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Related Experiment Videos

Titanium catheter tip for peritoneovenous shunts.

D Franco1, M Labianca, C Smadja

  • 1Groupe de Recherche sur la Chirurgie du Foie, Hôpital Paul Brousse.

Artificial Organs
|February 1, 1988
PubMed
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Peritoneovenous shunting for ascites can fail early due to venous tubing obstruction. Using titanium catheter tips in LeVeen shunts prevented occlusion in cirrhotic patients, significantly improving shunt function and longevity.

Area of Science:

  • Gastroenterology
  • Medical Devices
  • Materials Science

Background:

  • Ascites in cirrhosis patients often requires peritoneovenous (PV) shunting.
  • Early obstruction of the venous tubing is a common complication, leading to high rates of PV shunt failure.
  • The LeVeen shunt is a common device used for PV shunting.

Purpose of the Study:

  • To evaluate the efficacy of titanium catheter tips in preventing venous tubing obstruction in PV shunts.
  • To assess the impact of titanium's thromboresistance on LeVeen shunt patency and function in cirrhotic patients.

Main Methods:

  • A prospective study involving 13 consecutive cirrhotic patients with intractable ascites.
  • LeVeen shunts with titanium catheter tips were implanted.
  • Patients were followed to monitor for shunt occlusion and assess function.

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Main Results:

  • None of the 13 patients experienced venous catheter occlusion during an average follow-up of 8 +/- 2 months.
  • This contrasts with previous studies where the mean interval before shunt occlusion was 4 +/- 3 months.
  • The use of titanium significantly improved shunt patency compared to historical controls.

Conclusions:

  • Titanium catheter tips demonstrate excellent thromboresistance in PV shunts.
  • Utilizing titanium in the venous tubing of LeVeen shunts can significantly prolong shunt patency and function.
  • This approach offers a promising solution to reduce shunt failure in patients with cirrhotic ascites.