REstrictive Versus LIbEral Fluid Therapy in Major Abdominal Surgery

Not Applicable

Completed

Conditions: Major Abdominal Surgery

Interventions: Procedure: Major Abdominal Surgery

Registration Number: NCT02073162

Lead Sponsor: The Cleveland Clinic

Brief Summary: Physicians differ in their approaches to surgical fluid therapy, with some preferring higher volumes and others lower volumes. Each approach has potential advantages and disadvantages. Currently, there is no compelling evidence that one approach is better than the other. This study tests whether giving a volume on the low end of the usual amount ("restrictive management") has a different rate of complications compared to a volume on the high end of the usual amount ("liberal management"). This study will compare liberal and restrictive fluid management to determine their effects on major complications after abdominal surgery.

Those who take part in the study will be visited five times before and after surgery in the hospital. Once discharged from the hospital, participants will be called 4 times on the telephone.

Preadmission Clinic/Preoperative Visit

* Sign the consent document

* Have blood drawn for standard preoperative tests (standard of care)

* Have an electrocardiogram (standard of care)

* Complete a questionnaire on disability (research)

Day of Surgery

* Have blood drawn if not already done during the first visit (standard of care)

* Have an electrocardiogram if not already done during the first visit (standard of care)

* Be randomly assigned to either restrictive or liberal fluid management (research)

Post-op Day 1

* Have an electrocardiogram done (research)

* Have blood drawn for standard tests (standard of care)

* Have a wound inspection, if there is a change of dressing (standard of care)

* Complete a questionnaire about your recovery (research)

Post-op Day 3

* Have blood drawn for standard tests (standard of care) and c-reactive protein, which can indicate infection (for research).

* Have a wound inspection, if there is a change of dressing (standard of care)

* Complete a questionnaire about your recovery (research)

Day of Discharge

* Have a wound inspection, if there is a change of dressing (standard of care)

30-Day Follow-up Phone Call

* Complete a questionnaire about your recovery (research)

* Complete a questionnaire about disability (research)

3 Month, 6-Month, and 12-Month Follow-up Phone Calls

* Complete a questionnaire about disability (research)

Detailed Description: Not available

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 3000

Inclusion Criteria

adults (≥18 years) undergoing elective major surgery and providing informed consent
all types of open or lap-assisted abdominal or pelvic surgery with an expected duration of at least 2 hours, and an expected hospital stay of at least 3 days (for example, oesophagectomy, gastrectomy, pancreatectomy, colectomy, aortic or aorto-femoral vascular surgery, nephrectomy, cystectomy, open prostatectomy, radical hysterectomy, and abdominal incisional hernia repair)
at increased risk of postoperative complications, defined as at least one of the following criteria:
age ≥70 years
known or documented history of coronary artery disease
known or documented history of heart failure
diabetes currently treated with an oral hypoglycaemic agent and/or insulin
preoperative serum creatinine >200 μmol/L (>2.8 mg/dl)
morbid obesity (BMI ≥35 kg/m2)
preoperative serum albumin <30 g/L
anaerobic threshold (if done) <12 mL/kg/min
or two or more of the following risk factors:
ASA 3 or 4
chronic respiratory disease
obesity (BMI 30-35 kg/m2)
aortic or peripheral vascular disease
preoperative haemoglobin <100 g/L
preoperative serum creatinine 150-199 μmol/L (>1.7 mg/dl)
anaerobic threshold (if done) 12-14 mL/kg/min

Exclusion Criteria

urgent or time-critical surgery
ASA physical status 5 - such patients are not expected to survive with or without surgery, and their underlying illness is expected to have an overwhelming effect on outcome (irrespective of fluid therapy)
chronic renal failure requiring dialysis
pulmonary or cardiac surgery - different pathophysiology, and thoracic surgery typically have strict fluid restrictions
liver resection - most units have strict fluid/CVP limits in place and won't allow randomisation
minor or intermediate surgery, such as laparoscopic cholecystectomy, transurethral resection of the prostate, inguinal hernia repair, splenectomy, closure of colostomy - each of these are typically "minor" surgery with minimal IV fluid requirements, generally low rates of complications and mostly very good survival.

Study & Design

Study Type: INTERVENTIONAL

Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Liberal group	Major Abdominal Surgery	At induction-Hartmanns 10 ml/kg During surgery-Hartmanns 8 ml/kg/h After surgery-IV fluids ≥1.5 ml/kg/h Continue IV fluids ≥24hrs
Restrictive group	Major Abdominal Surgery	At induction-Hartmanns ≤5 ml/kg During surgery-Hartmanns 5 ml/kg/h After surgery-IV fluids, ≤0.8 ml/kg/h Cease IV fluids ASAP,aim for early oral fluids

Primary Outcome Measures

Name	Time	Method
Number of Participants With Disability-free Survival	1 year	Disability was defined as a persistent impairment in health status (lasting ≥6 months), as measured by a score of at least 24 points on the WHODAS questionnaire, which reflects a disability level of at least 25% (the threshold point between "disabled" and "not disabled").

Secondary Outcome Measures

Name	Time	Method
Number of Participants With a Composite of Mortality or Major Septic Complications	30-day
Number of Participants With Anastomotic Leak	Indexed hospital stay
Number of Participants With Pulmonary Edema	Indexed hospital stay
Number of Participants With Surgical-site Infection	Indexed hospital stay
Number of Participants With Unplanned Admission to ICU	30 day
Number of Participants With Pneumonia	Indexed hospital stay
Number of Participants With Acute Kidney Injury	90 days
Number of Participants Undergoing Renal-replacement Therapy	Indexed hospital stay
Number of Participants With Sepsis	Indexed hospital stay
Death	12 month