The association between labor epidural analgesia and early-onset postpartum hypertension among parturients with hypertensive disorders of pregnancy: A retrospective cohort study.

Background: This study aimed to investigate the association of different durations of labor epidural analgesia (LEA) on early-onset postpartum hypertension (PPHTN) among parturients with hypertensive disorders of pregnancy (HDP).

Methods: We conducted a retrospective cohort study in which patients who were diagnosed with hypertensive disorders of pregnancy between 2018 and 2023. The parturients who received LEA were divided into three groups based on the tertiles of LEA duration: the short-duration group (< 175 minutes), the medium-duration group (175-324 minutes), and the long-duration group (≥ 325 minutes), while parturients who did not receive LEA forming the control group.

[HPLC fingerprint of scrophulariae radix from southwest China].

Objective: To establish HPLC fingerprints of Scrophulariae Radix methanol extract from both the different southwest origin and market, provide evidence for its quality control.

Methods: 11 batches of samples analysis was performed on C18 column with gradient mobile phase of acetonitrile-0.4% acetic acid, the monitoring wavelength was at 260 nm with the flow rate of 1.