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Right Heart Catheterization via Dialysis Arteriovenous Shunts in End-Stage Renal Disease Patients.

OBJECTIVES: Right heart catheterization is an important diagnostic tool but carries risks of adverse events. Little is known about the feasibility and safety of using dialysis arteriovenous (AV) shunts. We aim to evaluate the feasibility and safety of using dialysis AV shunts for access in right heart catheterization.

METHODS: Hemodialysis patients who required right heart catheterization were prospectively enrolled. A 7 Fr sheath was inserted and a balloon-tipped pulmonary artery catheter was advanced for right heart catheterization. Patients were followed for 1 month, and technical success, procedure details, and complications were recorded.

RESULTS: Thirteen patients received right heart catheterization via AV shunts. Three patients were evaluated for heart failure, and 10 were examined for pulmonary hypertension. Median patient age was 69 years (interquartile range [IQR], 58-77 years), and median shunt age was 50 months (IQR, 32-75 months). Five shunts were located in the upper arm, 2 were in the right arm, and 5 were native fistulas. All AV shunt punctures were successful on the first attempt. All right heart catheterizations were completed via AV shunts, and the technical success rate was 100%. Median fluoroscopy time was 6.9 minutes. No venous access complications or right heart catheterization-related complications occurred immediately after the procedure or during the 1-month follow-up period.

CONCLUSIONS: AV dialysis shunts can be used for venous access for right heart catheterization with acceptable feasibility and patient tolerability. Further randomized studies are needed to confirm the benefits of this approach compared with other approaches.

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