A case report: 201Tl/99mTc-Pyrophosphate dual-isotope myocardial SPECT for detecting annular subendocardial infarction induced by a transient shock.

The patient was a 74-year-old woman with angina pectoris, who had undergone percutaneous coronary intervention with stent placement in the right coronary artery on October 2, 2007. On November 12 of the same year, she suffered from paroxysmal atrial fibrillation. She was treated with pilsicainide hydrochloride administered by intravenous injection, which was followed by a sudden sinus standstill, with marked bradycardia and a shock state.

Change of the complexity of coronary artery disease after percutaneous coronary intervention with drug-eluting stent.

We investigated changes of the complexity of coronary artery disease (CAD) after drug-eluting stent (DES) implantation using SYNTAX score and the predictor of worsened SYNTAX score at follow-up. 116 consecutive patients who underwent de novo PCI with first-generation DES were enrolled. SYNTAX scores were obtained from coronary angiography before PCI, just after final PCI and at follow-up after 6-8 months and investigated.

An assessment of risk factors for the complexity of coronary artery disease using the SYNTAX score.

In 2005, the SYNTAX score was reported as "an angiographic tool grading the complexity of coronary artery disease". We investigated risk factors for the complexity of coronary artery disease (CAD) using SYNTAX scores in patients with new-onset CAD. The subjects were 359 consecutive cases that underwent de novo percutaneous coronary intervention (PCI) or coronary artery bypass graft surgery without previous PCI history.

Fractional flow reserve in a patient with intermediate coronary stenosis and hypertrophic cardiomyopathy.

We discuss the case of a 61-year-old male patient with hypertrophic cardiomyopathy and chest pain on exertion. Coronary angiography and intravascular ultrasound revealed an intermediate stenosis in the proximal site of the left anterior descending artery, while Tc-99m myocardial scintigraphy revealed exercise-induced myocardial ischemia in the anteroseptal wall and apical portion. Flow velocity-derived coronary flow reserve (CFR) and pressure-derived fractional flow reserve (FFRmyo) were both low (1.