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https://www.readbyqxmd.com/read/28927635/coronary-access-following-tavi-selective-coronary-engagement-using-balloon-assisted-tracking-of-a-guide-catheter-extension
#1
Matthew Jackson, Paul D Williams
performing percutaneous coronary intervention (PCI) following transcatheter aortic valve implantation (TAVI) will become more frequent with the increasing use of TAVI in lower surgical risk populations. The ideal management strategy for coronary artery disease (CAD) in the setting of TAVI is not well defined and CAD is often left untreated prior to TAVI. Engaging the coronary ostia through the TAVI side cells can be challenging; techniques for rapid coronary cannulation, especially in the acute setting, need to be developed...
July 31, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28899228/intraoperative-venoplasty-to-facilitate-placement-of-tunneled-catheters-for-hemodialysis
#2
Afsha Aurshina, Anil Hingorani, Natalie Marks, Enrico Ascher
Objective With the implementation of the K-DOQI guidelines, more patients are in need of long-term dialysis catheters until maturation of the arteriovenous fistula. However, on occasion, when placing a tunneled cuffed catheter for hemodialysis, we have encountered difficulty with passing the guidewire in spite of demonstration of a patent cervical portion of the internal jugular vein on duplex. Herein, we review our experience with intraoperative venoplasty for placement of Tesio™ catheters (Medcomp Harleysville, PA)...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28879566/success-rate-and-complications-of-sharp-recanalization-for-treatment-of-central-venous-occlusions
#3
Emil I Cohen, Christopher Beck, Jesse Garcia, Ryan Muller, Hyun J Bang, Keith M Horton, Farris Hakki
PURPOSE: To evaluate success and safety of needle (sharp) recanalization as a method to re-establish access in patients with chronic central venous occlusions. MATERIALS AND METHODS: Thirty-nine consecutive patients who underwent this procedure were retrospectively reviewed to establish success rate and associated complications. In all cases, a 21- or 22-gauge needle was used to restore connection between two chronically occluded segments after conventional wire and catheter techniques had failed...
September 6, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28843759/hybrid-technique-for-the-treatment-of-refractory-vertebrobasilar-insufficiencies
#4
Xia Lu, Yan Ma, Bin Yang, Peng Gao, Yabing Wang, Liqun Jiao
BACKGROUND: Tortuous or occluded vertebral arteries (VAs) can lead to the endovascular treatment of vertebrobasilar insufficiency being impractical. Bypass surgery is optional, but a craniotomy of the posterior fossa is complicated when physiological vessels must be abandoned. We report 3 cases of refractory vertebrobasilar insufficiencies with different situations of unavailable approaches. Patients were treated by different hybrid operation strategies. CASE DESCRIPTION: Case 1 was of right vertebral artery ostium (VAO) severe stenosis with right V1 segment tortuosity and was treated by right VAO transposition, during which the proximal subclavian artery (SubA) was blocked by a balloon guide catheter...
August 23, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28806996/improved-passive-catheter-tracking-with-positive-contrast-for-cmr-guided-cardiac-catheterization-using-partial-saturation-psat
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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