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Showing 1-20 of 36 trials
NCT06890312
While the reduced hemorrhagic risk of radial access for percutaneous coronary intervention compared to femoral access is well-established, its main complication remains radial artery occlusion, which can occur in up to 30% of patients. Anticoagulation is the primary preventive measure recommended in clinical practice to reduce the risk of this complication, typically involving heparin injection during the procedure in most centers. However, data on the effect of the timing of heparin injection are limited. The investigators hypothesize that injection of heparin before sheath insertion may reduce the rate of radial artery occlusion compared with injection after sheath insertion.
NCT07400627
Radial artery cannulation is a routine procedure for invasive hemodynamic monitoring for patients undergoing cardiovascular surgery patients. Although ultrasound (USG) guidance is known to improve success rates, there is limited data comparing the efficacy of the 'Direct' versus 'Seldinger' techniques specifically in patients with anticipated difficult radial access. This study aims to compare the effectiveness of USG-guided Direct cannulation and USG-guided Seldinger techniques in adult patients with anticipated difficult radial arterial cannulation.
NCT07248683
This study aims to investigate medical students' mastery of radial artery puncture and catheterization skills guided by the midline on ultrasound when using scenario simulation combined with intermittent training, and to compare this approach with traditional teaching methods.
NCT01189188
The investigators aim to determine if ultrasound guidance results in improved technique when drawing blood via a radial artery puncture.
NCT05915234
Low-intervention clinical trial. The thermal and hemodynamic effects of different cryotherapy devices are evaluated. This study is included in the doctoral thesis of the principal investigator. Investigators: Principal Investigator: Julio Alberto Mateos Arroyo (RN, MSc, PhD student) Directors: Ignacio Zaragoza García (RN, PhD), Ismael Ortuño Soriano (RN, PhD), Paloma Posada Moreno (PhD). Setting: Faculty of Nursing, Physiotherapy and Podiatry of the Universidad Complutense de Madrid. The three interventions to be evaluated are: * Applying crushed ice. * Apply frozen peas. * Apply comparator. Hypothesis: There are differences in the reduction of temperature, dimensions of the internal lumen of the radial artery and blood flow inside it depending on the different modalities of cryotherapy (crushed ice or bag of frozen peas) applied in the anatomical area of the wrist, point of arterial puncture for blood gas analysis. Main objective: To analyze the effect of 3 cryotherapy devices on the radial artery area. Secondary objectives * To analyze the thermal behavior of the superficial tissue under study according to the cryotherapy device used. * To analyze the differences in the radial artery caliber before and after the application of cold in the different experimental modalities under study. * To analyze the differences in radial artery blood flow before and after the application of cold in the different experimental modalities under study. * To identify the safety pattern of the use of the different cryotherapy devices (adverse events). Design: Randomized controlled clinical trial. This is a crossover clinical trial in which all participants will receive all interventions and will be randomized in the order in which they receive them. Population: Adults with a good general state of health, who specifically do not have factors that could affect their thermoregulation or vascular pathologies. Main variables: * Skin surface temperature. * Radial artery size. * Radial artery blood flow.
NCT07087522
This randomized, double-blind, controlled trial aims to evaluate the effect of preprocedural hand exercise using a stress ball on the incidence of radial artery spasm and other vascular complications in patients undergoing elective coronary angiography via the transradial approach. A total of 400 adult patients scheduled for elective diagnostic or interventional coronary procedures will be randomly assigned to either an intervention group (preprocedural stress ball exercise) or a control group (standard care). The intervention group will perform hand exercises with a soft stress ball for 5 minutes, three times daily, for three consecutive days prior to the procedure. The primary outcomes are the incidence of radial artery spasm during the procedure and the overall rate of radial artery complications. Secondary outcomes include patient-reported pain score (visual analog scale) during the procedure and the incidence of radial artery occlusion at 7 days, assessed by Doppler ultrasonography. This study aims to determine whether this simple, low-cost strategy can reduce radial artery-related complications and improve patient comfort during transradial coronary procedures.
NCT06975566
The present study aims to investigate hemodynamic changes in radial and ulnar artery blood flow following radial artery cannulation performed in elective surgical cases under operating room conditions using Doppler ultrasonography. Additionally, it aims to evaluate the long-term impact of this procedure on vascular flow parameters and fine motor function.
NCT06386718
Ultrasound measurements of the ulnar artery and radial artery at different angles are obtained and compared to determine the optimal diameters for possible arterial cannulation in pediatric patients.
NCT04709341
In the study group, the TR-Band will be in left in place for 15 minutes before it is gradually deflated by 25% at 15 minute intervals. In the standard of care group, the TR-Band is left in place for 60 minutes before it is gradually deflated by 25% at 15 minute intervals. The aim of the study is to reduce the time the device is in place while minimizing potential complications.
NCT04310995
The Pilot study will be a single-center, randomized, open-label, active-controlled trial. After CABG surgery using Radial Artery Grafts (RA-CABG) and signing the informed consent, all patients will be screened according to the inclusion and exclusion criteria. Estimated 150 patients will be enrolled and randomized by ratio 1:1:1 to receive either Nicorandil (5mg tid po) or Diltiazem (180mg qd po) or Isosorbide Mononitrate (50mg qd po). Follow-up visits will be conducted at Week 1, 4, 12, and 24 after surgery. The last evaluation of study endpoints and other adverse events will be at Week 24. The pilot study is designed to explore the angiography outcomes of grafts and cardiovascular outcomes of patients, as well as safety outcomes among different anti-spastic regimens after RA-CABG.
NCT06424145
Objective: To investigate the effect of lidocaine injection location on the success rate of ultrasound-guided radial artery catheterization in a single-center, randomized, controlled clinical trial.
NCT04857385
RAPHE is an open label randomized clinical trial to assess physical, biological and chemical methods of radial artery puncture hemostasis following coronary catheterization. A total of 600 subjects will be randomized in a 1:1:1 fashion to either the StatSeal, Axiostat or TR Band hemostasis devices. Follow-up of the subject will take place 60 days after the index procedure.
NCT05511675
According to the World Health Organization data, approximately 17.9 million people die every year due to heart disease. 85% of these deaths are due to heart attack and blocked blood vessels. The Turkish Statistical Institute reports that circulatory system diseases took the first place among the causes of death with 38.4%, while ischemic heart diseases constituted 39.7% of these deaths in 2018. Transradial angiography is used for the purpose of scanning and treatment of coronary arteries both in Turkey and in other countries of the world. Aim: After transradial angiography, Terumo (TR) band is used as a common device which is provides pneumatical hemostasis. This study aims to reduce usage time of the TR band, a decrease of hematoma formation and a reduction in the level of extremities pain experienced as a result of transradial angiography, thanks to using the TR band together with cold application.
NCT05982366
The distal transradial approach (dTRA) via the anatomical snuffbox is hypothesized to be more beneficial than the conventional transradial access (cTRA) in patients undergoing coronary procedures. This prospective single-center randomized trial was designed to investigate the safety, efficacy, and various ultrasound parameters of dTRA.
NCT05735132
This clinical trial aims to compare the pain scores and cannulation success rates of conventional, bar-shaped, and V-shaped local infiltration anesthesia in participants' radial artery cannulation. The main questions it aims to answer are: * Are bar-shaped and V-shaped more successful than the conventional block in radial artery cannulation? * Are bar-shaped and V-shaped less painful than the conventional block in radial artery cannulation? Participants will describe their pain score during their radial artery cannulation. Researchers will compare the pain scores and cannulation success rates in bar-shaped, V-shaped, and conventional line blocking to see if bar-shaped and V-shaped blocking is better choices than conventional line blocking.
NCT05634642
Cardiovascular intervention via distal radial artery (DRA) approach has become more and more extensive. However, the DRA is smaller than conventional radial artery (CRA). Assessing the size of the DRA before vascular intervention is extremely important to select suitable patients. There are still few large-sample studies to evaluate the size of DRA and its influencing factors in the Chinese population.
NCT04801901
Prospective randomized non-blinded study to determine degree of vessel trauma and adverse remodeling of the proximal forearm radial artery following distal radial artery access (dTRA) for cardiac catheterization compared to standard forearm transradial access (fTRA).
NCT02324764
The objective of this study is to determine the rate of radial artery occlusion and vascular access site complications following transradial angiogram using a new Terumo (Tokyo, Japan) Glidesheath Slender, in comparison with the currently used 6 French (6 Fr.) radial sheath.
NCT04617106
Radial Artery cannulation using conventional palpation vs USG guided Dynamic needle tip positioning (DNTP) method.
NCT04861883
Pregnancy is a very complex and coordinated physiological process.The physiological changes are closely related to the physiological function of Zang-fu organs, which leads to the change of slippery pulse. By touching different levels of depth and the part of the radial artery, it is found that the formation mechanism of pulse information, especially unsmooth pulse, is similar to the principle of sonar emission and reception: the heart is equivalent to the transmitting device of sonar wave. Each contraction of the heart produces a cluster of powerful sound waves, which are rapidly transmitted to the whole body along the arterial wall and the blood in it as a medium. More than 90% of the arterial blood flow of normal organs and tissues is a steady laminar flow, which does not produce turbulence, so there is abnormal vibration when a certain organ and tissue has pathological changes. The arterial blood flow is squeezed and deformed which causing turbulence and abnormal vibrations, which are fused with a larger cluster of sound waves transmitted by the heart and then transmitted to the whole body. The investigators can feel this kind of sound waves which combine abnormal vibration waves by touching different levels of arteries close to the body surface, including the radial artery. At the same time, Professor Lucheng Song's team has conducted in-depth research on the characteristic unsmooth pulse of stable coronary heart disease, liver cirrhosis, gastritis and other diseases.During pregnancy, due to the significant increase in blood flow and maternal changes , the shape of sound waves transmitted to the radial artery in the artery will be changed. Professor Lucheng Song found in clinical practice that the pregnant pulse will have different sensations of smoothness and penetration in different parts of the finger, by touching different levels of depth and the part of the radial artery. It was found that the pulse condition of normal pregnant women in the middle and third trimester of pregnancy was different from that of normal non-pregnant women in different level and part of radial artery.This study will verify the efficacy of pulse diagnosis of traditional Chinese medicine in the diagnosis of pregnancy and lay a foundation for the diagnosis of abnormal pregnancy.