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  • 1
    ISSN: 1433-0474
    Keywords: Schlüsselwörter APC-Resistenz ; Säugling ; Thrombus der Pulmonalarterie ; Key words APC-Resistence ; Infant ; Thrombosis of the Pulmonary Artery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary A clinically healthy 6 week old infant underwent cardiological examination because of a slight heart murmur. On echocardiography, we detected a round thrombus of 4 millimeters diameter originating in the ductus arteriosus Botalli and extending into the pulmonary artery. Molecular testing (PCR amplification method) revealed a heterozygous mutation responsible for factor V Leiden. No additional risk factors could be detected neither in the case history nor in the laboratory findings. The clinical course until the age of 17 months remained normal. She was not treated, but a prophylactical anticoagulation is recommended for the case of risk situations (surgery, menstruation, pregnancy). Discussion: Until now carriers of the factor V Leiden were divided into symptomatic patients and healthy carriers. Our case shows, that heterozygous APC-resistance may cause asymptomatic thrombosis in seemingly healthy neonates.
    Notes: Zusammenfassung Es wird über einen klinisch gesunden, 6 Wochen alten Säugling berichtet, der aufgrund eines leisen Herzgeräusches kardiologisch untersucht wurde. Echokardiographisch fand sich ein rundlicher, aus dem Ductus arteriosus in die Pulmonalarterie reichender Thrombus von 4 mm Durchmesser. Wir konnten molekulargenetisch eine heterozygote APC-Resistenz nachweisen. Zusätzliche Risikofaktoren fanden sich weder in der Anamnese noch unter den untersuchten Laborparametern. Der bisher beobachtete Verlauf bis zum Alter von 17 Monaten blieb komplikationslos. Es erfolgte keine Therapie, sondern eine Beratung der Familie zu einer prophylaktischen Antikoagulation in Risikosituationen (z.B. operative Eingriffe, Wochenbett). Diskussion: Bislang erfolgte eine Unterteilung der Träger des Faktor-V-Leiden in symptomatische Patienten und asymptomatische Träger. Unser Fall zeigt, daß die heterozygote APC-Resistenz auch asymptomatische Thrombosen bei anscheinend gesunden Neugeborenen verursachen kann.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of pediatrics 152 (1993), S. 232-235 
    ISSN: 1432-1076
    Keywords: Cerebral arteries ; Blood flow velocity ; Newborn infant ; Tobacco smoke ; Pregnancy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Cerebral blood flow velocities (CBFV) were measured by the pulsed Doppler method in 41 infants of smoking mothers and in 59 apparently healthy control infants. Although gestational age, birth weight, and systolic blood pressure were lower in infants exposed to tobacco smoke prenatally, systolic (65±11 vs. 47±12 cm/s, mean ±SD;P〈0.001), mean (36±6 vs. 25±6 cm/s;P〈0.001), and diastolic (17±4 vs 13±4 cm/s;P〈0.001) CBFVs in the anterior cerebral artery were significantly higher when compared to control infants. Similar differences were seen in the internal carotid and in the basilar arteries. Multiple regression analysis did not reveal differences other than maternal smoking to explain these observations. We conclude that prenatal tobacco smoke exposure is related to increased CBFVs in newborn infants. Further studies should determine whether this relation is not only statistical but causal and whether increased CBFVs are an indicator of prolonged effects of prenatal tobacco smoke exposure.
    Type of Medium: Electronic Resource
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