Section 59
Chapter 58,386

Neisseria elongata endocarditis of a native aortic valve

Samannodi, M.; Vakkalanka, S.; Zhao, A.; Hocko, M.

BMJ Case Reports


ISSN/ISBN: 1757-790X
PMID: 26917793
Accession: 058385392

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Neisseria elongata is a part of the common bacterial flora of the oropharynx but has caused sepsis, osteomyelitis and infective endocarditis on rare occasions. We report the case of a 56-year-old Caucasian woman who was admitted to hospital with a 5-week history of fever, malaise and fatigue. Two blood cultures grew Gram-negative rods which were confirmed to be N. elongata subspecies nitroreducens via bacterial DNA sequence analysis. An echocardiogram showed a large mobile vegetation on the right and non-coronary cusps of the aortic valve. The patient underwent aortic valve replacement and antibiotic therapy for 6 weeks. We suggest that clinicians should consider extended antibiotic treatment and early surgical evaluation based on the nature and aggressiveness of N. elongata.

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