Desflurane,Brain Natriuretic Peptide and Cardiac Surgery

January 20, 2020 updated by: Ayse Baysal, Kartal Kosuyolu Yuksek Ihtisas Education and Research Hospital

An Investigation of the Association Between Desflurane Inhalational Agent, Serum Brain Natriuretic Peptide (BNP) Levels and Clinical Outcomes During Coronary Artery Bypass Graft (CABG) Surgery

During coronary artery bypass grafting (CABG) operations with cardiopulmonary bypass (CPB), the use of desflurane continuously or intermittently may have effects on serum brain natriuretic peptide (BNP) levels. The aim is to investigate the association between desflurane, serum BNP values, and clinical outcomes during CABG operations. In a prospective, randomized, double-blinded study, desflurane inhalational anesthesia was administered either continuously or intermittently (Group 1; n=60 versus Group 2; n=62). The preoperative and postoperative BNP levels at 24, 48 and 72 hours after surgery were collected. Outcomes were recorded.

Study Overview

Detailed Description

Background: During coronary artery bypass grafting (CABG) operations with cardiopulmonary bypass (CPB), the use of desflurane continuously or intermittently may have effects on serum brain natriuretic peptide (BNP) levels.

Aim of the study: The aim is to investigate the association between desflurane, serum BNP values, and clinical outcomes during CABG operations.

Material and methods: In a prospective, randomized, double-blinded study, desflurane inhalational anesthesia was administered either continuously or intermittently (Group 1; n=60 versus Group 2; n=62). The preoperative and postoperative BNP levels at 24, 48 and 72 hours after surgery were collected. Outcomes were recorded. Randomization into two groups was performed using sealed envelopes. The sequentially numbered assignments of participants were concealed in these envelopes during the study. The patients enrolled in the study receive an allocation to a group after anesthesia induction by health care personnel after the opening of the envelope. The observers were blinded to the anesthetic protocol. Caregivers were not blinded, but they did not participate in data collection or data interpretation. Therefore, the study protocol is considered double-blinded, masked to observers. Inclusion criteria include; 18 to 75 years of age, body mass index of 25 to 31, ejection fraction≥50%. Exclusion criteria include; repeat cardiac surgery, emergent surgery, preoperative coagulation disorder, preoperative congestive heart failure, ejection fraction <49%, preoperative renal dysfunction (serum creatinine>1.3 mg/dL), dialysis, preoperative hepatic dysfunction (serum aspartate/alanine amino transferase>40 U/L), preoperative electrolyte imbalance, history of pancreatitis or current corticosteroid treatment.The primary endpoint was to determine preoperative and postoperative BNP values 24, 48 and 72 hours after surgery. The secondary endpoint was the relation between BNP values and clinical outcomes such as; 1-Aortic cross-clamp time, 2-Cardiopulmonary bypass time, 3-The use of inotropic support, 4-Intra-aortic balloon pump, 5-Duration of mechanical ventilation (>48 hours), 6-Development of pneumonia, 7-Perioperative myocardial infarction, 8-Cerebrovascular event (stroke or transient ischemic attack), seizure, 9-Atrial fibrillation and other rhythm disturbances, 10-Need for renal replacement therapy (RRT), 11-Reoperation secondary to bleeding, 12-Intensive care unit stay (>3 days), 13-Hospital stay and, 14-Thirty-day mortality.

Statistical analysis. The sample size was calculated according to the comparison of serum BNP values in a previous study and a sample size of 58 patients per group would be required with 80% power and the conventional 2-sided type 1 error of 5%. A multiple logistic regression analysis was performed to assess the predictive factors for weaning failure from mechanical ventilation, and the significance level was set at a p-value of less than 0.10 in the univariate model. To determine the best cut-off for preoperative BNP value to predict the development of prolonged mechanical ventilation, we calculated the area under the receiver operating characteristic curve.

Study Type

Interventional

Enrollment (Actual)

151

Phase

  • Not Applicable

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Eighteen to seventy-five years of age,
  • Body mass index values between twenty-five and thirty-one,
  • Ejection fraction greater than or equal to 50%.

Exclusion Criteria:

  • Repeat cardiac surgery,
  • Emergent surgery,
  • Preoperative coagulation disorder,
  • Preoperative congestive heart failure,
  • Ejection fraction less than 49%,
  • Preoperative renal dysfunction (serum creatinine value of greater than 1.3 mg/dL),
  • Dialysis,
  • Preoperative hepatic dysfunction (serum aspartate/alanine amino transferase values of greater than 40 U/L),
  • Preoperative electrolyte imbalance,
  • History of pancreatitis,
  • Current corticosteroid treatment.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Desflurane Continuous
In Group 1 of 60 patients, desflurane inhalational agent was administered continuously during coronary artery bypass graft surgery with cardiopulmonary bypass. Anesthesia induction was administered to all patients with intravenous midazolam at a dose of 0.2 mg/kg, fentanyl at a dose of 5 to 10 µg/kg and rocuronium bromide at a dose of 0.1 mg. For maintenance, in Group 1 patients, desflurane inhalational agent was administered at an end-tidal concentration of 1 to 4% during the whole surgical procedure and intravenous maintenance midazolam at a dose of 0.03 mg/kg and fentanyl at a dose of 1 to 2 µg/kg every half an hour. In Group 1 of patients, during the whole surgical procedure, attention to keep mean arterial pressure above 50 mmHg was provided.
Desflurane inhalational agent administration during the whole cardiac surgical operation with cardiopulmonary bypass versus administration of desflurane inhalational agent before and after cardiopulmonary bypass during the whole period of cardiac surgical operation.
Other Names:
  • Suprane
Active Comparator: Desflurane Intermittent
In Group 2 of 60 patients, desflurane inhalational agent was administered intermittently during coronary artery bypass graft surgery with cardiopulmonary bypass. Anesthesia induction was administered to all patients with intravenous midazolam at a dose of 0.2 mg/kg, fentanyl at a dose of 5 to 10 µg/kg and rocuronium bromide at a dose of 0.1 mg/kg. For maintenance, in Group 2 patients, desflurane inhalational agent was administered at an end-tidal concentration of 1 to 4% before and after the cardiopulmonary bypass procedure as intermittently with the addition of intravenous maintenance midazolam at a dose of 0.03 mg/kg and fentanyl at a dose of 1 to 2 µg/kg every half an hour. In Group 2 of patients, during the whole surgical procedure, attention to keep mean arterial pressure above 50 mmHg was provided.
Desflurane inhalational agent administration during the whole cardiac surgical operation with cardiopulmonary bypass versus administration of desflurane inhalational agent before and after cardiopulmonary bypass during the whole period of cardiac surgical operation.
Other Names:
  • Suprane

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Serum BNP values before the cardiac surgery
Time Frame: One day before cardiac surgery.
Serum BNP values were collected from a blood sample of each patient one day before cardiac surgery
One day before cardiac surgery.
Serum BNP values after the cardiac surgery at 24 hours
Time Frame: After operation at 24 hours after cardiac surgery.
Serum BNP values were collected from a blood sample of each patient after cardiac surgery
After operation at 24 hours after cardiac surgery.
Serum BNP values after the cardiac surgery at 48 hours
Time Frame: After operation at 48 hours after cardiac surgery.
Serum BNP values were collected from a blood sample of each patient after cardiac surgery
After operation at 48 hours after cardiac surgery.
Serum BNP values after the cardiac surgery at 72 hours
Time Frame: After operation at 72 hours after cardiac surgery.
Serum BNP values were collected from a blood sample of each patient after cardiac surgery
After operation at 72 hours after cardiac surgery.
Serum BNP values before and after the cardiac surgery
Time Frame: After collection of the data and during statistical analysis
The collected serum BNP values were compared with each other by repeated measure analysis
After collection of the data and during statistical analysis

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Outcome aortic cross-clamp time
Time Frame: During operative time period of cardiac surgery
A relation between serum BNP values and aortic cross-clamp time
During operative time period of cardiac surgery
Outcome cardiopulmonary bypass time
Time Frame: During operative time period of cardiac surgery
A relation between serum BNP values and cardiopulmonary bypass time
During operative time period of cardiac surgery
Outcome use of inotropic support
Time Frame: During operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and use of inotropic support
During operative time period of cardiac surgery and during intensive care unit stay
Outcome use of Intra-aortic balloon pump
Time Frame: During operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and use of Intra-aortic balloon pump
During operative time period of cardiac surgery and during intensive care unit stay
Outcome duration of mechanical ventilation (>48 hours)
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and duration of mechanical ventilation (>48 hours)
After operative time period of cardiac surgery and during intensive care unit stay
Outcome development of pneumonia
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and development of pneumonia
After operative time period of cardiac surgery and during intensive care unit stay
Outcome parameters
Time Frame: During operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and perioperative myocardial infarction
During operative time period of cardiac surgery and during intensive care unit stay
Outcome cerebrovascular event or seizure
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and cerebrovascular event (stroke or transient ischemic attack) or seizure
After operative time period of cardiac surgery and during intensive care unit stay
Outcome atrial rhythm disturbances
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and atrial fibrillation and other atrial rhythm disturbances
After operative time period of cardiac surgery and during intensive care unit stay
Outcome ventricular rhythm disturbances
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and ventricular rhythm disturbances
After operative time period of cardiac surgery and during intensive care unit stay
Outcome renal replacement therapy
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and need for renal replacement therapy (RRT)
After operative time period of cardiac surgery and during intensive care unit stay
Outcome reoperation
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and reoperation secondary to bleeding
After operative time period of cardiac surgery and during intensive care unit stay
Outcome intensive care unit stay
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and intensive care unit stay (>3 days)
After operative time period of cardiac surgery and during intensive care unit stay
Outcome hospital stay
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and intensive care unit stay (>3 days)
After operative time period of cardiac surgery and during intensive care unit stay
Outcome thirty-day mortality
Time Frame: After operative time period of cardiac surgery and during intensive care unit stay
A relation between serum BNP values and thirty-day mortality
After operative time period of cardiac surgery and during intensive care unit stay

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Director: Gonul Sagiroglu, MD, Trakya University, Faculty of Medicine, Edirne, Turkey

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 1, 2013

Primary Completion (Actual)

August 31, 2014

Study Completion (Actual)

September 30, 2014

Study Registration Dates

First Submitted

January 13, 2020

First Submitted That Met QC Criteria

January 20, 2020

First Posted (Actual)

January 23, 2020

Study Record Updates

Last Update Posted (Actual)

January 23, 2020

Last Update Submitted That Met QC Criteria

January 20, 2020

Last Verified

January 1, 2020

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

IPD sharing plan includes sharing of the Study Protocol, Statistical Analysis Plan, and Statistical Analysis of the study with researchers upon request via e-mail.

IPD Sharing Time Frame

The Study Protocol, the Clinical Study Report and the Statistical Analysis Plan are available after ClinicalTrials.gov registration.

IPD Sharing Access Criteria

Accessible to all researchers

IPD Sharing Supporting Information Type

  • Study Protocol
  • Statistical Analysis Plan (SAP)
  • Clinical Study Report (CSR)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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