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1.
J Am Coll Radiol ; 21(4): 567-575, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-37473855

RESUMO

OBJECTIVE: Compare the cost of performing an osteoid osteoma ablation using cone beam CT (CBCT) with overlay fluoroscopic guidance to ablation using conventional CT (CCT) guidance and microwave ablation (MWA) to radiofrequency ablation (RFA). METHODS: An 11-year retrospective study was performed of all patients undergoing osteoid osteoma ablation. Ablation equipment included a Cool tip RFA probe (Covidien, Minneapolis, Minnesota) or a Neuwave PR MWA probe (Ethicon, Rariton, New Jersey). The room times as well as immediate recovery time were recorded for each case. Cost analysis was then performed using time-driven activity-based costing for rate-dependent variables including salaries, equipment depreciation, room time, and certain supplies. Time-independent costs included the disposable interventional radiology supplies and ablation systems. Costs were reported for each service providing care and using conventional cost accounting methods with variable and fixed expenditures. RESULTS: A total of 91 patients underwent 96 ablation procedures in either CBCT (n = 66) or CCT (n = 30) using either MWA (n = 51) or RFA (n = 45). The anesthesia induction (22.7 ± 8.7 min versus 15.9 ± 7.2 min, P < .001), procedure (64.7 ± 27.5 min versus 47.3 ± 15.3 min; P = .001), and room times (137.7 ± 33.7 min versus 103.9 ± 22.6. min; P < .001) were significantly longer for CBCT procedures. The procedure time did not differ significantly between MWA and RFA (62.1 ± 27.4 min versus 56.1 ± 23.3 min; P = .27). Multiple regression analysis demonstrated lower age (P = .046), CBCT use (P = .001), RFA use (P = .02), and nonsupine patient position (P = .01) significantly increased the total procedural cost. After controlling for these variables, the total cost of CBCT ($5,981.32 ± $523.93 versus $5,378.93 ± $453.12; P = .001) remained higher than CCT and the total cost of RFA ($5,981.32 ± $523.93 versus $5,674.43 ± $549.14; P = .05) approached a higher cost than MWA. CONCLUSION: The use of CBCT with overlay fluoroscopic guidance for osteoid osteoma ablation resulted in longer in-room times and greater cost when compared with CCT. These cost considerations should be weighed against potential radiation dose advantage of CBCT when choosing an image guidance modality. Younger age, RFA use, and nonsupine patient position additionally contributed to higher costs.


Assuntos
Técnicas de Ablação , Neoplasias Ósseas , Ablação por Cateter , Osteoma Osteoide , Humanos , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/cirurgia , Osteoma Osteoide/diagnóstico por imagem , Osteoma Osteoide/cirurgia , Estudos Retrospectivos , Ablação por Cateter/métodos , Custos e Análise de Custo , Resultado do Tratamento
2.
Toxicon ; 218: 40-46, 2022 Oct 30.
Artigo em Inglês | MEDLINE | ID: mdl-36096207

RESUMO

Txp40 is a ubiquitous toxin from Xenorhabdus and Photorhabdus bacteria, exhibits insecticidal activity against a wide range of insect pests belonging to Lepidoptera and Diptera orders. Initially, Txp40 affects midgut of the target insect and further damages some other tissues like fat bodies but the detailed mode of action is not known. Txp40 shares no significant sequence match to any proteins with known structure or function, suggesting that it is a novel type of insecticidal toxin. Here, we report purification, toxicity and biophysical characterization of the Txp40b toxin from X. nematophila (ATCC, 19061). The recombinant Txp40b was found toxic to Galleria mellonella larvae with LD50 of 30.42 ng larva-1. Circular dichroism spectroscopy revealed that purified Txp40b is an α-helix rich protein with a relatively lower melting temperature of 45 °C. In-silico model generated suggests two domain structure of Txp40b toxin. Detailed structural analysis of Txp40b will provide new insights about the mode of action and possibly it would illustrate a new domain and/or motif in the area of insecticidal proteins.


Assuntos
Inseticidas , Mariposas , Photorhabdus , Toxinas Biológicas , Xenorhabdus , Animais , Proteínas de Bactérias/química , Insetos , Inseticidas/química , Larva/metabolismo , Mariposas/metabolismo , Photorhabdus/metabolismo , Toxinas Biológicas/metabolismo , Xenorhabdus/química
3.
J Invertebr Pathol ; 194: 107829, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36167186

RESUMO

Photorhabdus insect related proteins A & B (PirA, PirB) from Photorhabdus and Xenorhabdus bacteria exhibit both oral and injectable toxicity against lepidopteran and dipteran insect pest. The pirA, pirAt (encoding 6 N-terminal truncated PirA), pirB genes, pirA-pirB (with ERIC sequences), pirA-pirB-mERIC (modified pirA-pirB with mutated ERIC sequences) and polycistronic-pirAB were cloned and expressed in Escherichia coli. However, PirA protein was expressed in insoluble form and therefore the pirA gene was modified to produce PirAt. Moreover, pirA-pirB-mERIC, polycistronic-pirAB and co-transformed pirA/pirB genes were not expressed in the studied prokaryotic expression systems. None of the single purified proteins or mixtures of the individually expressed and purified proteins were toxic to mosquito larvae of Aedes aegypti and Culex quinquefasciatus. However, PirA-PirB protein mixtures purified from pirA-pirB operon plasmid were toxic to A. aegypti and C. quinquefasciatus larvae with LC50 values of 991 and 614 ng/ml, respectively. The presence of ERIC sequences between the two orfs of the pirA-pirB operon could help to obtain the proteins in biologically active form. Further, results confirm that PirA-PirB proteins of P. akhurstii subsp. akhurstii K-1 are binary insecticidal toxins and ERIC sequences could play an important role in expression of Pir proteins. Reports of biophysical characterization of individually purified PirAt, PirB and expressed PirA-PirB toxin mixture could provide the structural insight into these proteins.


Assuntos
Toxinas Bacterianas , Photorhabdus , Xenorhabdus , Animais , Proteínas de Bactérias/química , Toxinas Bacterianas/química , Toxinas Bacterianas/genética , Toxinas Bacterianas/toxicidade , Escherichia coli , Proteínas de Insetos/metabolismo , Larva/metabolismo , Photorhabdus/metabolismo , Xenorhabdus/genética , Xenorhabdus/metabolismo
4.
Pediatr Radiol ; 52(12): 2377-2387, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35670843

RESUMO

BACKGROUND: Chronic recurrent multifocal osteomyelitis (CRMO) is a diagnosis of exclusion, relying heavily on whole-body magnetic resonance imaging (WB-MRI) for diagnosing and evaluating response to therapy. Information with respect to disease distribution and imaging correlation with clinical disease severity at initial presentation is lacking. OBJECTIVE: To retrospectively characterize distribution of disease on WB-MRI and to correlate imaging findings with disease severity at initial rheumatology presentation. MATERIALS AND METHODS: Using a modified version of a recently devised imaging-based scoring system, we evaluated disease distribution and correlation between findings on WB-MRI and clinical disease severity in 54 patients presenting for initial evaluation of CRMO. Symptomatic lesion sites were extracted from chart review and physician global assessment was determined by the consensus of two rheumatologists. RESULTS: Sites of CRMO involvement evident on imaging at initial presentation had a strong predilection for the pelvis and lower extremities. There was significant correlation between the number of lesions detected on WB-MRI and total clinical severity score at initial rheumatology presentation (P<0.01). However, no other imaging parameter correlated with disease severity. CONCLUSION: While the overall number of lesions identified on MRI correlates with clinical severity scores at initial imaging, other MR parameters of CRMO lesions may not be reliable indicators of disease severity at initial presentation. Further research is needed to assess whether these parameters are implicated in longitudinal disease severity or overall response to therapy.


Assuntos
Osteomielite , Imagem Corporal Total , Criança , Humanos , Imagem Corporal Total/métodos , Imageamento por Ressonância Magnética/métodos , Estudos Retrospectivos , Recidiva , Osteomielite/diagnóstico por imagem
5.
Pediatr Radiol ; 52(9): 1648-1657, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-34549315

RESUMO

Brachial plexus birth injury can lead to irreversible neuromuscular dysfunction and skeletal deformity of the upper extremity and shoulder girdle, ultimately resulting in glenohumeral dysplasia. Diagnosis and treatment of affected infants requires a multi-disciplinary approach in which imaging plays a vital role. While MRI is excellent for assessing both the shoulder and spine of these children, it is costly and requires sedation and is thus typically reserved for preoperative planning. US, however, is inexpensive, dynamic and readily available and provides excellent visualization of the largely cartilaginous glenohumeral joint. As such, it has become a highly useful modality during early diagnosis and follow-up of children with brachial plexus birth injuries. In this review, we describe the relevant anatomy of the glenohumeral joint, outlining the normal sonographic appearance as well as providing tips and tricks for identifying and characterizing pathology.


Assuntos
Traumatismos do Nascimento , Neuropatias do Plexo Braquial , Artropatias , Osteocondrodisplasias , Articulação do Ombro , Deformidades Congênitas das Extremidades Superiores , Criança , Humanos , Lactente , Imageamento por Ressonância Magnética , Articulação do Ombro/diagnóstico por imagem , Ultrassonografia
7.
J Vasc Interv Radiol ; 32(10): 1479-1487, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-34358685

RESUMO

PURPOSE: To compare the direct bundled costs of interventional radiology (IR) suite versus bedside placement of noncuffed central venous catheters in infants. METHODS: A single-center retrospective review was performed of all noncuffed upper extremity (peripherally inserted central venous catheter [PICC]) and tunneled femoral (tunneled femoral central venous catheter [TCVC]) catheters placed in infants between January 1, 2018, and December 31, 2018. Propensity score matching was performed adjusting for age, birth weight, procedure weight, and catheter days. Process maps for each procedure were created based on location and sedation type. Technical success and complications were recorded for each placement. The total direct bundled cost for each catheter placement was calculated by summing the procedure and complication costs. RESULTS: A total of 142 procedures were performed on 126 matched patients with a technical success of 96% at the bedside and 100% in the IR suite (P = .08). The complication rates did not significantly differ between the 2 groups (P = .51). The total direct bundled costs for catheter placement were $1421.3 ± 2213.2 at the bedside and $2256.8 ± 3264.7 in the IR suite (P = .001). CONCLUSIONS: The bundled cost of bedside femoral catheter placement is significantly less than that of fluoroscopic TCVC and PICC placement performed in the IR suite, mainly related to differences in sedation costs.


Assuntos
Cateterismo Venoso Central , Cateterismo Periférico , Cateteres Venosos Centrais , Cateterismo Venoso Central/efeitos adversos , Cateterismo Periférico/efeitos adversos , Custos e Análise de Custo , Humanos , Lactente , Radiologia Intervencionista , Estudos Retrospectivos
8.
J Appl Genet ; 62(4): 571-583, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34247322

RESUMO

As a prelude to exploit DNA methylation-induced variation, we hypothesized the existence of substantial natural DNA methylation variation and its association with economically important traits in dolichos bean, and tested it using amplified methylation polymorphism-polymerase chain reaction (AMP-PCR) assay. DNA methylation patterns such as internal, external, full and non-methylation were amplified in a set of 64 genotypes using 26 customized randomly amplified polymorphic DNA (RAPD) primers containing 5'CCGG3' sequence. The 64 genotypes included 60 germplasm accessions (GA), two advanced breeding lines (ABLs) and two released varieties. The ABLs and released varieties are referred to as improved germplasm accessions (IGA) in this study. The association of DNA methylation patterns with economically important traits such as days to 50% flowering, raceme length, fresh pods plant-1, fresh pod yield plant-1 and 100-fresh seed weight was explored. At least 50 genotypes were polymorphic for DNA methylation patterns at 10 loci generated by seven of the 26 RAPD primers. The GA and IGA differed significantly for total, full and external methylation and the frequency of methylation was higher in GA compared to that in IGA. The genotypes with external methylation produced longer racemes than those with full, internal and non-methylation in that order at polymorphic RAPD-11-242 locus. High pod yielding genotypes had significantly lower frequency of full methylation than low yielding ones. On the contrary, the genotypes that produced heavier fresh seeds harboured higher frequencies of total and externally methylated loci than those that produced lighter fresh seeds.


Assuntos
Dolichos , Metilação de DNA , Variação Genética , Melhoramento Vegetal , Reação em Cadeia da Polimerase , Técnica de Amplificação ao Acaso de DNA Polimórfico
9.
Indian Heart J ; 72(6): 589-592, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33357650

RESUMO

OBJECTIVE: To estimate the incidence of major adverse cardiovascular events (MACE) with genotype test-guided antiplatelet therapy in patients undergoing percutaneous coronary intervention (PCI) for acute coronary syndrome. METHODS: Patients who had undergone PCI for acute coronary syndrome as well as stable coronary artery disease were recruited. Salivary samples were obtained from these patients and genotyped for CYP2C19∗2, CYP2C19∗3 variations by sequencing method (GAAP x method). Patients were categorized as normal (GG, GG) (29%), intermediate (AG) (52%) or poor metabolizes (homozygous variant AA) (19%). Dual antiplatelets were given based on the genotyping data. Poor metabolizes received newer agent (ticagrelor), intermediate metabolizes received double-dose of clopidogrel and normal metabolizes received therapeutic doses of clopidogrel. All subjects were followed-up for six months. RESULTS: Based on the genotyping data of CYP2C19∗2 and CYP2C19∗3 variations, it was found that most patients were categorized as 'intermediate' (78, 51.65%), followed by 'normal' (43, 28.48%) and 'poor' metabolizes (30, 19.87%). Only 3 (1.5%) of 151 patients reported MACE at follow-up. CONCLUSIONS: Genotyping for CYP2C19 variations to assess clopidogrel resistance in patients undergoing PCI and subsequent drug selection helps reduce MACE after coronary intervention.


Assuntos
Síndrome Coronariana Aguda/cirurgia , Inibidores da Agregação Plaquetária/uso terapêutico , Cuidados Pós-Operatórios/métodos , Complicações Pós-Operatórias/epidemiologia , Medicina de Precisão/métodos , Feminino , Seguimentos , Genótipo , Humanos , Incidência , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/tratamento farmacológico , Estudos Prospectivos , Fatores de Risco
10.
Artigo em Inglês | MEDLINE | ID: mdl-31441441

RESUMO

Bhutan, a landlocked country in the eastern Himalayas with some of the most rugged and mountainous terrain in the world, is actively engaged in digital health strategy reforms aimed at improving the efficiency of the health information system. Aligned with Bhutan's e-Government master plan, the National eHealth strategy and action plan aims to improve health by empowering health-care providers and citizens through technology and by enabling data exchange for service delivery. The strategy has four primary areas of focus: (i) ensuring digital health governance arrangements; (ii) concentrating on strong foundations in terms of infrastructure and standards; (iii) prioritizing improvements in the current health system in a phased, selective manner; and (iv) building the digital skills and knowledge of health workers. With support from the Asian Development Bank and the World Health Organization, phase 1 of the strategy has been completed and the blueprint for the digital health information system is in development. Phase 2 of the strategy will be implemented during 2020­2023 and will include work on (i) identity management for the health workforce; (ii) the implementation of a master patient index and a secure longitudinal patient information system; and (iii) enabling all health facilities to access the systems. Bhutan's eHealth strategy has the potential to fundamentally transform the delivery of health services, strengthen primary health care and enable the development of a "One Health" public health surveillance system.


Assuntos
Atenção à Saúde , Registros Eletrônicos de Saúde , Sistemas de Informação em Saúde , Pessoal de Saúde/normas , Telemedicina , Butão , Pessoal de Saúde/educação , Humanos
11.
Pediatr Radiol ; 49(4): 486-492, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30923880

RESUMO

Clinical decision support has been identified by the United States government as a method to decrease inappropriate imaging exams and promote judicious use of imaging resources. The adoption of this method will be incentivized by requiring appropriate use criteria to qualify for Medicare reimbursement starting in January 2020. While Medicare reimbursement is unlikely to directly impact pediatric imaging because of largely disparate patient populations, insurance providers typically use Medicare to benchmark their reimbursement guidelines. Therefore soon after their adoption these guidelines could become relevant to pediatric imaging. In this article we discuss how pediatric imaging was initially underrepresented in the clinical decision support realm, and how this was addressed by a subcommittee involving both American College of Radiology and Society for Pediatric Radiology members. We also present the experience of implementing clinical decision support software at two standalone pediatric hospitals and summarize the lessons learned from these deployments.


Assuntos
Sistemas de Apoio a Decisões Clínicas , Hospitais Pediátricos , Radiologia/normas , Software , Medicina Baseada em Evidências , Humanos , Uso Significativo/economia , Medicare/economia , Padrões de Prática Médica/economia , Radiologia/economia , Sociedades Médicas , Estados Unidos , Interface Usuário-Computador
12.
Int J Med Inform ; 100: 121-128, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-28241933

RESUMO

INTRODUCTION: There have been numerous global calls to action to utilize human resources information systems (HRIS) to improve the availability and quality of data for strengthening the regulation and deployment of health workers. However, with no normative guidance in existence, the development of HRIS has been inconsistent and lacking in standardization, hindering the availability and use of data for health workforce planning and decision making (Riley et al., 2012). CDC and WHO partnered with the Ministry of Health in several countries to conduct HRIS functional requirements analyses and establish a Minimum Data Set (MDS) of elements essential for a global standard HRIS. As a next step, CDC advanced a study to examine the alignment of one of the HRIS it supports (in Zimbabwe) against this MDS. METHOD: For this study, we created a new data collection and analysis tool to assess the extent to which Zimbabwe's CDC-supported HRIS was aligned with the WHO MDS. We performed systematic "gap analyses" in order to make prioritized recommendations for addressing the gaps, with the aim of improving the availability and quality of data on Zimbabwe's health workforce. RESULTS: The majority of the data elements outlined in the WHO MDS were present in the ZHRIS databases, though they were found to be missing various applicable elements. The lack of certain elements could impede functions such as health worker credential verification or equitable in-service training allocation. While the HRIS MDS treats all elements equally, our assessment revealed that not all the elements have equal significance when it comes to data utilization. Further, some of the HRIS MDS elements exceeded the current needs of regulatory bodies and the Ministry of Health and Child Care (MOHCC) in Zimbabwe. The preliminary findings of this study helped inspire the development of a more recent HRH Registry MDS subset, which is a shorter list of priority data elements recommended as a global standard for HRIS. CONCLUSION: The field-tested assessment methodology presented here, with suggested improvements to the tool, can be used to identify absent or unaligned elements in either an HRH Registry or a full HRIS. Addressing the prioritized gaps will increase the availability of critical data in the ZHRIS and can empower the MOHCC and councils to conduct more strategic analyses, improving health workforce planning and ultimately public health outcomes in the country.


Assuntos
Competência Clínica , Sistemas de Informação em Saúde/normas , Pessoal de Saúde , Planejamento em Saúde/legislação & jurisprudência , Recursos em Saúde/legislação & jurisprudência , Gestão de Recursos Humanos , Humanos , Sistema de Registros , Zimbábue
13.
Brachytherapy ; 15(5): 593-7, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27364874

RESUMO

PURPOSE: A questionnaire-based assessment of a cohort of young radiation oncologists attending the first human cadaveric hands-on brachytherapy workshop in India. METHODS AND MATERIALS: The cadaveric workshop for hands-on training in head/neck and gynecologic cancers was a novel process conducted at M.S. Ramaiah Medical College and Hospital, for which 30 attendees from all regions of India took part with an opportunity to interact with experienced resource persons, individually perform the procedure, and indulge in all aspects of brachytherapy process. The questionnaire was part of the workshop and enquired on common practices for head/neck and gynecologic brachytherapy followed by the attendees at their hospitals and their opinion on avenues for learning the skill of brachytherapy and its future as a therapeutic modality. RESULTS: Twenty-seven of thirty attendees were practicing brachytherapy at their centers out of which only 14 (46%) were doing head/neck brachytherapy. In gynecologic procedures, 89% were performing only intracavitary brachytherapy. Twenty attendees (66%) felt lack of expertise was the primary reason for dwindling brachytherapy practice in India. Ten (33%) of them felt that advancements in external radiotherapy were the second major cause for it. Some less important reasons given were lack of suitable cases, fear of toxicity, and reduced remuneration. CONCLUSIONS: Cadaveric brachytherapy workshops may be a practical and cost-effective method to inculcate this unique skill set in the next generation of radiation oncologists. This questionnaire-based assessment has tried to validate this opinion.


Assuntos
Braquiterapia , Neoplasias dos Genitais Femininos/radioterapia , Neoplasias de Cabeça e Pescoço/radioterapia , Radioterapia (Especialidade)/educação , Cadáver , Feminino , Humanos , Índia , Avaliação de Programas e Projetos de Saúde , Inquéritos e Questionários
14.
BMC Public Health ; 14: 784, 2014 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-25086742

RESUMO

BACKGROUND: The present study assessed coverage, changes in condom use, and prevalence of HIV and other STIs among high-risk men who have sex with men (HR-MSM; highly visible, recruited from cruising sites/sex venues) and transgender (TG; male-to-female transgender persons, also called hijras) in the Indian state of Maharashtra. METHODS: Data from Avahan's computerized management information system; two rounds of integrated behavioral and biological assessment (IBBA) surveys (Round 1 with 653 HR-MSM/TG and Round 2 with 652 HR-MSM/TG); and project-supported condom social marketing was used for the present analysis. Logistic regression models were used to assess changes in key indicators over these two rounds and to explore the association between exposure to Avahan interventions and condom use and STI prevalence in HR-MSM/TG. RESULTS: By December 2007, Avahan had reached about 90% of the estimated HR-MSM/TG population, and 83% of the estimated total population had visited STI clinics by March 2009. Free direct condom distribution by Avahan program NGOs and social marketing outlets in Maharashtra increased from about 2.7 million condoms in 2004 to 15.4 million in 2008. HR-MSM/TG were more likely to report higher consistent condom use (adjusted odds ratio [AOR]: 1.90; 95% confidence interval [CI] 1.01-3.58) with regular male partners (spouse/lover/boyfriend) in Round 2 of IBBA, compared to Round 1. HR-MSM/TG exposed to Avahan interventions were more likely to report consistent condom use with regular male partners (AOR: 2.46; CI 1.34-4.52) than those who were unexposed. Prevalence of reactive syphilis serology declined significantly from 8.8% in Round 1 to 1.1% in Round 2 (p = 0.001), while the observed change HIV prevalence (12.3% to 6.3%, p = 0.16) was insignificant. CONCLUSION: The current evaluation provides evidence for successful scale up and coverage of target population by Avahan interventions in Maharashtra. The assessment findings showed improved accessibility to condoms and reduced risk behaviours with male sexual partners. Syphilis prevalence declined; however HIV prevalence did not change and is still a major concern. Continued strengthening of core programmatic strategies are needed to effectively improve condom use with all partner types and to help bring sustained reductions in HIV risk in HR-MSM/TG and its onward transmission.


Assuntos
Preservativos/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Sexo Seguro , Infecções Sexualmente Transmissíveis/prevenção & controle , Sífilis/prevenção & controle , Pessoas Transgênero , Síndrome da Imunodeficiência Adquirida/prevenção & controle , Adolescente , Adulto , Estudos Transversais , Feminino , Infecções por HIV/epidemiologia , Promoção da Saúde/estatística & dados numéricos , Homossexualidade Masculina/estatística & dados numéricos , Humanos , Índia/epidemiologia , Modelos Logísticos , Masculino , Prevalência , Avaliação de Programas e Projetos de Saúde , Comportamento de Redução do Risco , Sexo Seguro/estatística & dados numéricos , Comportamento Sexual , Parceiros Sexuais , Infecções Sexualmente Transmissíveis/epidemiologia , Marketing Social , Sífilis/epidemiologia , Adulto Jovem
15.
Int J Drug Policy ; 25(5): 853-64, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24925819

RESUMO

BACKGROUND: The present study describes an assessment of a large-scale intervention, "Avahan", using an evaluation framework that assesses the program coverage, changes in injection patterns, condom use, and STI and HIV prevalence among People Who Inject Drugs (PWID) in two states of India - Manipur and Nagaland. METHODS: Program monitoring data and results from two rounds of a cross sectional biological and behavioural surveys in 2006 (Round 1) and 2009 (Round 2) were used. The sample included 839 and 860 PWIDs from Manipur and 821 and 829 PWIDs from Nagaland in Round 1 and Round 2 respectively for current analysis. Bivariate and multivariate analyses were done to measure the changes in behavioural and biological outcomes between the two rounds and to examine the association between programme exposure and behavioural outcomes. RESULTS: In Manipur, about 77% of the PWIDs were contacted by the peer educators/outreach workers every month and about 18% of the PWIDs visited the clinic every month by March 2010. In Nagaland, however, the proportion of PWIDs visiting the clinic monthly remained low (11% in March 2010). PWIDs in both states were more likely to report 'consistent safe injection practice in the last six months' in Round 2 compared to Round 1 (Manipur: adjusted odds ratio (aOR): 1.88, 95% confidence intervals (CI): 1.46-2.43; Nagaland: aOR: 2.35, 95% CI: 1.86-2.80) PWIDs were also more likely to report consistent condom use with regular partners in Round 2. The prevalence of Hepatitis B virus (HBV) increased in Round 2 in Manipur (11% vs 6%, p<0.001) and Nagaland (8% vs 6%, p=0.05). The prevalence of Hepatitis C virus (HCV) was high and did not change, either in Manipur (67.3% vs 69.9%, p=0.42) and Nagaland (14.7% vs 15.1%, p=0.82). Similarly, the prevalence of HIV did not change significantly between the two Rounds either in Manipur (27.8% in Round 1 vs 29.2% in Round 2, p=0.59) or in Nagaland (1.2% in Round 1 and 1.6% in Round 2 of the IBBA, p=0.82). CONCLUSION: Improvements in safe injection practices and consistent condom use with regular partners suggest effectiveness of prevention efforts. However, increase in HBV prevalence and non-decline in HCV and HIV prevalence in both the states also underscore the need to continue and intensify targeted interventions (such as Hepatitis B vaccination, needle exchange programmes, condom distribution) for long term risk reduction among PWID population.


Assuntos
Preservativos/estatística & dados numéricos , Infecções por HIV/prevenção & controle , Infecções Sexualmente Transmissíveis/epidemiologia , Abuso de Substâncias por Via Intravenosa/epidemiologia , Adolescente , Adulto , Estudos Transversais , Infecções por HIV/epidemiologia , Infecções por HIV/transmissão , Hepatite B/epidemiologia , Hepatite C/epidemiologia , Humanos , Índia/epidemiologia , Masculino , Análise Multivariada , Programas de Troca de Agulhas/organização & administração , Prevalência , Assunção de Riscos , Comportamento Sexual/estatística & dados numéricos , Parceiros Sexuais , Adulto Jovem
16.
PLoS One ; 9(2): e87441, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24533056

RESUMO

OBJECTIVES: Validation of a cost effective in-house method for HIV-1 drug resistance genotyping using plasma samples. DESIGN: The validation includes the establishment of analytical performance characteristics such as accuracy, reproducibility, precision and sensitivity. METHODS: The accuracy was assessed by comparing 26 paired Virological Quality Assessment (VQA) proficiency testing panel sequences generated by in-house and ViroSeq Genotyping System 2.0 (Celera Diagnostics, US) as a gold standard. The reproducibility and precision were carried out on five samples with five replicates representing multiple HIV-1 subtypes (A, B, C) and resistance patterns. The amplification sensitivity was evaluated on HIV-1 positive plasma samples (n = 88) with known viral loads ranges from 1000-1.8 million RNA copies/ml. RESULTS: Comparison of the nucleotide sequences generated by ViroSeq and in-house method showed 99.41±0.46 and 99.68±0.35% mean nucleotide and amino acid identity respectively. Out of 135 Stanford HIVdb listed HIV-1 drug resistance mutations, partial discordance was observed at 15 positions and complete discordance was absent. The reproducibility and precision study showed high nucleotide sequence identities i.e. 99.88±0.10 and 99.82±0.20 respectively. The in-house method showed 100% analytical sensitivity on the samples with HIV-1 viral load >1000 RNA copies/ml. The cost of running the in-house method is only 50% of that for ViroSeq method (112$ vs 300$), thus making it cost effective. CONCLUSIONS: The validated cost effective in-house method may be used to collect surveillance data on the emergence and transmission of HIV-1 drug resistance in resource limited countries. Moreover, the wide applications of a cost effective and validated in-house method for HIV-1 drug resistance testing will facilitate the decision making for the appropriate management of HIV infected patients.


Assuntos
Farmacorresistência Viral , Técnicas de Genotipagem/economia , Infecções por HIV/sangue , HIV-1/genética , Análise de Sequência de DNA/economia , Algoritmos , Fármacos Anti-HIV/farmacologia , Análise Custo-Benefício , Genótipo , Técnicas de Genotipagem/métodos , Humanos , Mutação , Filogenia , Reação em Cadeia da Polimerase/métodos , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Análise de Sequência de DNA/métodos , Software , Carga Viral
17.
AIDS Behav ; 18(7): 1330-8, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24458782

RESUMO

This paper examines the association between alcohol use and HIV-related sexual risk behaviors among men who have sex with men (MSM). A cross-sectional bio-behavioral survey was conducted among 3,880 MSM, recruited using time-location cluster sampling from cruising sites in three Indian states. Nearly three-fifths of the participants reported alcohol use. Among frequent users (40 % of the sample), defined as those who consumed alcohol daily or at least once a week, 66 % were aged 25 years and above, 53 % self-identified as kothi (feminine/receptive), and 63 % consistently used condoms with male paying partners. Multivariate logistic regression demonstrated that frequent users were more likely to be aged 25 years and above, less likely to self-identify as kothi, and less likely to consistently use condoms with male paying (AOR = 0.7; 95 % CI 0.5-0.9) and male regular (AOR = 0.7; 95 % CI 0.6-0.9) partners. HIV prevention interventions for MSM need to provide tailored information on alcohol use-related sexual risk, especially for MSM in sex work and MSM with male regular partners.


Assuntos
Consumo de Bebidas Alcoólicas , Infecções por HIV/prevenção & controle , Homossexualidade Masculina , Comportamento Sexual , Parceiros Sexuais , Adolescente , Adulto , Consumo de Bebidas Alcoólicas/epidemiologia , Consumo de Bebidas Alcoólicas/psicologia , Estudos Transversais , Infecções por HIV/epidemiologia , Infecções por HIV/psicologia , Conhecimentos, Atitudes e Prática em Saúde , Acessibilidade aos Serviços de Saúde , Homossexualidade Masculina/psicologia , Humanos , Incidência , Índia/epidemiologia , Masculino , Pessoa de Meia-Idade , Assunção de Riscos , Inquéritos e Questionários
18.
J Glaucoma ; 23(6): 355-9, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23221907

RESUMO

PURPOSE: To determine cost identification and acquisition cost comparison of surgical supplies for performing cataract and glaucoma procedures. METHODS: This is a nonrandomized comparative and cross-sectional study. Six health care systems [state-run charity hospital, a private university hospital, 2 ambulatory surgical centers (ASCs), and 2 Veterans Affairs Medical Centers] participated in the study. A list of input prices for disposable surgical items necessary for phacoemulsification with intraocular lens and for trabeculectomy with mitomycin-C (MMC), Ex-PRESS shunt placement, and Ahmed glaucoma valve (AGV) with scleral patch graft was administered to 6 facilities. The total acquisition costs for each surgery at each facility was calculated as the sum of necessary items' costs. All costs are expressed in 2011 US dollars. Total acquisition costs for phacoemulsification/intraocular lens, trabeculectomy with MMC, Ex-PRESS shunt and AGV with scleral patch graft implantation in different health care settings were the main outcome measures. RESULTS: The state-run hospital had the highest overall cost of disposable items for both cataract surgery ($648) and trabeculectomy with MMC ($339), whereas the Veterans Affairs Medical Centers had the lowest acquisition costs for cataract ($386) and the ASC ($96) for trabeculectomy. The ASC system had the lowest cost for both Ex-PRESS shunt ($707) and AGV ($865), whereas the University ($1352 for the Ex-PRESS) and the state ($1338 for AGV) had the highest cost. Average difference between total disposable item acquisition costs and Medicare payment after different surgeries per case is as follows: $544.29 for cataract surgery, $1834.50 for trabeculectomy, $763.30 for Ex-PRESS shunt, and $1315.00 for the AGV surgery. CONCLUSIONS: The ASC system had the lowest acquisition cost for disposable items for both cataract and glaucoma surgeries, whereas the university hospital and the state hospital carried the highest costs on an average. Among the 3 glaucoma procedures compared, trabeculectomy has the lowest acquisition costs for disposable items.


Assuntos
Catarata/economia , Atenção à Saúde , Implantes para Drenagem de Glaucoma/economia , Glaucoma/economia , Lentes Intraoculares/economia , Facoemulsificação/economia , Trabeculectomia/economia , Instituições de Assistência Ambulatorial/economia , Estudos Transversais , Equipamentos Descartáveis/economia , Hospitais Estaduais/economia , Hospitais Universitários/economia , Hospitais de Veteranos/economia , Humanos , Pessoa de Meia-Idade , Facoemulsificação/instrumentação , Trabeculectomia/instrumentação , Resultado do Tratamento
19.
J Glaucoma ; 23(6): 351-4, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23221908

RESUMO

PURPOSE: To report the incidence and management of Descemet membrane detachment (DMD) after canaloplasty. METHODS: Review of all patients who developed DMD after canaloplasty at Tulane Glaucoma Services was performed. Visual acuity, intraocular pressure, and number of glaucoma medications up to 1 year of follow-up were included in the analysis. RESULTS: The incidence of DMD was 7.4% (12 eyes of 162). Eighty-three percent (10/12) of the DMDs involved the inferior quadrants and measured <3 mm. Intracorneal hemorrhage within DMD occurred in 58% (7/12), whereas 42% (5/12) developed DMD with intracorneal viscoelastic (Healon GV) alone. Two patients had large detachments measuring 5 to 6 mm extending into the visual axis. DMD resolved completely with or without drainage except for 1 patient who developed corneal decompensation, needing penetrating keratoplasty. CONCLUSIONS: DMD with or without intracorneal hemorrhage is not an infrequent complication of canaloplasty and can occasionally lead to corneal decompensation.


Assuntos
Doenças da Córnea/etiologia , Lâmina Limitante Posterior/lesões , Cirurgia Filtrante/efeitos adversos , Idoso , Doenças da Córnea/cirurgia , Feminino , Glaucoma/cirurgia , Humanos , Ácido Hialurônico/administração & dosagem , Incidência , Pressão Intraocular , Masculino , Pessoa de Meia-Idade , Ruptura , Tonometria Ocular , Acuidade Visual
20.
BMJ Open ; 3(4)2013.
Artigo em Inglês | MEDLINE | ID: mdl-23572195

RESUMO

OBJECTIVES: To assess a large-scale intervention, the Avahan intervention, using an evaluation framework that included programme coverage, condom use and changes in sexually transmitted infection (STI) and HIV prevalence among high-risk men who have sex with men/transgender (HR-MSM/TG) in the state of Andhra Pradesh, India. DESIGN: Programme monitoring data and results from two rounds of cross-sectional integrated biological and behavioural assessment (IBBA) in 2006 (Round 1) and 2009 (Round 2) were used for current analysis. SETTING: Programme monitoring data and cross-sectional surveys from Andhra Pradesh, India. PARTICIPANTS: Data from 1218 and 1203 participants in Rounds 1 and 2 of the IBBA, respectively, and field level programme monitoring data from the intervention districts. PRIMARY AND SECONDARY OUTCOMES: (1) Assess the reach of intervention in the HR-MSM/TG population; (2) evaluate the association between intervention and the intermediate outcomes (such as condom use and STIs) and (3) assess the association between HIV/STIs and the intervention. RESULTS: By July 2008, the intervention contacted 83% of the estimated HR-MSM/TG population monthly and 16% were attending the STI clinic monthly. HR-MSM/TG exposed to the intervention were significantly more likely to use condom consistently with a regular male partner (adjusted OR 4.62, 95% CI 1.40 to 15.22). Consistent condom use with all types of male partners increased significantly in survey Round 2 compared with Round 1. The proportion of HR-MSM/TG who tested positive for HIV-1 antibodies was similar in both rounds (15.5% in Round 1 vs 17.3% in Round 2, p=0.52). CONCLUSION: The Avahan intervention achieved a good population coverage, and delivered high-intensity peer and STI clinical services in Andhra Pradesh in the highly mobile target population of HR-MSM/TG; this also resulted in positive behavioural outcomes including increased condom use. However, the high prevalence of HIV in this group is an important public health priority.

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