Clinical outcomes of elderly South-East Asian patients in primary percutaneous coronary intervention for ST-elevation myocardial infarction
2016
OBJECTIVE: To evaluate the clinical characteristics and in-hospital outcomes of elderly South-East Asian patients undergoing primary percutaneous coronary intervention (PPCI). METHODS: From January 2009 to December 2012, 1268 patients (86.4% male, mean age of 58.4 ± 12.2 years) presented to our hospital for ST-elevation myocardial infarction (STEMI) and underwent PPCI. They were divided into two groups: elderly group defined as age ≥ 70 years and non-elderly group defined as age < 70 years. Data were collected retrospectively on baseline clinical characteristics, door-to-balloon (D2B) time, angiographic findings, therapeutic modality and hospital course. RESULTS: The elderly group constituted 19% of the study population with mean age 76.6 ± 5.0 years. There was a higher proportion of female gender and ethnic Chinese patients in the elderly group when compared with the non-elderly group. The former was less likely to be smokers and have a significantly higher prevalence of hypertension. The mean D2B time was significantly longer in the elderly group. They also had a significantly higher incidence of triple vessel disease and obstructive left main disease. The use of radial artery access, glycoprotein 2b/3a inhibitors and drug-eluting stents during PPCI were also significantly lower. In-hospital mortality was significantly higher in the elderly group. The rate of cardiogenic shock and inhospital complications were also significantly higher. CONCLUSIONS: Our registry showed that in-hospital mortality rate in elderly South-East Asian patients undergoing PPCI for STEMI was high. Further studies into the optimal STEMI management strategy for these elderly patients are warranted.
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