Noninducibility of VT after VT ablation is associated with improved arrhythmia-free survival and all-cause mortality
BACKGROUND Although ventricular tachycardia ( VT ) ablation is a widely used therapy for patients with VT , the ideal end points for this procedure are not well defined .
We performed a meta- analysis of the published literature to assess the predictive value of noninducibility of postinfa rct ion VT for long-term outcomes after VT ablation .
Completeness of reporting of trials published in languages other than English: implications for conduct and reporting of systematic reviews
BACKGROUND Lately , the number of systematic review s published has increased substantially . Many systematic review s exclude trials published in language s other than English . However , there is little empirical evidence to support this action . We looked for differences in the completeness of reporting between trials published in other language s and those published in English , to see whether the exclusion of trials published in other language s is justified . METHODS We compared completeness of reporting , design characteristics , and analytical approaches of 133 r and omised controlled trials ( RCTs ) published in English between 1989 and 1994 and 96 published in French , German , Italian , or Spanish during the same time . RCTs were identified by h and search ing of journals ( seven in English and six in the other language s ) . FINDINGS We found no significant differences between trials published in English and other- language trials for any single item in the completeness of reporting scale ( r and omisation , double-blinding , withdrawals ) , or for the overall score ( percentage of maximum possible score 51.0 % for trials in English , 46.2 % for trials in other language s ; 95 % CI for difference -1.1 to 10.5 ) . Other- language trials were more likely than English- language trials to have adult participants , to use two or more interventions , and to compare two or more active treatments without an untreated control group . Trials in other language s were less likely to report a clearly prespecified primary outcome or any rationale for sample size estimation . INTERPRETATION These results provide evidence for inclusion of all trial reports , irrespective of the language in which they are published , in systematic review s. Their inclusion is likely to increase precision and may reduce systematic errors . We hope that our findings will prove useful to those developing guidelines and policies for the conduct of reporting of systematic review
Noninducibility of VT after VT ablation is associated with improved arrhythmia-free survival and all-cause mortality
BACKGROUND Although ventricular tachycardia ( VT ) ablation is a widely used therapy for patients with VT , the ideal end points for this procedure are not well defined .
We performed a meta- analysis of the published literature to assess the predictive value of noninducibility of postinfa rct ion VT for long-term outcomes after VT ablation .