多田 克彦¹, 山田 聡¹, 熊澤 一真¹, 高田 雅代¹, 中田 高公¹, 増山 寿¹, 中塚 幹也¹, 工藤 尚文¹, 大月 審一²

Katsuhiko TADA¹, Satoshi YAMADA¹, Kazumasa KUMAZAWA¹, Masayo TAKADA¹, Takakimi NAKATA¹, Hisashi MASUYAMA¹, Mikiya NAKATSUKA¹, Takafumi KUDO¹, Shin-ichi OTSUKI²

¹岡山大学医学部産科婦人科学教室, ²岡山大学医学部小児科学教室

¹Department of Obstetrics and Gynecology Okayama University Medical School, 2-5-1 Shikata-cho, Okayama-shi, Okayama-ken 700-8558, Japan, ²Department of Pediatrics Okayama University Medical School, 2-5-1 Shikata-cho, Okayama-shi, Okayama-ken 700-8558, Japan

キーワード : Aortic and pulmonary diameters, Color Doppler ultrasonography, Fetal echocardiography, Hypoplastic left heart syndrome, Prenatal diagnosis

We diagnosed hypoplastic left heart syndrome in a 26-week-old fetus using fetal echocardiography. Color Doppler ultrasonography was helpful for evaluating the structural abnormalities. The diameters of the aorta and the pulmonary artery were measured periodically from 26 to 38 weeks of gestation. Aortic diameter was below the normal range throughout gestation. The diameter of the pulmonary artery was normal at 26 weeks of gestation but gradually dilated and was abnormally dilated after the 36th week of gestation. Here we discuss the cause of enlarged pulmonary artery in fetal hypoplastic left heart syndrome.