Pleiotropic Effects of Losartan in Hypertensive Patients with Dyslipidemia

In essential hypertension, the comorbidity of dyslipidemia is very common. In addition to hypertension, dyslipidemia is linked to cardiovascular disease, stroke and decline in renal function. Unlike other angiotensin receptor blockers, Losartan has been claimed to have unique pleiotropic property and thereby decreasing the risk of future cardiovascular complications.

The present study was done to assess on the pleiotropic effect of losartan in newly diagnosed hypertensive patients with dyslipidemia.

Fifty four hypertensive patients with dyslipidemia who fulfilled the eligible criteria and were willing to give informed consent were included in the study after getting Institutional Ethical Committee (IEC) approval. All the study participants were given tab. Losartan 50mg once daily for four weeks. At the end of 1st, 2nd, 3rd and 4th week, blood pressure control and compliance were monitored. At the end of 4th week all the baseline laboratory parameters like renal function test, liver function test, lipid prolife and random blood sugar were performed. The EQ-5D questionnaires were completed at two points during the study: at the patient's initial visit before enrollment in the study and after 4 weeks of Losartan therapy. Appropriate statistical methods were used to analyse the results.The primary endpoint was reduction in blood pressure and improvement in lipid profile and improvement in quality of life score from baseline after 4 weeks of losartan therapy.

Four patients were withdrawn due to non-compliance and totally 50 patients completed the study. The mean systolic blood pressure was reduced from 154.54 mm Hg to 138.16 mm Hg with p<0.0001 and the mean diastolic blood pressure was reduced from 91.56 mm Hg to 82.44 mm Hg with p<0.0001. There was a significant reduction in the mean total cholesterol from 189.52 to 180.46 mg/dl, mean LDL from 110.50 to 101.32 mg/dl and mean triglygeride from 135.68 to 127.70 mg/dl with p<0.0001. Improvements in anxiety and depression, as well as other dimensions in the QOL questionnaire, paralleled with improvement of the clinical picture.

Based on the results of this study, Losartan is safe and effective in treating hypertensive patients with dyslipidemia in addition to its antihypertensive effect and it also has benefits of reducing serum glucose, lipid levels; and improvement in the quality of life.