Vasiliki Karava1, Pascal Jehanno2, Theresa Kwon3, Georges Deschênes3, Marie-Alice Macher3, Pierre Bourquelot4. 1. Pediatric Nephrology Department, Robert Debré Hospital, APHP, 48 Boulevard Sérurier, 75019, Paris, France. vasilikikarava@hotmail.fr. 2. Pediatric Orthopaedic Surgery Department, Robert Debré Hospital, APHP, Paris, France. 3. Pediatric Nephrology Department, Robert Debré Hospital, APHP, 48 Boulevard Sérurier, 75019, Paris, France. 4. Angio-access Surgery Department, Clinique Jouvenet, Paris, France.
Abstract
BACKGROUND: This study aimed to describe the efficiency and longevity of arteriovenous fistula (AVF) for hemodialysis (HD) in children weighing ≤20 kg. METHODS: We collected data of all AVFs created using microsurgery techniques between 1988 and 2015. Success was considered as the ability to use the AVF for HD. Primary and secondary patency rates were measured. RESULTS: Forty-eight AVFs (35 forearm, 13 upper arm) were created in 41 children with a median weight of 13.5 kg (range 5.5-20). The need for a second AVF was significantly higher in younger and thinner children at the time of AVF creation (p = 0.046 and p = 0.019, respectively). Successful use for HD occurred in 42 AVFs (87.5%), while six (12.5%) resulted in failure for early thrombosis or nonmaturation. Median time to first cannulation was 18.8 weeks (range 2-166.3). Primary and secondary patency rates at 1, 5, and 10-year follow-ups were 54.2%, 29.2%, and 13.7%; and 85.4%, 57.7%, and 33%, respectively. Almost one third of thromboses after first AVF cannulation were observed at kidney transplantation (KT) perioperatively. At the end of the follow-up (median duration 5.07 years, range 0-17.95), one patient was still on HD via AVF, two died of unrelated reason, and 38 were transplanted-one of whom returned to HD with a new AVF. CONCLUSIONS: AVF using microsurgery techniques is feasible in young children, showing an early failure rate of 12.5%. Time to first cannulation may be rather long, but secondary patency is excellent. Thrombosis rate is high during KT.
BACKGROUND: This study aimed to describe the efficiency and longevity of arteriovenous fistula (AVF) for hemodialysis (HD) in children weighing ≤20 kg. METHODS: We collected data of all AVFs created using microsurgery techniques between 1988 and 2015. Success was considered as the ability to use the AVF for HD. Primary and secondary patency rates were measured. RESULTS: Forty-eight AVFs (35 forearm, 13 upper arm) were created in 41 children with a median weight of 13.5 kg (range 5.5-20). The need for a second AVF was significantly higher in younger and thinner children at the time of AVF creation (p = 0.046 and p = 0.019, respectively). Successful use for HD occurred in 42 AVFs (87.5%), while six (12.5%) resulted in failure for early thrombosis or nonmaturation. Median time to first cannulation was 18.8 weeks (range 2-166.3). Primary and secondary patency rates at 1, 5, and 10-year follow-ups were 54.2%, 29.2%, and 13.7%; and 85.4%, 57.7%, and 33%, respectively. Almost one third of thromboses after first AVF cannulation were observed at kidney transplantation (KT) perioperatively. At the end of the follow-up (median duration 5.07 years, range 0-17.95), one patient was still on HD via AVF, two died of unrelated reason, and 38 were transplanted-one of whom returned to HD with a new AVF. CONCLUSIONS: AVF using microsurgery techniques is feasible in young children, showing an early failure rate of 12.5%. Time to first cannulation may be rather long, but secondary patency is excellent. Thrombosis rate is high during KT.
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