[Meta-analysis as a synthesis of clinical and epidemiologic information. Its application to treatments in gynecology and obstetrics].

Multiple clinical studies require a structured synthesis of their results, especially where heterogeneous results are reported. Meta-analysis is a method that does just that. Such an epidemiological study of results across studies replaces the traditional narrative review of literature, and its study completes, but does not replace medical record linkage. Diuretics in pre-eclampsia, progestational agents in the control of major failures of pregnancy and fetal monitoring as a possible trigger for more frequent caesarean sections are given as examples of interest in gynaecology and obstetrics.