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Öğe Comparison of early and midterm Results of Kalangos Bioring® versus De Vega annuloplasty in functional tricuspid regurgitatione(John Wiley & Sons Ltd, 2010) Ketenciler, S.; Ege, T.; Sungun, M.; Canbaz, S.; Gurkan, S.; Huseyin, S.; Duran, E.[Abstract Not Available]Öğe Early Results of surgical radiofrequency ablation in patients with atrial fibrillation undergoing open heart surgery(John Wiley & Sons Ltd, 2010) Gurkan, S.; Huseyin, S.; Ege, T.; Canbaz, S.; Canturk, M.; Dikmengil, M.; Duran, E.[Abstract Not Available]Öğe In vitro effects of lidocaine hydrochloride on coronary artery bypass grafts(Edizioni Minerva Medica, 2012) Gur, O.; Ege, T.; Gurkan, S.; Gur, D. Ozkaramanli; Karadag, H.; Cakir, H.; Duran, E.Aim. Coronary artery bypass grafting (CABG) is one of the most common procedures performed to improve blood supply to myocardium. The characteristics of grafts, mechanical stress and pharmacological agents have substantial influence on the short and long term graft patency. Lidocaine is among the most frequently used antiarrhytlunic agents perioperatively. The aim of this study was to evaluate the in vitro effects of lidocaine on internal mammarian artery (IMA), radial artery (RA) and saphenous vein (SV) grafts. Methods. Using standard tissue bath techniques, responses to increasing concentrations of lidocaine hydrochloride were obtained, in segments of IMA, RA and SV grafts. Twenty patients were enrolled in the study with a total number of 48 grafts (16 for IMA, RA and SV grafts each). In vitro lidocaine concentrations between 10(-9)M and 10(-3.5)M were studied to represent therapeutic plasma concentration of 1.5-5 mcg/mL. Results. In IMA and RA grafts, lidocaine hydrochloride caused vasodilatation (40.5 +/- 1.9% and 39.1 +/- 2.6 % respectively) at concentrations between 10(-9) to 10(-7.5) M while causing a dose dependent vasoconstriction response at concentrations above 10(-7.5)M. In SV graft samples, lidocain hydrochloride caused vasodilatation (24.4 +/- 1.9 %) at concentrations between 10(-9) to 10(-7.5) M while causing dose dependent vasoconstriction at concentrations above 10(-7) M. For vasoconstriction effect, mean +/- SD values for E-max were calculated as: 120.1 +/- 6.6% in IMA, 83.35 +/- 5.06% in RA, and 154.0 +/- 13.8% in SV. The vasoconstriction in the SV samples was higher than in the RA and IMA. The mean SD LogEC(50) values were -5.15 +/- 0.27, -5.76 +/- 0.11 and -5.56 +/- 0.19 for SV, IMA and RA grafts respectively.) There was a statiscally significant differences in the Log EC50 values between SV, IMA and RA (P<0.005) Conclusion. Based on the results of our study, we conclude that, increasing doses of lidocaine in the perioperative period may cause vasospasm in IMA, RA and SV grafts. Thus, avoiding high doses may have a role in improving perioperative and long term mortality.Öğe Late manifestation of a pseudoaneurysm in the descending thoracic aorta(Verlag Hans Huber, 2006) Gurkan, S.; Sunar, H.; Canbaz, S.; Duran, E.Rupture of the descending aorta following deceleration trauma is a catastrophic event because it has a high mortality. Prompt surgical treatment is generally considered to be mandatory. However, a few injured patients may leave the hospital with an undiagnosed aortic rupture which may give rise to a chronic pseudoaneurysm. In this report, a 28-year-old man is presented in whom a pseudoaneurysm, of the descending thoracic aortic was diagnosed six months after a car accident.Öğe The reoperations that performed for bleeding after open heart surgery(John Wiley & Sons Ltd, 2010) Huseyin, S.; Gurkan, S.; Canbaz, S.; Ege, T.; Arslan, K.; Dikmengil, M.; Duran, E.[Abstract Not Available]Öğe Surgical management of iatrogenic femoral artery pseudoaneurysms: A 10-year experience(Lithographia, 2013) Huseyin, S.; Yuksel, V; Sivri, N.; Gur, O.; Gurkan, S.; Canbaz, S.; Ege, T.Background: Vascular complications of cardiac catheterization have increased in line with increasing number of percutaneous interventions. Open repair is the standard method of treatment for true and false aneurysms of femoral artery. We report results of patients operated due to femoral artery pseudoaneurysm after cardiac catheterization. Methods: Data from 12,261 patients who underwent percutaneous intervention for cardiac catheterization between January 2003 and January 2013 were evaluated. Diagnosis of pseudoaneurysm was established mainly by doppler ultrasonography in patients with complaints of pain and hematoma at the intervention site. Pseudoaneurysms less than 2 cm in diameter were treated non-operatively and were followed up by regular ultrasonographic examination at the outpatient clinic. Pseudoaneurysms with a diameter of 2 cm or more underwent primary repair. All patients were followed up for one year. Results: We detected 55 (0.44%) patients with femoral artery pseudoaneurysm and 42 of them were operated. The mean age was 60.7 +/- 6.3 years. Thirty nine (94.5%) patients underwent elective surgery, three (5.5%) patients were operated on under emergency conditions. Operation was performed under local anesthesia in 32 patients, under local anesthesia and sedation in eight patients, and under general anesthesia in three patients. Location of the pseudoaneurysm was the superficial femoral artery in 29 (69%), the common femoral artery in nine (21.4%), and the deep femoral artery in four (9.6%) patients. No limb loss occurred, no patient died and no recurrence was detected during the follow up. Conclusions: Performing vascular reconstruction before the rupture of pseudoaneurysm is important in terms of morbidity and mortality. We concluded that surgical repair in pseudoaneurysms larger than 20 mm is safe and essential.
