Purpose: The number of accessible central veins (CVs) affects the prognosis of patients with intestinal failure (IF). The loss of residual CVs should be avoided. We, therefore, evaluated the efficacy of a new CV catheter-exchange technique using a subcutaneous fibrous sheath (FS) in pediatric IF patients. Methods: We retrospectively collected the CV catheter (CVC) data of pediatric IF patients managed from January 2009 to December 2019. The data were divided into two groups; Groups 1 (CVCs placed with the FS method) and Group 2 (CVCs placed by the primary or another insertion). The main outcome was the CVC indwelling time. Results: Eighty-five CVCs were analyzed. The FS method was attempted in 47 cases and succeeded in 40 (85%). No significant difference was observed between the groups regarding characteristics. A log-rank test revealed an equivalent CVC indwelling time between the two groups (Group 1: 268 [126–588] days vs. Group 2: 229 [126–387] days, p = 0.256). Conclusions: The FS method is highly recommended for pediatric IF patients, as its attempt showed a high success rate with an indwelling time equivalent to primary insertion. The FS method leads to the prolonged use of a single CV and thereby contributes to improving the outcomes of pediatric IF patients.
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