32 research outputs found
Prostate cancer: pre-treatemnt evaluation with Magnetic Resonance Imaging and three-dimensional 1H-Magnetic Resonance Spectroscopy
Prostate cancer is the most frequent malignancy of the male genitourinary tract, with an incidence in Europe of approximately 30 per 100.000 [48,49]. MRI of the prostate with a combined pelvic and endorectal coil has become an accepted method for staging prostate cancer. The advantages of this technique get results especially in local staging sensitivity, with a better judgement of surrounding structures [50,51]. Three-dimensional 1H-spectroscopy (3D MRS) of the prostate with evaluation of the metabolites choline, creatine, and citrate is a promising method for detecting prostate carcinomas which in particular show a higher choline and a reduced citrate level in comparison with healthy prostatic tissue [52,53].
The first objective of our study was to assess sensitivity, specificity and accuracy of 3-D MRI and 3D MRS in patients with high prostate-specific antigen (PSA) levels and biopsy proven prostate carcinoma, candidate to radical prostatectomy.
The second purpose was to find a cut-off value of (Cho+Cr)/Cit ratio to discriminate between normal peripheral zone tissue and cancer.
Besides we find a correlation between (Cho+Cr)/Cit ratio and histologic Gleason score
Preventive medicine center and health care for students of medicine and health professions at the Sapienza University of Rome: a research protocol
This project aims to develop a Center of Preventive Medicine and Health Care for the students of Medicine and Health profession
at Sapienza University of Rome. At the beginning of the university career students, both residents and nonresident s, have to face
several difficulties such as: starting smoking or the increase in cigarette consumption ; the independent management of their own
health (especially for non residents consequently to the distance of the family doctor) ; unhealthy diet; tuberculosis (TB) biological
risk during their university training. These aspects , especially if present at the same time, act as a source stress and adversely affect
the quality of life and the academic performance. Specific aims of the project will be: implementing an ambulatory of Preventive
Medicine; implementing a virtual ambulatory of general medicine; creating a website on the problems mentioned above. Data
collected will be computerized to keep an electronic health record (HER) and to use the information for the purposes of scientific
research. The Centre will act in close relationship with the Central Administration, with the Headmasters of the Medical Faculties,
and in close collaboration with the Center of Occupational Medicine of Sapienza University
Legionellosi. Cos'e e come difendersi
Legionella e legionellosi sono termini che, per i profani della materia,
richiamano problematiche e malattie, seppur molto gravi, comunque
lontane nel tempo e nello spazio.
L’immaginario comune le lega ai “Legionari”, e quindi a persone
che viaggiano in paesi lontani e in condizioni di vita difficili.
Quando invece si approfondisce l’argomento si scopre che Legionella
è un batterio ampiamente diffuso in natura negli ambienti acquatici
compresi, quindi, le reti cittadine di distribuzione dell’acqua potabile,
gli impianti idrici dei singoli edifici, gli impianti di umidificazione,
le piscine, le fontane decorative ecc., ovvero presente praticamente in
ogni ambiente in cui noi viviamo.
Pertanto, l’esposizione a Legionella è molto più facile di quello che si
possa immaginare ed il rischio “legionellosi” è dipendente da una serie
di fattori che attengono alla carica microbica di Legionella nella matrice
acqua, alla estensione della contaminazione, alla virulenza del ceppo,
alla intensità e persistenza della condizione di esposizione nonché alle
condizioni di maggiore suscettibilità dell’ospite.
Questo quaderno informativo ha l’intenzione di far conoscere, sinteticamente,
ma in maniera completa, cos’è la legionellosi, dove e come
si può contrarre e come si può prevenire il rischio di infezione. Ha lo
scopo di fornire indicazioni utili a chi gestisce le strutture, i luoghi di
lavoro e le relative attività di manutenzioni impiantistiche, e a tutte le altre figure coinvolte nel processo di valutazione e gestione dei rischi,
compresi i lavoratori e gli utenti tutti delle strutture al fine di acquisire
rapidamente le informazioni operative di base per prevenire e gestire i
rischi legati all’esposizione a Legionella.
In questo quaderno informativo ciascuno degli Autori e dei Collaboratori
ha cercato di sintetizzare le proprie conoscenze ed esperienze
attraverso un linguaggio schematico ed operativo, semplice, intuitivo
e fruibile da chiunque, compresi i neofiti, senza però omettere le principali, Tutti possono e devono sentirsi coinvolti in questa attività di prevenzione
e, l’unico strumento per ottenere da ciascuno la giusta consapevolezza
che possa spingere a preservare la propria e altrui incolumità,
è mettere in atto una continua, attenta e instancabile opera di informazione e formazione.
Ciascun lettore, a seconda
delle proprie esigenze, che possono
essere organizzative, di
controllo o di semplice fruizione,
potrà prendere in considerazione
la parte del quaderno
che più riterrà utile.
Si suggerisce a Tutti coloro
che gestiscono una struttura o
un edificio di distribuire copia
di questo quaderno ai lavoratori,
ai frequentatori assidui
(Tirocinanti, Stagisti, Laureandi
etc.) e in particolare ai propri
collaboratori nella gestione
della salute e sicurezza
Preoperative rectal cancer staging with phased-array MR
<p>Abstract</p> <p>Background</p> <p>We retrospectively reviewed magnetic resonance (MR) images of 96 patients with diagnosis of rectal cancer to evaluate tumour stage (T stage), involvement of mesorectal fascia (MRF), and nodal metastasis (N stage).</p> <p>Our gold standard was histopathology.</p> <p>Methods</p> <p>All studies were performed with 1.5-T MR system (Symphony; Siemens Medical System, Erlangen, Germany) by using a phased-array coil. Our population was subdivided into two groups: the first one, formed by patients at T1-T2-T3, N0, M0 stage, whose underwent MR before surgery; the second group included patients at Tx N1 M0 and T3-T4 Nx M0 stage, whose underwent preoperative MR before neoadjuvant chemoradiation therapy and again 4-6 wks after the end of the treatment for the re-staging of disease.</p> <p>Our gold standard was histopathology.</p> <p>Results</p> <p>MR showed 81% overall agreement with histological findings for T and N stage prediction; for T stage, this rate increased up to 95% for pts of group I (48/96), while for group II (48/96) it decreased to 75%.</p> <p>Preoperative MR prediction of histologically involved MRF resulted very accurate (sensitivity 100%; specificity 100%) also after chemoradiation (sensitivity 100%; specificity 67%).</p> <p>Conclusions</p> <p>Phased-array MRI was able to clearly estimate the entire mesorectal fat and surrounding pelvic structures resulting the ideal technique for local preoperative rectal cancer staging.</p
Twelve Variants Polygenic Score for Low-Density Lipoprotein Cholesterol Distribution in a Large Cohort of Patients With Clinically Diagnosed Familial Hypercholesterolemia With or Without Causative Mutations
: Background A significant proportion of individuals clinically diagnosed with familial hypercholesterolemia (FH), but without any disease-causing mutation, are likely to have polygenic hypercholesterolemia. We evaluated the distribution of a polygenic risk score, consisting of 12 low-density lipoprotein cholesterol (LDL-C)-raising variants (polygenic LDL-C risk score), in subjects with a clinical diagnosis of FH. Methods and Results Within the Lipid Transport Disorders Italian Genetic Network (LIPIGEN) study, 875 patients who were FH-mutation positive (women, 54.75%; mean age, 42.47±15.00 years) and 644 patients who were FH-mutation negative (women, 54.21%; mean age, 49.73±13.54 years) were evaluated. Patients who were FH-mutation negative had lower mean levels of pretreatment LDL-C than patients who were FH-mutation positive (217.14±55.49 versus 270.52±68.59 mg/dL, P<0.0001). The mean value (±SD) of the polygenic LDL-C risk score was 1.00 (±0.18) in patients who were FH-mutation negative and 0.94 (±0.20) in patients who were FH-mutation positive (P<0.0001). In the receiver operating characteristic analysis, the area under the curve for recognizing subjects characterized by polygenic hypercholesterolemia was 0.59 (95% CI, 0.56-0.62), with sensitivity and specificity being 78% and 36%, respectively, at 0.905 as a cutoff value. Higher mean polygenic LDL-C risk score levels were observed among patients who were FH-mutation negative having pretreatment LDL-C levels in the range of 150 to 350 mg/dL (150-249 mg/dL: 1.01 versus 0.91, P<0.0001; 250-349 mg/dL: 1.02 versus 0.95, P=0.0001). A positive correlation between polygenic LDL-C risk score and pretreatment LDL-C levels was observed among patients with FH independently of the presence of causative mutations. Conclusions This analysis confirms the role of polymorphisms in modulating LDL-C levels, even in patients with genetically confirmed FH. More data are needed to support the use of the polygenic score in routine clinical practice
Spectrum of mutations in Italian patients with familial hypercholesterolemia: New results from the LIPIGEN study
Background Familial hypercholesterolemia (FH) is an autosomal dominant disease characterized by elevated plasma levels of LDL-cholesterol that confers an increased risk of premature atherosclerotic cardiovascular disease. Early identification and treatment of FH patients can improve prognosis and reduce the burden of cardiovascular mortality. Aim of this study was to perform the mutational analysis of FH patients identified through a collaboration of 20 Lipid Clinics in Italy (LIPIGEN Study). Methods We recruited 1592 individuals with a clinical diagnosis of definite or probable FH according to the Dutch Lipid Clinic Network criteria. We performed a parallel sequencing of the major candidate genes for monogenic hypercholesterolemia (LDLR, APOB, PCSK9, APOE, LDLRAP1, STAP1). Results A total of 213 variants were detected in 1076 subjects. About 90% of them had a pathogenic or likely pathogenic variants. More than 94% of patients carried pathogenic variants in LDLR gene, 27 of which were novel. Pathogenic variants in APOB and PCSK9 were exceedingly rare. We found 4 true homozygotes and 5 putative compound heterozygotes for pathogenic variants in LDLR gene, as well as 5 double heterozygotes for LDLR/APOB pathogenic variants. Two patients were homozygous for pathogenic variants in LDLRAP1 gene resulting in autosomal recessive hypercholesterolemia. One patient was found to be heterozygous for the ApoE variant p.(Leu167del), known to confer an FH phenotype. Conclusions This study shows the molecular characteristics of the FH patients identified in Italy over the last two years. Full phenotypic characterization of these patients and cascade screening of family members is now in progress
Familial hypercholesterolemia: The Italian Atherosclerosis Society Network (LIPIGEN)
BACKGROUND AND AIMS:
Primary dyslipidemias are a heterogeneous group of disorders characterized by abnormal levels of circulating lipoproteins. Among them, familial hypercholesterolemia is the most common lipid disorder that predisposes for premature cardiovascular disease. We set up an Italian nationwide network aimed at facilitating the clinical and genetic diagnosis of genetic dyslipidemias named LIPIGEN (LIpid TransPort Disorders Italian GEnetic Network).
METHODS:
Observational, multicenter, retrospective and prospective study involving about 40 Italian clinical centers. Genetic testing of the appropriate candidate genes at one of six molecular diagnostic laboratories serving as nationwide DNA diagnostic centers.
RESULTS AND CONCLUSIONS:
From 2012 to October 2016, available biochemical and clinical information of 3480 subjects with familial hypercholesterolemia identified according to the Dutch Lipid Clinic Network (DLCN) score were included in the database and genetic analysis was performed in 97.8% of subjects, with a mutation detection rate of 92.0% in patients with DLCN score 656. The establishment of the LIPIGEN network will have important effects on clinical management and it will improve the overall identification and treatment of primary dyslipidemias in Italy
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Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study
Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat
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Correction to: Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study
The original version of this article unfortunately contained a mistake
Prevalence, associated factors and outcomes of pressure injuries in adult intensive care unit patients: the DecubICUs study
Funder: European Society of Intensive Care Medicine; doi: http://dx.doi.org/10.13039/501100013347Funder: Flemish Society for Critical Care NursesAbstract: Purpose: Intensive care unit (ICU) patients are particularly susceptible to developing pressure injuries. Epidemiologic data is however unavailable. We aimed to provide an international picture of the extent of pressure injuries and factors associated with ICU-acquired pressure injuries in adult ICU patients. Methods: International 1-day point-prevalence study; follow-up for outcome assessment until hospital discharge (maximum 12 weeks). Factors associated with ICU-acquired pressure injury and hospital mortality were assessed by generalised linear mixed-effects regression analysis. Results: Data from 13,254 patients in 1117 ICUs (90 countries) revealed 6747 pressure injuries; 3997 (59.2%) were ICU-acquired. Overall prevalence was 26.6% (95% confidence interval [CI] 25.9–27.3). ICU-acquired prevalence was 16.2% (95% CI 15.6–16.8). Sacrum (37%) and heels (19.5%) were most affected. Factors independently associated with ICU-acquired pressure injuries were older age, male sex, being underweight, emergency surgery, higher Simplified Acute Physiology Score II, Braden score 3 days, comorbidities (chronic obstructive pulmonary disease, immunodeficiency), organ support (renal replacement, mechanical ventilation on ICU admission), and being in a low or lower-middle income-economy. Gradually increasing associations with mortality were identified for increasing severity of pressure injury: stage I (odds ratio [OR] 1.5; 95% CI 1.2–1.8), stage II (OR 1.6; 95% CI 1.4–1.9), and stage III or worse (OR 2.8; 95% CI 2.3–3.3). Conclusion: Pressure injuries are common in adult ICU patients. ICU-acquired pressure injuries are associated with mainly intrinsic factors and mortality. Optimal care standards, increased awareness, appropriate resource allocation, and further research into optimal prevention are pivotal to tackle this important patient safety threat