Pediatric Radiology

, Volume 26, Issue 7, pp 435–438 | Cite as

Effects of umbilical arterial catheterization on mesenteric hemodynamics

  • T. Rand
  • M. Weninger
  • C. Kohlhauser
  • S. Bischof
  • G. Heinz-Peer
  • S. Trattnig
  • C. Popow
  • H. R. Salzer
Article

Abstract

Impairment of mesenteric blood flow due to the use of umbilical artery catheters (UAC) may increase the risk of necrotizing enterocolitis (NEC) in newborn infants. We used Duplex Doppler sonography to investigate the degree of vessel obstruction due to UAC and their effect on visceral hemodynamics in 12 newborn infants. Ultrasonography was performed before and immediately after removal of the UAC, which was positioned above the ostia of the celiac and superior mesenteric arteries (SMA). Vessel diameter, peak systolic blood flow velocity (PSFV), end diastolic blood flow velocity (EDFV), and Pourcelot's resistance index (RI) were measured in the celiac trunk and the SMA within 1 cm of their origins. Removal of the UAC led to a significant increase in mean PSFV (celiac trunk: 50 cm/s ± 15 vs 62 cm/s ± 0.22,P < 0.05; SMA: 52 cm/s ± 0.17 vs 72 cm./s ± 0.21,P < 0.05). RI increased from 0.7 ± 0.14 to 0.74 ± 0.13 and from 0.73 ± 0.1 to 0.76 ± 0.13 for the celiac trunk and SMA, respectively. The EDFV and vessel diameters did not change significantly after UAC removal. Our results suggest that UAC cause a decrease in mesenteric blood flow. Therefore, their use in hemodynamically unstable neonates or in those with gastrointestinal disease should be very carefully considered.

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • T. Rand
    • 1
  • M. Weninger
    • 2
  • C. Kohlhauser
    • 2
  • S. Bischof
    • 2
  • G. Heinz-Peer
    • 1
  • S. Trattnig
    • 1
  • C. Popow
    • 2
  • H. R. Salzer
    • 2
  1. 1.Department of Radiology, Ludwig Boltzmann Institute for Radiologic Tumor DiagnosisUniversity of ViennaViennaAustria
  2. 2.Division of Neonatology, Department of PediatricsUniversity of ViennaWähringer Gürtel 18–20ViennaAustria

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