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Ultrasound guided catheter

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https://www.readbyqxmd.com/read/28739473/a-defined-protocol-to-resolving-cannulation-failure-during-endovenous-ablation-procedures
#1
Scarlett Hao, Samantha Cox, Thomas S Monahan, Tanya Flohr, Rajabrata Sarkar
During endovenous ablation for the treatment of insufficient veins, failure to cannulate the entirety of the refluxing vein with the treatment catheter prevents technically successful ablation. In this technique report, we describe a defined protocol to overcome cannulation failure of axial veins for endovenous ablation. This protocol utilizes commonly available adjunctive techniques including ultrasound-guided digital compression, the use of a guide wire, the use of a guide catheter, and placement of a second puncture site in a step-wise fashion to overcome varying degrees of tortuosity or obstruction...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28734927/4-dimensionally-guided-3-dimensional-color-doppler-ultrasonography-quantifies-carotid-artery-stenosis-with-high-reproducibility-and-accuracy
#2
Roland Richard Macharzina, Sascha Kocher, Steven R Messé, Thomas Rutkowski, Fabian Hoffmann, Matthias Vogt, Werner Vach, Nian Fan, Aljoscha Rastan, Franz-Josef Neumann, Thomas Zeller
OBJECTIVES: The purpose was to analyze the agreement and binary accuracy of the degree of internal carotid artery stenosis (ICAS) as determined by 4-dimensionally (4D) real-time gray-scale guided 3-dimensional (3D) color-Doppler ultrasonography (3DC-US) (4D/3DC-US) compared with catheter angiography (CA) and duplex ultrasonography (DUS). This study hypothesized that 4D/3DC-US is noninferior to CA and DUS in grading ICAS in selected patients. BACKGROUND: Clinical stratification in patients with ICAS largely depends on a patient's symptomatic status and the degree of stenosis...
July 13, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28732390/a-novel-hitch-and-ride-deep-biliary-cannulation-method-during-rendezvous-endoscopic-ultrasound-guided-ercp-technique
#3
Yousuke Nakai, Hiroyuki Isayama, Saburo Matsubara, Hirofumi Kogure, Suguru Mizuno, Tsuyoshi Hamada, Naminatsu Takahara, Tomoka Nakamura, Tatsuya Sato, Tsuyoshi Takeda, Ryunosuke Hakuta, Kazunaga Ishigaki, Kei Saito, Minoru Tada, Kazuhiko Koike
Background and study aim Endoscopic ultrasound-guided rendezvous (EUS-RV) is increasingly reported as a treatment option after failed endoscopic retrograde cholangiopancreatography. We developed a novel "hitch-and-ride" catheter for biliary cannulation to reduce the risk of guidewire loss during EUS-RV. Patients and methods We retrospectively evaluated safety and technical success of EUS-RV between June 2011 and May 2016. Biliary cannulation during EUS-RV using three methods - over-the-wire, along-the-wire, and hitch-and-ride - were compared...
July 21, 2017: Endoscopy
https://www.readbyqxmd.com/read/28721530/-imaging-representation-of-the-aorta
#4
REVIEW
C Reeps, S Schellong, R T Hoffmann
Depending on the type and acuteness, diseases of the aorta can be imaged by a variety of techniques. Modalities and quality of imaging have developed rapidly in recent years. In combination with the clinical assessment of patients, the results obtained by imaging determine the further management. They not only establish the underlying diagnosis but provide the information essential for indications, planning and reassessment of therapy, as well as for evaluation of the clinical course and surveillance. Whereas conventional catheter-guided angiography and intravascular ultrasound are only used in exceptional cases and then in conjunction with interventional therapy, cross-sectional imaging modalities, such as contrast-enhanced computed tomography (CT) angiography and magnetic resonance imaging (MRI) are nowadays the mainstay of diagnostics...
July 18, 2017: Der Internist
https://www.readbyqxmd.com/read/28721284/performing-easy-prone-punction
#5
REVIEW
Ramón Cansino, Alejandra Portilla, Juan Gómez Rivas
INTRODUCTION: Percutaneous renal surgery has been considered one of the most important advances in urology. There are several possibilities to perform a kidney puncture such as using fluoroscopy, ultrasound or both. The aim of this article is to describe our puncture technique. MATERIAL AND METHODS: Correct puncture is one of the most critical and challenging steps during percutaneous surgery. Bull's eye technique and other similar techniques supported by fluoroscopy try to make triangulations and provide different views...
June 30, 2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/28715967/hyperthermia-enhanced-targeted-drug-delivery-using-magnetic-resonance-guided-focussed-ultrasound-a-pre-clinical-study-in-a-genetic-model-of-pancreatic-cancer
#6
Navid Farr, Yak-Nam Wang, Samantha D'Andrea, Frank Starr, Ari Partanen, Kayla M Gravelle, Jeannine S McCune, Linda J Risler, Stella G Whang, Amy Chang, Sunil R Hingorani, Donghoon Lee, Joo Ha Hwang
PURPOSE: The lack of effective treatment options for pancreatic cancer has led to a 5-year survival rate of just 8%. Here, we evaluate the ability to enhance targeted drug delivery using mild hyperthermia in combination with the systemic administration of a low-temperature sensitive liposomal formulation of doxorubicin (LTSL-Dox) using a relevant model for pancreas cancer. MATERIALS AND METHODS: Experiments were performed in a genetically engineered mouse model of pancreatic cancer (KPC mice: LSL-Kras(G12D/+); LSL-Trp53(R172H/+); Pdx-1-Cre)...
July 17, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28710605/current-clinical-applications-of-coronary-optical-coherence-tomography
#7
REVIEW
Teruyoshi Kume, Shiro Uemura
Optical coherence tomography (OCT) is an intra-coronary diagnostic technique that provides detailed imagings of blood vessels in the current cardiac catheterization laboratory. The higher resolution of OCT often provides superior delineation of each structure compared with intravascular ultrasound (IVUS), and it can reliably visualize the microstructure of normal and diseased arteries. The capabilities of OCT are well suited for the identification of calcified plaque and neointima formation after stent implantation...
July 14, 2017: Cardiovascular Intervention and Therapeutics
https://www.readbyqxmd.com/read/28688963/continuous-interscalene-brachial-plexus-blockade-is-associated-with-reduced-length-of-stay-after-shoulder-arthroplasty
#8
Peter N Chalmers, Dane Salazar, Mitchell E Fingerman, Jay D Keener, Aaron Chamberlain
BACKGROUND: Catheter-delivered continuous interscaleneanesthesia has demonstrated improved pain control in randomized clinical trials.The purpose of this study is to determine whether the introduction of continuous catheteranesthesia was associated with a change in length of stay (LOS), readmission, rates of discharge home without home health or nursing services, or opioid administration. We hypothesized that the introduction of continuous catheter anesthesia would be associated with a decrease in LOS, readmission, non-home discharge, and opioid administration...
July 5, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28687699/a-rare-case-of-malposition-of-central-venous-catheter-detected-by-ultrasonography-guided-saline-flush-test
#9
Niraj Kumar, Ashutosh Kaushal, Kapil Dev Soni, Gaurav Singh Tomar
Central venous catheter (CVC) insertion is associated with many potential complications; malposition of the catheter is one of them. A chest X-ray is routinely done to detect the malposition of catheter, but sometimes it has been seen that X-ray is time-consuming and its accuracy is also low for determining the exact position of the catheter tip. In our case, an ultrasonography (USG)-guided CVC was placed into the right internal jugular vein of the patient. As there was no ECG change obtained during insertion of guidewire and catheter, malposition was suspected, which was easily detected by a novel USG-guided saline flush test...
July 6, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28685812/simulation-based-training-program-with-deliberate-practice-for-ultrasound-guided-jugular-central-venous-catheter-placement
#10
M A Corvetto, J C Pedemonte, D Varas, C Fuentes, F R Altermatt
BACKGROUND: Current evidence supports the utility of simulation training for bedside procedures such as ultrasound-guided jugular central venous catheter (CVC) insertion. However, a standardized methodology to teach procedural skills has not been determined yet. The aim of this study was to evaluate the effectiveness of a simulation-based training program for improving novice technical performance during ultrasound-guided internal jugular CVC placement. METHODS: Postgraduate year 1 (PGY-1) residents from anesthesiology, emergency medicine, cardiology, ICU, and nephrology specialties were trained in four deliberate practice sessions...
July 6, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28681224/percutaneous-image-guided-pancreatic-duct-drainage-technique-results-and-expected-benefits
#11
M Mizandari, T Azrumelashvili, J Kumar, N Habib
PURPOSE: The aim of this study is to provide a technical detail and feasibility of percutaneous image-guided pancreatic duct (PD) drainage and to discuss its subtleties in a series of patients with obstructed PD. MATERIALS AND METHODS: Thirty patients presenting with PD obstruction from pancreatic head tumour or pancreatitis were subjected to percutaneous image-guided PD drainage under a guidance of ultrasound or computed tomography. Following the successful puncture of PD, a locking loop drainage catheter was placed using conventional guidewire techniques under real-time fluoroscopy guidance...
July 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28675950/endovascular-treatment-of-dialysis-access-induced-hand-ischemia-using-a-flared-stent-graft
#12
Chien Yi M Png, William E Beckerman, Peter L Faries, David J Finlay
PURPOSE: To report an investigation of a purely endovascular procedure to address access-induced hand ischemia in dialysis patients. CASE REPORT: Two dialysis patients presented with stage III steal syndrome consisting of severe pain and numbness in their fingers. Preoperative fistulograms distal to the anastomosis showed alternating antegrade and retrograde flow. Under ultrasound guidance, the fistula was accessed and a 4-F micropuncture sheath placed. An angled guidewire was then advanced proximally into the brachial artery...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28665464/transitioning-from-anatomic-landmarks-to-ultrasound-guided-central-venous-catheterizations-guidelines-applied-to-clinical-practice
#13
Rodrigo Oom, Rui Casaca, Rita Barroca, Sara Carvalhal, Catarina Santos, Nuno Abecasis
INTRODUCTION: Centrally inserted central catheter (CICC) insertion is a commonly performed procedure that may give rise to different complications. Despite the suggestion of guidelines to use ultrasound guidance (USG) for vascular access, not all centers use it systematically. The aim of this study is to illustrate the experience with ultrasound in CICC placement at a high-volume oncological center, in a country where the landmark technique is standard. METHODS: Retrospective analysis of a prospective database was performed on CICC placement under USG in the Central Venous Catheter Unit of Instituto Português de Oncologia de Lisboa Francisco Gentil, from 2012 to 2015...
July 14, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28642091/a-see-and-treat-office-procedure-for-retained-products-of-conception-removal-after-normal-vaginal-delivery-using-manual-vacuum-aspiration-preliminary-efficacy-and-reproductive-outcomes
#14
Karavani Gilad, Bahar Raz, Herzberg Shmuel, Yanai Nili
STUDY OBJECTIVES: To compare efficacy and reproductive outcomes of an ultrasound guided manual vacuum aspiration (MVA) procedure to the widely accepted operative hysteroscopy (OH) procedure in removal of retained products of conception (RPOC) after normal vaginal delivery. DESIGN: Retrospective cohort study (Canadian Task Force classification II-2) SETTING: University-affiliated tertiary medical center PATIENTS: Eighty-six patients after normal vaginal delivery diagnosed with RPOC from 2005 through 2015...
June 19, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28641968/femoral-nerve-catheters-improve-home-disposition-and-pain-in-hip-fracture-patients-treated-with-total-hip-arthroplasty
#15
Diren Arsoy, James I Huddleston, Derek F Amanatullah, Nicholas J Giori, William J Maloney, Stuart B Goodman
BACKGROUND: Opioids have been the mainstay of treatment in the physiologically young geriatric hip fracture patient undergoing total hip arthroplasty (THA). However opioid-related side effects increase morbidity. Regional anesthesia may provide better analgesia, while decreasing opioid-related side effects. The goal of this study was to examine the effect of perioperative continuous femoral nerve blockade with regards to pain scores, opioid-related side effects and posthospital disposition in hip fracture patients undergoing THA...
June 2, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28631355/quantitative-risk-assessment-to-guide-the-treatment-of-cesarean-scar-pregnancy
#16
Qingxian Fang, Li Sun, Yunhui Tang, Cuifeng Qian, Xiaoying Yao
OBJECTIVE: To develop a risk-factor scoring system for the prediction of bleeding during ultrasound-guided dilation and curettage (D&C) for cesarean scar pregnancy (CSP). METHODS: The retrospective study included patients with a CSP of 31-67 days who underwent transabdominal ultrasound-guided D&C in 2010-2014. Binary logistic regression analysis was used to identify risk factors for the need of Foley catheter hemostasis. The predictive accuracy of a risk-scoring system based on significant factors was evaluated by receiver operating curve analysis...
June 20, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28627724/comparative-echogenicity-of-an-epidural-catheter-and-2-new-catheters-designed-for-ultrasound-guided-continuous-peripheral-nerve-blocks
#17
Daniel M Moy, T Edward Kim, T Kyle Harrison, Jody C Leng, Brendan Carvalho, Steven K Howard, Cynthia Shum, Alex Kou, Edward R Mariano
Visualization of the catheter during ultrasound-guided continuous nerve block performance may be difficult but is an essential skill for regional anesthesiologists. The objective of this in vitro study was to evaluate 2 newer catheters designed for enhanced echogenicity and compare them to a widely used catheter not purposely designed for ultrasound guidance. Outcomes were the numbers of first-place rankings among all 3 catheters and scores on individual echogenicity criteria as assessed by 2 blinded reviewers...
June 19, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28623986/double-prepuncture-as-a-valuable-adjunctive-technique-for-complex-endovenous-ablation
#18
Scarlett Hao, Samantha Cox, Thomas S Monahan, Rajabrata Sarkar
OBJECTIVE: The objective of this study was to characterize the technique and to report the results of double prepuncture used during complex radiofrequency ablation (RFA) in cases of treating multiple incompetent veins or encountering focal obstruction to catheter advancement. METHODS: A double prepuncture technique was applied in patients requiring endovascular ablation of multiple veins and patients with great saphenous vein cannulation failure. We treated 13 limbs in 12 patients during a 24-month period with RFA in which the double prepuncture technique was used...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28616236/effect-of-applied-energy-in-renal-sympathetic-denervation-with-magnetic-resonance-guided-focused-ultrasound-in-a-porcine-model
#19
Jill Shea, Joshua de Bever, Eugene Kholmovski, Hannah Beal, J Rock Hadley, Emilee Minalga, Mohamed E Salama, Nassir F Marrouche, Allison Payne
BACKGROUND: Past catheter-based and focused ultrasound renal denervation studies have indicated that procedure efficacy is related to the number of ablations performed or the amount of energy used for the ablation. This study extends those prior results and investigates energy level effects on the efficacy of MR guided focused ultrasound renal denervation performed in a porcine model. METHODS: Twenty-four normotensive pigs underwent unilateral denervation at three intensity levels...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/28614131/importance-of-catheter-length-for-ultrasound-guided-cannulation-of-peripheral-veins
#20
Daniel M Moy, Worasak Keeyapaj
No abstract text is available yet for this article.
July 2017: Anesthesia and Analgesia
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