Conclusion
Infants with severe CP associated with the umbilical cord troubles were characterized as sudden onset during the first stage of labor. Around half of those due to cord morphological abnormalities were presumed to have an antenatal onset. Prenatal ultrasound screening and meticulous FHR monitoring during the first stage of labor are crucial for early intervention. Focusing on Hon’s pattern may help prevent CP in case velamentous insertion and multiple entanglements exist.