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balloon guide catheter

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https://www.readbyqxmd.com/read/29116819/double-guide-double-wrist-5f-left-coronary-artery-transradial-percutaneous-coronary-intervention-and-the-x-kiss-technique
#1
Dangoisse Vincent, Schroëder Erwin, Claude Hanet, Antoine Guédès, Pancholy Samir
Percutaneous coronary intervention for bifurcated anatomy, particularly at the proximal left coronary artery site, requires guide catheters (GC) of at least 6 french and preferably larger in diameter. We describe a new trans-radial approach more suitable for small artery size: the simultaneous use of both radial arteries for double cannulation of the LMCA with 5F GC: each GC will target either the LM/LAD or the LM/CX artery (or LM-LAD/LM-LAD-1st diagonal branch) stenoses. The technique successfully was applied to 5 cases...
November 8, 2017: Acute Cardiac Care
https://www.readbyqxmd.com/read/29071153/validity-of-a-sponge-trainer-as-a-simple-training-model-for-percutaneous-renal-access
#2
Ahmad M Tawfik, Ahmed S El-Abd, Mohamed Abo El-Enen, Yasser A Farahat, Mohamed A El-Bendary, Osama M El-Gamal, Mohamed G Soliman, Abdelhameed M El-Bahnasy, Mohamed Rasheed
OBJECTIVE: To evaluate the efficacy of our simply designed trainer for junior urologists to acquire the initial skills for percutaneous renal access (PRA). SUBJECTS AND METHODS: Three sponge sheets (60 × 50 × 10 cm) were arranged horizontally over each other. A rectangular groove was made in the middle sheet to accommodate an inflated balloon of a Foley catheter, radio-opaque metal balls, metal rings, or a plastic tube that were sequentially placed for the four training tasks...
September 2017: Arab Journal of Urology
https://www.readbyqxmd.com/read/29066585/use-of-cardiac-cycle-locating-to-minimize-the-influence-of-cardiac-artifacts-on-esophageal-pressure-measurement-during-dynamic-occlusion-test
#3
Xuan He, Xiu-Mei Sun, Guang-Qiang Chen, Yan-Lin Yang, Zhong-Hua Shi, Ming Xu, Jian-Xin Zhou
BACKGROUND: The dynamic occlusion test is used to guide balloon catheter placement during esophageal pressure (Pes) monitoring. We introduced a cardiac cycle locating method to attenuate the influence of cardiac artifacts on Pes measurement. The aim was to provide a reliable analytic algorithm for the occlusion test. METHODS: Esophageal balloon catheters were placed in subjects receiving pressure support ventilation. During balloon position adjustment, end-expiratory occlusion was performed to induce 3 consecutive inspiratory efforts...
October 24, 2017: Respiratory Care
https://www.readbyqxmd.com/read/29064539/guidezilla-extension-catheter-for-percutaneous-interventional-therapy-of-complex-lesions-via-a-transradial-approach-case-series-from-a-single-center-experience
#4
Chen-Yang Chen, Yi-Yuan Huang, Liang Tang, Xin-Qun Hu, Zhen-Fei Fang, Sheng-Hua Zhou
BACKGROUND: Guide catheter extension systems have become one of the most powerful tools for addressing complex lesions during percutaneous coronary intervention (PCI), but data on a new-generation rapid exchange extension catheter - the Guidezilla catheter - are limited. Summarized herein reports on experience using the Guidezilla catheter for complex coronary lesions via a transradial approach at the documented institution an evaluation of its safety and efficacy. METHODS: A total of 25 patients (19 males and 6 females) who underwent PCI via the radial approach with the Guidezilla catheter for adequate back-up support and to facilitate equipment delivery were enrolled...
October 24, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/29017808/a-novel-technique-for-duplex-guided-office-based-interventions-for-patients-with-acute-arteriovenous-fistula-occlusion
#5
Afsha Aurshina, Enrico Ascher, Anil Hingorani, Natalie Marks
OBJECTIVE: The purpose of the study was to aggressively salvage acutely occluded arteriovenous fistulas (AVFs) using duplex imaging as the sole imaging modality for percutaneous transluminal angioplasty of acutely thrombosed AVF. METHODS: Over a period of 12 months, 14 patients with acute thrombosis of their AVFs underwent 18 procedures in a single center for AVF salvage. All 14 patients presented with chronic renal failure, and six were diabetic. All patients were treated under duplex guidance alone...
October 7, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28963367/trevo-stent-retriever-mechanical-thrombectomy-for-acute-ischemic-stroke-secondary-to-large-vessel-occlusion-registry
#6
Osama O Zaidat, Alicia C Castonguay, Raul G Nogueira, Diogo C Haussen, Joey D English, Sudhakar R Satti, Jennifer Chen, Hamed Farid, Candace Borders, Erol Veznedaroglu, Mandy J Binning, Ajit Puri, Nirav A Vora, Ron F Budzik, Guilherme Dabus, Italo Linfante, Vallabh Janardhan, Amer Alshekhlee, Michael G Abraham, Randall Edgell, Muhammad Asif Taqi, Ramy El Khoury, Maxim Mokin, Aniel Q Majjhoo, Mouhammed R Kabbani, Michael T Froehler, Ira Finch, Sameer A Ansari, Roberta Novakovic, Thanh N Nguyen
BACKGROUND: Recent randomized clinical trials (RCTs) demonstrated the efficacy of mechanical thrombectomy using stent-retrievers in patients with acute ischemic stroke (AIS) with large vessel occlusions; however, it remains unclear if these results translate to a real-world setting. The TREVO Stent-Retriever Acute Stroke (TRACK) multicenter Registry aimed to evaluate the use of the Trevo device in everyday clinical practice. METHODS: Twenty-three centers enrolled consecutive AIS patients treated from March 2013 through August 2015 with the Trevo device...
September 29, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28956124/fluoroscopy-guided-balloon-dilation-in-patients-with-eustachian-tube-dysfunction
#7
Kun Yung Kim, Jiaywei Tsauo, Ho-Young Song, Hong Ju Park, Woo Seok Kang, Jung-Hoon Park, Zhe Wang
OBJECTIVES: To prospectively evaluate the technical feasibility and safety of fluoroscopy-guided balloon dilation in patients with Eustachian tube (ET) dysfunction. METHODS: Patients who could not do a Valsalva manoeuvre for more than 6 months and diagnosed with chronic otitis media or ET dysfunction were prospectively enrolled. A 0.035-in. guide wire and 6-mm long balloon catheter with a diameter of 2 mm were used to dilate the cartilaginous portion of the ET under fluoroscopic guidance...
September 27, 2017: European Radiology
https://www.readbyqxmd.com/read/28951756/inflatable-multichannel-rectal-applicator-for-adaptive-image-guided-endoluminal-high-dose-rate-rectal-brachytherapy-design-dosimetric-characteristics-and-first-clinical-experiences
#8
Maximilian P Schmid, Daniel Berger, Martin Heilmann, Jessica Bör, Bernd Wisgrill, Ursula Azizi-Semrad, Nicole Nesvacil, Richard Pötter, Christian Kirisits, Rainer Schmid
PURPOSE: To investigate the dosimetric results and first clinical experiences with a new designed balloon applicator with adjustable catheters for endoluminal brachytherapy for patients with locally advanced rectal cancer not undergoing surgery. MATERIAL AND METHODS: The applicator consists of an inflatable rectal balloon with six attached Foley catheters used as guidance for the inserted brachytherapy plastic needles. The construction of the applicator and the dosimetric profile in terms of representative dose points in 0, 2, 5, 10 mm ipsilaterally and in 0 mm contralaterally are described...
August 2017: Journal of Contemporary Brachytherapy
https://www.readbyqxmd.com/read/28946180/usefulness-of-contralateral-carotid-angiography-in-revascularization-therapy-of-acute-internal-carotid-artery-occlusion
#9
Kiyoshi Tsuji, Nobuhiro Nakagawa, Norihito Fukawa, Masaharu Miyauchi, Kentaro Furukawa, Kinya Nakanishi, Naoki Nakano, Kazuo Kataoka, Amami Kato
OBJECTIVE The vascular lumen of an acutely occluded internal carotid artery (ICA) generally contains numerous thrombi. Therefore, carotid angiography on the affected side during revascularization therapy of acute ICA occlusion has a potential risk of causing distal embolization. In this study the authors propose the use of contralateral carotid angiography. METHODS Six patients with acute ICA occlusion underwent revascularization therapy using a stent retriever or Penumbra system. Revascularization therapy was performed with placement of a 9-Fr balloon-guiding catheter (BGC) in the affected ICA and a 4-Fr diagnostic catheter in the contralateral ICA...
September 15, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28927635/coronary-access-following-tavi-selective-coronary-engagement-using-balloon-assisted-tracking-of-a-guide-catheter-extension
#10
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
#11
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
#12
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
#13
Xia Lu, Yan Ma, Bin Yang, Peng Gao, Yabing Wang, Liqun Jiao
BACKGROUND: Tortuous or occluded vertebral arteries (VAs) can make the endovascular treatment of vertebrobasilar insufficiency impractical. Bypass surgery is an option, but a craniotomy of the posterior fossa is complicated when physiologic vessels must be abandoned. We report 3 cases of refractory vertebrobasilar insufficiency with different presentations requiring problematic approaches in which the patients were treated by different hybrid strategies. CASE DESCRIPTION: Patient 1 had severe stenosis of right VA ostium with right V1 segment tortuosity and was treated by right VA ostium transposition during which the proximal subclavian artery was blocked by a balloon guide catheter...
November 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
#14
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
#15
Monique T Barakat, Mohit Girotra, Abhishek Choudhary, Robert J Huang, Saurabh Sethi, Subhas Banerjee
BACKGROUND AND AIMS: Endoscopy has replaced many radiologic studies for the GI tract. However, ERCP remains a hybrid endoscopic-fluoroscopic procedure, which limits its portable delivery, creates delays because of fluoroscopy room unavailability, and exposes patients and providers to radiation. We evaluated fluoroscopy/radiation-free management of patients with noncomplex choledocholithiasis using direct solitary cholangioscopy (DSC). METHODS: Patients underwent fluoroscopy-free biliary cannulation, sphincterotomy, and then cholangioscopy to establish location and number/size of stones and to 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
#16
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
#17
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
#18
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
#19
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
#20
Tomotaka Ohshima, Kojiro Ishikawa, Shunsaku Goto, Taiki Yamamoto
BACKGROUND: 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. METHODS: In 9 patients with severe atherosclerosis or anatomic variations such as a bovine arch, 8-9-F balloon-mounted guide catheters were navigated using balloon-attached guidewires. Both balloons were used complementarily for flow navigation and vessel fixation at the appropriate positions and times...
October 2017: World Neurosurgery
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