Reece A, Ubhi T, Craig A R, Newell S J
Neonatal Unit, St James's University Hospital, Leeds LS9 7TF, UK.
Arch Dis Child Fetal Neonatal Ed. 2001 Mar;84(2):F129-30. doi: 10.1136/fn.84.2.f129.
To assess the value of contrast versus plain radiography in determining radio-opaque long line tip position in neonates.
In a prospective study, plain radiography was performed after insertion of radio-opaque long lines. If the line tip was not visible on the plain film, a second film with contrast was obtained in an attempt to visualise the tip.
Sixty eight lines were inserted during the study period, 62 of which were included in the study. In 31, a second radiographic examination with contrast was necessary to determine position of the tip. In 29 of these, the line tip was clearly visualised with contrast. On two occasions, the line tip could not be seen because the contrast had filled the vein and obscured the tip from view. Eight of the lines that required a second radiograph with contrast were repositioned.
Intravenous contrast should be routinely used in the assessment of long line position in the neonate.
评估在确定新生儿不透X线长导管尖端位置时，对比剂造影与普通X线摄影的价值。
在一项前瞻性研究中，于插入不透X线长导管后进行普通X线摄影。如果在平片上看不到导管尖端，则获取第二张含对比剂的片子，试图观察到尖端。
在研究期间共插入68根导管，其中62根纳入研究。31根导管需要进行第二次含对比剂的影像学检查以确定尖端位置。其中29根导管的尖端通过对比剂清晰可见。有两次，由于对比剂充满静脉而遮挡了尖端，导致看不到尖端。需要第二次含对比剂X线片的8根导管重新进行了定位。
在评估新生儿长导管位置时应常规使用静脉对比剂。
