FRONTIERS IN MEDICAL CASE REPORTS - Volume 5; Issue 1, (Jan-Feb, 2024)

Pages: 01-07

Kytococcus Schroeteri Prosthetic Valve Endocarditis Complicated by Aortic Pseudoaneurysm: A Rare Complication from A Rare Agent

André Grazina, Bárbara Lacerda Teixeira, Francisco Barbas Albuquerque, Ricardo Carvalheiro, Miguel Antunes, Ana Teresa Timóteo, Ana Galrinho, Rui Rodrigues, Rui Cruz Ferreira

Category: Medical Case Reports

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Abstract:

Kytococcus schroeteri is a rarely described slow-growing gram-positive coccus, with recent association with Infective Endocarditis cases. A 29-year-old male with prior history of rheumatic valvular heart disease and HIV infection, previously submitted to two cardiac surgeries, the last one 12 years ago with mechanical mitral and aortic valve implantation plus tricuspid annuloplasty was evacuated from Cape Verde with congestive heart failure and no features of infection. The diagnostic work-up revealed an aortic paravalvular leak and a large pseudoaneurysm as well as a severe tricuspid regurgitation. The patient underwent surgery with Bentall procedure and a mechanical tricuspid valve implantation. The microbiologic exam of the removed aortic valve using 16sRNA sequencing showed a Kytococcus schroeteri, revealing its association with a severe complicated case of prosthetic valve endocarditis.

Keywords: Kytococcus Schroeteri, Prosthetic Valve Endocarditis, Aortic Pseudoaneurysm

References:

Afridi I, Apostolidou MA, Saad RM, Zoghbi WA. Pseudoaneurysms of the mitral-aortic intervalvular fibrosa: dynamic characterization using transesophageal echocardiographic and Doppler techniques. J Am Coll Cardiol 1995; 25: 137-145.

Al Tamtami WN, Al Yaquobi F, Al Jardani A, Al Riyami M, Cormican M. First report of Kytococcus schroeteri prosthetic valve endocarditis in Oman. J Microbiol Exp 2019; 7: 247-248.

Amaraneni A, Malik D, Jasra S, Chandana SR, Garg D. Kytococcus schroeteri Bacteremia in a Patient with Hairy Cell Leukemia: A Case Report and Review of the Literature. Case Rep Infect Dis 2015; 2015: 217307.

Becker K, Wüllenweber J, Odenthal HJ, Moeller M, Shumann P, Peters G, von Eiff C. Prosthetic valve endocarditis due to Kytococcus schroeteri. Emerg Infect Dis 2003; 9: 1493-1495.

Chan JF, Wong SS, Leung SS, Fan RY, Ngan AH, To KK, Lau SK, Yuen KY, Woo PC. First report of chronic implant-related septic arthritis and osteomyelitis due to Kytococcus schroeteri and a review of human K. schroeteri infections. Infection 2012; 40: 567-573.

Fernández Manandu H, Alcorta Lorenzo N, Camino Ortiz de Barrón X, Berasategui Calderón JI, Rodríguez Arrondo F. Endocarditis infecciosa por Kytococcus schroeteri, a propósito de dos casos clínicos [Endocarditis due to Kytococcus schroeteri: two cases report]. Rev Esp Quimioter 2021; 34: 70-71.

Ha J, Kim KH, Kim JO, Hong JS, Jeong SH, Lee K. Bacteraemia caused by Kytococcus schroeteri in a pneumonia patient. J Med Microb Diagn 2015; 4: 2161-0703.

Hodiamont CJ, Huisman C, Spanjaard L, van Ketel RJ. Kytococcus schroeteri pneumonia in two patients with a hematological malignancy. Infection 2010; 38: 138-140.

Le Brun C, Bouet J, Gautier P, Avril JL, Gaillot O. Kytococcus schroeteri endocarditis. Emerg Infect Dis 2005; 11: 179-180.

Liu JC, Jenkins DR, Malnick H, Kovac J, Szostek J. Kytococcus schroeteri endocarditis successfully managed with daptomycin: a case report and review of the literature. J Med Microbiol 2012; 61: 750-753.

Mnif B, Boujelbène I, Mahjoubi F, Gdoura R, Trabelsi I, Moalla S, Frikha I, Kammoun S, Hammami A. Endocarditis due to Kytococcus schroeteri: case report and review of the literature. J Clin Microbiol 2006; 44: 1187-1189.

Wang CW, Yu CL, Pan HC, Chan SW, Wang KY, Lin WW. A Rare and Life-Threatening Complication of Infective Endocarditis: Pseudoaneurysm of the Mitral - Aortic Intervalvular Fibrosa. Acta Cardiol Sin 2015; 31: 358-360.

DOI URL: https://dx.doi.org/10.47746/FMCR.2024.5102