Zusammenfassung
In 20–40% beteiligt die infektiöse Endokarditis das Gehirn. Neurologische Symptome sind oft die Erstmanifestation der Erkrankung. Bei der häufigsten neurologischen Komplikation, dem ischämischen Hirninfarkt, ebenso wie bei intrakraniellen Blutungen sind neben einem Herzgeräusch die systemischen Entzündungszeichen wegweisend. Eine Enzephalopathie ist meist durch Hirninfarkte bedingt. Bei Meningitis und Hirnabszess sollte der Nachweis ungewöhnlicher Erreger dringend an eine Endokarditis denken lassen. Therapeutisch ist die antimikrobielle Therapie essenziell. Ein Klappenersatz verbessert die Prognose, ist aber in der akuten Phase nur bei einem Drittel der Patienten nötig. Der Zeitpunkt des Klappenersatzes wird vom Auftreten neurologischer Komplikationen beeinflusst: Bei dringlicher kardiologischer Indikation eines Klappenersatzes ist das Risiko einer perioperativen neurologischen Verschlechterung innerhalb der ersten 3 Tage nach Hirninfarkt vertretbar; bei nicht dringlicher Indikation sollte 2–4 Wochen gewartet werden. Bei Hirnblutungen gibt es kasuistische Berichte von erfolgreichem Klappenersatz innerhalb der ersten 4 Wochen; es wird aber empfohlen, die Operation 4–6 Wochen zu verschieben. Zu den übrigen neurologischen Komplikationen gibt es keine Daten. Ein Patient mit Endokarditis ist auch heute noch eine interdisziplinäre, diagnostische und therapeutische Herausforderung.
Abstract
Infective endocarditis involves the brain in 20–40% of cases. The neurologic syndrome often is the presenting feature. The most frequent neurologic complication is cerebral ischemia. In these patients and those with intracranial hemorrhage, a heart murmur as well as systemic signs of inflammation point to endocarditis. The encephalopathy in endocarditis is mostly due to cerebral infarction. In bacterial meningitis and brain abscess an uncommon isolate arouses suspicion. The most important therapy is antibiotic treatment. Valve replacement improves outcome; in the acute phase of endocarditis, however, it is only necessary in a third of the patients. Neurologic complications interfere with the timing of the valve replacement. If it is urgently required, its risk is reasonable within 3 days after cerebral ischemia; if possible 2–4 weeks should be waited. Cases of successful valve replacement within 4 weeks after intracranial hemorrhage have been reported, but it is recommended to postpone it for 4–6 weeks. There are no data available for the other neurologic complications. Even today patients with endocarditis challenge the diagnostic and therapeutic capacity of various disciplines.
Abbreviations
- BSG:
-
Blutkörpersenkgeschwindigkeit
- CT:
-
Computertomographie
- ICB:
-
intrazerebrale Blutung
- MRT:
-
Magnetresonanztomographie
- OP:
-
Operation
- SAB:
-
Subarachnoidalblutung
- St. aureus :
-
Staphylococcus aureus
- St. pneumoniae :
-
Streptococcus pneumoniae
- spp.:
-
Spezies
- TEE:
-
transösophageale Echokardiographie
- TTE:
-
transthorakale Echokardiographie
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Angstwurm, K., Borges, A.C., Halle, E. et al. Neurologische Komplikationen bei infektiöser Endokarditis . Nervenarzt 75, 734–741 (2004). https://doi.org/10.1007/s00115-004-1685-8
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DOI: https://doi.org/10.1007/s00115-004-1685-8