Systematic review, a kind of higher-level evidence in evidence-based medicine, has a fully developed method system. However, it has some defects in the updating strategy. The living systematic review can effectively improve the timeliness of system reviews by periodically obtaining clinical evidences and updating the results of systematic reviews in a timely manner. This study briefly introduces the developing, characteristics, conditions, implementation and applications of living systematic reviews.
Obtaining the best evidence is an important part of practicing evidence-based medicine. Evidence grading is an indispensable tool and process in helping decision makers obtain the best evidence. However, the current research evidence is numerous, the quality of evidence is uneven, the evidence classification system is diverse and the standards are different. By reviewing the development history and process of evidence grading and recommendation system, this paper analyzed representative grading recommendation systems with representative and international influence, and expounded the status quo, characteristics and development trend of evidence grading development, so as to provide a reference for the grading recommendation system exploration in contemporary medical field.
