Other anamnestic and clinical data will be collected (gestational age, umbilical arterial pH, race, obstetrical anamnesis, mode of delivery, umbilical arterial and venous catheters, patent ductus arteriosus, respiratory distress syndrome, mechanical ventilation, episodes of clinical sepsis).
Free flowing CSF indicated that the peritoneal catheter was patent.
Air embolization can occur following the removal of a central venous catheter A patent foramen ovale (PFO) allows air to pass from the venous to the arterial circulation (paradoxical air embolism) Air may trigger the release of cytokines by the arterial endothelium resulting in the development of the systemic inflammatory response syndrome (SIRS) None declared.
ACTs drawn from catheters kept patent using heparin flush also result in prolonged measurements.
Baseline ACTs drawn from radial arterial catheters, kept patent using a heparin flush system, resulted in elevated measurements, despite withdrawing seven times the deadspace before taking a sample.
Between samplings, the catheter was kept patent using a heparin lock (100 IU heparin ml−1, Lock Flush, Hospira, Lake Forest, Ill, USA).
However, in some patients under careful care and regular monitoring, the tunnelled catheter may remain patent and infection free for long periods of time, but this is not predictable.
Catheters were kept patent with 4% sodium citrate in sterile saline (Jorgensen Laboratories, Inc., Loveland, CO, USA).
The catheters were kept patent by intermittent flushing with sterile sodium citrate throughout the procedure.
