Zusammenfassung
Blutungen gehören nicht nur zu den häufigsten, sondern auch zu den potenziell lebensbedrohlichen Komplikationen einer Therapie mit Antikoagulanzien. Wesentlich beeinflusst wird das Risiko durch die Nebenerkrankungen des Patienten und die Begleitmedikation. Bereits durch Blutung klinisch manifest gewordene Ulzera im Gastrointestinaltrakt besitzen ein hohes Rezidivrisiko unter Antikoagulation. Etablierte Scoresysteme bieten eine Möglichkeit, das generelle Blutungsrisiko abzuschätzen.
Bei Verwendung von unfraktioniertem Heparin ist die kontinuierliche i.v.-Therapie der i.v.-Bolusgabe hinsichtlich der Blutungsrate überlegen, niedermolekulare Heparine wiederum sind vergleichbar sicher bei noch niedrigerer Rate an Blutungskomplikationen.
Typischerweise findet sich im endoskopischen Bild neben den üblichen Pathologien häufiger keine lokalisierbare Blutungsquelle.
Zur Vermeidung derartiger Komplikationen sollte stets eine sorgfältige Indikationsstellung erfolgen, die Antikoagulation mit geringster Intensität gewählt und wenn immer möglich eine ambulante Selbstmessung angestrebt werden. Eine routinemäßige gastroskopische Kontrolle vor Beginn einer Antikoagulation ist nicht indiziert.
Abstract
Anticoagulation-related bleeding is by far the most common complication caused by these compounds. It is also potentially life-threatening. The patient’s comorbidities and comedication impact heavily on individual risk. A history of gastrointestinal bleeding due to ulceration predisposes to recurrent bleeding. Risk of bleeding can be estimated using established scoring systems.
Continuous i.v. heparin infusion is superior to i.v. bolus application in terms of bleeding complication rates, whereas low-molecular-weight-heparins are as effective and even more advantageous in terms of such complications.
Typically, endoscopy reveals the usual pathologies with no identifiable bleeding source.
In order to avoid such a complication, indications for anticoagulation therapy should be carefully selected, the lowest possible level of anticoagulation chosen and, whenever possible, self-monitoring should be recommended. A routine gastroscopy before starting anticoagulant therapy is not indicated.
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Halbritter, K.M., Hochauf, S. & Schellong, S.M. Gastrointestinale Nebenwirkungen von Antikoagulanzien. Gastroenterologe 1, 180–187 (2006). https://doi.org/10.1007/s11377-006-0029-6
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DOI: https://doi.org/10.1007/s11377-006-0029-6