Five years' experience of PAS Port intravenous access system in adult cystic fibrosis

An implantable venous access system provides a reliable and painless entry site for intravenous treatment. This study reports the authors' experience with such a system in adult patients with cystic fibrosis. Sixty five (87%) of 75 PAS Ports were placed successfully in 57 patients with cystic fibrosis. Because of early difficulties in advancing the catheter in patients whose veins had been traumatized by repeated courses of intravenous antibiotics, a technique was developed whereby venous entry was gained by direct subclavian puncture. This catheter insertion method was used in 53 (82%) attempts and the catheter was then passed by subcutaneous tunnelling to the port site on the ventral aspect of the upper arm. Fifty seven (88%) insertions were successful under local anaesthetic. The major early and late complications were iatrogenic pneumothorax (six cases) and infection (five cases), respectively. Late complications were more common when there was coexisting disease, e.g. diabetes mellitus, or an acute severe respiratory exacerbation, or when the Port was used for parenteral feeding. In conclusion, the PAS Port can be inserted safely by direct subclavian puncture. It was well tolerated and universally liked by the patients.

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