PubMed İndeksli Yayınlar Koleksiyonu

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Citation Count: 6
Affective Modulation of Working Memory Maintenance: The Role of Positive and Negative Emotions
(UNIV ECONOMICS) Gökçe, Ahu; Zinchenko, Artyom; Annac, Efsun; Conci, Markus; Geyer, Thomas
The present study investigated the impact of task-irrelevant emotional images on the retention of information in spatial working memory (WM). Two experiments employed a delayed matching-to-sample task where participants had to maintain the locations of four briefly presented squares. After a short retention interval, a probe item appeared and participants were required to indicate whether the probe position matched one of the previously occupied square positions. During the retention interval, task-irrelevant negative, positive, or neutral emotional pictures were presented. The results revealed a dissociation between negative and positive affect on the participants' ability to hold spatial locations in WM. While negative affective pictures reduced WM capacity, positive pictures increased WM capacity relative to the neutral images. Moreover, the specific valence and arousal of a given emotional picture was also related to WM performance: While higher valence enhanced WM capacity, higher levels of arousal in turn reduced WM capacity. Together, our findings suggest that emotions up- or down-regulate attention to items in WM and thus modulate the short-term storage of visual information in memory.
Antibiyotikli kemik çimentosunun 0 ve 15. günlerde mekanik dayanımı: Surgical Simplex P kemik çimentosu ve teikoplanin ile biyomekanik çalışma
(Türk Ortopedi ve Travmatoloji Derneği, 2002) Göğüş, Abdullah; Akman, Şenol; Göksan, Bora S.; Bozdağ, Ergün
Amaç: Mekanik dayanım açısından 40 gr belirli bir kemik çimentosuna katılabilecek belirli bir antibiyotiğin maksimum dozu "0. gün" ve antibiyotik salınımı sonrası "15. gün" için araştırıldı. Çalışma planı: 40 g Surgical Simplex P kemik çimentosuna 0, 400, 800,1200,1600, 2000, 3200 ve 4000 mg teikoplanin katılarak sekiz deney grubu oluşturuldu. Kompresyon ve dört nokta eğme mekanik dayanım testleri için üçüncü kuşak sement hazırlama ve uygulama koşullarında örnekler elde edildi. Her bir konsantrasyon için "0. gün" ve "15. gün" için 10'ar örnek oluşturuldu. Örneklerin mekanik dayanım testleri ASTM ve ISO standartlarına göre "0. gün" ve 37∘ C su banyosunda antibiyotik salınımı sonrası "15. gün"de yapıldı. Değişik antibiyotik konsantrasyonları 0 mg kontrol grubu ile, ayrıca aynı antibiyotik konsantrasyonlarının 0. gün ve 15. gün mekanik test sonuçları karşılaştırıldı. Sonuçlar: Kompresyon testlerinde "0. gün" grubu içinde anlamlı farklılık bulunmadı; "15. gün" grubunda ise 800 mg'den itibaren anlamlı dayanım azalması saptandı. Her iki grupta tüm konsantrasyonlarda elde edilen mekanik dayanım değerleri ASTM alt limiti olan 70 MPa'nın üzerindeydi. Dört nokta eğme testinde "0. gün" grubunda 1200 mg'den itibaren, "15. gün" grubunda ise 400 mg'den itibaren anlamlı dayanım azalması saptandı. "15. gün" grubundan 4000 mg ISO'nun alt limiti olan 50 MPa'nın altında kalırken, 3200 ve 2000 mg gruplarında 50 MPa'ya çok yakın sonuçlar elde edildi. Çıkarımlar: Deney sonuçları, üçüncü kuşak çimento hazırlama ve uygulama koşullarında, 40 gr Surgical Simplex P kemik çimentosuna güvenle katılabilecek en yüksek teikoplanin dozunun 1600 mg olduğunu gösterdi.
Citation Count: 0
Attractiveness Differentially Affects Direct Versus Indirect Face Evaluations in Two Cultures
(Sage Publications Inc, 2023) Cassidy, Brittany S.; Saribay, S. Adil; Yuksel, Huseyin; Kleisner, Karel
Although decades of research have identified facial features relating to people's evaluations of faces, specific features have largely been examined in isolation from each other. Recent work shows that considering the relative importance of these features in face evaluations is important to test theoretical assumptions of impression formation. Here, we examined how two facial features of evolutionary interest, facial attractiveness and facial-width-to-height ratio (FWHR), relate to evaluations of faces across two cultures. Because face evaluations are typically directly measured via self-reports, we also examined whether these features exert differential effects on both direct and indirect face evaluations. Evaluations of standardized photos naturally varying in facial attractiveness and FWHR were collected using the Affect Misattribution Procedure in the United States and Turkey. When their relative contributions were considered in the same model, facial attractiveness, but not FWHR, related to face evaluations across cultures. This positive attractiveness effect was stronger for direct versus indirect evaluations across cultures. These findings highlight the importance of considering the relative contributions of facial features to evaluations across cultures and suggest a culturally invariant role of attractiveness when intentionally evaluating faces.
Citation Count: 1
Cervical spine injuries in children
(2004) Hamzaoglu, A.; Mirzanli, C.
Cervical spine injuries in children and adolescents are rare. Common mechanisms include motor vehicle accidents, sports injuries, fall from height, and gunshot injuries. Cervical spine injuries are classified by Allen and Ferguson according to the period they occur, as infantile, early juvenile, and late juvenile. Anatomically, two main types are defined as occipitoatlantal (upper cervical) and subaxial injuries. The purpose of this paper is to review cervical spine injuries in children and adolescents with respect to epidemiology, injury mechanisms, diagnosis, clinical and radiologic aspects, and treatment in the light of the current literature.
Citation Count: 10
Comparison of intraoperative transit-time flow measurement with early postoperative magnetic resonance flow mapping: In off-pump coronary artery surgery
(2003) Sanisoglu,I.; Guden,M.; Balci,C.; Sagbas,E.; Duran,C.; Akpinar,B.
The purpose of this prospective study was to evaluate graft patency of off-pump coronary artery surgery intraoperatively by transit-time flow measurement and to compare this technique with postoperative magnetic resonance flow mapping. Twenty patients (13 men and 7 women; mean age, 67.9 ± 7.6 yr) underwent off-pump coronary artery surgery. Intraoperative transit-time flow measurement of grafts was performed measuring maximum, minimum, and mean flows. For each graft, the pulsatile index was calculated by dividing the difference between the maximum and the minimum flow by the mean flow. In the early postoperative period (1st week), magnetic resonance flow mapping was performed using phase contrast flow quantification. Mean intraoperative flow values and mean magnetic resonance flow mapping values were compared. At the same postoperative session, contrast-enhanced magnetic resonance angiography was performed to evaluate graft patency. In 20 patients, a total of 49 coronary graft flows were assessed with intraoperative transit-time flow measurement and postoperative magnetic resonance flow mapping. Upon comparison, there was a strong correlation between techniques, with stable and statistically significant differences between the intraoperative and postoperative flow mapping values. One saphenous vein graft was revised intraoperatively, due to graft failure. Our data suggest that the combined use of intraoperative transit-time flow measurement and postoperative magnetic resonance flow analysis has a potential role in the assessment of graft patency in off-pump coronary artery surgery, although more study is required.
Citation Count: 17
Corneal ring segments (INTACS) for the treatment of asymmetrical astigmatism of the keratoconus. Follow-up after 2 years;
(2003) Tunc,Z.; Deveci,N.; Sener,B.; Bahcecioglu,H.
Objective: To evaluate the use of corneal ring segments (INTACS) for the treatment of asymmetrical astigmatism in keratoconus. Material and methods: This prospective study involved nine eyes of seven patients who were operated on between December 1998 and June 2000. A case of keratoconus with opacified cornea was excluded from this study. The patients chosen were contact lens-intolerant. The surgical intervention was carried out under topical anesthesia. The INTACS (Addition Technology) corneal ring insert was inserted approximately 68% of the peripheral corneal depth and was centered to the cone of the cornea. Results: No intraoperative complications occurred. We noted a flattening of the central cornea and a decrease in irregular astigmatism for all patients. Mean preoperative uncorrected visual acuity was less than 1/10. Postoperatively two eyes had an uncorrected visual acuity of 10/10, seven eyes showed an improvement from an uncorrected visual acuity of 2/10 to 7/10. Conclusion: We have observed that the flattening effect of INTACS inserts on the soft corneal keratoconic tissue and on the high astigmatic tissue seems greater than that produced in normal cornea. Implantation of INTACS resulted in a significant reduction in asymmetrical astigmatism of the keratoconus.
Citation Count: 1
COVID-19 modeling based on real geographic and population data
(Tubitak Scientific & Technological Research Council Turkey, 2023) Berker, Ahmet Nihat; Berker, A. Nihat; Mandal, Hasan; Kaygusuz, Hakan
Background/aim: Intercity travel is one of the most important parameters for combating a pandemic. The ongoing COVID-19 pandemic has resulted in different computational studies involving intercity connections. In this study, the effects of intercity connections during an epidemic such as COVID-19 are evaluated using a new network model. Materials and methods: This model considers the actual geographic neighborhood and population density data. This new model is applied to actual Turkish data by means of provincial connections and populations. A Monte Carlo algorithm with a hybrid lattice model is applied to a lattice with 8802 data points. Results: Around Monte Carlo step 70, the number of active cases in Turkiye reaches up to 8.0% of the total population, which is followed by a second wave at around Monte Carlo step 100. The number of active cases vanishes around Monte Carlo step 160. Starting with Istanbul, the epidemic quickly expands between steps 60 and 100. Simulation results fit the actual mortality data in Turkiye. Conclusion: This model is quantitatively very efficient in modeling real-world COVID-19 epidemic data based on populations and geographical intercity connections, by means of estimating the number of deaths, disease spread, and epidemic termination.
Citation Count: 3
Exploring the Space-Calorie Association: Preliminary Evidence from Reaction Time Performance
(Univ Economics & Human Sciences Warsaw, 2021) Gökçe, Ahu; Gokce, Ahu
The present study was designed to investigate the representation of calorie levels in space. Previously an association between numerical magnitude and space has been established, namely, the Spatial Numerical Association of Response Codes (SNARC) effect. The spatial-numerical association reveals representation of smaller and larger numbers by the left and right sides, respectively. In addition, previous studies showed that spatial arrangement of foods in space affects the food selection behavior. In three experiments, the presence of an association between calorie magnitude and space was tested to understand how it could potentially affect food selection behavior. Reaction times were recorded to investigate the speed of information processing. In Experiment 1, locations of low and high calorie food stimuli were (in)congruent in terms of the space-calorie association. In Experiment 2, endogenous spatial cues were used to bias attention to investigate if this bias would lead to formation of the space-calorie association. Finally, Experiment 3 investigated whether green and red colors evoke approach or avoidance behavior and prevent formation of the space-calorie association. In all experiments, results revealed lack of an association between space and calorie, that is, presenting low/high calorie items on the left/right hemispace, respectively, did not modulate the processing speed.
Citation Count: 2
Jejunojejunal intussusception secondary to lipoma in an adult -: A case report
(Blackwell Munksgaard, 2002) Çakirer, S; Sirvanci, M; Duran, C
Lipoma is a rare cause of adult intussusception. We present the CT findings of an adult patient with jejunojejunal intussusception secondary to submucosal lipoma as the lead point in this case report.
Citation Count: 1
Long-standing seroma after ultrasound-assisted liposuction
(Lippincott Williams & Wilkins, 2001) Ağaoğlu, Galip; Erol, O. Onur
[Abstract Not Available]
Citation Count: 13
Mechanical strength of antibiotic-impregnated bone cement on Day 0 and Day 15: a biomechanical study with Surgical Simplex P and teicoplanin
(2002) Gögüş, A.; Akman, S.; Göksan, S.B.; Bozdag, E.
OBJECTIVES: To determine the maximum amount of a specific antibiotic added to 40 g acrylic bone cement in terms of the effect on mechanical properties of the bone cement on Day 0 and after antibiotic release on Day 15. METHODS: In an experimental design, eight teicoplanin doses (0, 400 mg, 800 mg, 1200 mg, 1600 mg, 2000 mg, 3200 mg and 4000 mg) were added to bone cement (Surgical Simplex P). Specimens were prepared using the third generation cementing technique to determine the compressive strength and four-point bending strength according to ASTM and ISO standards, respectively. For each concentration, 10 samples were prepared for Day 0 and Day 15. Mechanical tests were performed on Day 0 and after antibiotic leaching in water at 37 degrees C on Day 15. 0 mg specimens served as controls and mechanical strengths for each antibiotic concentration on Day 0 and Day 15 were compared. RESULTS: In compression tests, Day 0 samples showed no significant differences, whereas Day 15 samples starting with 800 mg exhibited significant decreases in compressive strength. However, the compressive strengths were above the minimum standard of 70 MPa set by ASTM at all concentrations and in all groups. Four-point bending tests demonstrated significant decreases in strength starting with 1200 mg in Day 0 samples, and with 400 mg in Day 15 samples. Four-point bending strengths of 2000 mg, 3200 mg, and 4000 mg samples decreased below, or approximated closely the minimum standard of 50 MPa set by ISO on Day 15. CONCLUSION: Our results suggest that the maximum amount of teicoplanin dose to be safely added to 40 g of Surgical Simplex P is 1600 mg when third generation cement mixing and application techniques are employed.
Citation Count: 0
Nosocomial urinary tract infection surveillance in our hospital
(2004) Aytaç, J.; Coşkun, D.; Aydinli, A.; Bayer, A.
[No abstract available]
Citation Count: 6
Novel Mutants of the Aubergine Gene
(Taylor & Francis Inc, 2016) Şahin, Hatice Bahar; Karataş, Ömer Faruk; Specchia, Valeria; Di Tommaso, Silvia D.; Diebold, Celine; Bozzetti, Maria Pia; Giangrande, Angela
Aubergine is an RNA-binding protein of the Piwi clade functioning in germline in the piRNA pathway that silences transposons and repetitive sequences. Several mutations of this gene exist but they mostly result in truncated proteins or correspond to mutations that also affect neighboring genes. We have generated complete aubergine knock-out mutants that do not disrupt the neighboring genes. These novel mutants are characterized by PCR and sequencing. Their nature is confirmed by female sterility and by the presence of crystals in testes common to the aubergine loss of function mutations. These mutants provide novel and more appropriate tools for the study of the piRNA pathway that controls genome stability.
Citation Count: 18
Off-pump coronary artery bypass grafting with use of the octopus 2 stabilization system.
(2000) Akpinar,B.; Güden,M.; Sagbas,E.; Sanisoglu,I.; Aytekin,V.; Bayindir,O.
BACKGROUND: The treatment of coronary artery disease has evolved rapidly over the last two decades. The gold standard of surgical revascularization, the on-pump coronary artery bypass graft, has been challenged by the development of percutaneous transluminal coronary angioplasty. Our experience with the alternative of the off-pump ("beating heart") coronary artery bypass (OPCAB) technique during a period of 18 months suggests that OPCAB avoids the complications of cardiopulmonary bypass and offers patients the benefit of long-term graft patency that greatly exceeds that of current endovascular technologies. METHODS: The early results of 126 OPCAB procedures performed through a medial sternotomy incision during a period of 18 months were evaluated. There were 80 male and 46 female patients, with a mean age of 69 +/- 4.3 years. Emergency cases and reoperations were not included. A total of 268 anastomoses were performed, with a mean number of 2.12 anastomoses per patient. Conduits used, with their percentage of use, were: left internal thoracic artery (LITA) (100%), right internal thoracic artery (11.1%), greater saphenous vein (84%), and radial artery (31%). In 72% of the cases, off-pump surgery was chosen because of patient risk factors such as atherosclerotic aortic disease, previous cerebrovascular accident or carotid artery disease, renal dysfunction, malignancy or poor left ventricular function. RESULTS: There was no operative mortality. One-month postoperative mortality was three patients (2.3%). Two died because of mesenteric ischemia, and the other death was due to cardiac failure. Seventy-one patients had a control angiogram before discharge. The patency of LITA anastomosis was 100% while overall patency rate was 95%. In 43 patients for whom an angiogram could not be performed, a Thallum 201 stress test was performed three months postoperatively. Thirty-eight patients had a normal test while five patients showed signs of ischemia. These patients had a control angiogram: in four patients anastomoses were patent, but in one patient there was a severe narrowing of a venous anastomosis to the distal right coronary artery (RCA) which was corrected with angioplasty. In the whole series eight patients (6.3%) refused to have any control examination. CONCLUSIONS: Our early results suggest that off-pump CABG with Octopus 2 (Medtronic, Inc., Minneapolis, MN) can be a good alternative in high risk patients who need multiple vessel revascularization.
Citation Count: 4
Personality Motivation and Math Achievement Among Turkish Students: Evidence from PISA Data
(Sage Publications Inc, 2017) Selçuk, Elif Akben
Using the Turkish portion of the Programme for International Student Assessment dataset (N=4848
Citation Count: 2
Recurrent cholangitis associated with biliary sludge and Phrygian cap anomaly diagnosed by magnetic resonance imaging and magnetic resonance cholangiopancreatography despite normal ultrasound and computed tomography
(Taylor & Francis, 2005) Başaranoğlu, Metin; Balcı, Numan Cem
A 31-year-old woman presented with a one and half years' history of intermittent right upper quadrant (RUQ) pain high fever and severely painful warm and reddish swollen skin lesions on the fingers. Acute attack resolution occurred within 2 weeks after treatment with non-specific antibiotics. Low-grade fever ( around 37.5 degrees C) and less painful swellings continued for 6 months after each attack. Abdominal ultrasound and computed tomography (CT) scans did not show any abnormality during the attacks. Biopsy of the skin lesions after the second attack revealed lymphocytic vasculitis. All laboratory studies including rheumatologic serology panel were normal. One month after the complete resolution of the second attack the patient was observed to have high fever the same skin lesions on the fingers as at the initial stage nausea and marked abdominal pain in the RUQ. Routine laboratory studies including complete blood count liver function tests and serum amylase and lipase levels were normal. An abdominal CT scan revealed a slight thickening of the gallbladder wall (3.9 mm). Two weeks later abdominal magnetic resonance imaging (MRI) and magnetic resonance cholangiopancreatography ( MRCP) were performed because of persistent abdominal pain. They revealed both biliary tract and pancreatic gland alterations consistent with past cholangitis and pancreatitis with coexisting Phrygian cap anomaly and biliary sludge on the neck of the gallbladder.
Citation Count: 3
Relationship between dyslipidemia, c-reactive protein and serological evidence of Chlamydia pneumoniae in Turkish patients with coronary artery diseases
(2004) Turkoglu,C.; Sonmez,E.; Aydinli,A.
Relationship between dyslipidemia, C-Reactive Protein (CRP) and serological evidence of Chlamydia pneumoniae was investigated in a Turkish population with coronary artery disease. This prospective, randomized, blinded study was carried out in Florence Nightingale Hospital which is affiliated to Kadir Has University, Medical Faculty. Thirty-two patients with acute coronary artery diseases (ACAD), 32 patients with chronic coronary artery diseases (CCAD) and 26 healthy controls (HC) were included in the study. We detected serum concentrations of C. pneumoniae IgG, IgA and IgM by ELISA method. We measured total cholesterol, trigliseride, LDL and HDL- cholesterol levels to determine dyslipidemia which was defined as total cholesterol >200 mg/dL, trigliserid > 150 mg/dl, LDL >130 mg/dL, HDL <45 mg/dL. CRP levels were also measured. Seropositivity to C. pneumoniae IgG was 84.3%, 100% and 65.3%; seropositivity to IgA was 9.3%, 6.2%, and 3.8%; and seropositivity to IgM was 12.5%, 15.3%, and 15.4% in patients with ACAD, CCAD and HC, respectively. Dyslipidemia was found as 93.7%, 78.1% and 0% of patients with ACAD, CCAD and HC, respectively. CRP level was high in all patients (ACAD, CCAD) but not in healthy controls. As a conclusion, we found a significant association between seropositivity to C. pneumoniae IgG and dyslipidemia and CRP levels in ACAD and CCAD patients (p<0.05). C. pneumoniae IgG antibodies should be evaluated together with serum lipids and CRP levels in patients with ACAD and CCAD in Turkish population. This may help clinicians in treatment of C. pneumoniae infection and decrease the risk of coronary artery diseases.
Citation Count: 9
Self-efficacy and hemodialysis treatment: A qualitative and quantitative approach
(Turkish Association of Nervous and Mental Health, 2013) Krespi, Margörit Rita; Salmon, Peter
The theoretically driven approach to the measurement of self-efficacy fails to capture the challenges that hemodialysis patients experience in following their dietary and fluid restrictions. Aims: A combination of qualitative and quantitative research is necessary to identify the range of challenges associated with these restrictions and to quantify them if clinicians are to be guided in their consultations with patients. In this study the construct of self-efficacy was grounded on the basis of challenges to dietary and fluid restrictions and the findings were used to develop a questionnaire to quantify the patients' perceptions of their ability to overcome each challenge. Materials and Methods: The sample for the qualitative study consisted of 16 hemodialysis patients and the quantitative study included 156 hemodialysis patients. Results: The qualitative findings showed that the patients experienced a range of specific challenges to dietary and fluid restrictions. Among these were practical constraints being with others the view of hemodialysis as compensating for dietary non-compliance and emotional challenges including discomfort distress and boredom with dietary and fluid restrictions. The most common challenge to fluid restrictions was eating while not having any fluid allowance left. Boredom with diet was the most common challenge to diet. Hemodialysis treatment was a justification for a significant number of patients to neglect their dietary and fluid restrictions. Conclusion: The findings suggest that grounded self-efficacy is a unitary phenomenon but that it incorporates a wide spectrum of specific challenges. The challenges identified herein have provided an evidence base for educational interventions to improve compliance with dietary and fluid restrictions.
Citation Count: 5
The surgical treatment of atrial fibrillation
(Turkish Soc Cardiology, 2007) Akpınar, Belhhan; Sağbaş, Ertan; Güden, Mustafa; Sanisoğlu, İlhan
The surgical treatment of atrial fibrillation (AF) has entered a new era with the development of new tools and advanced techniques. The Maze III operation remains as the gold standard for the surgical treatment of AF. However new energy sources have been adopted for treating this arrhythmia in an effort to reduce the invasiveness and technical concerns with the original procedure. Success rates ranging between 70-98% have been reported using these new techniques. On the other hand interventional cardiologists have further improved their techniques so that percutaneous techniques are competing with minimally invasive ablation techniques for the treatment of drug resistant and symptomatic lone AF. These developments have aroused the interest of cardiac surgeons in AF surgery and have found themselves a wide application. It has been estimated that thirty thousand patients have undergone surgical ablation for AF so far. Inevitably procedure related complications have occurred and caused skepticism by some groups. However surgical ablation has become a widely accepted treatment modality for AF patients undergoing concomitant cardiac surgery. The aim of this text is to make an overall review of the surgical treatment of AF and evaluate the current situation in view of the literature and the personal experience of the authors.
Citation Count: 6
The use of stentless valves for root replacement during repair of ascending aortic aneurysms with aortic valve regurgitation
(2002) Akpinar,B.; Güden,M.; Aytekin,S.; Sanisoglu,I.; Sagbas,E.; Özbek,U.; Bayramoglu,Z.
Background: Early and mid-term results of stentless valves for the treatment of ascending aortic aneurysm (AAA) were evaluated in a retrospective manner. Material and Methods: During a four-year period, 26 patients with ascending aortic aneurysms and aortic valve insufficiency underwent a total root replacement procedure using a stentless "Freestyle" valve (Medtronic Inc., Minneapolis MN). Mean age was 71 ± 4 years (range 66 to 79 years). Eight patients were in NYHA Class 2, 13 in Class 3, and 5 in Class 4. Cardiopulmonary bypass (CPB) was begun with femoral artery-right atrium (two-stage) cannulation in all cases but four, in which the right axillary artery was used. Myocardial protection was established by retrograde, cold-blood cardioplegia and direct antegrade blood cardioplegia from the right coronary ostium. The left ventricle outflow tract was constructed by using 2-0 ticron sutures and incorporating a pericardial strip in between. Coronary buttons were sewn to the xenograft with 6-0 polypropylene sutures. Meanwhile, the patient was cooled down to 18 degrees nasopharyngeal temperature and the distal anastomosis with the proximal arch was performed with a Dacron graft under total circulatory arrest (TCA), using 4-0 polypropylene sutures. During rewarming, the connection between the Freestyle valve and the Dacron graft was performed. Results: Ischemic time was 91 ± 11 minutes and TCA time was 9 ± 4 minutes. Operative mortality was zero, and there was one 30-day mortality (3.8%). At discharge, all 25 patients had a functional valve with low transvalvular gradients. Patients were followed for a mean period of 15 months, with one patient being lost to follow-up and one patient dying of non-cardiac causes. Follow-up was 97% complete, and echocardiographic control during the follow-up period revealed competent valves with gradients comparable to those at discharge. Two patients were screened with electron beam tomography (EBT) three years after the operation and there was no sign of wall or leaflet calcification. At the end of the 15 months (mean) follow-up, the functional capacity of the patients had improved significantly (p <0.05). Conclusions: Our early results suggest that use of the Freestyle valve in conjunction with a Dacron tube graft can be a good alternative for patients over 65 years of age who present with ascending aortic aneurysm with aortic valve insufficiency.

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