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https://www.readbyqxmd.com/read/28527615/a-multicenter-randomized-trial-comparing-the-use-of-touch-versus-no-touch-guidewire-technique-for-deep-biliary-cannulation-the-tnt-study
#1
Marco Bassi, Carmelo Luigiano, Stefania Ghersi, Carlo Fabbri, Giulia Gibiino, Lucio Balzani, Giuseppe Iabichino, Alberto Tringali, Raffaele Manta, Massimiliano Mutignani, Vincenzo Cennamo
BACKGROUND AND AIMS: There are 2 techniques described for selective bile duct guidewire cannulation, the touch (T) technique (engaging the papilla with a sphincterotome and then advancing the guidewire) and the no-touch (NT) technique (engaging the papilla only with the guidewire). The aim of this prospective, multicenter randomized study was to compare the outcomes of the 2 guidewire cannulation techniques. METHODS: 300 consecutive patients with naive papillae were enrolled in 2 groups (150 to T group and 150 to NT group)...
May 17, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28516401/endovascular-crossing-of-chronic-total-occlusions-using-an-impulse-an-explorative-design-study
#2
Aimée Sakes, Marleen van der Wiel, Dimitra Dodou, Paul Breedveld
In this study we investigated whether exerting an impulse on a Chronic Total Occlusion (CTO) improves the success rate of CTO crossing as compared to the currently used method of statically pushing the guidewire against the CTO. A prototype (Ø2 mm) was developed that generates translational momentum using a spring-loaded indenter and converts it to an impulse during impact. Mechanical performance was evaluated by measuring the peak force and momentum for different spring compressions and strike distances in air and blood-mimicking fluid...
May 17, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28515858/three-dimensional-optical-coherence-tomography-reconstruction-of-bifurcation-stenting-using-the-szabo-anchor-wire-technique
#3
Katherine Yu, Harkawal Hundal, Todd Zynda, Arnold Seto
Ostial lesions present unique challenges for percutaneous coronary intervention (PCI). These lesions are often more calcified, fibrotic, rigid, and more prone to elastic recoil. Intervention on these lesions is associated with higher procedural complications and higher rates of restenosis. Ostial lesions require precise stent placement in the ostium with the absence of side branch compromise. Accurate stent placement in the ostium without side branch compromise is difficult to accomplish with angiography alone...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28506940/cool-ami-eu-pilot-trial-a-multicentre-prospective-randomised-controlled-trial-to-assess-cooling-as-an-adjunctive-therapy-to-percutaneous-intervention-in-patients-with-acute-myocardial-infarction
#4
Marko Noc, David Erlinge, Aleksandar N Neskovic, Srdjan Kafedzic, Béla Merkely, Endre Zima, Misa Fister, Milovan Petrović, Milenko Čanković, Gábor Veress, Peep Laanmets, Teele Pern, Vladan Vukcevic, Vladimir Dedovic, Beata Średniawa, Andrzej Świątkowski, Thomas R Keeble, John R Davies, Alexandra-Maria Warenits, Göran Olivecrona, Jan Zbigniew Peruga, Michal Ciszewski, Ivan Horvath, Istvan Edes, Gergely Gyorgy Nagy, Daniel Aradi, Michael Holzer
AIMS: We aimed to investigate the rapid induction of therapeutic hypothermia using the ZOLL Proteus Intravascular Temperature Management System in patients with anterior ST-elevation myocardial infarction (STEMI) without cardiac arrest. METHODS AND RESULTS: A total of 50 patients were randomised; 22 patients (88%; 95% confidence interval [CI]: 69-97%) in the hypothermia group and 23 patients (92%; 95% CI: 74-99) in the control group completed cardiac magnetic resonance imaging at four to six days and 30-day follow-up...
May 17, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28497857/validation-of-electrical-ostial-pulmonary-vein-isolation-verified-with-a-spiral-inner-lumen-mapping-catheter-during-second-generation-cryoballoon-ablation
#5
Shinsuke Miyazaki, Takatsugu Kajiyama, Tomonori Watanabe, Hiroshi Taniguchi, Hiroaki Nakamura, Rikuta Hamaya, Shigeki Kusa, Miyako Igarashi, Hitoshi Hachiya, Kenzo Hirao, Yoshito Iesaka
BACKGROUND: Achieve catheters are cryoballoon guidewires that enable pulmonary vein (PV) potential mapping. The single catheter approach in conjunction with the Achieve catheter is currently standard practice in second-generation cryoballoon ablation, yet circumferential mapping catheters are the gold standard for evaluating PV isolation (PVI). The study sought to validate the ostial PVI verified by an Achieve catheter alone. METHODS: One-hundred fifty-one paroxysmal atrial fibrillation patients undergoing PVI using exclusively 28-mm second-generation cryoballoons were enrolled...
May 12, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28493108/percutaneous-septectomy-in-chronic-dissection-with-abdominal-aortic-aneurysm-creates-uniluminal-neck-for-evar
#6
Mark Colin Gissler, Yukihisa Ogawa, Jason T Lee, Venita Chandra, Michael D Dake
PURPOSE: The intent of this report is to describe the technical details and rationale of endovascular septectomy using a wire saw maneuver in cases of chronic aortic dissection and associated infra-renal aortic aneurysm to allow standard endovascular abdominal aortic graft placement; preliminary clinical experience is also retrospectively reviewed. MATERIALS AND METHODS: Between June 2013 and June 2016, four consecutive patients (mean age 55.3 years; range 52-58 years) with chronic type B aortic dissection and isolated infra-renal abdominal aortic aneurysm (AAA) underwent endovascular aneurysm repair (EVAR) following guidewire septectomy to create a suitable proximal aortic landing zone...
May 10, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28486843/emergent-endovascular-repair-of-challenging-aortocaval-fistula-with-hostile-anatomy
#7
Yuewei Wang, Wenjuan Yu, Yongxin Li, Haofu Wang
Aortocaval fistula (ACF) is a rare complication. Endovascular repair is an option for this fatal condition. However, endoleak and persistent fistula may occur and lead to technical failure. We performed endovascular repair for 3 cases of challenging ACF with hostile anatomy. Patient 1 was an 80-year-old man who complained of abdominal distension and lower limb edema for 15 days. He had renal and cardiac dysfunction. Computed tomography angiography (CTA) showed an ACF and extreme tortuosity of right iliac artery...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28483627/endovascular-treatment-with-primary-stenting-of-acutely-thrombosed-popliteal-artery-aneurysms
#8
Aaron Fargion, Fabrizio Masciello, Giovanni Pratesi, Elena Giacomelli, Walter Dorigo, Carlo Pratesi
PURPOSE: Only anecdotal cases concerning primary stenting of thrombosed popliteal artery aneurysm (PAA) without a preoperative intra-arterial thrombolysis are reported. We report our series of six patients treated with this technique. CASE REPORT: Six male patients, aged between 63 and 88, came to our attention in the last 10 years for acute limb ischemia due to thrombosis of a PAA. In all the cases immediate digital subtraction angiography (DSA) was performed, the occlusion was crossed with an angiographic guidewire and, once an adequate distal landing zone was identified in the distal popliteal artery, a primary stenting was performed...
May 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28482342/pioglitazone-attenuates-injury-induced-neointima-formation-in-mouse-femoral-artery-partially-through-the-activation-of-amp-activated-protein-kinase
#9
Islam Osman, Arwa Fairaq, Lakshman Segar
BACKGROUND/AIMS: Pioglitazone (PIO), an antidiabetic drug, has been shown to attenuate vascular smooth muscle cell (VSMC) proliferation, which is a major event in atherosclerosis and restenosis after angioplasty. Till date, the likely contributory role of AMP-activated protein kinase (AMPK) toward PIO inhibition of VSMC proliferation has not been examined in vivo. This study is aimed at determining whether pharmacological inhibition of AMPK would prevent the inhibitory effect of PIO on neointima formation in a mouse model of arterial injury...
May 9, 2017: Pharmacology
https://www.readbyqxmd.com/read/28480081/peeled-guidewire-coating-with-debulked-plaque-obtained-by-directional-coronary-atherectomy
#10
Rikuta Hamaya, Taishi Yonetsu, Sadamitsu Ichijo, Makoto Araki, Tadashi Murai, Yoshihisa Kanaji, Eisuke Usui, Junji Matsuda, Masahiro Hoshino, Masahiro Hada, Takayuki Niida, Yoshinori Kanno, Tsunekazu Kakuta
Percutaneous directional coronary atherectomy (DCA) is a plaque debulking method performed in Japan, and recently a renewed DCA device has been launched. We present a case with a tight left anterior descending lesion undergoing percutaneous coronary intervention with application of DCA. After several sessions of DCA, white plaques accompanied by green, stringed materials were obtained from the device; some materials were considerably long (approximately 15 mm in length). A drug-eluting stent was subsequently implanted, and the procedure was completed successfully without any complications...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28479270/reconstruction-of-an-accidentally-crushed-stent-guided-by-intravascular-ultrasound-during-a-left-main-percutaneous-coronary-intervention
#11
Mohsen Mohandes, Mauricio Torres, Sergio Rojas, Francisco Fernández, Jordi Guarinos, Cristina Moreno
We present a case of an accidentally crushed stent due to an unnoticed passage of a guidewire through a lateral stent strut with subsequent stent compression after balloon dilatation, during a planned percutaneous coronary intervention on the left main. The crushed stent segment was reconstructed with step-by-step balloon dilation, guided by intravascular ultrasound.
May 4, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28476438/controlled-antegrade-intimal-tracking-with-subintimal-balloon-inflation-as-a-novel-bailout-technique-for-chronic-total-occlusion-after-failed-intravascular-ultrasound-guided-parallel-wire-technique
#12
Yuta Imai, Junji Yajima, Fumitaka Hosaka
Failure to cross with a guidewire is the most common reason for failure of chronic total occlusion (CTO) percutaneous coronary intervention (PCI). In cases of CTO PCI with no interventional collaterals, an intravascular ultrasound (IVUS)-guided parallel wire technique is usually the last-resort procedure. Failure of this technique sometimes causes enlarged subintimal space, resulting in procedure failure. We present a successful second attempt at left anterior descending artery CTO PCI with no interventional collaterals...
April 24, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28471082/interosseous-artery-as-an-access-artery-in-case-of-late-radial-artery-occlusion
#13
Avtandil M Babunashvili, Samir B Pancholy
We report a new technique of arterial access through the ipsilateral interosseous artery in a case of late radial artery occlusion (RAO). RAO, although not frequent, is a limiting iatrogenic complication after transradial intervention (TRI) and precludes repeat use of the same radial artery for future procedures. Our technique involves obtaining access to the ipsilateral radial artery (RA) in the distal postocclusion segment and use of collateral channel between this segment and the interosseous artery (IOA) for advancing a guidewire and sheath in the IOA lumen and in brachial artery thereafter...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28457200/simultaneous-antegrade-retrograde-subintimal-revascularization-of-a-femoropopliteal-chronic-total-occlusion-by-a-reentry-device-facilitated-puncture-of-a-retrogradely-inserted-balloon
#14
Jan Peter Goltz, Susanne Anton, Marcus Wiedner, Jörg Barkhausen, Erik Stahlberg
PURPOSE: To report a rendezvous technique for subintimal revascularization of a chronic total occlusion (CTO) of the superficial femoral artery (SFA). TECHNIQUE: This maneuver is appropriate after failure to cross a long SFA CTO via intra- and subintimal approaches from the ipsilateral femoral as well as retrograde posterior tibial artery (PTA) access sites. After predilation of the subintimal space from the femoral access, a reentry device was placed at the level of the first popliteal artery segment...
April 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28449503/re-crossing-the-distal-cell-in-bifurcation-verified-by-using-an-enhanced-stent-visualization-system-and-optical-coherence-tomography-a-report-of-two-cases
#15
Ruofei Jia, Zening Jin, Hong Li, Jing Han
The coronary guidewire re-crossing position before the final kissing balloon post-dilation is important to reduce the incidence of incomplete stent apposition in bifurcation lesions. Angiography and intravascular ultrasonography are unreliable at detecting the site of wire re-crossing. The high resolution of optical coherence tomography (OCT) offers the advantage of precise assessment of construction in bifurcation. However, the OCT technique still has some limitations, including the requirement for additional contrast and expense...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28441644/management-of-guidewire-entrapment-with-laser-atherectomy
#16
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/28439303/proximal-femoral-osteotomy-in-children-with-cerebral-palsy-the-perspective-of-the-trainee
#17
L Zhou, M Camp, A Gahukamble, K L Willoughby, M Harambasic, C Molesworth, A Khot, H K Graham
BACKGROUND: There are a range of implants for fixation of proximal femoral osteotomies (PFOs) in children. We investigated the training experiences and preferences of orthopaedic residents and fellows who were learning PFO, using a fixed angled blade plate (ABP) or a locking, cannulated blade plate (LCBP). We also studied short-term technical and radiographic outcomes. METHODS: This was a prospective, parallel-group, cohort study of 90 consecutive children and adolescents with cerebral palsy who underwent bilateral PFOs with ABP or LCBP...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28429637/analysis-of-rotation-angles-and-motions-of-the-flexible-mechanisms-in-bifurcated-blood-vessels
#18
Bin He, Shoulin Xu, An Ding, Yanmin Zhou
This article investigates the relationship of rotation angle of two ends of elastic guidewires, and motion method of guidewires and catheters in bifurcated blood vessels. The relationship of rotation angles of the two ends of the guidewire has first been studied by mathematical reasoning, indicating that the rotation angle of the front end of guidewire can be precisely described by that of the rear end. In order to satisfy the requirements of different vascular interventional surgeries, we further investigated a general model of bifurcated human blood vessels...
April 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28427741/management-of-biliary-anastomotic-strictures-after-liver-transplantation
#19
REVIEW
Aydin Seref Koksal, Ahmet Tarik Eminler, Erkan Parlak, Ahmet Gurakar
Biliary strictures constitute 40% to 60% of the biliary complications after liver transplantation. They are more common after living donor related liver transplantation (LDLT) than orthotopic liver transplantation (OLT). Balloon dilation followed by multiple plastic stent insertion leads to a mean resolution rate of 84% in the treatment of ASs after OLT. Endoscopic treatment of ASs after LDLT is more difficult because of the small size of the ASs, their multiple number and peripheral location. Balloon dilation followed by multiple plastic stent insertion had a mean resolution rate of 53%...
March 30, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28427597/intentional-percutaneous-laceration-of%C3%A2-the%C3%A2-anterior-mitral-leaflet-to-prevent%C3%A2-outflow%C3%A2-obstruction-during-transcatheter-mitral-valve-replacement-first-in-human%C3%A2-experience
#20
Vasilis C Babaliaros, Adam B Greenbaum, Jaffar M Khan, Toby Rogers, Dee Dee Wang, Marvin H Eng, William W O'Neill, Gaetano Paone, Vinod H Thourani, Stamatios Lerakis, Dennis W Kim, Marcus Y Chen, Robert J Lederman
OBJECTIVES: This study sought to use a new catheter technique to split the anterior mitral valve leaflet (AML) and prevent iatrogenic left ventricular outflow tract (LVOT) obstruction immediately before transcatheter mitral valve replacement (TMVR). BACKGROUND: LVOT obstruction is a life-threatening complication of TMVR, caused by septal displacement of the AML. METHODS: The procedure was used in patients with severe mitral valve disease and prohibitive surgical risk...
April 24, 2017: JACC. Cardiovascular Interventions
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