Evaluation of Fluid Responsiveness With Pulse Variation Index and Systolic Blood Pressure Changes After Lung Recruitment Maneuver

Sponsor
Ankara City Hospital Bilkent (Other)
Overall Status
Recruiting
CT.gov ID
NCT04939129
Collaborator
(none)
84
1
6.5
12.8

Study Details

Study Description

Brief Summary

Evaluation of Fluid Responsiveness With Pulse Variation Index and Systolic Blood Pressure Changes After Lung Recruitment Maneuver

Condition or Disease Intervention/Treatment Phase
  • Diagnostic Test: The research is terminated by calculating the percentage of PVI changes with SAB formed by LRM after fluid challenge.

Detailed Description

After obtaining ethics committee approval, at least 84 patients who will undergo elective open abdominal surgery under general anesthesia in the operating room of the Ministry of Health Ankara City Hospital will be included in the study. The study is a single center, prospective, observational study.

Weight, height, age, gender, BMI (body mass index), ASA information of the patients will be recorded. Induction and anesthesia management will be applied in accordance with the standard working order of the anesthesia clinic. After the patient is taken to the operating table, non-invasive arterial blood pressure monitoring (noninvasive), 5-lead ECG and pulse oximetry, in addition to standard hemodynamic monitoring, Bispectral Index (BIS), temperature and Massimo ® pulse oximeter (Masimo Corp., Irvine, CA, USA). ) will be monitored. General anesthesia induction will be performed with 0.02 mg / kg midazolam, 1mg / kg lidocaine, 1mcg / kg fentanyl and 2mg / kg propofol after preoxygenation in accordance with the routine practice of the anesthesia clinic, and endotracheal intubation will be performed with a suitable tube for the patient to be provided with 0.6mg / kg rocuronium. BIS target value range will be determined as 40-60, and anesthesia maintenance will be provided by modifying the volatile anesthetic concentration and remifentanil infusion dose (0.1-1 mcg / kg / min) in accordance with hemodynamic values. Ventilation mode and ventilation parameters; tidal volume (6-8 ml / kg according to ideal body weight), respiratory rate (12-16) and end-tidal CO2 values in the range of 30-40 mmhg, inspiratory / expiratory ratio 1: 2, positive end expiratory pressure (PEEP) 5 cm H2O and FiO2: will be set as 50%. After the Allen test to be performed preoperatively, radial artery catheterization and invasive blood pressure monitoring of the non-dominant hand, a 7 fr three lumen central catheter will be placed into the right internal jugular vein with ultrasound (USG) and central venous pressure (CVP) monitoring will be performed. These applications are routinely performed in patients scheduled for open abdominal surgery in our clinic. Preferably 16G or 18G , 2 peripheral venous lines will be placed and fluid will not be given before fluid replacement. Measurements will begin after the patient preparation is complete, after a hemodynamically stable period (defined as the period in which the mean arterial blood pressure (MAP) change is <10% within 5 minutes), in the supine position, and when the patient is confirmed by a second observer that there is no spontaneous breathing effort. Hemodynamic parameters; heart rate (HR) (beats / minute), central venous pressure (CVP) (mmHg), systolic arterial blood pressure (SAP) (mmHg), diastolic arterial blood pressure (DAP) (mmHg), mean arterial blood pressure (MAP) ) (mmHg), peripheral oxygen saturation (SpO2), PVI and BIS baseline values (baseline 1) will be recorded. The LRM will be automatically adjusted in the mechanical ventilator to be at 30 cm H2O for 30 seconds, and the test will begin, all hemodynamic parameters, especially SAB and PVI, where the maximum change at the end of 30 seconds, will be recorded (after LRM), and the differences initial baseline values will be calculated and recorded as percentages. After the recording of the second values, the crystalloid infusion at 10 ml / kg will be made to the patient through the peripheral venous line within 15 minutes, 10 minutes after the end of the infusion, new baseline values will be taken before the test (baseline 2). After fluid replacement, LRM will be repeated in the same way. The values after LRM (Fluid Challenge-FC) will be recorded and differences between basal 2 values will be calculated and recorded as percentages. Primary measurement parameters are determined as PVI and SAB, and secondary measurement parameters are HR, DAB, OAB, SpO2, CVP and BIS. The research is terminated by calculating the percentage of PVI changes with SAB formed by LRM after fluid challenge.

Study Design

Study Type:
Observational
Anticipated Enrollment :
84 participants
Observational Model:
Cohort
Time Perspective:
Prospective
Official Title:
The Relationship Between The Change in Systolic Blood Pressure and The Pleth Variability Index (PVI) After The Lung Recruitment Maneuver (LRM) to Evaluate Fluid Responsiveness in Open Abdominal Surgeries
Actual Study Start Date :
Jun 15, 2021
Actual Primary Completion Date :
Jul 1, 2021
Anticipated Study Completion Date :
Dec 31, 2021

Outcome Measures

Primary Outcome Measures

  1. correlation between systolic blood pressure change after LRM and PVI in patients who will undergo elective open abdominal surgery under general anesthesia [first 30 minutes of general anesthesia]

    In this study, the presence of a correlation between systolic blood pressure change after LRM and PVI in patients who will undergo elective open abdominal surgery under general anesthesia, the systolic pressure change in LRM is a non-invasive test that can be used to predict fluid responsiveness. We aim to reduce the invasive procedures required for the measurement of cardiac output used in the evaluation and to develop an alternative method to the use of expensive and not always accessible devices required for measurements.

Eligibility Criteria

Criteria

Ages Eligible for Study:
18 Years to 75 Years
Sexes Eligible for Study:
All
Accepts Healthy Volunteers:
No
Inclusion Criteria:
  • ASA physical status 1 to 3 patients, over 18 years of age who will undergo elective open abdominal surgery under general anesthesia
Exclusion Criteria:
  • being over 75 years old, pregnant, who are contraindicated to use anesthetic drugs, BMI <18 and BMI> 40, who used inotropes or vasopressor drugs before or during the operation, with preoperative lung disease, with left ventricular ejection fraction less than 30%, with suspected right ventricular dysfunction (due to chronic obstructive pulmonary disease (COPD) or obstructive sleep apnea syndrome (OSAS)), with moderate to severe valvular disease, with hemodynamic instability in the perioperative period, with severe peripheral vascular occlusion, with liver failure, with renal insufficiency, with intracranial hypertension and with pulmonary hypertension.

Contacts and Locations

Locations

Site City State Country Postal Code
1 Ankara City Hospital Ankara Turkey

Sponsors and Collaborators

  • Ankara City Hospital Bilkent

Investigators

  • Principal Investigator: Oya Kılcı, MD, Ankara City Hospital Bilkent

Study Documents (Full-Text)

None provided.

More Information

Publications

Responsible Party:
Ankara City Hospital Bilkent
ClinicalTrials.gov Identifier:
NCT04939129
Other Study ID Numbers:
  • E2-21-468
First Posted:
Jun 25, 2021
Last Update Posted:
Aug 3, 2021
Last Verified:
Jun 1, 2021
Individual Participant Data (IPD) Sharing Statement:
Undecided
Plan to Share IPD:
Undecided
Studies a U.S. FDA-regulated Drug Product:
No
Studies a U.S. FDA-regulated Device Product:
No
Keywords provided by Ankara City Hospital Bilkent
Additional relevant MeSH terms:

Study Results

No Results Posted as of Aug 3, 2021