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World J Gastroenterol. 2012 Dec 21;18(47):7033-9. doi: 10.3748/wjg.v18.i47.7033.

Major influence of renal function on hyperlipidemia after living donor liver transplantation.

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  • 1Key Lab of Combined Multi-Organ Transplantation, Key Lab of Organ Transplantation, Ministry of Public Health, Hangzhou 310003, Zhejiang Province, China.

Abstract

AIM:

To investigate the impact of renal and graft function on post-transplant hyperlipidemia (PTHL) in living donor liver transplantation (LDLT).

METHODS:

A total of 115 adult patients undergoing LDLT from January 2007 to May 2009 at a single center were enrolled. Data were collected and analyzed by the China Liver Transplant Registry retrospectively. PTHL was defined as serum triglycerides ≥ 150 mg/dL or serum cholesterol ≥ 200 mg/dL or the need for pharmacologic treatment at the sixth month after LDLT. Early renal dysfunction (ERD) was defined as serum creatinine ≥ 2 mg/dL and/or the need for renal replacement therapy in the first post-transplant week.

RESULTS:

In 115 eligible patients, the incidence of PTHL was 24.3%. Recipients with PTHL showed a higher incidence of post-transplant cardiovascular events compared to those without PTHL (17.9% vs 4.6%, P = 0.037). Serum creatinine showed significant positive correlations with total serum triglycerides, both at post-transplant month 1 and 3 (P < 0.01). Patients with ERD had much higher pre-transplant serum creatinine levels (P < 0.001) and longer duration of pre-transplant renal insufficiency (P < 0.001) than those without ERD. Pre-transplant serum creatinine, graft-to-recipient weight ratio, graft volume/standard liver volume ratio, body mass index (BMI) and ERD were identified as risk factors for PTHL by univariate analysis. Furthermore, ERD [odds ratio (OR) = 9.593, P < 0.001] and BMI (OR = 6.358, P = 0.002) were identified as independent risk factors for PTHL by multivariate analysis.

CONCLUSION:

Renal function is closely associated with the development of PTHL in LDLT. Post-transplant renal dysfunction, which mainly results from pre-transplant renal insufficiency, contributes to PTHL.

KEYWORDS:

Graft function; Hyperlipidemia; Liver transplantation; Prognosis; Renal insufficiency; Risk factors

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