Influences of mode of ambulance-catheter room on vascular-opening time and left ventricular ejection fraction in patients with acute myocardial infarction
QIU Yi-gang
LI Tian-chang
CHEN Yu
LI Xian-feng
CAO Yi
TIAN Hai-tao
WANG Zhi-guo
LI Dong-tao
Abstract：Objective To discuss the influences of mode of ambulance-catheter room on door-to-balloon time (DBT) and left ventricular ejection fraction (LVEF) in patients with acute ST-segment elevation myocardial infarction (STEMI). Methods STEMI patients (n=416) with emergency percutaneous coronary intervention (PCI) and 3-month follow-up were chosen from Jan. 2011 to Dec. 2013, and divided into ambulance-catheter room group (group 1) and ambulance-emergency department-catheter room group (group 2). The target vascular lesion and Killip grading were recorded, and vascular-opening time and changes of LVEF at hospitalization time and 3 m after PCI were compared in 2 groups. Results The baseline, target vascular lesion and Killip grading had no statistical difference (P>0.05), and duration of symptom attack-hospitalization had no statistical difference (P>0.05) between 2 groups. The mean DBT [(44.3±11.8) min vs. (82.9±12.6) min] and symptom attack-vascular-opening time [(511.8 ±219.9) min vs. (558.6±245.6) min] were higher in group 1 than those in group 2 (P<0.05). LVEF was similar in 2 groups at hospitalization time, but after PCI for 3 m, LVEF and added value of LVEF were higher in group 1 than those in group 2 (P<0.05). Conclusion The mode of ambulance-catheter room can shorten DBT and symptom attack-vascular-opening time, and improve left heart function 3 m after PCI in STEMI patients with emergency PCI.
Keywords：Acute myocardial infarctionPercutaneous coronary interventionDoor-to-balloon timeLeft ventricular ejection fraction
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 76-79 )