Infective Endocarditis Outcomes in Jeddah City, Saudi Arabia

Abstract

OBJECTIVES This study aimed to analyze all the reported cases of definitive infective endocarditis, based on the modified Duke criteria in a tertiary hospital over the past five years, focusing on the causative organism/s, predisposing factors, and outcomes. METHODS This is a cross-sectional retrospective study. Patients with a confirmed diagnosis of infective endocarditis using modified Duke criteria were included. The demographic data, predisposing factors, the causative microorganisms, laboratory and echocardiography results, and treatment were collected. RESULTS In total, 37 patients were identified, 22 were male, and the median age was 59 years. Native valve endocarditis was found in 29 (78.3%) patients. The most frequently involved valves were the mitral valve in eight (42.1%) and aortic valve in six (31.6%) patients. Fever occurred in 22 patients (59.5%). The most frequent organisms were Staphylococcus aureus in 14 (37.4%) patients, coagulase-negative staphylococci in seven (18.9%) patients, and streptococci in seven (18.9%) patients. The majority (n=27) of the patients (72.97%) were treated medically, with 10 (27.02%) requiring in-hospital surgical intervention. The in-hospital mortality rate was 24.3%. Late presentation, reluctance to undergo surgery, and the past history of rheumatic fever were the contributing factors. CONCLUSION Native valve endocarditis is the major type of infective endocarditis. The most frequent organisms were Staphylococcus aureus, Streptococcus, and coagulase-negative staphylococci. In our study, infective endocarditis was more common among males, surgical intervention was low, and a high in-hospital mortality rate was noted in our series.