<b>Use of a Mechanical Thrombectomy Device to Recanalize a Subacutely Occluded Aortohepatic Bypass After Orthotopic Liver Transplantation</b>

Loupatatzis, Christos; Stoupis, Christoforos; Seiler, Christian; Candinas, Daniel; Do, Dai-Do; Triller, Jürgen

doi:10.1583/04-1447r.1

Cited by 11 publications

(5 citation statements)

References 10 publications

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“…Thrombosis of the hepatic artery and the conduit remains the major problem. [9][10][11][12][13] We believe that meticulous surgical technique, aggressive surveillance, and early intervention are very important in preventing and treating this complication. We also by policy place such recipients on salicylic acid (80 mg once daily) as prophylaxis.…”

Section: Discussionmentioning

confidence: 99%

Twenty years of follow-up of aortohepatic conduits in liver transplantation

Nikitin¹,

Jennings²,

Khan³

et al. 2008

Liver Transpl

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Arterial problems remain a formidable challenge in liver transplantation. In many situations, an aortohepatic conduit can provide a solution. No long-term results (over 5 years) have been reported. This study was designed to assess the impact of aortohepatic conduits on graft survival after liver transplantation and the safety of aortohepatic conduits and to establish the long-term results (up to 20 years) of aortohepatic conduits. Data from 2346 adult liver transplants were prospectively collected into the computerized database and analyzed. In the majority of cases, arterial conduits were constructed from the donor iliac artery obtained at the liver retrieval. Aortohepatic conduits were required in 149 (6.4%) first transplants. The long-term graft survival after liver transplantation using aortohepatic conduits was excellent and comparable to that of the control group. The graft survival was 59% with the conduit versus 67% without the conduit at 5 years of follow-up, 50% versus 52% at 10 years, and 33% versus 35% at 15 years. With up to 20 years of follow-up, there was no statistically significant difference in graft survival, patient survival, hepatic artery complications, or biliary complications. For the same time period, there was no statistically significant difference in graft survival or patient survival for the retransplants with and without aortohepatic conduits. In conclusion, in experienced hands, aortohepatic conduits can be used safely for liver transplantation with no negative impact on long-term graft survival, patient survival, hepatic artery complications, or biliary complications. Excellent long-term results can be obtained.

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Section: Discussionmentioning

confidence: 99%

Twenty years of follow-up of aortohepatic conduits in liver transplantation

Nikitin¹,

Jennings²,

Khan³

et al. 2008

Liver Transpl

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“…In the present study, no HA thrombosis or stenosis was observed during the follow-up period. Thrombosis of the HA and the aortohepatic conduit remains the major problem [ 23 – 25 ]. We believe that a meticulous surgical technique and aggressive surveillance are crucial in preventing this complication, in addition to prophylactic therapies such as acetylsalicylic acid and other post-transplantation medications [ 1 ].…”

Section: Discussionmentioning

confidence: 99%

Placement of an Aortohepatic Conduit as an Alternative to Standard Arterial Anastomosis in Liver Transplantation

Jung

Park

et al. 2018

Ann Transplant

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BackgroundThe aim of this study was to assess the impact of placement of an aortohepatic conduit on graft and patient survival after liver transplantation (LT) in selected patients with an inadequate recipient hepatic artery (HA) for a standard arterial anastomosis.Material/MethodsOf 331 patients who underwent deceased donor LT, 25 (7.6%) who received placement of an aortohepatic conduit at the time of transplantation were included. Clinical characteristics and outcomes, including postoperative complications, conduit patency, and graft and patient survival rates, were analyzed.ResultsAll 25 patients included in this study presented a high preoperative Model for End-stage Liver Disease score (25.4±8.6; range, 6–42) and high rates of retransplantation (n=11, 44%) or previous abdominal – pelvic surgery (n=5, 20%). The observed postoperative vascular complications were portal vein thrombosis in 3 cases (12%) and anastomosis-site bleeding of the aortohepatic conduit in 1 case (4%); there was no HA thrombosis or stenosis in our analysis. With a median follow-up of 37 months (range, 0–69 months), all aortohepatic conduits were patent, and the graft and patient survival rates were 84% and 68%, respectively. The causes of death were graft failure (n=4), pneumonia (n=3), and cerebrovascular accidents (n=1).ConclusionsOur results indicate that placement of an aortohepatic conduit is a feasible alternative to a standard arterial anastomosis in selected patients whose HA and surrounding potential inflow arteries are not suitable for standard arterial anastomosis.

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“…Thrombosis of the hepatic artery and the conduit remains the major problem 9–13. We believe that meticulous surgical technique, aggressive surveillance, and early intervention are very important in preventing and treating this complication.…”

Section: Discussionmentioning

confidence: 99%

Prediction of Subscriber Churn Using Social Network Analysis

Phadke

Uzunalioğlu²,

Mendiratta³

et al. 2013

Bell Labs Tech. J.

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In today's world, mobile phone penetration has reached a saturation point. As a result, subscriber churn has become an important issue for mobile operators as subscribers switch operators for a variety of reasons. Mobile operators typically employ churn prediction algorithms based on service usage metrics, network performance indicators, and traditional demographic information. A newly emerging technique is the use of social network analysis (SNA) to identify potential churners. Intuitively, a subscriber who is churning will have an impact on the churn propensity of his social circle. Call detail records are useful to understand the social connectivity of subscribers through call graphs but do not directly provide the strength of their relationship or have enough information to determine the diffusion of churn influence. In this paper, we present a way to address these challenges by developing a new churn prediction algorithm based on a social network analysis of the call graph. We provide a formulation that quantifies the strength of social ties between users based on multiple attributes and then apply an influence diffusion model over the call graph to determine the net accumulated influence from churners. We combine this influence and other social factors with more traditional metrics and apply machine‐learning methods to compute the propensity to churn for individual users. We evaluate the performance of our algorithm over a real data set and quantify the benefit of using SNA in churn prediction. © 2013 Alcatel‐Lucent.

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Use of a Mechanical Thrombectomy Device to Recanalize a Subacutely Occluded Aortohepatic Bypass After Orthotopic Liver Transplantation

Abstract: The Rotarex thrombectomy system may be considered an alternative to other percutaneous interventions for the treatment of occluded bypass conduits supplying a liver transplant.

Cited by 11 publications

References 10 publications

Twenty years of follow-up of aortohepatic conduits in liver transplantation

Twenty years of follow-up of aortohepatic conduits in liver transplantation

Placement of an Aortohepatic Conduit as an Alternative to Standard Arterial Anastomosis in Liver Transplantation

Prediction of Subscriber Churn Using Social Network Analysis

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