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Author: J Ranjit Arnold (6)



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May
2016

Pheochromocytoma is associated with catecholamine-induced cardiac toxicity, but the extent and nature of cardiac involvement in clinical cohorts is not well-characterized.
This study characterized the cardiac phenotype in patients with pheochromocytoma using cardiac magnetic resonance (CMR).
A total of 125 subjects were studied, including patients with newly diagnosed pheochromocytoma (n = 29), patients with previously surgically cured pheochromocytoma (n = 31), healthy control subjects (n = 51), and hypertensive control subjects (HTN) (n = 14), using CMR (1.

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May
2011

Absolute quantification of perfusion with cardiovascular magnetic resonance has not previously been applied in patients with coronary artery bypass grafting (CABG). Owing to increased contrast bolus dispersion due to the greater distance of travel through a bypass graft, this approach may result in systematic underestimation of myocardial blood flow (MBF). As resting MBF remains normal in segments supplied by noncritical coronary stenosis (<85%), measurement of perfusion in such territories may be utilized to reveal systematic error in the quantification of MBF.

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Sep
2010

To evaluate the accuracy of adenosine myocardial contrast echocardiography (MCE) in diagnosing coronary artery disease (CAD).
Adenosine stress echocardiography is not routinely used in the assessment of CAD. Since ultrasound microbubble contrast agents enable improved wall motion analysis and simultaneous assessment of myocardial perfusion, we sought to evaluate the diagnostic performance of combined wall motion/perfusion imaging with adenosine MCE in patients with suspected CAD.

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Mar
2009

Informed consent for emergency coronary artery bypass grafting (CABG) is routinely obtained from patients undergoing percutaneous coronary intervention (PCI) and diagnostic angiography. Given the recent technological and pharmacological advances as well as increasing operator experience, we sought to assess the contemporary incidence of emergency CABG following PCI in our centre. In a total of 7855 consecutive PCIs, the overall rate of emergency CABG was 0.

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