Evaluation of left ventricular regional systolic functions in patients with coronary artery disease by two-dimensional strain imaging: a velocity vector imaging study

İstanbul Bilim Üniversitesi, Tıp Fakültesi.Amaç: Bu çalışmada, koroner arter hastalığında (KAH) sol ventrikül (SV) bölgesel sistolik fonksiyonları yeni bir gerilim (strain) görüntüleme yöntemi olan hız vektör görüntüleme (HVG) ile değerlendirildi. Çalışma planı: Çalışmaya KAH tanısı konan 69 hasta (51 erkek, 18 kadın; ort. yaş 59.2±10.3) ve 30 sağlıklı gönüllü (22 erkek, 8 kadın; ort. yaş 58.1±13.8) alındı. Hastaların 33’ünde geçirilmiş miyokart enfarktüsü (ME) vardı. Tüm hastalarda, Amerikan Kalp Birliği’nin 16 segment modeli kullanılarak SV bölgesel duvar hareketleri (akinetik, hipokinetik ve normokinetik) belirlendi. Ayrıca, HVG yöntemi kullanılarak, SV’ye ait tüm segmentlerin zirve sistolik gerilimi (strain), gerilim hızı (SRs) ve segmenterejeksiyon fraksiyonları (SEF) hesaplandı.Objectives: The aim of the study was to assess left ventricular (LV) regional systolic functions in coronary artery disease (CAD) using a novel strain imaging method, namely, velocity vector imaging (VVI). Study design: The study included 69 patients (51 men, 18 women; mean age 52.9±10.3 years) with CAD and 30 healthy volunteers (22 men, 8 women; mean age 58.1±13.8 years). Thirty-three patients had previous myocardial infarction (MI). In all the patients, LV wall motions were analyzed as akinetic, hypokinetic, or normokinetic using the 16-segment model of the American Heart Association. In addition, LV peak systolic strain, strain rate (SRs), and segmental ejection fraction (SEF) of all the segments were calculated by using VVI

Tromboze olmuş dev sağ koroner arter anevrizması

İstanbul Bilim Üniversitesi, Tıp Fakültesi.A 50-year-old male patient, without previous history, presented with prolonged precordial pain following moderate exercise. He was transferred to a local hospital, where acute coronary syndrome (ACS) was diagnosed and was treated with conventional (aspirin, β-blockers, nitrates, heparin) treatment. His recovery was uncomplicated and he left the intensive care unit 48 hours later. He was discharged from the hospital 7 days later and the following treatment was prescribed: β-blocker, angiotensin converting enzyme inhibitor, statin, and aspirin. The patient was a smoker (60 packs per year), presented dyslipidemia and had no positive family history of coronary artery disease. After his release from the hospital, he was admitted to our hospital for cardiac catheterization without any symptoms. He was hospitalized as planned, two weeks following the ACS and underwent coronary angiography. Coronary angiography showed normal left main coronary artery, left anterior descending artery and left circumflex artery