Arrhythmia induced by clozapine in patients with schizophrenia:a Meta-analysis
Background Clozapine belongs to atypical antipsychotic drugs that has shown significant efficacy in treating schizophrenia.However,clozapine can induce arrhythmias in patients.Currently,there is a lack of systematic research on the types and incidence of clozapine-induced arrhythmias.Objective To explore the types and incidence of arrhythmias in patients with schizophrenia induced by clozapine through Meta-analysis,so as to provide references for clinical treatment.Methods On October 31,2022,a search was conducted through PubMed,Embase,Cochrane Library and China National Knowledge Infrastructure(CNKI)to collect relevant literature on clozapine-induced arrhythmia in patients with schizophrenia.Joanna Briggs Institute(JBI)was used to evaluate the quality of the included literature.Meta-analysis was conducted using Review Manager 5.4.Results A total of 12 studies were included,involving 42 490 schizophrenia patients taking clozapine.The incidence of arrhythmias caused by clozapine was 23%(95%CI:0.16~0.29).Among them,the incidence of tachycardia was 25%(95%CI:0.15~0.35),atrial arrhythmia was 6%(95%CI:-0.02~0.14),ventricular arrhythmia was 7%(95%CI:-0.02~0.16),conduction block was 2%(95%CI:0~0.04),QTc prolongation was 4%(95%CI:-0.04~0.12)and T-wave changes was 23%(95%CI:0.16~0.30).Conclusion Schizophrenia patients taking clozapine may increase their risk of developing arrhythmia,with tachycardia being the most prevalent.