Zusammenfassung
Die tiefe Venenthrombose stellt eine häufige Erkrankung dar, deren klinische Diagnose
aufgrund der unspezifischen Symptomatik oft unsicher ist. Die diagnostische Methode
der Wahl ist heute die Kompressions- oder Duplexsonographie. Bei unsicheren Befunden
ist eine Phlebographie indiziert. Im Rahmen der Ursachenklärung spielen die verschiedenen
Thrombophilien, bei älteren Patienten auch die Tumorsuche, eine wichtige Rolle. Die
klassische Behandlung besteht aus der therapeutischen Antikoagulation mit Heparin,
die möglichst rasch eingeleitet werden muss, sowie der anschließenden Sekundärprophylaxe.
Niedermolekulare Heparine stellen heute die Therapie der Wahl in der Initialphase
dar, sie bieten den Vorteil der einfacheren und sichereren Anwendung sowie die Möglichkeit
zur früheren Mobilisierung und ambulanten Therapie. Im Rahmen der Sekundärprophylaxe
kommen orale Antikoagulanzien zum Einsatz, bei Kontraindikationen ist auch hier der
Einsatz von niedermolekularen Heparinen möglich. Die Dauer ist dabei vor allem von
Lokalisation und Ausdehnung der Thrombose sowie von begleitenden Risikofaktoren abhängig
und muss individuell festgelegt werden. Eine wichtige Rolle bei der Verhinderung postthrombotischer
Syndrome spielt die Kompressionsbehandlung. Durch die Entwicklung neuer antithrombotischer
Wirkstoffe wie Pentasaccharide oder orale Thrombininhibitoren ergeben sich neue Perspektiven
in der Prophylaxe und Therapie thromboembolischer Erkrankungen.
Abstract
Deep vein thrombosis is a common disease, but clinical diagnosis is often unreliable
due to unspecific symptoms. Today, compression or duplex ultrasonography is the diagnostic
method of choice in most patients. Venography should be performed in case of uncertain
ultrasound test results. Predisposing factors for venous thromboembolism like thrombophilias
or malignant disease should be examined. By initial treatment with heparin a therapeutic
range should be reached as soon as possible. Low molecular weight heparins are the
initial treatment of choice, they are at least as effective and safe as unfractionated
heparin. Due to the advantage of simplicity of administration, they have the potential
for ambulant treatment. Initial heparin therapy is usually followed by long-term treatment
with oral anticoagulants, in case of contraindications use of low molecular weight
heparins is also possible. The optimal duration depends on localization of thrombosis
and concomitant risk factors, and should be individualized. Compression therapy should
be performed to reduce the incidence of postthrombotic syndrome. Development of new
antithrombotic agents like pentasaccharides or oral thrombin inhibitors has raised
new possibilities in prophylaxis and treatment of venous thromboembolism.
Schlüsselwörter
Tiefe Venenthrombose - Diagnostik - Therapie - Antikoagulation - NMH - Thrombophilie
Key words
Deep vein thrombosis - diagnosis - treatment - anticoagulation - LMWH - thrombophilia
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Dr. med. Christian Kirchhof
Innere Abteilung, Gefäßzentrum, Franziskus-Krankenhaus Berlin
Budapester Straße 15-19
10787 Berlin