Optimal Imaging Techniques of the Portal Vasculature During TIPS Creation: Use of the CO2 Portogram

Author(s):  
Hector Ferral

Transjugular intrahepatic portosystemic shunt creation is one of the most complex interventional procedures. It requires skills in imaging, vessel catheterization, guidewire techniques, balloon angioplasty, endovascular stent deployment, and embolization techniques. The key step during this procedure is obtaining access into the portal vein. This chapter discusses how to perform a CO2 portogram to obtain access to the portal vein during the creation of a transjugular intrahepatic portosystemic shunt (TIPS). The CO2 portogram may be performed with an angiographic catheter wedged in the hepatic vein, with an occlusion balloon inflated within the hepatic vein, or with the transhepatic needle within the liver parenchyma—the so-called “intraparenchymal” injection. Those performing a CO2 portogram should have knowledge of CO2 and a user-friendly CO2 delivery system to avoid common CO2 complications.

2020 ◽  
Vol 45 (11) ◽  
pp. 3934-3943
Author(s):  
Timo C. Meine ◽  
Cornelia L. A. Dewald ◽  
L. S. Becker ◽  
Aline Mähringer-Kunz ◽  
Benjamin Massoumy ◽  
...  

Abstract Background To assess the technical feasibility, success rate, puncture complications and procedural characteristics of transjugular intrahepatic portosystemic shunt (TIPS) placement using a three-dimensional vascular map (3D-VM) overlay based on image registration of pre-procedural contrast-enhanced (CE) multi-detector computed tomography (MDCT) for portal vein puncture guidance. Materials and methods Overall, 27 consecutive patients (59 ± 9 years, 18male) with portal hypertension undergoing elective TIPS procedure were included. TIPS was guided by CE-MDCT overlay after image registration based on fluoroscopic images. A 3D-VM of the hepatic veins and the portal vein was created based on the pre-procedural CE-MDCT and superimposed on fluoroscopy in real-time. Procedural characteristics as well as hepatic vein catheterization time (HVCT), puncture time (PT), overall procedural time (OPT), fluoroscopy time (FT) and the dose area product (DAP) were evaluated. Thereafter, HVCT, PT, OPT and FT using 3D-VM (61 ± 9 years, 14male) were compared to a previous using classical fluoroscopic guidance (53 ± 9 years, 21male) for two interventional radiologist with less than 3 years of experience in TIPS placement. Results All TIPS procedure using of 3D/2D image registered 3D-VM were successful with a significant reduction of the PSG (p < 0.0001). No clinical significant complication occurred. HVCT was 14 ± 11 min, PT was 14 ± 6 min, OPT was 64 ± 29 min, FT was 21 ± 12 min and DAP was 107.48 ± 93.84 Gy cm2. HVCT, OPT and FT of the interventionalist with less TIPS experience using 3D/2D image registered 3D-VM were statistically different to an interventionalist with similar experience using fluoroscopic guidance (pHVCT = 0.0022; pOPT = 0.0097; pFT = 0.0009). PT between these interventionalists was not significantly different (pPT = 0.2905). Conclusion TIPS placement applying registration-based CE-MDCT vessel information for puncture guidance is feasible and safe. It has the potential to improve hepatic vein catherization, portal vein puncture and radiation exposure.


2017 ◽  
Vol 01 (01) ◽  
pp. 20-26
Author(s):  
Abbas Chamsuddin ◽  
Lama Nazzal ◽  
Thomas Heffron ◽  
Osama Gaber ◽  
Raja Achou ◽  
...  

AbstractIntroduction: We describe a technique we call “Meso-transjugular intrahepatic portosystemic shunt (MTIPS)” for relief of portal hypertension secondary to portal vein thrombosis (PVT) using combined surgical and endovascular technique. Materials and Methods: Nine adult patients with PVT underwent transjugular intrahepatic portosystemic shunt through a combined transjugular and mesenteric approach (MTIPS), in which a peripheral mesenteric vein was exposed through a minilaparotomy approach. The right hepatic vein was accessed through a transjugular approach. Mechanical thrombectomy, thrombolysis, and angioplasty were performed when feasible to clear PVT. Results: All patients had technically successful procedures. Patients were followed up for a mean time of 13.3 months (range: 8 days to 3 years). All patients are still alive and asymptomatic. Conclusion: We conclude that MTIPS is effective for the relief of portal hypertension secondary to PVT.


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Jiaxiang Meng ◽  
Qing Wang ◽  
Kai Liu ◽  
Shuofei Yang ◽  
Xinxin Fan ◽  
...  

Lipopolysaccharide (LPS) and endothelin- (ET-) 1 may aggravate portal hypertension by increasing intrahepatic resistance and splanchnic blood flow. In the portal vein, after TIPS shunting, LPS and ET-1 were significantly decreased. Our study suggests that TIPS can benefit cirrhotic patients not only in high hemodynamics related variceal bleeding but also in intestinal bacterial translocation associated complications such as endotoxemia.


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