Table 4.
Highlights of the study | Clinical conditions | Drug formulation and dosage | Clinical outcome | References |
---|---|---|---|---|
Idiopathic and ischemic cause | 93 patients with dilated cardiomyopathy (DCMP) of idiopathic and ischemic cause | T. arjuna capsules (500 mg at 8 hourly) | Patients with dilated cardiomyopathy with or without heart failure and reduced left ventricular ejection fraction due to either idiopathic or ischemic cause receiving combined standard therapy, and herbal medication showed significant improvement in systolic and diastolic functions as well as functional capacity in comparison to those receiving only standard therapy or only herbal medications | Bhawani et al82 |
Heart failure | 12 patients with refractory chronic congestive heart failure | Aqueous extract from bark of T. arjuna was controlled 8 h at a dose of 500 mg | Adjuvant T. arjuna therapy in selected patients with refractory congestive heart failure, mostly related to idiopathic dilated cardiomyopathy, appeared safe and caused long lasting improvement in symptoms and signs of heart failure along with improvement in left ventricular ejection phase indices with definite improvement in quality of life | Bharani et al83 |
Anti-ischemic effects | 40 patients with acute myocardial infarction with ischemic mitral regurgitation | Double-blind study with 500 mg thrice daily for 3 months along with conventional therapy | Reduction in mitral regurgitation jet area Improvement in E/A ratio |
Dwivedi et al84 |
Anti-ischemic effects | 58 males with chronic stable angina (NYHA class II–III) with evidence of provocable ischemia | T. arjuna (500 mg 8 h), isosorbide mononitrate (40 mg/daily) or a matching placebo for one week each, separated by a wash-out period of three days in a randomized, doubled blind crossover design | Significant decrease in the frequency of angina and need for isosorbide dinitrate Significant improvement in the treadmill exercise. The total duration of exercise increased |
Bharani et al85 |
Hypertension | 36 hypertensive patients (stage III) with increased LV mass | Ayurvedic formulation of T. arjuna, known as ‘Arjuna Kwath’ (25 ml twice a day) | A significant decrease in both SBP and DBP (P < 0.001) in both the groups LV mass index was only significantly reduced in the atenolol-plus-‘Arjuna Kwatha’ group as compared to atenolol |
Rao et al86 |
Antioxidant, lowering effects of lipid and lipoprotein | 100 patients with stable CAD | In a placebo-controlled double-blind study, 500 mg of T. arjuna along twice a day in addition to receive the conventional treatment | A significant decrease in hyperlipidemia as well as in various inflammatory cytokines such as hsCRP, IL-18 (P,0.001), IL-6 and TNF-α (P < 0.05) was observed at 3 months in patients | Kapoor et al19 |
Antioxidant activity | 30 patients with coronary artery disease | 500 mg bark powder of T. arjuna combined with conventional drugs | 16% reduction in LDL cholesterol 15% decrease in cholesterol 11% decrease in triglycerides Marginal decrease in nitrite levels |
Khalil87 |
Antioxidant activity | 105 patients with stable coronary heart disease (CHD) | T. arjuna bark powder at a dose of 500 mg once daily for 30 days was compared with a known antioxidant, vitamin E (400 units once daily) | Significant reduction in lipids (total cholesterol, LDL-cholesterol) Lowering of lipid peroxide in T. arjuna group |
Gupta et al88 |
Effect on endothelial dysfunction | Asymptomatic 18 health chronic smokers and 18 non-smokers | Double-blind, placebo-controlled, crossover design. 500 mg aqueous extract of T. arjuna bark powder administrated thrice daily | Improvement in brachial artery flow mediated dilation | Bharani et al89 |