Vascular reconstruction and outcomes of 220 adult-to-adult right lobe living donor liver transplantations

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Abstract

Rationale: Adult-to-adult right lobe living donor liver transplantation is a  viable alternative to whole liver transplantation from a  deceased donor. The key aspect of the surgical procedure is the restoration of adequate graft blood flow and maintenance of sufficient volume of well vascularized parenchyma in the donor. Specific features of vascular anatomy in the donor and the recipient can be eventual cause for significant technical difficulties during transplantation. They can also increase the risk of complications and deteriorate graft functioning.

Aim: To identify the incidence of various types of afferent and efferent vascularization of right lobe of the liver, potential techniques of vascular reconstructive procedures, rates and types of postoperative complications, as well as immediate surgical results.

Materials and methods: We retrospectively analyzed the data on 220 right lobe liver transplantations adult patients, consecutively performed from 2010 to 2017 in one center. Specific characteristics of liver vascularization in donors and recipients were determined by pre-operative computed tomography and intra-operatively. The information on the types of vascular reconstruction, complications and results of surgical procedures was obtained from patients' medical files.

Results: The following variants of blood supply to the right liver lobe were seen most frequently: portal vein trifurcation 22%, shortened trunk of the right portal vein branch 13%, supplementary v. hepatica from SgVIII with a diameter of > 5 mm 22%, supplementary lower right v. hepatica 17%, isolated venous outflow from all right lobe segments 2%, two arteries 2%. In addition, 17% of the recipients had portal vein thrombosis and 1% portal vein fibrosis. During the follow-up all donors remained alive. The rate of surgical complications was 12.5%, among them bile pocket or biloma 8.5%, intra-abdominal bleeding 2.5%, wound complications 1.5%. The rate of early post-operative complications in the recipients was 31.5%, with 4.5% of them being vascular and 15.5% biliary. The 6-months and 4-years survival of the recipients (Kaplan-Meier) was 98% and 95%, respectively.

Conclusion: Immediate and longterm survival of the recipients of living donor right lobe live grafts, as well as absence of fatalities among their donors, confirm high effectiveness and expedience of this type of intervention. The observed anatomic variety of blood supply to the right liver lobe stipulates stringent requirements to the quality of preoperative diagnostics, deliberate donor selection, thorough planning of the procedure and high qualification of the surgical team. A  relatively high rate of postoperative complications warrants the necessity of an intensive diagnostic monitoring in the early post-operative period and active strategies of their correction.

About the authors

S. E. Voskanyan

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Sergey E. Voskanyan – MD, PhD, Surgeon-in-Chief, Head of the Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

A. I. Artemyev

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Aleksey I. Artemyev – MD, PhD, Head of the Surgery Department No. 2, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

A. I. Sushkov

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Author for correspondence.
Email: sushkov.transpl@gmail.com

Alexander I. Sushkov – MD, PhD, Head of New Surgical Technologies Laboratory, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098, tel.: +7 (916) 177 89 24

Russian Federation

I. Yu. Kolyshev

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Il'ya Yu. Kolyshev – MD, PhD, Head of the Surgery Department No. 1, Head of the Center of New Surgical Technologies.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

V. S. Rudakov

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Vladimir S. Rudakov – MD, PhD, Surgeon, Surgery Department for Coordination of Human Organ and/ or Tissues Donation, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

M. V. Shabalin

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Maksim V. Shabalin – MD, PhD, Surgeon, Surgery Department No. 1, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

E. V. Naydenov

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Evgeniy V. Naydenov – MD, PhD, Surgeon, Surgery Department No. 2; Senior Research Fellow, New Surgical Technologies Laboratory, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

A. P. Maltseva

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Anna P. Maltseva – MD, Surgeon, Surgery Department No. 1; Junior Research Fellow, New Surgical Technologies Laboratory, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

D. S. Svetlakova

State Research Center – Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency

Email: fake@neicon.ru

Dar'ya S. Svetlakova – MD, Surgeon, Surgery Department for Coordination of Human Organ  and/or Tissues Donation, Surgery and Transplantation Center.

23 Marshala Novikova ul., Moscow, 123098

Russian Federation

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Copyright (c) 2018 Voskanyan S.E., Artemyev A.I., Sushkov A.I., Kolyshev I.Y., Rudakov V.S., Shabalin M.V., Naydenov E.V., Maltseva A.P., Svetlakova D.S.

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