Journals / Türk Girişimsel Kardiyoloji Derg. / 2010 / Cilt: 14 - Sayı: 1

Restenosis and unstable angina frequency after coronary stenting of saphenous vein grafts

Safen ven greft lezyonlarına uygulanan stent sonrası gelişen restenoz ve anstabil angina sıklığı

Pages
5–12
Publication Date
2022-11-05
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

To find the frequency of restenosis with PTCA in vein graft and to investigate the risk factors of unstable angina will be the goals of our research.

📌 3 Key Takeaways

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Objective & Hypothesis:Degenerative changes in autotransplant are the reasons for using graft through the veins of the lower extremity (v. saphena magna) in coronary artery by-pass (CABG).Approximately, 30% of degenerative changes took place in venous graft in the period of one year; later there was a significant increase in the relapse rate.
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Key Findings & Data:In addition, perioperative of myocardial infarction carries a large risk for reoperation (MI), and cardiovascular complications have significantly decresed In the treatment of graft lesions, the success rate in percutaneous transluminal coronary (PTCA) intervention is 90% .
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Conclusion & Impact:To find the frequency of restenosis with PTCA in vein graft and to investigate the risk factors of unstable angina will be the goals of our research.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Degenerative changes in autotransplant are the reasons for using graft through the veins of the lower extremity (v. saphena magna) in coronary artery by-pass (CABG).Approximately, 30% of degenerative changes took place in venous graft in the period of one year; later there was a significant increase in the relapse rate. According to re-CABG surgery, this further operation is accompanied by high mortality . In addition, perioperative of myocardial infarction carries a large risk for reoperation (MI), and cardiovascular complications have significantly decresed In the treatment of graft lesions, the success rate in percutaneous transluminal coronary (PTCA) intervention is 90% . Hospital mortality does not exceed 1%, myocardial infarction is less than 4%, and the emergency coronary artery by-pass requirement is approximately 2%. However, an expanded segment with graft is 42% - in 61 patients restenosis appeared over a six month period.It is well known that there is a risk of more immediate clinical events after unstable angina (NS) than after stable angina (SA). Unfortunately, in patients with vein graft, restenosis is generally defined as a form of unstable angina. To find the frequency of restenosis with PTCA in vein graft and to investigate the risk factors of unstable angina will be the goals of our research.

Özet

Bu araştırmada, venöz greftte yapılan perkütan translüminal koroner anjiyoplasti (PTKA) işlemi sonrası gelişen restenoz ve anstabil angina risk faktörleri incelenmiştir. Çalışmaya katılan 156 hastadan, 147'sine transluminal anjioplastı işlemi başarı ile uygulanmıştır. Yaklaşık olarak 36 aylık (17±11 ay) izlemde hastaların %24'ünde venöz greft restenozundan dolayı anstabil anjinanın geliştiği gözlenmiştir.Kararsız anjina grubundaki hastalarda, hiperlipidemi diğer gruba göre çok yüksekti (%83 karşı %51). Bununla birlikte kararsız anginalı gruba daha az stent takıldı (%46'ya karşı %72, p=0,032) ve anstabil anjinalı grupta rezidüel stenoza daha sık rastlandı (%15±%13'e karşı %9±%8, p=0,008). Çok faktörlü regresyon analizinde hiperlipidemi (ods testi =3,55, 95% ve güven aralığı testi= 1,64-8,39, p=0,002) ve işlem sonrası oluşan rezidüelstenoz(ods testi =1,04, 95% güven aralığı testi= 1,01-1,07, p=0,04) restenoz sonrası meydana gelen anstabil anjinada önemli bir belirleyici olduğu belirlendi. Yapılan alt grup çalışmasında hiperlipidemili hastalarda statin alan ve almayanlar arasında anstabil anjina görülme yüzdelerinde anlamlı bir fark görülmedi (%50'ye karşı %29, p=0,083). Bu bulgular ışığında, venöz greft stenozlarında perkütan translüminal koroner anjiyoplasti ile yapılan dilatasyon sonucu hastaların %25'inde anstabil anjina geliştiği saptandı. Hiperlipidemili hastalarda restenoz ve anstabil anjina daha sık geliştiği izlenmiştir.

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Cite This Article

BATYRALİEV, T., ABDRAMANOV, K., KOÇAK, A., NİYAZOVA-KARBEN, Z., AVŞAR, Ö. (2022). Restenosis and unstable angina frequency after coronary stenting of saphenous vein grafts. Türk Girişimsel Kardiyoloji Derg., Cilt: 14 - Sayı: 1, 5–12. https://ajindex.com/articles/624445

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