Metastatic cardiac liposarcoma is extremely rare, with only 2 cases previously reported, to our knowledge; of those, only 5 involved surgical resection of right ventricular liposarcoma. The first such case in Japan involved a 61-year-old woman with metastatic liposarcoma of the right ventricle. Despite emergency resection, the patient died of severe congestive heart failure 6 days after operation. Her history included surgery for liposarcoma in the right knee 11 years previously, although it is very difficult to predict that metastasis would proceed thereafter to the cardiac cavity. This rare case suggests, however, that follow-up including examination for cardiac lesions is necessary long after resection of the primary lesion.

Circulation Journal Official Journal of the Japanese Circulation Society http://www. j-circ.or.jp tent implantation in percutaneous coronary intervention (PCI) was a common procedure for both stable angina and acute coronary syndrome. 1 According to a previous report, implantation of a drug-eluting stent is well known to cause a low rate of coronary restenosis (approximately 8%) following PCIs. 2 However, detection of coronary restenosis after stent implantation is a still critical issue. Electrocardiogram (ECG)-gated myocardial perfusion single-photon emission computed tomography (SPECT) with exercise or pharmacological stress allows for the detection of coronary stenosis by demonstrating myocardial ischemia and regional wall motion abnormality. 3-6 A recent development of quantitative gated SPECT (QGS) software allows quantitative measurement of left ventricular diastolic function as described by time to peak-filling (TTPF) using 16-frame ECG-gated SPECT. 7,8 Left ventricular diastolic dysfunction is an early marker of coronary artery disease, diabetes mellitus and hypertension. 9-11 Conversely, left ventricular diastolic dysfunction might improve immediately after successful PCI. 12 We measured TTPF and calculated the TTPF/R-R interval in Background: Usefulness of diastolic dysfunction after adenosine stress for detecting coronary stenosis has not been defined. The diagnostic accuracy of a combination of myocardial perfusion and diastolic function, as defined by prolongation of time to peak-filling rate (TTPF)/R-R and myocardial perfusion alone for the detection of coronary restenosis, was evaluated.

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