56 research outputs found
Targets for high repetition rate laser facilities: Needs, challenges and perspectives
A number of laser facilities coming online all over the world promise the capability of high-power laser experiments with shot repetition rates between 1 and 10Ã\u82 Hz. Target availability and technical issues related to the interaction environment could become a bottleneck for the exploitation of such facilities. In this paper, we report on target needs for three different classes of experiments: Dynamic compression physics, electron transport and isochoric heating, and laser-driven particle and radiation sources. We also review some of the most challenging issues in target fabrication and high repetition rate operation. Finally, we discuss current target supply strategies and future perspectives to establish a sustainable target provision infrastructure for advanced laser facilities
Transumbilical cord access (TUCA) for laparoscopy in infants and children: simple, safe and fast
Morphological Differentiation Towards Neuronal Phenotype of SH-SY5Y Neuroblastoma Cells by Estradiol, Retinoic Acid and Cholesterol
Vergleich der Laparo-Endoscopic Single-Site Appendektomie (LESS-A) und konventionellen laparoskopischen Appendektomie in Bezug auf Operationsdauer und Komplikationen im Kindesalter
Lack of Renal Artery Inspection is Associated with Low Resectability at the Renal Hilus in Relapsed High-Risk Neuroblastoma
Fenretinid kombiniert mit Doxorubicin oder Bromodesoxyuridin reduziert die Viabilität von Neuroblastomzellen
Single-port laparoscopic percutaneous extraperitoneal closure of femoral hernia in children and adolescents: case series
Femoral hernias are an often unexpected groin pathology during childhood. However, the pediatric surgeon has to be aware to diagnose femoral hernia and to repair this condition. This is the first report on laparoscopic percutaneous extraperitoneal closure of femoral hernia (LPEF) in children and adolescents. Over a 6-year period in a bi-institutional clinical study, we retrospectively identified six children and one young adult who underwent LPEF repair. Femoral hernia was laparoscopically confirmed in seven patients. Ages at surgery were 3, 5, 7, 7, 8, 8.5, and 18 years, respectively. In the first case, we combined laparoscopic diagnosis with open repair. In the consecutive six cases, hernias were repaired minimally invasively with the percutaneous extraperitoneal technique described below. During a follow-up between 6 years and 6 months, no recurrence was observed. For LPEF, we percutaneously placed a peritoneal U-shape suture with integrated transfixation of the hernia sac, closed with an epifascial knot. We performed LPEF using two graspers. The peritoneum was percutaneously punctured with a venous cannula through which the suture was inserted. One grasper was inserted through the working channel of the laparoscope to invert the hernia sac into the abdominal cavity. A mini-grasping forceps inserted through the cannula retrieved the thread and completed LPEF. We demonstrate that single-port laparoscopic percutaneous extraperitoneal closure of femoral hernia is successful and quick in children and in adolescents
Role of Surgery in Patients older than 18 months with localized Neuroblastoma (Stage 1-3)
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