[The safety and outcome of patients with acute myocardial infarction transferred for primary angioplasty].
OBJECTIVE
To evaluate the safety and outcome of patients with acute myocardial infarction (AMI) transferred for primary percutaneous coronary intervention (PCI).


METHODS
Data from patients with ST elevation AMI urgently transferred from first admitted hospitals to our cath-lab to receive primary PCI were analyzed. According to time intervals from symptom onset to transfer, the patients were divided into early transfer (< 6 h, n = 26), delayed transfer (6 - 24 h, n = 39) and late transfer (24 h to 1 week, n = 18) group. The major cardiac events during transfer periods and one month after PCI were obtained and echocardiogram and left ventricular systolic functions were compared among groups.


RESULTS
There was no serious cardiac event during transfer period and all 83 patients received primary PCI with a mean transfer-to-balloon time about 180 minutes. Success rate of PCI was 92.3% in early transfer group, 89.7% in delayed transfer group, and 94.4% in late transfer group (P > 0.05). At one month follow-up after PCI, 0, 10.3% and 16.7% of patients developed heart failure in early, delayed transfer and late transfer group respectively (P > 0.05 vs. early), the LVEF of early transfer group (53.2% +/- 9.7%) was also significantly higher than delayed transfer group (48.6% +/- 8.2%, P < 0.05) and late transfer group (43.1% +/- 10.3%, P < 0.01).


CONCLUSIONS
Transfer patients with AMI for primary PCI is safe in the observed time intervals during acute phase. Early transferred patients are associated with better outcome at 1 month post PCI compared to delayed and late transferred AMI patients.
Ma
Li-kun
LK
Department of Cardiology, Anhui Provincial Hospital, Hefei 230001, China. malk2002cn@yahoo.com.cn
Yu
Hua
H
Feng
Ke-fu
KF
Shi
You-wei
YW
Zhang
Xiao-hong
XH
Dai
Xiao-hua
XH
Gao
Chao
C
Tang
Bao-long
BL
Cheng
Zhi-xiang
ZX
Chen
Hong-wu
HW
Xia
Ming-wei
MW
Han
Xiao-ping
XP
Ye
Qi
Q
Yan
Ji
J
D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects* / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000503:physiopathology / Q000628:therapy*; D010360:Patient Transfer; D012449:Safety; D016896:Treatment Outcome