Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

26 questions · 26 findings · 14 reviews · Heart

No studies found 10 · 38.5%GRADE not reported 1 · 3.8%Very low 5 · 19.2%Low 4 · 15.4%Moderate 3 · 11.5%High 3 · 11.5%

Homocysteine‐lowering interventions (Folic Acid, Vitamin B6 and Vitamin B12) vs placebo or usual care

Adverse events · people with or without existing cardiovascular disease, men and women

Homocysteine‐lowering interventions (Vitamin B6 (pyridoxine;… showed no clear difference in adverse events compared with placebo or standard care (high certainty).

1 finding from 1 review

Intervention not reported

Adverse events · adults (age 18 years or over) with myocardial infarction, stable angina, following coronary artery bypass graft surgery or percutaneous…

The review found no eligible studies for this question.

1 finding from 1 review

Xiongshao capsule (XSC) plus conventional western medicine (CWM) vs Western medicine

Serious adverse events · patients with restenosis after percutaneous coronary intervention in coronary heart disease

Xiongshao capsule (XSC) plus conventional western medicine (CWM) leads to lower serious adverse events compared with conventional western medicine (CWM) (high certainty).

1 finding from 1 review

Xiongshao capsule (XSC) plus conventional western medicine (CWM) vs conventional western medicine (CWM) plus placebo

Serious adverse events · patients with restenosis after percutaneous coronary intervention in coronary heart disease

Xiongshao capsule (XSC) plus conventional western medicine (CWM) leads to lower serious adverse events compared with conventional western medicine (CWM) plus placebo (high certainty).

1 finding from 1 review