View clinical trials related to Catheterization.
Filter by:For performing subclavian venous catheterization, two approaches (supraclavicular and infraclavicular) have been used successfully in various clinical practice. However, there remains controversy concerning which approach is safer and causes less complications during ultrasonography-guided subclavian venous catheterization. In this context, the investigators sought to compare supraclavicular approach with infraclavicular approach in terms of post-procedural complications during ultrasonography-guided subclavian venous catheterization.
This is a prospective randomized comparative multicentric study. Briefly, we will analyze the technical success, performance and clinical outcomes of early versus delayed double-guidewire technique (DGT) in difficult biliary cannulation.
Investigators aimed to explore the feasibility of smart glasses connected to a wireless ultrasound transducer for the peripheral venous access. Residents who have basic skills of ultrasound guided procedure participate in the simulation. Each participant plays the following two roles for ultrasound guided peripheral venous access; ultrasound guided peripheral venous access with and without wearing smart glasses. The order of performing two roles is determined by a randomized process and the gap between two roles are five days. The primary outcome is the time of successful blood aspiration, and secondary outcomes are first time success rate, the number of skin puncture, the number of needle redirection, the number of head movement, and subjective difficulty.
When performing vascular cannulation such as radial artery cannulation, ultrasonography (US) helps proper positioning of the tip of needle in the vascular lumen, which facilitating cannulation of the catheter and successful pressure monitoring. Conventionally, short-axis out-of-plane (SAX) and long-axis in-plane (LAX) views are commonly used method to image the target vessel during cannulation under US guidance. Dynamic needle tip positioning (DNTP) method is newly introduced by one group of investigators who conducted a related study using vascular phantom model. In DNTP, SAX is used, and additionally, when the needle tip is imaged in the screen as an echogenic point, the practitioner (a) proximally moves the US probe a bit, and then (b) the needle is advanced until the needle tip reappears in the screen. In this manner, the practitioner repeats (a) and (b) until the needle is inserted 1 cm into the lumen of vessel, and then the catheter is inserted to finish the procedure. DNTP has not been compared to conventional imaging methods. The aim of this trial is to see the effect of DNTP on success rate of the radial artery cannulation at the first attempt, compared to the conventional LAX.
In this study, the investigators will investigate how patients' radial artery diameters change according to sex, age, height, weight and body mass index by measuring radial artery diameter using ultrasonography. The correlation of Allen test with doppler ultrasonography will also be evaluated.
Central venous catheterization is widely used for various purposes during surgery. For central venous catheterization, subclavian vein is selected because of the relatively low risk of infection, long-term patency and low patient discomfort. The cross - sectional area of the subclavian vein is an important factor to increase success rate. Several studies have reported that the Trendelenburg position increases the cross-sectional area of the subclavian vein, and the lateral tilt position can change the cross-sectional area of the subclavian vein. However, the impact of lateral tilt position to the cross-sectional area of the subclavian vein is not clear. The ipsilateral position can increase the cross-sectional area of the subclavian vein, and the contralateral position can decrease the cross-sectional area by gravity. In the second stage of this study, the investigators would like to compare the success rate, the number of needle passage, time to complete subclavian vein catheterization in supine and ipsilateral tile position.
Central venous catheterization is widely used for various purposes during surgery. For central venous catheterization, subclavian vein is selected because of the relatively low risk of infection, long-term patency and low patient discomfort. The cross - sectional area of the subclavian vein is an important factor to increase success rate. Several studies have reported that the Trendelenburg position increases the cross-sectional area of the subclavian vein, and the lateral tilt position can change the cross-sectional area of the subclavian vein. However, the impact of lateral tilt position to the cross-sectional area of the subclavian vein is not clear. The ipsilateral position can increase the cross-sectional area of the subclavian vein, and the contralateral position can decrease the cross-sectional area by gravity. In the first stage of this study, we compare the cross-sectional area of subclavian vein using ultrasonography in supine, ipsilateral, and contralateral tilt position.
This interventional simple-blind,randomized trial has included 90 children of American Society of Anesthesiologist (ASA) physical status I or II aged between 1 to 12 years of either sex, scheduled for for outpatient minor surgery under general anesthesia. This study examined whether one should make iv attempts during the early induction period (at 60 seconds) or lately (90 or 120 s) and waiting until the child receives additional sevoflurane inhalation anesthesia.
Septi-PICC study aims at assessing incidence of Peripherally Inserted Central Catheter (PICC)-related infections among patients managed in the University Hospital of La Reunion for PICC setting.
To randomize 108 patients undergoing knee replacement surgery to catheter through needle or catheter over needle femoral nerve blocks, then monitor the catheters for leakage to see if there is a difference.