78 results on '"OLGUNTÜRK, RANA"'
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52. Stent implantation to left pulmonary artery stenosis in children: a case report.
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Saygili A, Canter B, Kula S, Tunaoglu FS, Olguntürk R, Saygili, Arda, Canter, Berna, Kula, Serdar, Tunaoğlu, Fatma Sedef, and Olguntürk, Rana
- Published
- 2004
53. Stent Implantation to Left Pulmonary Artery Stenosis in Children: A Case Report.
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Saygılı, Arda, Canter, Berna, Kula, Serdar, Tunaoğlu, Fatma Sedef, and Olguntürk, Rana
- Published
- 2004
54. Rheumatic Fever in Children Under 5 Years Old.
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Berna, Canter, Olguntürk, Rana, and Tunaoglu, F. Sedef
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LETTERS to the editor , *RHEUMATIC fever in children - Abstract
Presents a letter to the editor in response to the article "Rheumatic Fever in Children Younger Than 5 Years: Is the Presentation Different?," by L. Y. Tani in the 2003 issue.
- Published
- 2004
- Full Text
- View/download PDF
55. Postpneumonic empyema in childhood: a little goes a long way.
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Dalgiç, Nazan, Olguntürk, Rana, Dursun, Ismail, Erer, Dilek, and Halit, Velid
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- 2004
- Full Text
- View/download PDF
56. Comparison of multigated radionuclide ventriculography and 2 D Echocardiography in the detection of systolic abnormalities in children with Duchenne's muscular dystrophy
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Vural, Günsel, Ünlü, Mustafa, Ouz, Deniz, Turgut, Bülent, Inanir, Sabahat, and Olguntürk, Rana
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- 1995
- Full Text
- View/download PDF
57. The role of Tc-99m HMPAO lung clearence in staging of pulmonary hypertension in congenital heart disease: A comparative study with cardiac catheterization
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Yener, Ali, Ünlü, Mustafa, Günaydin, Serdar, Inanir, Sabahat, Vural, Günsel, and Olguntürk, Rana
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- 1995
- Full Text
- View/download PDF
58. Doğumsal siyanotik kalp hastalıklarında ve situs anomalili hastalarda CFC1 geninin R78W polimorfizm sıklığı
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Aktaş Köşker, İlknur, Olguntürk, Rana, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
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Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
ÖZETDOĞUMSAL SİYANOTİK KALP HASTALIKLARINDA VE SİTUS ANOMALİLİHASTALARDA CFC1 GENİNİN R78W POLİMORFİZM SIKLIĞIGİRİŞ VE AMAÇ: Doğuştan gelen çoğu kalp anomalilerin kalp gelişimi sırasındave sol-sağ aks belirleme sürecindeki hatalarla ilgili olduğunun kanıtları bulunmaktadır.Doğumsal kalp anomalilerinin %8'inin genetik bir defektle ilgisi saptanabilir. EGF-CFCgen ailesinden olan CFC1 geni sol sağ aksın gelişiminden sorumlu bir gendir. Ayrıcaheterotaksisi olmayan kompleks kalp hastalığı olan (BAT ve ÇÇSV) bireylerde CFC1 genmutasyonu saptanmıştır. Bu çalışmada kompleks kalp hastalığı olan dekstrotrokardi vesitus inversus totalisli hastalarda CFC1 geninin R78W polimorfizm sıklığının araştırılmasıamaçlanmıştır.YÖNTEM: Klinik değerlendirme, ekokardiografi ve anjiyokardiografi ile kesintanı konulan 0-16 yaş grubu 107 olgu, 0-16 yaş grubu 100 normal çocuk çalışmayaalınmıştır. CFC1 geninin R78W polimorfizmi restriksiyon analizli PCR tekniği iledeğerlendirilmiştir.SONUÇLAR: 107 hasta grubunda, 100 kontrol grubunda CFC1 geninin R78Wpolimorfizm sıklığı çalışılmış, hasta ve kontrol gruplarında bu polimorfizmgösterilememiştir.TARTIŞMA: Bu çalışmada CFC1 geninin R78W polimorfizminin hasta ve kontrolgrubu olarak 207 olguda hiç gösterilememiş olması gen sıklığının toplumda az saptanmasıve kompleks kalp hastalığı olan çocuklarda ise daha çok Afrika kökenli Amerikalılardabulunması, literatür bulgularını desteklemektedir. Daha önce yapılmış araştırmalardasiyanotik ve kompleks kalp hastalıklarında R78W polimorfizminin çok az gösterilmiş veyahiç gösterilememiş olması belki de bu mutasyonun bu hastalık grubu ile doğrudan ilişkiliolmadığını düşündürmektedir. İleride daha geniş hasta grupları ile yapılacak çalışmalarve/veya meta-analizlerle bu ilişki daha açıklık kazanabilecektir.Anahtar kelimeler: CFC1 gen, heterotaksi, criptik56 SUMMARYCONGENİTAL CYANOTİC CARDIAC DISEASES AND R78WPOLYMORPHISM FREQUENCY OF CFC1 GENE IN PATIENTS WITH SITUSANOMALYINTRODUCTION AND PURPOSE: There is evidence that most congenitalcardiac anomalies are associated with failures during heart development or process ofdetermination of left-right axis. Association with a genetic defect can be detected in 8% ofcongenital heart anomalies. CFC1 gene, which belongs to EGF-CFC gene family, is a generesponsible for left-right axis. Also, mutation of CFC1 gene has been detected inindividuals with complex cardiac disease without heterotaxia (BAT and DORV). Thepurpose of this study is to determine the R78W polymorphism frequency of CFC1 gene incongenital cyanotic cardiac diseases and patients with dextrocardia and situs anomaly.METHOD: Hundred and seven patients with cyanotic congenital heart disease atthe age range of 0-16 years were included in the study. The diagnoses were confirmed byclinical and laboratory (ECG, chest x-ray, echocardiography, cardiac catheterisation)examinations. Age matched 100 normal children were included as controls. R78Wpolymorphism of CFC1 gene was evaluated using PCR with restriction analysis techniquein both groups.RESULTS: R78W polymorphism frequency of CFC1 gene could not be shown inpatient and control groups.DISCUSSİON: In this study, R78W polymorphism of CFC1 gene was not detectedin 207 events which include patient and control groups. This result is parallel to thefindings of the literature which indicates that this polymorphism is rare in caucasians andusually detected in African-Americans and Asians. As this mutation is rarely detected incongenital cardiac defects, it may not be directly related to the etiology of this diseasegroup. Following investigations with larger groups and/or meta-analysis of the previousstudies will bring solutions to this issue.Key words: CFC1 gene, heterotaxia, cryptic57 67
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- 2007
59. Fibrillin-1 gen polimorfizmi ve mitral kapak hastalığı riski
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Özdemir, Osman, Olguntürk, Rana, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
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Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
70ÖZETFİBRİLLİN-1 GEN POLİMORFİZMİ VE MİTRAL KAPAK HASTALIĞI RİSKİGİRİŞ: Çocukluk çağında mitral kapak kompleksinin en sık bozuklukları; MVP (aileselvakalarda OD kalıtım, MVP'de FBN geninin rolü hakkındaki çalışmalar sınırlıdır), RKH(mitral kapak endokardiyal tutulumun ilk hedefidir, fakat romatizmal karditte mitral kapağınfarklı tutulumları hakkında genetik bilgi yoktur) ile MFS (OD kalıtım, kromozom 15'te FBN1geninde mutasyon) ve EDS (kollajen gen mutasyonları) gibi bağ doku hastalıklarıdır. FBNmitral kapakta bulunan elastin ilişkili mikrofibrillerin yapısal birleşenlerinden biridir.AMAÇ: Bu vaka-kontrol çalışmasında, FBN1 gen polimorfizmi ve mitral kapak hastalığı riskiarasında olan ilişkinin araştırılması ile hastalardaki genotip-fenotip korelasyonunundeğerlendirilmesi amaçlanmıştır.YÖNTEM: Klinik değerlendirme ve EKO ile tanı konulan MVP'li 17 hasta, RKH'lı 40 hastaveyaş ve cinsiyet olarak karşılaştırılmış 59 normal çocuk çalışmaya alınmıştır. FBN1'de exon50, intron 52 ve intron 56 polimorfizmleri restriksiyon analizli PCR tekniğiyledeğerlendirilmiştir.SONUÇLAR: FBN1 intron 56 genotip dağılımında (p = 0.001) ve allelik sıklıkta (p = 0.021)hastalar ile kontrol grubu arasında, sağlıklı çocuklar lehine, belirgin farlılık bulunmuştur.FBN1 exon 50 ile intron 52 polimorfizminin genotip dağılımı ve allelik sıklığı (p = 0.198 ve0.738) açısından hastalar ile kontrol grubundaki çocuklar arasında belirgin bir farklılıkgörülmemiştir. Mitral kapak hastalığı hafif/orta şiddette olan hastalar ile ağır kapak etkilenimiolan hastalar arasında, FBN1 exon 50, intron 52 veya intron 56 polimorfizmleri açısından,genotip-fenotip korelasyonu bulunmamıştır.TARTIŞMA: Mitral kapak patolojisi olan hastalarda (MVP, bağ doku hastalıkları veya RKH)FBN1 intron 56 GC genotipi daha sık saptanmıştır. Sağlıklı çocuklarda ise FBN1 intron 56CC genotipi daha sık bulunmuştur. FBN1 intron 56 G allel sıklığı arttıkça mitral kapakhastalık riskinin de arttığını ileri sürmekteyiz.Anahtar kelimeler: Mitral kapak hastalığı, fibrillin-1, mitral kapak prolapsusu 71İNGİLİZCE ÖZET (SUMMARY)FIBRILLIN-1 GENE POLYMORPHISM AND RISK OF MITRAL VALVE DISEASEBACKGROUND: MVP (OD pattern for familiar cases, the role of FBN genetic variant in theMVP has locally been studied), rheumatic carditis (the mitral valve is the primary focus ofendocardial involvement, but genetic data isn?t found about different involvements of mitralvalve in the rheumatic carditis), and connective tissue diseases such as MFS (OD pattern,mutation in the FBN1 gene on chromosome 15) and EDS (mutations in collagen gene), themost common anomalies of the mitral valve apparatus throughout childhood. FBN is one ofthe structural components of the elastin-associated microfibrils found in the mitral valve.AIM: A case-controlled study has performed to investigate the relationship between FBN1gene polymorphisms and risk of mitral valve disease and evaluate of genotype and phenotypecorrelation in the patients.METHODS: Thirtyseven patients with MVP, 40 patients with rheumatic carditis diagnosedby clinically evaluation and echocardiography and 59 age- and sex-matched normal controlswere studied. Polymorphisms of exon 50, intron 52 and 56 of the FBN1 were identified byPCR-based restriction analysis.RESULTS: There was significant difference in the distribution of FBN1 intron 56 genotypes(p = 0.001) and allelic frequency (p = 0.021) between the cases and controls in favor of healtychildren. A significant difference was not seen in genotype distribution or allelic frequencybetween the cases and controls for neither FBN1 exon 50 polymorphism nor intron 52polymorphism (p = 0.198 and 0.738, respectively). There was not genotype and phenotypecorrelation between mild/moderate cases and severe cases with mitral valve disease for FBN1exon 50, intron 52 or intron 56 polymorphisms.CONCLUSION: Patients with mitral valve disease (MVP, connective tissue diseases orrheumatic carditis) have higher frequencies of FBN1 intron 56 GC genotypes. Healty childrenhave higher frequencies of FBN1 intron 56 CC genotypes. We speculate that the higherfrequency FBN1 intron 56 G allel, the more increase in the risk of mitral valve disease.Key words: Mitral valve disease, fibrillin-1, mitral valve prolapse 86
- Published
- 2006
60. Akut romatizmal ateşin etiyopatogenezinde viral etkenlerin rolü
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Okur, İlyas, Olguntürk, Rana, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
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Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
48 VII. ÖZET: Akut romatizmal ateş (ARA), ülkemiz gibi gelişmekte olan ülkelerde halen çocuklarda ve genç erişkinlerde kazanılmış kalp hastalıklarının en yaygın nedenidir. ARA etiyopatogenezinde streptokok enfeksiyonlarından sonra gelişen otoimmün mekanizmanın nedeni tam olarak bilinmemektedir. Immün sistemi etkilemeleri ve ARA kliniğine benzer klinik tablolara neden olmaları nedeniyle virüslerin ARA etiyopatogenezindeki rolü araştırılmıştır. Bu çalışmada; akut romatizmal artrit, akut romatizmal kardit ve koresi olan 47 olgu, kronik RKH olan 20 olgu, streptokoksik farenjitti 20 olgu ve sağlıklı 20 çocukta; HBV, HCV, rubella virüs, HSV grup 1 ve EBV için, serolojik ve moleküler testler uygulandı. Sonuçlarda HBsAg, Rubella IgM, EBV IgM yönünden hiçbir grupta pozitiflik saptanamadı. Anti-HBs seropozitifliği, sağlıklı çocuklarda ve streptokoksik farenjit) olan olgularda hasta grubuna göre daha yüksek bulunmasına karşın istatistiksel anlamlı fark bulunamadı. Rubella IgG, HSV IgM seropozitiflikleri açısından da kontrol grubuna göre farklılık yoktu. Latent bir virüs olan EBV, PZR yöntemi ile araştırıldı. Kontrol grubu ile diğer gruplar arasında EBV DNA yönünden anlamlı bir farklılık bulunamadı. EBV açısından kontrol grubunda hiç pozitiflik olmayıp tüm hasta gruplarında pozitiflik saptanması, bu virüsün daha geniş gruplarda araştırmaya değer olduğunu düşündürdü. Bu çalışmada; viral etkenlerin streptokoklarla sinerjistik bir etkisi gösterilememiştir. Genel olarak, koruyucu sağlık hizmetlerinin düzelmesi ile toplumdaki aşılama oranının artmasının ARA insidansındaki düşmede de etkili olabileceğini göstermiştir. 56
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- 2004
61. A retrospective study of patients with rheumatic fever and a new perspective in carditis criteria
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Canter, Berna, Olguntürk, Rana, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
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Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
50 VII. ÖZET Akut romatizmal ateşte Doppler ekokardiyografinin kullanılmasıyla ve çeşitli epidemilerle bildirilen yeni bulgularla hastalığın tanımlanmasından bu yana görülen tam sıkıntısı ve tam kriterlerinin tekrar ele alınması gündeme gelmiştir. Gündemdeki sorulardan biri de bu bulguların ARA'nın kliniğindeki değişimlere mi yoksa var olan özelliklerin yeni yeni anlaşılmasına mı bağlı olduğudur. Birçok ülkede ARA'nın epidemiyolojik verileriyle ilgili araştırma yapılmış ve hastalığın o ülkedeki durumu hakkındaki bilgilere ulaşılmış olmasına rağmen, ülkemizde bu konuyla ilgili ayrıntılı ve yüksek sayıda hasta serilerini içeren çalışma yok denecek kadar azdır. ARA'nın sık görüldüğü gelişmekte olan bir ülkenin teknik açıdan yeterli donanıma sahip bir hastanesi olarak 20 yıllık deneyimimizle 564 hasta ve 609 ARA atağım inceleyip, iki on yıllık dönemin detaylı retrospektif karşılaştırmasını yaparak kendi ülkemizin durumunu saptamak ve literatürdeki tartışmalara katkıda bulunmak istedik. Bu amaçla yaptığımız çalışmada, son on yılda artrit ve kore sıklığının artarken kardit oranının azaldığını, olguların artrit ya da kardit formu olmaları fark etmeksizin her iki on yılda da 11- 12 arası yaş ortalaması ve eşit cinsiyet dağılımı gösterdiklerini saptadık. Tüm olgular için %12.5 olan ailevi prevalansın artma eğiliminde olduğunu, reaktivasyonla gelen hasta sayısının azaldığını belirledik. Her iki on yılda da olgularımızda artraljinin artrite göre daha sık görüldüğünü ve tek eklem tutulumunun çoğunlukta olduğunu izlerken son on yılda büyük eklem tutulumu yerine karışık eklem tutulumunun arttığını gözledik. Kardit olgularının ağırlığında azalma olmakla birlikte %70 civarında olan 1 yıllık sekel oranı son on yılda değişmemiş, %20 civarında tespit ettiğimiz sessiz karditler de 1 yıl sonunda aynı sıklıkta iyileşmiştir. İncelemelerimiz, üfürümle tespit edilen ya da sessiz seyreden karditlerde yaş ve cinsiyetin prognoza belirgin bir etkisi olmadığını, tutulan kapak sayısının ve cinsinin sekel açısından önemli olduğunu göstermektedir. 562
- Published
- 2002
62. Vazovagal senkopta kalp hızı değişkenliğinin otonomik kontrolü
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Kula, Serdar, Olguntürk, Rana, and Çocuk Sağlığı ve Hastalıkları Anabilim Dalı
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Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
ÖZET Vasovagal senkop çocukluk çağındaki senkoplar içerisinde önemli bir sıklığa sahiptir. Bugüne kadar yapılan çalışmalarda altta yatan nedenin otonomik fonksiyon bozukluğu olduğunu destekler yönde sonuçlar elde edilmiştir. Son yıllarda yaygın olarak kullanılan KHD de, sempatik ve parasempatik sistemin uyumu konusunda değerli bilgiler veren invaziv olmayan bir uygulamadır. Bu nedenle bu hastalarda otonom sinir sisteminin uyumunu değerlendirmek için KHD ölçümleri yaygın olarak uygulanmaya başlamıştır. Ancak çalışmalar arasında belirli bir yöntem birliğinin olmaması, zaten yaygın bir heterojenite gösteren KHD sonuçlarının değerlendirilmesinde zorluklara yol açmaktadır. Bu amaçla, kliniğimize başvuran 28 vasovagal senkoplu olgu HUT testi sonuçlarına göre Kİ veVD tip olmak üzere iki gruba ayrılarak tüm gün, gece ve gündüz olmak üzere üç ayrı dönemde KHD ölçümleri yapıldı. Bu ölçümler 20 günlük propronalol tedavisi sonrası yinelendi. Kontrol grubunda KHD ölçümlerinde izlenen sirkadian ritim Kİ grubunda da izlenirken VD grubunda izlenmedi. Hem Ki hem de VD grubunun tüm gün kayıtlarından elde edilen KHD ölçümleri kontrol grubundan farklı bulunmadı. Vagal aktivasyonun göstergesi olan zaman bağımlı paramatreler (SDANN.rMSSD ve pNN50) he Kİ hem de VD grubunda kontrol grubundan anlamlı olarak yüksek bulunurken, sempatik aktivitenin göstergesi olan zaman bağımlı parametrelerden nLF değerleri gece ölçümlerinde VD grubunda kontrol grubuna göre daha yüksek bulundu. Tedavi ile her iki grupta da KHD ölçümlerinde anlamlı değişiklikler izlenmedi. Bu sonuçlar VD tip vasovagal senkoplu hastalarda otonomik balansın Ki tip senkoplu olgulara göre daha belirgin olarak bozulduğunu göstermektedir. 55
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- 2002
63. Nedeni bilinmeyen ve vazovagal senkoplarda kardiyak sempatik innervasyonun değerlendirilmesi
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Turan, Levent, Olguntürk, Rana, and Diğer
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Sympathetic nervous system ,Heart ,Syncope ,Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
56 ÖZET Vazovagal senkopun fizyopatogenezini araştırmak amacıyla, Ocak 1998- Ocak 1999 tarihleri arasında Gazi Üniversitesi Tıp Fakültesi Çocuk Sağlığı ve Hastalıkları Ana Bilim Dalı Çocuk Kardiyoloji Bilim Dalı'na başvuran, öykü, fizik incelme ve laboratuvar tetkikleriyle nedeni açıklanamayan 30 senkoplu çocuk hasta çalışmaya alındı. Hastaların altısı erkek, yirmidört tanesi kız ve yaş ortalamaları 12.2 idi. Hastalara 60°'de 45 dakikalık HUT testi protokolü uygulandı. HUT testi hastaların 13*ünde (%43.4) pozitif, 17'sinde (%56.6) negatif bulundu. Tüm hastalara, kardiyak sempatik innervasyonu incelemek için, 1-123 MIBG sintigrafisi uygulandı. Hastalara sabahleyin 80 MBq/1.7M2 IV olarak verildi ve 20. dakika ile 4. saatte planar görüntüleme yapıldı. HUT pozitif hastalarda, HUT negatif hastalara göre artmış kardiyak MIBG tutulumu izlendi. Sonuç olarak artmış sempatik innervasyonun vazovagal senkoplu hastaların ortostatik strese olan duyarlığından ve ortostatik stres altında ortaya çıkan paradoks refleksin (Bezold-Jarisch refleksi) başlamasından sorumlu olduğu kanısına varıldı. 1-123 MIBG kardiyak sintigrafi vazovagal senkoplu hastalardaki artmış sempatik innervasyonu göstermede, bu yolla vazovagal senkopun fizyopatolojisini aydınlatmada, non-invaziv ve yararlı bir yöntem olarak görülmektedir. 73
- Published
- 1999
64. Ankara kent merkezinde ilk ve ortaokullarda romatizmal kalp hastalığı prevalansı
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Aydin, Güzide Burça, Olguntürk, Rana, and Diğer
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Heart defects-congenital ,Ankara ,Students ,Rheumatic heart disease ,Çocuk Sağlığı ve Hastalıkları ,Child Health and Diseases - Abstract
ÖZET Akut romatizmal ateş ve romatizmal kalp hastalığı gelişmekte olan ülkelerde mortalite ve morbidite yönünden hala önemli bir halk sağlığı sorunudur. Ülkemizde romatizmal ateş epidemiyolojisi ile ilgili çalışmalar az sayıda ve bölgesel sağlık kayıtları ile küçük toplum çalışmalarına dayanmaktadır. Ankara 'da yapılmış tek prevalans çalışmasında 1975 ' te romatizmal kalp hastalığı prevalansı ortalama %o 6.6 bulunmuştur. Ankara 'da geçen 20 yılda romatizmal kalp hastalığı prevalansı değişmiş olacağı düşüncesi ile Ankara kent merkezinde 6-17 yaş arasındaki öğrenciler arasında romatizmal kalp hastalığı prevalansı araştırıldı. Ankara 'da ilk ve ortaokul öğrencileri arasında 6-17 yaşlarda romatizmal kalp hastalığı prevalansı %o 0.73, romatizmal ateş öyküsü prevalansı ( kümülatif prevalans ) %o 3.7 olarak bulundu. Köy okullarında romatizmal ateş öyküsü prevalansı %o 11.04, özel okullarda ise %o 4.29 bulundu. Çalışma grubundaki ailelerin ortalama aylık gelirleri 13.2 milyon TL olarak saptandı. Evde yaşayan kişi sayısı ortalama 4.91, evdeki oda sayısı ortalama 2.81 bulundu, bu değerler ile romatizma grubunun aylık gelir, evde yaşayan kişi ve evdeki oda sayısı ile arasında istatistiksel anlamlı ilişki saptanmadı. Sonuç olarak 20 yıllık sürede Ankara 'da romatizmal kalp hastalığı ve romatizmal ateş öyküsü prevalansında belirgin azalma saptandı. Ayrıca konjenital kalp hastalığı prevalansı %o 2. 9, masum üfürüm prevalansı ise %o 9. 3 bulundu. 65 80
- Published
- 1996
65. The effect of CYP2C9 and VKORC1 genetic polymorphisms on warfarin dose requirements in a pediatric population.
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Dilge Taşkın B, Kula S, Ergün MA, Altun D, Olguntürk R, Tunaoğlu FS, Oğuz AD, and Gürsel T
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- Adolescent, Anticoagulants adverse effects, Aryl Hydrocarbon Hydroxylases, Child, Child, Preschool, Female, Genotype, Humans, Infant, Male, Prospective Studies, Warfarin adverse effects, Anticoagulants administration & dosage, Cytochrome P-450 CYP2C9 genetics, Polymorphism, Genetic, Vitamin K Epoxide Reductases genetics, Warfarin administration & dosage
- Abstract
Objective: The aim was to investigate the frequency of genetic polymorphisms of cytochrome P4502C9 (CYP2C9) and vitamin K epoxide reductase complex subunit1 (VKORC1) and determine the effect of these polymorphisms on warfarin dose requirements in pediatric patients., Methods: Fifty-eight pediatric patients with cardiac disease, thrombophilia, or other conditions, taking a stable warfarin dose, aged 0.2-18 years, and with international normalized ratio (INR) between 2 and 3 and 149 healthy children as a control group were included in this prospective, observational study. Patients receiving drugs that interact with warfarin, having chronic liver or renal disease, obesity, or thyroid dysfunctions were excluded. Polymerase chain reaction (real time and restriction fragment length polymorphism) was used to analyze the CYP2C9*2, CYP2C9*3, and VKORC1 polymorphisms. The ideal warfarin dose was calculated according to the patient's age, height, and the presence of CYP2C9*2, CYP2C9*3, and VKORC1 genetic polymorphisms. The mean daily administered doses and ideal doses were compared. Analysis of variance, Student's t-test, logistic regression analysis, and Pearson's correlation analysis were used for statistical analyses., Results: The frequency of the CYP2C9 and VKORC1 genetic polymorphisms was determined as CYP2C9*1/*1 (54.6%), *1/*2 (16.4%), *1/*3 (24.2%), *2/*3 (2.9%), *3/*3 (1.9%), wild-type VKORC1 (26.6%), heterozygote alleles (52.7%), and mutant alleles (20.8%). Patients with allelic variants were found to require lower warfarin doses, and a 64.5% correlation was found between the calculated ideal doses and the administered warfarin doses., Conclusion: Considering CYP2C9 and VKORC1 genetic polymorphisms prior to commencing warfarin treatment will make it easier to reach target INRs and reduce the rate of complications.
- Published
- 2016
- Full Text
- View/download PDF
66. Evaluation of pulmonary vascular resistance and vasoreactivity testing with oxygen in children with congenital heart disease and pulmonary arterial hypertension.
- Author
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Cevik A, Kula S, Olguntürk R, Tunaoğlu S, Oğuz D, Saylan B, and Sanlı C
- Subjects
- Female, Humans, Infant, Male, Predictive Value of Tests, Heart Defects, Congenital, Hypertension, Pulmonary diagnosis, Oxygen, Vascular Resistance drug effects
- Published
- 2014
- Full Text
- View/download PDF
67. [Bilateral pulmonary thromboendarterectomy for chronic thromboembolic pulmonary hypertension: the youngest case in our region].
- Author
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Olguntürk R, Çevik A, Kula S, and Yıldızeli B
- Subjects
- Adolescent, Chronic Disease, Humans, Hypertension, Pulmonary etiology, Male, Pulmonary Embolism etiology, Pulmonary Embolism surgery, Radiography, Endarterectomy, Hypertension, Pulmonary diagnostic imaging, Pulmonary Artery surgery, Pulmonary Embolism diagnostic imaging, Ventriculoperitoneal Shunt adverse effects
- Abstract
The insertion of ventriculoatrial (VA) shunts for the treatment of hydrocephalus is associated with the development of chronic thromboembolic pulmonary hypertension (CTEPH). Chronic thromboembolic pulmonary hypertension occurs in patients with recurrent or chronic pulmonary embolism, and is a rare but, potentially devastating disease in children. Pulmonary thromboendarterectomy (PTE) is an important curative therapy for patients with CTEPH. Herein, we present a case of a 14 year-old male patient with CTEPH that developed after a VA shunt procedure. After successful PTE, systolic pulmonary artery pressure was decreased from 75 mmHg to 30 mmHg. PTE is recommended in the pediatric CTEPH population.
- Published
- 2013
- Full Text
- View/download PDF
68. [Homograft implantation to descending aorta for aortic coarctation repair].
- Author
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Ozdoğan ME, Iriz E, Erer D, Coşkun E, and Olguntürk R
- Subjects
- Aorta, Thoracic diagnostic imaging, Aortic Coarctation diagnostic imaging, Humans, Radiography, Transplantation, Homologous, Aorta, Thoracic transplantation, Aortic Coarctation surgery
- Published
- 2010
- Full Text
- View/download PDF
69. Early diagnosis of anthracycline toxicity in asymptomatic long-term survivors: dobutamine stress echocardiography and tissue Doppler velocities in normal and abnormal myocardial wall motion.
- Author
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Yildirim A, Sedef Tunaoglu F, Pinarli FG, Ilhan M, Oguz A, Karadeniz C, Olguntürk R, Oguz D, and Kula S
- Subjects
- Adolescent, Anthracyclines therapeutic use, Antibiotics, Antineoplastic therapeutic use, Cardiotonic Agents, Case-Control Studies, Child, Dobutamine, Early Diagnosis, Echocardiography, Doppler, Female, Humans, Male, Neoplasms drug therapy, Statistics, Nonparametric, Survivors, Young Adult, Anthracyclines adverse effects, Antibiotics, Antineoplastic adverse effects, Echocardiography, Stress, Heart Diseases chemically induced, Heart Diseases diagnostic imaging
- Abstract
Aims: Asymptomatic long-term cancer survivors treated with anthracycline were investigated for late anthracycline cardiotoxicity using dobutamine stress echocardiography (DSE) and tissue Doppler (TD) velocities., Methods and Results: The study comprised 20 asymptomatic patient and 18 healthy children as the control group. Twenty patients were divided into two groups according to the myocardial wall motion during DSE: Group 1 (normal myocardial wall motion; six girls and five boys) and Group 2 (abnormal myocardial wall motion: nine boys). Intravenous dobutamine infusion was started at a dose of 5 µg/kg/min (D5) and gradually increased to 10 (D10), 15 (D15) and 20 µg/kg/min (D20). Echocardiographic assessment was performed at rest and after each dose of dobutamine infusion. Abnormal myocardial wall motion was observed at rest in 3 patients and during DSE in six patients. There were no significant differences between the patients and control groups at rest except the end systolic wall stress and mitral deceleration time measured by conventional methods; however, both patients group showed significant differences of systolic and diastolic functions at D20. In patients groups, systolic and diastolic functions of interventricular septum (IVS) and systolic function of left ventricle (LV) and right ventricle (RV) TD velocities showed significant changes compared with control group at rest. Significant differences of diastolic functions of IVS and RV were noted during dobutamine infusion in abnormal myocardial wall motion compared with other groups., Conclusion: LV, RV and IVS TD velocities systolic function at rest and during DSE can provide valuable information for early detection of subclinical cardiac toxicity. TD velocities of diastolic functions during DSE are a valuable parameter for assessment of subclinical cardiac toxicity in patient with abnormal wall motion.
- Published
- 2010
- Full Text
- View/download PDF
70. Woven right and aneurysmatic left coronary artery associated with Kawasaki disease in a 9-month-old patient.
- Author
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Yildirim A, Oğuz D, and Olguntürk R
- Subjects
- Aortography, Coronary Aneurysm diagnosis, Coronary Angiography, Diagnosis, Differential, Echocardiography, Follow-Up Studies, Humans, Infant, Time Factors, Coronary Aneurysm etiology, Mucocutaneous Lymph Node Syndrome complications
- Abstract
Woven coronary artery disease is an extremely rare congenital abnormality with unusual findings of branching thin channels and distal reanastomosis. This pathologic finding was reported earlier in a few adult patients. In Kawasaki disease, coronary arterial system is commonly affected, which causes a necessity of cardiac imaging. We report a 9-month-old infant with Kawasaki disease in which left coronary artery aneurysm and woven right coronary artery were coincidentally detected during coronary angiography. After 1 year, coronary angiogram was re-performed and showed no changes in the coronary arteries. During the follow-up period of 4 years, the patient remained asymptomatic. In Kawasaki disease, there is a tendency for thrombus formation and a woven coronary artery can be easily misinterpreted as a thrombus. Woven coronary artery is a benign condition and it should not be confused with a thrombus or a stenosis related finding which needs a medical or surgical intervention.
- Published
- 2010
- Full Text
- View/download PDF
71. [The role of dobutamine stress echocardiography in early diagnosis of cardiac toxicity in long-term survivors of asymptomatic children treated with anthracycline].
- Author
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Yildirim A, Tunaoğlu FS, Pinarli FG, Ilhan M, Oğuz A, Karadeniz C, Olguntürk R, Oğuz D, and Kula S
- Subjects
- Anthracyclines therapeutic use, Antibiotics, Antineoplastic therapeutic use, Cardiotonic Agents, Case-Control Studies, Cross-Sectional Studies, Dose-Response Relationship, Drug, Early Diagnosis, Echocardiography, Stress, Female, Heart Diseases diagnostic imaging, Hemodynamics drug effects, Humans, Male, Neoplasms drug therapy, Risk Factors, Young Adult, Anthracyclines adverse effects, Antibiotics, Antineoplastic adverse effects, Dobutamine, Exercise Test drug effects, Heart Diseases chemically induced
- Abstract
Objective: Long-term survivors of asymptomatic children treated with anthracycline may have cardiac toxicity without clinical findings. The subclinical cardiac toxicity could be evaluated by dobutamine stress echocardiography (DSE) with exploring effective and safe doses of dobutamine., Methods: Twenty asymptomatic survivors (mean age: 19.2+/-4.0 years) treated with cumulative dose of 282.1+/-125.9 mg/m2 of anthracycline were compared with 18 age-matched healthy volunteers. Total time completed this treatment was 10.2+/-2.2 years. This was a cross-sectional case-controlled study and patient and control groups were evaluated at the time of routine appointments. Echocardiographic studies were performed before and after each dobutamine infusion of 5, 10, 15, 20 microg/kg/min., Statistical Analysis: Mann-Whitney U test was used to evaluate the difference between the groups. ANOVA for repeated measurements test was used to compare each measurement of control and patients groups and Bonferroni posthoc test was used for correction., Results: Hemodynamic changes are observed at the dobutamine doses of 15 microg/kg/min in the patient group. Before dobutamine infusion in the patient group only isovolumic relaxation and contraction times values were prolonged comparing to the control group. After the infusion of dobutamine ejection fraction, shortening fraction, left ventricular posterior wall thickening (%LVPWt), end-systolic wall stress (ESS), interventricular septum systolic thickening, left ventricular end-systolic and end-diastolic diameters, mitral acceleration (AT) and deceleration times values were deteriorated in the patient group compared to the control group (p=0.05 for all). The highest differences between the groups were observed in the %LVPWt, ESS and AT values at the end of test., Conclusion: The DSE is an effective and safe method to demonstrate the late anthracycline cardiotoxicity. Echocardiographic evaluation should be made at rest and dobutamine dose of 20 microg/kg/min. In the early diagnosis of late cardiac toxicity; assessment of %LVPWt, AT and ESS values in addition to standard echocardiographic examination could be the guidance for early diagnosis of late cardiac toxicity.
- Published
- 2010
- Full Text
- View/download PDF
72. Partial anomalous pulmonary venous return associated with coarctation of the aorta.
- Author
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Kula S, Sanli C, Oner AY, and Olguntürk R
- Subjects
- Aortic Coarctation physiopathology, Brachiocephalic Veins abnormalities, Child, Electrocardiography, Humans, Male, Aorta, Thoracic abnormalities, Aortic Coarctation etiology, Pulmonary Veins abnormalities, Subclavian Artery abnormalities
- Published
- 2010
- Full Text
- View/download PDF
73. Tissue and flow myocardial performance index measurements taken during dobutamine stress echocardiography for early diagnosis of late anthracycline cardiotoxicity.
- Author
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Yildirim A, Tunaoğlu FS, Pinarli FG, Ilhan M, Oğuz A, Karadeniz C, Olguntürk R, Oğuz D, and Kula S
- Subjects
- Adolescent, Adult, Case-Control Studies, Early Diagnosis, Female, Humans, Male, Myocardial Contraction, Anthracyclines adverse effects, Antibiotics, Antineoplastic adverse effects, Echocardiography, Stress, Heart Diseases chemically induced, Heart Diseases diagnostic imaging, Neoplasms drug therapy
- Abstract
The purpose of this study was to define the role of tissue and flow myocardial performance index (MPI) measured during dobutamine stress and tissue Doppler echocardiography in the early diagnosis of late cardiotoxicity among patients with childhood cancer treated with anthracycline. The study included 20 patients (14 male and 6 female; mean age 18.4 +/- 3.2 years) as the study group and 18 healthy volunteers (14 female and 4 male, mean age: 19.2 +/- 4.0) as the control group. The mean cumulative dose of anthracycline treatment was 282.1 +/- 125.9 mg/m2, and the mean time period after the last dose of anthracycline was 10.2 +/- 4.0 years. Echocardiography was performed during rest and at infusions of 5, 10, 15, and 20 micro/kg/min dobutamine. Although only isovolumetric relaxation and contraction times of the patient group were prolonged at rest, dobutamine infusion showed significant differences in % left ventricle (LV) posterior wall thickening, LV end-systolic wall stress, LV diastolic and systolic diameter, mitral acceleration, and deceleration time in the patient group compared with the control group. Tissue and flow MPI of the LV, tissue MPI of the right ventricle (RV), and interventricular septum of the patient group were higher than the control group throughout the test. LV tissue MPI increased much more than LV flow MPI when stress was increased. In conclusion, LV tissue MPI value during stress is more valuable than LV flow MPI in the early diagnosis of late cardiotoxicity. RV function can be assessed by tissue Doppler MPI.
- Published
- 2010
- Full Text
- View/download PDF
74. Distribution of syncopal episodes in children and adolescents with neurally mediated cardiac syncope through the day.
- Author
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Kula S, Olguntürk R, Tunaoğlu FS, and Saygili A
- Subjects
- Adolescent, Autonomic Nervous System physiopathology, Blood Pressure, Child, Female, Heart Rate, Humans, Hypotension, Orthostatic complications, Male, Syncope, Vasovagal diagnosis, Tilt-Table Test, Circadian Rhythm, Syncope, Vasovagal physiopathology
- Abstract
Aims: To assess the relation between the timing of syncopal attacks and tilt test positivity., Method and Results: Prospective comparisons of distribution of syncopal attacks in 49 consecutive neurally mediated cardiac syncope (NMCS) patients (19 boys, 30 girls, mean age 13.7+/-0.68) were evaluated. Head-up tilt test (HUT) was positive in 28 patients and negative in 21. A questionnaire was given to every patient about the time and number of the syncopal attacks, presyncopal symptoms or signs before HUT. Although syncopal attacks were found to be concentrated in the morning especially between 10 AM and 12 noon in HUT positive patients (P < 0.001), there was a concentration in the late afternoon and evening period of the day especially between 2 PM and 6 PM in HUT negative patients (P < 0.001)., Conclusion: It was assumed that diurnal variation in autonomic function may be the factor in the timing of syncopal events during morning hours in the HUT positive NMCS children and adolescents.
- Published
- 2005
- Full Text
- View/download PDF
75. Closure of atrial septal defects: the good, the bad and the ugly?
- Author
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Olguntürk R
- Subjects
- Humans, Catheterization adverse effects, Heart Septal Defects, Atrial therapy, Prostheses and Implants adverse effects
- Published
- 2005
76. Use of sildenafil with inhaled nitric oxide in the management of severe pulmonary hypertension.
- Author
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Saygili A, Canter B, Iriz E, Kula S, Tunaoğlu FS, Olguntürk R, and Ozdoğan ME
- Subjects
- Administration, Inhalation, Blood Pressure drug effects, Cardiomegaly complications, Cardiomegaly surgery, Child, Drug Administration Schedule, Electrocardiography methods, Heart Septal Defects, Ventricular complications, Heart Septal Defects, Ventricular surgery, Humans, Intubation, Intratracheal methods, Male, Piperazines administration & dosage, Postoperative Care methods, Purines, Severity of Illness Index, Sildenafil Citrate, Sulfones, Time Factors, Vasodilator Agents administration & dosage, Bronchodilator Agents therapeutic use, Hypertension, Pulmonary drug therapy, Nitric Oxide therapeutic use, Piperazines therapeutic use, Vasodilator Agents therapeutic use
- Published
- 2004
- Full Text
- View/download PDF
77. Effective regurgitant orifice area of rheumatic mitral insufficiency: response to angiotensin converting enzyme inhibitor treatment.
- Author
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Tunaoğlu FS, Olguntürk R, Kula S, and Oğuz D
- Subjects
- Administration, Oral, Adolescent, Adult, Angiotensin-Converting Enzyme Inhibitors pharmacology, Cardiac Volume drug effects, Cardiotonic Agents administration & dosage, Child, Digoxin administration & dosage, Drug Administration Schedule, Echocardiography, Doppler, Enalapril pharmacology, Female, Humans, Male, Mitral Valve Insufficiency diagnostic imaging, Prospective Studies, Rheumatic Heart Disease diagnostic imaging, Stroke Volume drug effects, Treatment Outcome, Angiotensin-Converting Enzyme Inhibitors administration & dosage, Enalapril administration & dosage, Mitral Valve Insufficiency drug therapy, Rheumatic Heart Disease drug therapy
- Abstract
Objective: This study was designed for quantification of mitral regurgitation by echocardiographic measurements such as regurgitant volume (RV), regurgitant fraction (RF) and effective regurgitant orifice area (EROA), and to assess the effect of angiotensin converting enzyme inhibitor (ACEI) therapy on these measurements., Methods: Patients with rheumatic mitral insufficiency were divided into two groups: Study group (SG)-10 females, 2 males, aged 10-18 years, body surface area 1.49+/-0.05 m2, receiving digoxin therapy for at least one year and Control group (CG)-8 females, 4 males, aged 8-17 years, body surface area 1.38+/-0.07 m2, with no treatment. Patients in the two groups had no symptoms of cardiac failure. Angiotensin converting enzyme inhibitor therapy was given to SG patients on admission. Echocardiographic examinations were applied on admission and at the 20th day of therapy with ACEI and digoxin., Results: Study group's left ventricular end-diastolic volume (108.03+/-41.21 ml/m2), mitral stroke volume (510.37+/-321.58 ml/m2) and regurgitant volume (423.48+/-305.00 ml/m2) were significantly higher (p<0.05) on admission than in the CG (81.98+/-21.53 ml/m2, 315.34+/-207.38 ml/m2 and 245.77+/-179.84 ml/m2, respectively). Aortic stroke volume at the 20th day of therapy was significantly higher in SG than in the CG. Therapy with ACEI decreased significantly SG's left ventricular end-diastolic volume., Conclusion: Angiotensin converting enzyme inhibitors should be started at an early stage of mitral regurgitation. The effective regurgitant orifice area is a feasible and easy method for the outpatient follow-up of mitral regurgitation.
- Published
- 2004
78. Noncompaction with arcus aorta anomalies.
- Author
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Tunaoğlu FS, Kula S, Olguntürk R, and Oztürk G
- Subjects
- Brain diagnostic imaging, Electrocardiography, Fatal Outcome, Female, Humans, Infant, Radiography, Tetralogy of Fallot diagnostic imaging, Ultrasonography, Brain abnormalities, Intellectual Disability complications, Tetralogy of Fallot complications
- Abstract
An 18-month-old girl with tetralogy of Fallot (TOF), mental retardation and multiple infarcts on brain computerized tomography (CT) is presented. Her sineangiocardiograms showed a thrombus (moving from the left ventricle to ascending and abdominal aorta), TOF, right arcus aorta with anomalous origin of left subclavian artery from the descending aorta, honeycombed appearance of the apex and half of the posterior wall of left ventricle and the apex of right ventricle. Her echocardiography (ECHO) examinations revealed depressed left ventricular systolic function and thrombus in the left ventricle apex, with noncompaction of the left ventricle apex and the middle portion of posterior wall, and in the right ventricular apex.
- Published
- 2003
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