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https://www.readbyqxmd.com/read/29330575/a-new-technique-for-minimal-invasive-complete-spinal-cord-injury-in-minipigs
#1
Elena E Foditsch, Gratian Miclaus, Irina Patras, Ioan Hutu, Karin Roider, Sophina Bauer, Günter Janetschek, Ludwig Aigner, Reinhold Zimmermann
BACKGROUND: The aim of this study was to develop a minimal invasive complete spinal cord injury (SCI) minipig model for future research applications. The minipig is considered a translationally relevant model for SCI research. However, a standardized minimal invasive complete SCI model for pigs has not yet been established. METHODS: Adult Göttingen minipigs were anesthetized and placed in extended prone position. After initial computed tomography (CT) scan, the skin was incised, a needle placed in the epidural fatty tissue...
January 12, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29314560/robotic-assisted-transradial-diagnostic-coronary-angiography
#2
Rajesh V Swaminathan, Sunil V Rao
Robotic percutaneous coronary interventions have recently been introduced in the cardiac catheterization laboratory. Robotics offers benefits of greater precision for stent placement and occupational hazard protection for operators and staff. First generation systems were able to advance and retract coronary wires, balloons, and stents, but did not have guide control functions. The second-generation robotic system (CorPath GRX) has an active guide management function offering the ability to move guide catheters...
January 4, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29305903/-around-the-world-how-to-reach-native-coronary-artery-lesions-through-long-and-tortuous-aortocoronary-bypass-grafts
#3
EDITORIAL
Peter Tajti, Yader Sandoval, Emmanouil S Brilakis
For patients with prior coronary artery bypass graft surgery, reaching lesions in native coronary arteries distal to the anastomosis of bypass grafts can be challenging due to long distance between the graft ostium and the lesion and significant tortuosity that needs to be traversed. We describe one such lesion in a patient presenting with non-ST segment elevation myocardial infarction and cardiogenic shock. The lesion was successfully treated using a variety of strategies, including use of a short guide catheter, long guidewire, a guide catheter extension, long shaft balloons and stents, and short length stents...
January 3, 2018: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/29275891/transradial-guided-percutaneous-transaxillary-intra-aortic-balloon-pump-insertion
#4
Samual Hayman, Shahar Lavi, Ryan Davey, Sabe De, Stuart Smith, Rodrigo Bagur
Axillary access for an intra-aortic balloon pump allows patients with advanced heart failure (HF) to sit upright and ambulate while waiting for destination therapy or bridging to heart transplantation. We describe the combination of radial access for positioning a 4F pigtail catheter to allow axillary angiography and provide a target for a micropuncture needle entry point in a fully anticoagulated patient with advanced HF.
January 2018: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/29250292/comparison-of-the-efficacy-of-pvac%C3%A2-and-nmarq%C3%A2-for-paroxysmal-atrial-fibrillation
#5
REVIEW
Avishag Laish-Farkash, Mahmoud Suleiman
Pulmonary vein isolation (PVI) has become the mainstay of therapy for atrial fibrillation (AF) and one of the most frequently performed procedures in the cardiac electrophysiology laboratory. PVI by a single-tip radiofrequency (RF) ablation catheter remains a complex and time-consuming procedure, especially in centers with limited experience. In order to simplify the PVI procedure, to shorten it and reduce the complication rate, circular multi-electrode catheters were introduced for simultaneous mapping and ablation...
April 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29239803/ultrasound-guided-ureteroscopy-in-children-safety-and-success
#6
Jeffrey C Morrison, Jason P Van Batavia, Kassa Darge, Christopher J Long, Aseem R Shukla, Arun K Srinivasan
INTRODUCTION: Ureteroscopy has been shown to be a highly efficacious and safe modality for the treatment of pediatric urolithiasis. However, conventional ureteroscopy relies on fluoroscopy for intraoperative guidance, exposing both patient and operating room personnel to ionizing radiation. Pediatric urolithiasis patients are at a particularly increased risk from this radiation exposure. The use of ultrasound in place of fluoroscopy for intraoperative guidance has emerged as one modification that can reduce radiation exposure during ureteroscopy...
October 14, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/29238099/8-f-balloon-guide-catheter-for-embolization-of-anterior-circulation-aneurysms-an-institutional-experience-in-152-patients
#7
Tomotaka Ohshima, Chinmaya Dash, Andrey Belayev, Taiki Yamamoto, Shunsaku Goto, Yoko Kato
The use of 8-F balloon guide catheter (BGC) for proximal flow control was previously shown to prevent distal embolic complications during mechanical clot retrieval in patients with acute ischemic stroke. In this retrospective study, the utility of 8-F BGCs for proximal flow control during endovascular coiling of anterior circulation aneurysms was investigated. Patients who underwent endovascular coiling for anterior circulation aneurysms between August 2013 and December 2016 were retrospectively analyzed. Among a total of 152 patients included in this series, 64 patients presented with aneurysmal rupture, whereas the aneurysms were detected incidentally or due to mass effects in the remaining patients...
November 2017: Nagoya Journal of Medical Science
https://www.readbyqxmd.com/read/29221959/robotically-assisted-percutaneous-coronary-intervention-reasons-for-partial-manual-assistance-or-manual-conversion
#8
Jonathan Harrison, Lawrence Ang, Jesse Naghi, Omid Behnamfar, Ali Pourdjabbar, Mitul P Patel, Ryan R Reeves, Ehtisham Mahmud
BACKGROUND: Robotically-assisted percutaneous coronary intervention (R-PCI) is feasible for simple coronary lesions. OBJECTIVES: To determine the frequency and reasons for partial manual assistance or manual conversion during R-PCI in clinical practice. METHODS: The CorPath 200 System (Corindus, Waltham, MA) enables the operator to sit in a radiation-shielded cockpit and remotely control intracoronary devices including guidewires, balloons, and stents...
November 9, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29217521/laser-balloon-or-wide-area-circumferential-irrigated-radiofrequency-ablation-for-persistent-atrial-fibrillation-a-multicenter-prospective-randomized-study
#9
RANDOMIZED CONTROLLED TRIAL
Boris Schmidt, Petr Neuzil, Armin Luik, Joaquin Osca Asensi, Jan Wilko Schrickel, Thomas Deneke, Stefano Bordignon, Jan Petru, Matthias Merkel, Lucie Sediva, Annemarie Klostermann, Laura Perrotta, Oscar Cano, K R Julian Chun
BACKGROUND: Pulmonary vein isolation is the cornerstone of ablation for persistent atrial fibrillation (AF). The role of balloon catheters in this patient population remains ill defined. We sought to compare efficacy and safety of the laser balloon (LB) with wide-area circumferential pulmonary vein isolation using irrigated radiofrequency current (RF) ablation and 3-dimensional mapping. METHODS AND RESULTS: In 6 European centers, patients with persistent AF were prospectively randomized...
December 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29179651/endovascular-therapy-of-the-superficial-femoral-artery-via-a-stand-alone-transradial-access-a-single-center-experience
#10
Elias B Hanna, Bashar A Ababneh, Amit N Amin
OBJECTIVE: We describe our experience in transradial recanalization of the superficial femoral artery (SFA), and we provide a stepwise approach accounting for the patient's height and optimizing the yield of currently available devices. METHODS AND RESULTS: Fifteen patients with simple SFA disease, including 4 patients with total SFA occlusions <15 cm, were selected for stand-alone transradial recanalization. A 6F, 125-cm multipurpose guiding catheter was used to cannulate the limb of interest and support device delivery...
February 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29168231/a-newly-hybrid-anchoring-balloon-for-direct-peroral-cholangioscopy-using-an-ultraslim-upper-endoscope
#11
Jian Li, Shao-Ju Guo, Jing-Chao Zhang, Hong-Yan Wang, Kai Li, She-Hui Niu
OBJECTIVES: Large impacted or residual invisible common bile duct (CBD) stones after mechanical lithotripsy are challenging. We aimed to evaluate the feasibility and success rate of a new hybrid anchoring balloon-guided direct peroral cholangioscopy (POC) for these conditions, using an ultraslim endoscope. METHODS: Sixty-five patients with large or residual invisible CBD stones for direct POC from July 2012 to July 2016 were identified, including 6 cases in whom an additional interventional procedure was required...
November 23, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/29167623/bioresorbable-vascular-scaffold-stent-delivered-to-tortuous-lesions-by-using-the-five-in-six-system
#12
Wen-Jung Chung, Hsiu-Yu Fang, Chiung-Jen Wu
A 5Fr ST01, which is a straight-tip guiding catheter with an inner lumen of 1.5 mm, is frequently used to perform the "child-in-mother" technique, which is also referred to as the "5-in-6" technique. A 6Fr or larger size guiding catheter can facilitate bioresorbable everolimus-eluting vascular scaffold (BVS) delivery. For tortuous lesions, the 5-in-6 technique can facilitate balloon catheters and the BVS in crossing tortuous lesions by increasing the back-up support. However, this maneuver couldn't be used for the larger size of BVS like 3...
November 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29116819/double-guide-double-wrist-5f-left-coronary-artery-transradial-percutaneous-coronary-intervention-and-the-x-kiss-technique
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
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
#20
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
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