Clinical features of Ⅲ degree artrioventricular block following acute myocarditis in adult patients

NING Shang-qiu; LIU Wen-xian; Ren Yan-long

doi:10.3969/j.issn.1672-5301.2017.10.009

Abstract：Objective Acute myocarditis complicated with Ⅲ degree atrioventricular block is rare in adult.The purpose of this study was to report the outcome of acute myocarditis complicated with Ⅲ degree atrioventricular block in our hospital,in order to provide reference for clinical diagnosis and treatment.Methods A retrospective analysis of Beijing Anzhen Hospital during January 2002 to December 2015 for the diagnosis of acute myocarditis were 108 cases,divided into two groups,one group of Ⅲ degree atrioventricular block(Ⅲ degree atrioventricular block group) total 21 cases,another group of non Ⅲ degree atrioventricular block (non Ⅲ degree atrioventricular block group) total 87 cases.The clinical features,laboratory examination,treatment and prognosis were compared between the two groups.Results There was a significant difference between the Ⅲ degree atrioventricular block group and the non Ⅲ degree atrioventricular block group in the average onset age [(36.0± 11.3)years vs (26.1-±9.0)years,P=0.000].Compared with the non Ⅲ degree atrioventricular block group,Stokes-Adams seizures[11 (52.4％) vs 6(6.9％),P=-0.000] occurred in Ⅲ degree atrioventricular block group was significantly increased.There was no significant difference in mortality between the two groups,of which there were no deaths in the Ⅲ degree atrioventricular block group.Conclusion Ⅲ degree atrioventricular block following acute myocarditis in adult patients often characterized by acute onset,elder age and high risk.And they often accompanied by syncope and Adams-Strokes syndrome,had to implant temporary pacemaker.Although the disease can be life-threatening,the prognosis is excellent.