RESUMO
Objective This study was aimed to evaluate the remote real-time transmission 12-lead electrocardiogram system on door-to-balloon time in patients with ST-segment elevation myocardial infarction.Methods We retrospectively analyzed the consecutive patients with STEM I who had accepted primary percutaneous coronary intervention (PCI) in the chest pain center of our hospital from February 2012 to July 2012.The study group consisted of patients with pre-hospital ECG,while the control group included patients without pre-hospital ECG,Their door-to-balloon time and door-to-catheter room time,mortality w ere compared.Results Totally 60 consecutive patients who had received primary PC I for STEMI were evaluated.Among them,35 patients were hospitalized with pre-hospital ECG while the other 25 patients without ECG.The Pre-hospital ECG was associated with a significautly shorter median door-to-balloon time (38 min vs.94min;P ＜0.01),The proportion of patients received balloon dilation within the guidelinerecommended 90 min timeframes Was significantly higher in pre-hospital ECG group than in non pre-hospital ECG group (94.6％ vs.60％;P =0.001).No difference was observed in mortality between the two groups (5.7％vs.4％;P ＞ 0.05),Significant difference was seen in the median hospital time in study group (5 compared with control group (7day) (5 day vs.7 day;P ＜ 0.01).Conclusions The remote real-time transmission 12-lead electrocardiogram system is associated with a significantly shorter door-to-balloon time in STEMI patients.The remote real-time transmission 12-lead electrocardiogram system is recommended in patients suspected STEMI.
RESUMO
Objective To evaluate the pre-hospital diagnostic reliability of real-time tele-transmission of 12-lead electrocardiogram of patients with ST-segment elevated acute myocardial infarction (STEMI).Methods The 12-lead electrocardiogram was simultaneously recorded with real-time tele-transmission system and a conventional electrocardiograph in 40 STEMI cases.The width and amplitude of each wave,the deviated amplitude of ST-segment in the same leads were compared by t-test and rank-sum test.Results There were no statistical differences in the width and amplitude of P wave,QRS wave and t wave as well as the deviated altitude of ST-segment between the two separate electrocardiographs (P ＞0.05).There was a significant positive correlation between the two ECG devices in respect of ST-segment elevated altitude (r =0.912,P =0.000).The differential ability of ST-segment elevation between two separate ECG devices kept highly consistent (Kappa value:0.976).Conclusions Real-time tele-transmission of 12-lead electrocardiogram is reliable for the pre-hospital diagnosis of STEMI.