Publications by authors named "Bahar Oc"

Background: Cornelia de Lange syndrome (CdLS) is a congenital multisystemic genetic disorder. The expected lifespan of children with this disorder has been prolonged in parallel with the advances in medicine in recent years. However, they still more frequently undergo cardiac surgery.

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Aim: To compare the effects of sevoflurane and propofol anesthesia on perioperative cerebral oxygenation in patients undergoing carotid endarterectomy (CEA) under general anesthesia by using near-infrared spectroscopy (NIRS) monitoring.

Material And Methods: Institutional approval was obtained, and the perioperative data of 33 patients undergoing CEA were retrospectively evaluated. The study groups were organized according to the anesthesia drugs used for maintenance: sevoflurane (n=17) and propofol (n=16).

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Objective: The aim of this animal study was to investigate the short and long-term local histomorphologic effects and the utility of intra-articular application of ibuprofen.

Methods: Forty-six Wistar Albino rats were used in the study. The rats were randomized into 5 groups of 8 and a sham group of 6.

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Background/aims: Cardiac surgery and diabetes are major causes of acute kidney injury (AKI). We aimed to investigate the value of urinary neutrophil gelatinase-associated lipocalin (NGAL) and serum cystatin C, as early biomarkers for prediction of AKI in diabetic and non-diabetic adult patients undergoing cardiac surgery.

Methods: 15 non-diabetic and 15 diabetic adult patients undergoing cardiac surgery were enrolled.

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Aim: To assess the effects of propofol and sevoflurane on the contraction elicited by dopamine, adrenaline and noradrenaline on isolated human umbilical arteries.

Methods: Umbilical arteries were cut into endothelium-denuded spiral strips and suspended in organ baths containing Krebs-Henseleit solution bubbled with O2 +CO2 mixture. Control contraction to phenylephrine (10(-5)  M) was recorded.

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Background: Peri-operative management of infants with trisomy 18 syndrome is challenging due to various congenital cardiac and facial anomalies.

Case Report: We report the anaesthetic management of a 13-day-old neonate with 1 540 g body weight, undergoing closure of patent ductus arteriosus and pulmonary artery banding. Anaesthesia was induced with sevoflurane, fentanyl and rocuronium.

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Purpose: Endovenous laser ablation (EVLA) for superficial venous insufficiency is traditionally performed under tumescent local anesthesia as day case surgery. The aim of this study is to evaluate the feasibility of general anesthesia in addition to tumescent anesthesia in patients undergoing EVLA.

Methods: The anesthesia and clinical registration records of 341 extremities of 300 adult patients were reviewed and analyzed retrospectively.

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Cardiac sarcomas are rare malignant tumors. Angiosarcoma is the most common cardiac sarcoma and is present in up to 33% of cases. Angiosarcomas have a poor prognosis, with a short survival expectancy.

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Patent ductus arteriosus (PDA) is an important problem in premature infants. Extremely low birth weight infants (ELBWI) are so fragile with respect to surgical stress that minimally invasive procedures are required. We report 26 ELBWI cases with PDA who underwent surgical closure.

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Primary spontaneous coronary artery dissection is one of the rare causes of acute myocardial infarction and is mostly fatal. Previous studies report that it is mostly seen in middle-aged women in the last trimester of pregnancy and early postpartum period. Clinical presentation of the disease is variable in pattern, and its severity is related to extent and development rate of dissection.

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Hydatid cyst is a serious endemic parasitic disease found in cattle-raising areas of the world. Cardiac hydatid cysts are rare and appear in 0.5% to 2% of hydatid cyst cases.

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Background: There are few data on the effects of anesthesia and cardiopulmonary bypass (CPB) on perioperative renal function in children with cyanotic congenital heart disease undergoing open heart surgery. This study aims to investigate the perioperative renal function in cyanotic versus acyanotic children undergoing sevoflurane anesthesia for open heart surgery.

Methods: After receiving ethical committee approval, 12 acyanotic patients (preoperative oxygen saturation: SaO(2) > 85%) and 12 cyanotic children (SaO(2) < 85%) were included.

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Aim: The aim of this study was to compare the nutritional biochemical parameters, prealbumin levels, and bioimpedance analysis parameters of adult and elderly hemodialysis (HD) patients.

Methods: This prospective cross-sectional study included 50 adult HD patients (42.0 % female).

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Nitroglycerin (NTG) reduces the anticoagulant effects of heparin and may lead to heparin resistance. Fresh frozen plasma (FFP) and antithrombin III (ATIII) may be used for the treatment of heparin resistance. We aimed to compare the effects of FFP and ATIII on heparin requirement, coagulation parameters, and bleeding in patients undergoing coronary artery bypass graft surgery (CABGS) with moderate dose of intraoperative NTG infusion.

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Background: Ingrown toenails are common and lead to significant morbidity.

Objective: This retrospective study was aimed at evaluation of our new surgical technique of lateral foldplasty with limited lateral matrix resection in some cases for the management of ingrown toenails with regard to recurrence rates, spicule formation, local infection, partial flap necrosis, and cosmetic outcome.

Methods & Materials: Thirty-two patients with 52 ingrown nails were included in this study.

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Atrial fibrillation (AF) is a common arrhythmia, after cardiac surgery, and it is associated with a twofold increase in cardiovascular mortality and morbidity. Reperfusion injury and inflammation associated with cardiac surgery are thought to be involved in its pathogenesis. Heat shock proteins (HSPs) are a family of chaperone proteins which assist in preservation of cellular integrity by maintaining proteins in their correctly folded state.

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Objective: To evaluate the roles of surface electrocardiogram (ECG) and transthoracic echocardiography (ECHO) for prediction of atrial fibrillation (AF) after coronary artery bypass grafting (CABG).

Methods: This study was conducted from 2002-2004 at the Cardiovascular Department of Hacettepe University, Ankara, Turkey. Seventy consecutive patients were enrolled in this study that underwent elective CABG.

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Background: Open heart surgery still involving major bleeding continues to be a major challenge after cardiac surgery and is also a significant cause of morbidity and mortality. Most hemostatic factors are intercorrelated with postoperative bleeding, and fibrinogen seems the most fundamental hemostatic risk factor for open heart surgery.

Methods: The study included 97 patients who underwent elective coronary artery surgery (78 men and 19 women; mean age, 60.

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Objective: To examined the pre- and post- operative anti-HSP60 antibodies of serum from patients in preoperative sinus rhythm.

Methods: We prospectively studied 45 consecutive patients admitted for elective CABG from 2004 to 2005. We randomly selected 10 patients developing AF (study sample [Group A]) and 10 postoperative patients without AF (control [Group B].

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