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  • vascular
  • We used a novel method of microparticle size assessment to measure volume and characterize individual sizes of particles captured by the PercuSurge GuardWire balloon or a vascular filter during saphenous vein graft stenting. (ahajournals.org)
  • Conclusions- During saphenous vein graft interventions, particulate retrieved with a vascular filtering device or an occlusion balloon was similar in amount and character. (ahajournals.org)
  • monocytes and polycytes migrate to the vascular wall, which has, as a result of the occlusion, become permeable to the blood's cellular components. (wikipedia.org)
  • Schaper summarizes the status-2009 knowledge of coronary collateral transformation in a recent review: "Following an arterial occlusion outward remodeling of pre-existent inter-connecting arterioles occurs by proliferation of vascular smooth muscle and endothelial cells. (wikipedia.org)
  • Mechanical failure of the balloon itself is also a risk which entails vascular surgery to remove under that circumstance. (wikipedia.org)
  • ischemia
  • 19 However, rigorous particulate analysis was not performed in that trial, and it is not known whether there may be benefits of an occlusion balloon system (eg, more complete particulate retrieval and prevention of soluble mediators released during intervention) that are being offset by requisite procedural ischemia provoked by occlusion. (ahajournals.org)
  • After balloon removal there is also a risk of 'embolic shower' from micro clots that have formed on the surface of the balloon, and can lead to peripheral thrombosis, myocardial ischemia, hemodynamic decompensation, and late pseudoaneurysm. (wikipedia.org)
  • Emboli are abnormal masses of material (which can be solid, liquid or gas) that are carried in the blood stream from one part of the circulation to another causing a blockage (occlusion) of a blood vessel that leads to lack of oxygen supply (ischemia) and finally infarction of tissue downstream of the embolus. (wikipedia.org)
  • efficacy
  • Therefore, cross-clamping after thoracotomy has been replaced with the aortic occlusion technique because of the latter's greater efficacy and feasibility. (pubmedcentralcanada.ca)
  • This supports the notion that unless soluble mediators play an important role in adverse acute clinical events after stenting, the clinical efficacy of filtering devices may be equal to that of occlusion devices. (ahajournals.org)
  • It has not been established that the efficacy of occlusion systems can be matched by newer approaches to embolic protection such as filtering devices, which do not occlude anterograde flow but rather strain the effluent so as to prevent particulate embolization. (ahajournals.org)
  • embolization
  • 18 By virtue of complete occlusion and poststenting complete graft evacuation, the PercuSurge device theoretically prevents embolization of all particles, no matter how small, as well as of soluble mediators released during stenting. (ahajournals.org)
  • coils
  • The coils replace the balloons Between the end of the '80s and the beginning of the '90s, INR was suddenly revolutioned after the work of two italian physicians: Cesare Gianturco and Guido Guglielmi. (wikipedia.org)
  • Direct CCF may be treated by occlusion of the affected cavernous sinus (coils, balloon, liquid agents), or by reconstruction of the damaged internal carotid artery (stent, coils or liquid agents). (wikipedia.org)
  • Indirect CCF may be treated by occlusion of the affected cavernous sinus with coils, liquid agents or a combination of both. (wikipedia.org)
  • proximal
  • an intermediate tube fixedly connected to the balloon and movably disposed about the annular ring, the intermediate tube and the annular forming a seal, the intermediate tube having a vent hole, wherein a vent path is opened through the intermediate tube and the vent hole when the hole is positioned distal of the annular ring, and the vent path is closed when the hole is positioned proximal of the annular ring. (google.com.au)
  • intensive care
  • Therefore, the purpose of this randomized clinical trial in a less severely affected subgroup of patients is whether by fetoscopic tracheal occlusion, the intensity of postnatal intensive care therapy might be reduced. (clinicaltrials.gov)
  • artery
  • The balloon then blocks the artery, temporarily stopping the blood flow. (isrctn.com)
  • The right ICA angiogram performed soon after the balloon deflation showed no abnormal findings of the arteries in the right carotid artery territory. (scirp.org)
  • High resolution digital subtraction angiography may help in classifying CCF into dural and direct type and thus formulate a strategy to treat it either by a balloon or coil or both with or without preservation of parent ipsilateral carotid artery. (wikipedia.org)
  • Procedure
  • Embolectomy is an emergency procedure often as the last resort because permanent occlusion of a significant blood flow to an organ leads to necrosis. (wikipedia.org)
  • device
  • The device and the balloons were then developed for commercial use between 1967 and 1969 heart surgery by William Rassman, M.D. at Cornell Medical Center and were manufactured by Datascope Corporation in 1969. (wikipedia.org)
  • contrast medium
  • The balloon was inflated and a contrast medium was injected manually to confirm occlusion of the right ICA ( Figure 1(c) ). (scirp.org)
  • The balloon is inflated by an injection of contrast medium via sideport of the pusher and remains in situ while the expanded urothelium heals. (wikipedia.org)
  • blood
  • However, the parts of the body below the balloon are cut off from the normal blood flow and this may result in short- or longer-term problems. (isrctn.com)
  • An aortic occlusion balloon can be placed to stabilize the patient and prevent further blood loss prior to the induction of anesthesia. (wikipedia.org)
  • internal
  • The first treatment was performed in 1970 in Moscow, with the occlusion of an internal carotid to treat a carotid-cavernous fistula. (wikipedia.org)
  • conventional
  • Sixteen patients who were approved by the institutional ethics committee and provided consent to participate in this single-center, prospective study were divided into two groups using a sealed-envelope randomization method: ESD with a balloon wedged in the bulbus duodeni (the balloon [+] group) or conventional ESD with no balloon (the balloon [−] group). (wiley.com)
  • Total
  • Most observers agree that a 90% occlusion is necessary to bring about transformation in the absence of other factors, though a recent article suggests that they may appear as a result of coronary spasm in the absence of total occlusion (see below). (wikipedia.org)
  • There are 800,000 Chronic Total Occlusions (CTO) per year in the USA. (wikipedia.org)
  • technique
  • Page A.C. (2007), "The double wire technique: an improved method for treating challenging ureteroileal anastomotic strictures and occlusions", Br J Radiol. (wikipedia.org)
  • pressure
  • However, since capillary hydrostatic pressure exceeds wedge pressure once the balloon is deflated (to promote a gradient for forward flow), a normal wedge pressure cannot conclusively differentiate between hydrostatic pulmonary edema and ARDS. (wikipedia.org)
  • intra-aort
  • If the patient with cardiogenic shock is not going to be revascularized, aggressive hemodynamic support is warranted, with insertion of an intra-aortic balloon pump if not contraindicated. (wikipedia.org)
  • The intra-aortic balloon pump (IABP) is a mechanical device that increases myocardial oxygen perfusion while at the same time increasing cardiac output. (wikipedia.org)
  • catheter
  • The invention furthermore relates to a method for manufacturing a catheter according to the invention, wherein a piece of tube-like basic material is provided and, by blow molding, a balloon member is made in a mold, which is arranged to the bias material. (google.es)
  • wherein the balloon member is pre-formed such that in an expanded form the relatively stiff sections remain substantially at the same diameter from the center of the catheter as in a non-expanded form and the relatively pliable sections form lobes about said relatively stiff sections. (google.es)
  • Typically this is done by inserting a catheter with an inflatable balloon attached to its tip into an artery, passing the catheter tip beyond the clot, inflating the balloon, and removing the clot by withdrawing the catheter. (wikipedia.org)
  • Catheter embolectomy is also used for aspiration embolectomy, where the thrombus is removed by suction rather than pushing with a balloon. (wikipedia.org)
  • Balloon thrombectomy using a Fogarty catheter may also be used. (wikipedia.org)
  • The pulmonary wedge pressure or PWP, or cross-sectional pressure (also called the pulmonary arterial wedge pressure or PAWP, pulmonary capillary wedge pressure or PCWP, or pulmonary artery occlusion pressure or PAOP), is the pressure measured by wedging a pulmonary catheter with an inflated balloon into a small pulmonary arterial branch. (wikipedia.org)
  • The catheter uses a balloon to expand the artery, and inserts a stent to hold the artery open. (wikipedia.org)
  • suction
  • 19. The ablation apparatus of claim 15 wherein the ablator includes a patch removably attachable to the target tissue, the patch including at least one of an adhesive patch, a tongue patch, a circular patch, a balloon patch, a suction patch, a chemical release patch, a rolled patch, a carbon patch, and a webbed patch. (patentsencyclopedia.com)
  • cavity
  • The balloon member is manufactured in the mold cavity of a mold, the cross-section of which is lobated, by receiving a tube-like partial manufacture inside it and deforming it by blow molding into a shape corresponding to that of the shape of the mold cavity. (google.es)
  • pressure
  • However, since capillary hydrostatic pressure exceeds wedge pressure once the balloon is deflated (to promote a gradient for forward flow), a normal wedge pressure cannot conclusively differentiate between hydrostatic pulmonary edema and ARDS. (wikipedia.org)
  • below
  • Most observers agree that a 90% occlusion is necessary to bring about transformation in the absence of other factors, though a recent article suggests that they may appear as a result of coronary spasm in the absence of total occlusion (see below). (wikipedia.org)
  • Heart
  • There are two major categories of cardiac catheterization: Left heart catheterization allows for direct intervention in cases of coronary artery occlusion. (wikipedia.org)
  • The device and the balloons were then developed for commercial use between 1967 and 1969 heart surgery by William Rassman, M.D. at Cornell Medical Center and were manufactured by Datascope Corporation in 1969. (wikipedia.org)
  • small
  • The balloon member comprises a number of relatively stiff sections extending on a small diameter in a longitudinal. (google.es)
  • The balloon member comprises a number of relatively stiff sections extending on a small diameter in a longitudinal direction of the basic body and relatively pliable sections extending inbetween, wherein the relatively pliable sections form lobes in an expanded state of the balloon member. (google.es)
  • Risk
  • Helium is used because its low viscosity allows it to travel quickly through the long connecting tubes, and has a lower risk than air of causing an embolism should the balloon rupture. (wikipedia.org)
  • benefit
  • Symptomatic patients with less severe carotid occlusion (50-69%) had a smaller benefit, with a NNT of 22 at five years (Barclay). (wikipedia.org)