View clinical trials related to Arteriovenous Fistula.
Filter by:The cannulation of arteriovenous fistula is a painful procedure in hemodialysis patients. Previous studies have shown the effectiveness of virtual reality in reducing pain during needle-related procedures
This research was conducted as a randomized controlled experimental study aiming to determine the impact of virtual reality glasses used in the AVF process on the pain felt by patients and patient satisfaction.
This is a monocentric randomized prospective trial comparing 2 different endovascular strategies of intracranial arterial angioplasty in case of refractory intracranial arterial vasospastic stenosis : - chemical angioplasty - chemical and mechanical angioplasty
Non-pharmacological approaches applied in the prevention of invasive pain due to cannulation in patients treated with arteriovenous fistula and hemodialysis; It is also a cost-effective method that prevents the patient from feeling pain from the application. Breathing exercises are a method that can be easily applied before the cannulation procedure. Although it is seen that there are limited number of studies on the subject in the literature, it was observed that the duration of breathing exercise application was short (two weeks) in one study and the duration was not specified in the other.
A patient with an arteriovenous fistula (AVF) receiving chronic hemodialysis (HD) treatment is cannulated 312 times a year on average. The patients cannot comply with dialysis treatment and the quality of life is decreased by pain when the fistula cannot be accessed with a single attempt. Sharp pain depends on the tear in the skin, the tissue where the sensitive nerve ends receptive to pain are located, and it is particularly important during AVF puncture. Also, punctures are accompanied by haemorrhages and frequent loss of blood.
The aims of this study are to: - Determine the AVF (arteriovenous fistula) survival of patients submitted to MuST compared to those submitted to RL (rope-ladder). - Determine the AVF (arteriovenous fistula) complication rate of patients submitted to MuST compared to those submitted to RL (rope-ladder). - Analyze the intensity of pain perceived by the patient with each cannulation technique under study.
A prospective, multi-center, randomized (1:1) clinical study evaluating the FLEX Vessel Prep device plus percutaneous angioplasty (PTA) (study arm) vs PTA alone (control arm) for the treatment of obstructive lesions in the native arteriovenous dialysis fistulae.
Cerebral blood flow (CBF) is of paramount importance to human brain function, as the brain relies on a continuous blood supply to meet its energy needs. Blockage of a cerebral blood vessel during neurosurgery, even if transient and short-lived, may result in irreversible brain tissue damage (i.e. stroke) and loss of cortical function, if not identified quickly enough. Laser speckle contrast imaging (LSCI) has been demonstrated to provide the ability to visualize flow in vessels in real time and continuously without the need for contrast agents. In LSCI, the tissue of interest is illuminated with low power laser light at red or near infrared wavelengths and the light reflected from the tissue surface is imaged onto a camera. The resulting images are laser speckle patterns and a computer processes the images to produce speckle contrast images, which are images of the motion within the field of view (ie, blood flow). The purpose of this clinical investigation is to assess the usefulness and accuracy of LSCI compared to ICGA and/or FA during neurovascular surgery. LSCI videos will be recorded automatically intraoperatively in each patient before, during, and after ICGA and/or FA in the same surgical field of view to guarantee comparability of the methods.
To determine if cutting balloon angioplasty combined with DEB angioplasty provides a higher primary patency after treatment of recurrent stenoses compared with cutting balloon angioplasty or angioplasty using DEB alone in the venous outflow AVFs. For cutting balloon angioplasty in venous stenosis, the primary patency after 12 months is 55-60% (9,16) and in recurrent stenoses up to 48%(10). We hypothesise that DEB angioplasty after cutting balloon angioplasty leads to improved primary patency at 12 months.
Preoperative vascular mapping with echo-Doppler is acknowledged as indispensable to create an arteriovenous fistula for haemodialysis (AVF). The conditions for performing this examination are not always ideal (venous vasospasm in cool temperatures, variability of the volume status in the dialysis patient). On the other hand, the use of a loco-regional anaesthesia (LRA) results in the vasodilation of the limb thus rendering it possible to use the veins which were initially considered too small. The aim of this study is to assess the functionality of our AVF when ultrasound identification was used by the surgeon after the LRA. These results have been compared with those of the preceding year during which this identification was not implemented.