Industrial separation of oxygen isotopes by oxygen distillation.

O-labeled water (Water- O) is a widely used starting material of F-labeled diagnostic agents in positron emission tomography (PET). Conventionally, Water- O has been separated from other stable oxygen isotope species ( O, O) by water distillation or nitric oxide distillation. However, conventional methods are costly and may have safety issues.

Detection of Pediatric Pulmonary Arterial Hypertension by School Electrocardiography Mass Screening.

To detect pulmonary arterial hypertension (PAH) at any early stage is a promising approach to optimize the outcome. To investigate the impact of school ECG-based screening on detecting idiopathic or heritable (I/H)-PAH in the general pediatric population. This was a nationwide survey of patients with I/H-PAH newly diagnosed at 3 months to 18 years of age in Japan during 2005-2012.

Importance of evaluation of the right coronary artery by two-dimensional echocardiography in patients after Kawasaki disease: a right parasternal approach.

We report the importance of evaluating the right coronary artery (RCA) by two-dimensional echocardiography (2DE) in the acute phase of Kawasaki disease (KD), based on our experience with three patients whose coronary artery lesions (CAL) involving the RCA were missed in the acute phase of KD. Two patients had asymptomatic occlusion of the RCA, and it was speculated that one patient had a cardiac arrest due to CAL of the RCA. An abnormal Q wave in lead III in all 3 patients had indicated stenotic lesions of the RCA.

The incidence and characteristics of supraventricular tachycardia in left atrial isomerism: a high incidence of atrial fibrillation in young patients.

Background: In left atrial isomerism (LAI), both atria show left atrial morphology. Although bradyarrhythmias are frequent and highly complex in LAI patients, previous studies have reported a low incidence of supraventricular tachycardia (SVT).

Methods: To evaluate the incidence and characteristics of SVT in LAI, we retrospectively evaluated the clinical characteristics of SVTs in 83 patients with LAI (age at last follow-up, 15.