A Clinical Study of Low Molecular Weight Heparin Sodium Injection Combined with Magnesium Sulfate Injection and Labetalol Tablets in the Treatment of Severe Pregnancy-Induced Hypertension

Objective: To investigate the clinical effect of low molecular weight heparin sodium injection combined with magnesium sulfate injection and labetalol in the treatment of severe pregnancy-induced hypertension. Methods: A total of 48 patients with severe pregnancy-induced hypertension admitted from February 2021 to February 2023 were selected, and the patients were divided into two groups by simple sampling, with 24 cases in each group. Patients in the control group received labetalol orally and intravenous infusion of magnesium sulfate, whereas those in the observation group received subcutaneous injection of low molecular weight heparin sodium on the basis of the control group. The two groups of patients underwent 5 days of treatment, and the blood pressure control, vascular endothelial function, renal function, and blood coagulation were compared between the two groups. Results: Before treatment, there were no significant differences in blood pressure readings, endothelin-1 (ET-1) and nitric oxide (NO) levels, serum creatinine (SCr) and blood urea nitrogen (BUN) levels, and the four coagulation indices between the two groups (all P > 0.05). After treatment, the blood pressure readings in the observation group were lower than those in the control group (P < 0.05); ET-1 in the observation group was lower than that in the control group, and the NO level in the observation group was higher than that in the control group (P < 0.05); compared with the control group, the observation group had lower SCr and BUN (P < 0.05), longer prothrombin time (PT), activated partial thromboplastin time (APTT), and thrombin time (TT), and lower fibrinogen (Fib) level (P < 0.05). Conclusion: Low molecular weight heparin sodium injection combined with magnesium sulfate injection and labetalol in the treatment of severe pregnancy-induced hypertension can help control blood pressure levels, promote the recovery of vascular endothelial function and renal function, and effectively correct coagulation function.