CVP and SVV During Living Donor Hepatectomy Clinical Trial
Official title:
Vasodilator-induced Hypovolemia in Living Liver Donors: Central Venous Pressure-guided vs Stroke Volume Variation-guided Technique
Induced hypovolemia is known to improve surgical field during living donor hepatectomy. This procedure is conventionally guided by monitoring the central venous pressure (CVP). Stroke volume variation (SVV) is a novel method to substitute with CVP to monitor cardiac preload. The investigators try to evaluate the relationship between CVP and SVV during CVP-guided vasodilator induced hypovolemia (validation study). Then, feasibility of vasodilator induced hypovolemia using the SVV calculated from the validation study will be tested (feasibility study).
This is a 2-phases study.
first phase validation study : Evaluation of the relationship between CVP and SVV during
CVP-guided vasodilator induced hypovolemia
second phase feasibility study
: Comparison of the surgical field grade between validation study group(CVP guided group)
and feasibility study group(SVV guided group)
;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment