Zusammenfassung
Frühgeborene können durch virushaltige Muttermilch ihrer HCMV(Human Cytomegalovirus)-seropositiven
Mütter infiziert werden. 96 % aller seropositiven Mütter reaktivieren das Virus in
der Brustdrüse, 37 % der Frühgeborenen < 1500 g Geburtsgewicht infizieren sich, 49
% davon zeigen mindestens ein Symptom dieser Infektion. Zur Beantwortung der Frage,
ob die Vorteile der Muttermilchernährung Frühgeborener die Nachteile einer eventuellen
HCMV-Infektion aufwiegen, fehlt bislang Datenmaterial, das auch Langzeitergebnisse
einschließt. Eine Inaktivierung des Virus in der Muttermilch kann nur die Pasteurisierung
leisten, allerdings verbunden mit Qualitätsverlusten in der Zusammensetzung der Milch,
deren Konsequenzen auch noch nicht hinreichend bekannt sind.
Die drei beteiligten Kliniken haben auf der Basis der aktuell verfügbaren Daten entschieden,
weiterhin auch sehr kleine Frühgeborene mit supplementierter, jedoch nicht behandelter
Muttermilch zu ernähren, allerdings nur mit Aufklärung und Einwilligung der Eltern.
Abkürzungen
HCMV:Humanes Cytomegalovirus
VLBW :Very low birth weight
ELBW:Extremly low birth weight
Abstract
Preterm infants can be infected with human cytomegalovirus (HCMV) transmitted via
breast milk of their HCMV-seropositive mothers, 96 % of whom reactivate the virus
during lactation. 38 % of exposed VLBW infants become infected, with 48 % of these
developing at least one symptom. Whether priority should be given to the multiple
advantages of breast milk feeding or to the avoidance of a possible HCMV infection
by exclusive formula feeding still cannot be decided due to insufficient data on the
long-term outcome of infected infants. Inactivation of HCMV in breast milk can be
achieved safely only via heat treatment, but the clinical consequences resulting from
the use of pasteurized breast milk are unknown. Given the above situation, the authors
decided to continue breast-feeding of VLBW and ELBW infants in their units after obtaining
informed parenteral consent, until data for an evidence-based decision become available.
Schlüsselwörter
Frühgeborene - HCMV - CMV - Muttermilch - Transmission - Infektion
Key words
Preterm - infant - HCMV - breast milk - transmission - infection
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Dr. R. Goelz
Abteilung Neonatologie der Universitätsklinik für Kinderheilkunde und Jugendmedizin
Calwerstrasse 7
D-72076 Tübingen
Phone: 07071/29 80895
Fax: 07071 - 295923
Email: rrgoelz@med.uni-tuebingen.de