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1.
AIDS Behav ; 28(1): 72-92, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37768428

RESUMO

Identifying and then addressing barriers and leveraging facilitators is important to help increase pre-exposure prophylaxis (PrEP) use among Black women vulnerable to HIV acquisition. The present cross-sectional study examined what factors were associated with future plans to use PrEP, and general likelihood to use it among a convenience sample of 152 adult, Black cisgender women from three metropolitan areas in Texas. The final multivariable logistic regression model revealed that relationship status (aOR = 0.20, 95% CI: 0.05-0.73, p < 0.05), PrEP anticipated stigma (aOR = 0.29, 95% CI: 0.10-0.78, p < 0.05), perceived discrimination (aOR = 0.40, 95% CI: 0.21-0.78, p < 0.01) and interest in learning more about PrEP (aOR = 5.32, 95% CI: 2.60-10.9, p < 0.001) were associated with future plans to use PrEP. The final multivariable linear regression model with maximum likelihood estimation identified that perceived discrimination (ß=-0.24, SE: -0.38 - -0.10, p < 0.01), perceived HIV risk (ß = 0.33, SE: 0.18-0.49, p < 0.001), willingness to use PrEP with condoms (ß = 1.26, SE: 0.94-1.60, p < 0.001), and comfort communicating about PrEP with a provider (ß = 0.23, SE: 0.06-0.41, p < 0.01) were associated with general likelihood to use PrEP. Findings reveal key factors that warrant further attention and examination toward improving PrEP use within this population.


Assuntos
Infecções por HIV , Profilaxia Pré-Exposição , Adulto , Feminino , Humanos , Masculino , População Negra , Preservativos , Estudos Transversais , Infecções por HIV/epidemiologia , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Texas/epidemiologia
2.
AIDS Behav ; 27(7): 2328-2359, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36809490

RESUMO

Stated preference (SP) methods are increasingly being applied to HIV-related research and continuously provide researchers with health utility scores of select healthcare products or services that populations consider important. Following PRISMA guidelines, we sought to understand how SP methods have been applied in HIV-related research. We conducted a systematic review to identify studies meeting the following criteria: SP method is clearly stated, conducted in the United States, was published between 01/01/2012 and 02/12/2022, and included adults aged 18 and over. Study design and SP method application were also examined. We identified six SP methods (e.g., Conjoint Analysis, Discrete Choice Experiment) across 18 studies, which were categorized into one of two groups: HIV prevention and HIV treatment-care. Categories of attributes used in SP methods largely focused on: administration, physical/health effects, financial, location, access, and external influences. SP methods are innovative tools capable of informing researchers on what populations consider most beneficial when deciding on treatment, care, or prevention options for HIV.


Assuntos
Infecções por HIV , Preferência do Paciente , Adulto , Humanos , Estados Unidos/epidemiologia , Adolescente , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Atenção à Saúde , Comportamento de Escolha , Pesquisa sobre Serviços de Saúde
3.
AIDS Behav ; 26(2): 361-374, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34331608

RESUMO

Pre-exposure prophylaxis (PrEP) affords an opportunity to significantly reduce the risk of HIV infection among male couples. We used cross-sectional dyadic data from 382 concordant-negative male couples to examine demographic and relationship characteristics associated with current PrEP use, willingness to use PrEP in the future, and perceived ability to adhere to PrEP using Actor-Partner Independence Models. Few partnered men reported currently using PrEP (16.4%) and 57.7% of non-users reported being unlikely to use PrEP in the future. Actor and partner perceptions of PrEP stigma significantly reduced PrEP use and perceptions of willingness to use PrEP or the ability to adhere to PrEP, while perceiving a higher prevalence of HIV among men was associated with significant increases in PrEP use, willingness and perceived ability to adhere. Perceptions that more friends would support PrEP use were also significantly associated with increases in willingness and perceived ability to adhere to PrEP. Dyadic interventions are needed to provide couples the skills to communicate about HIV risk and prevention, and address myths around the protective effect of relationships against HIV acquisition.


Assuntos
Infecções por HIV , Profilaxia Pré-Exposição , Estudos Transversais , Infecções por HIV/prevenção & controle , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina , Humanos , Masculino , Aceitação pelo Paciente de Cuidados de Saúde , Parceiros Sexuais
4.
AIDS Behav ; 26(8): 2813-2824, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35194698

RESUMO

This paper reports the results of a randomized controlled trial (RCT) to assess the efficacy of Nexus, a telehealth delivered intervention that combines Couples' HIV counseling and testing (CHTC) with home-based HIV-testing, examining the impact of the intervention on the couples' formation and adherence to safer sexual agreements. Between 2016 and 2018, 424 couples were recruited online from the U.S and randomized to the intervention arm (a telehealth delivered CHTC session with two home HIV-testing kits) or a control arm (two home HIV-testing kits), with study assessments at baseline, 3 and 6 months. Outcomes were the formation and adherence to safer sexual agreements, dyadic discordance in sexual agreements, breakage of sexual agreements, and perceptions of PrEP. Couples in the intervention arm had significantly greater odds of reporting a safer sexual agreement (3 months OR 1.87, p-value 0.005, and 6 months OR 1.84, p-value 0.007), lower odds of reporting discordant sexual agreements at 6 months (OR 0.62, p-value 0.048), and a significantly lower odds of reporting breaking their sexual agreement (3 months OR 0.51, p-value 0.035, and 6 months OR 0.23, p-value 0.000). By 6 months, couples in the intervention arm were less likely to say PrEP was beneficial to one (RRR 0.33, P = 0.000) or both of them (RRR 0.29, P = 0.000) than being beneficial to neither of the partners. The high levels of acceptability and efficacy of the intervention demonstrate strong potential for the scale-up of this efficacious intervention that is delivered through a low-cost telehealth platform.


Assuntos
Infecções por HIV , Telemedicina , Quitinases , Aconselhamento/métodos , Infecções por HIV/diagnóstico , Infecções por HIV/prevenção & controle , Infecções por HIV/psicologia , Humanos , Masculino , Proteínas de Plantas , Parceiros Sexuais/psicologia
5.
Arch Sex Behav ; 51(5): 2549-2562, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-34799830

RESUMO

Between one to two-thirds of HIV infections among gay, bisexual, and other men who have sex with men are from primary partners, and there has been increased research attention focused on strategies to increase PrEP adoption among male couples. While there is evidence that partner support is a strong correlate of pre-exposure prophylaxis (PrEP) adoption, there has been a lack of attention on PrEP communication dynamics among male couples. In this paper, we build upon this literature through analysis of dyadic data from a large cross-sectional survey of 543 concordant sero-negative and serodiscordant male couples to examine individual and relationship factors associated with reports of partner communication around PrEP, comfort in discussing PrEP, and perceived partner-level support for PrEP use. PrEP use was relatively low (16.2%), and although 87.5% of men reported their partners would support their PrEP use, only 26.3% had talked to their partner recently about PrEP. PrEP communication and perceived support for PrEP were significantly negatively associated with PrEP stigma and stigma based on sexuality (i.e., internalized homophobia and enacted external stigma based on sexuality), while men with sexual agreements were more comfortable talking about PrEP with their partner. There is a need to adapt current interventions, or develop new dyadic interventions, that provide opportunities for male couples to talk and learn about PrEP together, as a potential pathway to engage them toward PrEP use.


Assuntos
Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Comunicação , Estudos Transversais , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Humanos , Masculino , Parceiros Sexuais , Apoio Social
6.
Arch Sex Behav ; 51(5): 2625-2640, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35639220

RESUMO

Web-based technology provides an unparalleled opportunity to increase access and uptake of couples-based HIV prevention interventions. e-Health HIV prevention interventions for US Black heterosexual couples have largely been understudied. To address this gap, we applied the Assessment Phase of the ADAPT-ITT Framework to investigate Black heterosexual couples' perspectives on an existing e-Health, couples-based HIV prevention intervention. Applying a qualitative descriptive approach, joint dyadic interviews were conducted with 28 Black heterosexual couples from three jurisdictions in New York State. Content dyadic analysis revealed three descriptive categories: perspectives of the toolkit intervention (sub-codes: perceived relevance, reactions to core components), recommendations to enhance intervention relevancy (sub-codes: tailoring to relationship type, adding new content), and lasting intervention considerations (sub-codes: toolkit usability and language use). Overall, couples found the toolkit intervention content and usability acceptable and reflected on its potential to build sexual and relationship health. Couples recommended to enhance toolkit adaptability for varied couple's motivation and types re-consider terms like sexual agreements, and include content to facilitate communication regarding sensitive topics (e.g., childhood sexual trauma, co-parenting, family planning) and other issues that may have more relevance to the experience of US Black persons (i.e., wealth building).


Assuntos
Infecções por HIV , Telemedicina , Criança , Infecções por HIV/prevenção & controle , Heterossexualidade , Humanos , New York , Comportamento Sexual , Parceiros Sexuais
7.
AIDS Res Ther ; 19(1): 28, 2022 06 26.
Artigo em Inglês | MEDLINE | ID: mdl-35754038

RESUMO

BACKGROUND: Pre-exposure prophylaxis (PrEP) represents a proven biomedical strategy to prevent HIV transmissions among men who have sex with men (MSM) in the United States (US). Despite the design and implementation of various PrEP-focus interventions in the US, aggregated evidence for enhancing PrEP uptake and adherence is lacking. The objective of this systematic review is to synthesize and evaluate interventions aimed to improve PrEP uptake and adherence among MSM in the US, and identify gaps with opportunities to inform the design and implementation of future PrEP interventions for these priority populations. METHODS: We followed the PRISMA guidelines and conducted a systematic review of articles (published by November 28, 2021) with a focus on PrEP-related interventions by searching multiple databases (PubMed, MEDLINE, Web of Science and PsycINFO). Details of PrEP interventions were characterized based on their socioecological level(s), implementation modalities, and stage(s) of PrEP cascade continuum. RESULTS: Among the 1363 articles retrieved from multiple databases, 42 interventions identified from 47 publications met the inclusion criteria for this review. Most individual-level interventions were delivered via text messages and/or apps and incorporated personalized elements to tailor the intervention content on participants' demographic characteristics or HIV risk behaviors. Interpersonal-level interventions often employed peer mentors or social network strategies to enhance PrEP adoption among MSM of minority race. However, few interventions were implemented at the community-, healthcare/institution- or multiple levels. CONCLUSIONS: Interventions that incorporate multiple socioecological levels hold promise to facilitate PrEP adoption and adherence among MSM in the US given their acceptability, feasibility, efficacy and effectiveness. Future PrEP interventions that simultaneously address PrEP-related barriers/facilitators across multiple socioecological levels should be enhanced with a focus to tackle contextual and structural barriers (e.g., social determinants of health, stigma or medical mistrust) at the community- and healthcare/institution-level to effectively promote PrEP use for MSM of color.


Assuntos
Fármacos Anti-HIV , Infecções por HIV , Profilaxia Pré-Exposição , Minorias Sexuais e de Gênero , Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/tratamento farmacológico , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Humanos , Masculino , Confiança , Estados Unidos
8.
Fam Process ; 61(4): 1541-1558, 2022 12.
Artigo em Inglês | MEDLINE | ID: mdl-34993953

RESUMO

The present study investigated the dyadic direct and indirect effects of enacted stigma on depressive symptoms via internalized homophobia and whether communal coping moderated the effects of enacted stigma on internalized homophobia and depressive symptoms. Hypotheses were tested using actor-partner interdependence models with a sample of 543 cisgender sexual minority male couples. Results showed both partners' enacted stigma experiences were associated with elevated levels of internalized homophobia via actor and partner effects. Internalized homophobia was only associated with elevated depressive symptoms via actor effects. Indirect effects analysis suggested that internalized homophobia mediated the actor and partner influence of enacted stigma on depressive symptoms. Communal coping moderated the direct effects of enacted stigma on internalized homophobia and attenuated the conditional indirect actor and partner effects of enacted stigma on depressive symptoms. Findings underscore the role of intimate relationship processes in understanding the impacts of enacted stigma on depressive symptoms.


En el presente estudio se investigaron los efectos diádicos directos e indirectos del estigma externo en los síntomas depresivos mediante la homofobia internalizada, y si el afrontamiento comunitario moderó los efectos del estigma externo en la homofobia internalizada y los síntomas depresivos. Se comprobaron hipótesis utilizando modelos de interdependencia actor-pareja con una muestra de 543 parejas masculinas cisgénero pertenecientes a minorías sexuales. Los resultaros indicaron que las experiencias de estigma externo de ambos integrantes de la pareja estuvieron asociadas con niveles elevados de homofobia internalizada mediante efectos en el actor y la pareja. La homofobia internalizada solo estuvo asociada con síntomas depresivos elevados mediante efectos en el actor. El análisis de efectos indirectos indicó que la homofobia internalizada medió la influencia del estigma externo del actor y la pareja en los síntomas depresivos. El afrontamiento comunitario moderó los efectos directos del estigma externo en la homofobia internalizada y atenuó los efectos condicionales indirectos del estigma externo en los síntomas depresivos del actor y la pareja. Los resultados subrayan el papel que desempeñan los procesos relacionales íntimos a la hora de comprender los efectos del estigma externo en los síntomas depresivos.


Assuntos
Depressão , Homofobia , Minorias Sexuais e de Gênero , Humanos , Masculino
9.
AIDS Behav ; 25(3): 732-747, 2021 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32918639

RESUMO

This systematic review provides an examination of the status of HIV/AIDS prevention interventions for Black, heterosexual women in the U.S. from 2012 to 2019. Using PRISMA guidelines, 28 interventions were identified. Over half of the interventions were: conducted in the southern region of the U.S.; evaluated using a randomized controlled trial; focused on adults; used a group-based intervention delivery; were behaviorally focused and theoretically driven. None included biomedical strategies of PrEP, nPEP, and TasP. Few interventions included adolescent or aging Black women; none included their sex/romantic partners. Future studies dedicated to addressing the specific needs of subpopulations of Black, heterosexual women may provide opportunities to expand and/or tailor current and future HIV/AIDS prevention interventions, including offering participants with options to choose which, and the level of involvement, of their sex/romantic partner(s) in their sexual health decision-making. While strides to improve HIV prevention efforts with Black, heterosexual women have occurred, more is needed.


Assuntos
Negro ou Afro-Americano/psicologia , Infecções por HIV/prevenção & controle , Assunção de Riscos , Adolescente , Adulto , Feminino , Infecções por HIV/etnologia , Infecções por HIV/transmissão , Conhecimentos, Atitudes e Prática em Saúde , Heterossexualidade , Humanos , Ensaios Clínicos Controlados Aleatórios como Assunto , Estados Unidos/epidemiologia
10.
AIDS Care ; 33(9): 1209-1217, 2021 09.
Artigo em Inglês | MEDLINE | ID: mdl-32844670

RESUMO

The early stages of gay and bisexual men's relationships are a critical period for communicating about HIV prevention strategies. This study sought to: (1) explore facilitators to decision-making to use prevention strategies and (2) describe the prevention strategies being used by same-gender male couples in new relationships. Individual interviews were conducted with 76 partnered men, representing 37 couples and 2 individuals. Couples had been together for one year or less, and varied by U.S. geographical region of residence and HIV serostatus: 8 seroconcordant positive, 17 seroconcordant negative, and 13 serodiscordant couples. Two overarching qualitative themes emerged: (1) communication and (2) information and resources. Notably, few couples had both partners mention the same facilitator. The most commonly used HIV prevention strategies were treatment as prevention for partners in seroconcordant positive and serodiscordant couple relationships, and HIV/STI testing for partners of seroconcordant negative couples. Compared to the other two couple groups, fewer seroconcrdant negative couples were aware of each other's use of strategies. Study findings suggest these facilitators are important to include in future interventions. Efforts are also needed to improve within-dyad awareness about which strategies partners are using and how they may best support one another toward their sexual health goals.


Assuntos
Infecções por HIV , Infecções Sexualmente Transmissíveis , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Humanos , Masculino , Homens , Comportamento Sexual , Parceiros Sexuais , Estados Unidos
11.
J Vasc Interv Radiol ; 31(8): 1216-1220, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32682710

RESUMO

PURPOSE: To retrospectively analyze and compare the incidence of diarrhea in patients who underwent cryoablation of the celiac plexus for intractable abdominal pain versus ethanol therapy over a 5-year period. MATERIALS AND METHODS: From June 2014 to August 2019, 83 patients were identified who underwent neurolysis of the celiac plexus for management of intractable abdominal pain by using either cryoablation (n = 39 [59% female; age range, 36-79 years old [average, 60 ± 11 years old]) or alcohol (n = 44 [48% female; age range, 29-76 years old [average, 60 ± 12 years old]). Pain scores and reports of procedure-related complications or side effects, with special attention to diarrhea and/or other gastrointestinal symptoms, were collected from follow-up visits at 1 week, 1 month, and 3 months post-intervention and were compared between groups. RESULTS: The mean time of follow-up was 17.7 days. Four patients who underwent cryoablation developed gastrointestinal symptoms consisting of 2 cases of nausea and vomiting and 2 cases of diarrhea (5.1%). Twelve patients who underwent ethanol ablation developed gastrointestinal symptoms, including 1 case of nausea, 3 cases of vomiting, and 9 cases of diarrhea (20.5%). There was a significantly higher incidence of both diarrhea (chi-squared likelihood ratio, P = .03) and overall gastrointestinal symptoms (chi-squared likelihood ratio, P = .04) in the ethanol group than in the cryoablation group. CONCLUSIONS: Cryoablation of the celiac plexus may provide a new treatment option for intractable abdominal pain, and it appears to have a lower incidence of diarrhea and fewer gastrointestinal side effects than ablation using ethanol.


Assuntos
Dor Abdominal/cirurgia , Plexo Celíaco/cirurgia , Criocirurgia , Etanol/administração & dosagem , Dor Intratável/cirurgia , Radiografia Intervencionista , Tomografia Computadorizada por Raios X , Dor Abdominal/diagnóstico , Dor Abdominal/epidemiologia , Adulto , Idoso , Plexo Celíaco/diagnóstico por imagem , Plexo Celíaco/fisiopatologia , Criocirurgia/efeitos adversos , Diarreia/epidemiologia , Etanol/efeitos adversos , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Medição da Dor , Dor Intratável/diagnóstico , Dor Intratável/epidemiologia , Radiografia Intervencionista/efeitos adversos , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Tomografia Computadorizada por Raios X/efeitos adversos , Resultado do Tratamento
12.
AIDS Behav ; 24(6): 1835-1850, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31823111

RESUMO

We pilot tested the Status Update Project (SUP) mobile app intervention to promote repeat HIV testing among HIV-negative US MSM. Participants (Mean age = 29 years; 51% racial/ethnic minority; 63% single) who were eligible and enrolled were randomized to either the SUP mobile app or a no-treatment condition, with assessments at baseline and month 4 and 8. Eighty-three percent of men were retained at the 8-month follow up. Among men randomized to the SUP arm, the app's ease and simplicity, health information, HIV testing locator, and HIV test reminders were most liked. At month 4, men randomized to the SUP arm were more likely to be repeat testers compared to those in the control arm (RR = 4.4; 95% CI 0.9, 19.9), although differences diminished by month 8 (RR = 1.2; 95% CI 0.8, 2.0). These findings add to our understanding of how mHealth interventions may play an important role in encouraging repeat HIV testing among MSM.


Assuntos
Infecções por HIV , Homossexualidade Masculina , Aplicativos Móveis , Minorias Sexuais e de Gênero , Adulto , Etnicidade , Estudos de Viabilidade , Infecções por HIV/diagnóstico , Infecções por HIV/prevenção & controle , Humanos , Masculino , Grupos Minoritários
13.
AIDS Behav ; 23(7): 1749-1770, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-30306434

RESUMO

PrEP is an important and useful HIV prevention strategy, yet awareness remains low among at-risk populations in the United States and elsewhere in the world. As previous studies have shown PrEP awareness to be important to PrEP uptake, understanding approaches to increase PrEP awareness is imperative. The current systematic review provides an overview of published articles and on-going research on PrEP awareness. Using PRISMA guidelines, two published articles and seven on-going research studies were identified that use different approaches to increase PrEP awareness. Findings highlight the need for research to target other at-risk populations and geographic areas. Future research should consider the use of technology and network approaches to assess whether they lead to increased awareness, accurate knowledge, and uptake of PrEP, along with examining which messaging works best for specific targeted, at-risk population(s).


Assuntos
Fármacos Anti-HIV/uso terapêutico , Infecções por HIV/prevenção & controle , Educação em Saúde/métodos , Conhecimentos, Atitudes e Prática em Saúde , Profilaxia Pré-Exposição , Comportamento Sexual/estatística & dados numéricos , Educação em Saúde/estatística & dados numéricos , Humanos , Aceitação pelo Paciente de Cuidados de Saúde , Profilaxia Pré-Exposição/estatística & dados numéricos , Estados Unidos
14.
AJR Am J Roentgenol ; 210(2): 454-465, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29220211

RESUMO

OBJECTIVE: The aim of this article is to review the available evidence regarding image-guided percutaneous cryoneurolysis, with a focus on indications, technique, efficacy, and potential complications. CONCLUSION: Percutaneous image-guided cryoneurolysis is safe and effective for the management of several well-described syndromes involving neuropathic pain. Additional rigorous prospective study is warranted to further define the efficacy and specific role of these interventions.


Assuntos
Criocirurgia/métodos , Imagem por Ressonância Magnética Intervencionista , Neuralgia/cirurgia , Manejo da Dor/métodos , Doenças do Sistema Nervoso Periférico/cirurgia , Tomografia Computadorizada por Raios X , Ultrassonografia de Intervenção , Humanos , Neuralgia/diagnóstico por imagem , Medição da Dor , Doenças do Sistema Nervoso Periférico/diagnóstico por imagem , Resultado do Tratamento
15.
Arch Sex Behav ; 46(4): 1069-1077, 2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-27511208

RESUMO

Many HIV-negative male couples establish a sexual agreement to help manage their HIV risk; however, less is known about their decisions about testing in this context. The present study examined whether male couples discussed HIV testing and explored their decisions about testing in the context of their sexual agreement at the individual- and couple-levels. Qualitative dyadic interview data were collected from 29 HIV-negative male couples with a sexual agreement who resided in Atlanta or Detroit; the sample was stratified by agreement type. Content analysis revealed male couples' decisions about HIV testing as routine, self-assurance, reliance and assumption on partner, beginning of relationship testers, and/or trust; decisions varied between partners and by agreement type. Findings suggest prevention efforts should help male couples integrate HIV testing into their sexual agreement that matches their agreement type and associated HIV-related risk behavior, and help shift their one-sided decisions about testing to a couple's mutually shared decision.


Assuntos
Infecções por HIV , Homossexualidade Masculina , Adulto , Idoso , Infecções por HIV/diagnóstico , Infecções por HIV/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Homossexualidade Masculina/psicologia , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Masculino , Pessoa de Meia-Idade , Assunção de Riscos , Comportamento Sexual , Adulto Jovem
16.
J Comput Assist Tomogr ; 41(1): 141-147, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27560016

RESUMO

OBJECTIVE: To evaluate image quality (IQ) of a reduced contrast volume, low kilovolt (peak) [kV(p)] abdominopelvic computed tomographic angiography (AP-CTA) protocol compared to a standard 120-kV(p) AP-CTA protocol. METHODS: A retrospective image analysis was performed on 103 patients with end-stage renal disease who underwent AP-CTA. Forty-nine patients were scanned at 80 kV(p) with a mean of 48 mL of contrast, and 54 patients were scanned at 120 kV(p) with a mean of 98 mL of contrast. Objective comparison of arterial attenuation, noise, and contrast-to-noise ratio was obtained, in addition to radiation dose. Subjective assessment of IQ, enhancement intensity, and image noise (IN) was scored on a 3-point scale. RESULTS: The 6-level aggregate contrast-to-noise ratio for the 80-kV(p) group was 11.8 ± 7.0, compared to 12.4 ± 4.6 in the 120-kV(p) group (P = 0.210). Radiation exposure was significantly lower in the 80-kV(p) group versus the 120-kV(p) group, as measured by average CT dose index (mGy) of 9.0 ± 3.1 and 15.8 ± 5.8 (P < 0.0001), respectively; and average dose length product (mGy × cm) of 490.0 ± 214.1 and 863.1 ± 344.4 (P < 0.0001), respectively. The 120-kV(p) technique scored better for subjective IQ (P = 0.042) and IN (P = 0.004) but not for enhancement intensity (P = 0.205). CONCLUSIONS: A 50% reduced iodinated contrast dose coupled with 80-kV(p) technique with iterative reconstruction allows for satisfactory AP-CTA studies at a 43% mean radiation dose reduction compared to a standard protocol. Negative but potentially reversible sequelae of this drop in radiation dose include increased IN and reduced subjective IQ.


Assuntos
Azotemia/diagnóstico por imagem , Angiografia por Tomografia Computadorizada/métodos , Iodo/administração & dosagem , Nefropatias/diagnóstico por imagem , Pelve/diagnóstico por imagem , Exposição à Radiação/prevenção & controle , Meios de Contraste/administração & dosagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pelve/irrigação sanguínea , Doses de Radiação , Exposição à Radiação/análise , Radiografia Abdominal/métodos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Sensibilidade e Especificidade
17.
J Adv Nurs ; 73(7): 1583-1603, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27906471

RESUMO

AIM: The aim of this study was to examine the components and use of negotiated safety in the context of HIV prevention and to identify reported factors associated with the concept. BACKGROUND: There is an emerging interest in dyadic approaches to address HIV transmission. Although there are theoretical foundations for how interpersonal relationships influence individual behaviour, how these dyadic processes influence on health is still not wholly understood. DESIGN: Integrative review of empirical and theoretical literature. DATA SOURCES: The Cumulative Index for Nursing and Allied Health Literature (CINAHL) MEDLINE and PsychINFO electronic databases were accessed. REVIEW METHODS: Articles were read to gain a historical context of the term and identify varying interpretations of the concept. Factors warranting consideration in association with NS were identified and clinical and public health implications were noted. RESULTS: Forty-eight studies were reviewed. Negotiated safety included the following components: (i) HIV sero-negative concordant men within a primary relationship; (ii) joint HIV screening and mutual disclosure of their HIV status; (iii) explicit relationship boundaries which establish either nonexclusively that allows for the dispensing of condoms within the primary relationship and consistent condom use for extra-dyadic sex; or dispensing of condoms within a primary partnership and exclusivity; and (iv) a breach clause that allows communication to re-establish the agreement if needed. CONCLUSION: Negotiated safety is a prescriptive approach to HIV risk reduction among couples. Researchers and practitioners could benefit from promoting this approach to HIV prevention.


Assuntos
Infecções por HIV/prevenção & controle , Negociação , Segurança , Feminino , Infecções por HIV/transmissão , Humanos , Masculino
19.
AIDS Behav ; 20(3): 667-78, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26223222

RESUMO

Although substance use is linked to HIV seroconversion, little is known about male couples substance use with sex. The present study sought to: describe whether neither, one, or both partners in the couple used a particular substance with sex within or outside their relationship; assess, by substance type used with sex, whether relationship factors differed between these groups of couples. Dyadic data from 83 behaviorally non-monogamous HIV-negative male couples were used with multinomial regression models. Those who used with sex within the relationship varied by substance type; outside the relationship, most only had one partner who used with sex. Couples with one or both partners who used substances with sex within or outside the relationship were more likely to have higher commitment to their relationship yet less likely to trust their main partner; mixed results were found regarding communication. Further research is warranted toward the need for preventive intervention development.


Assuntos
Soronegatividade para HIV , Homossexualidade Masculina/estatística & dados numéricos , Relações Interpessoais , Comportamento Sexual/estatística & dados numéricos , Parceiros Sexuais , Transtornos Relacionados ao Uso de Substâncias/psicologia , Sexo sem Proteção/estatística & dados numéricos , Adulto , Comunicação , Preservativos/estatística & dados numéricos , Estudos Transversais , Características da Família , Homossexualidade Masculina/psicologia , Humanos , Masculino , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Confiança , Sexo sem Proteção/psicologia
20.
AIDS Behav ; 20(12): 2904-2913, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-26979417

RESUMO

Few studies have examined actor-partner effects about male couples' substance use with sex. Dyadic data from 361 male couples were used to examine these effects regarding engagement in condomless anal sex (CAS) by type of partner and substance. Couples with one or both partners reported using marijuana, amyl nitrates, party drugs, and/or stimulants with sex in their relationship was positively associated with them having had CAS. Actor-partner effects for stimulant use with sex with the main partner were associated with CAS with a casual MSM partner. Only an actor effect for stimulant use with sex with a casual MSM partner was associated with CAS with that partner type, and an actor effect for marijuana use with sex for both partner types was associated with CAS with both partner types. These findings illuminate the need for further inquiry about male couples' substance use with sex for HIV prevention.


Assuntos
Infecções por HIV/prevenção & controle , Infecções por HIV/transmissão , Homossexualidade Masculina/psicologia , Homossexualidade Masculina/estatística & dados numéricos , Drogas Ilícitas , Comportamento Sexual/psicologia , Comportamento Sexual/estatística & dados numéricos , Parceiros Sexuais/psicologia , Transtornos Relacionados ao Uso de Substâncias/epidemiologia , Transtornos Relacionados ao Uso de Substâncias/psicologia , Sexo sem Proteção/psicologia , Sexo sem Proteção/estatística & dados numéricos , Adulto , Preservativos/estatística & dados numéricos , Infecções por HIV/psicologia , Humanos , Masculino , Comportamento Sexual/efeitos dos fármacos , Inquéritos e Questionários , Sexo sem Proteção/efeitos dos fármacos , Adulto Jovem
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