Amaç: Atriyal fibrilasyonda sol atriyal trombüs oluşması açısından koagülasyon parametrelerinin rolü yeterince araştırılmamıştır. Atriyal fibrilasyonlu hastalarda sol atriyal trombüs ile veya onun öncüsü olduğu düşünülen spontan eko-kontrast varlığı (SEK) ile beta fibrinojen gen polimorfizmi ile trombosit glikoprotein IIIa gen polimorfizmi arasındaki ilişkiyi araştırmayı amaçladık. Yöntemler: Transözofageal ekokardiyografi yapılan atriyal fibrilasyonlu 47 hasta enine kesitsel gözlemsel çalışmamıza dahil edildi. Hastalar 2 gruba ayrıldı. Sol atriyal trombüsü olanlar Grup 1'i (n=24) ve trombüsü olmayanlar grup 2'yi (n=23) oluşturdu. Beta fibrinojen gene polimorfizm veya glikoprotein IIIa gen polimorfizmlerini saptamak için genetik analizler yapıldı. İstatistiksel analizde Mann Whitney U ve Ki-kare testleri kullanıldı. Bulgular: Demografik ve klinik özellikler bakımından gruplar arasında fark saptanmadı. Beta fibrinojen 455 G/A gen polimorfizm sıklığı grup 1'de (%37.5) grup 2'ye göre (%15) istatistiksel anlamlılığa ulaşmayacak şekilde (p=0.23) daha yüksek saptandı. Çalışma grubuna ciddi SEK'i olan hastalar da eklendiğinde (trombüs ve ciddi SEK n=27) 2 grup arasındaki fark (%44.4-%10) istatistiksel anlamlılığa ulaşmaktaydı (p=0.01). Glikoprotein IIIa Pl A1/A2 polimorfizmi ise gruplar arasında (p=0.73) SEK eklense de (p=0.82) farklı bulunmadı. Grup I'de grup II'ye göre mitral yetmezliği skoru daha düşük olma eğiliminde (p=0.08), SEK skoru ise anlamı olarak daha yüksek idi (p=0.03). ÖZETOb jec ti ve: The role of coagulation parameters left atrial thrombus formation in atrial fibrillation has not been investigated before. We aimed to investigate the association between the beta-fibrinogen gene polymorphism or glycoprotein IIIa gene polymorphism and presence of left atrial (LA) thrombus or spontaneous echo contrast (SEC) in patients with atrial fibrillation (AF). Methods: Forty-seven patients with AF, in whom transesophageal echocardiography was performed, were included to this cross-sectional observational study. Patients were divided in two groups; those with LA thrombus (n=24) were assigned to group 1 and those without thrombusin group 2 (n=23). DNA analysis was conducted to determine gene polymorphism in all patients. Mann-Whitney U test or Chi-square tests were used for statistical analysis Results: There were no significant differences between groups regarding to demographic and clinical characteristics. The frequency of betafibrinogen 455 G/A polymorphism was higher (37.5%) in group 1 as compared to group 2 (15.1%) but it did not reach statistical difference (p=0.23). When we added patients with severe SEC in the study group (patients with severe SEC and/or thrombus n=27) the difference (44.40%-10%) reached the statistical difference (p=0.01). Glycoprotein IIIa Pl A1/A2 polymorphism was not different between groups with (p=0.82) or without SEC (p=0.73). Conclusion: In patients with atrial fibrillation, beta-fibrinogen 455 G/A gene polymorphism is associated with the presence of left atrial thrombus and severe SEC...

Objective:GuideLiner catheter provides adequate back-up support and a coaxial guide engagement for stent delivery in complex coronary anatomies. In this study, we aimed to present one of the largest series of experience with GuideLiner catheter utilized for challenging percutaneous coronary interventions in two centers.Methods:We retrospectively collected the coronary angiography records of 64 patients between January 1, 2012 and August 1, 2014 in whom conventional techniques failed for stent delivery and 5-in-6 Fr GuideLiner catheter was used for this purpose. The data were assessed in terms of the lesion characteristics, procedural success, and complications. Descriptive statistics and frequencies were used in statistical analyses.Results:The mean age of the patients was 69.8±10.0 years. Femoral approach was employed in all cases. Lesions were mostly (90.6%) class B2 or C according to the AHA/ACC lesion classification. The GuideLiner catheter was mainly used to increase back-up of the guide catheter (85.9%), and in 95.3% of all cases, the procedure was successful. The mean depth of the GuideLiner catheter intubation was 30.3±21.6 mm. None of the patients had coronary dissection or major complications.Conclusion:In this study, we presented a large registry of two centers used the GuideLiner catheter. The device effectively allowed stent delivery in challenging lesions, where conventional techniques have failed, without major complications.

No abstract

No abstract

Objective:The floating wire technique is a special technique for solving interventional problems in aortaostial lesions. There are no long-term data in the literature for the floating wire technique in right aorto-ostial lesions.Methods:One hundred twenty six patients were retrospectively analyzed in this study. All of these patients had a critical right coronary aortoostial lesion. The floating wire technique was performed on 64 patients, and the single wire technique was performed on 62 patients. The two groups were compared with each other in terms of lesional and procedural properties. Additionally, 1-year clinical follow-up results were compared between the two groups.Results:There was no significant difference in terms of lesion properties between the groups. In the floating wire group, mean stent length, number of stents, mean procedure time, mean contrast volume, and mean fluoroscopy time were significantly lower than in the single wire group. At 1 year, 1 patient from each group had myocardial infarction, and no mortality was observed. In the floating wire group, the number of patients who experienced angina and the target lesion revascularization rate were both significantly lower than in the single wire group.Conclusion:The floating wire technique in right coronary ostial lesions provides a significant advantage over the single wire technique according to procedural and clinical follow-up results.