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Prolonged peripheral parenteral nutrition with an ultrafine cannula and low‐osmolality feed

Peripheral parenteral nutrition is an attractive alternative to centrally delivered parenteral nutrition because it obviates the need for central venous cannulation and its attendant complications. Some 45 consecutive patients were fed peripherally using a 22‐G polyurethane catheter and a fat‐based, low‐osmolality feed. Of these patients, 36 were fed for a median of 8.5 (range 3–31) days without peripheral vein thrombophlebitis (PVT). Seven patients developed PVT after a median of 6 (range 5–7) days. The cumulative daily risk of PVT was 0.016 episodes per day. These results suggest that prolonged (more than 7 days) problem‐free peripheral parenteral nutrition is possible.