Influence of hemodynamics and intra-operative hydration on biochemical outcome of renal transplant recipients

Navpreet Kaur Aulakh, Kamakshi Garg, Abhishek Bose, Baldev Singh Aulakh, Harmandeep Singh Chahal, Gurmehar Singh Aulakh, Navpreet Kaur Aulakh, Kamakshi Garg, Abhishek Bose, Baldev Singh Aulakh, Harmandeep Singh Chahal, Gurmehar Singh Aulakh

Abstract

Background and aims: Early graft function is crucial for successful kidney transplantation. The aim of our study was to evaluate the effect of intra-operative central venous pressure (CVP) and mean arterial pressure (MAP) on early graft function and biochemical outcome.

Material and methods: This was a retrospective study carried out on patients undergoing renal transplant only from live-related donors between March 2011 and May 2013. We mainly divided the patients into two groups based on CVP and mean MAP. One group had CVP more than 12 and other with CVP <12 mmHg at the time of declamping. Further one group was with mean MAP >100 mmHg and other with mean MAP of <100 mmHg. The graft outcome of genetically related and genetically unrelated donors was also evaluated in early postoperative period. The trend in fall of serum creatinine was studied during the first five post-operative days. The effect of age, dry weight, sex, relation with donor and intraoperative factors like MAP and CVP on early graft function were analysed. Correlation analysis, analysis of variance test (ANOVA) and multivariate analysis technique were used in this study for statistical computation.

Results: The mean CVP at the time of declamping was 13.91 mmHg. The minimum CVP was 6 mmHg in one patient who had ischemic heart disease with low ejection fraction. All 5 days mean serum creatinine values were comparable in two groups on 1(st), 2(nd), 3(rd) and 4(th) postoperative days. The mean MAP at the time of declamping was 111.22 mmHg. Mean MAP varied from a minimum of 95 mmHg to maximum of 131 mmHg. There was no significant difference in two groups on 1(st), 2(nd), 3(rd), 4(th) and 5(th) postoperative days.

Conclusion: A CVP around 12 mmHg and mean MAP >95 mmHg with good perioperative fluid hydration is associated with good early graft function.

Keywords: Central venous pressure; mean arterial pressure; renal transplant; serum creatinine.

Conflict of interest statement

Conflict of Interest: None declared.

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