One-year clinical outcomes in invasive treatment strategies for acute ST-elevation myocardial infarction complicated by cardiogenic shock in elderly patients.
OBJECTIVE
To investigate the clinical outcomes of an invasive strategy for elderly (aged ≥ 75 years) patients with acute ST-segment elevation myocardial infarction (STEMI) complicated by cardiogenic shock (CS).


METHODS
Data on 366 of 409 elderly CS patients from a total of 6,132 acute STEMI cases enrolled in the Korea Acute Myocardial Infarction Registry between January 2008 and June 2011, were collected and analyzed. In-hospital deaths and the 1-month and 1-year survival rates free from major adverse cardiac events (MACE; defined as all cause death, myocardial infarction, and target vessel revascularization) were reported for the patients who had undergone invasive (n = 310) and conservative (n = 56) treatment strategies.


RESULTS
The baseline clinical characteristics were not significantly different between the two groups. There were fewer in-hospital deaths in the invasive treatment strategy group (23.5% vs. 46.4%, P < 0.001). In addition, the 1-year MACE-free survival rate after invasive treatment was significantly lower compared with the conservative treatment (51% vs. 66%, P = 0.001).


CONCLUSIONS
In elderly patients with acute STEMI complicated by CS, the outcomes of invasive strategy are similar to those in younger patients at the 1-year follow-up.
['Yoo|Yeon Pyo|YP|', 'Kang|Ki-Woon|KW|', 'Yoon|Hyeon Soo|HS|', 'Myung|Jin Cheol|JC|', 'Choi|Yu Jeong|YJ|', 'Kim|Won Ho|WH|', 'Park|Sang Hyun|SH|', 'Jung|Kyung Tae|KT|', 'Jeong|Myung Ho|MH|', '|||']
Cardiogenic shock Elderly patients Acute myocardial infarction