COMPARISION OF IN-HOSPITAL OUTCOME OF ACUTE INFERIOR MYOCARDIAL INFARCTION COMPLICATED BY RIGHT VENTRICULAR INFARCTION WITH ISOLATED ACUTE INFERIOR MYOCARDIAL INFARCTION

Abstract

Objective: To compare the in-hospital outcomes of acute inferior myocardial
infarction complicated by right ventricular myocardial infarction (RVMI) with
isolated acute inferior myocardial infarction (IWMI).
Methodology:This observational comparative study was carried out at
Department of Cardiology, Lady Reading Hospital, Peshawar from May to
October 2009. Patients were divided into two groups. Group A included patients
with acute IWMI complicated by acute RVMI while Group B were patients with
isolated acute IWMI. Both groups were monitored for in hospital complications
during hospital stay.
Results: A total 337 patients were enrolled in the study in which group A had
99(29) and group had 238(71). Both groups were similar for baseline
characteristics. Mean age in group A was 58.90 + 10.6 years and 58.74+9.0 in
group B; P=0.94. Male patients were 73(74) and 182(77) in group A and B
respectively. In-hospital morbidity was present in 77 % patients in group A and 25 % in group B (P<0.0005). Complications between group A and group B were;
Left ventricular Failure 16% vs 11% (P<0.19), Cardiogenic shock 26% vs 6 %(
P<0.0005), atrioventricular block 25% vs 12% (P<0.003) respectively.
Similarly, Recurrent myocardial infarction was 7% vs 3% (P<0.1) and Ventricular
septal rupture 3 % vs 1 % (P<0.26) in group A and B respectively. Mortality in
Group A patients was 22 % vs. 7% in group B (p<.0.0005).
Conclusion: Patients with acute inferior myocardial infarction complicated by
RVMI had significantly higher in-hospital complications as compared to patients
with isolated acute inferior myocardial infarctions.