CYANOSIS implies no more than a bluish color. It may be caused by several etiologic mechanisms, including congenital heart disease, methemoglobinemia, and vascular stasis.
We have recently seen several infants who presented with cyanosis of the upper extremities when carried on the backs of their mothers in an "obui-himo," a device used in Japan for carrying infants and young children. In the past two years we have studied eight cases of this syndrome, four of which had venography revealing a circulatory obstruction due to a congenital anomaly of the veins of the upper arms.
We can find no description in the pediatric literature of symptoms related to a comparable anomaly of veins of the arms.
Report of Cases
Case 1.—A 6-month-old Japanese male infant was admitted because of cyanosis of his right arm, occurring whenever he was carried in an obui-himo. This was noted from age 4 months when he