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1.
Clin Nucl Med ; 46(1): e47-e48, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-33156046

RESUMEN

Seminal vesicles are paired secretory glands located posterior to the bladder in men that produce seminal fluid to maintain sperm. Seminal vesicle reflux into the prostatic ducts may be associated with prostatitis in older patients or may represent a very rare complication of transurethral prostate resection in patients with prostatic cancer. This condition is frequently accidentally diagnosed on excretory urography and/or retrograde urethrogram. Clinical presentation includes pain, fever, recurrent epididymitis-prostatitis, and post void dribbling.


Asunto(s)
Colina/análogos & derivados , Tomografía Computarizada por Tomografía de Emisión de Positrones , Neoplasias de la Próstata/diagnóstico por imagen , Neoplasias de la Próstata/cirugía , Vesículas Seminales/fisiopatología , Resección Transuretral de la Próstata/efectos adversos , Anciano , Diagnóstico Diferencial , Humanos , Masculino , Persona de Mediana Edad , Invasividad Neoplásica , Neoplasias de la Próstata/patología , Prostatitis/etiología , Prostatitis/fisiopatología
2.
J Cachexia Sarcopenia Muscle ; 8(1): 40-47, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27897393

RESUMEN

BACKGROUND: Energy homeostasis is mediated by the hypothalamus, whose inflammation-induced functional derangements contribute to the onset of anorexia in cancer. By using functional magnetic resonance imaging (fMRI), we determined the patterns of hypothalamic activation after oral intake in anorexic (A), non-anorexic (NA) cancer patients, and in controls (C). METHODS: Lung cancer patients were considered. Hypothalamic activation was recorded in A and NA patients and in C by fMRI, before (T0), immediately after (T1) the administration of an oral nutritional supplement, and after 15 min (T2). The grey of the hypothalamus and Blood Oxygen Level Dependent (BOLD) intensity were calculated and normalized for basal conditions. Interleukin (IL)-1, IL-6, tumour necrosis factor (TNF)-α, ghrelin, and leptin plasma levels were measured. A statistical parametric mapping was used. RESULTS: Thirteen lung cancer patients (7 M, 6 F; 9A, 4NA) and 2 C (1 M, 1 F) were enrolled. Controls had the lowest BOLD intensity. At all-time points, anorexic patients showed lower hypothalamic activity compared with NA (P < 0.001) (T0: 585.57 ± 55.69 vs. 667.92 ± 33.18, respectively; T1: 536.50 ± 61.70 vs. 624.49 ± 55.51, respectively; T2: 556.44 ± 58.51 vs. 615.43 ± 71.50, respectively). Anorexic patients showed greater BOLD signal reduction during T0-T1 than NA (-8.5% vs. -6.80%, P < 0.001). Independently from the presence of anorexia, BOLD signals modification before and after oral challenge correlated with basal values of IL-1 and ghrelin (P < 0.001). CONCLUSIONS: Hypothalamic activity in A cancer patients is reduced respect to NA and responds differently to oral challenges. This suggests a central control of appetite dysregulation during cancer anorexia, before, and after oral intake.


Asunto(s)
Anorexia/diagnóstico por imagen , Apetito , Carcinoma de Pulmón de Células no Pequeñas/diagnóstico por imagen , Hipotálamo/diagnóstico por imagen , Neoplasias Pulmonares/diagnóstico por imagen , Anciano , Anciano de 80 o más Años , Anorexia/sangre , Carcinoma de Pulmón de Células no Pequeñas/sangre , Citocinas/sangre , Suplementos Dietéticos , Femenino , Ghrelina/sangre , Humanos , Inflamación/sangre , Inflamación/diagnóstico por imagen , Leptina/sangre , Neoplasias Pulmonares/sangre , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad
3.
Eur J Haematol ; 80(6): 515-22, 2008 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18284626

RESUMEN

BACKGROUND AND OBJECTIVE: One of the chief causes of death in patients with beta-thalassemia major (TM) remains heart failure due to iron overload. We investigated possible differences in myocardial function between a population of young asymptomatic patients with TM and healthy controls all of whom underwent an echocardiographic study, including tissue Doppler (TDI) and strain imaging (SI) analysis and cardiac magnetic resonance imaging (MRI). METHODS: 30 young asymptomatic patients with TM (16 taking deferoxamine and 14 taking deferiprone) and 30 healthy subjects underwent a cardiac MRI with T2* technique and an echocardiographic evaluation including systolic myocardial velocities (Sm), early (Em) and late (Am) diastolic velocities and systolic strain (S) at the level of basal segments of the lateral left ventricle (LV), interventricular septum (Septal) and lateral right ventricle (RV) wall. The differences in T2* values and echocardiographic parameters were also compared in patients with TM subgrouped according to iron chelation therapy. RESULTS: The following TDI and SI measures were lower in patients than in controls: LV-Sm (P < 0.05), S-LV (P < 0.001), Septal-Sm (P < 0.05), Septal-Em (P < 0.001), S-Septal (P < 0.001), RV-Sm (P < 0.001), RV-Em (P < 0.001), RV-Em/Am (P < 0.05) and S-RV (P < 0.05). Myocardial function was better in the patients receiving deferiprone than those receiving deferoxamine. T2* values were higher in controls than in patients with TM and in those treated with deferiprone than those treated with deferoxamine. MRI data well correlated with SI parameters. CONCLUSIONS: Study underlines that, even in a population of young, asymptomatic and well-chelated patients with TM, there is an impairment of myocardial function and that this condition could be easily detected by more advanced ultrasound techniques such as TDI and SI. The better indices of myocardial function in patients treated with deferiprone clearly needs confirmation from larger prospective studies.


Asunto(s)
Corazón/fisiopatología , Talasemia beta/fisiopatología , Adulto , Ecocardiografía , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Estudios Retrospectivos
4.
Eur J Haematol ; 79(4): 322-9, 2007 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-17655692

RESUMEN

BACKGROUND: Despite recent progress in iron chelation therapy, sudden cardiac death due to malignant ventricular arrhythmias remains a vexing, clinical problem in patients with beta-thalassemia major (TM). In this study we assessed whether the major indices of QT variability, emerging tools for risk stratification of sudden cardiac death, differ in young asymptomatic patients with TM and healthy persons. METHODS: Thirty patients with TM and 30 healthy control subjects underwent a 5-min electrocardiography recording to calculate the following variables: QT variance (QT(v)), QT(v) normalized for mean QT (QTVN) and QT variability index (QTVI). All subjects also underwent a two-dimensional and Doppler echocardiography study and magnetic resonance imaging (MRI) to determine cardiac and hepatic T2* values. RESULTS: No differences were observed in clinical and conventional echo-Doppler findings in healthy control subjects and patients with TM whereas QT(v), QTVN and QTVI values were significantly higher in patients than those in controls (QT(v), P < 0.001; QTVN, P < 0.05 and QTVI, P < 0.001) and cardiac T2* and hepatic MRI T2* values were significantly lower in patients with TM (P < 0.001). The indices of temporal QT variability correlated significantly with MRI data. CONCLUSIONS: Young asymptomatic patients with TM have increased cardiac repolarization variability as assessed by QT variability indices, probably due to cardiac iron deposition. These easily assessed, non-invasive markers could be used to identify increased myocardial repolarization lability early in asymptomatic patients with TM.


Asunto(s)
Talasemia beta/fisiopatología , Adolescente , Adulto , Muerte Súbita Cardíaca/etiología , Muerte Súbita Cardíaca/patología , Ecocardiografía Doppler , Electrocardiografía , Femenino , Humanos , Hierro/metabolismo , Masculino , Miocardio/metabolismo , Miocardio/patología , Ajuste de Riesgo , Talasemia beta/complicaciones , Talasemia beta/metabolismo , Talasemia beta/patología
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