Abstract
Purpose
The authors present a retrospective analysis of a large series of patients who underwent transjugular intrahepatic portosystemic shunt (TIPS) placement.
Materials and methods
Between March 1992 and December 2006, 658 patients were referred to our centre for TIPS placement. Indications for the procedure were digestive tract bleeding (52.8%), refractory ascites (35.3%), preservation of portal vein patency prior to liver transplantation (3.0%) and thrombosis of the suprahepatic veins (2.3%). Other indications (6.6%) included pleural ascites, portal thrombosis and hepatorenal and hepatopulmonary syndromes. All patients were evaluated with colour Doppler ultrasonography and in a few cases with computed tomography. The portal system was punctured under sonographic guidance. Wallstent, Palmaz and Nitinol thermosensitive stents were used. Embolisation of persistent varices was performed in 6.8% of cases.
Results
Technical success was 98.9%. During a 1,500-day follow-up, the cumulative incidence of stent revision was 25.7% (Nitinol), 32.9% (Wallstent) and 1.8% (Palmaz). Mortality rates were 31.1%, 38.5% and 56.4%, respectively. The technical complications included six cases of heart failure, six of haematobilia, three of stent migration, two of intrahepatic haematoma and one of haemoperitoneum. Eight patients with severe portosystemic encephalopathy (PSE) were treated with a reduction stent.
Conclusions
TIPS placement is safe and effective and may act as a bridge to liver transplantation. Ultrasonography plays a fundamental role in the preliminary assessment, in portal vein puncture and during the follow-up. Stent patency is satisfactory.
Riassunto
Obiettivo
Gli autori presentano un’analisi retrospettiva di un’ampia casistica di pazienti sottoposti a TIPS.
Materiali e metodi
Sono giunti al nostro centro per la TIPS 658 pazienti tra il marzo 1992 e il dicembre 2006. Le indicazioni alla procedura erano: sanguinamento digestivo (52,8%), ascite refrattaria (35,3%), “tutela” della pervietà portale pre-trapianto epatico (3,0%), trombosi delle vene sovraepatiche (2,3%). Altre indicazioni (6,6%) erano ascite pleurica, trombosi portale, sindrome epato-renale ed epato-polmonare. I pazienti sono stati studiati con ecocolor doppler, raramente con tomografia computerizzata; la puntura portale è stata ecoguidata. Sono stati impiegati stent Palmaz, Wallstent e termoespandibili. Nel 6,8% dei casi sono state embolizzate varici persistenti.
Risultati
Il successo tecnico è stato del 98,9%. Durante un follow-up di 1500 giorni, l’incidenza cumulativa di reintervento sugli stent è stata del 25,7% (Nitinol), 32,9% (Wallstent) e 1,8% (Palmaz); la mortalità è stata rispettivamente 31,1%, 38,5% e 56,4%. Le complicanze tecniche sono state: 6 insufficienze cardiache, 6 emobilie, 3 migrazioni di stent, 2 ematomi intraepatici ed 1 emoperitoneo. Otto pazienti con encefalopatia portosistemica (PSE) grave sono stati trattati con stent riduttore.
Conclusioni
La TIPS è sicura ed efficace, può rappresentare un ponte all’OLT. L’ecografia ha un ruolo fondamentale nello studio preliminare, durante la puntura portale e nel follow-up. La pervietà degli stent è soddisfacente.
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Gazzera, C., Righi, D., Valle, F. et al. Fifteen years’ experience with transjugular intrahepatic portosystemic shunt (TIPS) using bare stents: retrospective review of clinical and technical aspects. Radiol med 114, 83–94 (2009). https://doi.org/10.1007/s11547-008-0349-3
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DOI: https://doi.org/10.1007/s11547-008-0349-3