About this trial
During hepatectomy, surgeons often prefer to restrict fluid intake, believing that this can lower central venous pressure (CVP) and reduce intraoperative blood loss. However, fluid restriction may lead to inadequate perfusion of vital organs and even contribute to postoperative organ dysfunction, such as acute kidney injury (AKI). Therefore, this study aims to compare the effects of restrictive versus liberal fluid therapy on major complications following hepatectomy.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
scheduled for elective hepatectomy under general anesthesia
age ≥18 yrs old
Disqualifiers
American society of anesthesiologists status over 3
existed kidney disease or renal dysfunction
severe cardiac or respiratory dysfunction
neurological or psychiatric disease
Trial design
Parallel
Treatments tested in this trial
restrictive fluid infusion
Other interventionFluid infusion is restricted at 2 ml·kg- 1·h- 1 from the moment the patient arrive in the operating room to immediately after the liver lesions are removed
preload
Other intervention6 ml·kg- 1·h- 1 of hydroxyethyl starch solution is infused before anesthesia
nitro
Other interventionNitroglycerin is infused from start of anesthesia to immediately after the liver lesions are removed.The starting infusion rates of nitroglycerin is 0.5 μg·kg- 1·min- 1 . If the speed of administration requires adjustment, nitroglycerin is added or decreased by 0.1 μg·kg- 1·min- 1.
Treatment groups
Trial outcomes
Primary outcomes
incidence of acute kidney injury
Postoperative acute kidney injury (AKI) was diagnosed and staged according to the Kidney Disease: Improving Global Outcomes (KDIGO) Clinical Practice Guideline for Acute Kidney Injury (2012). AKI was defined as the presence of any of the following criteria within 7 days after surgery: an increase in serum creatinine by ≥ 0.3 mg/dL (≥ 26.5 μmol/L) within 48 hours; an increase in serum creatinine to ≥ 1.5 times baseline, which is known or presumed to have occurred within the prior 7 days; or urine volume \< 0.5 mL/kg/h for 6 consecutive hours. Baseline serum creatinine was defined as the most recent preoperative value available within 3 months prior to surgery.
Secondary outcomes
Severity of acute kidney injury
AKI severity was further classified into three stages: stage 1 was defined as serum creatinine 1.5-1.9 times baseline or an increase of ≥ 0.3 mg/dL (≥ 26.5 μmol/L), or urine output \< 0.5 mL/kg/h for 6-12 hours; stage 2 as serum creatinine 2.0-2.9 times baseline, or urine output \< 0.5 mL/kg/h for ≥ 12 hours; and stage 3 as serum creatinine 3.0 times baseline, or an increase in serum creatinine to ≥ 4.0 mg/dL (≥ 353.6 μmol/L), or initiation of renal replacement therapy, or urine output \< 0.3 mL/kg/h for ≥ 24 hours, or anuria for ≥ 12 hours
number of patients with post-hepatectomy liver failure
number of patients with major cardiac complications
heart failure, myocardial ischemia and new on-set arrythmia
volume of blood loss
The method for calculating blood loss is the volume in the suction canister plus the estimated amount of blood on the gauze
Locations
Sponsors and contacts
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Zhihong LU
Lead sponsor
Air Force Military Medical University, China
Sponsor institution
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