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Ventilator-Induced Lung InjuryNCT05434624

QT Distance and P Dispersion in ECG in Patients Having Bronchoscopy in the ICU

A study testing Midazolam and Propofol in people with Ventilator-Induced Lung Injury and Pulmonary Atelectasis, run by Abant Izzet Baysal University at 1 site in Turkey (Türkiye).

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Fiberoptic bronchoscopy (FOB) is one of the most useful procedures for diagnosing and treating respiratory illnesses to figure out symptoms like hemoptysis, wheezing, or cough. Furthermore, FOB is a frequent method, in intensive care units, for both diagnoses of ventilator-associated pneumonia (VAP) and treatment of… Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Midazolam and Propofol
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteTurkey (Türkiye)
Study dates
25 Jun 2022to 25 Mar 2024
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • All intubated patients over 18 years of age

Who cannot join

  • Patients under the age of 18
  • Pregnancy
  • Patients using sedative drugs in the last 24 hours
  • Hypersensitivity to the drugs used in the study
  • Severe cardiac disorder (EF: < 40)
  • Patients using drugs that increase the QT interval (quinidine, lithium, procainamide, amiodarone, sotalol, phenothiazine, tricyclic antidepressants, disopyramide) or reduce the QT interval (digitals)
  • Patients who have hypomagnesemia- hypocalcemia - hypo or hyperthermia - hypo or hypercalcemia - hyperkalemia - hyper or hypothyroidism - myocarditis - mitral heart prolapsus

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Abant izzet baysal university

    Bolu, 14030

Other trials in Turkey (Türkiye)

About this study

Official title: The Effect of Bispectral Index Controlled Sedation on QT Distance and P Dispersion in ECG in Patients Having Bronchoscopy in the Intensive Care Unit

Fiberoptic bronchoscopy (FOB) is one of the most useful procedures for diagnosing and treating respiratory illnesses to figure out symptoms like hemoptysis, wheezing, or cough. Furthermore, FOB is a frequent method, in intensive care units, for both diagnoses of ventilator-associated pneumonia (VAP) and treatment of atelectasis with bedside sedation.) Propofol is often used in anesthesia for endoscopic treatments. Using propofol for deep anesthesia may be indicated to prevent the patient from feeling discomfort before FOB and to reduce the chance of complications.

Although major complications of FOB such as hypoxia and pneumothorax are known, there are limited studies showing its effects on cardiac hemodynamics. The cardiac effects of laryngoscope and intubation were investigated by using different anesthetic agents. In this study, we evaluated the effect of bronchoscopy with BIS-controlled sedation on ECG in ICU patients by monitoring the QT interval and P interval.

Read the detailed description

For this study, it was planned to recruit 40 patients who would have FOB in the ICU of Abant İzzet Baysal University Anesthesia department. All intubated patients over 18 years of age who do not meet the exclusion criteria will be included. Before the procedure, all patients were given i.v. 0:02 - 0:04 mg / kg midazolam (zolamide 15 mg / 3 mL, and medications, Turkey) will be administered. Volume-controlled ventilation modes will be preferred during FOB. The pre-trade-inspired FiO2 will be increased to 100%. During the procedure, mean blood pressure, heart rate, oxygen saturation, respiratory rate, CVP, airway pressure, and BIS will be closely monitored. Enteral feeding will be discontinued at least 6 hours before the procedure. At the end of the procedure, the endotracheal tube position will be checked.

FOB will be performed using mobile bronchoscopy (Storz FB; 5.0 mm outer diameter). All patients will be monitored with BIS (Bispectral Index A-2000, Aspect Medical Systems, Netherlands) to measure the depth of sedation. Patients will be randomly divided into two groups by an anesthesiologist blinded to the study. Propofol will not be given to Group I after midazolam, while propofol 0.5 mg/kg bolus dose will be administered to Group II. Maintenance will be provided with 60 mcg/kg/min propofol infusion, and the propofol infusion dose will be increased by 10 mcg/kg/min by titration until the BIS value is 40-60 during the procedure. Patients under the age of 18, pregnancy, using sedative drugs in the last 24 hours, hypersensitivity to the drugs used in the study, severe cardiac disorder (EF: < 40), those who increase the QT interval (quinidine, lithium, procainamide, amiodarone, sotalol, phenothiazine, tricyclic Those who use antidepressants, disopyramide) or reducing (digitals) drugs, affecting QT such as hypomagnesemia- hypocalcemia - hypo or hyperthermia - hypo or hypercalcemia - hyperkalemia - hyper or hypothyroidism - myocarditis - mitral heart prolapse, etc. will be excluded from the study.

Patients will be randomly divided into 2 equal groups using the closed envelope method. Oral and written consent will be obtained from the first-degree relatives of all patients. All patients will be monitored with BIS to measure the depth of sedation. Age, weight - height, gender, medications used, comorbidities, hospitalization diagnosis, and duration of the procedure will be recorded for both groups. In addition, systolic blood pressure, diastolic blood pressure, mean blood pressure, heart rate, SpO2, BIS, respiratory rate, CVP, and airway pressure will be noted before and after the procedure of the first, fifth, tenth, and fifteenth minute. P wave dispersion, OTc, and OTd values will be calculated according to the max and min wavelengths as the primary outcomes.

Being tested
Midazolam, Propofol
Medical subject headings
Ventilator-Induced Lung Injury, Pulmonary Atelectasis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MidazolamDrug

    Also called Zolamid

    Before the procedure, all patients were given i.v. 0:02 - 0:04 mg / kg midazolam (zolamide 15 mg / 3 mL, and medications, Turkey) will be administered.

  • PropofolDrug

    Also called Dormofol

    Propofol 0.5 mg/kg bolus dose will be administered to Group II. Maintenance will be provided with 60 mcg/kg/min propofol infusion, and the propofol infusion dose will be increased by 10 mcg/kg/min by titration until the BIS value is 40-60 during the procedure.

Study groups in NCT05434624
Study groupRoleWhat they receive
Group MExperimentalBronchoscopy group in which only midazolam will be used
Receives: Drug: Midazolam
Group PExperimentalBronchoscopy group in which midazolam and propofol will be used
Receives: Drug: Propofol

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. P wave dispersion (PWD)

    PWD in all leads will be measured manually with the X10 magnifying glass. The beginning of the P wave is the point where the isoelectric line and the P wave intersect. The endpoint was taken as the intersection of the isoelectric line and the end point of the P wave.ECG recordings of at least 6 QRS for each lead

    1 mV at a rate of 20 mm/s, including the complex 3 channels in amplitude and standard 12 leads will be done simultaneously.

    Measured: Before the procedure

  2. P wave dispersion (PWD)

    PWD in all leads will be measured manually with the X10 magnifying glass. The beginning of the P wave is the point where the isoelectric line and the P wave intersect. The endpoint was taken as the intersection of the isoelectric line and the end point of the P wave.ECG recordings of at least 6 QRS for each lead 1 mV at a rate of 20 mm/s, including the complex 3 channels in amplitude and standard 12 leads will be done simultaneously.

    Measured: After the procedure of the first minute

  3. P wave dispersion (PWD)

    PWD in all leads will be measured manually with the X10 magnifying glass. The beginning of the P wave is the point where the isoelectric line and the P wave intersect. The endpoint was taken as the intersection of the isoelectric line and the end point of the P wave.ECG recordings of at least 6 QRS for each lead 1 mV at a rate of 20 mm/s, including the complex 3 channels in amplitude and standard 12 leads will be done simultaneously.

    Measured: After the procedure of the fifth minute

  4. P wave dispersion (PWD)

    PWD in all leads will be measured manually with the X10 magnifying glass. The beginning of the P wave is the point where the isoelectric line and the P wave intersect. The endpoint was taken as the intersection of the isoelectric line and the end point of the P wave.ECG recordings of at least 6 QRS for each lead 1 mV at a rate of 20 mm/s, including the complex 3 channels in amplitude and standard 12 leads will be done simultaneously.

    Measured: After the procedure of the tenth minute

  5. P wave dispersion (PWD)

    PWD in all leads will be measured manually with the X10 magnifying glass. The beginning of the P wave is the point where the isoelectric line and the P wave intersect. The endpoint was taken as the intersection of the isoelectric line and the end point of the P wave.ECG recordings of at least 6 QRS for each lead 1 mV at a rate of 20 mm/s, including the complex 3 channels in amplitude and standard 12 leads will be done simultaneously.

    Measured: After the procedure of the fifteenth minute

  6. QTc (Corrected QT interval) and QTd (QT dispersion) values

    The onset of the QRS complex and the descending T wave as the QT interval between the point where the arm cuts the isoelectric TP segment will be taken. QT dispersion (QTd) is the difference between the longest QT and the shortest QT interval. The heart rate-corrected value of the measurement of the QT interval will be used as the QTc. QTc > 500 ms means increased.

    Measured: Before the procedure

  7. QTc (Corrected QT interval) and QTd (QT dispersion) values

    The onset of the QRS complex and the descending T wave as the QT interval between the point where the arm cuts the isoelectric TP segment will be taken. QT dispersion (QTd) is the difference between the longest QT and the shortest QT interval. The heart rate-corrected value of the measurement of the QT interval will be used as the QTc. QTc > 500 ms means increased.

    Measured: After the procedure of the first minute

  8. QTc (Corrected QT interval) and QTd (QT dispersion) values

    The onset of the QRS complex and the descending T wave as the QT interval between the point where the arm cuts the isoelectric TP segment will be taken. QT dispersion (QTd) is the difference between the longest QT and the shortest QT interval. The heart rate-corrected value of the measurement of the QT interval will be used as the QTc. QTc > 500 ms means increased.

    Measured: After the procedure of the fifth minute

  9. QTc (Corrected QT interval) and QTd (QT dispersion) values

    The onset of the QRS complex and the descending T wave as the QT interval between the point where the arm cuts the isoelectric TP segment will be taken. QT dispersion (QTd) is the difference between the longest QT and the shortest QT interval. The heart rate-corrected value of the measurement of the QT interval will be used as the QTc. QTc > 500 ms means increased.

    Measured: After the procedure of the tenth minute

  10. QTc (Corrected QT interval) and QTd (QT dispersion) values

    The onset of the QRS complex and the descending T wave as the QT interval between the point where the arm cuts the isoelectric TP segment will be taken. QT dispersion (QTd) is the difference between the longest QT and the shortest QT interval. The heart rate-corrected value of the measurement of the QT interval will be used as the QTc. QTc > 500 ms means increased.

    Measured: After the procedure of the fifteenth minute

Secondary outcomes (42)
  1. Hospitalization

    The diagnosis of all patients will be noted on the first day of the ICU.

    Measured: Before the procedure

  2. Bronchoscopy duration

    The duration of the procedure will be noted from the beginning of the bronchoscopy till the end of it.

    Measured: At the end of the procedure

  3. Systolic blood pressure (SBP)

    SBP will be measured from the monitor.

    Measured: Before the procedure

  4. Systolic blood pressure (SBP)

    SBP will be measured from the monitor.

    Measured: After the procedure of the first minute

  5. Systolic blood pressure (SBP)

    SBP will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  6. Systolic blood pressure (SBP)

    SBP will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  7. Systolic blood pressure (SBP)

    SBP will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

  8. Diastolic blood pressure (DBP)

    DBP will be measured from the monitor.

    Measured: Before the procedure

  9. Diastolic blood pressure (DBP)

    DBP will be measured from the monitor.

    Measured: After the procedure of the first minute

  10. Diastolic blood pressure (DBP)

    DBP will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  11. Diastolic blood pressure (DBP)

    DBP will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  12. Diastolic blood pressure (DBP)

    DBP will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

  13. Mean arterial pressure (MAP)

    The MAP is the average of the systolic pressure and the diastolic pressure that is formulized as MAP = (SBP + [2x DBP]) / 3.

    Measured: Before the procedure

  14. Mean arterial pressure (MAP)

    The MAP is the average of the systolic pressure and the diastolic pressure that is formulized as MAP = (SBP + [2x DBP]) / 3.

    Measured: After the procedure of the first minute

  15. Mean arterial pressure (MAP)

    The MAP is the average of the systolic pressure and the diastolic pressure that is formulized as MAP = (SBP + [2x DBP]) / 3.

    Measured: After the procedure of the fifth minute

  16. Mean arterial pressure (MAP)

    The MAP is the average of the systolic pressure and the diastolic pressure that formulized as MAP = (SBP + [2x DBP]) / 3.

    Measured: After the procedure of the tenth minute

  17. Mean arterial pressure (MAP)

    The MAP is the average of the systolic pressure and the diastolic pressure that is formulized as MAP = (SBP + [2x DBP]) / 3.

    Measured: After the procedure of the fifteenth minute

  18. Heart rate (HR)

    The HR value will be measured from the monitor.

    Measured: Before the procedure

  19. Heart rate (HR)

    The HR value will be measured from the monitor.

    Measured: After the procedure of the first minute

  20. Heart rate (HR)

    The HR value will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  21. Heart rate (HR)

    The HR value will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  22. Heart rate (HR)

    The HR value will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

  23. Central venous pressure (CVP)

    The CVP value will be measured from the monitor.

    Measured: Before the procedure

  24. Central venous pressure (CVP)

    The CVP value will be measured from the monitor.

    Measured: After the procedure of the first minute

  25. Central venous pressure (CVP)

    The CVP value will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  26. Central venous pressure (CVP)

    The CVP value will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  27. Central venous pressure (CVP)

    The CVP value will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

  28. Peripheral oxygen saturation

    This will be measured from the monitor.

    Measured: Before the procedure

  29. Peripheral oxygen saturation

    This will be measured from the monitor.

    Measured: After the procedure of the first minute

  30. Peripheral oxygen saturation

    This will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  31. Peripheral oxygen saturation

    This will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  32. Peripheral oxygen saturation

    This will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

  33. Airway pressure (P Peak)

    This will be measured from the monitor.

    Measured: Before the procedure

  34. Airway pressure (P Peak)

    This will be measured from the monitor.

    Measured: After the procedure of the first minute

  35. Airway pressure (P Peak)

    This will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  36. Airway pressure (P Peak)

    This will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  37. Airway pressure (P Peak)

    This will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

  38. Respiratory rate

    This will be measured from the monitor.

    Measured: Before the procedure

  39. Respiratory rate

    This will be measured from the monitor.

    Measured: After the procedure of the first minute

  40. Respiratory rate

    This will be measured from the monitor.

    Measured: After the procedure of the fifth minute

  41. Respiratory rate

    This will be measured from the monitor.

    Measured: After the procedure of the tenth minute

  42. Respiratory rate

    This will be measured from the monitor.

    Measured: After the procedure of the fifteenth minute

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jun 2022
  2. Study start25 Jun 2022
  3. Primary completion25 Dec 2023 (estimated)
  4. Study completion25 Mar 2024 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
For this study, it was planned to recruit 40 patients who would have FOB in the ICU of Abant İzzet Baysal University Anesthesia. All intubated patients over 18 years of age who do not meet the exclusion criteria will be included. Volume-controlled ventilation modes will be preferred during FOB. The pre-trade-inspired FiO2 will be increased to 100%. During the procedure, mean blood pressure, heart rate, oxygen saturation, respiratory rate, CVP, airway pressure, and BIS will be closely monitored. Enteral feeding will be discontinued at least 6 hours before the procedure. At the end of the procedure, the endotracheal tube position will be checked. FOB will be performed using mobile bronchoscopy (Storz FB; 5.0 mm outer diameter). All patients will be monitored with BIS (Bispectral Index A-2000, Aspect Medical Systems, Netherlands) to measure the depth of sedation.
Masking
None (open label)
Enrolment
40 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05434624
Sponsor's protocol ID
BAIBU-MF-GH-EO-001
Status last verified
Jan 2023
First submitted
22 Jun 2022
Last updated
31 Jan 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Midazolam and Propofol in people with Ventilator-Induced Lung Injury and Pulmonary Atelectasis, run by Abant Izzet Baysal University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 31 Jan 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

P wave dispersion (PWD) (time frame: Before the procedure). The study lists 10 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 31 Jan 2023.

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