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Endocarditis due to Neisseria bacilliformis in a patient with a bicuspid aortic valve.

ABSTRACT: We report a case of endocarditis due to the rod-shaped Neisseria species Neisseria bacilliformis. The phenotypic characterization of this recently characterized bacteria is difficult, and the identification requires the sequencing of the 16S rRNA gene. The resolution of the disease was complete after appropriate antibiotic therapy, and surgery was not required.

SUBMITTER: Masliah-Planchon J

PROVIDER: S-EPMC2691068 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature

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Endocarditis due to Neisseria bacilliformis in a patient with a bicuspid aortic valve.

Masliah-Planchon Julien J Breton Guillaume G Jarlier Vincent V Simon Anne A Benveniste Olivier O Herson Serge S Drieux Laurence L

Journal of clinical microbiology 20090422 6

We report a case of endocarditis due to the rod-shaped Neisseria species Neisseria bacilliformis. The phenotypic characterization of this recently characterized bacteria is difficult, and the identification requires the sequencing of the 16S rRNA gene. The resolution of the disease was complete after appropriate antibiotic therapy, and surgery was not required. ...[more]

PMID: 19386832

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Aortic valve endocarditis in patients with bicuspid and tricuspid aortic valves.

Project description:ObjectiveTo determine the long-term survival and rate of reoperation after surgical treatment of infective endocarditis (IE) in patients with a bicuspid aortic valve (BAV) and patients with a tricuspid aortic valve (TAV).MethodsBetween 1997 and 2017, 210 patients underwent surgical treatment for native aortic valve endocarditis, including 51 patients with BAV (24%) and 159 patients with TAV (76%). Data were obtained from the Society of Thoracic Surgeons data warehouse and hospital medical record review, supplemented with surveys and national death index data for more complete follow-up.ResultsCompared with the TAV IE group, the BAV IE group was significantly younger (42 years vs 54 years) and had lower incidence rates of hypertension, coronary artery disease, and congestive heart failure (CHF). There were no significant between-group differences in postoperative stroke, sepsis, pacemaker requirement, or in-hospital mortality (2.0% vs 4.4%). Liver disease was a risk factor for operative mortality (odds ratio [OR], 13; 95% CI, 3.3-30; P = .0002). The 10-year survival rate was 64% for the BAV group versus 46% for the TAV group (P = .0191). Significant risk factors for long-term mortality were intravenous drug use (hazard ratio [HR], 4.5; P < .0001), preoperative renal failure requiring dialysis (HR, 4.13; P < .0001), CHF (HR, 1.7; P = .04), and liver disease (HR, 2.6; P = .02). The HR for BAV was 0.67 (95% confidence interval [CI], 0.3-1.4). The 10-year postoperative cumulative incidence of reoperation was significantly higher in the BAV patients compared with the TAV patients (5.7% vs 4.5%; P = .045) with an HR of 2.4 (95% CI, 0.8-7.1; P = .11) for BAV.ConclusionsBAV patients develop IE requiring surgery at a younger age than TAV patients, but have significantly better long-term survival. Early detection of BAV is important to prevent IE and provide aggressive surgical treatment should IE occur.

| S-EPMC9390515 | biostudies-literature

Uncommon acquired Gerbode defect following extensive bicuspid aortic valve endocarditis.

Project description:Gerbode defect is a rare type of left ventricle to right atrium shunt. It is usually congenital in origin, but acquired cases are also described, mainly following infective endocarditis, valve replacement, trauma or acute myocardial infarction. We report a case of a 50-year-old man who suffered an extensive and complex infective endocarditis involving a bicuspid aortic valve, the mitral-aortic intervalvular fibrosa and the anterior leaflet of the mitral valve. After dual valve replacement and annular reconstruction, a shunt between the left ventricle and the right atrium--Gerbode defect, and a severe leak of the mitral prosthesis were detected. Reintervention was performed with successful shunt closure with an autologous pericardial patch and paravalvular leak correction. No major complications occurred denying the immediate post-surgery period and the follow-up at the first year was uneventful.

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Prosthetic valve endocarditis due to Neisseria skkuensis, a novel Neisseria species.

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A Ruptured Mitral Valve Aneurysm as Complication of a Bicuspid Aortic Valve Endocarditis.

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Infectious Endocarditis Caused by <i>Pseudomona aeruginosa</i> on Bicuspid Aortic Valve.

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| S-EPMC9239513 | biostudies-literature

<i>Abiotrophia defectiva</i> endocarditis of bicuspid aortic valve: a case report.

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| S-EPMC9549599 | biostudies-literature

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| S-EPMC1933016 | biostudies-literature

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Project description: Not available

| S-EPMC10980779 | biostudies-literature

Transcatheter aortic valve implantation for patient with non-calcified bicuspid aortic valve: a case report.

Project description:BackgroundNon-calcified aortic stenosis (AS) is rare and is associated with a high risk of transcatheter valve embolization and migration (TVEM) because aortic valve complex calcification is important for stable anchoring of the prosthesis. Therefore, transcatheter aortic valve implantation (TAVI) for non-calcified AS is not preferred. However, a universally accepted strategy for TAVI in such patients is not yet established.Case summaryA 69-year-old woman with symptomatic severe AS and a high surgical risk was admitted to our institution for TAVI. Pre-procedural computed tomography (CT) revealed a non-calcified bicuspid aortic valve. Implantation of a 23 mm self-expandable valve (SEV) was planned according to the manufacturer's recommended optimal size based on CT measurements. Intraoperatively, the 23 mm SEV did not snugly fit at the aortic apparatus level. Thus, we deployed a 26 mm SEV with stable anchoring because of the stronger radial force. She was discharged without any complication. Echocardiography at 3 months follow-up showed a well-functioning transcatheter heart valve (THV) without migration or paravalvular leakage.DiscussionIn our patient with non-calcified bicuspid AS, an SEV that was one size larger than the optimal as measured on CT was successfully implanted without THV embolization. An upsized SEV may be considered when performing TAVI in patients with severe non-calcified AS.

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Project description: Not available

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