View clinical trials related to Nephrectomy.
Filter by:The investigators are interested in whether or not the use of a mobile health (mHealth) application increases the rate of follow-up compliance among living kidney donors. The investigators aim to test this by randomly assigning living kidney donors to the intervention (use of mHealth application to complete required living kidney donor follow-up at 6 months, 1 year, and 2 years) or control arm (standard of care) upon discharge from their initial donation hospitalization, and tracking follow-up compliance over time. The study population will be approximately 400 living kidney donors who undergo donor nephrectomy at Methodist Specialty and Transplant Hospital (200/year for 2 years). The investigators will also recruit patients from the Vanderbilt University Medical Center into the study, however, these study participants are not a part of the Pilot Randomized Clinical Trial (RCT).
The aim of this study is to determine whether intravenous acetaminophen compared to enteric acetaminophen offers increased efficacy in patients who are scheduled for laparoscopic donor nephrectomy and for patients scheduled for robot-assisted, laparoscopic nephrectomy for cancer at the University of Rochester Medical Center. The standard surgical and post-operative care, including post-operative pain management will not be altered.
Patients with respiratory disease have an increased risk of developing complications perioperatively. The use of regional anesthesia decreases this risk with better postoperative outcome. The aim of this study is to compare the safety and efficacy of thoracic spinal versus thoracic epidural anesthesia for open nephrectomy in patients with obstructive/restrictive lung disease.
This study evaluates the impact of nephrectomy in renal cancer on blood pressure and renal function. The patients will have a follow-up of their blood pressure and renal function until 6 months after their operation.
The purpose of the study is to evaluate patient-specific surgical simulation by permitting pre-operative rehearsals, in the form of the surgeon completing a dry run of the procedure on a model constructed from the patient's radiological studies that replicates every aspect of their organs. The investigators' aim is to evaluate the effectiveness of this form of practice in optimizing intraoperative and postoperative outcomes . The investigators hope eventually to use these rehearsals as a standard study tool for surgical training.
This study evaluates whether using small financial incentives increases patient compliance with nationally-mandated living kidney donor follow-up at 6-months, 1-year, and 2-years after donation. Half of participants will receive a financial incentive (mailed gift card) after completing required follow-up activities (brief questionnaire and lab draw), while the other half will be asked to complete the required follow-up activities but will not receive a financial incentive (current standard of care).
The perirenal fat may alter renal function by secreting fibrotic inflammatory agents when accumulates during obesity. Nephrectomy for renal tumor is a model that would provide tissue samples to test this hypothesis. Renal tumor could itself be responsible for inflammation and fibrosis in its environment. This study aims to measure the influence of the tumor on his kidney Environment and fat and define molecular markers not influenced by renal tumor. The main objective is to compare the inflammation of the perirenal fat taken in two locations in the same patient, in contact and 4 cm from the outer edge of the tumor, each patient as his own control. The secondary objective is to compare the degree of interstitial fibrosis of the renal cortex in the same sampling methods.
Surgery plays a central role in kidney cancer management being the only therapy that offers the possibility of healing the patients. Currently, the partial nephrectomy is a standard technique because it meets the principle of nephron sparing surgery. A partial nephrectomy requires a control of the renal blood flow using a clamp, which can be parenchymal or vascular (pedicular). In France, most of the centers use pedicular clamping. It is well established that this technique results in warm ischemia of the entire healthy parenchyma and can lead to permanent kidney damages. Currently, no study evaluated the impact of parenchymal clamping on the healthy parenchyma. The aim of the investigators study is to evaluate the nephrotoxicity of the healthy parenchyma due to parenchymal clamping during partial nephrectomy. This assessment will be done through a microdialysis technique. The microdialysis probe is directly implanted in the healthy unclamped parenchyma and will allow us to measure in real time, during the surgery, the biological changes related to anaerobic metabolism of renal interstitial space. All those measures will be completed by urinary and plasmatic assessments. Oxidative stress will be assessed using four markers of tubular viability : Interleukin 18 (IL18), Kidney Injury Molecule-1 (KIM-1), Neutrophil Gelatinase-Associated Lipocalin (NGAL) and cystatin C and four parameters of anaerobic metabolism : lactate, pyruvate, glycerol and glucose. This is a prospective pilot study limited to 10 patients included over 12 months. Depending on the results, it will be further developed by a second study comparing parenchymal with pedicle clamping.
Prospective, randomized trial comparing surgical, functional and oncological outcomes between clamp and clamp-less robot assisted partial nephrectomy.
Background Fast-track concepts reduced hospital stay from 15-20 days to three days for patients who underwent a colon resection [1-5]. A well-designed pilot study determined the efficacy of a fast-track program for a laparoscopic radical nephrectomy, and the fast-track group was discharged earlier from the recovery room median (74+/-23 v 103+/-47 minutes) as well as from the hospital median (41+/-11 v 59+/-11 hours) [6]. Implementation of the principles of the fast-track program shortened the postoperative hospital stay from eight to four days for patients who underwent an open radical nephrectomy [7]. Taek-Gu Lee et al. documented how early mobilization after colon surgery resulted in reduced recovery times without increased complications [8]. Laparoscopic surgery is minimal invasive with less surgical stress, morbidity and mortality [9]. The use of laparoscopic nephrectomy in Denmark reduces the hospital stay to 5.2 days which did not meet the foreign countries outcome [06]. Therefore a combination of the advantages of laparoscopic surgery and the fast-track concepts could be used by nephrectomies. However, no prospective studies describing the course after nephrectomies, where these advantages are exploited and it is important to make a basic study to describe and understand the factors of surgical outcome. Aim of study To describe the postoperative period after laparoscopic trans-peritoneal nephrectomy that performed as an ambulatory procedure. Method A prospective study will involve 62 patients who have been diagnosed with Cancer Renis DC649. All patients will receive the results of CT-scanning at outpatient and of them who meet the inclusion criteria for the study will be informed about the study and will receive a written information according to appendix 1., and a new time with (NA) to get the results for kidney function and oral information about the study as well as their acceptation to be connected to the study, those patients will receive a standard recommendation to be discharged from hospital on the day of their operation and they will restart their normal activities the day after the operation unless there are preventing factors. All patients will be thoroughly informed by the examiner how to complete the questionnaire and will come through different tests according to appendix 2., a blood test will be taken according to appendix 12. All patients should have a CT-scanning of abdomen, chest X-ray and kidney function test before the operations. Statistic The number of patients, have been decided to be included to each study, is based on the realized number of nephrectomy operations that can be done during the specified period within each department and not on the statistic power of study. The Scheffé's test will be used for multiple comparisons. The correlation between variables will be evaluated by using the Spearman's rank correlation coefficient. P values less than 0.05 is considered significant. Statistical analyses will be performed by SPSS statistic program software. Publications The results of each study, irrespective of whether these are positive or negative, will be published in international scientific journals and will be distributed at relative conferences. The published articles will have Azawi NH as first author, Christensen T as last author and co-authors according to Vancouver rules. Ethics The study will be reported to the Danish National Committee on Biomedical Research Ethics and regionsjaelland paraplygodtkendelsen data control, Ph.D. student (NA) will apply for enrollment to the PhD programme at the University of Copenhagen. Consent forms will be received from all patients and they will receive written information about project. The project will protect all of the data gathered.