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Das „Seralyzer®-System" (AMES) wird zur quantitativen Bestimmung von Bilirubinkonzentrationen in Erwachsenen- und Neugeborenenplasmen eingesetzt und mit konventionellen Methoden verglichen. Die Präzision in Serie an Humanplasma beträgt im Normalbereich 0,95-8,8896, im erhöhten Konzentrationsbereich 2,64-14,3%, an Kontrollseren 3,20-6,78%, am Neugeborenenplasma 8,60%. Für die Präzision von Tag zu Tag ergibt sich an Humanplasma im Gesamtbereich 10,5-15,3%, an Kalibratoren 4,35-6,17%, an Kontrollseren im Normalbereich 9,27-20,9%, im erhöhten Bereich 9,25-23,5%. Die Wiederfindung deklarierter Werte bei Kalibratoren und Kontrollseren ist befriedigend. Eine Linearität bis 20 mg/dl ist auch bei Neugeborenenplasma erreichbar. Die Speicherdauer der Kalibrierung beträgt mehr als 30 Tage. Die Grenzbedingungen der internen und externen Qualitätskontrolle und des „State of the art" werden einwandfrei erfüllt. Hämoglobin und Matrix-beeinflussende Substanzen interferieren. Aufgrund eines eingehenden Vergleichs von über 3000 Meßwerten mit Literaturdaten kann festgestellt werden, daß die „ Trockenchemie-Analytik" des Seralyzer-Systems für Bilirubin den klinischen Anforderungen genügt.
We report a case of a 2-day-old neonate with bilious vomiting and abdominal distension. A small bowel obstruction with ileal perforation due to a misplaced clamping of the umbilical cord was apparent before laparotomy. This complication was a sequala after clamping the cord too close to the abdominal wall in a case where there was a hernia into the cord with intestinal content. A herniation of abdominal contents due to an omphalocele minor or a hernia must be taken into consideration during the inspection of the umbilical cord before clamping.
Characterization of neonates born to mothers with SARS-CoV-2 infection: review and meta-analysis
(2020)
Characterization of neonates born to mothers with SARS-CoV-2 infection has been partially carried out. There has been no systematic review providing a holistic neonatal presentation including possible vertical transmission. A systematic literature search was performed using PubMed, Google Scholar and Web of Science up to June, 6 2020. Studies on neonates born to mothers with SARS-CoV-2 infection were included. A binary random effect model was used for prevalence and 95% confidence interval. 32 studies involving 261 neonates were included in meta-analysis. Most neonates born to infected mothers did not show any clinical abnormalities (80.4%). Clinical features were dyspnea in 11 (42.3%) and fever in 9 newborns (19.1%). Of 261 neonates, 120 neonates were tested for infection, of whom 12 (10.0%) tested positive. Swabs from placenta, cord blood and vaginal secretion were negative. Neonates are mostly non affected by the mother's SARS-CoV-2 infection. The risk of vertical transmission is low.