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Anatomical Basis for Selective Multiple Arterial Reconstructions in Living Donor Liver Transplantation

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Abstract

Background

Need for routine reconstruction of all arteries in grafts with multiple arterial inflows remains an unsettled debate. The aim of following article is to review an anatomical basis of a decision-making strategy to deal with multiple arteries in living donor liver transplantation (LDLT).

Methods

LDLT performed between August 2009–2019 were included. Grafts were classified into grafts with single artery (group 1); multiple arteries, all reconstructed (group 2); and multiple arteries, one reconstructed (group 3). Frequency of double arteries in relation to graft type, type of reconstruction, incidence of arterial and biliary complications and survival was compared.

Results

1086 LDLT were analysed (adults: 750, paediatric: 336). 1007 grafts (92.2%) had single artery (group 1), and 79 (7.8%) grafts had multiple arteries. All arteries were reconstructed in 19 (24%) patients (group 2), while 60 grafts (75.9%) had only one artery reconstructed (group 3). Left lobe (18.8%) and left lateral segments (10.7%) grafts were more likely to have multiple arteries (p = 0.001). The likelihood of reconstructing multiple arteries was similar in all graft types, 27.3% in right and 25% and 21.4% in left lobe and left lateral segments, respectively (p > 0.05). There was no difference in biliary complications (p = 0.85), hepatic artery thrombosis (p = 0.82), and post-surgical hospital stay (p = 0.38) between the three groups. The presence of multiple arteries or their selective reconstruction did not affect survival (p = 0.73).

Conclusions

Multiple arterial inflows are not an uncommon entity and demonstration of good hilar collateralization helps in avoiding unnecessary arterial reconstruction without adverse outcomes.

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Correspondence to Yogesh Puri.

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Puri, Y., Palaniappan, K., Rammohan, A. et al. Anatomical Basis for Selective Multiple Arterial Reconstructions in Living Donor Liver Transplantation. Langenbecks Arch Surg 406, 1943–1949 (2021). https://doi.org/10.1007/s00423-021-02176-y

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