View clinical trials related to Interventional Radiology.
Filter by:Bone pathologies such as fragility fractures and neoplastic bone lesions are frequently encountered in rheumatology. When these lesions affect the pelvis, they are responsible both for pain that is sometimes very disabling, but also for significant functional disorders due to their location. Different methods may be used to treat these lesions. The current challenge is to use less and less invasive techniques such as radio-guided cementoplasty to be able to treat all types of people, especially the most fragile. Among the elderly, the prevalence of these bone pathologies continues to increase due to the aging of the population and the improvement of diagnostic means.
- Objectives: To assess whether the implementation of pre-procedural consultations and the use of explanatory audiovisual tools prior to performing Vascular and Interventional Radiology procedures improve the understanding of interventions by patients, improve satisfaction with the information provided and reduce anxiety experienced by the procedure. - Methods: We will conduct a two-arm randomized clinical trial that will include patients undergoing Vascular and Interventional Radiology procedures. After consent to participation by signing the informed consent, participants will be randomly assigned to the control group (patients to whom the information about the procedure is provided by the requesting physician) and to the experimental group (patients who, in addition to being informed by the requesting physicians, are attended by interventional radiologists in consultation after previously viewing explanatory videos of the interventions). Multi-choice questionnaires will be used to assess understanding and knowledge of the interventions and validated scales to measure satisfaction with the information provided and anxiety experienced. Knowledge and understanding of the intervention, satisfaction with the information transmitted and the method of transmission, as well as anxiety related to the intervention will be compared between the control group and the experimental group. The Student's t-test and the Mann-Whitney test will be used for the comparison of quantitative variables and the chi-square test and Fisher's exact test for the comparison of qualitative variables. Regression analysis will be used to evaluate associations between variables. - Expected results: To demonstrate that the implementation of pre-procedural consultations attended by interventional radiologists and the use of educational audiovisual tools prior to performing Vascular and Interventional Radiology procedures improve the understanding of interventions by patients, their satisfaction with the information provided and reduces the anxiety experienced for the procedure. - Potential impact: It is the first clinical trial that analyzes the usefulness of pre-procedural consultations and audiovisual tools in Vascular and Interventional Radiology, so its results will be very interesting to help standardize clinical practice in Vascular and Interventional Radiology.
In oncology, therapeutic progress has allowed a significant increase in life-expectancy: a growing number of cancer survivors live to more advanced metastatic stages. Consequently, the prevalence of secondary bone lesions is increasing, which are frequent and disabling. They are responsible for pain and a high risk of pathological fractures. The average prevalence of pain in cancer represents 53% for all stages combined and 64% for metastatic stages. Analgesics, radiotherapy and surgery are widely used in this context, but are not without side effects. Cementoplasty is an interventional radiology procedure that has improved the palliative management of bone lesions. It consists of a percutaneous injection of polymethylmethacrylate-based cement, whose physical and chemical properties provide resistance to compressive stress during weight-bearing activities. However, one of the main disadvantages of cement is its low resistance to torsional stress, as evidenced notably in vitro tests. Thus, cementoplasty alone is very effective at the spinal level (compressive forces) to reduce pain and risk of fracture, but much less effective at the level of other bones that are subjected to torsional stresses, notably the pelvis and femur (40% fracture rate at one year after cementoplasty alone of femoral metastasis). Fixation using a combination of metal screws and cement provides resistance to torsional and compressive stress. In addition, it has been shown that there is a significant risk of secondary screw displacement if screws are not combined with cement in secondary bone lesions. Combination of percutaneous screw fixation and cementoplasty is a mini-invasive procedure which allows limiting complications and the duration of treatment: early standing up, almost no blood loss, reduced risk of venous thromboembolism (VTE), rapid healing.
During major surgery, it is recommended to monitor invasive arterial blood pressure and cardiac output (CO) during hemodynamic interventions (fluid challenge or vasopressors). Esophageal Doppler is currently considered as the reference method for monitoring cardiac output in the operating room. The PRAM method (pressure recording analytical method) with the MostCareUp monitor (Vytech, Padova, Italy) and the LTIA method (long time interval analysis) allow cardiac output estimation derived from non-calibrated arterial pressure waveform analysis. Few studies have looked at relative changes in cardiac output during hemodynamic intervention with these two methods. The aim of this study is to compare the relative changes in cardiac output during hemodynamic interventions as measured using PRAM and LTIA methods, compared to esophageal Doppler.
Arterial hypotension during general anesthesia remains a factor of poor outcomes, increases the risk of myocardial infarction, acute kidney injury and 1-year mortality. Furthermore, arterial hypotension may also decrease cerebral perfusion contributing to worsen neurological outcome. It seems necessary to monitor cerebral perfusion during anesthesia and to define individual dynamic targets of blood pressure. The goal of this study is to evaluate cerebral perfusion change in adult patients with or without cardiovascular risk factors during a standardized propofol-remifentanil anesthesia induction. Cerebral perfusion will be evaluated and compared by simultaneous measurements of cerebral blood flow, cerebral oxygen saturation and neurological function with use of transcranial Doppler (TCD), Near infrared spectroscopy (NIRS) and the Bispectral index (BIS) monitoring, respectively. Those measurements will be also repeated during and after treatment of arterial hypotension episodes in both groups.