Door-to-balloon time and factors associated with delayed door-to-balloon time in ST-segment elevation myocardial infarction at Thailand's largest tertiary referral centre.

Objective: To analyse door-to-balloon (DTB) time and to identify factors significantly associated with delayed DTB in patients with ST-segment elevation myocardial infarction (STEMI) at Thailand's largest tertiary referral centre.

Background: DTB time is considered an important measure of performance quality.

Methods: This observational study analysed DTB time in patients with STEMI who presented to our institute's emergency department and underwent primary percutaneous coronary intervention (PCI) during June 2008 to May 2011.