There are more than 498,563 clinical trials published worldwide with over 60,000 trials that are currently either recruiting or not yet recruiting. Use our filters on this page to find more information on current clinical trials or past clinical trials (free or paid) for study purposes and read about their results.
To assess the impact of percutaneous renal access technique on outcomes of percutaneous nephrolithotomy in management of renal stones by comparing the Triangulation and ''eye of the needle'' (or bull's eye) and the stone targeted techniques in the following:- 1. Stone free rate (SFR) (primary outcome). 2. Complicatins of surgery (primary outcome). 3. Change in haematocrit pre and postoperative (secondary outcome). 4. Operative time (secondary outcome). 5. Duration of hospitalization (secondary outcome). . 7-Fluroscpic screening time (FST) (secondary outcome). . 8- Change in haematocrit pre and postoperative (secondary outcome).
Covid-19 disease is one of the most important health system challenges which is the result of the recent SARS CoV-2 virus outbreak. So far, despite the use of different types of pharmaceuticals, none has been served as a curative treatment and research is continued to find one or more effective drugs; either palliative or curative ones. One of the most important clinical problems in Covid-19 patients is lung involvement, which may causes significant sequels; leading to a main part of morbidity and/or mortality. Surfactant is one of the drugs that can have valuable effects on the lungs, both by reducing the alveolar surface tension and by exerting immunomodulatory effects. In a previous study by the same team, favorable effects were seen in intubated patients; however, the aim of this study was to evaluate the effect of exogenous nebulized surfactant in the pre-intubation stages of the disease.
Due to the biological characteristics and liver anatomical characteristics of liver cancer, liver cancer cells easily invade the vascular system, especially the portal venous system, forming portal vein tumor thrombus (PVTT) , and its incidence is reported to be 44.0% ~ 62.2%. Once PVTT occurs in patients with liver cancer, the disease develops rapidly, and intrahepatic and extrahepatic metastasis, portal hypertension, jaundice, and abdominal effusion can occur in a short time with an average survival time of 2.7 months. PVTT is one of the major adverse factors for the prognosis of liver cancer and occupies an important weight influence in the clinical staging system of liver cancer. In some hepatocellular carcinoma (HCC) patients with PVTT and selective resectability, surgery versus non-surgery can lead to better survival of patients. A retrospective analysis showed that neoadjuvant radiotherapy can reduce the extent of invasion of PVTT and improve postoperative survival in some HCC patients. Another prospective study showed that neoadjuvant radiotherapy could significantly improve the overall survival of resectable liver cancer with PVTT, and neoadjuvant radiotherapy could improve the 2-year survival of patients from 9.4% to 27.4% 27.4%, with an effective response of 20.7%. This study is a prospective, single-center, single-arm study to assess the efficacy and safety of neoadjuvant therapy with tislelizumab combined with IMRT for resectable liver cancer with PVTT.
The aim of this study is to detect effect of oral zinc supplementation in pediatric patients with dilated cardiomyopathy.
Comparison of docetaxel and Nab-paclitaxel in neoadjuvant chemotherapy for breast cancer
Fencing competitions can last between nine and eleven hours, during which athletes wear layers of protective equipment that impair evaporative heat transfer and spend a large amount of time at exercise intensities > 85% maximum heart rate. Fencing performance can potentially contribute to heat stress due to increases in core temperature. Elevated core temperatures could hamper performance, and therefore the implementation of a strategy to reduce core temperature increases could lead to augmented fencing performance. Cooling methods are limited for use between fencing matches and during short breaks within a direct elimination match. Furthermore, due to multiple layers of thick protective equipment cooling method applications are limited primarily to the facial area. A potential cooling strategy, during fencing competition, includes the utilization of a water facial mist spray combined with fanning of the face. Therefore, the aim of this study is to investigate the novel use of facial cooling on core temperature, relevant physiological parameters, perceived exertion and thermal comfort and sensation during a simulated fencing competition performance, in male epee fencers.
Sleep deprivation has been found to impact exercise performance. The effects of both partial (several hours) and full (24+ hours) sleep deprivation on exercise performance has shown effects on rating of perceived exertion, rate of oxygen consumption, respiratory exchange ratio, and heart rate. A common practice with athletes is to perform regular physiological testing (submaximal and maximal) in order to assess their fitness and to determine training intensities. However, the effects of sleep deprivation on those same physiological test results has not been investigated Therefore, the purpose of this study is to investigate the effects of partial sleep deprivation on physiological test results.
Acute kidney injury (AKI) is a common and serious complication after aortic dissection (AD), and it is closely related to the inflammatory response associated with cardiopulmonary bypass. Hemoperfusion can reduce the level of systemic inflammatory response effectively in patients with sepsis. Some studies have tried to apply hemoperfusion to cardiopulmonary bypass surgery, and put forward the concept of "absorptive cardiopulmonary bypass", but there are few related research reports. The use of hemoperfusion during cardiopulmonary bypass can reduce the level of systemic inflammatory response, thereby reducing the risk of postoperative AKI and improving the prognosis of patients. The Cardiovascular Surgery Department of the First Affiliated Hospital of Jiaotong University is one of the first demonstration units of "adsorption-type cardiopulmonary bypass" in China. Our previous retrospective analysis shown that intraoperative hemoperfusion can effectively reduce the occurrence of postoperative AKI in patients with AD, compared with traditional cardiopulmonary bypass. In addition, previous studies have found that the increased expression of CIRP after cardiopulmonary bypass can aggravate the oxidative stress and mitochondrial dynamics disorder in renal tubular epithelial cells, thereby inducing AKI. This project is a single-center randomized controlled study. It intends to investigate whether the application of hemoperfusion during cardiopulmonary bypass in patients with AD to reduce the level of systemic inflammatory response can reduce the incidence of postoperative AKI and improve the patient's discharge outcome. At the same time, exploratory studies were conducted to investigate whether hemoperfusion could effectively reduce the expression level of CIRP in the circulation. The successful implementation of this study can provide effective intervention methods and related theoretical basis for reducing the risk of AKI after aortic dissection.
Traumatic brain injury is one of the most common reasons for visits to the Emergency Department. More than 90% of patients who have suffered from head trauma present with a mild traumatic brain injury. Most of these patients do not present any symptom at the time of diagnosis thus delaying the detection. CEREBO®, a non-invasive, portable, rapid, point-of-care intracranial haemorrhage detector can avoid delayed detection by decreasing the time from injury to the initial CT scan. The study aims at assessing the summative usability of the device by determining its ease of use, ease of learning and satisfaction among the medical health professionals. The participants will be trained before the study and will be assessed periodically. Each participant will use the device on at least 10 subjects.
Aortic dissection (AD) is one of the most dangerous cardiovascular emergencies, with rapid onset, rapid progression, high fatality rate, and a variety of life-threatening complications. Acute lung injury (ALI) caused by AD is an important cause of many adverse outcomes. Studies have confirmed that 34.9% to 53.8% of AAD patients have ALI before surgery, and Impaired preoperative lung function may lead to worse oxygenation after AD surgery. The pathophysiological mechanism of AD-induced ALI is complex. A variety of preoperative and intraoperative risk factors can induce or aggravate ALI, such as ischemia-reperfusion injury, deep hypothermic circulatory arrest, and inflammatory reactions. At present, the clinical use of improved surgery, cardiopulmonary bypass perfusion, early anti-inflammatory treatment, and protective lung ventilation can reduce and improve perioperative ALI to a certain extent, but it is still not ideal. In recent years, inhibition of neutrophil activation and aggregation, and reduction of neutrophil elastase activity as targets for the treatment of inflammatory injury have also become an important clinical treatment measure, in order to further reduce the body's inflammatory response to improve and alleviate ALI. Sivelestat sodium, as a neutrophil elastase inhibitor, is the only approved therapeutic drug for ALI/ acute respiratory distress syndrome (ARDS) in the world. It is precisely by reducing the inflammatory infiltration of neutrophils and inhibiting neutrophil elastase activity, thereby exerting a certain protective effect on the lungs. The study takes patients with AD surgery as the research object. On the basis of not terminating and changing the original treatment plans, sivelestat sodium was added in the perioperative period to observe the incidence, and severity of ALI/ARDS in the perioperative period. It aims to explore the efficacy and safety of sivelestat sodium in the treatment of pulmonary insufficiency after AD arch surgery under hypothermic circulatory arrest.