Role of adenosine Stress CMR before Chronic Total Occlusion reopening
نویسندگان
چکیده
Methods 70 CTO patients without any other relevant coronary artery stenosis (or already treated if present at baseline angiography), underwent an adenosine stress CMR before a reopening attempt. ECG and echocardiographic (echo) data were available for all. Patients were considered suitable for the reopening procedure in case of myocardial ischemia and / or viable myocardium subtended to the CTO. Presence of a previous myocardial infarction (MI) was defined at ECG: Q waves > 40 msec; at echo: akinetic areas with reduced wall thickness; at stress MR: presence of ischemic Late gadolinium Enhancement. Presence of myocardial ischemia was defined as a subendocardial perfusion defect lasting for at least 4 heart beats during adenosine infusion in a segment without LGE.
منابع مشابه
Prediction of recovery after revascularization in chronic Coronary Total Occlusion (CTO) patients. Adenosine or low-dose dobutamine stress with LGE CMR: which is the best combination?
Background Recanalisation of chronic total occlusion (CTO = coronary occlusion > 3 months with a TIMI flow grade 0), is one of the most challenging PCI procedure with specific complications. Eventhough LGE-CMR is routinely used to assess viability, it does not assess ischemic status or inotropic reserve of regions surrounding scar lesions that are particularly at risk of jeopardy in patients wi...
متن کاملRole of adenosine stress perfusion CMR in guiding clinical decision making in pediatric and congenital cardiology: a single pediatric center experience
Background Compared to adults, coronary artery disease abnormalities, significant enough to warrant viability assessment and adenosine stress perfusion cardiac magnetic resonance (CMR) imaging, are rare in pediatric patients. As a result, the role of adenosine stress perfusion CMR as a routine clinical imaging tool in these patients has not been clearly defined. We aim to evaluate the impact cl...
متن کاملEffects of caffeine on the detection of ischemia in patients undergoing adenosine stress cardiovascular magnetic resonance imaging
BACKGROUND Adenosine stress cardiovascular magnetic resonance (CMR) can detect significant coronary artery stenoses with high diagnostic accuracy. Caffeine is a nonselective competitive inhibitor of adenosine2A-receptors, which might hamper the vasodilator effect of adenosine stress, potentially yielding false-negative results. Much controversy exists about the influence of caffeine on adenosin...
متن کاملCardiovascular magnetic resonance findings in repaired anomalous left coronary artery to pulmonary artery connection (ALCAPA)
BACKGROUND Anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA) is a rare coronary artery anomaly. This study shows the role of cardiovascular magnetic resonance (CMR) in assessing young patients following surgical repair of ALCAPA. METHODS 6 patients, aged 9-21 years, with repaired ALCAPA (2 Tackeuchi method, 4 direct re-implantation) underwent CMR because of clini...
متن کاملChronic total occlusion and successful drug-eluting stent placement in Takayasu arteritis-induced renal artery stenosis.
Takayasu arteritis-induced renal artery stenosis (TARAS) is a condition rarely described in the literature. Although percutaneous transluminal angioplasty and stenting has been well-described in the treatment of atherosclerotic renal artery stenosis, its role has not been established in non-atherosclerotic TARAS. We report a case of a female, age 17 years, with Takayasu arteritis who presented ...
متن کامل