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https://www.readbyqxmd.com/read/28806996/improved-passive-catheter-tracking-with-positive-contrast-for-cmr-guided-cardiac-catheterization-using-partial-saturation-psat
#1
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/28797911/a-prospective-evaluation-of-radiation-free-direct-solitary-cholangioscopy-for-the-management-of-choledocholithiasis
#2
Monique T Barakat, Mohit Girotra, Abhishek Choudhary, Robert J Huang, Saurabh Sethi, Subhas Banerjee
BACKGROUND AND AIMS: Endoscopy has replaced many radiological studies for the GI tract. However, ERCP remains a hybrid endoscopic-fluoroscopic procedure, which limits its portable delivery, creates delays due to fluoroscopy room unavailability and exposes patients/providers to radiation. We evaluated fluoroscopy/radiation-free management of patients with non-complex choledocholithiasis using direct solitary cholangioscopy (DSC). METHODS: Patients underwent fluoroscopy-free biliary cannulation, sphincterotomy then cholangioscopy to establish location, number/size of stones and document distance from ampulla to bifurcation to guide balloon advancement...
August 7, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28766865/trapping-as-retrieval-technique-to-resolve-a-ruptured-and-entrapped-coronary-balloon-catheter
#3
Javier León Jiménez, Jessica Roa Garrido, Santiago Jesús Camacho Freire, José Francisco Díaz Fernández
A 69 year old male, with a previous percutaneous revascularization of the mid-circumflex with a bare metal stent in 2007 was admitted to our centre for unstable angina. The angiography showed a severely calcified coronary tree with a functionally severe plaque on the proximal left anterior descending artery (LAD) and a critical focal lesion on the proximal right coronary artery. After a high pressure predilation on the proximal LAD, the balloon ruptured causing a retrograde LAD-left main (LM) dissection that was rapidly sealed with three overlapping zotarolimus-eluting stents from medial LAD to LM...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28754806/impact-of-balloon-guide-catheter-on-technical-and-clinical-outcomes-a-systematic-review-and-meta-analysis
#4
Waleed Brinjikji, Robert M Starke, M Hassan Murad, David Fiorella, Vitor M Pereira, Mayank Goyal, David F Kallmes
BACKGROUND AND PURPOSE: Flow arrest with balloon guide catheters (BGCs) is becoming increasingly recognized as critical to optimizing patient outcomes for mechanical thrombectomy. We performed a systematic review and meta-analysis of the literature for studies that compared angiographic and clinical outcomes for patients who underwent mechanical thrombectomy with and without BGCs. MATERIALS AND METHODS: In April 2017 a literature search on BGC and mechanical thrombectomy for stroke was performed...
July 28, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28723841/military-civilian-partnership-in-device-innovation-development-commercialization-and-application-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-reboa
#5
Todd E Rasmussen, Jonathan L Eliason
Noncompressible torso hemorrhage (NCTH) and shock is a leading cause of trauma-related mortality and evidence suggests that survival from this injury pattern has not improved in decades. As such, innovating new approaches and devices, including technologies which can be used by providers within a short of time after severe injury, is a priority for the military. Guided by wartime observations, and through partnerships with civilian academia and private investment, the military has led an effort to define resuscitative endovascular balloon occlusion of the aorta (REBOA) and assess its potential to address this problem...
July 19, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28723284/balloon-guide-catheter-in-large-vessel-occlusion-stroke-therapy
#6
Thanh N Nguyen, Osama O Zaidat
No abstract text is available yet for this article.
August 2017: Radiology
https://www.readbyqxmd.com/read/28712895/parent-and-child-balloon-technique-for-navigating-guide-catheters-during-neurointerventions
#7
Tomotaka Ohshima, Kojiro Ishikawa, Shunsaku Goto, Taiki Yamamoto
BACKGROUND: and Purpose: The stabilization of a guide catheter is an important factor for performing successful neurointerventional procedures. We present our technique for navigating guide catheters using parent and child balloons. MATERIALS AND METHODS: In nine patients with severe atherosclerosis or anatomical variations such as a bovine arch, 8-9-F balloon-mounted guide catheters were navigated using balloon-attached guidewires. Both balloons were complementarily used for flow navigation and vessel fixation at the appropriate portions and times...
July 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28691137/effective-use-of-balloon-guide-catheters-in-reducing-incidence-of-mechanical-thrombectomy-related-distal-embolization
#8
Dong Hoon Lee, Jae Hoon Sung, Sang Uk Kim, Ho Jun Yi, Jae Taek Hong, Sang Won Lee
BACKGROUND AND PURPOSE: The clinical benefit of endovascular stroke therapy has been demonstrated in several prospective randomized trials. However, in a relevant percentage of patients, mechanical thrombectomy bears the risk of causing new infarction in initially unaffected vascular territories through thrombus fragmentation and migration of clot debris. The goal of this study was to evaluate the use of the balloon guide catheter (BGC) to effectively achieve flow arrest and thrombus aspiration during the intervention to avoid distal embolization...
July 9, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28681224/percutaneous-image-guided-pancreatic-duct-drainage-technique-results-and-expected-benefits
#9
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/28636165/a-feasibility-and-safety-study-of-intracoronary-hemodilution-during-primary-coronary-angioplasty-in-order-to-reduce-reperfusion-injury-in-myocardial-infarction
#10
Michael McGarvey, Omar Ali, M Bilal Iqbal, Charles Ilsley, Joyce Wong, Carlo Di Mario, Simon Redwood, Tiffany Patterson, Dudley J Pennell, Paula Rogers, Miles Dalby
OBJECTIVES: We designed a pilot study to evaluate safety and feasibility of an inexpensive and simple approach to intracoronary hemodilution during primary angioplasty (PPCI) to reduce reperfusion injury. INTRODUCTION: Early revascularization in acute myocardial infarction decreases infarct size and improves outcomes. However, abrupt restoration of coronary flow results in myocardial reperfusion injury and increased final infarct size. Dilution of coronary blood during revascularization may help reduce this damage...
June 21, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28598924/resuscitative-endovascular-balloon-occlusion-of-the-aorta-principles-initial-clinical-experience-and-considerations-for-the-anesthesiologist
#11
Srikanth Sridhar, Sam D Gumbert, Christopher Stephens, Laura J Moore, Evan G Pivalizza
Resuscitative endovascular balloon occlusion of the aorta (REBOA) is an endovascular technique that allows for temporary occlusion of the aorta in patients with severe, life-threatening, trauma-induced noncompressible hemorrhage arising below the diaphragm. REBOA utilizes a transfemoral balloon catheter inserted in a retrograde fashion into the aorta to provide inflow control and support blood pressure until definitive hemostasis can be achieved. Initial retrospective and registry clinical data in the trauma surgical literature demonstrate improvement in systolic blood pressure with balloon inflation and improved survival compared to open aortic cross-clamping via resuscitative thoracotomy...
September 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28580571/ultrasound-guided-balloon-catheterisation-a-new-method-of-fetal-lower-urinary-tract-obstruction-management
#12
Marzena Dębska, Adam Koleśnik, Piotr Kretowicz, Anna Olędzka, Piotr Gastoł, Romuald Dębski
OBJECTIVES: Fetal lower urinary tract obstruction (LUTO), most often associated with presence of posterior urethral valves, poses high risk of perinatal mortality or postnatal renal failure. Looking for a method of causative treatment we have devel-oped a technique of fetal urethroplasty with a coronary angioplasty balloon catheter inserted under an ultrasonographic guidance via an 18-gauge needle introduced transabdominally to fetal bladder. MATERIAL AND METHODS: We have used this procedure in three women with singleton pregnancies (two primiparas and one multipara, 32-35 years of age), diagnosed with fetal megacystis at 12-16 weeks of gestation...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28533503/guide-catheter-extension-device-is-effective-in-renal-angioplasty-for-severely-calcified-lesions
#13
Takeshi Sugimoto, Tetsuya Nomura, Yusuke Hori, Kenichi Yoshioka, Hiroshi Kubota, Daisuke Miyawaki, Ryota Urata, Masakazu Kikai, Natsuya Keira, Tetsuya Tatsumi
BACKGROUND The GuideLiner catheter extension device is a monorail-type "Child" support catheter that facilitates coaxial alignment with the guide catheter and provides an appropriate back-up force. This device has been developed in the field of coronary intervention, and now is becoming widely applied in the field of endovascular treatment. However, there has been no report on the effectiveness of the guide catheter extension device in percutaneous transluminal renal angioplasty (PTRA). CASE REPORT We encountered a case of atherosclerotic subtotal occlusion at the ostium of the left renal artery...
May 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28515828/primary-percutaneous-coronary-intervention-using-balloon-assisted-sliding-and-tracking-blast-of-diagnostic-catheter-to-negotiate-double-hairpin-loop-of-radial-artery
#14
Santosh Kumar Sinha, Vikas Mishra, Mukesh Jitendra Jha, Mahmadula Razi, Anupam Mahrotra, Nasar Abdali, Lokendra Rekwal, Vikas Chaturvedi, Anupam Kumar Singh, Ramesh Thakur
During transradial intervention, sharp edge of the guide catheter tip may act like a "razor-blade" and can prevent the catheter navigation especially in situation like double hair pin loop. Here, we report primary percutaneous coronary intervention (PCI) through diagnostic catheter using an innovative technique, balloon-assisted sliding and tracking (BLAST), to overcome this double hairpin loop, thus saving time and contrast volume.
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28471001/the-inherent-catastrophic-traps-in-retrograde-cto-pci
#15
Eugene B Wu, Etsuo Tsuchikane
When we learn to drive, our driving instructor tells us how to check the side mirror and turn your head to check the blind spot before changing lanes. He tells us how to stop at stop signs, how to drive in slippery conditions, the safe stopping distances, and these all make our driving safe. Similarly, when we learn PCI, our mentors teach us to seat the guiding catheter co-axially, to wire the vessel safely, to deliver balloon and stents over the wire, to watch the pressure of the guiding, in order that we perform PCI safely and evade complications...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28457630/non-invasive-thrombolysis-using-microtripsy-in-a-porcine-deep-vein-thrombosis-model
#16
Xi Zhang, Jonathan J Macoskey, Kimberly Ives, Gabe E Owens, Hitinder S Gurm, Jiaqi Shi, Matthew Pizzuto, Charles A Cain, Zhen Xu
Histotripsy is a non-invasive therapeutic technique that uses ultrasound generated from outside the body to create controlled cavitation in targeted tissue, and fractionates it into acellular debris. We have developed a new histotripsy approach, termed microtripsy, to improve targeting accuracy and to avoid collateral tissue damage. This in vivo study evaluates the safety and efficacy of microtripsy for non-invasive thrombolysis in a porcine deep vein thrombosis model. Acute thrombi were formed in left femoral veins of pigs (∼35 kg) by occluding the vessel using two balloon catheters and infusing with thrombin...
July 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28454791/transesophageal-echocardiography-for-incremental-value-of-amplatezer-cribriform-septal-occluder-for-percutaneous-transcatheter-closure-of-complex-septal-defects-case-series
#17
Shen Kou Tsai, Ming C Hsiung, Jeng Wei, Yang-Tsai Lee, Ho-Ping Yu, Ching-Huei Ou, Wei-Hsian Yin
BACKGROUND: The anatomy of septal defects can be complex and morphologically unpredictable. Balloon sizing of such defects may not be feasible, and an appropriately sized commercial occluder may not be available. Therefore, percutaneous transcatheter closure of such defects can be challenging because of an increased risk of complications. In this study, we have described the efficacy and safety of transcatheter closure of complex septal defects using Amplatzer cribriform occluder devices, assessed by real time three-dimensional (RT 3D) color Doppler transesophageal echocardiography (TEE)...
April 25, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28441644/management-of-guidewire-entrapment-with-laser-atherectomy
#18
Judit Karacsonyi, Jose R Martinez-Parachini, Barbara A Danek, Aris Karatasakis, Imre Ungi, Subhash Banerjee, Emmanouil S Brilakis
A 62-year-old man was referred for percutaneous coronary intervention of a severe circumflex lesion. The guidewire became entangled in the previously implanted left anterior descending artery stent. The left main was engaged with a second guide catheter, followed by balloon dilations, various microcatheters, and laser atherectomy. The wire eventually fractured without protruding into the aorta. The circumflex lesion was stented with two stents, followed by left main stenting that covered the fragment. Caution should be used when wiring through stents; wire fracture can be treated with stent implantation, as long as the wire fragment does not protrude into the aorta...
May 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28430313/successful-balloon-assisted-percutaneous-thrombin-injection-of-right-subclavian-artery-pseudoaneurysm
#19
Andrew D Brown, Dhruvin H Hirpara, Arash Jaberi, George D Oreopoulos, Martin E Simons
PURPOSE: To report the use of a balloon catheter to facilitate percutaneous ultrasound-guided thrombin injection of a subclavian artery pseudoaneurysm. CASE REPORT: A 36-year-old man presented with hoarseness after the insertion of a right temporary internal jugular line. Arteriography showed a short neck right subclavian artery pseudoaneurysm. A 6 mm × 40 mm balloon catheter was positioned across the neck of the pseudoaneurysm to permit percutaneous ultrasound-guided thrombin injection...
April 11, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28377943/expert-evaluation-of-a-chicken-tissue-based-model-for-teaching-ultrasound-guided-central-venous-catheter-insertion
#20
Akiva Nachshon, John D Mitchell, Ariel Mueller, Valerie M Banner-Goodspeed, Jakob I McSparron
BACKGROUND: Ultrasound-guided central venous catheterization (CVC) is a commonly performed procedure which carries significant risks for complications. Current models used for simulation-based teaching are expensive and may not replicate tissue feel and ultrasound qualities of human tissues. We aimed to evaluate a tissue model composed of chicken breast and balloons and compare it to a commercially available mannequin. METHODS: Forty attending physicians from four departments with extensive CVC experience were enrolled...
January 2017: Journal of Education in Perioperative Medicine: JEPM
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