is unclear. Methods: A rapid review of systematic reviews of randomized controlled trials, then randomized controlled trials or observational studies was conducted searching three electronic databases (PubMed, Embase, Cochrane Library) and one clinical trial registry on June 1, 2022. We used a prespecified protocol following Cochrane rapid review methods. Results: We identified eight systematic reviews of randomized controlled trials and observational studies. Among the included reviews, only the most relevant, up to date, highest quality-assessed reviews and reviews that reported on critical outcomes were considered. Adjunctive ketamine showed a morphine sparing effect (MD -13.19 µmg kg-1 h-1, 95 % CI -22.10 to -4.28, moderate certainty of evidence, 6 RCTs), but no to little effect on midazolam sparing effect (MD 0.75 µmg kg-1 h-1, 95 % CI -1.11 to 2.61, low certainty of evidence, 6 RCTs) or duration of mechanical ventilation in days (MD -0.17 days, 95 % CI -3.03 to 2.69, moderate certainty of evidence, 3 RCTs).Adjunctive ketamine therapy may reduce mortality (OR 0.88, 95 % CI 0.54 to 1.43, P = 0.60, very low certainty of evidence, 5 RCTs, n = 3076 patients) resulting in 30 fewer deaths per 1000, ranging from 132 fewer to 87 more, but the evidence is very uncertain. Ketamine results in little to no difference in length of ICU stay (MD 0.04 days, 95 % CI -0.12 to 0.20, high certainty of evidence, 5 RCTs n = 390 patients) or length of hospital stay (MD -0.53 days, 95 % CI -1.36 to 0.30, high certainty of evidence, 5 RCTs, n = 277 patients).Monotherapy may have a positive effect on respiratory and haemodynamic outcomes, however the evidence is very uncertain. Conclusion: Adjunctive ketamine for post-intubation analgosedation results in a moderate meaningful net benefit but there is uncertainty for benefit and harms as monotherapy.

3.
S Afr Med J ; 113(8): 39-43, 2023 08 03.
Artículo en Inglés | MEDLINE | ID: mdl-37882120

RESUMEN

BACKGROUND: Heart failure affects nearly 65 million people globally, resulting in recurrent hospital admissions and substantial healthcare expenditure. The use of morphine in the management of acute pulmonary oedema remains controversial, with conflicting guidance and significant variation in practice. Synthesised evidence is needed to inform standard treatment guidelines and clinical practice. OBJECTIVE: To determine whether morphine should be used in the treatment of acute pulmonary oedema (APE) in adults. METHODS: A rapid review of systematic reviews of randomised controlled trials or observational studies, and then randomised controlled trials, was conducted searching three electronic databases (PubMed, Embase, Cochrane Library) and one clinical trial registry on 12 February 2022. We used a prespecified protocol following Cochrane rapid review methods and aligned to the National Standard Treatment Guidelines and Essential Medicines List methodology. We first considered relevant high-quality systematic reviews of randomised controlled trials or observational studies, then (if required) randomised controlled trials to inform time-sensitive or urgent evidence requests, clinical practice, policy, or standard treatment guidelines. RESULTS: We identified four systematic reviews of observational studies. The two most relevant, up-to-date, and highest-quality reviews were used to inform evidence for critical outcomes. Morphine may increase in-hospital mortality (odds ratio (OR) 1.78; 95% confidence interval (CI) 1.01 - 3.13; low certainty of evidence; six observational studies, n=151 735 participants), resulting in 15 more per 1 000 hospital deaths, ranging from 0 to 40 more hospital deaths. Morphine may result in a large increase in invasive mechanical ventilation (OR 2.72; 95% CI 1.09 - 6.80; low certainty of evidence; four observational studies, n=167 847 participants), resulting in 45 more per 1 000 ventilations, ranging from 2 more to 136 more. Adverse events and hospital length of stay were not measured across reviews or trials. CONCLUSION: Based on the most recent, relevant and best-available quality evidence, morphine use in adults with APE may increase in-hospital and all-cause mortality and may result in a large increase in the need for invasive mechanical ventilation compared to not using morphine. Recommending against the use of morphine in pulmonary oedema may improve patient outcomes. Disinvesting in morphine for this indication may result in cost savings, noting the possible accrued benefits of fewer patients requiring invasive ventilation and management of morphine-related side-effects.


Asunto(s)
Hominidae , Edema Pulmonar , Adulto , Animales , Humanos , Derivados de la Morfina , Edema Pulmonar/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto , Sudáfrica , Revisiones Sistemáticas como Asunto
4.
World J Surg ; 47(12): 3060-3069, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37747549

RESUMEN

BACKGROUND: Appendicitis is one of the most common emergency surgical conditions worldwide. Delays in accessing appendectomy can lead to complications. Evidence on these delays in low- and middle-income countries (LMICs) is lacking. The aim of this review was to identify and synthesise the available evidence on delays to accessing appendectomy in LMICs. METHODS: This scoping review followed the Preferred Reporting Items for Systematic Reviews and Meta-analysis Extension for Scoping Reviews framework. The delays and their interconnectivity in LMICs were synthesised and interpreted using the Three Delays framework. We reviewed Africa Wide EBSCOhost, PubMed-Medline, Scopus, Web of Science, African Journals Online (AJOL), and Bioline databases. RESULTS: Our search identified 21 893 studies, of which 78 were included in the final analysis. All of the studies were quantitative. Fifty per cent of the studies included all three types of delays. Delays in seeking care were influenced by a lack of awareness of appendicitis symptoms, and the use of self and alternative medication, which could be linked to delays in receiving care, and the barrier refusal of medical treatment due to fear. Financial concerns were a barrier observed throughout the care pathway. CONCLUSION: This review highlighted the need for additional studies on delays to accessing appendectomy in additional LMICs. Our review demonstrates that in LMICs, persons seeking appendectomy present late to health-care facilities due to several patient-related factors. After reaching a health-care facility, accessing appendectomy can further be delayed owing to a lack of adequate hospital resources.


Asunto(s)
Apendicitis , Países en Desarrollo , Humanos , Apendicectomía , Apendicitis/cirugía , Instituciones de Salud , Hospitales
5.
Afr J Emerg Med ; 13(4): 331-338, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38162895

RESUMEN

Introduction: Reliable systematic reviews are essential to inform clinical practice guidelines, policies and further research priorities in Africa. For systematic review findings to be trustworthy, they need to be conducted with methodological rigour and reported transparently. We assessed the methodological quality of systematic reviews published in African emergency medicine journals, comparing them to those published in international emergency medicine journals. Additionally, we describe the types of review literature published in the African journals. Methods: We performed a cross-sectional methodological study of systematic reviews published in selected African and international emergency medicine journals from 2012 to 2021. Studies were eligible if they were i) a systematic review on an emergency medicine topic, ii) published in one of the top five emergency medicine journals in the African region or internationally and iii) published between January 2012 and December 2021 in English or French. We searched PubMed, Web of Science and Scopus databases and hand-searched selected journals. Two authors screened titles, abstracts and full texts independently and in duplicate. Data extraction was performed by one reviewer, using a standardised form, after completing a calibration exercise. We described the characteristics of systematic reviews and assessed methodological quality using AMSTAR II. Results: We identified 34 (37%) African and 511 (54%) international systematic reviews from 92 and 948 review articles respectively across 10 journals. We included all 34 African and a random sample of 100 international systematic reviews. Methodological quality was low or critically low for all the African systematic reviews (n=34, 100%) and all but three international systematic reviews (n=97, 97%). The median number of critical domain weaknesses was 4 (IQR 4;5) and 2 (IQR 2;4) for African and international systematic reviews respectively. The most common weaknesses across both African and international systematic reviews were i) not establishing a priori review protocols, ii) unclear selection of study designs iii) not providing a list of excluded studies and iv) unclear reporting on funding sources for included studies. Conclusion: Emergency medicine systematic reviews published in African and international journals are lacking in methodological quality. Reporting an a priori protocol, developing a comprehensive search strategy, appropriate evidence synthesis and adequate assessment of risk of bias, heterogeneity and evidence certainty may improve the quality of systematic reviews.

6.
S Afr Med J ; 112(7): 472-477, 2022 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-36217857

RESUMEN

BACKGROUND: An increased incidence of thromboembolic events in hospitalised COVID­19 patients has been demonstrated despite the use of low-molecular-weight heparin (LMWH). Antiplatelet therapy prior to admission and early in the disease course has been hypothesised to be protective against thrombosis. OBJECTIVES: To describe the bleeding and thrombosis outcomes in hospitalised patients with confirmed COVID­19 receiving LMWH, with and without concomitant antiplatelet therapy. Secondary objectives were to explore predictors of bleeding and thrombosis outcomes, and dosing practices of antiplatelet therapy and LMWH. METHODS: We conducted a descriptive, cross-sectional study of bleeding and thrombosis outcomes at Tygerberg Academic Hospital, Cape Town, South Africa, during the first COVID­19 wave, in 808 hospitalised patients with confirmed COVID­19 receiving LMWH with and without concomitant antiplatelet therapy. Multivariate logistic regression analysis was performed if predictors were deemed statistically and clinically significant. RESULTS: Patients receiving both LMWH and antiplatelet therapy had similar bleeding outcomes compared with patients only receiving LMWH (odds ratio (OR) 1.5; 95% confidence interval (CI) 0.6 - 4.0). Patients receiving both LMWH and antiplatelet therapy had increased odds of developing thrombosis compared with patients only receiving LMWH (OR 4.8; 95% CI 2.1 - 10.7). CONCLUSION: The bleeding risk in COVID­19 patients receiving both LMWH and antiplatelet therapy was not significantly increased. A potentially higher risk of thrombosis in patients receiving LMWH and antiplatelet therapy was observed. However, this could reflect confounding by indication. Randomised studies are required to further evaluate the use of antiplatelet therapy to treat hospitalised patients with COVID­19.


Asunto(s)
COVID-19 , Trombosis , Anticoagulantes/efectos adversos , Estudios Transversales , Heparina/efectos adversos , Heparina de Bajo-Peso-Molecular/efectos adversos , Humanos , Sudáfrica/epidemiología , Trombosis/epidemiología , Trombosis/etiología , Trombosis/prevención & control
7.
J Eur Acad Dermatol Venereol ; 36(3): 380-390, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-34779023

RESUMEN

The plethora of pharmacologic treatments used for periorificial dermatitis (POD) makes clinical decision-making challenging. The objectives of this review were to assess the efficacy and safety of pharmacological interventions for POD in children and adults. The search was performed on 2 February 2021 and included seven databases and trial registries, with no date or language restrictions Study selection, data extraction and risk of bias assessments were performed independently and in duplicate by two authors, in accordance with a prespecified protocol. Meta-analyses were performed and reported in accordance with PRISMA guidelines. Where meta-analysis was not possible, a narrative synthesis was performed and reported in accordance with SWiM guidelines. The certainty of evidence was assessed using the Grading of Recommendation, Assessment, Development and Evaluation approach. Eleven studies representing 733 participants were included. Oral tetracycline may improve physician-reported severity of POD from day 20 onwards (low certainty evidence). Adverse effects may include abdominal discomfort, facial dryness and pruritus. Pimecrolimus cream may improve physician-reported severity slightly after 4 weeks of treatment (MD -0.49, 95% CI -1.02 to 0.04, n = 164, low certainty evidence). Adverse effects may include erythema, herpes simplex virus infection, burning and pruritus. Azelaic acid gel may result in no change in either physician- or patient-reported severity after 6 weeks of treatment. The evidence is very uncertain about the effect of praziquantel ointment on physician-reported severity and skin-related quality of life after 4 weeks of treatment. The evidence is also very uncertain about the effect of topical clindamycin/benzoyl peroxide on physician-reported severity. The body of evidence to inform treatment of POD currently consists of low and very low certainty evidence for important outcomes. Well-designed trials are needed to further investigate treatment options. Data are required for children and from low-middle income countries to improve external validity. Future trials should also include adequate post-treatment follow-up and standardized outcome measures.


Asunto(s)
Dermatitis Perioral , Calidad de Vida , Adulto , Niño , Emolientes/uso terapéutico , Humanos , Prurito/tratamiento farmacológico
8.
S. Afr. med. j ; 112(7): 472-477, 2022. figures, tables
Artículo en Inglés | AIM (África) | ID: biblio-1378229

RESUMEN

Background. An increased incidence of thromboembolic events in hospitalised COVID­19 patients has been demonstrated despite the use of low-molecular-weight heparin (LMWH). Antiplatelet therapy prior to admission and early in the disease course has been hypothesised to be protective against thrombosis.Objectives. To describe the bleeding and thrombosis outcomes in hospitalised patients with confirmed COVID­19 receiving LMWH, with and without concomitant antiplatelet therapy. Secondary objectives were to explore predictors of bleeding and thrombosis outcomes, and dosing practices of antiplatelet therapy and LMWH.Methods. We conducted a descriptive, cross-sectional study of bleeding and thrombosis outcomes at Tygerberg Academic Hospital, Cape Town, South Africa, during the first COVID­19 wave, in 808 hospitalised patients with confirmed COVID­19 receiving LMWH with and without concomitant antiplatelet therapy. Multivariate logistic regression analysis was performed if predictors were deemed statistically and clinically significant.Results. Patients receiving both LMWH and antiplatelet therapy had similar bleeding outcomes compared with patients only receiving LMWH (odds ratio (OR) 1.5; 95% confidence interval (CI) 0.6 - 4.0). Patients receiving both LMWH and antiplatelet therapy had increased odds of developing thrombosis compared with patients only receiving LMWH (OR 4.8; 95% CI 2.1 - 10.7).Conclusion. The bleeding risk in COVID­19 patients receiving both LMWH and antiplatelet therapy was not significantly increased. A potentially higher risk of thrombosis in patients receiving LMWH and antiplatelet therapy was observed. However, this could reflect confounding by indication. Randomised studies are required to further evaluate the use of antiplatelet therapy to treat hospitalised patients with COVID­19.


Asunto(s)
Humanos , Masculino , Femenino , Trombosis , Inhibidores de Agregación Plaquetaria , COVID-19 , Hemorragia , Pacientes Internos
9.
S Afr J Surg ; 58(1): 37-42, 2020 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-32243114

RESUMEN

BACKGROUND: Trauma is a major public health issue and has an extensive burden on the health system in South Africa. Many trauma scoring systems have been developed to estimate trauma severity and predict mortality. The prediction of mortality between different trauma scoring systems have not been compared at district-level health facilities in South Africa. The objective was to compare four trauma scoring systems (injury severity score (ISS), revised trauma score (RTS), Kampala trauma score (KTS), trauma and injury severity score (TRISS)) in predicting mortality in trauma-related patients presenting to a district-level hospital in Cape Town. METHODS: A retrospective analysis of all trauma patients managed in the resuscitation unit of Khayelitsha Hospital during a six-month period. Logistic regression was done, and empirical cut-off points used to maximise sensitivity and specificity on receiver operating characteristic curves. The outcome was all-cause in-hospital mortality. RESULTS: In total, 868 participants were analysed after 50 were excluded due to missing data. The mean (± SD) age was 28 ± 11 years, 726 (83.6%) were males, and penetrating injuries (n = 492, 56.6%) dominated. The mortality rate was 5.2% (n = 45). TRISS was the best mortality predictor (c-statistic 0.93, sensitivity 90%, specificity 87%). All scoring systems had overlapping confidence intervals. CONCLUSION: TRISS, ISS, RTS and KTS performed equivocally in predicting mortality in trauma-related patients managed at a district-level facility. The appropriate scoring system should be the simplest one which can be practically implemented and will likely differ between facilities.


Asunto(s)
Hospitales de Distrito , Hospitales Urbanos , Índices de Gravedad del Trauma , Heridas no Penetrantes/mortalidad , Heridas Penetrantes/mortalidad , Adolescente , Adulto , Área Bajo la Curva , Femenino , Humanos , Masculino , Gravedad del Paciente , Curva ROC , Estudios Retrospectivos , Sudáfrica , Adulto Joven
10.
S Afr Med J ; 107(9): 745-746, 2017 08 25.
Artículo en Inglés | MEDLINE | ID: mdl-28875879

RESUMEN

Robust, reliable and transparent methodologies are necessary to ensure that clinical practice guidelines (CPGs) meet international criteria. In South Africa (SA) and other low- and middle-income countries, upskilling and training of individuals in the processes of CPG development is needed. Since de novo CPG development is time-consuming and expensive, new emerging CPG-development approaches (adopting, contextualising, adapting and updating existing good-quality CPGs) are potentially more appropriate for our context. These emerging CPG-development methods are either not included or sparsely covered in existing training opportunities. The SA Guidelines Excellence (SAGE) team has responded innovatively to the need for CPG training in SA. We have revised an existing SA course and developed an online, open-access CPG-development toolkit. This Guideline Toolkit is a comprehensive guideline resource designed to assist individuals who are interested in knowing how to develop CPGs. Findings from the SAGE project can now be implemented with this innovative CPG training programme. This level of CPG capacity development has the potential to influence CPG knowledge, development, practices and uptake by clinicians, managers, academics and policy-makers around the country.


Asunto(s)
Creación de Capacidad , Ciencia de la Implementación , Guías de Práctica Clínica como Asunto , Personal Administrativo , Países en Desarrollo , Guías como Asunto , Humanos , Internet , Médicos , Sudáfrica
11.
AIDS Behav ; 21(2): 470-480, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27714525

RESUMEN

Questions remain regarding optimal timeframes for asking about adherence in clinical care. We compared 4-, 7-, 14-, 30-, and 60-day timeframe missed dose items with viral load levels among 1099 patients on antiretroviral therapy in routine care. We conducted logistic and linear regression analyses examining associations between different timeframes and viral load using Bayesian model averaging (BMA). We conducted sensitivity analyses with subgroups at increased risk for suboptimal adherence (e.g. patients with depression, substance use). The 14-day timeframe had the largest mean difference in adherence levels among those with detectable and undetectable viral loads. BMA estimates suggested the 14-day timeframe was strongest overall and for most subgroups although findings differed somewhat for hazardous alcohol users and those with current depression. Adherence measured by all missed dose timeframes correlated with viral load. Adherence calculated from intermediate timeframes (e.g. 14-day) appeared best able to capture adherence behavior as measured by viral load.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Cumplimiento de la Medicación , Carga Viral , Adulto , Trastornos Relacionados con Alcohol/epidemiología , Terapia Antirretroviral Altamente Activa , Teorema de Bayes , Comorbilidad , Trastorno Depresivo/epidemiología , Femenino , Infecciones por VIH/sangre , Infecciones por VIH/epidemiología , Infecciones por VIH/virología , Humanos , Modelos Lineales , Modelos Logísticos , Masculino , Persona de Mediana Edad , Cuestionario de Salud del Paciente , Trastornos Relacionados con Sustancias/epidemiología , Encuestas y Cuestionarios , Factores de Tiempo
12.
HIV Med ; 18(5): 332-341, 2017 05.
Artículo en Inglés | MEDLINE | ID: mdl-27679418

RESUMEN

OBJECTIVES: The aim of the study was to examine the association between levels of past and current alcohol consumption and all-cause and liver-related mortality among people living with HIV (PLWH). METHODS: A prospective cohort study of 1855 PLWH in Baltimore, MD was carried out from 2000 to 2013. We ascertained alcohol use by (1) self-report (SR) through a computer-assisted self interview, and (2) medical record abstraction of provider-documented (PD) alcohol use. SR alcohol consumption was categorized as heavy (men: > 4 drinks/day or > 14 drinks/week; women: > 3 drinks/day or > 7 drinks/week), moderate (any alcohol consumption less than heavy), and none. We calculated the cumulative incidence of liver-related mortality and fitted adjusted cause-specific regression models to account for competing risks. RESULTS: All-cause and liver-related mortality rates (MRs) were 43.0 and 7.2 per 1000 person-years (PY), respectively. All-cause mortality was highest among SR nondrinkers with PD recent (< 6 months) heavy drinking (MR = 85.4 deaths/1000 PY) and lowest among SR moderate drinkers with no PD history of heavy drinking (MR = 23.0 deaths/1000 PY). Compared with SR moderate drinkers with no PD history of heavy drinking, SR nondrinkers and moderate drinkers with PD recent heavy drinking had higher liver-related mortality [hazard ratio (HR) = 7.28 and 3.52, respectively]. However, SR nondrinkers and moderate drinkers with a PD drinking history of > 6 months ago showed similar rates of liver-related mortality (HR = 1.06 and 2.00, respectively). CONCLUSIONS: Any heavy alcohol consumption was associated with all-cause mortality among HIV-infected individuals, while only recent heavy consumption was associated with liver-related mortality. Because mortality risk among nondrinkers varies substantially by drinking history, current consumption alone is insufficient to assess risk.


Asunto(s)
Consumo de Bebidas Alcohólicas/efectos adversos , Infecciones por VIH/complicaciones , Hepatopatías/mortalidad , Adulto , Baltimore/epidemiología , Femenino , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Análisis de Supervivencia
15.
Int J Tuberc Lung Dis ; 10(5): 565-70, 2006 May.
Artículo en Inglés | MEDLINE | ID: mdl-16704041

RESUMEN

SETTING: Alcohol use, tuberculosis (TB) drug resistance and human immunodeficiency virus (HIV) risk behavior are of increasing concern in Russian TB patients. DESIGN: A prevalence study of alcohol use and HIV risk behavior was conducted in a sample of 200 adult men and women admitted to TB hospitals in St Petersburg and Ivanovo, Russia. RESULTS: Of the subjects, 72% were men. The mean age was 41. Active TB was diagnosed using a combination of chest X-ray, sputum smears and sputum cultures. Sixty-two per cent met DSM-IV criteria for current alcohol abuse or dependence. Drug use was uncommon, with only two patients reporting recent intravenous heroin use. There was one case of HIV infection. The mean total risk assessment battery score was 3.4. Depression was present in 60% of the sample, with 17% severely depressed. Alcohol abuse/dependence was associated with an eight-fold increase in drug resistance (OR 8.58; 95% CI 2.09-35.32). Patients with relapsing or chronic TB were more likely to meet the criteria for alcohol abuse/dependence (OR 2.56; 95% CI 1.0-6.54). CONCLUSION: Alcohol use disorders are common in patients being treated for active TB, and are associated with significant morbidity. Additional surveys are needed to examine the relationship between alcohol use disorders and anti-tuberculosis drug resistance.


Asunto(s)
Trastornos Relacionados con Alcohol/epidemiología , Infecciones por VIH/epidemiología , Trastornos Relacionados con Sustancias/epidemiología , Tuberculosis Resistente a Múltiples Medicamentos/epidemiología , Adulto , Anciano , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Prevalencia , Medición de Riesgo , Factores de Riesgo , Federación de Rusia/epidemiología , Tuberculosis Resistente a Múltiples Medicamentos/diagnóstico , Tuberculosis Resistente a Múltiples Medicamentos/tratamiento farmacológico
16.
Mol Psychiatry ; 9(11): 998-1006, 2004 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-15197399

RESUMEN

The glucocorticoid component of the stress response has been the subject of intense scientific scrutiny because of the wide ranging pathological consequences resulting from excess glucocorticoid exposure, including mood and anxiety disorders, and cognitive impairment. Exposure to stress activates the hypothalamic-pituitary-adrenal (HPA) axis and the sympathetic adrenomedullary system, which are regulated by neuronal pathways, including the inhibitory GABAergic (gamma-aminobutyric acid) system. Approximately 60% of the variance in glucocorticod levels may be attributable to genetic individual differences. In the present study, 56 healthy subjects underwent genotyping to determine the influence of the T1521C single nucleotide polymorphism (SNP) in the GABA(A)alpha6 receptor subunit gene (GABRA6) on the hormonal and autonomic responses to psychological stress induced by the Trier Social Stress Test (TSST). Adrenocorticotropin (ACTH), cortisol, diastolic blood pressure, and mean blood pressure responses to the TSST were significantly greater in subjects homozygous for the T allele or heterozygous compared to subjects homozygous for the C allele. Behavioral data was collected employing the Revised NEO Personality Inventory (NEO PI-R); subjects homozygous for the C allele scored significantly lower on the Extraversion factor compared to subjects homozygous for the T allele or heterozygous. These results suggest that the T1521C polymorphism in the GABRA6 gene is associated with specific personality characteristics as well as a marked attenuation in hormonal and blood pressure responses to psychological stress.


Asunto(s)
Hidrocortisona/sangre , Personalidad/genética , Polimorfismo de Nucleótido Simple/genética , Receptores de GABA-A/genética , Estrés Psicológico/sangre , Estrés Psicológico/genética , Hormona Adrenocorticotrópica/sangre , Adulto , Sustitución de Aminoácidos/genética , Presión Sanguínea/genética , Femenino , Frecuencia de los Genes , Homocigoto , Humanos , Sistema Hipotálamo-Hipofisario/fisiopatología , Masculino , Sistema Hipófiso-Suprarrenal/fisiopatología , Subunidades de Proteína/genética , Valores de Referencia
17.
Neuropsychopharmacology ; 25(4): 537-47, 2001 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11557167

RESUMEN

Alcohol ingestion activates the autonomic nervous system and the hypothalamic-pituitary-adrenal axis. This study examined naltrexone effects on alcohol-induced increases in physiological responses and their association with alcohol liking. Using a within-subjects design, heavy drinking men (N = 19) were maintained on each of three naltrexone doses (0, 50, and 100 mg, p.o.) over an 8-day inpatient stay. Within each naltrexone dose, subjects had three alcohol challenge sessions (none, moderate, high) in random order. Autonomic, subjective and endocrine measurements were collected regularly prior to and following alcohol administration. High-dose alcohol ingestion increased heart rate, diastolic blood pressure, skin temperature, ACTH, cortisol and liking of drink effects; responses following the moderate alcohol dose were less consistent. Naltrexone significantly dampened alcohol-induced increases in heart rate, diastolic blood pressure, hormone levels and subjective liking of drink effects. This dampening of cardiovascular and hormonal responses may contribute to the therapeutic effectiveness of naltrexone for reducing alcohol liking and decreasing relapse in alcohol-dependent persons.


Asunto(s)
Depresores del Sistema Nervioso Central/farmacología , Etanol/farmacología , Hemodinámica/efectos de los fármacos , Sistema Hipotálamo-Hipofisario/fisiología , Naltrexona/farmacología , Antagonistas de Narcóticos/farmacología , Sistema Hipófiso-Suprarrenal/fisiología , Adulto , Consumo de Bebidas Alcohólicas/psicología , Presión Sanguínea/efectos de los fármacos , Depresores del Sistema Nervioso Central/sangre , Interacciones Farmacológicas , Etanol/sangre , Femenino , Frecuencia Cardíaca/efectos de los fármacos , Hormonas/sangre , Humanos , Sistema Hipotálamo-Hipofisario/efectos de los fármacos , Masculino , Persona de Mediana Edad , Sistema Hipófiso-Suprarrenal/efectos de los fármacos , Temperatura Cutánea/efectos de los fármacos
18.
Alcohol Clin Exp Res ; 25(8): 1134-9, 2001 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-11505044

RESUMEN

BACKGROUND: This study was designed to confirm our previous findings that nonalcoholic offspring from families with alcohol-dependent individuals have greater hypothalamic-pituitary-adrenal axis activation induced by opioid blockade compared with nonalcoholic subjects without a family history of alcohol dependence. METHODS: Sixty-four nonalcoholic subjects aged 18 to 25 years were enrolled in the protocol. Twenty-seven subjects were offspring from families with alcohol dependence and were designated as family history-positive subjects (FHP). Thirty-seven subjects were biological offspring of non-alcohol-dependent parents and were designated as family history-negative subjects (FHN). Subjects received naloxone hydrochloride (0, 50, 125, 375, and 500 microg/kg) in double-blind, randomized order; adrenocorticotropin (ACTH) and cortisol were monitored over 120 min. RESULTS: No hormone differences at baseline or during placebo administration were identified between FHP and FHN subjects. FHP subjects had greater ACTH and cortisol response to opioid receptor blockade induced by naloxone hydrochloride compared with FHN subjects. CONCLUSIONS: These observations confirm previous findings that differences in ACTH and cortisol dynamics between FHP and FHN subjects can be unmasked by opioid receptor blockade.


Asunto(s)
Glándulas Suprarrenales/efectos de los fármacos , Alcoholismo/genética , Hipotálamo/efectos de los fármacos , Naloxona/farmacología , Antagonistas de Narcóticos/farmacología , Hipófisis/efectos de los fármacos , Adolescente , Glándulas Suprarrenales/fisiopatología , Hormona Adrenocorticotrópica/sangre , Adulto , Alcoholismo/fisiopatología , Método Doble Ciego , Femenino , Humanos , Hidrocortisona/sangre , Hipotálamo/fisiopatología , Masculino , Naloxona/administración & dosificación , Antagonistas de Narcóticos/administración & dosificación , Hipófisis/fisiopatología , Placebos
19.
Drug Alcohol Depend ; 62(1): 9-17, 2001 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-11173163

RESUMEN

The present study examined predictors of participation and retention for patients treated at an urban, hospital-based outpatient substance abuse treatment clinic. All patients were interviewed using the Addiction Severity Index (ASI) at the time of admission. Based on lifetime diagnostic history of psychoactive substance abuse/dependence, patients (N=268) were classified as: alcohol-only, drug(s)-only, and alcohol+drug(s). Alcohol-only patients were significantly older, more likely to be Caucasian, married, have less than a high school education, and be employed than drug-only or alcohol/drug patients. Using multiple regression analysis, substance use status did not predict treatment participation and retention, whereas race, gender and employment composite score were significant predictors. Specifically, patients attended more sessions and remained in treatment longer if they were Caucasian, male and had a high employment composite score. These findings suggest that type of substance abuse may be overemphasized as a predictor of outpatient drug-free treatment retention, and that greater emphasis should be placed on tailoring treatment to patients' cultural, gender and vocational needs.


Asunto(s)
Empleo/psicología , Pacientes Ambulatorios/psicología , Cooperación del Paciente/psicología , Trastornos Relacionados con Sustancias/psicología , Adulto , Negro o Afroamericano , Empleo/estadística & datos numéricos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pacientes Ambulatorios/estadística & datos numéricos , Cooperación del Paciente/estadística & datos numéricos , Análisis de Regresión , Factores Sexuales , Factores Socioeconómicos , Trastornos Relacionados con Sustancias/terapia , Resultado del Tratamiento , Población Blanca
20.
Alcohol Clin Exp Res ; 24(8): 1276-86, 2000 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-10968668

RESUMEN

BACKGROUND: This paper reviews the literature on the identification and treatment of pregnant, alcohol-abusing women, with special emphasis on poor women who have access to treatment through Medicaid. METHODS: The paper discusses the gaps and controversies in the literature and suggests five priorities for future research. RESULTS: Studies that attempt to identify pregnant women who drink conclude that heavier drinkers enter prenatal care later than other women, that many health care providers fail to recognize alcohol abuse by pregnant women, and that research on screening techniques is still in the early stages. Treatment research suggests that comprehensive, holistic treatment approaches, as well as brief interventions and case management, have been successful in reducing prenatal alcohol use. Debate continues over whether treatment should be voluntary. CONCLUSIONS: The five areas identified as priorities for future research include (1) developing reliable and valid measures to identify alcohol abuse in pregnant women, (2) creating training programs for providers, (3) generating programs to reduce barriers to care, (4) determining which treatment programs are most successful, and (5) estimating the costs and benefits of various treatment approaches.


Asunto(s)
Alcoholismo , Complicaciones del Embarazo , Alcoholismo/diagnóstico , Alcoholismo/economía , Alcoholismo/terapia , Análisis Costo-Beneficio , Femenino , Humanos , Conocimiento , Cooperación del Paciente , Embarazo , Atención Prenatal
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