Genotype Analysis of the JR Blood Group in an East Asian Population Using Tetra-Primer ARMS-PCR.

Objective: The JR blood group system, officially designated ISBT JR 032, consists of a single antigen called Jr. This is a high frequency antigen in most populations. The Jr(a-) phenotype is more prevalent in Japanese and Asian populations.

Usefulness of intraoperative real-time three-dimensional transesophageal echocardiography in preprocedural evaluation of cortriatriatum -a case report-.

Cortriatriatum is a rare congenital cardiac disorder with fibromuscular band (diaphragm) dividing the left atrium (LA) into the proximal and distal parts. Surgical correction of cortriatriatum requires full preoperative evaluation of the structural anomalies including the LA diaphragm and their pathophysiology. In the present case, a 44 year-old lady diagnosed as cortriatriatum underwent surgical correction.