Nogent-le-rotrou, France

Survival and Description of Care for Patients With Degenerate Vaterian Ampulloma

A Vater's ampulloma is a rare digestive tumour which accounts for under 1% of all digestive tumours. In terms of incidence, it is the 3rd most common biliary tract tumour after gallbladder cancer and common bile duct cancer. The incidence of ampullary adenocarcinoma is not well known although it is estimated to be around 0.49 per 100,000 people. The known risk factors are familial adenomatous polyposis (FAP) and Gardner's syndrome, HNPCC (Hereditary Non-Polyposis Colorectal Cancer) syndrome, Peutz-Jeghers syndrome, Crohn's disease and coeliac disease. Except in its highly localised forms, ampulla of Vater carcinoma carries a poor prognosis. It is a highly lymphophilic disease which commonly metastasises, particularly to the lymph nodes and liver. The prognosis is however considerably better than that of pancreatic adenocarcinoma. In one study which compared 71 ampullomas with 144 adenocarcinomas of pancreatic head, the 5-year survival was 60% for the ampullary carcinomas compared to 20% for pancreatic adenocarcinomas. More generally, the 5-year survival rate in the literature is between 40-60% and, depending on the study, 10-year survival is approximately 38% . The only curative treatment is complete excision (surgical or endoscopic) of the lesions which is possible in 80% of cases , with or without adjuvant treatment. The reference radical treatment is cephalic duodenopancreatectomy (CDP). The 5-year survival rate in cases of adenocarcinoma excised by CPD is in the region of 50%, rising to 60-70% if no lymph node invasion is present, compared to 30% when lymph nodes are invaded and median survival is approximately 4.5 years . The indication for adjuvant treatment is still debated: in view of the aggressive nature of the disease and the high recurrence rate, it would appear appropriate to offer adjuvant treatment, although several studies have failed to find any benefit on survival with post-operative radio-chemotherapy, the most widely studied treatment at present, compared to excision alone . There is only one single randomised study comparing these two forms of management, which shows no benefit in terms of 2 and 5-year survival, although only a small number of patients had an ampullary tumour in this study . The conclusions of several retrospective studies are more subtle, showing results in favour of adjuvant treatment in patients with lymph node disease or a large tumour (T3/T4) . Some groups have tested the merits of peroperative irradiation. It would appear that this technique does not improve survival, although data on this subject are extremely patchy . Administration of exclusive adjuvant chemotherapy has been examined in a single randomised study. In this phase III study (ESPAC 3), median overall survival of patients who received adjuvant chemotherapy with FUFOL Mayo for 6 months (n=101) or gemcitabine (n=98) was not significantly improved compared to survival in patients undergoing surgery and not receiving complementary treatment (57.1 versus 43 months, HR= 0.85, p=0.32). A subgroup analysis suggested that the benefit of chemotherapy could be greater in the subgroup of patients with RO resection (p= 0.057, 91% of cases). Mean survival in patients suffering inoperable tumours is between 9 and 20.4 months depending on the study . It should be noted however that most of these studies have included tumours other than ampullomas (particularly small bowel adenocarcinomas), making it more difficult to interpret these results, and also that many are old results dating from before the era of modern chemotherapies. At present there are no phase II studies specifically examining medical treatment of degenerated, inoperable Vater's ampullomas. Some groups propose chemotherapies with 5-FU or gemcitabine, analogous to the treatments used for intestinal, pancreatic or biliary tumours, although neither one has been shown to date to be superior to the other, nor have decision-making criteria been clearly established. One phase II study published in 2009 proposed CAPOX as the reference treatment in light of the promising results obtained. Patients suffering from ampullary cancer in this study however were combined with patients who were suffering from small bowel adenocarcinoma. In conclusion, a national cohort study is proposed to undertake a prospective analysis of the outcome of all patients treated for ampullary adenocarcinoma (particularly survival without recurrence and prognostic indicators for excised tumours and the duration of disease control for tumours treated with palliative chemotherapy). The treatment methods will be left to the free choice of the investigator and all patients may be included, regardless of stage of their disease. In this study, freezing of tumour fragments is encouraged, as this cohort will be supplemented by a later biological study. In order to recruit sufficient patient numbers, the study will be based on participation of the cooperative groups involved in the management of digestive cancers.

Research of the Consequences on the Digestive Tract Following the Proposed Treatments for a Urinary Infection in Children

Current Use in Intensive Care Units by Intensivists of Antihypertensive Drugs

Multicenter, prospective observational cohort study on 200 patients, by doctor's questionnaire on the prescription of antihypertensive drugs in intensive care, follow-up over 72 hours of the prescription.

Long-term Sequelae of Childhood Meningitis and Meningococcal Purpura Fulminans

Covid-19 Pediatric Observatory

National Cohort of Children Born to HIV-positive Mothers

The goal of the CO11 national cohort is to provide with CO1 a wider surveillance system to monitor changes in the rate of mother to child transmission and preventive practices in France and especially to identify the occurrence of toxicity in children exposed perinatally to antiretroviral drugs. The CO11 EPF enrolle HIV infected women who delivery in maternity generally smaller than CO1 maternity (15 sites in Paris area, 35 in mainland France and 4 in the DOM). Maternal clinical, biological and therapeutic data before and during pregnancy were collected at delivery, with simplified questionnaires. The children are examined clinically and biologically at birth, 6, 12 and 24 months.

Conduct of Nasal High Flow Oxygen in Acute Respiratory Failure

Nasal high flow oxygen therapy is increasingly used as a first-line treatment for hypoxemic acute respiratory failure, because of its remarkable tolerance (in comparison with NIV) and its physiological effects (nasopharyngeal dead space washout, positive end-expiratory pressure effect with possible alveolar recruitment, better matching with the patient's inspiratory flow, more reliable and adjustable FiO2); that together contribute to a reduction in respiratory workload and better oxygenation. Although many studies have investigated the clinical benefits of nasal high flow during acute hypoxemic respiratory failure, there are no data (and even less recommendations) on how to best conduct this technique, including its initiation and its weaning periods. Because different approaches exist among clinicians, investigators believe that a multicenter observational study that would collect data regarding the different ways high flow is conducted in patients with acute respiratory failure is necessary before performing an interventional study that would test and compare different strategies in order to answer the question: what are the best strategies (in terms of flow and FiO2 settings) to initiate and to wean high-flow oxygen therapy in patients with acute respiratory failure? Investigators will assess in a multicenter, observational study, the way clinicians use nasal high flow therapy in patients with acute respiratory failure in order to try identify one or more strategies that may be then compared in an interventional study.

Bougie Sleeve Trial

Laparoscopic sleeve gastrectomy (LSG) has become an increasing bariatric procedure. The most common complication is gastric leak from the staple line, observed in approximately 3% of cases, and can result in long and incapacitating treatment. The diameter of the bougie used to calibrate the remnant stomach could impact the rate of gastric leak, a higher diameter being correlated with a lower risk of leak, without lowering long-term weight loss. The aim of this prospective randomized trial is to compare the outcomes of LSG according to the use of a standard care bougie calibre or 48-Fr on postoperative gastric leak and mid-term weight loss.

Systemic Oxaliplatin or Intra-arterial Chemotherapy Combined With LV5FU2 +/- Irinotecan and an Target Therapy in First Line Treatment of Metastatic Colorectal Cancer Restricted to the Liver

Randomised Study Evaluating Adjuvant Chemotherapy After Resection of Stage III Colonic Adenocarcinoma in Patients of 70 and Over

Colorectal cancer occurs mainly in elderly patients. Recent estimation showed that in France more than 50% of the patients diagnosed with a colorectal cancer are 70 years old or more. Adjuvant chemotherapy has demonstrated a benefit on disease-free survival and overall survival after a stage III colon cancer resection. Nevertheless adjuvant chemotherapy is poorly used in elderly patients. Prognostic improvement with chemotherapy based on 5FU is suggested by a post-hoc analysis of randomized prospective clinical trial. But elderly patients in this study were highly selected and patients older than 80 represented only 0.7% of the total population. Thus, there is still a concern about the benefit of adjuvant 5FU-based chemotherapy in very elderly unselected patients. The recommended treatment for stage III adjuvant chemotherapy is a combination of fuoropyrimidine and oxaliplatin. Nevertheless oxaliplatin did not demonstrated survival advantage in elderly patients. Altogether there are still two matters of debate: - First, is there a benefit of fluoropyrimidine-based adjuvant chemotherapy for unfit elderly patients? - Second, is there a benefit of oxaliplatin-based adjuvant chemotherapy for fit elderly patients? The aim of this randomized phase III study is to evaluate the benefit for disease-free survival of adjuvant chemotherapy in elderly patient and which chemotherapy. The elderly patient population will be dichotomized into two groups according to physician's choice after a multidisciplinary evaluation involving a geriatrician, with two different randomization assignments. The patients with an expected life-expectancy below 4 years according Lee score are excluded of this study. Some biological tumour abnormalities are more frequently observed in elderly (i.e. mismatch repair deficiency), therefore an evaluation of specific biological prognostic factors is needed in elderly population.