Heart Valvular DiseaseNCT06299735
Comparison of Airway Management With Bronchial Blocker and Double-Lumen Tube in Single-Lung Ventilation
A study testing Minimally Invasive Cardiac Surgery (airway management with double-lumen tube) and Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker) in people with Heart Valvular Disease and Coronary Arteriosclerosis, run by Ankara City Hospital Bilkent at 1 site in Turkey (Türkiye).
Trial summary
In this study, the primary aim is to compare the impact of using a double-lumen tube and bronchial blocker for single-lung ventilation in patients undergoing minimal invasive cardiac surgeries on postoperative pulmonary functions. Read more about this study
- Who is it for?
- Ages 18 years and olderHealthy volunteers can take part
- Conditions the study is for
- Heart Valvular Disease, Coronary Arteriosclerosis, One-lung Ventilation
- What is being tested?
- Minimally Invasive Cardiac Surgery (airway management with double-lumen tube) and Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker)
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 66 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 17 Apr 2024to 1 May 2025
- 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
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Patients planned for on-pump minimal invasive cardiac surgical procedures requiring single-lung ventilation
- Female and male patients aged 18 and above
- Patients with ASA scores of 1-2-3
- Patients with signed informed consent to participate in the study
- Patients with a Body Mass Index (BMI) less than 40
Who cannot join
- Emergency surgeries
- Patients with ASA scores greater than 3
- Advanced-stage organ (heart, kidney, liver, lung) failure
- Advanced lung diseases (COPD, FEV1<50%, restrictive lung diseases, history of chest surgery, Pulmonary Hypertension, PAB>30mmHg)
- Patients with anticipated difficult intubation
- Pregnant individuals
- Patients with a BMI greater than 40
- Patients lacking the ability to read, understand, sign the informed consent form, and those who do not wish to participate in the study
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Ankara bilkent city hospital
Ankara, Çankaya, 06530
About this study
In this study, the primary aim is to compare the impact of using a double-lumen tube and bronchial blocker for single-lung ventilation in patients undergoing minimal invasive cardiac surgeries on postoperative pulmonary functions. Secondary objectives include the comparison of application duration, success in lung collapse, and the number of repositioning attempts for both techniques.
Read the detailed description
This study is a single-center, prospective, randomized clinical trial. After obtaining ethical approval, 66 patients meeting the inclusion criteria and providing consent, who will undergo minimal invasive cardiac surgery at Ankara City Hospital Heart and Vascular Hospital Operating Room, will be included in the study. Patients will be randomized into two groups using a sealed envelope method (Group DLT: Group undergoing Single-Lung Ventilation with a Double-Lumen Tube, and Group BB: Group undergoing Single-Lung Ventilation with a bronchial blocker within a single-lumen Endotracheal Tube). Both groups will receive standard anesthesia induction and maintenance. Patients brought to the operating room without premedication will start invasive blood pressure monitoring with awake intra-arterial cannulation in addition to standard ASA monitoring.
Anesthesia induction will be performed with 1 mg/kg lidocaine, 1 µg/kg fentanyl, 1 mg/kg propofol, and 0.7 mg/kg rocuronium. After 3 minutes of anesthesia induction, a double-lumen tube/endotracheal tube-bronchial blocker of the appropriate size based on patients' height and gender will be placed. Tube placement will be confirmed with the assistance of a flexible bronchoscope in both groups. During anesthesia maintenance, the gas mixture of 50%/50% oxygen/air with 1-2% sevoflurane will be adjusted to maintain BIS between 40-60. During mechanical ventilation, in both groups, tidal volume of 6-8 ml/kg, respiratory rate of 10-12/min, and PEEP of 4-5 cmH2O will be set for double-lung ventilation, and for single-lung ventilation, tidal volume of 4-6 ml/kg, respiratory rate of 12-14/min, and PEEP of 4-5 cmH2O will be adjusted to maintain PIP<25cmH2O, SpO2>90, and PaCO2<40 mmHg (based on ideal body weight).
Apart from the two compared airway management techniques, both groups will receive standard anesthetic care, multimodal analgesia, and cardiopulmonary bypass method. Determining the impact of these methods on pulmonary functions is crucial to avoid adding potential pulmonary complications related to the inflammatory damage caused by the cardiopulmonary bypass pump to the airway management used for single-lung ventilation. Additionally, comparing the rates of technical complications and placement times for these techniques can guide anesthesia management. Both techniques are routinely used in our clinic for the minimal invasive cardiac surgery procedure based on the preference of anesthesia providers.
- Being tested
- Minimally Invasive Cardiac Surgery (airway management with double-lumen tube), Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker)
- Keywords
- postoperative pulmonary complications, minimally invasive cardiac surgery, one lung ventilation
- Medical subject headings
- Heart Valve Diseases, Coronary Artery Disease
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Minimally Invasive Cardiac Surgery (airway management with double-lumen tube)Procedure or surgery
Anesthesia induction will involve 1 mg/kg lidocaine, 1 µg/kg fentanyl, 1 mg/kg propofol, and 0.7 mg/kg rocuronium. Following anesthesia induction, a double-lumen tube will be inserted.Subsequently, patients will be connected to a mechanical ventilator. Tube placement will be confirmed using fiberoptic bronchoscopy.
Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker)Procedure or surgery
Anesthesia induction will involve 1 mg/kg lidocaine, 1 µg/kg fentanyl, 1 mg/kg propofol, and 0.7 mg/kg rocuronium. Following anesthesia induction, endotracheal tube-bronchial blocker will be inserted.Subsequently, patients will be connected to a mechanical ventilator. Tube placement will be confirmed using fiberoptic bronchoscopy.
| Study group | Role | What they receive |
|---|---|---|
| Patient group using a double-lumen tube for single-lung ventilation | Active comparator | Group DLT: For the assessment of postoperative pulmonary complications, arterial blood gas analysis, chest X-ray, respiratory sounds, and the patient's oxygen requirement will be monitored every 6 hours for 24 hours. The parameters to be examined preoperatively are: smoking history, ARISCAT score (Age, Preoperative SpO₂, Respiratory infection in the last month, Preoperative anemia (Hgb ≤10 g/dL), Surgical incision, Duration of surgery, Emergency procedure). Receives: Procedure: Minimally Invasive Cardiac Surgery (airway management with double-lumen tube) |
| Patient group using a endobronchial blocker for single-lung ventilation | Active comparator | Group BB: For the assessment of postoperative pulmonary complications, arterial blood gas analysis, chest X-ray, respiratory sounds, and the patient's oxygen requirement will be monitored every 6 hours for 24 hours. The parameters to be examined preoperatively are: smoking history, ARISCAT score (Age, Preoperative SpO₂, Respiratory infection in the last month, Preoperative anemia (Hgb ≤10 g/dL), Surgical incision, Duration of surgery, Emergency procedure). Receives: Procedure: Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Comparison of Postoperative Pulmonary Complications in Patient Groups Undergoing Single-Lung Ventilation with Double-Lumen Tube and Bronchial Blocker
Until discharge;
- Patients will be regularly visited during the postoperative period.
- Arterial blood gas analysis will be conducted at 6-hour intervals within the first 24 hours, and if necessary thereafter.
- Respiratory sounds will be auscultated daily.
- Chest X-rays will be taken every day.
The presence of pneumothorax, atelectasis, hemothorax, pneumonia, or ARDS in patients will be observed and recorded.
Measured: Postoperative 7 days
Secondary outcomes (5)
Duration of insertion of the double-lumen tube / bronchial blocker
In Double Lumen Tube group : The time elapsed from the beginning of laryngoscopy following the induction of general anesthesia to the placement of the double-lumen tube and its confirmation with fiberoptic bronchoscopy.
In Bronchial Blocker group : The time elapsed from the beginning of laryngoscopy following the induction of general anesthesia to the completion of endotracheal tube placement, and subsequently, the placement of the bronchial blocker under fiberoptic bronchoscopy guidance will be recorded.
Measured: 30 minutes
Incidence of postoperative sore throat
Patients will be visited daily during the postoperative period, and they will be asked if they have sore throat . The intensity of throat pain will be assessed using a visual analog scale. Patients will be asked to assign a number from 0 to 10 to describe the severity of their pain (0: no pain, 10: severe pain ) and it will be recorded.
Measured: Postoperative 7 days
Incidence of postoperative hoarseness
Patients will be visited daily during the postoperative period, and they will be asked if they have hoarseness and it will be recorded as either yes or no.
Measured: Postoperative 7 days
Impact of the success of lung collapse
End of the surgery, the surgeon will be asked about the level of lung collapse, and they will be requested to assign a number indicating the level of maximum collapse on a verbal rating scale from 0 to 10. (0 :no lung collapse, 10: complete collapse) And it will be recorded.
Measured: Until the end of the operation (maximum 12 hours )
Satisfactory lung collapse time
After one lung ventilation begins, the surgeon will be asked about the level of lung collapse,and they will be instructed to notify when satisfactory lung collapse (when the collapse score of 8) is achieved.The time elapsed from the initiation of single-lung ventilation until satisfactory collapse is achieved will be recorded. ( minutes)
Measured: Until the end of the operation (maximum 12 hours )
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Mar 2024
- Study start17 Apr 2024
- Primary completion31 Dec 2024
- Study completion1 May 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (8)Papers the sponsor has linked to this study.
- Other trials for Heart Valvular DiseaseStudies of the same condition, open and under way.
- More trials run by Ankara City Hospital BilkentThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Prevention
- Allocation
- Randomised
- Intervention model
- Sequential
- Model description
- The anesthesia method applied for both patient groups is the same. However, the airway maintenance device used will vary between two different patient groups. Group BB: A bronchial blocker will be used for this patient group, Group DLT: A double-lumen tube will be used for this patient group. The parameters to be recorded for both patient groups include: preoperative smoking history, ARISCAT score, systolic arterial pressure, diastolic arterial pressure, saturation, pulse, and the duration of airway device insertion following anesthesia induction and intubation. For the assessment of postoperative pulmonary complications in both patient groups, arterial blood gas analysis, chest X-ray, respiratory sounds, and the patient's oxygen requirement will be monitored every 6 hours for 24 hours.
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 66 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ankara City Hospital Bilkent
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Nevriye Salman, Principal investigator, ankara bilkent city hospital, anesthesiology and reanimation clinic
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06299735
- Sponsor's protocol ID
- AsenaIremYildiz1
- Status last verified
- Jan 2024
- First submitted
- 6 Feb 2024
- Last updated
- 27 Feb 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Ganapathy S. Anaesthesia for minimally invasive cardiac surgery. Best Pract Res Clin Anaesthesiol. 2002 Mar;16(1):63-80. doi: 10.1053/bean.2001.0208.
PubMed 12491544Vernick W, Atluri P. Robotic and minimally invasive cardiac surgery. Anesthesiol Clin. 2013 Jun;31(2):299-320. doi: 10.1016/j.anclin.2012.12.002. Epub 2013 Mar 13.
PubMed 23711646Patel M, Wilson A, Ong C. Double-lumen tubes and bronchial blockers. BJA Educ. 2023 Nov;23(11):416-424. doi: 10.1016/j.bjae.2023.07.001. Epub 2023 Sep 18. No abstract available.
PubMed 37876764Knoll H, Ziegeler S, Schreiber JU, Buchinger H, Bialas P, Semyonov K, Graeter T, Mencke T. Airway injuries after one-lung ventilation: a comparison between double-lumen tube and endobronchial blocker: a randomized, prospective, controlled trial. Anesthesiology. 2006 Sep;105(3):471-7. doi: 10.1097/00000542-200609000-00009.
PubMed 16931978Kottenberg-Assenmacher E, Kamler M, Peters J. Minimally invasive endoscopic port-access intracardiac surgery with one lung ventilation: impact on gas exchange and anaesthesia resources. Anaesthesia. 2007 Mar;62(3):231-8. doi: 10.1111/j.1365-2044.2007.04954.x.
PubMed 17300299Ender J, Bury AM, Raumanns J, Schlunken S, Kiefer H, Bellinghausen W, Petry A. The use of a bronchial blocker compared with a double-lumen tube for single-lung ventilation during minimally invasive direct coronary artery bypass surgery. J Cardiothorac Vasc Anesth. 2002 Aug;16(4):452-5. doi: 10.1053/jcan.2002.125144.
PubMed 12154424Ko R, McRae K, Darling G, Waddell TK, McGlade D, Cheung K, Katz J, Slinger P. The use of air in the inspired gas mixture during two-lung ventilation delays lung collapse during one-lung ventilation. Anesth Analg. 2009 Apr;108(4):1092-6. doi: 10.1213/ane.0b013e318195415f.
PubMed 19299766Zhang Y, Yan W, Fan Z, Kang X, Tan H, Fu H, Li Z, Chen KN, Chen J. Preemptive one lung ventilation enhances lung collapse during thoracoscopic surgery: A randomized controlled trial. Thorac Cancer. 2019 Jun;10(6):1448-1452. doi: 10.1111/1759-7714.13091. Epub 2019 May 21.
PubMed 31115153
Study at a glance
From the registry record, last updated by the sponsor on 27 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Airway Management With Bronchial Blocker and Double-Lumen Tube in Single-Lung Ventilation
- ClinicalTrials.gov ID
- NCT06299735
- Acronym / sponsor ID
- AsenaIremYildiz1
- Keywords
- postoperative pulmonary complications, minimally invasive cardiac surgery, one lung ventilation
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 66 participants (actual)
- Lead sponsor
- Ankara City Hospital BilkentUniversity, hospital or other
- Study start
- 17 Apr 2024 (actual)
- Primary completion
- 31 Dec 2024 (actual)
- Study completion
- 1 May 2025 (actual)
- First posted
- 8 Mar 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In this study, the primary aim is to compare the impact of using a double-lumen tube and bronchial blocker for single-lung ventilation in patients undergoing minimal invasive cardiac surgeries on postoperative pulmonary functions. Secondary objectives include the comparison of application duration, success in lung collapse, and the number of repositioning attempts for both techniques.
Detailed description
This study is a single-center, prospective, randomized clinical trial. After obtaining ethical approval, 66 patients meeting the inclusion criteria and providing consent, who will undergo minimal invasive cardiac surgery at Ankara City Hospital Heart and Vascular Hospital Operating Room, will be included in the study. Patients will be randomized into two groups using a sealed envelope method (Group DLT: Group undergoing Single-Lung Ventilation with a Double-Lumen Tube, and Group BB: Group undergoing Single-Lung Ventilation with a bronchial blocker within a single-lumen Endotracheal Tube). Both groups will receive standard anesthesia induction and maintenance. Patients brought to the operating room without premedication will start invasive blood pressure monitoring with awake intra-arterial cannulation in addition to standard ASA monitoring.
Anesthesia induction will be performed with 1 mg/kg lidocaine, 1 µg/kg fentanyl, 1 mg/kg propofol, and 0.7 mg/kg rocuronium. After 3 minutes of anesthesia induction, a double-lumen tube/endotracheal tube-bronchial blocker of the appropriate size based on patients' height and gender will be placed. Tube placement will be confirmed with the assistance of a flexible bronchoscope in both groups. During anesthesia maintenance, the gas mixture of 50%/50% oxygen/air with 1-2% sevoflurane will be adjusted to maintain BIS between 40-60. During mechanical ventilation, in both groups, tidal volume of 6-8 ml/kg, respiratory rate of 10-12/min, and PEEP of 4-5 cmH2O will be set for double-lung ventilation, and for single-lung ventilation, tidal volume of 4-6 ml/kg, respiratory rate of 12-14/min, and PEEP of 4-5 cmH2O will be adjusted to maintain PIP<25cmH2O, SpO2>90, and PaCO2<40 mmHg (based on ideal body weight).
Apart from the two compared airway management techniques, both groups will receive standard anesthetic care, multimodal analgesia, and cardiopulmonary bypass method. Determining the impact of these methods on pulmonary functions is crucial to avoid adding potential pulmonary complications related to the inflammatory damage caused by the cardiopulmonary bypass pump to the airway management used for single-lung ventilation. Additionally, comparing the rates of technical complications and placement times for these techniques can guide anesthesia management. Both techniques are routinely used in our clinic for the minimal invasive cardiac surgery procedure based on the preference of anesthesia providers.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Sequential
- Masking
- Single blind (participant)
- Number of arms
- 2
- Model description
- The anesthesia method applied for both patient groups is the same. However, the airway maintenance device used will vary between two different patient groups. Group BB: A bronchial blocker will be used for this patient group, Group DLT: A double-lumen tube will be used for this patient group. The parameters to be recorded for both patient groups include: preoperative smoking history, ARISCAT score, systolic arterial pressure, diastolic arterial pressure, saturation, pulse, and the duration of airway device insertion following anesthesia induction and intubation. For the assessment of postoperative pulmonary complications in both patient groups, arterial blood gas analysis, chest X-ray, respiratory sounds, and the patient's oxygen requirement will be monitored every 6 hours for 24 hours.
| Arm | Type | Receives |
|---|---|---|
| Patient group using a double-lumen tube for single-lung ventilation | Active comparator | Procedure: Minimally Invasive Cardiac Surgery (airway management with double-lumen tube)Group DLT: For the assessment of postoperative pulmonary complications, arterial blood gas analysis, chest X-ray, respiratory sounds, and the patient's oxygen requirement will be monitored every 6 hours for 24 hours. The parameters to be examined preoperatively are: smoking history, ARISCAT score (Age, Preoperative SpO₂, Respiratory infection in the last month, Preoperative anemia (Hgb ≤10 g/dL), Surgical incision, Duration of surgery, Emergency procedure). |
| Patient group using a endobronchial blocker for single-lung ventilation | Active comparator | Procedure: Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker)Group BB: For the assessment of postoperative pulmonary complications, arterial blood gas analysis, chest X-ray, respiratory sounds, and the patient's oxygen requirement will be monitored every 6 hours for 24 hours. The parameters to be examined preoperatively are: smoking history, ARISCAT score (Age, Preoperative SpO₂, Respiratory infection in the last month, Preoperative anemia (Hgb ≤10 g/dL), Surgical incision, Duration of surgery, Emergency procedure). |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (5 listed)
- Patients planned for on-pump minimal invasive cardiac surgical procedures requiring single-lung ventilation
- Female and male patients aged 18 and above
- Patients with ASA scores of 1-2-3
- Patients with signed informed consent to participate in the study
- Patients with a Body Mass Index (BMI) less than 40
Key exclusion criteria (8 listed)
- Emergency surgeries
- Patients with ASA scores greater than 3
- Advanced-stage organ (heart, kidney, liver, lung) failure
- Advanced lung diseases (COPD, FEV1<50%, restrictive lung diseases, history of chest surgery, Pulmonary Hypertension, PAB>30mmHg)
- Patients with anticipated difficult intubation
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Minimally Invasive Cardiac Surgery (airway management with double-lumen tube)Anesthesia induction will involve 1 mg/kg lidocaine, 1 µg/kg fentanyl, 1 mg/kg propofol, and 0.7 mg/kg rocuronium. Following anesthesia induction, a double-lumen tube will be inserted.Subsequently, patients will be connected to a mechanical ventilator. Tube placement will be confirmed using fiberoptic bronchoscopy. | Procedure or surgery | Patient group using a double-lumen tube for single-lung ventilation |
| Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker)Anesthesia induction will involve 1 mg/kg lidocaine, 1 µg/kg fentanyl, 1 mg/kg propofol, and 0.7 mg/kg rocuronium. Following anesthesia induction, endotracheal tube-bronchial blocker will be inserted.Subsequently, patients will be connected to a mechanical ventilator. Tube placement will be confirmed using fiberoptic bronchoscopy. | Procedure or surgery | Patient group using a endobronchial blocker for single-lung ventilation |
Primary outcome
Comparison of Postoperative Pulmonary Complications in Patient Groups Undergoing Single-Lung Ventilation with Double-Lumen Tube and Bronchial Blocker
Time frame: Postoperative 7 days
Until discharge; * Patients will be regularly visited during the postoperative period. * Arterial blood gas analysis will be conducted at 6-hour intervals within the first 24 hours, and if necessary thereafter. * Respiratory sounds will be auscultated daily. * Chest X-rays will be taken every day. The presence of pneumothorax, atelectasis, hemothorax, pneumonia, or ARDS in patients will be observed and recorded.
5 secondary outcomes
Duration of insertion of the double-lumen tube / bronchial blocker
Time frame: 30 minutes
Incidence of postoperative sore throat
Time frame: Postoperative 7 days
Incidence of postoperative hoarseness
Time frame: Postoperative 7 days
Impact of the success of lung collapse
Time frame: Until the end of the operation (maximum 12 hours )
Satisfactory lung collapse time
Time frame: Until the end of the operation (maximum 12 hours )
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Feb 2026.
- Results publication: PubMed 12491544Ganapathy S. Anaesthesia for minimally invasive cardiac surgery. Best Pract Res Clin Anaesthesiol. 2002 Mar;16(1):63-80. doi: 10.1053/bean.2001.0208.
- Results publication: PubMed 23711646Vernick W, Atluri P. Robotic and minimally invasive cardiac surgery. Anesthesiol Clin. 2013 Jun;31(2):299-320. doi: 10.1016/j.anclin.2012.12.002. Epub 2013 Mar 13.
- Results publication: PubMed 37876764Patel M, Wilson A, Ong C. Double-lumen tubes and bronchial blockers. BJA Educ. 2023 Nov;23(11):416-424. doi: 10.1016/j.bjae.2023.07.001. Epub 2023 Sep 18. No abstract available.
- Results publication: PubMed 16931978Knoll H, Ziegeler S, Schreiber JU, Buchinger H, Bialas P, Semyonov K, Graeter T, Mencke T. Airway injuries after one-lung ventilation: a comparison between double-lumen tube and endobronchial blocker: a randomized, prospective, controlled trial. Anesthesiology. 2006 Sep;105(3):471-7. doi: 10.1097/00000542-200609000-00009.
- Results publication: PubMed 17300299Kottenberg-Assenmacher E, Kamler M, Peters J. Minimally invasive endoscopic port-access intracardiac surgery with one lung ventilation: impact on gas exchange and anaesthesia resources. Anaesthesia. 2007 Mar;62(3):231-8. doi: 10.1111/j.1365-2044.2007.04954.x.
- Results publication: PubMed 12154424Ender J, Bury AM, Raumanns J, Schlunken S, Kiefer H, Bellinghausen W, Petry A. The use of a bronchial blocker compared with a double-lumen tube for single-lung ventilation during minimally invasive direct coronary artery bypass surgery. J Cardiothorac Vasc Anesth. 2002 Aug;16(4):452-5. doi: 10.1053/jcan.2002.125144.
- Results publication: PubMed 19299766Ko R, McRae K, Darling G, Waddell TK, McGlade D, Cheung K, Katz J, Slinger P. The use of air in the inspired gas mixture during two-lung ventilation delays lung collapse during one-lung ventilation. Anesth Analg. 2009 Apr;108(4):1092-6. doi: 10.1213/ane.0b013e318195415f.
- Results publication: PubMed 31115153Zhang Y, Yan W, Fan Z, Kang X, Tan H, Fu H, Li Z, Chen KN, Chen J. Preemptive one lung ventilation enhances lung collapse during thoracoscopic surgery: A randomized controlled trial. Thorac Cancer. 2019 Jun;10(6):1448-1452. doi: 10.1111/1759-7714.13091. Epub 2019 May 21.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Nevriye Salman principal investigator
ankara bilkent city hospital, anesthesiology and reanimation clinic
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Minimally Invasive Cardiac Surgery (airway management with double-lumen tube) and Minimally Invasive Cardiac Surgery (airway management with endobronchial blocker) in people with Heart Valvular Disease and Coronary Arteriosclerosis, run by Ankara City Hospital Bilkent 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 5 inclusion and 8 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: finished, as of the sponsor's last update on 27 Feb 2026. 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Comparison of Postoperative Pulmonary Complications in Patient Groups Undergoing Single-Lung Ventilation with Double-Lumen Tube and Bronchial Blocker (time frame: Postoperative 7 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06299735, which also lists 8 linked publications.
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 27 Feb 2026.