The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform

Aimee K Armstrong - One of the best experts on this subject based on the ideXlab platform.

  • superior vena cava Thrombectomy with the x sizer Catheter system in a child with fontan palliation
    Catheterization and Cardiovascular Interventions, 2007
    Co-Authors: Jeffrey G Gossett, Albert P Rocchini, Aimee K Armstrong
    Abstract:

    A 4-year-old female with hypoplastic left heart syndrome and Fontan palliation presented with severe neurologic impairment from thrombosis of the superior vena cava (SVC). She underwent successful SVC Thrombectomy with the X-SIZER® Thrombectomy Catheter System, followed by balloon angioplasty. She demonstrated rapid improvement in her neurologic deficits after the procedure. This represents the first published use of the X-SIZER in a child and its first published use for SVC Thrombectomy. © 2006 Wiley-Liss, Inc.

  • Superior vena cava Thrombectomy with the X‐SIZER® Catheter system in a child with Fontan palliation
    Catheterization and Cardiovascular Interventions, 2007
    Co-Authors: Jeffrey G Gossett, Albert P Rocchini, Aimee K Armstrong
    Abstract:

    A 4-year-old female with hypoplastic left heart syndrome and Fontan palliation presented with severe neurologic impairment from thrombosis of the superior vena cava (SVC). She underwent successful SVC Thrombectomy with the X-SIZER® Thrombectomy Catheter System, followed by balloon angioplasty. She demonstrated rapid improvement in her neurologic deficits after the procedure. This represents the first published use of the X-SIZER in a child and its first published use for SVC Thrombectomy. © 2006 Wiley-Liss, Inc.

Masakiyo Nobuyoshi - One of the best experts on this subject based on the ideXlab platform.

  • Aspiration Thrombectomy of a massive thrombotic embolus in acute myocardial infarction caused by coronary embolism.
    International Heart Journal, 2007
    Co-Authors: Koyu Sakai, Katsumi Inoue, Masakiyo Nobuyoshi
    Abstract:

    Coronary embolism is one of the less common causes of acute myocardial infarction (AMI). We describe a 72-year-old man with atrial fibrillation having an AMI, in whom a massive intracoronary thrombus of the right coronary artery was successfully removed by aspiration via a Thrombectomy Catheter, achieving successful reperfusion with a complete resolution of ST-segment elevation. The appearance of the aspirated material suggested coronary embolism was the cause of the AMI. It is concluded aspiration Thrombectomy is a feasible and safe approach for treating coronary embolism.

  • Thrombectomy with angiojet Catheter in native coronary arteries for patients with acute or recent myocardial infarction
    American Journal of Cardiology, 1999
    Co-Authors: Yoshihisa Nakagawa, Takeshi Kimura, Shusuke Matsuo, Hiroyoshi Yokoi, Takashi Tamura, Naoya Hamasaki, Hideyuki Nosaka, Masakiyo Nobuyoshi
    Abstract:

    Abstract The AngioJet Thrombectomy Catheter removes thrombi by rheolytic fragmentation and suction. The purpose of this study was to identify the efficacy and safety of this new device. Myocardial infarction (MI) is associated with intracoronary thrombus. Intracoronary thrombus has been identified as a risk factor of unfavorable outcome after percutaneous transluminal coronary angioplasty. To what extent the AngioJet is applicable or effective for acute or recent MI in native coronary artery is not clear. Thrombectomy with the AngioJet was attempted in 31 patients with 31 native coronary arteries selected from 304 patients with acute or recent MI. Follow-up angiography was performed at 3 to 6 months. Procedure success was achieved in 29 patients (94%). Adjunctive balloon angioplasty was performed after AngioJet Thrombectomy in 30 patients (97%), and in only 1 patient (3%) AngioJet Thrombectomy was the sole procedure. Subsequent stenting after balloon angioplasty was attempted successfully in 12 patients (40%) without thrombotic complications. Thrombolysis In Myocardial Infarction trial flow grading increased from 0.70 ± 0.97 before to 2.61 ± 0.88 after AngioJet Thrombectomy (p

  • Update on Extractional Thrombectomy Catheter, AngioJet™
    Journal of Interventional Cardiology, 1998
    Co-Authors: Masakiyo Nobuyoshi, Yoshihisa Nakagawa
    Abstract:

    Acute coronary syndromes are associated with intracoronary thrombus, which has been a risk factor for unfavorable outcome after percutaneous transluminal coronary angioplasty (PTCA). The AngioJet (Possis Medical, Inc. Minneapolis, MN, USA) Catheter was developed to remove intravascular thrombus by hydrostatic suction without dilatation of the underlying plaque. It prepares the vessel for subsequent safe and uncomplicated intervention, including stenting. In acute total occlusion in acute myocardial infarction, the amount of thrombus, the severity of the underlying stenosis, or the tortuosity of the artery cannot be evaluated accurately, so there is a possibility of failure to pass the AngioJet Catheter through the lesion. In spite of these limitations, the AngioJet still could be used successfully to remove thrombus from coronary arteries, and thrombus removal makes subsequent stenting uncomplicated. This successful experience supports a call for a larger scale prospective study of this Thrombectomy approach.

Jeffrey G Gossett - One of the best experts on this subject based on the ideXlab platform.

  • superior vena cava Thrombectomy with the x sizer Catheter system in a child with fontan palliation
    Catheterization and Cardiovascular Interventions, 2007
    Co-Authors: Jeffrey G Gossett, Albert P Rocchini, Aimee K Armstrong
    Abstract:

    A 4-year-old female with hypoplastic left heart syndrome and Fontan palliation presented with severe neurologic impairment from thrombosis of the superior vena cava (SVC). She underwent successful SVC Thrombectomy with the X-SIZER® Thrombectomy Catheter System, followed by balloon angioplasty. She demonstrated rapid improvement in her neurologic deficits after the procedure. This represents the first published use of the X-SIZER in a child and its first published use for SVC Thrombectomy. © 2006 Wiley-Liss, Inc.

  • Superior vena cava Thrombectomy with the X‐SIZER® Catheter system in a child with Fontan palliation
    Catheterization and Cardiovascular Interventions, 2007
    Co-Authors: Jeffrey G Gossett, Albert P Rocchini, Aimee K Armstrong
    Abstract:

    A 4-year-old female with hypoplastic left heart syndrome and Fontan palliation presented with severe neurologic impairment from thrombosis of the superior vena cava (SVC). She underwent successful SVC Thrombectomy with the X-SIZER® Thrombectomy Catheter System, followed by balloon angioplasty. She demonstrated rapid improvement in her neurologic deficits after the procedure. This represents the first published use of the X-SIZER in a child and its first published use for SVC Thrombectomy. © 2006 Wiley-Liss, Inc.

Teiyu Yamauchi - One of the best experts on this subject based on the ideXlab platform.

  • Saline-Jet Aspiration Thrombectomy Catheter
    Acta Radiologica, 2010
    Co-Authors: Teiyu Yamauchi, S Furui, Masatoshi Okazaki, Hideyuki Higashihara, Osamu Matsui, T. Sakamoto, Toshihiro Tanaka, Sachio Kuribayashi, M. Takamiya, Satoshi Sawada
    Abstract:

    Purpose: To evaluate hydraulic Thrombectomy using a saline-jet aspiration Thrombectomy Catheter in the treatment of venous thrombosis.Material and Methods: Ten patients underwent 12 hydraulic Thrombectomy procedures using 2.7 or 4.0 mm Catheters. The site of the thrombus was either central, peripheral or in portal veins. The age of the thrombi was between 2 and 60 days (mean 19.7 days). The efficacy of hydraulic Thrombectomy was evaluated based on the aspirated thrombus ratio (ATR), i.e. the volume of the thrombus aspirated divided by the volume of the thrombus before Thrombectomy. ATR was estimated by comparing the angiograms of the lesion before and after Thrombectomy.Results: Soft thrombi were usually rapidly removed. ATR was >2/3 in 3, 2/3-1/3 in 2, 1/3-0 in 4, and 0 in 1 patient. The activation time of the injector was 23–224 s (mean 102 s) and the volume of aspirated blood was 30–680 ml (mean 250 ml). Compensatory infusion of saline was performed for blood loss, and 400 ml of packed red blood cells ...

  • Hydraulic analysis of the functional properties of saline-jet aspiration Thrombectomy Catheters
    Physics in Medicine and Biology, 1999
    Co-Authors: Teiyu Yamauchi, S Furui, Hiroshi Kohtake, Arimi Harasawa, Tatsuro Kaminaga, Hiroko Tanaka, Tohru Takeshita
    Abstract:

    The purpose of this paper is to clarify the functional properties of a saline-jet aspiration Thrombectomy Catheter based on hydraulics. This Catheter, developed by the authors, aspirates intravascular thrombi by means of the effect of a high-speed jet. We have derived the relationships between Qs, Qa and pn, where Qs is the water supply rate, Qa is the water aspiration rate and pn is the negative pressure created in the distal lumen of the Catheter. The relationships are represented by simple equations using c1 and c2, where c1 and c2 are coefficients proper to the Catheter. We have obtained c1 and c2 experimentally for three types of Catheter with different distal shapes. Two practical conclusions are derived from this study. First, making a short taper at the distal end increases the negative pressure created and is advantageous for thrombus aspiration. Second, making the diameter of the inner tube and nozzle smaller is essential for improving the aspiration ability of the Catheter.

  • Emergent right coronary artery Thrombectomy with a jet aspiration Thrombectomy Catheter
    CardioVascular and Interventional Radiology, 1999
    Co-Authors: Teiyu Yamauchi, S Furui, Takaaki Isshiki, Hideki Toyoizumi, Hiroshi Kohtake, Kohji Takeshita, Shigeru Suzuki, Arimi Harasawa, Yasushi Sasaki
    Abstract:

    A saline-jet aspiration Thrombectomy (JAT) Catheter was used in a patient with acute myocardial infarction. A right coronary arteriogram showed complete thrombotic occlusion at the proximal segment. With this Catheter the thrombus was removed without complications in 5 sec. The patient underwent percutaneous transluminal coronary angioplasty and placement of a Palmaz-Schatz stent after successful Thrombectomy. Thrombectomy with a JAT Catheter was very useful in this patient.

  • Saline-jet aspiration Thrombectomy Catheter. Clinical results in patients with venous thrombosis.
    Acta Radiologica, 1999
    Co-Authors: Teiyu Yamauchi, S Furui, Masatoshi Okazaki, Hideyuki Higashihara, Osamu Matsui, T. Sakamoto, Toshihiro Tanaka, Sachio Kuribayashi, M. Takamiya, Satoshi Sawada
    Abstract:

    Purpose: To evaluate hydraulic Thrombectomy using a saline-jet aspiration Thrombectomy Catheter in the treatment of venous thrombosis. Material and Methods: Ten patients underwent 12 hydraulic Thrombectomy procedures using 2.7 or 4.0 mm Catheters. The site of the thrombus was either central, peripheral or in portal veins. The age of the thrombi was between 2 and 60 days (mean 19.7 days). The efficacy of hydraulic Thrombectomy was evaluated based on the aspirated thrombus ratio (ATR), i.e. the volume of the thrombus aspirated divided by the volume of the thrombus before Thrombectomy. ATR was estimated by comparing the angiograms of the lesion before and after Thrombectomy. Results: Soft thrombi were usually rapidly removed. ATR was >2/3 in 3, 2/3-1/3 in 2, 1/3-0 in 4, and 0 in 1 patient. The activation time of the injector was 23-224 s (mean 102 s) and the volume of aspirated blood was 30-680 ml (mean 250 ml). Compensatory infusion of saline was performed for blood loss, and 400 ml of packed red blood cells was transfused in 1 patient. No complications of the hydraulic Thrombectomy were observed. Thrombolysis or additional treatment were performed in 9 patients. Conclusion: Hydraulic Thrombectomy using this Catheter can contribute to the treatment of venous thrombosis.

Matjaž Bunc - One of the best experts on this subject based on the ideXlab platform.

  • Superior Mesenteric Artery Embolism Treated with Percutaneous Mechanical Thrombectomy
    CardioVascular and Interventional Radiology, 2011
    Co-Authors: Peter Popovič, Dimitrij Kuhelj, Matjaž Bunc
    Abstract:

    A case of acute superior mesenteric artery embolism treated with percutaneous thrombus aspiration is described. A 63-year-old man with chronic atrial fibrillation was admitted to the hospital with progressive abdominal pain. Computed tomography angiography revealed an occlusion of the distal part of the superior mesenteric artery. The patient was effectively treated using transaxillary percutaneous mechanical Thrombectomy using a 6F Aspirex Thrombectomy Catheter.

  • massive pulmonary embolism percutaneous emergency treatment using an aspirex Thrombectomy Catheter
    CardioVascular and Interventional Radiology, 2010
    Co-Authors: Peter Popovič, Matjaž Bunc
    Abstract:

    Massive pulmonary embolism (PE) is a life-threatening condition with a high early mortality rate caused by acute right ventricular failure and cardiogenic shock. A 51-year-old woman with a massive PE and contraindication for thrombolytic therapy was treated with percutaneous mechanical Thrombectomy using an Aspirex 11F Catheter (Straub Medical AG, Wangs, Switzerland). The procedure was successfully performed and showed a good immediate angiographic result. The patient made a full recovery from the acute episode and was discharged on heparin treatment. Our case report indicates that in patients with contraindications to systemic thrombolysis, Catheter Thrombectomy may constitute a life-saving intervention for massive PE.