Author + information
- Deuk-Young Nah1,
- Byong-kyu Kim1,
- Jun-Ho Bae1,
- Jin Wook Chung1,
- Moo-Yong Rhee2,
- Kwan Lee3,
- Myung-Ho Jeong4 and
- Young Jo Kim5
There are limited data regarding the clinical implication of complete atrioventricular block in patients with ST-elevation myocardial infarction (STEMI) in the primary percutaneous coronary intervention (PPCI) era. We assessed the prognostic significance of complete atrioventricular block (CAVB) in STEMI in Korea.
A total of 5,067 STEMI in KorMI (Korean Working Group on Myocardial Infarction) registry between January 2008 and August 2011. We divided patients into two groups; normal sinus rhythm (NSR) and CAVB according to initial electrocardiographic findings. Patients with atrial fibrillation, ventricular tachycardia or ventricular fibrillation were excluded.
CAVB was present in 178 patients (3.5%) and 79 patients (44.4%) patients required temporary pacing prior to or during PPCI. CAVB group was older, predominantly female, had a higher prevalence of diabetes mellitus, had more right coronary artery infarction, higher incidence of cardiogenic shock and ventricular tachycardia than NSR group.
|In-hospital||1 month||12 months|
|NSR||5.6 %||6.1 %||8.0 %|
|CAVB||15.2 %||16.3 %||16.9 %|
p<0.001, Chi square
|Exp (B)||95 % CI||p|
|CAVB_ 1 month||2.357||1.323-4.199||0.004|
Adjusted for age, sex, risk factors, creatinine
STEMI patients who develop CAVB in the PPCI era have significantly poorer prognosis at in-hospital and 12 months than those without CAVB and CAVB is the predictors of cardiac mortality in STEMI patients.