Supporting innovation in health care: A short experience in a dedicated unit of the French Ministry of Public Health.

INTRODUCTION: The Delegation for Innovation in Health Care (DIES) was created by the Ministry of Solidarity and Health to centralize and support innovative health care projects. Following its dissolution, only two and a half years after its creation, the members of this delegation aimed to present the projects, which were submitted and treated by the DIES. METHODS: All potential project leaders were free to explain the objectives of their project to our team. These projects were then classified according to their objective, their type, the medical specialty concerned, the target population and their purpose. The DIES graded the degree of innovation, advised on the need for complementary scientific evaluation and oriented the personnel in charge towards fitting financing structures. RESULTS: Between April 2016 and December 2018, the DIES received 269 potential project leaders, almost exclusively from the national territory of France, focused on diversified medical specialties with a slight predilection for chronic diseases and disabilities. The projects were often at an economically tenuous stage of development. Less than 5% of the projects concerned drug therapy. More than a third involved medical devices, including "surgical" projects (predominately orthopedics), disability compensation methodology, vascular problems and bandages. E-health, the organization of care, and a "non-classifiable" category that included wellness projects each represented 20% of the projects. Almost 80% of these projects had some electronically (e-) based mechanism. Only 15% of all projects had the ambition to meet an unmet or poorly covered need. Only about a third of the project leaders presented a clinical or medico-economic evaluation with sufficiently rigorous methodology to assess the achievement of their objectives. CONCLUSION: Innovative health projects are dominated by the search for improvement in the organization of the health care system and the care pathway with e-connected applications. Evaluation of the vast majority of these projects is very difficult and this situation reinforces the idea that these requests should be centralized to improve support for promoters of innovation.

Expert witness testimony step by step and how to prepare it.

The medical expert witness testimony is a key moment in the pathway of patient complaints as well as in the line of defense of the defendant-physician. For the defendant, it is a difficult time, often experienced as humiliating, because his or her competences are questioned, appraised and discussed in public. However, the defendant must perceive and use this encounter as an opportunity to express his/her viewpoint on the medical accident. This article provides the principal juridical rules that govern the medical expert witness testimony that must be known, as well as some practical advice on how the medical expert witness testimony evolves and how to protect oneself from the complaints, In order to enable the defendant to best prepare for this confrontation between the involved parties.

[Cholangiocarcinoma: epidemiology and global management]. / Cholangiocarcinomes: épidémiologie et prise en charge globale.

SCOPE: Cholangiocarcinoma, or biliary tract tumors, are rare tumors for which survival is short, as diagnosis is often made at an advanced stage. Indeed, diagnosis remains difficult, since symptoms are often unspecific and appear at latest stages. This article presents an update of recent data and therapeutic options. CURRENT SITUATION AND SALIENT POINTS: Several etiologic factors have been identified, but for most patients, none of these factors can be found. Prognosis is often poor, and remains difficult to establish because of the lack of sufficient large-scale studies looking at the impact on preexisting tumor characteristics on overall survival. Surgery remains when possible the gold standard. When tumor removal is impossible, due to a local extension, the appropriate care of patients remains to be defined. Chemotherapy has been proposed with evidence of objective response but limited data on its ability to prolong overall survival and to enhance quality of life. Active chemotherapies appear to be made from combination of an antimetabolite, such as 5-fluorouracile or gemcitabine, and a platinum drug. PERSPECTIVES: In the near future, indications of chemotherapy could be enlarged and targeted therapy might also be used, since several molecules have been tested in preclinical studies, and be offered to patients in clinical trials.

Doppler assessment after right hepatectomy confirms the need to fix the remnant left liver in the anatomical position.

BACKGROUND: The remnant left liver after right hepatectomy tends to rotate spontaneously into the right subphrenic space. This rotation might induce venous outflow impairment. The aim of this study was to assess immediate venous outflow in the left hepatic vein by intraoperative Doppler ultrasound (US) according to the position of the remnant liver. METHODS: From August 2003 to February 2004, assessment of left hepatic venous outflow was systematically performed in 44 consecutive right hepatic resections by Doppler US in spontaneous and anatomical positions. The anatomical position was defined as the position in which the falciform ligament was in its strict median position. RESULTS: The placement of the left liver from the spontaneous position to the anatomical position resulted in a significant increase in left hepatic venous outflow (20.1 +/- 5.7 versus 8.5 +/- 4.4 cm/s; P < 0.0001). In the spontaneous position, the decrease in left hepatic venous outflow persisted even without division of the left triangular ligament (10.2 +/- 5.4 versus 21.7 +/- 5.3 cm/s in the anatomical position) or removal of the middle hepatic vein (8.4 +/- 3.4 versus 21.3 +/- 5.8 cm/s). CONCLUSION: : Results of this study strongly suggest that after right hepatectomy the remnant left liver should always be fixed in the anatomical position.

Assessment of the benefits and risks of percutaneous biopsy before surgical resection of hepatocellular carcinoma.

BACKGROUND/AIMS: Because of a potential risk of needle tract seeding, the use of ultrasound (US)-guided biopsy for the diagnosis of hepatocellular carcinoma (HCC) is controversial. This study was aimed at determining the usefulness, accuracy and safety of this technique as well as the incidence of needle tract seeding. METHODS: From 1986 to 1996, 137 patients who underwent resection or transplantation for suspected HCC had US-guided biopsy before surgery. The analysis of the resected liver was compared to the results of biopsy. Patients were assessed with a mean follow up of 38 months. RESULTS: The diagnosis of HCC was established by biopsy in 122 patients (89%). Thirteen of the 15 patients with negative biopsy were shown to have HCC after surgery. The remaining two patients had non-malignant nodules. Sensitivity and accuracy of US-guided biopsy were 90 and 91%, respectively. Accuracy was significantly influenced by the location of the nodule but not by its size. Needle tract seeding occurred in two patients (1.6%). CONCLUSIONS: In this series, the incidence of needle tract seeding was less than 2% and no recurrence was observed after local excision. This risk should be balanced with the risk of deciding an aggressive treatment in a patient without malignancy. Patients with negative biopsy should undergo a second biopsy and/or repeated investigations by imaging techniques.

Intraductal papillary mucinous tumors of the pancreas: pancreatic resections guided by preoperative morphological assessment and intraoperative frozen section examination.

BACKGROUND: We undertook this study to assess the results of a policy of limited pancreatic resections for intraductal papillary-mucinous tumors (IPMT), guided by a standardized preoperative morphological assessment and the frozen section histologic examination of pancreatic resection margins. METHODS: From 1991 to 1998, there were 41 patients who underwent resection of IPMT in our center after standardized morphological preoperative assessment, including abdominal computed tomography scans, endoscopic retrograde cholangiopancreatography, and endoscopic ultrasonography. All patients but one underwent a partial pancreatic resection. RESULTS: Preoperative assessment had an 89% diagnostic accuracy for IPMT. It detected malignant transformation with a 67% sensitivity and a 95% specificity, but failed to correctly assess ductal extension of the disease in 17 cases (41%). The diagnostic accuracy of frozen section histologic examination of the pancreatic resection margin was 92%. There was no recurrence in case of in situ carcinoma when epithelial lesions were completely resected (8 cases) nor in lower grades of dysplasia (23 cases). Conversely, recurrence was constant in invasive carcinoma (10 cases) regardless of the status of the pancreatic margin. CONCLUSIONS: Frozen section histologic examination of the pancreatic resection margin is useful and reliable to ensure a complete resection of IPMT by a partial resection that prevents recurrence of noninvasive lesions.

Helical CT assessment in hilar cholangiocarcinoma: correlation with surgical and pathologic findings.

OBJECTIVE: Our goal was to assess the usefulness of helical CT in the presurgical evaluation of hilar cholangiocarcinoma. CONCLUSION: Helical CT aids in tumor localization and in assessment of parenchymal, biliary intrahepatic, and portal involvement in hilar cholangiocarcinoma. However, helical CT is not effective in the assessment of biliary extrahepatic, arterial, and lymph node involvement.

[Assessment of postoperative infective risk by delayed hypersensitivity tests. The influence of deficient nutrition and its correction (author's transl)]. / Appréciation du risque infectieux post-opératoire par les tests d'hypersensibilité retardée. Influence de la dénutrition et de sa correction.

Cellular immunity was assessed in 120 patients by simple skin tests (tuberculin, candidine, varidase, C.C.B., trichophyton). There is a close relationship between total anergism and the risk of severe infection in digestive surgery, and between anergism and deficient nutrition as determined by laboratory and anthropometric criteria. Preoperative correction of nutritional deficiency, which is often underestimated, has an inconstant effect upon skin test responses, but seems to decrease severe postoperative infective complications.