Yazar "Cihan, HB" seçeneğine göre listele
Listeleniyor 1 - 6 / 6
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Determination of the pericardial to serum myoglobin ratio for the early diagnosis of perioperative myocardial infarction after coronary artery bypass grafting(Academic Press Ltd Elsevier Science Ltd, 2004) Cihan, HB; Gulcan, O; Hazar, A; Turkoz, R; Olmez, EPericardial fluid reflect the composition of cardiac interstitium in myocardial ischemia. This study investigated the value of the pericardial and serum myoglobin (MG) measurements for the diagnosis of perioperative myocardial infarction (MI) after coronary artery bypass grafting (CABG). Postoperative arterial and pericardial blood samples were taken in 64 subjects undergoing elective CABG allocated to two groups according to the 12-lead electrocardiogram (ECG) abnormalities observed during the first postoperative 24 It. Group 1=normal and nonspesific ECG abnormalities, and Group 2=perioperative Q-wave MI. The occurrence of perioperative MI was associated with a dramatic increase in both serum and pericardial cardiac troponin I (CTnI) and MG concentrations. Pericardial concentrations were higher than serum concentrations during the first postoperative 24 h in all subject. However, pericardial/serum CTnI ratio in subjects in Group 2 was not statistically different from Group I at the time of admission to the intensive care unit (ICU) and did not significantly change at time intervals. On the other hand, more than two-fold increase in the pericardial/serum MG ratio was determined for all patients who experienced perioperative Q-wave MI with the lowest value as 2.75, whereas only 1 of 59 patients in group 1 had the ratio higher than 2 with the highest value as 2.15 at the time of admission to the ICU. In conclusion, determination of pericardial/serum MG ratio may be a useful tool for the early diagnosis of the perioperative MI after CABG. (C) 2004 Elsevier Ltd. All rights reserved.Öğe Early postoperative candida colonization in alimentary canal in patients undergoing open heart surgery(Edizioni Minerva Medica, 2005) Alat, I; Kuzucu, Ç; Akpinar, MB; Egri, M; Battaloglu, B; Cihan, HBAim To examine the frequency and factors predisposing to candidiasis in the digestive tract in the early postoperative period after open heart surgery. Methods. One hundred patients undergoing open heart surgery were enrolled in this study. Patients were divided into 2 groups in regard to Candida spp. colonization. Group A means increased Candida spp. colonization after open heart surgery (31/100). Group B indicates unchanged Candida spp. colonization after open heart surgery (69/100). Samples were obtained from both oral and anal inucosa in 3 different periods of operation: 1) preoperatively (stage 1), 2) at the end of the first hour in the intensive care unit (stage 2), 3) 24 hours after operation (stage 3). Findings were compared with both preoperative and intraoperative parameters. For fungal isolation Sabourauds dextrose agar and blood agar were used. Results. In Group A (31), there was a significant relationship between the samples in stage 1 and 2 (p=0.031), and also a significance between stage 1 and 3 (p=0.048). Comparison between Candida positive and negative groups (Group A and B) did not reflect any statistical significance (P>0.05). Conclusion. Candida colonization in the alimentary canal in the early postoperative period after open heart surgery is due to individual preoperative features. However, early postoperative Candida colonization in the digestive tract is not a risk factor for sepsis unless the patient has an additional risk factor leading to prolongation of length of stay in the intensive care unit.Öğe Effect of posterior pericardiotomy on early and late pericardial effusion after valve replacement(Blackwell Publishing, 2005) Erdil, N; Nisanoglu, V; Kosar, F; Erdil, FA; Cihan, HB; Battaloglu, BObjective: Pericardial effusion (PE) after cardiac surgery is frequent. It is more frequently seen after valve replacement or other types of heart surgery. Oral anticoagulants and antiplatelet agents may induce effusion development after open heart surgery. Our objective was to determine the efficiency of posterior pericardiotomy (PP) after cardiac valve operation for reducing the incidence of early and late PE and tamponade. Methods: This prospective randomized study was carried out in 100 consecutive patients undergoing mechanical valve replacement between August 2001 and May 2003 in our institution. Patients were divided into two groups; each group consisted of 50 patients. Longitudinal incision was made parallel and posterior to the left phrenic nerve, extending from the left inferior pulmonary vein to the diaphragm in Group 1. Posterior pericardiotomy was not done in Group 2. Results: Early PE was detected in four patients (8%) and in 19 patients (38%) in Group 1 and Group 2, respectively (p < 0.001). No late PE effusion was developed in Group 1 despite nine (18%) late PE developing in Group 2 (p < 0.003). The rate of delayed pericardial tamponade was lower in Group 1, but this difference was not statistically significant (0% vs 10%; p < 0.056). Conclusion: These findings suggest that PP is an easy, feasible, and beneficial technique for reducing both the occurrence of early and late PE or pericardial tamponade in patients undergoing valve replacement.Öğe Late traumatic aneurysm of the right atrium(Lippincott Williams & Wilkins, 2002) Türköz, R; Cihan, HB; Gülcan, O[Abstract Not Available]Öğe Mitral valve replacement after application of atrial appendix flap in endocarditis with posterior annular abscess(Oxford Univ Press Inc, 2004) Turkoz, R; Gulcan, O; Uguz, E; Cihan, HBIn patients with acute bacterial endocarditis and annular abscess formation, cardiac valve replacement is associated with high perioperative mortality and morbidity. We present two patients who had had infective endocarditis and annular abscess formation in the mural leaflet region. Before replacing the mitral valve, we covered the atrium and annulus with a flap of evaginated left atrial appendix. (C) 2004 Elsevier B.V. All rights reserved.Öğe An unusual cause of hemoptysis: ventriculopulmonary fistula(Edizioni Minerva Medica, 2003) Kuzucu, A; Tandogan, I; Cihan, HB; Gulcan, O; Turkoz, RA 55-year-old man presented with massive hemoptysis following coronary artery bypass grafting and repair of a left ventricular aneurysm. Radiological and bronchoscopic examinations revealed no bronchial cause. The findings of computed tomography (CT) of the chest and echocardiography showed a pseudoaneurysm of the left ventricle. Surgical exploration confirmed that the pseudoaneurysm communicated with the lung parenchyma.
