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1.
Am J Transplant ; 18(7): 1680-1689, 2018 07.
Artículo en Inglés | MEDLINE | ID: mdl-29247469

RESUMEN

We report the results of a study of survival, liver and kidney functions, and growth with a median follow-up of 24 years following liver transplantation in childhood. From 1988 to 1993, 128 children underwent deceased donor liver transplantation (median age: 2.5 years). Twenty-year patient and graft survival rates were 79% and 64%, respectively. Raised serum aminotransferase and/or γ-glutamyl transferase activities were present in 42% of survivors after a single transplantation. Graft histology (35 patients) showed signs of chronic rejection in 11 and biliary obstruction in 5. Mean total fibrosis scores were 4.5/9 and 3/9 in patients with abnormal and normal serum liver tests, respectively. Glomerular filtration rate was <90 mL·min-1 in 35 survivors, including 4 in end-stage renal disease who were undergoing dialysis or had undergone renal transplantation. Median final heights were 159 cm for women and 172 cm for men; final height was below the target height in 37 patients. Twenty-year survival after childhood liver transplantation may be close to 80%, and final height is within the normal range for most patients. However, chronic kidney disease or altered liver biochemistries are present in over one third of patients, which is a matter of concern for the future.


Asunto(s)
Rechazo de Injerto/mortalidad , Supervivencia de Injerto , Fallo Renal Crónico/mortalidad , Trasplante de Hígado/mortalidad , Complicaciones Posoperatorias , Diálisis Renal/estadística & datos numéricos , Sobrevivientes/estadística & datos numéricos , Adolescente , Adulto , Niño , Preescolar , Femenino , Estudios de Seguimiento , Francia/epidemiología , Tasa de Filtración Glomerular , Rechazo de Injerto/epidemiología , Humanos , Incidencia , Lactante , Fallo Renal Crónico/epidemiología , Pruebas de Función Renal , Masculino , Pronóstico , Factores de Riesgo , Tasa de Supervivencia , Adulto Joven
2.
Artículo en Francés | MEDLINE | ID: mdl-25724597

RESUMEN

INTRODUCTION: Breast cancer is the most frequent feminine cancer in France and its incidence increases steadily. The time of access to medical care is an indicator of the quality of the treatments recommended by the Plan Cancer 2009-2013, as it influences the diagnosis and reduces psychological morbidity during the pre-diagnosis phase. The one-day diagnosis is a recently initiated concept, which offers to get the results of the biopsy on the day it is performed and facilitates the setting-up of therapeutic care with the surgeon met during the one-day medical consultations. The aim of this study is to evaluate the satisfaction of patients who benefited from a one-day breast lesion diagnosis, as well as confirm the decrease of time of access to medical treatment. METHODS: This is an observational, non-interventional and single-centre study based on 27 patients who benefited from one-day breast lesions diagnosis over two years. The patients were only included who had a classified lesion ACR 4 or 5 and visible in the ultrasound. We analyzed the histological concordance between the biopsy and the definitive histology, the time of access to medical care, and the therapeutic treatments We analyzed the psychological impact of such an organization by sending to the patients a questionnaire including the Psychological Consequence Questionnaire (PCQ) and the Breast Cancer Anxiety Indicator (BCA) allowing to estimate the anxiety generated by the pre-diagnostic phase, the DC-Sat allowing to estimate the satisfaction of the consultation of announcement, as well as the same day diagnosis benefit. RESULTS: The patients were 59.8 years old in average [33-87]. The average time between the date of the mammography and the one-day diagnosis consultation (including the biopsy) was 15.0 days [0-60]. Fifty-seven percent of the patients considered this time as short. The average time between the biopsy date and the start of the treatment was 15.9 days [4-30]. The one-day diagnosis took an average of 1.6 days [1-5]. The results of the PCQ showed an important emotional impact during the diagnosis phase, and the average BCA score reached an average of 3.9 on a scale of 5. However, the patients were very satisfied with the diagnosis consultation with an average of 8.7 on a scale of 10, and 95% think the one-day diagnosis is beneficial to the patients. DISCUSSION: This study shows that the one-day breast-damage diagnosis enables to improve the time of access to care, and meets the current recommendations. Even though faster access to treatment does not reduce the psychological morbidity of awaiting diagnosis, the patients express their satisfaction and find the rapidity of the pre-diagnosis phase beneficial. CONCLUSION: In view of this study, the one-day breast-damage diagnosis appears to be a quality feature in the process of access to care and treatment of the patients.


Asunto(s)
Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/psicología , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/diagnóstico por imagen , Femenino , Humanos , Persona de Mediana Edad , Radiografía , Factores de Tiempo
3.
Int J Antimicrob Agents ; 43(6): 566-9, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24787480

RESUMEN

Amphotericin B is a powerful polyene antifungal drug used for treating systemic fungal infections and is usually administered for a short period. Side effects after prolonged use are unknown in humans. Here we report the case of a 28-year-old man suffering from chronic granulomatous disease (CGD), treated for invasive cerebral aspergillosis with liposomal amphotericin B (L-AmB) for a very long time (8 consecutive years). We describe the efficacy and safety of this treatment in the long term. Aspergillosis was kept under control as long as L-AmB therapy was maintained, but relapsed when the dose was reduced. No overt renal toxicity was noted. The patient gradually developed hepatosplenomegaly and pancytopenia. Abnormalities of bone marrow were similar to the sea-blue histiocyte syndrome. Liver biopsy showed images of nodular regenerative hyperplasia related to CGD as well as a histiocytic storage disease. We discuss the very prolonged use of L-AmB leading to the development of a lysosomal storage disease.


Asunto(s)
Anfotericina B/efectos adversos , Anfotericina B/uso terapéutico , Antifúngicos/efectos adversos , Antifúngicos/uso terapéutico , Enfermedades por Almacenamiento Lisosomal/inducido químicamente , Adulto , Biopsia , Enfermedad Granulomatosa Crónica/complicaciones , Histocitoquímica , Humanos , Hígado/patología , Masculino , Neuroaspergilosis/tratamiento farmacológico
4.
Eur J Surg Oncol ; 39(9): 981-7, 2013 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-23845705

RESUMEN

AIMS: The discovery of unexpected peritoneal carcinomatosis (PC) at the time of hepatectomy for colorectal liver metastases (CLM) is usually considered a contraindication for continuing resection. The first aim of this study was to assess the long-term outcome of patients operated for CLM, and who presented unexpected PC during laparotomy. The second aim was to identify preoperative predictors of PC. METHODS: All patients at a single center between 1985 and 2010 who had unexpected PC, discovered during planed resection of CLM, and negative preoperative imaging for PC were selected. Clinicopathological data were retrospectively analyzed to assess survival outcomes and to identify predictors of unexpected PC. RESULTS: Out of the 1340 operated patients for CLM, 42 (3%) had unexpected PC. Only patients (n = 30; 71%) who had PC limited to two abdominal regions (Median peritoneal cancer index (PCI): 2 (1-6)) were resected. Twelve patients were not resected due to the extent of peritoneal disease. The overall survival of the 30 patients resected for CLM who had limited PC was 18% at 5 years (median: 42 months). On multivariate analysis, a previous history of PC, a pT4 stage and bilobar CLM were independent predictors of unexpected PC. CONCLUSION: Unexpected PC should not be a contraindication for resection provided that the PCI is low and complete resection of all peritoneal and hepatic lesions can be achieved. Previous history of PC, a pT4 primary tumor and bilobar CLM are associated with increased risk of unexpected PC.


Asunto(s)
Carcinoma/secundario , Neoplasias Colorrectales/patología , Hepatectomía , Neoplasias Hepáticas/secundario , Neoplasias Peritoneales/secundario , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma/cirugía , Estudios de Cohortes , Contraindicaciones , Femenino , Humanos , Neoplasias Hepáticas/cirugía , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Neoplasias Peritoneales/cirugía , Pronóstico , Estudios Retrospectivos , Resultado del Tratamiento
5.
Abdom Imaging ; 38(4): 858-62, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23291743

RESUMEN

Renal lymphangiomatosis is an extremely rare disease characterized by developmental malformation of the lymphatic system surrounding the kidneys. We present the case of a 22-year-old pregnant female discovered because of worsening. Ultrasound, computed tomography, and magnetic resonance imaging studies were performed. An 18 × 11 × 10 cm voluminous cystic subcapsular lesion compressing the left kidney and subcapsular cysts of the right kidney were found. After the delivery, marsupialization was performed and the pathological analysis confirmed the diagnosis of lymphangiomatosis. A review of the literature is proposed.


Asunto(s)
Diagnóstico por Imagen , Neoplasias Renales/diagnóstico , Neoplasias Renales/patología , Linfangioleiomiomatosis/diagnóstico , Linfangioleiomiomatosis/patología , Diagnóstico Diferencial , Endotelio Vascular/patología , Femenino , Humanos , Neoplasias Renales/diagnóstico por imagen , Linfangioleiomiomatosis/diagnóstico por imagen , Imagen por Resonancia Magnética , Embarazo , Complicaciones del Embarazo/diagnóstico , Ultrasonografía , Adulto Joven
6.
Oncogene ; 30(11): 1318-28, 2011 Mar 17.
Artículo en Inglés | MEDLINE | ID: mdl-21076473

RESUMEN

The liver represents the third most frequent site of metastasis in patients with breast cancer. We performed in vivo selection using 4T1 breast cancer cells to identify genes associated with the liver metastatic phenotype. Coincident with the loss of numerous tight-junctional proteins, we observe claudin-2 overexpression, specifically in liver-aggressive breast cancer cells. We further demonstrate that claudin-2 is both necessary and sufficient for the ability of 4T1 breast cancer cells to colonize and grow in the liver. The liver-aggressive breast cancer cells display a claudin-2-mediated increase in their ability to adhere to extracellular matrix (ECM) components, such as fibronectin and type IV collagen. Claudin-2 facilitates these cell/matrix interactions by increasing the cell surface expression of α(2)ß(1)- and α(5)ß(1)-integrin complexes in breast cancer cells. Indeed, claudin-2-mediated adhesion to fibronectin and type IV collagen can be blocked with neutralizing antibodies that target α(5)ß(1) and α(2)ß(1) complexes, respectively. Immunohistochemical analyses reveal that claudin-2, although weakly expressed in primary human breast cancers, is readily detected in all liver metastasis samples examined to date. Together, these results uncover novel roles for claudin-2 in promoting breast cancer adhesion to the ECM and define its importance during breast cancer metastasis to the liver.


Asunto(s)
Neoplasias de la Mama/genética , Neoplasias de la Mama/patología , Membrana Celular/metabolismo , Neoplasias Hepáticas/secundario , Proteínas de la Membrana/fisiología , Neoplasias de la Mama/metabolismo , Adhesión Celular , Línea Celular Tumoral , Membrana Celular/patología , Claudinas , Matriz Extracelular/metabolismo , Matriz Extracelular/patología , Femenino , Fibronectinas/metabolismo , Humanos , Inmunohistoquímica , Integrina alfa2beta1/metabolismo , Integrina alfa5beta1/metabolismo , Neoplasias Hepáticas/metabolismo
7.
Biomed Pharmacother ; 64(2): 83-7, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20044233

RESUMEN

BACKGROUND: We explored the addition of rituximab to high-dose cytarabine (ara-C), oxaliplatin (L-OHP), and dexamethasone [R-DHAOx], in resistant and relapsed patients with CD20-positive follicular non-Hodgkin's lymphoma. METHODS: Twenty-two patients were included; they were treated previously with one to five chemotherapy regimens, including 13 patients who had also received rituximab. R-DHAOx consisted of rituximab, 375mg/m(2), day 1; dexamethasone, 40mg/d, days one to four; L-OHP, 130mg/m(2), day 1; and ara-C, 2000mg/m(2) every 12 h, day 2. Courses were repeated every 21 days for eight courses. RESULTS: Twenty-one patients (95%) achieved a complete response and one had a partial response. Responses were obtained in patients with and without resistance to prior treatment, either alone or combined with rituximab. The median follow-up time was 58.3 months (range, 8.7-92.6 months). Progression-free survival reached a plateau at 84% at 38.2 months. Only two of the 21 complete responders have relapsed. Tumor molecular markers disappeared in all 10 complete responders whose markers were found before treatment. Peripheral neuropathy related to the cumulative dose of L-OHP, and myelosuppression were the most prominent toxic effects. CONCLUSIONS: R-DHAOx is highly active for salvage treatment of patients with follicular non-Hodgkin's lymphoma, and it produces long-term antitumor efficacy.


Asunto(s)
Anticuerpos Monoclonales/administración & dosificación , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Linfoma Folicular/tratamiento farmacológico , Adulto , Anciano , Anticuerpos Monoclonales/efectos adversos , Anticuerpos Monoclonales de Origen Murino , Biomarcadores de Tumor/metabolismo , Citarabina/administración & dosificación , Dexametasona/administración & dosificación , Supervivencia sin Enfermedad , Resistencia a Antineoplásicos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/tratamiento farmacológico , Compuestos Organoplatinos/administración & dosificación , Enfermedades del Sistema Nervioso Periférico/inducido químicamente , Rituximab , Resultado del Tratamiento
9.
Histopathology ; 50(2): 210-6, 2007 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17222249

RESUMEN

AIMS: To follow and compare immunohistochemical expression of epidermal growth factor receptor (EGFR) in tumour cells during the entire natural history of colonic carcinoma, from primary tumour to paired lymph node and sequentially resected liver metastases; and to test interobserver reproducibility of EGFR analysis. METHODS AND RESULTS: Forty patients had resection of colonic adenocarcinoma (27 with metastatic lymph nodes) and at least one partial hepatectomy (PH) for liver metastases; a second and a third PH were performed, respectively, in 14 and three patients; seven patients had tumour liver biopsy. EGFR immunohistochemistry (n = 130) was analysed independently by two pathologists. EGFR expression (membranous staining detected in > or = 1% of tumour cells) was detected in 38/40 colonic carcinomas, 23/26 lymph nodes and 51/64 liver metastases. Both primary tumours and related metastases were EGFR+ in 28 patients (73%). Discrepancies were found in EGFR status between liver and lymph node (23%) and among the different liver samples (31%). Interobserver agreement was very good (intraclass correlation coefficients of 0.81, 0.91 and 0.85, respectively, for interpretation of staining in colon, lymph node and liver metastases). CONCLUSIONS: Since immunohistochemical detection of EGFR remains a prerequisite for EGFR-targeted therapy eligibility, different tumour samples should be tested to allow every patient a chance to take advantage of this treatment.


Asunto(s)
Carcinoma/metabolismo , Neoplasias del Colon/metabolismo , Receptores ErbB/metabolismo , Inmunohistoquímica , Neoplasias Hepáticas/secundario , Carcinoma/patología , Neoplasias del Colon/patología , Humanos , Neoplasias Hepáticas/metabolismo , Neoplasias Hepáticas/patología , Ganglios Linfáticos/metabolismo , Ganglios Linfáticos/patología , Metástasis Linfática/patología
12.
Ann Oncol ; 14(12): 1751-7, 2003 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-14630680

RESUMEN

BACKGROUND: The usefulness of chemotherapy to treat gastric diffuse large B-cell lymphomas (DLBCL) is well known. Whether or not chemotherapy should be performed as the only treatment or after surgical resection is debated. The aim of this study was to compare two strategies: surgical resection plus chemotherapy versus chemotherapy alone. PATIENTS AND METHODS: Between January 1988 and December 1996, 58 patients included in the trials promoted by the Groupe d'Etude des Lymphomes de l'Adulte (GELA) (LNH-87 and LNH-93) received chemotherapy and 48 included in the protocol of the Groupe d'Etude des Lymphomes Digestifs (GELD) underwent surgical resection followed by chemotherapy. They all presented with localized DLBCL (stage IE and IIE according to the Ann Arbor classification). From the GELA group, seven patients received additional radiotherapy. Gastrectomy was total in 27 of the 48 patients in the GELD group. In both groups chemotherapy included anthracyclin and alkylating agents. Chemotherapy was more intensive in the GELA group than in the GELD group. RESULTS: In the GELA and the GELD groups, distribution according to sex ratio, age (>60 or < or = 60 years), ECOG performance status (> or = 2 or <2) and staging (IE or IIE) was similar. Univariate analysis comparing prognostic factors in both groups showed significant differences: serum lactate dehydrogenase level above normal (28.6% versus 2.4%, P = 0.001), tumor size >10 cm (28.6% versus 12.5%, P = 0.04), patients with International Prognostic Index (IPI) >1 (21.4% versus 11.1%, P = 0.168) and 5-year survival (79% versus 90%, P = 0.03). Multivariate analysis of prognostic factors with a Cox model showed that IPI was the only independent prognostic factor (odds ratio 3, P = 0.03). Consequently, patients with IPI 0-1 were selected for comparison between the GELA group (44 patients) and the GELD group (40 patients). There was no significant difference between the two groups. Median follow-up was 59 months (range 3-128). Estimates of 5-year survival rates and event-free survival rates were 90.5% versus 91.1% (P = 0.303) and 85.9% versus 91.6% (P = 0.187), respectively. In the GELA group, seven of 44 patients died: five from a lymphoma-unrelated cause and two from tumor progression. In the GELD group, four of 40 patients died: two of unrelated causes and two from tumor progression. CONCLUSIONS: This study shows that in localized gastric DLBCL with IPI 0-1, a similar 5-year survival rate (>90%) is to be expected with either surgery plus chemotherapy or chemotherapy alone.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Gastrectomía , Linfoma de Células B/tratamiento farmacológico , Linfoma de Células B/cirugía , Neoplasias Gástricas/tratamiento farmacológico , Neoplasias Gástricas/cirugía , Adulto , Anciano , Terapia Combinada , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Resultado del Tratamiento
13.
Gut ; 52(6): 893-7, 2003 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12740348

RESUMEN

BACKGROUND AND AIM: Autoimmune hepatitis (AIH) has been reported to recur after orthotopic liver transplantation (OLT) in 10-35% of patients in small series with a short follow up. The aim of the present study was to examine the clinical and histological outcome more than 10 years after OLT for AIH. PATIENTS AND METHODS: Seventeen women with a mean age of 30 (12) years at the time of OLT, selected from among 44 patients transplanted for AIH, were followed for more than 10 years. The criteria for definite AIH, as established by the International Autoimmune Hepatitis Group, were met in every case. Liver biopsies were performed 1, 2, 5, and 10 years after OLT, and when indicated by abnormal liver function tests. Specimens were examined for evidence of recurrent AIH, namely interface hepatitis, lobular activity, portal lymphoplasmocytic infiltration, and fibrosis. Other signs of recurrence included hypertransaminasaemia, serum autoantibodies, and the response to steroid reintroduction or significant steroid dose increments. RESULTS: AIH recurred in 7 (41%) of 17 patients. In four patients histological abnormalities were detected by means of protocol biopsies 1-5 years before the onset of biochemical abnormalities. Two patients developed severe recurrences after 10 and 15 years, respectively, and required treatment with steroids and tacrolimus. In the other three patients histological recurrence was detected 0.6-3 years post-OLT, concomitantly with biochemical abnormalities. CONCLUSIONS: AIH recurred in 41% of patients followed for more than 10 years after OLT. As histological signs preceded biochemical abnormalities in four patients (23.5%), regular liver biopsy is warranted after OLT. Detection of isolated histological signs may call for closer follow up and/or a change in immunosuppressive therapy.


Asunto(s)
Hepatitis Autoinmune/cirugía , Trasplante de Hígado , Adolescente , Adulto , Autoanticuerpos/sangre , Autoantígenos/inmunología , Biomarcadores/sangre , Biopsia , Niño , Esquema de Medicación , Femenino , Estudios de Seguimiento , Glucocorticoides/administración & dosificación , Antígenos HLA-DR/análisis , Hepatitis Autoinmune/inmunología , Hepatitis Autoinmune/patología , Prueba de Histocompatibilidad , Humanos , Inmunosupresores/administración & dosificación , Persona de Mediana Edad , Pronóstico , Recurrencia
14.
J Clin Oncol ; 21(7): 1271-7, 2003 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-12663714

RESUMEN

PURPOSE: Because it is unclear whether T-cell/histiocyte-rich large B-cell lymphomas (H/TCRBCL) should be considered as a true clinicopathologic entity, we conducted a matched-control analysis comparing patients with H/TCRBCL and patients with diffuse large-B cell lymphoma (B-DLCL). PATIENTS AND METHODS: More than 4,500 patients were enrolled onto non-Hodgkin's lymphoma trials conducted by the Groupe d'Etude des Lymphomes de l'Adulte. After histologic review, 50 patients were subclassified as H/TCRBCL. They were matched to 150 patients with B-DLCL for each of the factors of the International Prognostic Index (IPI). RESULTS: Clinical characteristics of H/TCRBCL patients showed a male predominance and a median age of 47 years. Performance status was normal in 89% of patients, whereas lactate dehydrogenase level was increased in 60% of patients. The disease was disseminated in 81% of patients, and 48% had two or more involved extranodal sites. The IPI score was >or= 2 in 53% of patients. The complete response rate to chemotherapy was 63%, and 5-year overall survival (OS) and event-free survival (EFS) rates (mean +/- SD) were 58% +/- 18% and 53% +/- 16%, respectively. The matched-control analysis showed a trend toward a better response to chemotherapy for patients with B-DLCL (P =.06), whereas no difference was observed in OS (P =.9) and EFS (P =.8). CONCLUSION: H/TCRBCL is an aggressive disease that often presents with adverse prognostic factors. However, when treatment is adapted to the disease risk, outcome is equivalent to that observed in patients with B-DLCL. Thus H/TCRBCL should be considered a pathologic variant that belongs to the B-DLCL category.


Asunto(s)
Histiocitos/patología , Linfoma de Células B/clasificación , Linfoma de Células B Grandes Difuso/clasificación , Linfocitos T/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Linfoma de Células B/tratamiento farmacológico , Linfoma de Células B/mortalidad , Linfoma de Células B Grandes Difuso/tratamiento farmacológico , Linfoma de Células B Grandes Difuso/mortalidad , Masculino , Análisis por Apareamiento , Persona de Mediana Edad , Pronóstico , Tasa de Supervivencia , Resultado del Tratamiento
15.
J Hepatol ; 35(6): 726-32, 2001 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-11738099

RESUMEN

BACKGROUND/AIMS: Due to its apparent safety and low cost, hydroxyethylstarch (HES) is increasingly used as a volume expander. The aim of this retrospective study was to highlight the risk of hepatic dysfunction after iterative HES infusions. METHODS: Between April 1996 and April 1998, nine patients were referred for worsening of their clinical condition after repeated HES infusions. Six patients had previous chronic liver disease, cirrhosis in four cases. All patients underwent a liver biopsy. RESULTS: All post-HES liver biopsies showed diffuse microvacuolization of Kupffer cells, which was associated with focal hepatocyte vacuolization in seven cases. The vacuoles contained periodic acid Schiff positive material at their margins and were lysosomal by electron microscopy. The clinical symptoms of hepatic disease, although difficult to interpret in cirrhotic patients, worsened after HES infusions. Portal hypertension was noted in three non-cirrhotic patients. Serum alkaline phosphatase and gammaglutamyl transferase activities were increased when compared with previous values. Eight patients died, six of them within 1-4 weeks of hepatic failure or septic shock. In the only living patient, symptoms improved after HES withdrawal. CONCLUSIONS: Repeated administration of HES could favour severe portal hypertension, liver failure and sepsis, particularly in the setting of chronic liver disease. The basis of these adverse effects is the lysosomal storage of HES in Kupffer cells and hepatocytes.


Asunto(s)
Derivados de Hidroxietil Almidón/efectos adversos , Hepatopatías/tratamiento farmacológico , Hígado/efectos de los fármacos , Hígado/fisiopatología , Sustitutos del Plasma/efectos adversos , Anciano , Fosfatasa Alcalina/sangre , Biopsia , Femenino , Hepatocitos/efectos de los fármacos , Hepatocitos/patología , Humanos , Derivados de Hidroxietil Almidón/administración & dosificación , Hipertensión Portal/inducido químicamente , Hígado/patología , Cirrosis Hepática/tratamiento farmacológico , Cirrosis Hepática/patología , Cirrosis Hepática/fisiopatología , Hepatopatías/mortalidad , Hepatopatías/patología , Hepatopatías/fisiopatología , Masculino , Persona de Mediana Edad , Retratamiento/efectos adversos , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Vacuolas/ultraestructura , gamma-Glutamiltransferasa/sangre
16.
Clin Nephrol ; 55(5): 408-11, 2001 May.
Artículo en Inglés | MEDLINE | ID: mdl-11393388

RESUMEN

Hydroxyethyl starch (HES) is a macromolecular preparation that has been used as a volume expander since 1991. Renal toxicity of high-dose HES is now well recognized but potential renal toxicity of low-dose HES is poorly documented. Acute renal toxicity of cyclosporin A (CyA) may be responsible for osmotic nephrosis-like lesions. We report here the case of a 30-year-old male who developed cirrhosis due to hepatitis B and delta viruses and polymyositis. Polymyositis was treated with CyA, prednisone and plasma exchanges using low-dose HES as the replacement fluid. Renal insufficiency occurred with biopsy-proven osmotic nephrosis-like lesions, considered to be secondary to HES infusions and/or CyA.


Asunto(s)
Derivados de Hidroxietil Almidón/efectos adversos , Cirrosis Hepática/complicaciones , Intercambio Plasmático/efectos adversos , Sustitutos del Plasma/efectos adversos , Polimiositis/terapia , Insuficiencia Renal/etiología , Adulto , Ciclosporina/efectos adversos , Hepatitis B/complicaciones , Hepatitis D/complicaciones , Humanos , Riñón/patología , Cirrosis Hepática/virología , Masculino , Polimiositis/complicaciones , Insuficiencia Renal/inducido químicamente , Insuficiencia Renal/patología
17.
Ann Med Interne (Paris) ; 152(2): 103-7, 2001 Mar.
Artículo en Francés | MEDLINE | ID: mdl-11357046

RESUMEN

During systemic sarcoidosis, the liver is involved in about 66% of cases, usually clinically silent. The laboratory abnormalities include hypergammaglobulinemia and moderate increases in serum alkaline phosphatase activity; Imaging findings are extremely rare. As in the other organs, liver sarcoidosis is characterized histopathologically by epithelioid, typically noncaseating granulomas generally scattered widely, but many tend to be portal or periportal. In rare instances, liver sarcoidosis is complicated by portal hypertension or chronic cholestasis. Corticosteroids are the main treatment, indicated in case of symptomatic liver involvement and/or in case of extensive liver fibrosis. When portal hypertension is developed, specific treatment of esophageal varices is required.


Asunto(s)
Hepatopatías/diagnóstico , Hepatopatías/tratamiento farmacológico , Sarcoidosis/diagnóstico , Sarcoidosis/tratamiento farmacológico , Adulto , Distribución por Edad , Fosfatasa Alcalina/sangre , Antiinflamatorios/uso terapéutico , Biopsia , Colestasis/etiología , Progresión de la Enfermedad , Várices Esofágicas y Gástricas/etiología , Femenino , Humanos , Hipergammaglobulinemia/etiología , Hipertensión Portal/etiología , Cirrosis Hepática/etiología , Hepatopatías/complicaciones , Hepatopatías/epidemiología , Hepatopatías/metabolismo , Masculino , Sarcoidosis/complicaciones , Sarcoidosis/epidemiología , Sarcoidosis/metabolismo , Distribución por Sexo , Esteroides
18.
Ann Pathol ; 21(2): 137-44, 2001 Apr.
Artículo en Francés | MEDLINE | ID: mdl-11373583

RESUMEN

Liver large cell dysplasia (LCD) is identifiable only at the microscopic level as foci of large hepatocytes with pleomorphic hyperchromatic nuclei and prominent nucleoli. LCD is mainly observed in cirrhotic livers, on surgical specimens, within macroregenerative nodules or low grade dysplastic nodules but also on liver needle biopsies. For needle biopsies, the prevalence of LCD ranges between 15% and 20%. in case of associated hepatocellular carcinoma, the prevalence is around 40%. LCD is more frequent in hepatitis B virus-induced liver cirrhosis than in cirrhosis related to other causes. Two prospective studies showed that LCD is a predictive factor for the occurrence of hepatocellular carcinoma in cirrhotic patients. Nevertheless LCD is probably not a precancerous lesion; dysplastic hepatocytes are biologically senescent polyploid cells unable to carry out normal cell division. Diagnosis of LCD on liver needle biopsy is indicative for the presence of large and numerous foci of LCD within the whole parenchya and allows consequently to select cirrhosis associated with advanced liver cell secescence, i.e. cirrhosis in which multistep genetic alterations of liver cell carcinogenesis could have happened with the greatest probability. Therefore pathologists have to identify and indicate the presence of LCD in the reports of liver needle biopsies


Asunto(s)
Biopsia con Aguja , Hepatocitos/patología , Carcinoma Hepatocelular/etiología , Carcinoma Hepatocelular/patología , División Celular , Nucléolo Celular/patología , Núcleo Celular/patología , Senescencia Celular , Hepatitis B/patología , Humanos , Cirrosis Hepática/complicaciones , Cirrosis Hepática/patología , Cirrosis Hepática/virología , Neoplasias Hepáticas/etiología , Neoplasias Hepáticas/patología
19.
J Hepatol ; 34(2): 254-60, 2001 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-11281554

RESUMEN

BACKGROUND/AIMS: Although human and experimental studies have shown that apoptosis plays a role in hepatocyte death in alcoholic liver disease, its clinical and biological significance has not been investigated in alcoholic hepatitis (AH). The aim of this study was to quantify hepatocyte apoptosis in AH and to attempt to relate it to the clinical and biological severity of the disease. METHODS: The hepatocyte apoptotic index was determined using a double in situ transferase-mediated dUTP nick end (TUNEL) and CD15 (neutrophils) labelling on 35 liver biopsies from patients with AH lesions of different severities. The specificity of TUNEL labelling for apoptosis was monitored both by morphology and fractin (a caspase actin cleavage site) immunostaining. RESULTS: The hepatocyte apoptotic index ranged from 0.3 to 28% and was related to the severity of alcoholic hepatitis as measured by the Maddrey score (P < 0.05; Mann-Whitney test) while ballooning (which reflects hepatocytes potentially undergoing necrosis) and neutrophil indexes were not. CONCLUSIONS: This suggests that hepatocyte apoptosis could be a therapeutic target to treat or to prevent alcoholic hepatitis in cirrhotic patients. Co-localization of apoptotic hepatocytes with neutrophils and the strong quantitative correlation would suggest an apoptosis dependent transmigration of neutrophils.


Asunto(s)
Apoptosis , Hepatitis Alcohólica/patología , Hepatocitos/patología , Actinas/metabolismo , Adulto , Anciano , Estudios de Casos y Controles , Fragmentación del ADN , Femenino , Hepatitis Alcohólica/inmunología , Hepatitis Alcohólica/metabolismo , Hepatocitos/inmunología , Hepatocitos/metabolismo , Humanos , Etiquetado Corte-Fin in Situ , Antígeno Lewis X/metabolismo , Masculino , Persona de Mediana Edad , Neutrófilos/inmunología , Neutrófilos/patología , Fragmentos de Péptidos/metabolismo
20.
Ann Oncol ; 12(10): 1439-43, 2001 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-11762817

RESUMEN

BACKGROUND: Dexamethasone. cytarabine (ara-C), and cisplatin (DHAP) can be used effectively to treat patients with non-Hodgkin's lymphoma (NHL). We hypothesized that substitution of cisplatin by oxaliplatin (L-OHP) could result in less toxicity and greater efficacy. L-OHP is active in patients with lymphoma. It produces mild myelosuppression and is devoid of renal toxicity. We report on a phase II study of dexamethasone, high-dose ara-C, and L-OHP (DHAOx) used to treat patients with NHL who were previously treated with chemotherapy. PATIENTS AND METHODS: Fifteen patients were given DHAOx. They had failed to achieve a CR with initial chemotherapy or had recurrent disease. DHAOx consisted of dexamethasone, 40 mg/day (days 1 to 4): L-OHP, 130 mg/m2 (day 1); and ara-C, 2,000 mg/m2 every 12 h (day 2). Treatment was repeated every 21 days. RESULTS: Patients received a median of four courses of DHAOx. Myelosuppression and transient sensory peripheral neuropathy were the most prominent toxic effects. Serum creatinine levels did not increase in patients with normal renal function, nor in patients who had renal impairment before DHAOx. The median follow-up time from the start of DHAOx treatment was 17 months. Eight patients (53%) achieved a CR, and three patients (20%) had a PR. Responses were achieved by patients with lymphomas of various histologies that included mainly the follicular subtype, and by patients with and without resistance to prior chemotherapy. None of the eight responders have relapsed from CR at 4+. 6+, 14+, 15+, 19+, 20+, 24+, and 24+ months. They had various types of therapy after DHAOx. Disappearance of molecular markers was observed in all four patients who achieved a CR and whose tumor cells carried molecular abnormalities. CONCLUSION: DHAOx possesses characteristics of toxicity which compare favorably to those reported with DHAP, and it is useful as a salvage treatment for patients with NHL. Larger studies are required to establish the therapeutic potential of the regimen.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Linfoma no Hodgkin/tratamiento farmacológico , Adulto , Anciano , Protocolos de Quimioterapia Combinada Antineoplásica/administración & dosificación , Biomarcadores de Tumor/análisis , Citarabina/administración & dosificación , Dexametasona/administración & dosificación , Supervivencia sin Enfermedad , Resistencia a Antineoplásicos , Femenino , Factor Estimulante de Colonias de Granulocitos/administración & dosificación , Humanos , Infusiones Intravenosas , Linfoma no Hodgkin/patología , Masculino , Persona de Mediana Edad , Compuestos Organoplatinos/administración & dosificación , Recurrencia , Resultado del Tratamiento
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