Abstract:Objective To explore the application value of color Doppler ultrasound in quantitative assessment of myocardial injury in pregnancy-induced hypertension(PIH) patients. Methods A total of 78 PIH women from March 2016 to December 2018 were selected and designed as PIH group,and 50 healthy pregnant women during the same time period were served as control group.The left atrial morphological parameters,cardiac function and pericardial effusion were observed and compared between two groups. Results The left atrial anteroposterior diameter (LAD),maximum left atrium volume (LAV_max),minimum left atrium volume (LAV_min),and left atrial pre-systolic volume (LAV_pre) in PIH group were significantly higher than those in control group,while the left atrial ejection fraction (LAEF),left atrial active ejection fraction (LAAEF) and left atrial passive ejection fraction (LAPEF) were significantly lower than those in control group (all P<0.05).The left atrial(LA) global longitudinal peak strain (LA-GLPS),LA systolic strain rate (LASRs),LA early diastolic strain rate (LASRe) in PIH group were significantly lower than those in control group (P<0.05),but there was no significant difference on LA late diastolic strain rate (LASRa) between two groups (P>0.05).The incidence of pericardial effusion in PIH group was significantly higher than that in control group (15.38% vs 4.00%,P<0.05). ConclusionDoppler color ultrasound can quantitatively evaluate the left atrial morphology and cardiac function of PIH pregnant women and is important for clinical diagnosis of myocardial injury.