NCT04596956

Brief Summary

Objectives

  1. 1.To observe whether sodium bicarbonate Ringer injections can reduce the incidence of postoperative complications in elderly patients undergoing abdominal surgery.
  2. 2.To observe the effects of sodium bicarbonate Ringer injections on the internal environment, such as water, electrolytes, acid-base balance, and other physiological indexes, in the perioperative period of elderly patients undergoing abdominal surgery.
  3. 3.Elderly abdominal surgery patients who meet the inclusion criteria will be enrolled and randomly divided into two groups according to the intraoperative application of extracellular fluid supplements. The experimental group is sodium bicarbonate Ringer injection group, and the control group is sodium lactate Ringer injection. Basic preoperative information of patients will be collected. The vital signs, fluid treatment, and surgical anaesthesia will be recorded during the operation, while the recovery and postoperative complications will be recorded during postoperative visits.
  4. 4.The ability of sodium bicarbonate Ringer injections to reduce postoperative complications in elderly patients undergoing abdominal surgery will be observed.
  5. 5.The effects of sodium bicarbonate Ringer injection on the internal environment, such as water, electrolytes, acid-base balance, and other physiological indexes in elderly patients undergoing abdominal surgery will be observed and compared.
  6. 6.The safety and efficacy of sodium bicarbonate Ringer injection in elderly patients with abdominal diseases will be comprehensively assessed.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
5,000

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Oct 2020

Longer than P75 for phase_4

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2020

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

October 12, 2020

Completed
10 days until next milestone

First Posted

Study publicly available on registry

October 22, 2020

Completed
4.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2025

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

October 22, 2020

Status Verified

October 1, 2020

Enrollment Period

4.8 years

First QC Date

October 12, 2020

Last Update Submit

October 15, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Complication rate (including death)

    Complications include: bleeding, infection (incision infection, blood infection, urinary system infection), gastrointestinal complications (postoperative intestinal obstruction, anastomotic leakage), pulmonary complications (pulmonary infection, pulmonary embolism) ), cardiovascular complications (cardiac arrest, arrhythmia, heart failure, myocardial infarction), neurological complications (delirium, stroke), urinary system complications (renal insufficiency), etc. (refer to International Surgical Prognosis Study, ISOS ), and died during hospitalization.

    30days

Study Arms (2)

sodium bicarbonate Ringer injection

EXPERIMENTAL
Drug: sodium bicarbonate Ringer injection

Ringer lactate solution

ACTIVE COMPARATOR
Drug: Lactated Ringer's solution

Interventions

Used in surgery

sodium bicarbonate Ringer injection

Used in surgery

Ringer lactate solution

Eligibility Criteria

Age65 Years+
Sexall
Healthy VolunteersNo
Age GroupsOlder Adult (65+)

You may qualify if:

  • (1) Patients need to be over 65 years of age, while there is no restriction on gender.
  • (2) Patients are planned to undergo upper abdominal surgery under general anaesthesia, with an expected operation time of \>2 h, and the infusion volume is \>1000ml.
  • (3) The patient agrees to participate in the clinical research and signs the informed consent.

You may not qualify if:

  • (1) Emergency surgery
  • (2) Hypermagnesemia (defined as serum Mg2+ \>1.25mmol/L)
  • (3) Patients who participated in other drug trials in the past 6 months
  • (4) Known allergic reactions to the test drug and/or its components
  • (5) Patients judged to lack the ability of providing informed consent
  • (6) Other situations considered unsuitable for enrollment by the researcher.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Interventions

Ringer's Lactate

Intervention Hierarchy (Ancestors)

Crystalloid SolutionsIsotonic SolutionsSolutionsPharmaceutical Preparations

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of the Center for Anesthesia

Study Record Dates

First Submitted

October 12, 2020

First Posted

October 22, 2020

Study Start

October 1, 2020

Primary Completion

August 1, 2025

Study Completion

December 1, 2025

Last Updated

October 22, 2020

Record last verified: 2020-10