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1.
Dis Esophagus ; 30(5): 1-7, 2017 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-28375444

RESUMEN

Esophageal stricture formation after extensive endoscopic resection remains a major limitation of endoscopic therapy for early esophageal neoplasia. This study assessed a recently developed self-assembling peptide (SAP) matrix as a wound dressing after endoscopic resection for the prevention of esophageal stricture. Ten pigs were randomly assigned to the SAP or the control group after undergoing a 5-cm-long circumferential endoscopic submucosal dissection of the lower esophagus. Esophageal diameter on endoscopy and esophagogram, weight variation, and histological measurements of fibrosis, granulation tissue, and neoepithelium were assessed in each animal. The rate of esophageal stricture at day 14 was 40% in the SAP-treated group versus 100% in the control group (P = 0.2). Median interquartile range (IQR) esophageal diameter at day 14 was 8 mm (2.5-9) in the SAP-treated group versus 4 mm (3-4) in the control group (P = 0.13). The median (IQR) stricture indexes on esophagograms at day 14 were 0.32 (0.14-0.48) and 0.26 (0.14-0.33) in the SAP-treated and control groups, respectively (P = 0.42). Median (IQR) weight variation during the study was +0.2 (-7.4; +1.8) and -3.8 (-5.4; +0.6) in the SAP-treated and control groups, respectively (P = 0.9). Fibrosis, granulation tissue, and neoepithelium were not significantly different between the groups. The application of SAP matrix on esophageal wounds after a circumferential endoscopic submucosal dissection delayed the onset of esophageal stricture in a porcine model.


Asunto(s)
Estenosis Esofágica/prevención & control , Esofagectomía/efectos adversos , Matriz Extracelular/química , Complicaciones Posoperatorias/prevención & control , Técnicas de Cierre de Heridas , Animales , Modelos Animales de Enfermedad , Resección Endoscópica de la Mucosa/efectos adversos , Resección Endoscópica de la Mucosa/métodos , Estenosis Esofágica/etiología , Esofagectomía/métodos , Esófago/cirugía , Péptidos , Complicaciones Posoperatorias/etiología , Distribución Aleatoria , Porcinos , Resultado del Tratamiento
2.
Ann Oncol ; 27(12): 2172-2184, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27803003

RESUMEN

BACKGROUND: Hepatitis B virus (HBV) reactivation is a well-known risk during chemotherapy for hematological malignancies with reported rates ranging between 14% and 72%. However, there is a paucity of data regarding HBV infection management and reactivation risk in patients receiving systemic treatments for solid tumors. DESIGN: We conducted a PubMed search for publications from January 1990 until May 2016 related to HBV reactivation. The search terms were 'hepatitis B reactivation', cross-referenced with 'chemotherapy', then 'hepatitis B' cross-referenced with International Non-proprietary Name of each of the most used chemotherapy drugs in solid tumors. RESULTS: From these data, a grading of HBV reactivation risk and recommendations for management are given for most frequently used anticancer drugs in solid tumors. CONCLUSION: Most drugs used for the treatment of solid tumors can induce hepatitis B reactivation in HBs antigen-positive patients. HBV screening can be recommended before systemic treatment initiation. Pre-emptive antiviral treatment can reduce the risk of HBV reactivation and prevent chemotherapy disruption.


Asunto(s)
Antineoplásicos/efectos adversos , Virus de la Hepatitis B/efectos de los fármacos , Hepatitis B/patología , Neoplasias/tratamiento farmacológico , Antineoplásicos/uso terapéutico , Doxorrubicina/efectos adversos , Hepatitis B/inducido químicamente , Hepatitis B/virología , Virus de la Hepatitis B/genética , Virus de la Hepatitis B/patogenicidad , Humanos , Neoplasias/complicaciones , Neoplasias/virología , Rituximab/efectos adversos , Activación Viral/efectos de los fármacos
3.
Dis Esophagus ; 29(6): 520-7, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26043904

RESUMEN

The development of techniques for endoscopic resection has provided new strategies for radical conservative treatment of superficial esophageal neoplasms, even those that are circumferential, such as Barrett's neoplasia. However, it is necessary to prevent the formation of scar tissue that can be responsible for esophageal strictures following circumferential resection. Preliminary data have suggested the possible efficacy of a hemostatic powder in the promotion of wound healing. The study aims to assess the effectiveness of Hemospray (Cook Medical) in a swine model of post-endoscopic esophageal stricture. Our prospective controlled study included 21 pigs. A 6-cm circumferential submucosal dissection of the esophagus (CESD) was performed in each pig. Group 1 (n = 11) only underwent CESD and Group 2 (n = 10) had repeated Hemospray applications after CESD. Clinical, endoscopic, and radiological monitoring were performed, blood levels of four inflammatory or pro-fibrotic cytokines were assessed, and histological analysis was performed. Median esophageal diameter was greater in the group treated with Hemospray (2 mm [1-3] vs. 3 mm [2-4], P = 0.01), and the rate of symptomatic esophageal stricture was 100% and 60% in Groups 1 and 2, respectively (P = 0.09). The thicknesses of esophageal fibrosis and inflammatory cell infiltrate were significantly lower in Group 2 than in Group 1 (P = 0.002 and 0.0003, respectively). The length of the neoepithelium was greater in Group 2 than in Group 1 (P = 0.0004). Transforming growth factor-ß levels were significantly lower in Group 2 than in Group 1 (P = 0.01). The application of Hemospray after esophageal CESD reduces scar tissue formation and promotes reepithelialization, and therefore is a promising therapeutic approach in the prevention of post-endoscopic esophageal stricture.


Asunto(s)
Resección Endoscópica de la Mucosa , Mucosa Esofágica/efectos de los fármacos , Estenosis Esofágica/prevención & control , Esofagoscopía , Hemostáticos/farmacología , Minerales/farmacología , Complicaciones Posoperatorias/prevención & control , Repitelización/efectos de los fármacos , Animales , Esófago de Barrett/cirugía , Cicatriz/prevención & control , Mucosa Esofágica/cirugía , Esófago/efectos de los fármacos , Esófago/cirugía , Estudios Prospectivos , Porcinos
4.
Am J Gastroenterol ; 106(4): 771-7, 2011 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21386832

RESUMEN

OBJECTIVES: Rescue therapy with either cyclosporine (CYS) or infliximab (IFX) is an effective option in patients with intravenous steroid-refractory attacks of ulcerative colitis (UC). In patients who fail, colectomy is usually recommended, but a second-line rescue therapy with IFX or CYS is an alternative. The aims of this study were to investigate the efficacy and tolerance of IFX and CYS as a second-line rescue therapy in steroid-refractory UC or indeterminate colitis (IC) unsuccessfully treated with CYS or IFX. METHODS: This was a retrospective survey of patients seen during the period 2000-2008 in the GETAID centers. Inclusion criteria included a delay of <1 month between CYS withdrawal (when used first) and IFX, or a delay of <2 months between IFX (when used first) and CYS, and a follow-up of at least 3 months after inclusion. Time-to-colectomy, clinical response, and occurrence of serious adverse events were analyzed. RESULTS: A total of 86 patients (median age 34 years; 49 males; 71 UC and 15 IC) were successively treated with CYS and IFX. The median (± s.e.) follow-up time was 22.6 (7.0) months. During the study period, 49 patients failed to respond to the second-line rescue therapy and underwent a colectomy. The probability of colectomy-free survival (± s.e.) was 61.3 ± 5.3% at 3 months and 41.3 ± 5.6 % at 12 months. A case of fatal pulmonary embolism occurred at 1 day after surgery in a 45-year-old man. Also, nine infectious complications were observed during the second-line rescue therapy. CONCLUSIONS: In patients with intravenous steroid-refractory UC and who fail to respond to CYS or IFX, a second-line rescue therapy may be effective in carefully selected patients, avoiding colectomy within 2 months in two-thirds of them. The risk/benefit ratio should still be considered individually.


Asunto(s)
Antiinflamatorios/administración & dosificación , Anticuerpos Monoclonales/administración & dosificación , Colitis Ulcerosa/tratamiento farmacológico , Ciclosporina/administración & dosificación , Resistencia a Medicamentos , Terapia Recuperativa/métodos , Esteroides/administración & dosificación , Administración Oral , Adolescente , Adulto , Antiinflamatorios/efectos adversos , Anticuerpos Monoclonales/efectos adversos , Niño , Colectomía , Colitis Ulcerosa/cirugía , Ciclosporina/efectos adversos , Femenino , Estudios de Seguimiento , Humanos , Infecciones/inducido químicamente , Infliximab , Inyecciones Intravenosas , Masculino , Persona de Mediana Edad , Embolia Pulmonar/inducido químicamente , Embolia Pulmonar/mortalidad , Estudios Retrospectivos , Resultado del Tratamiento , Adulto Joven
5.
Endoscopy ; 43(8): 723-6, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21437855

RESUMEN

Cowden syndrome is characterized by diffuse hamartomas involving the whole digestive tract. The gastrointestinal expression of the disease is inconstant, but hamartomatous polyposes are frequent. In a multicenter study we studied the endoscopic appearance of Cowden syndrome--as defined by fulfillment of international consortium criteria--in 10 patients. In 6 of the 10 patients the connection with Cowden syndrome was made retrospectively on the basis of the gastrointestinal endoscopic findings. All patients had upper and lower gastrointestinal tract involvement. Mean follow-up duration was 9.5 years (range: 2-26 years). Mean age was 37 years (range: 18-56 years). Polyps of the upper gastrointestinal tract were hamartomas, ganglioneuromas, lipomas, and adenomas. Diffuse glycogenic acanthosis was reported in nine patients. Besides the classical hamartomatous polyposis, diffuse macroscopic esophageal acanthosis and microscopic ganglioneuromatosis are other key findings associated with a diagnosis of Cowden syndrome. Physicians should be aware of these characteristics in order to diagnose Cowden syndrome early.


Asunto(s)
Adenoma/patología , Pólipos del Colon/patología , Enfermedades del Esófago/patología , Ganglioneuroma/patología , Síndrome de Hamartoma Múltiple/patología , Neoplasias Intestinales/patología , Neoplasias Gástricas/patología , Adolescente , Adulto , Colonoscopía , Endoscopía del Sistema Digestivo , Femenino , Glucógeno , Síndrome de Hamartoma Múltiple/diagnóstico , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
6.
Endoscopy ; 43(8): 664-70, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21623560

RESUMEN

BACKGROUND AND STUDY AIMS: Endoscopic submucosal dissection (ESD) is a technique for "en bloc" resection of superficial tumors of the gastrointestinal tract. In France, experience with this technique is still limited. We wanted to assess the development of ESD in France, with special attention to short term outcomes. PATIENTS AND METHODS: Members of the Société Française d'Endoscopie Digestive (SFED) who declared performing ESD reported their cases prospectively on a voluntary basis. Demographic, clinical, and technical data, and the results of immediate complications were collected. Case reports were completed prospectively by each investigator before pooled analysis. RESULTS: A total of 188 consecutive case reports were collected from 16 centers. The median case mix per center was 6 patients (range 1-43). The lesion sites treated by ESD were the stomach (n = 75), esophagus (n = 27), duodenum (n = 1), cecum (n = 2), right colon (n = 3), transverse colon (n = 5), sigmoid (n = 3), and rectum (n = 72). The median size of the lesions was 26 mm (range 2-150 mm). En bloc resection was achieved in 77.1% of cases, with complete R0 resection in 72.9%. Histopathology results showed high grade dysplasia or superficial cancer in 71.2%. The median duration of ESD was 105 minutes (range 20-450 minutes). The short term morbidity was 29.2% including 34 cases of perforation (18.1%), and 21 hemorrhages (11.2%) during the 24 hours following ESD, 89% of which were managed conservatively or endoscopically. CONCLUSION: In this early experience, the feasibility of ESD appeared to be good but R0 resection and complication rates did not match those reported by Japanese authors and must be improved by an extended practice.


Asunto(s)
Disección/métodos , Endoscopía Gastrointestinal/métodos , Mucosa Gástrica/cirugía , Neoplasias Gastrointestinales/cirugía , Mucosa Intestinal/cirugía , Perforación Intestinal/etiología , Hemorragia Posoperatoria/etiología , Adulto , Anciano , Anciano de 80 o más Años , Pérdida de Sangre Quirúrgica , Disección/efectos adversos , Endoscopía Gastrointestinal/efectos adversos , Femenino , Francia , Neoplasias Gastrointestinales/patología , Humanos , Tiempo de Internación , Masculino , Persona de Mediana Edad , Factores de Tiempo
7.
Eur Respir J ; 35(1): 112-7, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-19541715

RESUMEN

The aims of the present study were to identify prognostic factors for systemic sclerosis (SSc)-related interstitial lung disease and to clarify the possible causative role of manometric oesophageal involvement. Consecutive SSc patients underwent pulmonary function tests and oesophageal manometry. They were included in the study if pulmonary function tests were repeated >12 months after baseline. The primary end-point was a decrease of >or=10% of the predicted value in forced vital capacity (FVC). The secondary end-points were a decrease of >or=15% pred in lung carbon monoxide diffusing capacity (D(L,CO)) and a decrease of >or=20% pred in FVC. Of the 105 patients (45 diffuse SSc; median disease duration 2.0 yrs), 23 (23%) had a FVC of <80% pred, 60 (59%) had a D(L,CO) of <80% pred and 57 (54%) showed severe oesophageal hypomotility at baseline. Over 72+/-46 months, 29 (28%) patients displayed a decrease of >or=10% pred in FVC, 39 (40%) of 98 patients displayed D(L,CO) decline and 19 (18%) patients displayed a decrease of >or=20% pred in FVC. On multivariate analysis, diffuse SSc was a significant predictor for a decrease of >or=10% pred in FVC (p = 0.01). No other predictor of a decrease in pulmonary function was identified. Only diffuse SSc was predictive of a decrease in pulmonary function in this early-SSc cohort. This does not support preliminary data suggestive of a causative role of oesophageal involvement.


Asunto(s)
Pulmón/fisiopatología , Esclerodermia Sistémica/fisiopatología , Enfermedades del Esófago/etiología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos , Esclerodermia Sistémica/complicaciones
8.
Endoscopy ; 42(10): 806-13, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20821362

RESUMEN

BACKGROUND AND STUDY AIM: Studies on endoscopic mucosal resection (EMR) are mostly based on data from centers with high expertise. We report the average EMR results in a national survey of consecutive patients in France. METHODS: A 1-year survey was carried out to record immediate outcome data of all EMRs performed, regardless of lesion size or gastrointestinal location. RESULTS: Overall, 1335 EMRs in 1210 patients were reported by 241 of the 736 gastroenterologists who performed such procedures (33 %). Resections were done for upper gastrointestinal lesions in 125 cases (41 esophageal, 43 gastric, and 41 duodenal lesions), in 45 % of cases using specific EMR techniques such as ligation, cap, or traction. The technique for resecting the 1210 lower gastrointestinal lesions mostly consisted of saline-assisted polypectomy or EMR, with specific techniques used in only 2.2 %. En bloc resection was less common with esophageal (46 %) or duodenal (54 %) neoplasms than in the lower gastrointestinal tract (73 %); size also had some influence (53 % > 1 cm vs. 92 % ≤ 1 cm). The overall complication rate was 5.2 %; the rate was lower for lesions 1 cm or smaller (0.6 % vs. 4.6 %). Fifty-four early and 17 delayed complications were recorded, in 12 % of upper gastrointestinal and 4.6 % of colonic lesions. Surgery became necessary in 1.6 % for upper and 2.9 % for lower gastrointestinal neoplasms. No association was seen between physician EMR caseload and either en bloc resection rate or complication rate. CONCLUSIONS: EMR in general, especially saline-assisted polypectomy in the colon, appears to be reasonably safe even when performed by nonexperts. EMR for larger or for upper gastrointestinal lesions should probably be limited to high-volume centers.


Asunto(s)
Carcinoma/cirugía , Endoscopía Gastrointestinal/efectos adversos , Endoscopía Gastrointestinal/métodos , Mucosa Gástrica/cirugía , Neoplasias Gastrointestinales/cirugía , Mucosa Intestinal/cirugía , Anciano , Carcinoma/patología , Disección/métodos , Femenino , Francia , Mucosa Gástrica/patología , Gastroenterología , Neoplasias Gastrointestinales/patología , Humanos , Mucosa Intestinal/patología , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Resultado del Tratamiento
9.
Endoscopy ; 42(2): 93-7, 2010 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-20140825

RESUMEN

BACKGROUND AND STUDY AIM: A video capsule similar to that used in small-bowel capsule endoscopy is now available for esophageal exploration. The aim of our study was to compare the accuracy of upper endoscopy (esophageal gastroduodenoscopy [EGE]) with esophageal capsule endoscopy (ECE) in patients at risk of esophageal squamous cell cancer (SCC). PATIENTS AND METHODS: 68 patients at risk of SCC secondary to a history of head and neck neoplasia were included in this comparison of techniques for detecting SCC and dysplasia. ECE was done using the first generation Pillcam ESO and EGE was performed in accordance with the usual practice of each center, followed by examination with 2 % Lugol staining and biopsy of unstained areas (39 neoplasia comprising 5 low grade dysplasia, 8 high grade dysplasia and 26 SCC). RESULTS: Compared with EGE with and without Lugol staining, the sensitivities of ECE for neoplasia diagnosis were 46 % and 54 %, respectively. On a per-patient basis, the sensitivity, specificity, and positive and negative predictive value of ECE were 63 %, 86 %, 77 % and 76 %, respectively, compared with EGE without staining, and 61 %, 86 %, 77 % and 73 % compared with EGE with iodine staining. Neither the ECE transit time nor the distance between the esopharyngeal line and the neoplastic lesion differed between the 21 false-negative and 18 true-positive cases diagnosed by ECE; the only difference was a smaller median diameter among false negatives ( P < 0.001). CONCLUSION: In a cohort at high risk for esophageal SCC, ECE is not sensitive enough to diagnose neoplastic lesions.


Asunto(s)
Endoscopía Capsular/métodos , Carcinoma de Células Escamosas/diagnóstico , Endoscopía Gastrointestinal/métodos , Neoplasias Esofágicas/diagnóstico , Adulto , Anciano , Diagnóstico Diferencial , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Reproducibilidad de los Resultados , Sensibilidad y Especificidad
10.
Gastroenterol Clin Biol ; 34(1): 88-94, 2010 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-20044228

RESUMEN

BACKGROUND AND AIM: The aim of this retrospective study was to assess endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA), a minimally invasive technique, to determine its diagnostic accuracy and morbidity in the etiological diagnoses of mediastinal lymph nodes. METHODS: A total of 84 patients underwent EUS-FNA biopsy of the mediastinal lymph nodes, and were classified as either malignant disease, inflammatory disease or incidental diagnosis, according to the suspected clinical condition. To evaluate the diagnostic accuracy of EUS-FNA in each group, a comparison of the cytological results obtained with 19- and 22-gauge needles was performed. RESULTS: All 84 procedures were carried out between January 2004 and June 2008. Six patients were excluded because of non-contributory results. On analyzing the results of EUS-FNA in the malignant group (n=41), the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were 93, 100, 100 and 85%, respectively. In the inflammatory (n=20) and incidental diagnosis (n=17) groups, the sensitivity, specificity, PPV and NPV were 85, 100, 100 and 75%, and 80, 100, 100 and 77%, respectively. There was no significant difference between the FNA results with the 19-gauge (20/78 patients) versus 22-gauge (58/78 patients) needles (P=0.55). Also, no complications were reported either during the procedure or after the 6-month follow-up. CONCLUSION: EUS-FNA is a safe and accurate diagnostic procedure for the study of mediastinal lymph nodes not only for malignancy, but also for inflammatory diseases and incidental diagnoses. In addition, there is no difference in diagnostic accuracy whether FNA is carried out with a 19-gauge or 22-gauge needle.


Asunto(s)
Ganglios Linfáticos/patología , Neoplasias del Mediastino/diagnóstico , Mediastinitis/diagnóstico , Ultrasonografía Intervencional , Adulto , Anciano , Anciano de 80 o más Años , Biopsia con Aguja Fina , Endoscopía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Sensibilidad y Especificidad
11.
Gastroenterol Clin Biol ; 34(10): 541-8, 2010 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-20739131

RESUMEN

OBJECTIVES: In 2004, the French health authorities published guidelines on the indications for colonoscopy. However, no study has evaluated the awareness of healthcare practitioners of these guidelines. The aim of this study was to determine the level of awareness of the ANAES guidelines among French gastroenterologists. PATIENTS AND METHODS: A questionnaire comprising 20 multiple choice questions (MCQ) was presented to a group of 79 gastroenterologists between February and June in 2008. The questions covered screening tests for colon cancer (one question), endoscopic mucosal resection (two questions) and the ANAES guidelines (17 questions). According to the number of colonoscopies performed per year (less than 100, 100-500, more than 500), the answers to these questions were analyzed separately. RESULTS: Among the practitioners carrying out less than 100, 100-500 and more than 500 colonoscopies per year, the guidelines for colon cancer screening were known by 33, 50 and 56%, respectively, the quality criteria for endoscopic mucosal resection by 0, 0 and 3.7%, respectively, and the ANAES guideline indications for colonoscopy by 34.3, 51.2 and 48.9%, respectively (P<0.001). The ANAES guidelines were significantly better known by practitioners who were performing more than 100 colonoscopies per year, while the indications for control colonoscopy were less often correctly anticipated. No differences were found concerning postponed indications. CONCLUSION: The ANAES guidelines consists of the following elements: (1) awareness of the ANAES guidelines is poor, with control colonoscopy being correctly anticipated in just over a third of the gastroenterologists; (2) performing more than 100 colonoscopies per year improves knowledge of the ANAES guidelines; and (3) the ANAES guidelines need to be simplified and should be covered by continuing medical education.


Asunto(s)
Colonoscopía/estadística & datos numéricos , Colonoscopía/normas , Adhesión a Directriz/normas , Acreditación , Neoplasias Colorrectales/diagnóstico , Francia , Adhesión a Directriz/estadística & datos numéricos , Conocimientos, Actitudes y Práctica en Salud , Encuestas Epidemiológicas , Humanos , Guías de Práctica Clínica como Asunto , Garantía de la Calidad de Atención de Salud/normas , Sociedades Médicas , Encuestas y Cuestionarios
12.
Pharmacol Ther ; 210: 107517, 2020 06.
Artículo en Inglés | MEDLINE | ID: mdl-32109491

RESUMEN

Biliary tract cancers (BTCs) represent a heterogeneous group that includes intrahepatic cholangiocarcinomas (CCAs), perihilar-CCAs or Klatskin tumors, extrahepatic-CCAs, and gallbladder adenocarcinoma. These entities have distinct demographics, risk factors, clinical presentation, and molecular characteristics. In advanced BTCs, the recommendations are mainly supporting a doublet chemotherapy regimen using cisplatin/gemcitabine (CisGem) with a 5-year overall survival rate close to 5% and median overall survival (mOS) of less than a year. The lack of overall efficacy stresses the need for personalized therapies. Recently, whole-genome and transcriptome sequencing highlighted the diversity of BTCs' subtypes. Distinct genetic alterations were retrieved according to the localization, with a high rate of potentially actionable alterations. Targeted therapies and immunotherapy have since then been tested for BTCs, trying to propose a more personalized treatment. This review describes the different therapeutic options, validated and in development, for patients with advanced BTCs.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Neoplasias del Sistema Biliar/terapia , Inmunoterapia , Terapia Molecular Dirigida , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Neoplasias del Sistema Biliar/genética , Neoplasias del Sistema Biliar/inmunología , Neoplasias del Sistema Biliar/mortalidad , Biomarcadores de Tumor/genética , Toma de Decisiones Clínicas , Humanos , Inmunoterapia/efectos adversos , Inmunoterapia/mortalidad , Terapia Molecular Dirigida/efectos adversos , Terapia Molecular Dirigida/mortalidad , Medicina de Precisión , Resultado del Tratamiento , Microambiente Tumoral
13.
Gastroenterol Clin Biol ; 33(2): 103-8, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-18783903

RESUMEN

OBJECTIVES: To produce valid information, an evaluation of professional practices has to assess the quality of all practices before, during and after the procedure under study. Several auditing techniques have been proposed for colonoscopy. The purpose of this work is to describe a straightforward original validated method for the prospective evaluation of professional practices in the field of colonoscopy applicable in all endoscopy units without increasing the staff work load. METHODS: Pertinent quality-control criteria (14 items) were identified by the endoscopists at the Cochin Hospital and were compatible with: findings in the available literature; guidelines proposed by the Superior Health Authority; and application in any endoscopy unit. Prospective routine data were collected and the methodology validated by evaluating 50 colonoscopies every quarter for one year. RESULTS: The relevance of the criteria was assessed using data collected during four separate periods. The standard checklist was complete for 57% of the colonoscopy procedures. The colonoscopy procedure was appropriate according to national guidelines in 94% of cases. These observations were particularly noteworthy: the quality of the colonic preparation was insufficient for 9% of the procedures; complete colonoscopy was achieved for 93% of patients; and 0.38 adenomas and 0.045 carcinomas were identified per colonoscopy. CONCLUSION: This simple and reproducible method can be used for valid quality-control audits in all endoscopy units. In France, unit-wide application of this method enables endoscopists to validate 100 of the 250 points required for continuous medical training. This is a quality-control tool that can be applied annually, using a random month to evaluate any changes in routine practices.


Asunto(s)
Colonoscopía , Garantía de la Calidad de Atención de Salud/métodos , Neoplasias del Colon/diagnóstico , Colonoscopía/métodos , Colonoscopía/normas , Francia , Humanos , Auditoría Médica/métodos , Guías de Práctica Clínica como Asunto , Estudios Prospectivos , Garantía de la Calidad de Atención de Salud/normas
15.
Endoscopy ; 40(9): 764-8, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18535938

RESUMEN

Esophageal lichen planus is a rare condition. Its risk of malignant transformation is unknown. We report a series of eight patients with esophageal lichen planus referred to our unit between 1990 and 2005. Clinical, endoscopic, radiological and histological data of these patients were retrospectively reviewed. Seven patients were women. All patients had oral lichen planus. Endoscopic lesions were located in the upper third of the esophagus in seven patients and in the mid third in two patients. Five patients had esophageal stricture. Seven patients had peeling, friable esophageal mucosa. Histological examination of esophageal biopsies found characteristic features of lichen planus in two patients and nonspecific changes in five patients. All patients received corticosteroids. Patients with stricture underwent esophageal dilation. Esophageal perforation after dilation occurred in one patient. Corticosteroids improved dysphagia in all patients; steroid dependence occurred in two patients with stricture. One patient had an esophageal verrucous carcinoma, which was treated with radiotherapy and chemotherapy. Upper endoscopy should be performed in patients with mucosal lichen planus presenting with dysphagia to assess esophageal involvement. Esophageal strictures are frequent and require dilation. Corticosteroids are the first-line treatment, but steroid dependence may occur. Cancer can arise on esophageal lichen planus and justifies endoscopic follow-up.


Asunto(s)
Enfermedades del Esófago/diagnóstico , Liquen Plano/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Carcinoma Verrugoso/diagnóstico , Diagnóstico Diferencial , Enfermedades del Esófago/patología , Neoplasias Esofágicas/diagnóstico , Estenosis Esofágica/diagnóstico , Estenosis Esofágica/patología , Esofagoscopía , Femenino , Humanos , Liquen Plano/patología , Masculino , Persona de Mediana Edad
16.
Gastroenterol Clin Biol ; 32(1 Pt. 1): 11-4, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-18341972

RESUMEN

Brunner's Gland Hamartoma (BGH) is a benign tumor of the duodenum that can lead to gastrointestinal bleeding and intestinal obstruction. Endoscopic resection has seldom been reported. We describe the case of a duodenal obstruction caused by a large BGH (6 cm x 4 cm). We report a 57-year-old woman hospitalized for tarry stools, weight loss and anorexia. Endoscopy revealed a large BGH (6 cm x 4 cm). Endoscopic ultrasound (EUS) revealed a submucosal duodenal tumor. In this paper, we report a case of large hyperplasia of BGH, successfully treated by endoscopic technique.


Asunto(s)
Glándulas Duodenales/cirugía , Enfermedades Duodenales/cirugía , Duodenoscopía/métodos , Hamartoma/cirugía , Obstrucción Duodenal/cirugía , Electrocirugia , Endosonografía , Femenino , Estudios de Seguimiento , Humanos , Hiperplasia , Persona de Mediana Edad , Pólipos/cirugía , Tomografía Computarizada por Rayos X
17.
Gastroenterol Clin Biol ; 32(4): 363-9, 2008 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-18355995

RESUMEN

OBJECTIVES: A newly developed computed virtual chromoendoscopy system, Fuji Intelligent Color Enhancement (FICE) technology, decomposes images by wavelength, then directly produces reconstructed images with enhanced mucosal surface contrast. The aims of the present study were to determine the quality of information provided by computed virtual chromoendoscopy for detecting gastrointestinal polyps and to identify the best channel setting for imaging. PATIENTS AND METHODS: Thirty-one upper endoscopy procedures were performed in 31 patients using Fujinon 1.3-million-pixel endoscopes with zoom. A polyp was diagnosed in 45% of the patients. Six experienced endoscopists, who had never used the computed virtual chromoendoscopy system before, analysed the 31 endoscopy reports. Each endoscopy report included 11 images (one conventional image and one image for each FICE channel). The endoscopists used a 10-cm analog visual scale to determine the three best FICE channels, and to evaluate the quality and pit pattern of the chromoendoscopy images. RESULTS: Channel 4 (red: 520; green: 500; blue: 405) was considered the best channel in 39.7% of the reports (p<0.0001) and was among the best three in 77%. For 94.1% of the reports, the best FICE channel image was considered superior to the conventional image (p<0.0001). Median pit pattern score was 9.43 for computed virtual chromoendoscopy and 7.08 for conventional endoscopy (p<0.001). CONCLUSION: Fuji Intelligent Color Enhancement (FICE) channel 4 images were significantly better than conventional images. Computed virtual chromoendoscopy enabled better analysis of the pit pattern and the normal-pathological mucosal junction. Computed virtual chromoendoscopy can be used to identify gastroduodenal polyps and to assist in complete polypectomy.


Asunto(s)
Diagnóstico por Computador/métodos , Enfermedades Duodenales/patología , Duodenoscopía/métodos , Gastroscopía/métodos , Pólipos/patología , Gastropatías/patología , Color , Humanos
20.
Rev Med Interne ; 26(3): 179-88, 2005 Mar.
Artículo en Francés | MEDLINE | ID: mdl-15777580

RESUMEN

UNLABELLED: Hemolytic uremic syndrome is a rare condition during gemcitabine therapy. METHODS: We report six new cases of hemolytic uremic syndrome related to gemcitabine, three issued from a retrospective study of 136 consecutive patients treated with gemcitabine for which a systematic screening of this side effect has been performed and 29 cases with clinical data available identified in the literature in order to better characterised frequency and clinical presentation of this side effect. RESULTS: In our series, frequency of HUS is 2.2% and is higher than this previously reported (0.015%) or estimated with the data of clinical trials analysed (0.072 %). For 35 cases with clinical data available, the patients were always treated for a local advanced and/or metastatic disease. For our cases and for literature cases, at the time of diagnosis of hemolytic uremic syndrome, mean number of doses received (mean+/-standard deviation. Minimum/maximum)) (personal cases: 26.5+/-6.6. 16/36, literature cases: 21+/-11. 8/54), cumulative dose received (g/m2) (personal cases : 24.5+/-6.3. 16/31.6, literature cases: 21.7+/-12.4. 2.4/54) and duration of treatment (months) (personal cases: 8.2+/-1.9. 5.6/11, literature cases: 8.5+/-4.0. 3/18) are very closed and high individual variations observed for these factors are not consistent with a time and/or dose dependant toxicity. New-onset hypertension or exacerbation of underlying hypertension is the most common clinical manifestation, with mild anemia; thrombocytopenia is inconstant. The degree of severity of renal failure is highly variable. The existence of subacute clinical form with progressive worsening of the symptoms and biological form at the time of diagnosis suggest the interest of a systematic clinical and biological screening of this side effect, before each injection of gemcitabine. Early prognosis is linked to the evolution of hemolytic uremic syndrome and after hemolytic uremic syndrome healing, cancer progression. Treatment include gemcitabine discontinuation, antihypertensive drugs and if necessary fresh frozen plasma. CONCLUSIONS: Systematic clinical and biological screening of hemolytic uremic syndrome during gemcitabine therapy should allow to better know this complication, to recognize and treat it earlier with a potential positive impact for patients.


Asunto(s)
Antimetabolitos Antineoplásicos/efectos adversos , Antimetabolitos Antineoplásicos/uso terapéutico , Desoxicitidina/análogos & derivados , Desoxicitidina/efectos adversos , Desoxicitidina/uso terapéutico , Síndrome Hemolítico-Urémico/inducido químicamente , Anciano , Progresión de la Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias/tratamiento farmacológico , Pronóstico , Estudios Retrospectivos , Gemcitabina
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