Are There Differences in the Anthropometric, Hemodynamic, Hematologic, and Biochemical Profiles between Late- and Early-Onset Preeclampsia?

Figure 2

Doppler velocimetry of ophthalmic artery (OA), with identification of the pulse wave velocity (PWV) of the OA. The X-axis represents the time (seconds), and the Y-axis represents the flow velocity (cm/s). A rapid increase in velocity is observed, with a peak systolic velocity (PSV), followed by a rapid fall, and a new velocity rise with the formation of a second rounded systolic peak (P2), followed by the aortic notch, which closes the systolic cycle. Then, there is an increase in velocity with formation of the diastolic phase of the PWV, which ends with the end-diastolic velocity (EDV). The P2/PSV ratio is referred to as peak ratio [17].