Yazar "Gurel, Kamil" seçeneğine göre listele

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    Endovascular Treatment of Infrarenal Abdominal Aortic Lesions With or Without Common Iliac Artery Involvement
    (Springer, 2013) Onder, Hakan; Oguzkurt, Levent; Gur, Serkan; Tekbas, Guven; Gurel, Kamil; Coskun, Isa; Ozkan, Ugur
    To evaluate the results of stent placement for obstructive atherosclerotic aortic disease with or without involvement of the common iliac artery. Forty patients had self-expanding stents primarily or after balloon dilatation in the abdominal aorta between January 2005 and May 2011. All patients had trouble walking. Follow-up examinations were performed with clinical visits; these included color Doppler ultrasonography and computed tomographic angiography. Technical, clinical, and hemodynamic success was achieved in all patients. None of the patients underwent reintervention during the follow-up period, which ranged from 3 months to 6 years (median 24 months). Nine complications occurred in six patients. Of the nine complications, four were distal thromboembolisms, which were successfully treated with catheter-directed thrombolysis or anticoagulation therapy. Endovascular treatment of the obstructive aortic disease using self-expanding stents was safe and effective, with high technical success and long-term patency. Thromboembolic complications were high even though direct stenting was considered protective for thromboembolism formation. Particularly for infrarenal aortic stenosis, it can be recommended as the first-line treatment option for patients with obstructive atherosclerotic aortic disease.
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    Endovascular treatment of surgically implanted arterial graft thrombosis by using manual aspiration thrombectomy
    (Turkish Soc Radiology, 2013) Onder, Hakan; Oguzkurt, Levent; Ozkan, Ugur; Gurel, Kamil; Gur, Serkan; Andic, Cagatay; Tekbas, Guven
    The purpose of this study was to present our experience with guiding catheters in manual aspiration thrombectomy of occluded infra-aortic bypass grafts. This material was designed as a guiding catheter but was also used for thrombus aspiration. Six consecutive patients (all male; mean age, 61.0 +/- 5.7 years; range, 54-68 years) who underwent manual aspiration thrombectomy at the discretion of the operator for infra-aortic bypass graft thrombosis between 2002 and 2010 were retrospectively reviewed. The angiographic success described as either stenosis or residual thrombus less than 30% was 67%. Primary patency was 50%, and secondary patency was 66.7%. Additional stents were needed in four lesions of three patients. Manual aspiration thrombectomy is intended to remove both soft acute blood clots and hard organized embolic and thrombotic obstructions. Manual aspiration thrombectomy appears to be a safe and effective method for treating delayed graft thrombosis. This method provides an alternative to surgical thrombectomy, especially for patients who are not good candidates for the surgery.
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    Is unilateral breast enlargement always a sign of cancer?
    (Wiley, 2011) Tekbas, Guven; Oguzkurt, Levent; Gurel, Kamil; Ozkan, Ugur; Gur, Serkan; Onder, Hakan
    Breast swelling is caused by many etiological factors, but should alert central vein occlusion in hemodialysis patients when the permanent vascular access is in the same arm. The swelling of the breast is caused by venous hypertension in the venous plexus draining the breast. Endovascular treatment relieves venous hypertension and related clinical signs. Additional diagnostic workup or invasive interventions such as a biopsy should be avoided in such patients, as diagnosis is straightforward with the presence of a functioning arteriovenous fistula in the same arm.
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    Prilocain-induced Methemoglobinemia after Endovenous Laser Ablation
    (Elsevier Science Inc, 2010) Tekbas, Guven; Oguzkurt, Levent; Ozkan, Ugur; Gurel, Kamil
    [Abstract Not Available]
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    US-guided percutaneous thrombin injection of postcatheterization pseudoaneurysms
    (Turkish Soc Radiology, 2012) Gurel, Kamil; Gur, Serkan; Ozkan, Ugur; Tekbas, Guven; Onder, Hakan; Oguzkurt, Levent
    PURPOSE This study retrospectively evaluated ultrasonography-guided (US-guided) percutaneous thrombin injection for the treatment of postcatheterization femoral and brachial artery pseudoaneurysms. MATERIALS AND METHODS Fifty-five patients with postcatheterization femoral artery (n=53) or brachial artery (n=2) pseudoaneurysms were treated using US-guided human thrombin (500 IU/mL) injection. Pseudoaneurysm size, thrombin dose, therapy outcome, and complications were documented. Follow-up color Doppler US was performed 7 and 30 days after treatment. Short-duration supplemental compression was applied to six patients at the first week follow-up examination after a reinjection of thrombin had failed. RESULTS Mean pseudoaneurysm volume was 20.3 +/- 18.7 cm(3). The mean injected thrombin dose was 478 +/- 238 IU. Thirty-eight (69.1%) of the 55 pseudoaneurysms were thrombosed with a single injection, and 11 of 17 pseudoaneurysms were thrombosed after a second injection. All (100%) of the 41 pseudoaneurysms that were diagnosed within the first two weeks of postcatheterization were successfully treated. The overall primary success rate was 89.1% (49 of 55 pseudoaneurysms). Supplemental compression promoted thrombosis in four of the six patients who had treatment failure with thrombin injection. The secondary success rate was 96.4% (53 of 55 pseudoaneurysms). There were no complications. CONCLUSION US-guided thrombin injection was most successful within the first two weeks, and the supplemental compression might aid in the closure of partially thrombosed pseudoaneurysms.
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    US-guided retrograde tibial artery puncture for recanalization of complex infrainguinal arterial occlusions
    (Aves, 2013) Gur, Serkan; Oguzkurt, Levent; Gurel, Kamil; Tekbas, Guven; Onder, Hakan
    PURPOSE We aimed to describe the technical aspects and outcomes of the retrograde tibial approach and balloon predilation for recanalization of complex infrainguinal arterial occlusions and determine the efficacy of this approach in minimizing failure rates. MATERIALS AND METHODS Between September 2006 and April 2011, antegrade revascularization failed in 22 limbs with complex total occlusions within the infrainguinal arterial territory For each of these antegrade failure cases in 22 patients, a retrograde tibial puncture had been attempted. Percutaneous recanalization and predilation were initially performed through tibial access, and final balloon dilatation or stent placement was performed from antegrade femoral access. The patients were followed up for functionality and wound healing. RESULTS Access from the tibial artery was successfully obtained for all patients (100%). Successful recanalization was obtained in 18 patients (82%). Retrograde access was performed from the anterior tibial/dorsalis pedis artery in 12 patients and posterior tibial artery in 10 patients. One major and one minor complications were documented. CONCLUSION Retrograde tibial recanalization technique in the infrainguinal complex arterial occlusion safely increases the success rates of percutaneous recanalization in the failed traditional approach and is a feasible endovascular option to avoid more invasive, time-consuming, and high-risk procedures.