Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 43
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Br J Surg ; 108(7): 834-842, 2021 07 23.
Artículo en Inglés | MEDLINE | ID: mdl-33661306

RESUMEN

BACKGROUND: The extent of liver resection for tumours is limited by the expected functional reserve of the future liver remnant (FRL), so hypertrophy may be induced by portal vein embolization (PVE), taking 6 weeks or longer for growth. This study assessed the hypothesis that simultaneous embolization of portal and hepatic veins (PVE/HVE) accelerates hypertrophy and improves resectability. METHODS: All centres of the international DRAGON trials study collaborative were asked to provide data on patients who had PVE/HVE or PVE on 2016-2019 (more than 5 PVE/HVE procedures was a requirement). Liver volumetry was performed using OsiriX MD software. Multivariable analysis was performed for the endpoints of resectability rate, FLR hypertrophy and major complications using receiver operating characteristic (ROC) statistics, regression, and Kaplan-Meier analysis. RESULTS: In total, 39 patients had undergone PVE/HVE and 160 had PVE alone. The PVE/HVE group had better hypertrophy than the PVE group (59 versus 48 per cent respectively; P = 0.020) and resectability (90 versus 68 per cent; P = 0.007). Major complications (26 versus 34 per cent; P = 0.550) and 90-day mortality (3 versus 16 per cent respectively, P = 0.065) were comparable. Multivariable analysis confirmed that these effects were independent of confounders. CONCLUSION: PVE/HVE achieved better FLR hypertrophy and resectability than PVE in this collaborative experience.


Asunto(s)
Embolización Terapéutica/métodos , Hepatectomía/métodos , Neoplasias Hepáticas/terapia , Cuidados Preoperatorios/métodos , Anciano , Femenino , Estudios de Seguimiento , Venas Hepáticas , Humanos , Regeneración Hepática , Masculino , Persona de Mediana Edad , Vena Porta , Estudios Retrospectivos , Resultado del Tratamiento
2.
Br J Surg ; 105(1): 140-146, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29088504

RESUMEN

BACKGROUND: Rectal cancer surgery is technically challenging and depends on many factors. This study evaluated the ability of clinical and anatomical factors to predict surgical difficulty in total mesorectal excision. METHODS: Consecutive patients who underwent total mesorectal excision for locally advanced rectal cancer in a laparoscopic, robotic or open procedure after neoadjuvant treatment, between 2005 and 2014, were included in this retrospective study. Preoperative clinical and MRI data were studied to develop a surgical difficulty grade. RESULTS: In total, 164 patients with a median age of 61 (range 26-86) years were considered to be at low risk (143, 87·2 per cent) or high risk (21, 12·8 per cent) of surgical difficulty. In multivariable analysis, BMI at least 30 kg/m2 (P = 0·021), coloanal anastomosis (versus colorectal) (P = 0·034), intertuberous distance less than 10·1 cm (P = 0·041) and mesorectal fat area exceeding 20·7 cm2 (P = 0·051) were associated with greater surgical difficulty. A four-item score (ranging from 0 to 4), with each item (BMI, type of surgery, intertuberous distance and mesorectal fat area) scored 0 (absence) or 1 (presence), is proposed. Patients can be considered at high risk of a difficult or challenging operation if they have a score of 3 or more. CONCLUSION: This simple morphometric score may assist surgical decision-making and comparative study by defining operative difficulty before surgery.


Asunto(s)
Toma de Decisiones Clínicas/métodos , Técnicas de Apoyo para la Decisión , Imagen por Resonancia Magnética , Neoplasias del Recto/cirugía , Recto/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Neoplasias del Recto/diagnóstico por imagen , Recto/diagnóstico por imagen , Estudios Retrospectivos
3.
Diabet Med ; 32(12): 1648-51, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25981893

RESUMEN

AIM: Non-alcoholic fatty liver disease (NAFLD) is commonly associated with Type 2 diabetes. Recently, it has been suggested that NAFLD is also frequently associated with Type 1 diabetes and diabetic complications. In this study, we set out to determine whether Type 1 diabetes was associated with liver fat content measured using magnetic resonance imaging. METHODS: One hundred and twenty-eight patients with Type 1 diabetes, 264 patients with Type 2 diabetes and 67 participants without diabetes were included in this study. Hepatic steatosis was defined as a liver fat content > 5.5%. RESULTS: People with Type 1 diabetes and controls were similar for age and BMI. Liver fat content was significantly higher in patients with Type 2 diabetes than in patients with Type 1 diabetes and controls. In the control group, nine people (13.4%) had steatosis compared with six (4.7%) patients with Type 1 diabetes (P = 0.04). Among patients with Type 2 diabetes group, 166 (62.8%) had steatosis. In multivariate analysis that included patients with Type 1 diabetes and participants without diabetes, steatosis was associated only with BMI, whereas age, sex, statin therapy and Type 1 diabetes were not. In patients with Type 1 diabetes, there was no correlation between liver fat content and estimated glomerular filtration rate or carotid intima media thickness. CONCLUSIONS: Our data showed that Type 1 diabetes was not associated with an increased prevalence of steatosis. Moreover, our study provided no specific arguments concerning a link between liver fat content and diabetic complications in patients with Type 1 diabetes.


Asunto(s)
Diabetes Mellitus Tipo 1/complicaciones , Enfermedad del Hígado Graso no Alcohólico/complicaciones , Adulto , Factores de Edad , Anciano , Índice de Masa Corporal , Diabetes Mellitus Tipo 2/complicaciones , Femenino , Francia/epidemiología , Humanos , Hígado/patología , Imagen por Resonancia Magnética , Masculino , Tamizaje Masivo , Persona de Mediana Edad , Enfermedad del Hígado Graso no Alcohólico/diagnóstico , Enfermedad del Hígado Graso no Alcohólico/epidemiología , Enfermedad del Hígado Graso no Alcohólico/patología , Obesidad/complicaciones , Sobrepeso/complicaciones , Prevalencia , Estudios Prospectivos , Factores de Riesgo
4.
J Clin Pharm Ther ; 40(1): 83-90, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25413186

RESUMEN

WHAT IS KNOWN AND OBJECTIVE: Drug eluting beads (DEBs) theoretically improve the efficacy and safety of transarterial chemoembolization (TACE) in hepatocellular carcinoma (HCC). Nonetheless, their economic profile has not been assessed. Our retrospective before/after study aimed to compare efficacy, safety and economic profile of two strategies of TACE without (Period 1) or with the possibility of using DEBs (Period 2). METHODS: All HCC patients treated by TACE in our hospital between March 2006 and May 2013 were included. Economic analyses were performed from the French Public Health Insurance point of view according to the French Diagnosis-Related Group prospective payment system and from the analytic accountability. RESULTS AND DISCUSSION: One hundred and sixty-one patients were included. Median time to treatment failure and overall survival were 13.1 and 23.8 months in Period 1 vs. 14.1 and 30.2 months in Period 2 (P = 0.45 and P = 0.40). Mean hospital durations and tariffs were 14.9 ± 7.7 days and € 11 472 ± 5901 in Period 1 vs. 12.4 ± 8.4 days and € 7654 ± 4625 in Period 2 (P = 0.03 and P < 10(-4) ). WHAT IS NEW AND CONCLUSION: The possibility of using DEBs did not improve the prognosis in HCC patients treated by TACE. Nonetheless, it had a better medico-economic profile.


Asunto(s)
Antineoplásicos/administración & dosificación , Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica/economía , Quimioembolización Terapéutica/métodos , Portadores de Fármacos/administración & dosificación , Portadores de Fármacos/economía , Neoplasias Hepáticas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos/economía , Carcinoma Hepatocelular/economía , Carcinoma Hepatocelular/mortalidad , Análisis Costo-Beneficio/economía , Análisis Costo-Beneficio/métodos , Doxorrubicina/administración & dosificación , Costos de los Medicamentos , Aceite Etiodizado/administración & dosificación , Aceite Etiodizado/economía , Femenino , Humanos , Idarrubicina/administración & dosificación , Idarrubicina/economía , Neoplasias Hepáticas/economía , Neoplasias Hepáticas/mortalidad , Masculino , Microesferas , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento
5.
Ophthalmic Res ; 51(1): 42-5, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24217637

RESUMEN

AIMS: The link between diabetic retinopathy (DR) and adipokines is controversial. Some studies suggest that visceral fat and adipokines could be additional risk factors for DR. The aim of this study was to determine the relationship between abdominal fat or adipokine secretion and DR in patients with type 2 diabetes mellitus (DM). METHODS: A total of 179 patients with type 2 DM were included. Each patient underwent measurement of plasma adiponectin and leptin and an evaluation of body fat distribution (visceral and subcutaneous) with MRI. The severity of DR was evaluated according to the classification of the American Academy of Ophthalmology. Patients were classified in 3 groups: absence of DR, mild and moderate DR, and advanced DR (severe, proliferative and laser-treated DR). RESULTS: There were no significant differences between the 3 groups for adiponectin, leptin and visceral or subcutaneous fat accumulation. Patients with DR had a mean duration of diabetes, serum creatinine concentration and percentage of macroalbuminuria significantly higher than patients without DR (p < 0.001, p = 0.003 and p < 0.001, respectively). Serum adiponectin increased with the diabetic nephropathy stage (p = 0.007). CONCLUSIONS: Our study suggests that body fat distribution and adipokine secretion are not associated with DR in patients with type 2 DM.


Asunto(s)
Adiponectina/sangre , Distribución de la Grasa Corporal , Diabetes Mellitus Tipo 2 , Retinopatía Diabética , Leptina/sangre , Adulto , Anciano , Anciano de 80 o más Años , Albuminuria/sangre , Creatinina/sangre , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/patología , Retinopatía Diabética/sangre , Retinopatía Diabética/patología , Femenino , Humanos , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad
6.
Br J Cancer ; 103(9): 1335-42, 2010 Oct 26.
Artículo en Inglés | MEDLINE | ID: mdl-20978512

RESUMEN

BACKGROUND: We analysed whether the level of human epidermal growth factor receptor-2 (HER-2) amplification significantly influenced either pathological complete response (pCR) or recurrence-free survival (RFS) and overall survival (OS) after trastuzumab-based neoadjuvant therapy. METHODS: In all, 99 patients with an HER-2-amplified breast tumour treated with trastuzumab-based neoadjuvant therapy were included. Tumours were classified as low amplified (LA; 6-10 signals per nuclei) or highly amplified (HA; >10 signals). Pathological response was assessed according to Chevallier's classification (pCR was defined as grade 1 or 2). Median follow-up lasted 46 months (6-83). Cox uni- and multivariate analyses were performed. RESULTS: In all, 33 tumour samples were LA and 66 were HA. The pCR in HA tumours was significantly higher than in LA tumours (55% vs 24%, P=0.005), whereas no association was found between the pCR rate and tumour stage, grade or hormone receptor status. In multivariate analysis, the pathological nodal status (P=0.005) and adjuvant trastuzumab (P=0.037) were independently associated with RFS, whereas the level of HER-2 amplification nearly reached statistical significance (P=0.057). There was no significant difference between LA and HA tumours for OS (P=0.22, log-rank). CONCLUSION: The level of HER-2 gene amplification significantly influenced pCR but not RFS or OS in non-metastatic breast cancer treated with trastuzumab-based neoadjuvant therapy. However, RFS in patients with HA tumours tended to be shorter.


Asunto(s)
Anticuerpos Monoclonales/administración & dosificación , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Genes erbB-2 , Adulto , Anciano , Anticuerpos Monoclonales Humanizados , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Supervivencia sin Enfermedad , Femenino , Amplificación de Genes , Humanos , Persona de Mediana Edad , Terapia Neoadyuvante , Inducción de Remisión , Trastuzumab
7.
Gastroenterol Clin Biol ; 34(10): 529-33, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20864282

RESUMEN

The frequency of obesity has been increasing worldwide for 20 years. Many epidemiological studies support a correlation between obesity and increased risk of cancer, particularly digestive cancers in both genders, and gynaecological cancer in women. Currently, about 5% of cancers could be directly related to overweight. Carcinogenesis mechanisms induced by obesity involve insulin resistance, adipokine and angiogenic factor secretions, and inflammation. Experimental and clinical evidence suggest that insulin resistance plays a major role in carcinogenesis. Insulin and non-protein banded IGF-1, whose levels are increased in type 2 diabetes, stimulate cellular growth and inhibit apoptosis. Abnormalities in adipokine secretion by the central adipose tissue play a role at different stages of obesity-induced carcinogenesis. Excess of leptin and PAI-1, associated with a decrease in adiponectin secretion in obese people, contributes to carcinogenesis through cellular growth and angiogenesis stimulation. Remodelling of the extracellular matrix due to metalloproteinase stimulation by PAI-1 is also able to promote cell migration. Obesity not only increases cancer frequency, but is also liable to modify the prognosis and the response to antiangiogenic therapy of digestive cancers. This data suggests the need for clinicians to take into account overweight in cancer risk evaluation and to consider obesity and metabolic disorders as confounding factors in designing therapeutic studies.


Asunto(s)
Complicaciones de la Diabetes/etiología , Diabetes Mellitus Tipo 2/complicaciones , Neoplasias Gastrointestinales/etiología , Resistencia a la Insulina , Obesidad/complicaciones , Adipoquinas/sangre , Tejido Adiposo/metabolismo , Factores Biológicos/sangre , Índice de Masa Corporal , Complicaciones de la Diabetes/sangre , Diabetes Mellitus Tipo 2/sangre , Diabetes Mellitus Tipo 2/epidemiología , Medicina Basada en la Evidencia , Francia/epidemiología , Neoplasias Gastrointestinales/sangre , Neoplasias Gastrointestinales/epidemiología , Salud Global , Humanos , Incidencia , Insulina/metabolismo , Factor I del Crecimiento Similar a la Insulina/metabolismo , Leptina/sangre , Metaloproteasas/sangre , Obesidad/sangre , Obesidad/epidemiología , Inhibidor 1 de Activador Plasminogénico/sangre , Prevalencia , Pronóstico , Medición de Riesgo , Factores de Riesgo , Inhibidores de Serina Proteinasa/sangre
8.
Prog Urol ; 20(3): 161-71, 2010 Mar.
Artículo en Francés | MEDLINE | ID: mdl-20230936

RESUMEN

Therapeutic embolization in renal pathology is used for various conditions in cancerology, traumatology, urology, nephrology and for iatrogenic complications of percutaneous manoeuvers. Any department of vascular radiology may be requested to use this technique, especially in emergent traumatology or palliative cancerology. The authors study the various conditions that may benefit from these procedures and give the highlights of the main indications and the main types of embolic agents used. Complications, side effects and the major precautions are also reviewed.


Asunto(s)
Embolización Terapéutica , Enfermedades Renales/terapia , Embolización Terapéutica/efectos adversos , Embolización Terapéutica/métodos , Humanos , Enfermedades Renales/diagnóstico por imagen , Neoplasias Renales/diagnóstico por imagen , Neoplasias Renales/terapia , Radiografía Intervencional
9.
Diagn Interv Imaging ; 101(6): 347-353, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32360351

RESUMEN

The COVID-19 pandemic has deeply impacted the activity of interventional oncology in hospitals and cancer centers. In this review based on official recommendations of different international societies, but also on local solutions found in different expert large-volume centers, we discuss the changes that need to be done for the organization, safety, and patient management in interventional oncology. A literature review of potential solutions in a context of scarce anesthesiologic resources, limited staff and limited access to hospital beds are proposed and discussed based on the literature data.


Asunto(s)
Betacoronavirus , Instituciones Oncológicas/organización & administración , Infecciones por Coronavirus/epidemiología , Neoplasias/terapia , Pandemias , Neumonía Viral/epidemiología , Aerosoles , Factores de Edad , Anestesia General , Anestesiología/estadística & datos numéricos , Biopsia/efectos adversos , Biopsia/métodos , COVID-19 , Prueba de COVID-19 , Carcinoma Hepatocelular/terapia , Carcinoma de Células Renales/terapia , Quimioembolización Terapéutica/métodos , Técnicas de Laboratorio Clínico/métodos , Neoplasias del Colon/patología , Infecciones por Coronavirus/complicaciones , Infecciones por Coronavirus/diagnóstico , Infecciones por Coronavirus/transmisión , Bases de Datos Factuales , Personal de Salud/estadística & datos numéricos , Recursos en Salud/organización & administración , Recursos en Salud/provisión & distribución , Capacidad de Camas en Hospitales/estadística & datos numéricos , Hospitalización/estadística & datos numéricos , Humanos , Hipertermia Inducida/métodos , Neoplasias Renales/terapia , Neoplasias Hepáticas/terapia , Neoplasias Pulmonares/secundario , Neoplasias Pulmonares/terapia , Neoplasias/complicaciones , Cuidados Paliativos/métodos , Neumonía Viral/complicaciones , Neumonía Viral/diagnóstico , Neumonía Viral/transmisión , SARS-CoV-2 , Triaje
10.
Diagn Interv Imaging ; 101(11): 707-713, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33012694

RESUMEN

PURPOSE: The purpose of this study was to evaluate the feasibility, safety and efficacy of percutaneous ablation (PA) of obscure hypovascular liver tumors in challenging locations using arterial CT-portography (ACP) guidance. MATERIALS AND METHODS: A total of 26 patients with a total of 28 obscure, hypovascular malignant liver tumors were included. There were 18 men and 6 women with a mean age of 58±14 (SD) years (range: 37-75 years). The tumors had a mean diameter of 14±10 (SD) mm (range: 7-24mm) and were intrahepatic cholangiocarcinoma (4/28; 14%), liver metastases from colon cancer (18/28; 64%), corticosurrenaloma (3/28; 11%) or liver metastases from breast cancer (3/28; 11%). All tumors were in challenging locations including subcapsular (14/28; 50%), liver dome (9/28; 32%) or perihilar (5/28; 18%) locations. A total of 28 PA (12 radiofrequency ablations, 11 microwave ablations and 5 irreversible electroporations) procedures were performed under ACP guidance. RESULTS: A total of 67 needles [mean: 2.5±1.5 (SD); range: 1-5] were inserted under ACP guidance, with a 100% technical success rate for PA. Median total effective dose was 26.5 mSv (IQR: 19.1, 32.2 mSv). Two complications were encountered (pneumothorax; one abscess both with full recovery), yielding a complication rate of 7%. No significant change in mean creatinine clearance was observed (80.5mL/min at baseline and 85.3mL/min at day 7; P=0.8). Post-treatment evaluation of the ablation zone was overestimated on ACP compared with conventional CT examination in 3/28 tumors (11%). After a median follow-up of 20 months (range: 12-35 months), local tumor progression was observed in 2/28 tumours (7%). CONCLUSION: ACP guidance is feasible and allows safe and effective PA of obscure hypo-attenuating liver tumors in challenging locations without damaging the renal function and with acceptable radiation exposure. Post-treatment assessment should be performed using conventional CT or MRI to avoid size overestimation of the ablation zone.


Asunto(s)
Neoplasias de los Conductos Biliares , Carcinoma Hepatocelular , Ablación por Catéter , Neoplasias Hepáticas , Adulto , Anciano , Carcinoma Hepatocelular/cirugía , Femenino , Humanos , Neoplasias Hepáticas/diagnóstico por imagen , Neoplasias Hepáticas/cirugía , Masculino , Persona de Mediana Edad , Portografía , Tomografía Computarizada por Rayos X , Resultado del Tratamiento
11.
J Radiol ; 90(5 Pt 1): 583-8, 2009 May.
Artículo en Francés | MEDLINE | ID: mdl-19503046

RESUMEN

PURPOSE: To demonstrate the value of 3.0T MR imaging for the detection of rotator cuff tendon tears and surgical planning by correlating imaging findings to surgical findings. Materials and methods. Prospective follow-up of patients who underwent 3.0T MR imaging of the shoulder in our department between November 2005 and June 2007. Surgical findings were correlated to imaging findings for 48 patients who underwent surgery: detection, size, partial thickness or complete, and tendon edges. RESULTS: In this patient group, the positive predictive value of MRI for detecting surgical tears was 100% (100% of complete tears and 92% of partial thickness tears). No change in surgical management was recorded when arthroscopy was performed based on MRI findings (size of tear). CONCLUSION: 3.0 T MRI is valuable for the detection of small tears, especially for partial thickness tears due to increased spatial resolution. The identification of surgical candidates and surgical planning are improved due to more accurate measurements of tear size and quality of the tendon edges.


Asunto(s)
Aumento de la Imagen , Procesamiento de Imagen Asistido por Computador , Imagen por Resonancia Magnética , Lesiones del Manguito de los Rotadores , Traumatismos de los Tendones/diagnóstico , Artroscopía , Artefactos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/diagnóstico , Recurrencia , Manguito de los Rotadores/patología , Manguito de los Rotadores/cirugía , Rotura , Sensibilidad y Especificidad , Traumatismos de los Tendones/cirugía
12.
J Radiol ; 90(11 Pt 1): 1695-702, 2009 Nov.
Artículo en Francés | MEDLINE | ID: mdl-19953057

RESUMEN

The purpose of this article is to present a fast and clinically usable technique for quantification of liver steatosis. This technique, based on a triple-echo gradient-echo sequence (in-phase, opposed-phase, in-phase), has recently been validated with excellent correlation and accuracy compared to proton MR spectroscopy. The theoretical principles are reviewed, with emphasis on the need to correct for the T2* decay inherent to the use of in-phase and opposed-phase sequences. T1 decay also is negligible due to the use of a low flip angle (20 degrees). The advantage of this technique is that it can generate a parametric representation (map) of liver steatosis, after fast and simple post-processing, based on measurements from standard images (addition, subtraction, division, multiplication) available on the MR scanning console. This parametric method allows quantification of steatosis in focal lesions. The main limitation of the technique relates to its ambiguity with lipid content over 50%, a phenomenon that does not occur with liver steatosis.


Asunto(s)
Hígado Graso/patología , Imagenología Tridimensional , Imagen por Resonancia Magnética , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Tiempo
13.
Diagn Interv Imaging ; 100(11): 689-697, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31281074

RESUMEN

PURPOSE: The purpose of this study was to assess liver function deterioration, as assessed using the model for end-stage liver disease (MELD) score variations, following transarterial chemo-embolization (TACE) versus selective internal radiation therapy (SIRT) in patients with unresectable unilobar hepatocellular carcinomas (HCC). PATIENTS AND METHODS: We retrospectively evaluated all patients who underwent a single conventional TACE or SIRT procedure in our department from May 2013 to May 2018 for unilobar unresectable HCC. A total of 86 patients (76 men, 20 women; mean age, 65.5 years) were included. There were 63 patients in the TACE group [56 men, 7 women; mean age, 65.1±9.6 (SD) years] and 23 patients in the SIRT group [20 men, 3 women; mean age, 70±9.2 (SD) years]. Delta MELD, defined as post treatment minus pre-treatment MELD score, was considered for liver function deterioration and compared between patients who underwent single lobar treatment of SIRT versus TACE. RESULTS: Patients in SIRT group had significant higher tumor burden, alpha-fetoprotein serum level, and rates of macroscopic vessel invasion. Mean pre-treatment MELD scores did not differ between TACE [mean, 8.41±1.71 (SD); range: 7.24-9.24] and SIRT groups [mean, 8.36±1.74 (SD); range: 7.07-9.21] (P=0.896) as well as Child-Pugh class and albumin-bilirubin (ALBI) grade distribution. However, following treatment, mean DeltaMELD was greater in TACE group (mean, 0.83±1.83 [SD]; range: -0.30--1.31) than in SIRT group (mean, -0.13±1.06 [SD]; range: -0.49-0.32) (P=0.021). At multivariate analysis, SIRT treatment was independently associated with a lower DeltaMELD score than TACE (R=-0.955 [-1.68; -0.406]; P=0.017;). CONCLUSION: Whereas performed in patients with higher tumor burden, SIRT resulted in lower degrees of liver function worsening as assessed using MELD score variations.


Asunto(s)
Carcinoma Hepatocelular/terapia , Embolización Terapéutica/métodos , Neoplasias Hepáticas/terapia , Anciano , Carcinoma Hepatocelular/patología , Carcinoma Hepatocelular/radioterapia , Quimioembolización Terapéutica/métodos , Enfermedad Hepática en Estado Terminal , Femenino , Humanos , Pruebas de Función Hepática , Neoplasias Hepáticas/patología , Neoplasias Hepáticas/radioterapia , Masculino , Análisis Multivariante , Invasividad Neoplásica , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Carga Tumoral , alfa-Fetoproteínas/análisis
14.
Rev Neurol (Paris) ; 164(6-7): 588-94, 2008.
Artículo en Francés | MEDLINE | ID: mdl-18565358

RESUMEN

RATIONALE: Second-line chemotherapy is disappointing in recurrent high-grade gliomas. Dramatic responses in recurrent high-grade gliomas have been reported in a recent monocentric trial with a novel association combining bevacizumab (anti-VEGF monoclonal antibody agent) and irinitecan. OBJECTIVE: To report the experience of the ANOCEF group (French speaking neuro-oncology association) using the bevacizumab-irinotecan combination in recurrent high-grade gliomas. METHODS: Eight centers were involved in this retrospective multicenter study. Bevacizumab-irinotecan was delivered as previously described in a compassional setting to non-selected patients suffering from a high-grade glioma (WHO grade III and IV). Response rate at two months of the onset of the treatment was analyzed using the Macdonald criteria. The toxicity profile of the treatment was also investigated. RESULTS: From 2006 to 2007, 77 patients were treated (median age: 52 years; median Karnofsky score: 70) for a recurrent high-grade glioma (49 grade IV, 28 grade III). At two months, the response rates were objective response=36% (54% in grade III and 27% in grade IV); stable disease=39%; progressive disease=13%; patients not evaluable because of a rapid fatal clinical deterioration=12%. Improvement was noted in 49% of patients. Among the main toxicities, we noted; intratumoral hemorrage (n=5 with spontaneous regression in three) and thromboembolic complications including venous thrombophlebitis (n=4), pulmonary embolism (n=2), myocardial infarction (n=1), grade III-IV hematotoxicity (n=2), reversible leukoencephalopathy (n=1). CONCLUSION: This retrospective multicenter study adds further arguments in favor of the promising results of this new combination and its potential rapidity of action in recurrent high-grade gliomas. Antiangiogenic agents expose the patients to a well-known risk of thromboembolic and hemorragic complications, necessitating careful follow-up and patient selection in light of the cardiovascular contraindications.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias Encefálicas/tratamiento farmacológico , Glioma/tratamiento farmacológico , Adulto , Anciano , Anticuerpos Monoclonales/administración & dosificación , Anticuerpos Monoclonales Humanizados , Antineoplásicos Fitogénicos/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Bevacizumab , Neoplasias Encefálicas/patología , Camptotecina/administración & dosificación , Camptotecina/análogos & derivados , Preescolar , Femenino , Glioma/patología , Humanos , Irinotecán , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Estudios Retrospectivos
15.
Prog Urol ; 18(5): 266-74, 2008 May.
Artículo en Francés | MEDLINE | ID: mdl-18538270

RESUMEN

Xanthogranulomatous pyelonephritis is a rare form of chronic pyelonephritis, which frequently has a pseudotumoral appearance, as a result of which differential diagnosis with malignant renal neoplasia is difficult, especially as there are no specific signs of this lesion. The aim of this article is to notice the various histological, clinical and radiological characteristics, and the different modalities of diagnostic and treatment of this affection.


Asunto(s)
Diagnóstico por Imagen , Pielonefritis Xantogranulomatosa/diagnóstico , Diagnóstico Diferencial , Humanos , Pielonefritis Xantogranulomatosa/epidemiología , Pielonefritis Xantogranulomatosa/fisiopatología , Pielonefritis Xantogranulomatosa/terapia
16.
Diagn Interv Imaging ; 99(9): 527-535, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29609903

RESUMEN

PURPOSE: To report current practices of transarterial chemoembolization (TACE) by interventional radiologists (IR) for hepatocellular carcinoma (HCC) through a French national survey. MATERIALS AND METHODS: An electronic survey was sent by e-mail to 232 IRs performing TACE in 32 private or public centers. The survey included 66 items including indications for TACE, technical aspects of TACE, other locally available treatments for HCC, follow-up imaging and general aspects of interventional radiology practices. RESULTS: A total of 64 IRs (64/232; 27%) answered the survey. Each IR performed a mean of 49±45 (SD) TACE procedures per year. Marked variations in indications for TACE in HCC were observed. Six percent of IRs (4/64) treated only patients with Barcelona Clinic Liver Cancer (BCLC) stage B HCC. Antibioprophylaxis was not used by 43/64 of IRs (67%). The number of HCC nodules was considered to select conventional TACE versus drug-eluting beadsTACE (DEB-TACE) by 17/49 IRs (35%) followed by patient performance status and Child-Pugh score by 6/49 IRs (12%). Seventy-three percent of IRs (45/62) treated nodules selectively in patients with unilobar disease with cTACE. Thirty-three percent of IRs (21/64) planned systematically a second TACE session. Doxorubicin was the most frequently used drug (52/64; 81%) and 15/64 IRs (23%) used gelatine sponge as the only embolic agent. For DEB-TACE, 100-300µm beads were used by 26/49 IRs (53%) and no additional embolization was performed by 19/48 IRs (39%). Monopolar radiofrequency technique was widely available (59/63; 94%) compared to selective internal radiation therapy (37/64; 58%). Magnetic resonance imaging was used for follow-up by 13/63 IRs (20%). CONCLUSION: Current practices of TACE for HCC varied widely among IRs suggesting a need for more standardized practices.


Asunto(s)
Carcinoma Hepatocelular/terapia , Quimioembolización Terapéutica/métodos , Quimioembolización Terapéutica/estadística & datos numéricos , Neoplasias Hepáticas/terapia , Pautas de la Práctica en Medicina/estadística & datos numéricos , Profilaxis Antibiótica/estadística & datos numéricos , Antibióticos Antineoplásicos/administración & dosificación , Carcinoma Hepatocelular/diagnóstico por imagen , Toma de Decisiones Clínicas , Doxorrubicina/administración & dosificación , Francia , Humanos , Neoplasias Hepáticas/diagnóstico por imagen , Imagen por Resonancia Magnética/estadística & datos numéricos , Recurrencia Local de Neoplasia/terapia , Encuestas y Cuestionarios
17.
Can J Urol ; 14(2): 3507-9, 2007 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-17466157

RESUMEN

We report the first case, to our knowledge, of xanthogranulomatous pyelonephritis (XGP) with psoas abscess occurring during pregnancy. A 37-year-old woman in the third trimester of pregnancy presented with low back pain and a fever. From sonographic features, a multidisciplinary team decided to perform computed tomography of the abdomen with contrast agent injection, which strongly suggested diffuse XGP of the left kidney with a psoas abscess. Cesarean section at 32 weeks was followed by extended nephrectomy. Pathological examination of the operative specimen confirmed the diagnosis. Outcomes were favorable in the mother and baby. The diagnosis and treatment of XGP during pregnancy are discussed.


Asunto(s)
Complicaciones del Embarazo/diagnóstico , Absceso del Psoas/diagnóstico , Pielonefritis Xantogranulomatosa/diagnóstico , Adulto , Femenino , Humanos , Nefrectomía , Embarazo , Absceso del Psoas/complicaciones , Pielonefritis Xantogranulomatosa/complicaciones , Pielonefritis Xantogranulomatosa/cirugía
18.
J Radiol ; 88(2): 259-62, 2007 Feb.
Artículo en Francés | MEDLINE | ID: mdl-17372553

RESUMEN

OBJECTIVE: Nasopharyngeal tonsilloliths are less well known to radiologists than palatine tonsil lithiases. The possibility of routinely available fine slices during CT scans of the head and neck prompted a retrospective study on the causes and radiological signs and patterns of nasopharyngeal tonsilloliths. MATERIAL AND METHODS: A total of 515 CT scans were retrospectively re-examined looking for calcifications of the posterior wall of the nasopharynx. One patient with this type of calcification underwent a cerebral MRI as part of the etiological workup of his faintness, which also provided a study of the nasopharyngeal wall. The size, density, and position of these calcium concretions were analyzed with CT in all cases. RESULTS: In 31 patients (18 men, 13 women), we discovered one or several calcifications in the pharyngeal mucous area, between 2 and 5.5 mm in size, with a median density of 202 HU. In two cases, we observed that these calcifications adhered to an adenoid cyst, whereas in three cases, the patients had both palatine tonsil and nasopharyngeal calcifications. None of the 31 patients had previously had an adenoidectomy. Sagittal CT and MRI images clearly localized all these calcifications before the pharyngobasilar fascia. DISCUSSION: The position of these nasopharyngeal calcifications in front of the pharyngobasilar fascia means that a calcified vestige of the notochord can be ruled out. Moreover, the simultaneous presence of nasopharyngeal tonsil and palatine tonsil calcifications in three patients is an additional argument for considering these calcifications of the posterior wall of the nasopharynx as tonsilloliths, all of which, representing 6% of the CTs in our series, were asymptomatic. CONCLUSION: The nasopharyngeal tonsilloliths are stones less than 1 cm in size lodged in the pharyngeal tonsils that are frequently detected on CT when there are no clinical symptoms.


Asunto(s)
Litiasis/diagnóstico , Imagen por Resonancia Magnética , Enfermedades Nasofaríngeas/diagnóstico , Tomografía Computarizada por Rayos X , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos
19.
J Radiol ; 88(12): 1845-53, 2007 Dec.
Artículo en Francés | MEDLINE | ID: mdl-18235345

RESUMEN

Liver steatosis may evolve into steatohepatitis then cirrhosis with related complications. It may also contribute to hepatocellular failure, sometimes fatal after major hepatectomy, especially in the setting of liver transplantation with living donor. Imaging must allow non-invasive detection and accurate quantification. In and out of phase MR imaging routinely performed in clinical practice is a simple and robust means of achieving these goals. In this article, we will review the histological, pathophysiologic, and clinical features of liver steatosis and the key points of in and out of phase pulse sequences and underlying physical principles. The T2* relaxation, cause of a loss of signal between both echo times must be taken into account. Echo times must be known for image interpretation, and optimized, especially at 3T. Finally, the T1 of lipids and water is different and causes T1 effects that may lead to quantification errors while being advantageous for image interpretation. The combination of these factors allows detection and quantification of liver steatosis in routine clinical practice.


Asunto(s)
Hígado Graso/diagnóstico , Aumento de la Imagen/métodos , Imagen por Resonancia Magnética/métodos , Adipocitos/patología , Hígado Graso/patología , Hígado Graso/fisiopatología , Humanos , Trasplante de Hígado , Triglicéridos/metabolismo
20.
Diagn Interv Imaging ; 97(12): 1275-1285, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-27840080

RESUMEN

Cystic pancreatic lesions vary from benign to malignant entities and are increasingly detected on cross-sectional imaging. Knowledge of the imaging appearances of cystic pancreatic lesions may help radiologists in their diagnostic reporting and management. In this review, we discuss the morphologic classification of these lesions based on a diagnostic algorithm as well as the management of these lesions.


Asunto(s)
Imagen por Resonancia Magnética , Quiste Pancreático/diagnóstico por imagen , Neoplasias Pancreáticas/diagnóstico por imagen , Tomografía Computarizada por Rayos X , Algoritmos , Carcinoma Ductal Pancreático/diagnóstico por imagen , Pancreatocolangiografía por Resonancia Magnética , Diagnóstico Diferencial , Hallazgos Incidentales , Páncreas/diagnóstico por imagen , Quiste Pancreático/terapia , Sensibilidad y Especificidad
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA