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KMID : 0191120140290050640
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Journal of Korean Medical Science
2014 Volume.29 No. 5 p.640 ~ p.647
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Preoperative Selective Desensitization of Live Donor Liver Transplant Recipients Considering the Degree of T Lymphocyte Cross-Match Titer, Model for End-Stage Liver Disease Score, and Graft Liver Volume
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Hong Geun
Yi Nam-Joon
Suh Suk-Won
Yoo Tae
Kim Hye-Young
Park Min-Su
Choi Young-Rok
Lee Kyung-Bun
Lee Kwang-Woong
Park Myoung-Hee
Suh Kyung-Suk
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Abstract
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Several studies have suggested that a positive lymphocyte cross-matching (XM) is associated with low graft survival rates and a high prevalence of acute rejection after adult living donor liver transplantations (ALDLTs) using a small-for-size graft. However, there is still no consensus on preoperative desensitization. We adopted the desensitization protocol from ABO-incompatible LDLT. We performed desensitization for the selected patients according to the degree of T lymphocyte cross-match titer, model for end-stage liver disease (MELD) score, and graft liver volume. We retrospectively evaluated 230 consecutive ALDLT recipients for 5 yr. Eleven recipients (4.8%) showed a positive XM. Among them, five patients with the high titer (> 1:16) by antihuman globulin-augmented method (T-AHG) and one with a low titer but a high MELD score of 36 were selected for desensitization: rituximab injection and plasmapheresis before the transplantation. There were no major side effects of desensitization. Four of the patients showed successful depletion of the T-AHG titer. There was no mortality and hyperacute rejection in lymphocyte XM-positive patients, showing no significant difference in survival outcome between two groups (P=1.000). In conclusion, this desensitization protocol for the selected recipients considering the degree of T lymphocyte cross-match titer, MELD score, and graft liver volume is feasible and safe.
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KEYWORD
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Blood Grouping and Crossmatching, Desensitization, Graft Rejection, Living Donors, Liver Transplantation
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