[Percutaneous coronary intervention of patients with complex small coronary artery lesion unsuitable for coronary artery bypass graft].
OBJECTIVE
To investigate the safety and efficacy of percutaneous coronary intervention (PCI) in patients with low left ventricular ejection fraction (LVEF) and complex small coronary artery lesions.


METHODS
Complete or partial post-PCI revascularization of coronary artery was employed in 16 patients with a low LVEF and complex small coronary artery lesions who were unsuitable for CABG (coronary artery bypass grafting). All cases were observed with regards to immediate success rate of operation, complication, hospitalization duration, improvement of cardiac function and LVEF and major adverse cardiac events (including cardiac death, myocardial infarction and target lesion revascularization) at 12 months post-operation.


RESULTS
All cases were successfully treated without death and severe complications while the hospitalization duration was (11 +/- 5) days. The follow-up survey at 12 months post-operation showed that no major adverse cardiac event occurred, the post-operative improvement of cardiac function was from III - IV grade to I - II grade, the improvement of LVEF was from 25% - 45% [(29 +/- 8)%] to 32% - 48% [(37 +/- 7)%], left ventricular end diastolic diameter (LVDd) was shortened from 52 - 79 (66 +/- 11) mm to 49 - 68 (58 +/- 8) mm. The reexamination of 14 cases by coronary angiography at 12 months post-operation showed that there was no intra-stent thrombosis while 20% - 40% intra-stent restenosis occurred in 2 cases.


CONCLUSIONS
For patients with a low LVEF and complex small coronary artery lesions, PCI is a safe and effective method to lower the mortality rate of CHD patients with heart failure and improve the long-term patient prognosis.
Hong
Lang
L
Second Department of Cardiology, Jiangxi Provincial People's Hospital, Nanchang 330006, China.
Wang
Hong
H
Yin
Qiu-lin
QL
Li
Lin-feng
LF
Lai
Heng-li
HL
Chen
Zhang-qiang
ZQ
Lu
Lin-xiang
LX
Li
Bin
B
Huang
Qin
Q
D000368:Aged; D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D000075202:Contraindications; D001026:Coronary Artery Bypass; D003324:Coronary Artery Disease / Q000503:physiopathology / Q000628:therapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013318:Stroke Volume