Flavours and design features on tobacco product packaging near schools before and after plain packaging implementation in Montevideo, Uruguay.

INTRODUCTION: Monitoring tobacco industry marketing strategies in countries that have introduced plain packaging helps with documenting variations in the market during the transition period. Uruguay implemented plain packaging in February 2020. We describe changes in the characteristics of tobacco packaging, content and sticks before and after plain packaging implementation. METHODS: Data were collected across 15 neighbourhoods in different socioeconomic areas in Montevideo, Uruguay, before and after implementation (2019 and 2021). A high school or college was selected in each neighbourhood as the walking protocol starting point. Two stores were visited per neighbourhood. Cigarettes and roll-your-own tobacco (RYO) were purchased and coded for the presence of taste or sensation lexical and imagery features. RESULTS: The number of unique products increased between 2019 (n=23) and 2021 (n=40). Prior to implementation, all packs presented design features. After its implementation, 95.7% of cigarette packs complied with regulations. Overall, 34.7% of cigarettes and RYO were flavoured in 2019 versus 50.0% in 2021 (p=0.01). In 2019, all flavoured cigarette packs conveyed taste through language and/or imagery, while cigarettes had designs on the filter suggesting the potential for altering the flavour. In 2021, 44.0% of cigarette packs indicated flavour through lexicon; and 81.0% of cigarette sticks still included a flavour capsule. CONCLUSIONS: After implementation, we noticed an increase in the availability of unique flavoured cigarettes and RYO among surveyed retailers. However, this increase was less pronounced compared with what is reported in the Latin American region. Non-compliance was identified. Greater efforts should be made enforcing current policy.

Cardiac scintigraphy and echocardiography assessment in the diagnosis of transthyretin cardiac amyloidosis.

The aim is to evaluate the diagnostic yield of echocardiography and [99mTc]Tc-DPD scintigraphy in the detection of amyloid cardiomyopathy (CM) and define potential prognostic echocardiographic parameters. 133 patients were retrospectively studied, from 2016 to 2021, with a mean age of 80.2 ± 7.5 years. The final diagnosis was established according to international consensus. Patients had a transthoracic echocardiogram (TTE) and [99mTc]Tc-DPD scintigraphy; RWT, E/e, LS, TAPSE, SAB, and IWT scores were calculated. All patients with ATTR-CM were classified into 3 prognostic stages and were compared with Perugini grades and echocardiographic parameters. CM was confirmed in 85 cases (63.9%), 76 (57.1%) ATTR-CM, and 9 (6.8%) AL-CM. The diagnostic yield of [99mTc]Tc-DPD scintigraphy and echocardiography were calculated, with a sensitivity of 90.7%, specificity of 100%, PPV of 100%, and NPV of 87.2% in myocardial scintigraphy, versus 74.6%, 62.5%, 75.6%, 61.2% in the echocardiogram. According to the IWT score, most patients were classified in the intermediate group; 33 presented with grade 2-3 uptakes. Significant results were obtained when comparing Perugini score with IWT (p: 0.02) and SAB (p: 0.03); and between biomarkers stages and LVEF (p: 0.028), E/e´ (p: 0.001), and GLS% (p: 0.022). [99mTc]Tc-DPD scintigraphy is superior in diagnosing CA. SAB could be the most reliable parameter in an early diagnostic phase, showing a strong correlation with Perugini grades 2 and 3.

Impact of Direct-Acting Antiviral Therapy on Liver Fibrosis Regression among People with Chronic HCV Infection: Results from a Real-Life Cohort in Patients Who Achieved Sustained Virological Response.

Background and Objectives: The global prevalence of chronic hepatitis C virus (HCV) infection is 0.8%, affecting around 58 million people worldwide. Treatment with DAAs reduces all-cause HCV mortality by 49-68%. This work aims to determine whether there is liver fibrosis regression (LFR) in patients who achieved Sustained Virological Response (SVR) after treatment with DAAs. Materials and Methods: An analytical, observational, single-center, and cohort study was carried out. The final sample consisted of 248 HCV-infected patients. All started treatment with DAAs between January 2015 and December 2017. Five measurements were performed to determine the fibrotic stage in patients (measured in kilopascals (kPa)) using transient elastography (FibroScan®, Echosens, The Netherlands). Results: Taking the baseline fibrotic stage as a reference, the distribution in subgroups was as follows: 77 F4 patients (31.0%); 55 F3 patients (22.2%); 53 F2 patients (21.4%); and 63 F0/F1 patients (25.4%). There were 40 patients (16.1%) with at least one HCV complication and 13 (5.2%) who developed hepatocellular carcinoma. The overall LFR rate was 77.8% (144 of 185 F2/F3/F4 patients, p = 0.01) at the end of the follow-up period. The highest mean FibroScan® values were observed in patients with: "male gender"; "metabolic syndrome"; "subtype 1a"; "NRP DAA"; "at least one HCV complication"; "death from HCV complications"; and "liver transplantation requirement". Conclusions: Treatment with DAAs achieved high rates of LFR and a decrease in mean FibroScan® values in all subgroups.

Description of a different quantification method for amyloid burden (DPDload) and validation of SPECT/CT in cardiac amyloidosis.

BACKGROUND: Bone tracers such as 99mTc-DPD have shown high sensitivity and specificity in the non-invasive diagnosis of transthyretin cardiac amyloidosis (ATTR-CA). This study aims to validate SPECT/CT and assess the usefulness of uptake quantification (DPDload) in the myocardial tissue as potential information on the amyloid burden. METHODS: In a retrospective analysis of 46 patients with suspected CA, 23 cases with ATTR-CA had two quantification methods conducted to estimate amyloid burden (DPDload) through planar scintigraphic scans and a SPECT/CT. RESULTS: SPECT/CT significantly provided an added value in the patient's diagnosis with CA (P<.05). The estimation of the amyloid burden substantiated that the most affected wall of the LV is the interventricular septum in most cases and the existence of a significant relationship between the Perugini score uptake and the DPDload. CONCLUSIONS: We validate the need for SPECT/CT to complement planar imaging in diagnosing ATTR-CA. For its part, quantifying the amyloid load continues to be a complex area of research. It requires further studies with a larger number of patients to validate a standardized method of amyloid load quantification, both for diagnosis and treatment monitoring.

Enhanced quantitative method for the diagnosis of grade 1 cardiac amyloidosis in 99mTc-DPD scintigraphy.

The lack of a standardized cut-off value in the quantitative method and an inter-observer disagreement in the evaluation of the semiquantitative score in 99mTc-DPD scintigraphy leaves several patients with cardiac amyloidosis (CA) undiagnosed (grade 1 and H/CL: 1-1.49). This study aims to increase diagnostic productivity of 99mTc-DPD scintigraphy in CA. This is a retrospective study of 170 patients with suspicion of CA. A total of 81 (47.6%) were classified as transthyretin CA (TTR-CA) and 9 (5.3%) as light-chain CA (LC-CA) applying the visual score. An enhanced quantitative method and cut-off point were attempted to reclassify inconclusive patients and reduce inter-observer variability. Applying the proposed quantitative method, of the 19 patients with grade 1 uptake, 2 became grade 0 (none-CA), 2 were reclassified as grade 3 (TTR-CA), and 2 were regrouped as grade 2 (1 TTR-CA and 1 LC-CA). Adjusting the quantitative method's cut-off value to 1.3, four patients previously inconclusive were reclassified as TTR-CA, the diagnosis was confirmed in 3 and rejected in 1. When a 1.3 threshold is compared to 1.5, the sensitivity increases to 94% without reducing its specificity. The quantitative method improves the visual interpretation, reclassifying doubtful cases. The optimization of the cut-off value from 1.5 to 1.3 reclassifies a higher percentage of patients as TTR-CA with a higher sensitivity without reducing its specificity.

Added-value of molecular imaging in myocardial metastasis of an ileal neuroendocrine tumour treated with peptide receptor radionuclide therapy: a case report.

BACKGROUND: Neuroendocrine tumours (NET) conform a rare type of neoplasm, mostly located in the gastrointestinal tract. They are slow-growing tumours, so at the time of the diagnosis, most patients present with metastatic lesions, mainly in the liver. The myocardium is a rare and important organ for metastasis, in which 68Ga-Dotatate positron emission tomography-computed tomography (PET/CT) shows a high diagnostic sensitivity for its detection, contrary to carcinoid valve disease, where anatomic imaging plays a key role, especially the echocardiogram. CASE SUMMARY: A 60-year-old man diagnosed with metastatic progressive ileal NET, who underwent a 68Ga-Dotatate PET/CT prior 177Lu-Dotatate therapy, showed a metastatic lesion in the left ventricle that was undetected in previous studies, such as an Octreoscan® and CT. A transthoracic echocardiogram was performed revealing the existence of a second cardiac lesion, a tricuspid valve carcinoid disease. A cardiac magnetic resonance showed no late gadolinium enhancement. DISCUSSION: The 68Ga-Dotatate PET/CT is currently considered the gold standard for assessment and follow-up of NET, including those with rare sites of metastasis such as cardiac infiltration. In this case, it stimulated the persue of possible cardiac involvement, detecting the coexistence of two types of lesions (cardiac metastasis and carcinoid valve disease). Of these, carcinoid valvulopathy develops in 50% of NET cases, while cardiac metastasis (CM) is less frequent (only 5%).

Prevalencia de tabaquismo y sus características en pacientes hospitalizados en cuidados moderados de un hospital público universitario / Prevalence of smoking and its characteristics in patients hospitalized in moderate care at a public university hospital / Prevalência de tabagismo e suas características em pacientes internados em cuidados moderados em um hospital público universitário

Resumen: Introducción: El tabaquismo es la principal causa de enfermedad y muerte a nivel mundial, siendo una comorbilidad frecuente en los pacientes hospitalizados, con estadías mayores y peores resultados. En el Hospital de Clínicas, no hay estudios que evalúen la prevalencia del tabaquismo en usuarios internados desde el 2005. Objetivo: valorar prevalencia de tabaquistas y sus características en los pacientes que ingresan a sala de cuidados moderados de un Hospital Universitario. Material y métodos: Estudio observacional, analítico, de corte transversal. Resultados: Se incluyeron 100 pacientes, 38% eran tabaquistas, 27% ex tabaquistas y 35% no tenían historia de tabaquismo. La edad media fue de 48.65 años entre los tabaquistas; 63,11 en los ex tabaquistas; 58,68 en los no tabaquistas. Refirieron abstinencia 44,73% de los tabaquistas y pretendían mantener la abstinencia. La media de internación del grupo de tabaquistas fue de 31,07 días, mientras que entre no tabaquistas fue de 20,11 (p=0.1337). Falleció 14% de la población del estudio durante la internación. De este grupo, 14,28% no eran tabaquistas, 28,57% eran ex tabaquistas y 57,14% eran tabaquistas (p=0.0569). La media de edad de fallecimiento en los tabaquistas fue de 49,37 años, en los ex tabaquistas de 70,75 años y de 76 años en los no tabaquistas. Conclusiones e Implicancias: alta prevalencia de tabaquismo en pacientes hospitalizados, con mayor estadía de internación, y mayor mortalidad a menor edad. Muchos fumadores están altamente motivados al cese y se verían beneficiados de equipos interdisciplinarios para su abordaje.

Abstract: Introduction: Smoking is the main cause of disease and death worldwide, being a frequent comorbidity in hospitalized patients, with longer stays and worse results. At Hospital de Clínicas, there are no studies evaluating the prevalence of smoking in hospitalized users since 2005. Objective: to assess the prevalence of smokers and their characteristics in patients admitted to the moderate care room of a University Hospital. Methods: Observational, analytical, cross-sectional study. Results: 100 patients were included, 38% were smokers, 27% ex-smokers and 35% had no history of smoking. The mean age was 48.65 years among the smokers; 63.11 in former smokers; 58.68 in non-smokers. 44.73% of the smokers reported abstinence and intended to maintain abstinence. The mean hospitalization of the group of smokers was 31.07 days, while among non-smokers it was 20.11 (p = 0.1337). 14% of the study population died during hospitalization. Of this group, 14.28% were not smokers, 28.57% were ex-smokers and 57.14% were smokers (p = 0.0569). The mean age of death in smokers was 49.37 years, in ex-smokers it was 70.75 years and 76 years in non-smokers. Conclusions and Implications: high prevalence of smoking in hospitalized patients, with longer hospital stays, and higher mortality at a younger age. Many smokers are highly motivated to quit and would benefit from interdisciplinary teams to address them.

Resumo: Introdução: O tabagismo é a principal causa de doença e morte em todo o mundo, sendo uma comorbidade frequente em pacientes hospitalizados, com maior tempo de permanência e piores resultados. No Hospital de Clínicas, não há estudos avaliando a prevalência de tabagismo em usuários hospitalizados desde 2005. Objetivo: avaliar a prevalência de fumantes e suas características em pacientes internados na unidade de terapia moderada de um Hospital Universitário. Métodos: Estudo observacional, analítico, transversal. Resultados: 100 pacientes foram incluídos, 38% eram fumantes, 27% ex-fumantes e 35% não tinham história de tabagismo. A média de idade foi de 48,65 anos entre os fumantes; 63,11 em ex-fumantes; 58,68 em não fumantes. 44,73% dos fumantes relataram abstinência e pretendem manter a abstinência. A média de internação do grupo de fumantes foi de 31,07 dias, enquanto entre os não fumantes foi de 20,11 (p = 0,1337). 14% da população do estudo morreu durante a hospitalização. Desse grupo, 14,28% não eram fumantes, 28,57% eram ex-fumantes e 57,14% eram fumantes (p = 0,0569). A idade média de morte em fumantes foi 49,37 anos, em ex-fumantes foi 70,75 anos e 76 anos em não fumantes. Conclusões e implicações: alta prevalência de tabagismo em pacientes hospitalizados, com maior tempo de internação e maior mortalidade em idades mais jovens. Muitos fumantes estão altamente motivados para parar de fumar e se beneficiariam de equipes interdisciplinares para abordá-los.

Saborizantes y caracteres de diseño en cigarrillos y productos de tabaco disponibles próximos a centros educativos en Montevideo, Uruguay / Flavour additives and design lettering in cigarettes and tobacco products available close to educational centers in Montevideo, Uruguay / Sabores e características das embalagens de cigarros e produtos de tabaco disponíveis próximos a de centros educativos em Montevidéu, Uruguai

Resumen: Introducción: los productos de tabaco están diseñados para ser atractivos, introduciéndose últimamente elementos aditivos y saborizantes. En Uruguay existen normativas que evitan la publicidad en cualquiera de sus formas, por esto, la atracción del propio producto de tabaco a través de su sabor y diseño es un factor importante para la elección por parte de los fumadores, en particular, jóvenes. Es relevante conocer qué productos se encuentran disponibles en nuestro medio y cuáles son accesibles cerca de centros educativos. Material y método: se realizó un estudio descriptivo, observacional, prospectivo de corte transversal. El protocolo de trabajo de campo se adaptó del Sistema de Vigilancia de paquetes de Tabaco de la Universidad de Johns Hopkins. Resultados: se identificaron 23 variedades. El 34,78% de los productos fueron saborizados, estando disponibles en 86,67% de los puntos de venta. Todas las cajas de los saborizados tenían alguna referencia que indicaba su condición. En la mitad, la marca sugería la presencia de sabor o su activación. El 87,5% de los filtros se referían a la activación del sabor y 37,5% agregaban caracteres tecnológicos para éste; 75% tenía sabor a menta y 24% doble sabor. Solo 39,1% tenía información de protección al menor. Conclusiones e implicancias: hay una gran disponibilidad de productos de tabaco saborizados, incrementado la variedad en los últimos años, siendo en Uruguay menor que en otros países. En ausencia de regulación específica sobre aditivos y saborizantes, los países podrían disminuir la oferta implementando presentación única por marca y prohibición total de la publicidad.

Summary: Introduction: tobacco products are designed to be attractive, and recently, flavour additives have been introduced in the market. In Uruguay, regulations in force prohibit all forms of publicity for these products. For this reason, attracting consumers to tobacco products by means of flavour and design constitutes an important factor in smokers' choice, in particular the young. Learning about products available in our market and those that are close to educational centers is relevant. Method: descriptive, observational, prospective and transversal study. The field work protocol was adapted from the Johns Hopkins University Tobacco Pack Surveillance System Project. Results: 23 varieties were identified. 34.78% of the products were flavoured, and they were available in 86,67% points of sale. All flavoured products' packs included a reference to its condition. In 50% of them, the brand suggested the presence or activation of flavour. 87.5% of filters referred to flavor activation and 37.5% added technological traits. 75% were mint flavoured and 24% were double-flavoured. Only 39.1% included minor protection information. Conclusions: there is great availability of flavoured tobacco products, the variety being greater in recent years, although lower in Uruguay if compared to other countries. In the absence of specific regulations on additives and flavouring substances, countries could reduce the offer by implementing a single presentation by brand and the complete banning of publicity.

Resumo: Introdução: os produtos do tabaco são projetados para serem atraentes, com aditivos e elementos aromatizantes recentemente introduzidos. No Uruguai, existem normas que proíbem a publicidade em qualquer de suas formas, portanto, a atração do próprio produto do tabaco pelo seu sabor e design é um fator importante na escolha dos fumantes, principalmente dos jovens. É importante saber quais produtos estão disponíveis em nosso ambiente e quais estão disponíveis próximos a centros educativos. Material e métodos: foi realizado um estudo transversal descritivo, observacional e prospectivo. O protocolo de trabalho de campo foi adaptado do Sistema de Vigilância de Pacotes de Tabaco da Universidade Johns Hopkins. Resultados: foram identificadas 23 marcas diferentes. 34,78% dos produtos eram aromatizados, estando disponíveis em 86,67% dos pontos de venda. A embalagem de todas as marcas com sabor tinha alguma referência indicando essa característica. A metade delas indicava a presença do sabor ou sua ativação. 87,5% dos filtros referiram-se à ativação do sabor e 37,5% agregaram sus características tecnológicas. 75% tinham sabor mentolado e 24% dois sabores. Apenas 39,1% possuíam informações de proteção à criança. Conclusões e implicações: há uma grande disponibilidade de produtos de tabaco aromatizados, e a variedade tem aumentado nos últimos anos, sendo menor no Uruguai que em outros países. Na ausência de regulamentação específica sobre aditivos e aromatizantes, os países poderiam reduzir a oferta implementando uma apresentação única por marca e a proibição total da publicidade.

Evaluación de la personalidad y resultados en cesación tabáquica

Resumen: Introducción: Los resultados en cesación tabáquica son insatisfactorios, menores al 30% al año de finalizado el tratamiento. No existe suficiente evidencia sobre la relación entre el Nivel de Funcionamiento de la Personalidad (NFP) y cesación. La Escala de NFP (ENFP) del Manual Estadístico de los Trastornos Mentales 5ed. que evalúa la personalidad en relación consigo mismo y con los otros a través de cuatro dominios, podría ser útil para predecir y mejorar resultados. Objetivos: Evaluar la asociación entre el NFP y la abstinencia al final del tratamiento y a los 6 meses. Metodología: Estudio longitudinal y analítico de una muestra no probabilística de pacientes que consultaron en una Unidad de Tabaquismo. Se aplicó test de chi2 o test exacto de Fisher para evaluar asociación de variables categóricas. Se evaluó NFP con la ENFP y grado de dependencia física con el Test de Fagerström. Resultados: Participaron 28 pacientes, 57% mujeres, edad promedio 48 años (± 12,3). 16 de los 28 cesaron, de ellos 14 presentaron bajos puntajes en la ENFP, correspondiente a mejor NFP. A menores alteraciones en el NFP, mayor cesación al final del tratamiento. En relación a los dominios, la cesación se asoció con identidad, autodirección y empatía y no así con intimidad. La mayoría de los pacientes con enfermedades tabaco-dependientes que presentaban alteraciones del NFP no logró cesar. Conclusiones: Los pacientes sin alteraciones del NFP, tienen más probabilidad de dejar y mantenerse sin fumar. Esto sugiere la utilidad de evaluar el NFP para predecir resultados en la cesación.

Abstract: Introduction: The smoking cessation results are unsatisfactory, less than 30% a year after the end of treatment. There is insufficient evidence on the relationship between the Level of Personality Functioning (LPF) and cessation. The LPF Scale (LPFS) of the Statistical Manual of Mental Disorders 5ed. that evaluates personality in relation to yourself and others, through four domains, could be useful in predicting and improving outcomes. Objectives: To assess the association between LPF and abstinence at the end of treatment and at 6 months. Methodology: Longitudinal and analytical study of a non-probability sample of patients who consulted in a Cessation Unit. The chi2 test or Fisher's exact test was applied to evaluate the association of categorical variables. LPF was evaluated with the LPFS and degree of nicotine dependence with the Fagerström Test. Results: 28 patients participated, 57% women, average age 48 years (± 12.3). 16 of 28 stopped, of them 14 had low scores in the LPFS, corresponding to better LPF. A less alteration in the LPF, greater cessation at the end of the treatment. Regarding the domains, the association was found with identity, self-direction and empathy with cessation but not with intimacy. Most of the patients with tobacco-dependent diseases who presented LPF disorder did not quit. Conclusions: Patients without LPF disorders are more likely to achieve cessation and remain abstinent. This assumes the utility of evaluating the LPF to predict cessation outcomes.

Resumo: Introdução: Os resultados da cessação do tabaco são insatisfatórios, menos de 30% ao ano após o término do tratamento. Não há suficiente evidência sobre a relação entre o Nível de Funcionamento da Personalidade (NFP) e a cessação. Escala NFP (ENFP) do Manual Estatístico de Transtornos Mentais 5 ed. que avalia a personalidade em relação a si mesmo e os outros, através de quatro domínios poderia ser útil para prever e melhorar os resultados. Objetivos: Avaliar associação entre NFP e abstinência ao final do tratamento e aos 6 meses. Metodologia: Estudo longitudinal, analítico de uma amostra não probabilística de pacientes consultados numa unidade de fumantes. Foram aplicados teste de Chi2 ou teste exato de Fisher para avaliar associação de variáveis categóricas. O NFP foi avaliado com ENFP e o grau de dependência física com Teste de Fagerström. Resultados: 28 pacientes participaram no estudo, 57% mulheres, idade média 48 anos (± 12,3). 16 dos 28 conseguirem cessar, 14 deles tiveram escores baixos do ENFP, correspondendo num melhor NFP. Quanto menos alterações no NFP, maior cessação ao final do tratamento. Em relação aos domínios, foi encontrada associação com identidade, autodireção e empatia com cessação, mas não é assim com intimidade. A maioria das pessoas com doenças dependentes do tabaco, que apresentavam alterações no PFN não conseguiu parar. Conclusões: Pacientes sem alterações no NFP têm maior probabilidade de cessação e permanecem livres de fumo. Isso sugere a utilidade de avaliar o NFP pra prever resultados na cessação.

Patrón de deformación miocárdica del ventrículo izquierdo en la estenosis aórtica grave sin amiloidosis cardiaca. Estudio AMY-TAVI / Left ventricle myocardial deformation pattern in severe aortic valve stenosis without cardiac amyloidosis. The AMY-TAVI trial

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Evaluation of 177Lu-Dotatate treatment in patients with metastatic neuroendocrine tumors and prognostic factors.

BACKGROUND: 177Lu peptide receptor radionuclide therapy (PRRT) is a recently approved therapy in Spain that has been demonstrated to be a well-tolerated therapy for positive somatostatin receptor advanced gastroenteropancreatic neuroendocrine tumors. AIM: To determine the impact of PRRT on quality of life, radiologic and metabolic response, overall survival, prognostic factors and toxicity. METHODS: Thirty-six patients treated with 177Lu-PRRT from 2016 to 2019 were included. The most frequent location of the primary tumor was the gastrointestinal tract (52.8%), pancreas (27.8%), and nongastropancreatic neuroendocrine tumor (11.1%). The liver was the most common site of metastasis (91.7%), followed by distant nodes (50.0%), bone (27.8%), peritoneum (25.0%) and lung (11.1%). Toxicity was evaluated after the administration of each dose. Treatment efficacy was evaluated by two parameters: stable disease and disease progression in response evaluation criteria in solid tumors 1.1 criterion and prognostic factors were tested. RESULTS: From 36 patients, 55.6% were men, with a median age of 61.1 ± 11.8 years. Regarding previous treatments, 55.6% of patients underwent surgery of the primary tumor, 100% of patients were treated with long-acting somatostatin analogues, 66.7% of patients were treated with everolimus, 27.8% of patients were treated with tyrosine kinase inhibitor, and 27.8% of patients were treated with interferon. One patient received radioembolization, three patients received chemoembolization, six patients received chemotherapy. Hematological toxicity was registered in 14 patients (G1-G2: 55.5% and G3: 3.1%). Other events presented were intestinal suboclusion in 4 cases, cholestasis in 2 cases and carcinoid crisis in 1 case. The median follow-up time was 3 years. Currently, 24 patients completed treatment. Nineteen are alive with stable disease, two have disease progression, eight have died, and nine are still receiving treatment. The median overall survival was 12.5 mo (95% confidence interval range: 9.8-15.2), being inversely proportional to toxicity in previous treatments (P < 0.02), tumor grade (P < 0.01) and the presence of bone lesions (P = 0.009) and directly proportional with matching lesion findings between Octreoscan and computed tomography pre-PRRT (P < 0.01), , primary tumor surgery (P = 0.03) and metastasis surgery (P = 0.045). In a multivariate Cox regression analysis, a high Ki67 index (P = 0.003), a mismatch in the lesion findings between Octreoscan and computed tomography pre-PRRT (P < 0.01) and a preceding toxicity in previous treatments (P < 0.05) were risk factors to overall survival. CONCLUSION: Overall survival was inversely proportional to previous toxicity, tumor grade and the presence of bone metastasis and directly proportional to matching lesion findings between Octreoscan and computed tomography pre-PRRT and primary tumor and metastasis surgery.

Advantages and limitations of 18-fluoro-2-deoxy-d-glucose positron emission tomography/computed tomography in the diagnosis of infective endocarditis.

INTRODUCTION: The early diagnosis of infective endocarditis (IE) is a medical challenge and a multidisciplinary approach is essential to improve its frequently fatal prognosis. Our goal was to evaluate the usefulness of [18F]2-fluoro-2-deoxy-d-glucose positron emission tomography (18F-FDG PET) in the diagnosis of this disease. MATERIALS AND METHODS: We prospectively assessed 43 patients (five female and 38 male) with clinical suspicion of IE between 2014 and 2017. All patients underwent transesophageal echocardiography (TEE) and an 18F-FDG PET scan, and the results were compared. A positive PET finding was defined as increased FDG uptake on cardiac valves or intracardiac devices. RESULTS: Out of 43 patients with suspected IE, the diagnosis was confirmed in 30 cases (79.7%). 18F-FDG PET was positive in 24 patients, with 19 showing FDG uptake on cardiac valves (two native and 17 prosthetic) and five on cardiac devices, being concordant with echocardiographic findings in 11 cases. 18F-FDG PET sensitivity was 80%, specificity 92%, positive predictive value (PPV) 96% and negative predictive value (NPV) 66%. Echocardiography presented sensitivity, specificity, PPV and NPV of 36%, 84%, 84% and 36%, respectively. CONCLUSIONS: 18F-FDG PET proved to be a sensitive technique with a high diagnostic value in patients with prosthetic valves and intracardiac devices and suspected IE. Its utility decreased dramatically in patients with suspected IE on native valves, in which TEE presented higher sensitivity and thus better diagnostic value.

Humo de tabaco en vehículos: medición de partículas de materia 2. 5 micras / Smoking in vehicles: measurement of 2. 5 PM matter particles

Introducción: proteger a la población del humo de segunda mano (HSM) es uno de los principios de la Organización Mundial de la Salud en el marco del control del tabaco. Existen pocos datos acerca de la exposición de HSM en vehículos en América del Sur. Este estudio tuvo como objetivo determinar el nivel de dicha exposición. Materiales y método: se midieron niveles de micropartículas de materia de 2,5 micras de diámetro (PM2,5) que vehiculizan el HSM en la vía aérea, en modelos experimentales en autos de fumadores y no fumadores. Resultados: la media de la concentración de PM2,5 fue de 181 µg/m3 en los autos de fumadores y de 0 µg/m3 en los autos de no fumadores (p <0,001). La máxima concentración fue de 2.900 µg/m3 en un auto de fumador estacionado con la ventanilla del conductor parcialmente abierta. Conclusiones: las concentraciones de PM2,5 en vehículos en los que se fuma alcanzó niveles altos, similares a los que se encuentran en ciertos países con políticas de control de tabaco débiles. Este hecho determina la necesidad de nuevas políticas públicas para eliminar el HSM de los vehículos para proteger la salud pública. (AU)

Introduction: Protection from second-hand smoke (SHS) is one of the main principles of the World Health Organization Framework Convention for Tobacco Control. Limited data is available on SHS exposure in vehicles in South America. This study aimed to assess the levels of exposure. Methods: Levels of respirable and fine suspended particles with 2.5 micrometres or less (PM2.5) diameter were measured in different models in smokers' and non-smoker´s vehicles. Results: Median PM2.5 concentration was 181 µg/m3 in "smoking vehicles" and 0 µg/m3 in "non-smoking vehicles" (p<0.001). The highest concentration reached 2.900 µg/m3 in a parked car with the driver's window partially open. Conclusions: Concentration of PM2.5 in vehicles reached high levels, similar to those at certain sites in countries with weak tobacco control policies. These facts underscore a need for new public policies to eliminate SHS in vehicles to protect public health.

Introdução: um dos princípios da Organização Mundial da Saúde no contexto do controle do tabaquismo é proteger a população da fumaça de segunda-mão (HSM). Existem poucos dados sobre a exposição de HSM em veículos na América do Sul. O objetivo deste estudo foi identificar um mecanismo para determinar o nível desta exposição. Materiais e métodos: utilizando modelos experimentais em veículos de fumantes e não fumantes foram medidos os níveis de micropartículas de matéria de 2,5 micras de diâmetro (PM2,5) transportados pela HSM na via aérea. Resultados: á concentração média de PM2,5 foi 181 µg/m3 nos automóveis de fumantes e 0 µg/m3 nos automóveis de não fumantes (p<0.001). A concentração máxima de 2.900 µg/m3 foi encontrada no automóvel estacionado de um fumante com a janela do motorista parcialmente aberta. Conclusões: as concentrações de PM2,5 em veículos de fumantes alcançou níveis altos, similares aos encontrados em alguns países com políticas de controle de tabaco débeis. Este fato determina a necessidade de novas políticas públicas para eliminar a HSM dos veículos para proteger a saúde pública.

Prevalence of invehicle smoking and secondhand smoke exposure in Uruguay.

INTRODUCTION: Protection from secondhand smoke (SHS) is one of the fundamental principles of the WHO Framework Convention for Tobacco Control. Objective data on SHS exposure in vehicles in South America is scarce. This study aimed to estimate prevalence of smoking inside vehicles. METHODS: The point prevalence of smoking in vehicles was observed, and a method for estimating smoking prevalence was piloted. RESULTS: We observed 10 011 vehicles. In 219 (2.2%; 95% CI 1.91 to 2.49) of them, smoking was observed, and in 29.2% of these, another person was exposed to SHS. According to the 'expansion factor' we constructed, direct observation detected one of six to one to nine vehicles in which smoking occurred. The observed prevalence of smoking in vehicles (2.2%) could reflect a real prevalence between 12% and 19%. In 29.2% (95% CI 23.6 to 35.5) and 4.6% (95% CI 2.2 to 8.3) of vehicles in which smoking was observed, another adult or a child, respectively, was exposed to SHS. CONCLUSIONS: Smoking was estimated to occur in 12%-19% of vehicles, with involuntary exposure in one of three of vehicles observed. These data underscore a need for new public policies to eliminate SHS in vehicles to protect public health.

Simultaneous use of multiplex ligation-dependent probe amplification assay and flow cytometric DNA ploidy analysis in patients with acute leukemia.

BACKGROUND: The aim of this work was to simultaneously use multiplex ligation-dependent probe amplification (MLPA) assay and flow cytometric DNA ploidy analysis (FPA) to detect aneuploidy in patients with newly diagnosed acute leukemia. METHODS: MLPA assay and propidium iodide FPA were used to test samples from 53 consecutive patients with newly diagnosed acute leukemia referred to our laboratory for immunophenotyping. Results were compared by nonparametric statistics. RESULTS: The combined use of both methods significantly increased the rate of detection of aneuploidy as compared to that obtained by each method alone. The limitations of one method are somehow countervailed by the other and vice versa. CONCLUSIONS: MPLA and FPA yield different yet complementary information concerning aneuploidy in acute leukemia. The simultaneous use of both methods might be recommended in the clinical setting. © 2017 International Clinical Cytometry Society.

The mutation profile of JAK2, MPL and CALR in Mexican patients with Philadelphia chromosome-negative myeloproliferative neoplasms.

CONTEXT AND OBJECTIVE: By using molecular markers, it is possible to gain information on both the classification and etiopathogenesis of chronic myeloproliferative neoplasias (MPN). METHODS: In a group of 27 Mexican mestizo patients with MPNs, we studied seven molecular markers: the BCR/ABL1 fusion gene, the JAK2 V617F mutation, the JAK2 exon 12 mutations, the MPL W515L mutation, the MPL W515K mutation, and the calreticulin (CALR) exon 9 deletion or insertion. Patients with the BCR/ABL1 fusion gene were excluded. We studied 14 patients with essential thrombocythemia (ET), eight with polycythemia vera (PV), four with primary myelofibrosis (MF), and one with undifferentiated MPN. RESULTS: We found twelve individuals with the JAK2 V617F mutation; five of them had been clinically classified as PV, five as ET, and one as MF. One patient with the MPL W515L was identified with a clinical picture of ET. Five patients with the CALR mutation were identified, four ET and one MF. No individuals with either the MPL W515K mutation or the JAK2 exon 12 mutations were identified. The most consistent relationship was that between PV and the JAK2 V617F mutation (p=.01). CONCLUSIONS: Despite its small size, the study shows much less prevalence of JAK2 mutation in PV, ET and MF, which does not match international data.