Endocarditis infecciosa nosocomial sobre válvula nativa mitral por Staphylococcus lugdunensis / Nosocomial mitral valve endocarditis caused by S. lugdunensis

Se presenta el caso clínico de un paciente de 53 años que tras una intervención neuroquirúrgica (laminectomía) presentó cuadro séptico. Se identificó la presencia de S. lugdunensis en la herida operatoria. El ecocardiograma transesofágico demostró rotura valvular mitral, vegetaciones e insuficiencia mitral masiva. El paciente se recuperó satisfactoriamente tras reemplazo valvular por prótesis mecánica.

A 53 year old man developed sepsis following laminectomy for spinal disease. S lugdunensis was identified from the surgical wound. Trans esophageal echocardiography demonstrated mitral valve rupture, vegetations and severe mitral regurgitation. The patient successfully recovered following mitral valve replacement with a mechanical prosthesis.

Multiple myeloma complicated with pseudomonas endocartiditis / Mieloma múltiplo complicado com endocardite infecciosa por pseudomonas

Patients diagnosed with multiple myeloma are more susceptible to infections which are the major causes of morbidity and mortality associated to this disease. The main infectious agents involved are Gram-positive bacteria. However, after chemotherapy an increase in the incidence of Gram-negative strains is observed. These bacteria are also responsible for most cases of urinary tract infections. Here is reported a rare case in a 73-year-old man with multiple myeloma who developed endocarditis due to pseudomonas.

Pacientes diagnosticados com mieloma múltiplo são mais suscetíveis a infecções, que é a principal causa de morbidade e mortalidade associadas a essa doença. Os principais agentes infecciosos envolvidos são as bactérias Gram-positivas, mas, após a quimioterapia, pode haver aumento na incidência de Gram-negativos, que são responsáveis, na maioria dos casos, por infecções do trato urinário. Assim, descrevese um raro caso de um paciente de 73 anos de idade, com mieloma múltiplo diagnosticado com endocardite por pseudomonas.

Salmonella species group B causing endocarditis of the prosthetic mitral valve

The Salmonella species is an extremely rare cause of infective endocarditis. This case report is for Salmonella spp. group B proven by positive multiple blood cultures, and positive intraoperative culture from the vegetation of the mitral valve prosthesis

Cirugía de la endocarditis infecciosa en un centro regional en Chile: Análisis de casos y resultados en el largo plazo / Surgery for bacterial endocarditis: Retrospective study of 32 patients

Background: Surgery for active endocarditis is indicated in cases of congestive heart failure (CHF), persistent sepsis, systemic embolization and paravalvular involvement. Aim: To assess and report the long term results of surgery in adult patients. Patients and methods: Retrospective review of clinical records and operative procedures of 32 patients aged 43± 13 years (28 women) subjected to reparative surgery for complications of endocarditis between 1993 to 2005. Results: In 25 percent of cases, endocarditis presented as a prolonged sepsis syndrome and in 31 percent as a CHF or both. The causative bacteria was Gram (+) in 53 percent and blood cultures were negative in 47 percent. Preoperative echocardiography showed vegetations in 56 percent of cases. An annular abscess, aortic valve rupture and bicuspid valve, was observed in 13 percent of patients. Post operative mortality was due to persistent sepsis and multiorganic dysfunction in 16 percent. Mean long term follow up was 43.8±47.2 months. Actuarial survival was 78 percent at 146 months. Conclusion: Surgical management of active endocarditis provides a good symptomatic recovery, with an excellent long term actuarial survival.

Endocarditis por Streptococcus pneumoniae resistente a penicilina en niños: Report of a case due to penicillin resistant Streptococcus pneumoniae / Pneumococcal endocarditis in children: report of a case due to penicillin resistant Streptococcus pneumoniae

Streptococcus pneumoniae es el principal agente de infección bacteriana invasora en niños; sin embargo, es extremadamente infrecuente como causa de endocarditis. Esta entidad clínica se manifiesta generalmente como una enfermedad aguda y grave con alta mortalidad, que requiere tratamiento médico-quirúrgico precoz, afectando con mayor frecuencia la válvula mitral. Presentamos el caso de una niña de 6 años 4 meses, de extrema ruralidad, que presentó endocarditis infecciosa (EI) de válvula mitral asociada a meningitis, aislándose en hemocultivos S. pneumoniae resistente a penicilina y se discute las estrategias terapéuticas...

Cirurgia conservadora de próteses aórtica e mitral na endocardite infecciosa / Conservative surgery for aortic and mitral prosthesis in infective endocarditis

A endocardite infecciosa (EI) acometendo próteses valvares é uma complicaçäo freqüente, sendo tratada geralmente com cirurgia, devido ao seu difícil controle clínico e má resposta à antibioticoterapia. Este relato descreve o caso de uma paciente com EI, acometendo simultaneamente as biopróteses aórtica (Ao) e mitral (Mi) após vinte e quatro meses de cirurgia de implantes valvares, submetida a tratamento cirúrgico conservador, e com resultado favorável. Discutem-se as vantagens deste procedimento em situaçöes específicas

Endocarditis infecciosa en pacientes drogadictos endovenosos: presentación clínica y evolución intrahospitalaria / Infective endocarditis in intravenous drug users

Este estudio analizó las características de cuarenta episodios de endocarditis infecciosa en 38 pacientes con drogadicción intravenosa como factor predisponente. Tenían una edad promedio de 28,9 años; 90 por ciento eran de sexo masculino, con compromiso de válvula sana en 82,5 por ciento de los casos; 20 por ciento de los pacientes habían tenido un episodio o más de endocarditis previa; 77,5 por ciento tuvieron afectación derecha; el agente causal más frecuente fue el Staphylococcus aureus, con 70 por ciento de hemocultivos positivos y 90 por ciento de incidencia de HIV. Las complicaciones más frecuentes fueron la insuficiencia cardíaca y el tromboembolismo de pulmón.La mortalidad hospitalaria fue más elevada que la descripta habitualmente en esta población

Pasteurella multocida infective endocarditis: a case report.

A 17-year-old man presented with acute febrile illness with jaundice, embolic skin lesion, heart murmur, renal insufficiency and abnormal CSF. Pasteurella multocida was isolated from blood cultures. In spite of adequate antibiotic treatment for endocarditis of the mitral valve, he developed a fatal ruptured cerebral mycotic aneurysm. Post mortem examination revealed an atrial septal defect, vegetation at the anterior mitral leaflet, intraventricular, subarachnoid and intracerebral hemorrhage.

Infective endocarditis due to Streptococcus sanguis I occurring on a normal mitral valve.

We report a 64 year old lady in whom infective endocarditis of the mitral valve occurred with no previous underlying heart disease. Streptococcus sanguis I was isolated on blood culture and 2-D echo cardiography showed a vegetation on the anterior mitral leaflet. The viridans group of streptococci are classically associated with subacute endocarditis occurring on structurally abnormal valves, but involvement of a normal valve by these organisms is rare.