Gokhan Ilhan

Recep Tayyip Erdoğan Üniversitesi, Çorum, Rize, Turkey

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Publications (32)38.27 Total impact


  • No preview · Dataset · Nov 2015

  • No preview · Dataset · Nov 2015
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    Berkan Ozpak · Gokhan Ilhan
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    ABSTRACT: Introduction: To evaluate treatment outcomes of patients diagnosed with Takayasu arteritis (TA), who underwent extra-anatomical bypass surgery using biosynthetic grafts. Methods: This retrospective study included 12 TA patients considered eligible for surgical revascularization between January 2005 and May 2011 from two vascular surgical units in Turkey. Control group consisted of 12 peripheral arterial disease patients who underwent supra-aortic extra-anatomical bypass surgery using polytetrafluoroethylene (PTFE) graft. Preoperatively, all patients underwent Doppler ultrasound and arteriography. Patients were examined every 3 months for clinical findings after monthly follow-up during the first 6 months, first, second and third year controls. Graft patencies were evaluated by Doppler ultrasound at each visit. Results: The mean age was 38.6 ± 4.2 years and the mean follow-up time was 37.9 ± 6.9 months for the study group. In Biosynthetic Group, subclavian-subclavian (n = 2), axillo-axillary (n =9) and carotico-subclavian (n = 1) bypass operations were performed. In PTFE group, subclavian-subclavian (n = 3), axillo-axillary (n = 7), subclavian-left ulnar (n = 1), subclavian-distal brachial (n = 1) bypass operations were performed. Graft occlusion occurred in four patients in PTFE Group during follow-up period. These occlusive lesions were treated successfully according to the routine of each vascular unit. Conclusion: We concluded that in inflammatory diseases like TA, biosynthetic grafts have promising patency, postoperative clinical findings and lower rates of complications requiring reintervention in mid-term.
    Preview · Article · Sep 2015
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    ABSTRACT: Abstract Introduction: To evaluate treatment outcomes of patients diagnosed with Takayasu arteritis (TA), who underwent extra-anatomical bypass surgery using biosynthetic grafts. Methods: This retrospective study included 12 TA patients considered eligible for surgical revascularization between January 2005 and May 2011 from two vascular surgical units in Turkey.Control group consisted of 12 peripheral arterial disease patients who underwent supra-aortic extra-anatomical bypass surgery using polytetrafluoroethylene (PTFE) graft. Preoperatively, all patients underwent Doppler ultrasound and arteriography. Patients were examined every 3 months for clinical findings after monthly follow-up during the first 6 months, first, second and third year controls. Graft patencies were evaluated by Doppler ultrasound at each visit. Results: The mean age was 38.6 ± 4.2 years and the mean follow-up time was 37.9 ± 6.9 months for the study group. In Biosynthetic Group, subclavian-subclavian (n = 2), axillo-axillary (n = =9) and carotico-subclavian (n = 1) bypass operations were performed. In PTFE group, subclavian-subclavian (n = 3), axillo-axillary (n = 7), subclavian-left ulnar (n = 1), subclavian-distal brachial (n = 1) bypass operations were performed. Graft occlusion occurred in four patients in PTFE Group during follow-up period. These occlusive lesions were treated successfully according to the routine of each vascular unit. Conclusion: We concluded that in inflammatory diseases like TA, biosynthetic grafts havepromising patency, postoperative clinical findings and lower rates of complications requiringreintervention in mid-term.
    No preview · Article · Jul 2015
  • Berkan Ozpak · Gokhan Ilhan · Barcin Ozcem · Hakan Kara
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    ABSTRACT: Background Anticoagulant treatment is recently being replaced by more aggressive endovascular modalities in the management of acute deep vein thrombosis (DVT). These techniques have been promoted to improve thrombus removal, prolong venous patency, prevent venous insufficiency, and reduce post thrombotic syndrome. The aim of the present study is to overview the short-term results of percutaneous mechanical thrombectomy (PMT) for acute DVT. Methods This retrospective study is based on data from 21 acute DVT patients treated with PMT in the cardiovascular surgery department of a tertiary care center. The average age of patients was 48.76 (range: 27-69). Retrievable inferior vena cava (IVC) filters were administered via right subclavian vein or contralateral femoral vein and withdrawn after PMT procedure. Low-molecular-weight heparin (LMWH) was used for anticoagulation in the first 10 days postoperatively. Results Venous patency was restored in 20/21 patients (95%) at first month, and in 18/21 patients (85%) at sixth month. Valvular competency was preserved in 16 patients (76%). Balloon angioplasty with or without stent implantation was performed in three patients with stenosis in femoral or iliac veins. Conclusion In conclusion, PMT is a safe and effective treatment modality that can be used alone in the treatment of acute DVT of lower extremities in selected cases. Further controlled trials on larger series and reports on long-term results are warranted to document the actual therapeutic potential and safety this endovascular procedure. Georg Thieme Verlag KG Stuttgart · New York.
    No preview · Article · Jun 2015 · The Thoracic and Cardiovascular Surgeon
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    ABSTRACT: Aortic occlusion is rare catastophic pathology with high rates of mortality and severe morbidity. In this study, we aimed to share our experience in the management of aortic occlusion and to assess the outcomes of extra-anatomic bypass procedures. Eighteen patients who had undergone extra-anatomic bypass interventions in the cardiovascular surgery department of our tertiary care center between July 2009 and May 2013 were retrospectively evaluated. All patients were preoperatively assessed with angiograms (conventional, computed tomography, or magnetic resonance angiography) and Doppler ultrasonography. Operations consisted of bilateral femoral thromboembolectomy, axillobifemoral extra-anatomic bypass and femoropopliteal bypass and were performed on an emergency basis. In all patients during early postoperative period successful revascularization outcomes were obtained; however, one of these operated patients died on the 10th postoperative due to multiorgan failure. The patients were followed up for a mean duration of 21.2±9.4 months (range, 6 to 36 months). Amputation was not warranted for any patient during postoperative follow-up. To conclude, acute aortic occlusion is a rare but devastating event and is linked with substantial morbidity and mortality in spite of the recent advances in critical care and vascular surgery. Our results have shown that these hazardous outcomes may be minimized and better rates of graft patency may be achieved with extra-anatomic bypass techniques tailored according to the patient.
    Full-text · Article · Jun 2015 · Korean Journal of Thoracic and Cardiovascular Surgery
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    Gokhan Ilhan · Berkan Ozpak · Tevfik Gunes · Mert Kestelli

    Full-text · Article · Feb 2015 · Journal of Thoracic and Cardiovascular Surgery
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    Hakan Kara · Kemal Uzun · Gokhan Ilhan · Burcin Abud
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    ABSTRACT: Axillary-subclavian vein thrombosis or Paget-Schroetter syndrome is an uncommon deep vein thrombosis usually caused by excessive and repetitive upper limb activity. It may cause post-trombotic syndrome, leading to a significant disability, unless treated early and properly. It is most often the consequence of a chronic compression of the subclavian vein at the level of the thoracic outlet. In this article, we present a 24-year-old male case with complaints of swelling, tightness, heaviness in the right half of his neck, upper arm, and right precordial area after repetitive exercises. No etiological factors such as trauma, venous catheter intervention, malignancy, hematologic disorder, or history of any chronic disease were described. Venous Doppler ultrasound revealed subclavian-axillary vein thrombosis. With early thrombolytic therapy, the symptoms relieved and venous patency was maintained.
    Preview · Article · Oct 2014 · Turkish Journal of Thoracic and Cardiovascular Surgery

  • No preview · Article · May 2014 · Therapeutic Advances in Cardiovascular Disease
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    ABSTRACT: The results of surgical approaches are unsatisfactory in patients with a distal arterial bed that is ineligible for revascularization. In this retrospective study, we investigated outcomes in patients who underwent surgical interventions that are reported to induce angiogenesis. 6 patients diagnosed with thromboangiitis obliterans were included in this study. Of these 6 patients, 2 underwent femoropopliteal bypass surgery using reversed great saphenous vein as a conduit. The other 4 underwent ascending venous arterialization (bypass from the popliteal artery to the great saphenous vein at the level of medial malleolus, using reversed great saphenous vein). During the early postoperative period, all of the reversed saphenous vein grafts were occluded. The mean postoperative ankle-brachial index increased from 0.33 to 0.83. During the postoperative period, intermittent claudication disappeared in all patients. Angiograms taken during the postoperative period showed evidence of neovascularization when compared to those taken during preoperative evaluation. Wound healing is an inflammatory process that simultaneously activates angiogenesis. We propose that the improved ankle-brachial index values and neovascularization shown in our patients were associated with this inflammatory process.
    Full-text · Article · Mar 2014 · Asian cardiovascular & thoracic annals
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    Full-text · Article · Jan 2014 · European journal of cardio-thoracic surgery: official journal of the European Association for Cardio-thoracic Surgery
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    Full-text · Article · Sep 2013 · Journal of Cardiothoracic Surgery
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    Full-text · Article · Sep 2013 · Journal of Cardiothoracic Surgery
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    Full-text · Article · Sep 2013 · Journal of Cardiothoracic Surgery
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    Full-text · Article · Sep 2013 · Journal of Cardiothoracic Surgery
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    Full-text · Article · Sep 2013 · Journal of Cardiothoracic Surgery
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    ABSTRACT: OBJECTIVES Hyperbaric oxygen (HBO) has been shown to be effective in preventing neurological injuries in animal models of ischaemia, whereas iloprost (IL) prevents ischaemia-related mitochondrial dysfunction and reduces infarction size after focal cerebral ischaemia in animal models. The aim of the present study was to investigate the effect of combined HBO and IL treatment on spinal cord ischaemia–reperfusion (IR) injury by neurological, histopathological and biochemical methods in an experimental study.
    Full-text · Article · Aug 2013 · European journal of cardio-thoracic surgery: official journal of the European Association for Cardio-thoracic Surgery
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    ABSTRACT: Tianeptine is a selective serotonin reuptake enhancer, possessing strong antidepressant and anxiolytic properties. Its relative lack of sedative, anticholinergic and cardiovascular side effects makes it a highly tolerable substance of abuse. However, physical dependence quickly develops and withdrawal symptoms are common. Abusers in Georgia and Armenia use tianeptine by intravenous injection. Drug abusing behaviour usually starts during puberty, since it stems from psychologic, social and cultural circumstances. Sociodemographic studies show that drug abusing behaviour in Turkey varies according to region and substance. This paper investigates differences between Georgian foreigners and the local population in the eastern Black Sea region in terms of tianeptine abuse and discusses complications resulting from intravenous injection of tiapentine.
    No preview · Article · Apr 2013
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    ABSTRACT: The objective of this study was to demonstrate the role of major surgery on patients presenting with vascular complications after lumbar disc surgery. A retrospective analysis of seven cases treated surgically in two tertiary care centers between August 2001 and June 2010 was carried out. The average age of patients (three women and four men) was 35.8 ± 7.2. The most common vessel injured was the left common iliac artery occurring in five patients (71.4%), followed by the left common iliac vein injury detected in two patients (28.5%). Transperitoneal approach was preferred in all cases and primary suturing, graft interposition and end-to-end anastomoses were the surgical methods used for the repair of vascular injury. No mortality was seen in our series during the follow-up period of two years; however, the most noteworthy complication was paraplegia occurring in one patient. Vascular injury occurring at lumbar discus surgery has a considerable potential for morbidity and mortality. A high index of suspicion is necessary for early diagnosis. In hemodynamically instable patients, the transperitoneal approach provides better exposure and more effective control of hemorrhage, while minimal angiography and endovascular intervention should be preserved for hemodynamically stable cases.
    Full-text · Article · Mar 2013 · Vascular
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    ABSTRACT: Aim: The aim of the study was to evaluate the role of intracoronary shunt during off-pump coronary artery bypass surgery in patients with isolated left anterior descending coronary artery lesion. Methods: Forty patients undergoing off-pump coronary artery bypass using the left internal mammary artery to bypass the left anterior descending coronary artery were randomly assigned to have the bypass performed with intracoronary shunt or by occlusive snaring. Potential damage from the shunt or from snaring was monitored by clinical follow-up, monitoring of cardiac enzymes (cardiac troponin I, CK, CK-MB), electrocardiography, and echocardiography before and 24 h. after the surgery. Left ventricular myocardial biopsies were performed during surgery for histopathological analysis. Results: None of the patients in this study died during or after the surgery. Duration of the anastomosis was significantly longer in the shunt group. No significant difference concerning the preoperative and postoperative CK levels between groups. The preoperative CK-MB levels of the groups were not significantly different, whereas postoperative levels was significantly lower in the shunt group. The preoperative troponin I levels of the groups were not significantly different, whereas postoperative levels was significantly higher in the snare group. Myocardial edema was significantly less in shunt group compared with snare group. There were no electrocardiographic abnormalities, severe CK-MB elevation, or hemodynamic deterioration after the operation in both groups. Conclusion: Intracoronary shunt may have beneficial effects due to the reduction of postoperative troponin I levels and myocardial edema during grafting of the left anterior descending coronary artery. However, further trials need to be performed for the documentation of their impacts precisely.
    Full-text · Article · Jan 2013 · The Journal of cardiovascular surgery

Publication Stats

55 Citations
38.27 Total Impact Points

Institutions

  • 2012-2015
    • Recep Tayyip Erdoğan Üniversitesi
      Çorum, Rize, Turkey
  • 2012-2014
    • Rize University
      Çorum, Rize, Turkey
  • 2013
    • Izmir Katip Celebi Universitesi
      Temnos, İzmir, Turkey
  • 2008
    • Izmir Bozkaya Research and Education Hospital
      Ismir, İzmir, Turkey
    • Ankara Atatürk Training and Research Hospital
      Engüri, Ankara, Turkey
    • Ataturk Chest Diseases and Chest Surgery Education and Research Hospital
      Engüri, Ankara, Turkey