“…Cardiac perforation after pacemaker insertion can occur within twenty-four hours, within one month and after one month, which are termed as acute, subacute and chronic cardiac perforations, respectively [1]. Compared to chronic cardiac perforation, acute cardiac perforation is more common [3], carries worse prognosis and higher mortality [2]. Risk factors for cardiac perforation and pericardial effusion include older age, female sex, low body mass index, corticosteroid use and the use of anticoagulants [2,4].…”