Determinants of angiographic thrombus burden and impact of thrombus aspiration on outcome in young patients with ST-segment elevation myocardial infarction

Catheter Cardiovasc Interv. 2019 Apr 1;93(5):E269-E276. doi: 10.1002/ccd.27944. Epub 2018 Nov 12.

Abstract

Objectives: We aimed to investigate the determinants of thrombus burden (TB) and the impact of thrombus aspiration (TA) on outcome in young adults with ST segment elevation myocardial infarction (STEMI).

Background: The determinants of TB in young STEMI patients are not fully understood now.

Methods: The 182 young (age ≤ 45 years) STEMI patients, who underwent coronary angiography and percutaneous coronary intervention (PCI) in our hospital from January 2013 to September 2016, were included. Angiographic TB and impact of TA on major adverse cardiac events (MACEs) were evaluated. Median clinical follow-up period was 875 (641-1,052) days.

Results: All patients were male, mean age was 40 ± 5 years. High thrombus burden (HTB) was evidenced in 100 (54.9%) patients. TA was performed in 62 out 100 (62%) patients with high TB (HTB) during PCI. The prevalence of hypertension was significantly higher in the HTB group than in the low thrombus burden (LTB) group (75 vs. 17%, P < 0.001). The proportion of smoking, alcohol consumption, and family history of premature coronary artery disease were similar between HTB and LTB groups. During follow-up, 2 patients died and 31 patients underwent repeat PCI. MACE rate was significantly higher in the HTB group than in the LTB group (24.0 vs. 9.8%, P = 0.012) and significantly lower in HTB patients with TA than HTB patients without TA (14.5 vs. 39.5%, P = 0.018).

Conclusions: Hypertension is an independent determinant of HTB and TA could be considered as an effective therapeutic option in young male STEMI patients with HTB.

Keywords: Hypertension; STEMI; primary PCI.

MeSH terms

  • Adult
  • Age of Onset
  • Angioplasty, Balloon, Coronary* / adverse effects
  • Angioplasty, Balloon, Coronary* / mortality
  • China / epidemiology
  • Coronary Angiography*
  • Coronary Thrombosis / diagnostic imaging
  • Coronary Thrombosis / mortality
  • Coronary Thrombosis / therapy*
  • Humans
  • Hypertension / epidemiology
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Retrospective Studies
  • Risk Assessment
  • Risk Factors
  • ST Elevation Myocardial Infarction / diagnostic imaging
  • ST Elevation Myocardial Infarction / mortality
  • ST Elevation Myocardial Infarction / therapy*
  • Severity of Illness Index
  • Sex Factors
  • Suction
  • Thrombectomy* / adverse effects
  • Thrombectomy* / mortality
  • Time Factors
  • Treatment Outcome