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Catheterization techniques

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https://www.readbyqxmd.com/read/28807449/non-invasive-intra-cardiac-pressure-measurements-using-subharmonic-aided-pressure-estimation-proof-of-concept-in-humans
#1
Jaydev K Dave, Sushmita V Kulkarni, Purva P Pangaonkar, Maria Stanczak, Maureen E McDonald, Ira S Cohen, Praveen Mehrotra, Michael P Savage, Paul Walinsky, Nicholas J Ruggiero, David L Fischman, David Ogilby, Carolyn VanWhy, Matthew Lombardi, Flemming Forsberg
This study evaluated the feasibility of employing non-invasive intra-cardiac pressure estimation using subharmonic signals from ultrasound contrast agents in humans. This institutional review board-approved proof-of-concept study included 15 consenting patients scheduled for left and right heart catheterization. During the catheterization procedure, Definity was infused intra-venously at 4-10 mL/min. Ultrasound scanning was performed with a Sonix RP using pulse inversion, three incident acoustic output levels and 2...
August 11, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28806996/improved-passive-catheter-tracking-with-positive-contrast-for-cmr-guided-cardiac-catheterization-using-partial-saturation-psat
#2
Mari Nieves Velasco Forte, Kuberan Pushparajah, Tobias Schaeffter, Israel Valverde Perez, Kawal Rhode, Bram Ruijsink, Mazen Alhrishy, Nicholas Byrne, Amedeo Chiribiri, Tevfik Ismail, Tarique Hussain, Reza Razavi, Sébastien Roujol
BACKGROUND: Cardiac catheterization is a common procedure in patients with congenital heart disease (CHD). Although cardiovascular magnetic resonance imaging (CMR) represents a promising alternative approach to fluoroscopy guidance, simultaneous high contrast visualization of catheter, soft tissue and the blood pool remains challenging. In this study, a novel passive tracking technique is proposed for enhanced positive contrast visualization of gadolinium-filled balloon catheters using partial saturation (pSAT) magnetization preparation...
August 15, 2017: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/28799706/outcome-after-transcatheter-occlusion-of-patent-ductus-arteriosus-in-infants-less-than-6-kg-a-national-study-from-united-kingdom-and-ireland
#3
Sok-Leng Kang, Salim Jivanji, Chetan Mehta, Andrew J Tometzki, Graham Derrick, Robert Yates, Sachin Khambadkone, Joseph de Giovanni, Oliver Stumper, Rami Dhillon, Vinay Bhole, Zdenek Slavik, Michael Rigby, Patrick Noonan, Ben Smith, Brodie Knight, Trevor Richens, Neil Wilson, Kevin Walsh, Adam James, John Thomson, Jamie Bentham, Nicholas Hayes, Sajid Nazir, Satish Adwani, Arjamand Shauq, Ram Ramaraj, Christopher Duke, Demetris Taliotis, Vikram Kudumula, San-Fui Yong, Gareth Morgan, Eric Rosenthal, Thomas Krasemann, Shakeel Qureshi, David Crossland, Tony Hermuzi, Robin P Martin
OBJECTIVES: This study aimed to report our national experience with transcatheter patent ductus arteriosus (PDA) occlusion in infants weighing <6 kg. BACKGROUND: The technique of transcatheter PDA closure has evolved in the past two decades and is increasingly used in smaller patients but data on safety and efficacy are limited. METHODS: Patients weighing < 6 kg in whom transcatheter PDA occlusion was attempted in 13 tertiary paediatric cardiology units in the United Kingdom and Ireland were retrospectively analyzed to review the outcome and complications...
August 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28798258/preserved-right-ventricular-integrity-in-a-new-telemetric-rat-model-of-severe-pulmonary-hypertension
#4
Catharina Schreiber, Magdalena S Eilenberg, Attila Kiss, Helga Bergmeister, Bruno K Podesser, Julia Mascherbauer, Diana Bonderman
Telemetric monitoring of hemodynamic parameters has become an established standard in experimental models of pulmonary arterial hypertension (PAH). To that purpose, a dedicated catheter is usually implanted through the right ventricular wall of study animals. Drawbacks of this standard technique are: obtained pressures are from the right ventricle and therefore only surrogates for pulmonary arterial pressures, and furthermore, right ventricular myocardium is always damaged to a certain degree. To overcome shortcomings of standard hemodynamic assessment, we modified an established rat model, where severe PAH is induced by left-sided pneumonectomy plus monocrotaline injection...
August 10, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28796429/comparison-of-time-to-obtain-intraosseous-versus-jugular-venous-catheterization-on-canine-cadavers
#5
Alison R Allukian, Amanda L Abelson, Jonathan Babyak, Elizabeth A Rozanski
OBJECTIVE: To compare the time required and the success rate of personnel with 4 different levels of experience to place a humeral intraosseous (IO) catheter versus a jugular venous catheter (IV) in cadaver dogs. DESIGN: Prospective study. SETTING: Veterinary university teaching hospital. INTERVENTIONS: Canine cadavers from recently euthanized dogs were obtained from the cadaver donation program between May and December 2014...
August 10, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28795677/-one-case-of-concurrent-hemorrhage-after-pancreatic-islet-transplantation-by-percutaneous-transhepatic-portal-approach
#6
Boya Zhang, Guanghui Pei, Yamin Zhang, Zhiping Wang, Lianjiang Wang, Yan Xie, Jinshan Wang, Shusen Wang
The percutaneous transhepatic portal approach is the most commonly used technique for islet transplantation, largely owing to its safety and minimally invasive characteristic. Bleeding complications after islet transplantation are rare. A case of type 1 diabetes mellitus (T1DM) was treated in Tianjin First Center Hospital, who had a massive intra-abdominal hemorrhage after percutaneous transhepatic portal vein catheterization for islet transplantation. Through the review of the overall development of the case, we aim to improve the awareness of the complications of islet transplantation, to reduce the incidence of complications after percutaneous transhepatic portal vein transplantation, and to provide experience...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28780651/hysteropreservation-versus-hysterectomy-in-the-surgical-treatment-of-uterine-prolapse-systematic-review-and-meta-analysis
#7
REVIEW
Sofia Andrade de Oliveira, Marcelo C M Fonseca, Maria A T Bortolini, Manoel J B C Girão, Matheus T Roque, Rodrigo A Castro
INTRODUCTION AND HYPOTHESIS: The efficacy and safety of removing or preserving the uterus during reconstructive pelvic surgery is a matter of debate. METHODS: We performed a systematic review and meta-analysis of studies that compared hysteropreservation and hysterectomy in the management of uterine prolapse. PubMed, Medline, SciELO and LILACS databases were searched from inception until January 2017. We selected only randomized controlled trials and observational cohort prospective comparative studies...
August 5, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28780368/atlanto-occipital-catheterization-of-young-rats-for-long-term-drug-delivery-into-the-lumbar-subarachnoid-space-combined-with-in-vivo-testing-and-electrophysiology-in-situ
#8
Olga Kopach, Volodymyr Krotov, Nana Voitenko
BACKGROUND: Catheterization has been widely used in neuroscience and pain research for local drug delivery. Though different modifications were developed, the use of young animals for spinal catheterization remains limited because of a little success rate. A reliable technique is needed to catheterize young animals aimed for in vivo testing combined with spinal cord electrophysiology, often limited by animal age, to facilitate pain research. NEW METHODS: We describe intrathecal catheterization of young rats (3-week-old) through atlanto-occipical approach for long-lasting drug delivery into the lumbar subarachnoid space...
August 2, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28766859/transulnar-cardiac-catheterization-and-percutaneous-coronary-intervention-techniques-transradial-comparisons-anatomical-considerations-and-comprehensive-literature-review
#9
Subrata Kar
Ulnar arterial access for cardiac catheterization and intervention is an alternative approach compared with radial or femoral access. Ulnar access is infrequently performed since the radial artery is readily palpable and is commonly used worldwide to minimize vascular complications from femoral access. Nevertheless, ulnar access provides a suitable access site in patients who are poor candidates for femoral access, have pre-existing radial occlusion, radial artery hypoplasia or hyperplasia from prior radial artery procedures, radial stenosis, radial loops, radial tortuosity, small radial arteries, and/or have future need for radial graft for dialysis or coronary artery bypass graft...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28761030/comparison-of-the-trendelenburg-position-versus-upper-limb-tourniquet-on-internal-jugular-vein-diameter
#10
Pelin Karaaslan, Banu Vural Gokay, Muhammet Ahmet Karakaya, Kamil Darcin, Afak Durur Karakaya, Tugrul Ormeci, Emine Arzu Kose
BACKGROUND: Central venous cannulation is a necessary invasive procedure for fluid management, haemodynamic monitoring and vasoactive drug therapy. The right internal jugular vein (RIJV) is the preferred site. Enlargement of the jugular vein area facilitates catheterization and reduces complication rates. Common methods to enlarge the RIJV cross-sectional area are the Trendelenburg position and the Valsalva maneuver. OBJECTIVE: Compare the Trendelenburg position with upper-extremity venous return blockage using the tourniquet technique...
July 2017: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/28742287/quality-of-life-of-intermittent-urinary-catheterization-users-and-their-caregivers-a-scoping-review
#11
Laís Fumincelli, Alessandra Mazzo, José Carlos Amado Martins, Fernando Manuel Dias Henriques, Daniela Cardoso, Manuel Alves Rodrigues
AIMS: This study aimed to examine and map the scientific evidences regarding quality of life in neurogenic bladder patients and consequently their caregivers by means of a scoping review. DESIGN: This is a scoping review proposal of the Joanna Briggs Institute. METHODS: It was conducted to examine and map the scientific evidences about quality of life (QoL) in neurogenic bladder patients and their caregivers, to identify the meanings attributed to QoL and its relation with intermittent urinary catheterization...
August 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28734439/coronary-sinus-orifice-atresia-after-the-fontan-completion-unique-repair-technique
#12
Shinya Yokoyama, Takeo Yonekura, Noboru Nishiwaki, Shigeki Taniguchi
We report a successful unroofing of the coronary sinus via a unique technique. Our patient was diagnosed with single ventricle morphology. Pulmonary artery banding and bidirectional cavopulmonary shunt were performed at 1 and 6 months old, respectively. Ordinary univentricular repair strategy was performed; extracardiac total cavopulmonary connection was achieved at 18 months old. Catheterization performed 1 year after the Fontan procedure revealed the coronary sinus orifice atresia, diffuse coronary artery stenosis, and sinusoid formation of the coronary system...
August 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28733160/triamcinolone-injection-for-treatment-of-mitrofanoff-stomal-stenosis-optimizing-results-and-reducing-cost-of-care
#13
P P Reddy, A C Strine, T Reddy, P H Noh, W R DeFoor, E Minevich, C A Sheldon, B A VanderBrink
INTRODUCTION: Stomal stenosis is the most common complication after the creation of a continent catheterizable channel (CCC), but is challenging to treat. OBJECTIVE: To describe early experience with triamcinolone injection for the treatment of stomal stenosis. MATERIALS AND METHODS: A retrospective review was performed of patients who had undergone a triamcinolone injection (40 mg/ml) for the treatment of stomal stenosis at the present institution...
July 4, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28730857/controversies-in-complex-percutaneous-coronary-intervention-radial-versus-femoral
#14
Ian C Gilchrist, Stephen O Awuor, Rhian E Davies, Anene C Ukaigwe
Evolution in the technology used in the cardiac catheterization laboratory has permitted a migration from the femoral to radial artery access for many interventional procedures while concurrently improving outcomes. As a disruptive technology, transradial access has been associated with several controversies including a dichotomous relationship with femoral access. Areas covered: Several different patient subsets along with perceived technical challenges in interventional cardiology are reviewed with regard to the issue of access site...
July 21, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28729141/effects-of-transjugular-intrahepatic-portosystemic-shunt-tips-on-blood-volume-distribution-in-patients-with-cirrhosis
#15
Troels M Busk, Flemming Bendtsen, Jens H Henriksen, Stefan Fuglsang, Jens O Clemmesen, Fin S Larsen, Søren Møller
BACKGROUND: Cirrhosis is accompanied by portal hypertension with splanchnic and systemic arterial vasodilation, and central hypovolaemia. A transjugular intrahepatic portosystemic shunt (TIPS) alleviates portal hypertension, but also causes major haemodynamic changes. AIMS: To investigate effects of TIPS on regional blood volume distribution, and systemic haemodynamics. METHODS: Thirteen cirrhotic patients had their regional blood volume distribution determined with gamma-camera technique before and after TIPS...
June 27, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28721463/exstrophy-bladder-reconstruction-or-diversion-for-the-underprivileged
#16
REVIEW
Yogesh Kumar Sarin, Virender Sekhon
The surgical techniques for management of bladder exstrophy epispadias complex have evolved from staged reconstruction, complete primary repair to radical mobilization. Post-operative complications add to the multiplicity of surgical procedures at each step. The end results are variable with many achieving continence rates of 85-89% only after bladder augmentation and clean intermittent catheterization. The situation is further complicated in resource-poor settings, where illiteracy and poverty are the driving factors for choosing a single operative procedure for creation of low pressure reservoir aiming at upper tract preservation and good primary continence...
July 18, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28720740/-tentorial-dural-arteriovenous-fistula-successfully-treated-with-transvenous-embolization-using-a-double-catheterization-technique-through-venous-drainage-a-case-report
#17
Akira Yamakawa, Atsushi Fujita, Hirotomo Tanaka, Mitsuru Ikeda, Masashi Morikawa, Eiji Kohmura
BACKGROUND: Tentorial dural arteriovenous fistulas(dAVFs)are a rare clinical entity accounting for less than 10% of all intracranial dAVFs. Because these lesions are characterized by high hemorrhagic risk, aggressive treatment should be considered. Although the number of reported cases treated with endovascular transarterial embolization(TAE)using glue has been increasing, little is known about the transvenous approach. Here, we report the case of a patient with a tentorial dAVF who was successfully treated with transvenous embolization(TVE)through venous drainage using a double catheterization technique...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28718358/an-updated-method-for-the-jugular-catheterization-of-grower-pigs-for-repeated-blood-sampling-following-an-oral-glucose-tolerance-test
#18
Anton M Pluschke, Gregory S Simmons, Helen L Keates, Ranald D A Cameron, Dagong Zhang, John D Wright, Barbara A Williams
Jugular catheterization is a common procedure used under experimental conditions. However, there is considerable variation in the reported techniques, particularly for grower pigs (>40 kg and <60 kg) when larger volumes of blood per sample (>10 mL) are required. This paper provides a complete methodology including the use of current equipment and anaesthetic regimen for grower pigs. This surgical jugular catheterization method was carried out in 30 large white grower pigs. Firstly, the pigs were habituated to human handling for at least two weeks prior to surgery...
August 2017: Laboratory Animals
https://www.readbyqxmd.com/read/28710605/current-clinical-applications-of-coronary-optical-coherence-tomography
#19
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/28708034/ultrasound-guided-percutaneous-common-carotid-artery-access-in-piglets-for-intracoronary-stem-cell-infusion
#20
Jason H Anderson, Nathaniel W Taggart, Sarah L Edgerton, Susana Cantero Peral, Kimberly A Holst, Frank Cetta
In pigs, the deep location of the common carotid artery and overlying sternomastoideus muscle in the neck has led to the recommendation for a surgical cutdown for common carotid access, as opposed to minimally invasive techniques for vascular access. We sought to determine if direct percutaneous common carotid artery access in piglets is attainable. Seventeen piglets were anesthetized and intubated. Under two-dimensional and color flow Doppler ultrasound guidance, a 21 gauge needle was utilized to access the right common carotid artery...
January 1, 2017: Laboratory Animals
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