Goal-directed Intraoperative Fluid Therapy in High-risk Surgery

Effect of Goal-Directed Intraoperative Fluid Therapy on Outcomes Following Laparotomy of Gynecological Malignancies and Orthopedic Surgery

This study is aim to assess the effect of goal-directed intraoperative fluid therapy on patient's postoperative incidence rates of complications, length of hospitalization and hospitalization cost.

This is an observational study followed cohort study design, due to the two therapies were not randomized assigned to the two cohorts. The details are described as follow.

Study Overview

• Status: Completed
• Conditions: Postoperative Complications; Fluid Overload
• Intervention / Treatment: Other: Applying goal-directed fluid therapy by continuous hemodynamic monitoring system; Other: Conventional fluid therapy

Detailed Description

The study will be conducted in patients undergoing either elective laparotomy of gynecological malignancies or elective major orthopaedic surgery under prone position in Peking Union Medical College Hospital. The study included two stages.

In the first stage, one cohort of 300 participants with conventional fluid therapy will be involved, in which 150 patients will be selected with laparotomy of gynecological malignancies and150 patients will be selected with orthopedic surgery. All the participants in this stage will follow conventional fluid therapy to direct the amount of intraoperative fluid. Specifically, the fluid will be administered based on the principle crystalloid solution (colloid solution =2-3:1). The total volume of fluid will be adjusted in accordance with blood pressure, heart rate and urine output of each patient. It is a standard procedure in Peking Union Medical College Hospital. Then, the incidence of postoperative complications of each group will be recorded. In addition, sample size will be estimated based on above study's results (estimated 100 participants).

In the second stage, goal-directed therapy will be applied to another cohort of 300 participants, in which 150 patients undergoing laparotomy of gynecological malignancies and 150 patients undergoing orthopedic surgery. Specifically, the fluid will be administered based upon real-time monitoring stroke volume variation and cardiac output achieved by the Flo-Trac monitoring system. The incidence of postoperative complications of each group will be recorded.

• Study Type: Observational
• Enrollment (Actual): 600

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 90 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Patients underwent either laparotomy of gynecological malignancies or orthopedic surgery

Description

Inclusion Criteria:

1. Receiving elective laparotomy of gynecological malignancies (LGM): including cytoreductive surgery of ovarian cancer, radical hysterectomy and staging surgery of endometrial cancer ;
2. Major elective orthopedic surgery (OS): including spinal surgery, revision surgery of hip joints ;
3. Age ≥18 years, American Society of Anesthesiologists physical status I ～IV;
4. No arrhythmia;
5. Receiving general anesthesia;
6. Requiring monitoring of direct blood pressure due to the comorbidities of patients and the nature of surgical procedures.

Exclusion Criteria:

1. Emergent surgery;
2. Patients with aortic regurgitation;
3. Patients with aortic stenosis, peripheral arterial diseases or other diseases contradicting to arterial canalizations;
4. Patients with mental disorders or low intelligence quotient; patients who cannot cooperate or refuse to sign the consent.

Study Plan

How is the study designed?

Number of groups / cohorts

2

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
Goal-directed fluid therapy; The fluid in group Goal-directed fluid therapy will be administered based upon real-time monitoring stroke volume variation and cardiac output achieved by the Flo-Trac monitoring system.	Other: Applying goal-directed fluid therapy by continuous hemodynamic monitoring system; Applying continuous hemodynamic monitoring system ( Vigileo/Flotrac) to monitor Stroke Volume Variation and Cardiac Output and further manage intra-operative fluid therapy.
Conventional fluid therapy; The fluid in group Conventional fluid therapy will be administered based on the principle crystalloid solution: colloid solution =2-3:1. The total volume of fluid will be adjusted in accordance with blood pressure, heart rate and urine output of each patient.	Other: Conventional fluid therapy; Applying conventional fluid therapy according to Peking Union Medical College Hospital standard.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
postoperative complications	the incidence of complications related to surgeries 30 days postoperatively. The complications include pneumonia, pulmonary embolism, cardiovascular events (myocardial infarction, heart failure), wound infection, gastrointestinal bleeding,nausea and vomitting，postoperative hemorrhage, ileus, deep venous thrombosis, cerebral infarction, cerebral embolism, cerebral hemorrhage, renal insufficiency and failure. Those complications are defined strictly to the reference published in 2009 New England Journal of Medicine （N Engl J Med. 2009 Oct 1;361:1368-75）	30 days after the surgery

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
hospital length of stay	the length of stay in hospital，from the hospitalized date to the leave date	participants will be followed for the duration of hospital stay, an expected average of 10 days
hospital expenses	total cost in hospital	30 days after the surgery

Collaborators and Investigators

• Sponsor: Huang YuGuang
• Investigators: Study Chair: Yuguang Huang, MD, Peking Union Medical College Hospital

Publications and helpful links

General Publications

• Ramsingh DS, Sanghvi C, Gamboa J, Cannesson M, Applegate RL 2nd. Outcome impact of goal directed fluid therapy during high risk abdominal surgery in low to moderate risk patients: a randomized controlled trial. J Clin Monit Comput. 2013 Jun;27(3):249-57. doi: 10.1007/s10877-012-9422-5. Epub 2012 Dec 22.
• Donati A, Loggi S, Preiser JC, Orsetti G, Munch C, Gabbanelli V, Pelaia P, Pietropaoli P. Goal-directed intraoperative therapy reduces morbidity and length of hospital stay in high-risk surgical patients. Chest. 2007 Dec;132(6):1817-24. doi: 10.1378/chest.07-0621. Epub 2007 Oct 9.
• Cecconi M, Fasano N, Langiano N, Divella M, Costa MG, Rhodes A, Della Rocca G. Goal-directed haemodynamic therapy during elective total hip arthroplasty under regional anaesthesia. Crit Care. 2011;15(3):R132. doi: 10.1186/cc10246. Epub 2011 May 30.
• Kuper M, Gold SJ, Callow C, Quraishi T, King S, Mulreany A, Bianchi M, Conway DH. Intraoperative fluid management guided by oesophageal Doppler monitoring. BMJ. 2011 May 24;342:d3016. doi: 10.1136/bmj.d3016.
• Wang P, Wang HW, Zhong TD. Effect of stroke volume variability- guided intraoperative fluid restriction on gastrointestinal functional recovery. Hepatogastroenterology. 2012 Nov-Dec;59(120):2457-60. doi: 10.5754/hge12283.
• Che L, Zhang XH, Li X, Zhang YL, Xu L, Huang YG. Outcome impact of individualized fluid management during spine surgery: a before-after prospective comparison study. BMC Anesthesiol. 2020 Jul 22;20(1):181. doi: 10.1186/s12871-020-01092-w.

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2016
• Primary Completion (Actual): February 10, 2018
• Study Completion (Actual): July 1, 2018

Study Registration Dates

• First Submitted: May 28, 2015
• First Submitted That Met QC Criteria: June 9, 2015
• First Posted (Estimate): June 12, 2015

Study Record Updates

• Last Update Posted (Actual): May 31, 2019
• Last Update Submitted That Met QC Criteria: May 29, 2019
• Last Verified: May 1, 2019

More Information

Terms related to this study

• Keywords: postoperative complications; goal-directed fluid therapy; intraoperative hemodynamics
• Additional Relevant MeSH Terms: Pathologic Processes; Postoperative Complications
• Other Study ID Numbers: anesthesiologyPUMCH001