156 research outputs found

    Resistant arterial hypertension in a patient with adrenal incidentaloma multiple steno-obstructive vascular lesions and antiphospholipid syndrome

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    Resistant hypertension is defined as above of blood pressure (≤ 140/90 mmHg) despite therapy with three or more antihypertensive drugs of different classes at maximum tolerable doses with one bling a diuretic. An important consideration in defining a patient with resistant hypertension is the mislabeling of secondary hypertension as resistant hypertension. Here, we report a patients with resistant hypertension caused by multiple stenoocclusive arteries due to antiphospholipid syndrome and coexisting with subclinical Cushing’s syndrome

    Advances in targeted Alpha therapy for prostate cancer

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    BACKGROUND: Amongst therapeutic radiopharmaceuticals, targeted alpha therapy (TαT) can deliver potent and local radiation selectively to cancer cells as well as the tumor microenvironment and thereby control cancer while minimizing toxicity. DESIGN: In this review, we discuss the history, progress, and future potential of TαT in the treatment of prostate cancer, including dosimetry-individualized treatment planning, combinations with small-molecule therapies, and conjugation to molecules directed against antigens expressed by prostate cancer cells, such as prostate-specific membrane antigen (PSMA) or components of the tumor microenvironment. RESULTS: A clinical proof of concept that TαT is efficacious in treating bone-metastatic castration-resistant prostate cancer has been demonstrated by radium-223 via improved overall survival and long-term safety/tolerability in the phase III ALSYMPCA trial. Dosimetry calculation and pharmacokinetic measurements of TαT provide the potential for optimization and individualized treatment planning for a precision medicine-based cancer management paradigm. The ability to combine TαTs with other agents, including chemotherapy, androgen receptor (AR)-targeting agents, DNA repair inhibitors, and immuno-oncology agents, is under investigation. Currently, TαTs that specifically target prostate cancer cells expressing PSMA represents a promising therapeutic approach. Both PSMA-targeted actinium-225 and thorium-227 conjugates are under investigation. CONCLUSIONS: The described clinical benefit, safety and tolerability of radium-223 and the recent progress in TαT trial development suggest that TαT occupies an important new role in prostate cancer treatment. Ongoing studies with newer dosimetry methods, PSMA targeting, and novel approaches to combination therapies should expand the utility of TαT in prostate cancer treatment

    Comparison of the imaging performances for recently developed monolithic scintillators: CRY018 and CRY019 for dual isotope gamma ray imaging applications

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    The growing interest for new scintillation crystals with outstanding imaging performances (i.e. resolution and efficiency) has suggested the study of recently discovered scintillators named CRY018 and CRY019. The crystals under investigation are monolithic and have shown enhanced characteristics both for gamma ray spectrometry and for Nuclear Medicine imaging applications such as the dual isotope imaging. Moreover, the non-hygroscopic nature and the absence of afterglow make these scintillators even more attractive for the potential improvement in a wide range of applications. These scintillation crystals show a high energy resolution in the energy range involved in Nuclear Medicine, allowing the discrimination between very close energy values. Moreover, in order to prove their suitability of being powerful imaging systems, the imaging performances like the position linearity and the intrinsic spatial resolution have been evaluated obtaining satisfactory results thanks to the implementation of an optimized algorithm for the images reconstruction. © 2017 IOP Publishing Ltd and Sissa Medialab srl

    Free testosterone (FT) is inversely related to frailty in human immunodeficiency virus (HIV)-infected men.

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    BACKGROUND HIV-infection is associated to several age-related comorbidities, such as a premature decline of serum testosterone (T). There is evidence about the relationship between health status, represented by frailty and comorbidities, and serum T levels in general population, while only one previous retrospective study investigated it in HIV-infected men. AIM To investigate the association between frailty and gonadal status by assessing serum total T (TT) with Liquid Chromatography tandem Mass Spectrometry (LC-MS/MS) in a cohort of HIV-infected men. METHODS Prospective, cross-sectional, observational study on HIV-infected men (age years) with ongoing Highly Active Antiretroviral Therapy (HAART). Serum TT was assessed by the gold standard ID- LC-MS/MS. Sex hormone-binding globulin (SHBG) was measured by chemiluminescent immunoassay. Free T (FT) was calculated by Vermeulen equation. Frailty was calculated through -items multimorbidity frailty index. Saca aa Parameters were not normally distributed and Mann- Whitney U test was used to compare continuous variables. Correlations were performed using linear regression models. RESULTS consecutive HIV-infected men were enrolled (mean age .. years; average duration of HIV-infection .. years). patients (.) had TT below ng/dL and patients (.) had calculated FT below pg/mL. Overall, patients (.) had T deficiency defined by low TT levels and/or low FT. patients (.) showed SHBG above the normal range (. nmol/L). Frailty score (p.), age (p.), duration of HIV-infection and of HAART (p.) significantly differed between eugonadic and hypogonadic patients, while no difference was found for BMI (p.). FT inversely correlated with frailty score (p., R.), while TT did not (p.). At stepwise multivariate regression analysis, FT showed an inverse relation with age (p.,R.), years of infection (-.,p.,R.) and years of HAART (-.,p.,R.), but not with frailty score and BMI of patients. CONCLUSIONS To the best of our knowledge, this is the first properly-designed prospective study aiming to investigate the relationship between general health status and gonadal function in a cohort of HIV-infected men. FT is inversely related to frailty score, suggesting an impairment of gonadal function in those patients affected by more multimorbidities in this setting as well as in general population. At the same time, the age of patient and the duration of HIV-infection seem to be more potent predictive factors for serum FT levels than frailty score. In clinical practice it is important to check for testosterone in these patients due to frequent alterations of SHBG

    Low Serum Testosterone (T) Is Associated with Poor Health Status in Young to Middle-Aged Human Immunodeficiency Virus (HIV)-Infected Men.

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    BACKGROUND: The relationship between health status, defined by frailty and comorbidities, and serum T levels has been widely demonstrated in general population, while only one previous retrospective study has explored it in HIV-infected men1. AIM: To investigate the association between frailty and go- nadal status by assessing serum total T (TT) with Liquid Chromatography tandem Mass Spectrometry (LC-MS/MS) in a cohort of HIV-infected men. METHODS: Prospective, cross-sectional, observational study on HIV-infected men (age <50 years) with on- going Highly Active Antiretroviral Therapy. Serum TT was assessed by the gold standard ID-LC-MS/MS. Sex hormone-binding globulin (SHBG) was measured by chem- iluminescent immunoassay. Calculated free T (cFT) was obtained by Vermeulen equation. Multimorbidity was de- fined as at least 3 comorbid conditions, including: hyperten- sion, diabetes, cardiovascular disease, chronic obstructive pulmonary disease, chronic kidney disease, osteoporosis, chronic viral hepatitis and cancers. Frailty was calculated through the validated 37-item frailty index (FI)2. Patients with FI>0.21 were considered frail. Statistical ana- lysis: Mann-Whitney U test was used to compare contin- uous variables. Correlations were performed using linear regression models. RESULTS: 315 consecutive HIV-infected men were enrolled (mean age 45.3\ub15.3 years; average duration of HIV-infection 16.3\ub18.8 years). 128 patients (40.5%) were co- morbid and 207 (64.9%) were frail. Either cFT (p=0.001) or TT (p<0.001) were lower in comorbid patients than others. FT was inversely related to the number of comorbidities (p<0.001, R2=0.045). Accordingly, cFT (p=0.003) and TT (p<0.001) were significantly lower in frail patients.Frailty score was inversely correlated with cFT (p<0.001, R2=0.058), TT (p=0.041, R2=0.014) and SHBG (p=0.003, R2=0.029). However, after adjustment for age and duration of HIV-infection, cFT, TT and SHBG were excluded from the regression model. CONCLUSIONS: Low cFT and TT levels are associated with multimorbidity and poor health status in HIV infected men. The bidirectional nature of this relationship leads to the figuration of an intriguing vicious circle where T de- ficiency triggers the onset of comorbidities or, vice versa, poor health status induces hypogonadism. At the same time, notwithstanding the inverse relation between FT and frailty, it seems that other stronger predictive factors, and in particular the duration of infection, are involved in de- termining the health outcome in this clinical setting

    International impact of COVID-19 on the diagnosis of heart disease

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    Background: The coronavirus disease 2019 (COVID-19) pandemic has adversely affected diagnosis and treatment of noncommunicable diseases. Its effects on delivery of diagnostic care for cardiovascular disease, which remains the leading cause of death worldwide, have not been quantified. Objectives: The study sought to assess COVID-19's impact on global cardiovascular diagnostic procedural volumes and safety practices. Methods: The International Atomic Energy Agency conducted a worldwide survey assessing alterations in cardiovascular procedure volumes and safety practices resulting from COVID-19. Noninvasive and invasive cardiac testing volumes were obtained from participating sites for March and April 2020 and compared with those from March 2019. Availability of personal protective equipment and pandemic-related testing practice changes were ascertained. Results: Surveys were submitted from 909 inpatient and outpatient centers performing cardiac diagnostic procedures, in 108 countries. Procedure volumes decreased 42% from March 2019 to March 2020, and 64% from March 2019 to April 2020. Transthoracic echocardiography decreased by 59%, transesophageal echocardiography 76%, and stress tests 78%, which varied between stress modalities. Coronary angiography (invasive or computed tomography) decreased 55% (p < 0.001 for each procedure). In multivariable regression, significantly greater reduction in procedures occurred for centers in countries with lower gross domestic product. Location in a low-income and lower–middle-income country was associated with an additional 22% reduction in cardiac procedures and less availability of personal protective equipment and telehealth. Conclusions: COVID-19 was associated with a significant and abrupt reduction in cardiovascular diagnostic testing across the globe, especially affecting the world's economically challenged. Further study of cardiovascular outcomes and COVID-19–related changes in care delivery is warranted

    The T.O.S.C.A. Project: Research, Education and Care

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    Despite recent and exponential improvements in diagnostic- therapeutic pathways, an existing “GAP” has been revealed between the “real world care” and the “optimal care” of patients with chronic heart failure (CHF). We present the T.O.S.CA. Project (Trattamento Ormonale dello Scompenso CArdiaco), an Italian multicenter initiative involving different health care professionals and services aiming to explore the CHF “metabolic pathophysiological model” and to improve the quality of care of HF patients through research and continuing medical education
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