Background: Severe preeclampsia (PE) and eclampsia are a hypertensive disease of pregnancy associated with significant morbidity and mortality and require special monitoring. Lung ultrasonography and transthoracic echocardiography are a novel monitoring and diagnostic tools in intensive care and are widely used nowadays. Objective: To detect the role and value of transthoracic echocardiography (TTE) in postoperative monitoring in patients with severe PE. Patients and Methods: This was a cross sectional study of 55 patients with severe preeclampsia, 35 patients with eclampsia and 60 healthy controls. Transthoracic echocardiography was done to evaluate diastolic function using E/A ratio with continuous wave Doppler, ejection fraction using M mode in long axis parasternal view and inferior vena cava (IVC) diameter in subcostal view. All measurements were done postoperatively. Results: There was significant difference between the 3 groups regarding diastolic function (p value 0.0001). Abnormal diastolic function in severe PE, eclampsia and controls was 81.2%, 94.3% and 5% respectively. There was no difference between the 3 groups of the study as regard IVC diameter. There was significant difference between the 3 groups as regards EF (P=0.007), the mean of EF in severe PE, eclampsia and controls was 66.89 ± 5.54, 63.029 ± 8.45 and 66.43 ± 4.16 respectively. Conclusions: The use of transthoracic echocardiography is mandatory in postoperative monitoring in patients with severe PE and eclampsia as they can adjust management and detect complications. Restricted fluid therapy policy is indicated with the higher grades of diastolic dysfunction and lower ejection fraction (EF).