Active clinical trials for "Neoplasms"

The purpose of this study is to learn how blood flows to tumors in patients treated with I-125 plaque brachytherapy for uveal melanoma.

The aim of the study was to describe postoperative weight change in adults undergoing surgery for craniopharyngioma and identify preoperative factors associated with it.

Radical gastrectomy for gastric cancer with D2 lymph node dissection has been widely applied in advanced gastric cancer. However,for most patients,tumor local-regional recurrence has been proven unavoidable. Recently, many clinical studies have proved that some cancer cells and cancer nodes exist in the mesogastrium which can be hardly removed by conventional radical gastrectomy with D2 lymphadenectomy. It is suggested that Complete mesogastrium excision (CME) is imperative and should be added to D2 lymphadenectomy in order to reduce the risk of local recurrence. Thus, the comparison of short-term and long-term outcome between laparoscopic D2 lymphadenectomy plus complete mesogastrium excision and conventional laparoscopic D2 lymphadenectomy for locally advanced gastric cancer based on a well designed randomized controlled trial is needed.

Pelvic lymph node dissection (PLND) is an important step in the surgical staging and treatment of gynecologic malignancies. Sometimes, complicated lymphoceles after PLND often delay adjuvant treatment including chemotherapy and radiation therapy, which potentially affects the success of cancer treatment. A number of surgical techniques have developed, but failed to reduce the incidence of pelvic lymphoceles after PLND. The investigators hypothesized that floseal can prevent lymphoceles in patients with gynecologic cancer who has undergone PLND. The investigators designed prospective randomized controlled study as a pilot study. The investigators will randomly apply floseal to one side of pelvis after bilateral PLND, and observe the occurence of pelvic lymphoceles after 6 months later.

The purpose of this study is to obtain high quality specimens for molecular studies for the identification and characterization of genetic mutations involved in the pathogenesis of familial myeloid malignancies. Specimens obtained will be de-identified, linked to basic clinical data, and sent to Washington University (Division of Oncology, St. Louis, MO) for molecular analyses. Some specimens sent to Washington University may also be used for quality control analyses.

A retrospective analysis of historical data looking at relapse free survival and overall survival rates in adult philadelphia negative B-pre-cursor acute lymphoblastic leukemia patients.

Non-intubated thoracoscopic surgery has been proved as an adequate alternative for management of many lung conditions such as pneumothorax , lung volume reduction, pulmonary metastasectomy, removal of lung nodules, segmentectomy and lobectomy. However, the hemodynamic changes during one lung ventilation have not been fully investigated. The goals of this study are to compare the changes of hemodynamics (including blood pressure, heart rate, cardiac output, pulse pressure variation, fluid responsiveness) during one lung ventilation between conventional intubated and non-intubated vedio-assisted thoracoscopic (VATS) operations.

Prospective multicenter observational non-interventional study to assess routine clinical practice of Bendamustine use in the second line therapy of relapsed or refractory indolent B-cell non-Hodgkin's lymphoma

The aim of this study was to investigate changes in abdominal tissue perfusion during adenosine vasodilation. Our hypotheses were that CT perfusion measurements are altered by changes in the circulatory system mediated by adenosine, and a more differentiated assessment of the circulatory capacity of abdominal tumours could be achieved by sequential rest and adenosine vasodilation CT perfusion measurements.

The study goal is to collect blood samples from individuals at risk for lung cancer in order to identify protein markers for diagnosis of lung cancer in the Chinese population.