unusual case report of infective endocarditis due to streptococcus agalactiae in lebanon

Background: right-sided infective endocarditis (ie) is uncommon. furthermore, streptococcus agalactiae (s agalactiae) rarely causes ie, with only 2% to 9% of bacteremia cases manifesting as endocarditis.case presentation: a 30-year-old lebanese woman presented to the emergency department with high-grade fever and chills. blood tests were obtained, urinalysis showed leukocytes, and treatment for urinary tract infection was initiated. the patient was hospitalized 3 days later and transferred to the icu. echocardiography revealed severe right-sided cardiomegaly, flail tricuspid leaflets with ruptured chordae, and a large coaptation defect. she was diagnosed with right-sided ie due to s agalactiae and underwent tricuspid valve replacement. unfortunately, the patient died from acute decompensated heart failure.conclusion: this case represents an unusual instance of right-sided ie due to s agalactiae in lebanon, for which definitive treatment guidance remains limited.