Lung CancerNCT05222568
Effect of the Minimum Bronchial Cuff Volume of Left-sided Double-lumen Endotracheal Tube for One-lung Ventilation on the Change of the Bronchial Cuff Pressure During Lateral Positioning in Thoracic Surgery
An observational study of Lung Cancer and Pneumothorax, run by Kyungpook National University Chilgok Hospital at 1 site in South Korea.
Trial summary
Over-inflation of the bronchial cuff of the double-lumen tube (DLT) can cause damage to the airway mucosa and misplacement of the tube, and under-inflation may cause incomplete collapse of the non-ventilated lung and incomplete ventilation of the lung that should be ventilated. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Lung Cancer, Pneumothorax
- What is being tested?
- Lateral positioning and Cuff pressure measurement
- Type of treatment
- Medical device, Lifestyle or therapy programme
- How many people
- 70 participants
- Where
- 1 siteSouth Korea
- Study dates
- 12 Oct 2021to 31 Dec 2021
- Phase
- Observational
- 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 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: The researcher contacts patients who are potential candidates for the study at the time of their preoperative visit. The participants are being enrolled in the study at the tertiary university hospital in Daegu, South Korea, from October 2021 to December 2021
Who may be able to join
- Patients aged 18-80 and with an American Society of Anesthesiologists (ASA) physical status of 1 or 3 who are scheduled to undergo elective video-assisted thoracoscopic surgery (VATS)
Who cannot join
- Need for a right-sided DLT B. An intraluminal lesion in the left main bronchus C. An anatomical problem in the tracheobronchial tree D. Patients with chronic obstructive pulmonary disease with impaired lung compliance E. Patients with interstitial lung disease with severe pulmonary dysfunction F. Patients with Body mass index (BMI) ≥ 30
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effect of the Minimum Bronchial Cuff Volume of Left-sided Double-lumen Endotracheal Tube for One-lung Ventilation on the Change of the Bronchial Cuff Pressure During Lateral Positioning in Thoracic Surgery: a Prospective Observational Study
Over-inflation of the bronchial cuff of the double-lumen tube (DLT) can cause damage to the airway mucosa and misplacement of the tube, and under-inflation may cause incomplete collapse of the non-ventilated lung and incomplete ventilation of the lung that should be ventilated. Appropriate cuff pressure is generally known to be ranged 20-30 cmH₂O, but in the study of Okubo et al., who observed the minimum bronchial cuff volume and pressure that did not cause air leakage using the method of confirming by capnography, it was possible to obtain the result that OLV was possible without air leakage even at a pressure lower than 25 cmH₂O (the generally recommended tube cuff pressure) in both men and women. In a recent study of Yamada et al., when using the capnography waveform-guided method to inflate the bronchial cuff by checking for air leakage using the capnography waveform, the bronchial cuff volume (BCV) that satisfies the air-tight seal was significantly smaller compared with a pressure-guided method to inflate the bronchial cuff with 20 cmH₂O.
The minimum bronchial cuff volume (BCVmin) at which such air leakage does not occur may vary from individual to individual. It is presumed that this is because the diameter of the left main bronchus (LMB) differs from individual to individual, which causes the variation of the gap between the diameter of the LMB and the outer diameter of the DLT mounted thereon. Moreover, the previous study revealed that the lateral positioning could increase the pressure of the bronchial cuff mounted on the LMB due to the gravity-induced morphological and conformational change of the trachea. Considering these factors, the researchers hypothesized that the change in the bronchial cuff pressure (BCP) due to a positional change might vary depending on whether the bronchial cuff was inflated, that is, the initially established BCVmin.
Therefore, in this study, the researchers tried to investigate the effect of BCVmin on the change of minimum bronchial cuff pressure (BCPmin) due to the positional change from the supine to lateral decubitus, by dividing the groups whose BCVmin is 0 ml or exceeds 0 ml.
- Conditions
- Lung Cancer, Pneumothorax
- Being tested
- Lateral positioning, Cuff pressure measurement
- Keywords
- Cuff pressure, Double lumen endotracheal tube, Lateral positioning
- Medical subject headings
- Lung Neoplasms, Pneumothorax
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Lateral positioningBehavioural
After the DLT intubation, the patient is placed in lateral decubitus position
Cuff pressure measurementDevice
The pressure of the bronchial cuff should be measured with cuff-manometer in supine position, and then measurement should be repeated after lateral positioning
| Study group | Role | What they receive |
|---|---|---|
| BCVmin=0 | This study was a prospective observational study, and the patients was divided into two groups with BCVmin=0 or BCVmin >0, according to the BCVmin which was naturally determined during anesthesia in each patient. Receives: Behavioral: Lateral positioning; Device: Cuff pressure measurement | |
| BCVmin>0 | The patients was divided into two groups with BCVmin=0 or BCVmin >0, according to the BCVmin which was naturally determined during anesthesia in each patient. Receives: Behavioral: Lateral positioning; Device: Cuff pressure measurement |
What is being measured
The primary outcome is the main question the study is designed to answer.
The change in minimum bronchial cuff pressure (BCPmin) when changing a posture from supine to lateral decubitus, that is the diffence in BCPmin between the supine and lateral position when injecting the BCVmin of air.
The bronchial cuff pressure measured when the bronchial cuff was inflated with the smallest bronchial cuff volume without air leakage was defined as BCPmin. It should be measured at each position (supine and lateral decubitus position). To do this, the bronchial cuff should be inflated with air, increasing the volume by 0.5 ml from 0 ml, and at the same time check and measure whether air is leaking around the bronchial cuff. As a method of checking for air leakage, the investigators should check whether 80% or more of the tidal volume set on the ventilator at each stage is properly supplied to the patient while increasing the air by 0.5 ml, and whether the end-tidal carbon dioxide graph has a typical trapezoidal shape.
Measured: 1. In supine position, 2 minutes after the completion of confirming the double-lumen endotrachial tube (DLT) position via fiberoptic bronchoscope (FOB), 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB
Secondary outcomes (3)
The minimum bronchial cuff volume (BCVmin)
The smallest bronchial cuff volume without air leak was defined as BCVmin. It should be measured at each position (supine and lateral decubitus positon). To do this, the bronchial cuff should be inflated with air, increasing the volume by 0.5 ml from 0 ml, and at the same time check and measure whether air is leaking around the bronchial cuff. As a method of checking for air leakage, the investigators should check whether 80% or more of the tidal volume set on the ventilator at each stage is properly supplied to the patient while increasing the air by 0.5 ml, and whether the end-tidal carbon dioxide graph has a typical trapezoidal shape.
Measured: 1. In supine position, 2 minutes after the completion of confirming the DLT position via FOB, 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB
The relationship between the minimum bronchial cuff volume (BCVmin) and the gap between the diameter of patient's left main bronchus and the outer diameter of the DLT
Measured: In supine position, , 2 minutes after the completion of confirming the DLT position via FOB
The incidence of the patients whose BCPmin when changing posture from supine to lateral decubitus
Increase or decrease of the BCPmin after positional change
Measured: 1. In supine position, 2 minutes after the completion of confirming the DLT position via FOB, 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Feb 2022
- Study start12 Oct 2021
- Primary completion31 Dec 2021
- Study completion31 Dec 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for Lung CancerStudies of the same condition, open and under way.
- 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
- Observational
- Observational model
- Case-control
- Time perspective
- Prospective
- Enrolment
- 70 participants (actual)
Sponsor and investigators
- Lead sponsor
- Kyungpook National University Chilgok Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Sung Hye Byun, Kyungpook National University Chilgok Hospital
- Investigators
- Sung-Hye Byun, M.D., Principal investigator, Kyungpook National University Chilgok Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05222568
- Sponsor's protocol ID
- KNUCH 2021-08-059-001
- Status last verified
- Jan 2022
- First submitted
- 29 Dec 2021
- Last updated
- 3 Feb 2022
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Tobias JD. Pediatric airway anatomy may not be what we thought: implications for clinical practice and the use of cuffed endotracheal tubes. Paediatr Anaesth. 2015 Jan;25(1):9-19. doi: 10.1111/pan.12528. Epub 2014 Sep 20.
PubMed 25243638Kim JH, Kim E, Kim IY, Choi EJ, Byun SH. Changes in the Bronchial Cuff Pressure of Left-Sided Double-Lumen Endotracheal Tube by Lateral Positioning: A Prospective Observational Study. J Clin Med. 2021 Apr 9;10(8):1590. doi: 10.3390/jcm10081590.
PubMed 33918748Yuceyar L, Kaynak K, Canturk E, Aykac B. Bronchial rupture with a left-sided polyvinylchloride double-lumen tube. Acta Anaesthesiol Scand. 2003 May;47(5):622-5. doi: 10.1034/j.1399-6576.2003.00102.x.
PubMed 12699525Hannallah MS, Benumof JL, McCarthy PO, Liang M. Comparison of three techniques to inflate the bronchial cuff of left polyvinylchloride double-lumen tubes. Anesth Analg. 1993 Nov;77(5):990-4. doi: 10.1213/00000539-199311000-00020.
PubMed 8214739Sultan P, Carvalho B, Rose BO, Cregg R. Endotracheal tube cuff pressure monitoring: a review of the evidence. J Perioper Pract. 2011 Nov;21(11):379-86. doi: 10.1177/175045891102101103.
PubMed 22165491Okubo H, Kawasaki T, Shibayama A, Sata T. [Measurement of the Minimum Pressure in the Bronchial Cuff during One-lung Ventilation Using a Capnometer]. Masui. 2015 Aug;64(8):794-8. Japanese.
PubMed 26442408Yamada Y, Tanabe K, Nagase K, Ishihara T, Iida H. A Comparison of the Required Bronchial Cuff Volume Obtained by 2 Cuff Inflation Methods, Capnogram Waveform-Guided Versus Pressure-Guided: A Prospective Randomized Controlled Study. Anesth Analg. 2021 Mar 1;132(3):827-835. doi: 10.1213/ANE.0000000000005179.
PubMed 33002924
Study at a glance
From the registry record, last updated by the sponsor on 3 Feb 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effect of the Minimum Bronchial Cuff Volume of Left-sided Double-lumen Endotracheal Tube for One-lung Ventilation on the Change of the Bronchial Cuff Pressure During Lateral Positioning in Thoracic Surgery: a Prospective Observational Study
- ClinicalTrials.gov ID
- NCT05222568
- Acronym / sponsor ID
- KNUCH 2021-08-059-001
- Conditions
- Lung Cancer, Pneumothorax
- Keywords
- Cuff pressure, Double lumen endotracheal tube, Lateral positioning
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 70 participants (actual)
- Lead sponsor
- Kyungpook National University Chilgok HospitalUniversity, hospital or other
- Study start
- 12 Oct 2021 (actual)
- Primary completion
- 31 Dec 2021 (actual)
- Study completion
- 31 Dec 2021 (actual)
- First posted
- 3 Feb 2022 (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.
Over-inflation of the bronchial cuff of the double-lumen tube (DLT) can cause damage to the airway mucosa and misplacement of the tube, and under-inflation may cause incomplete collapse of the non-ventilated lung and incomplete ventilation of the lung that should be ventilated. Appropriate cuff pressure is generally known to be ranged 20-30 cmH₂O, but in the study of Okubo et al., who observed the minimum bronchial cuff volume and pressure that did not cause air leakage using the method of confirming by capnography, it was possible to obtain the result that OLV was possible without air leakage even at a pressure lower than 25 cmH₂O (the generally recommended tube cuff pressure) in both men and women. In a recent study of Yamada et al., when using the capnography waveform-guided method to inflate the bronchial cuff by checking for air leakage using the capnography waveform, the bronchial cuff volume (BCV) that satisfies the air-tight seal was significantly smaller compared with a pressure-guided method to inflate the bronchial cuff with 20 cmH₂O.
The minimum bronchial cuff volume (BCVmin) at which such air leakage does not occur may vary from individual to individual. It is presumed that this is because the diameter of the left main bronchus (LMB) differs from individual to individual, which causes the variation of the gap between the diameter of the LMB and the outer diameter of the DLT mounted thereon. Moreover, the previous study revealed that the lateral positioning could increase the pressure of the bronchial cuff mounted on the LMB due to the gravity-induced morphological and conformational change of the trachea. Considering these factors, the researchers hypothesized that the change in the bronchial cuff pressure (BCP) due to a positional change might vary depending on whether the bronchial cuff was inflated, that is, the initially established BCVmin.
Therefore, in this study, the researchers tried to investigate the effect of BCVmin on the change of minimum bronchial cuff pressure (BCPmin) due to the positional change from the supine to lateral decubitus, by dividing the groups whose BCVmin is 0 ml or exceeds 0 ml.
Study design
- Observational model
- Case-control
- Time perspective
- Prospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| BCVmin=0 | – | Behavioral: Lateral positioning, Device: Cuff pressure measurementThis study was a prospective observational study, and the patients was divided into two groups with BCVmin=0 or BCVmin >0, according to the BCVmin which was naturally determined during anesthesia in each patient. |
| BCVmin>0 | – | Behavioral: Lateral positioning, Device: Cuff pressure measurementThe patients was divided into two groups with BCVmin=0 or BCVmin >0, according to the BCVmin which was naturally determined during anesthesia in each patient. |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- The researcher contacts patients who are potential candidates for the study at the time of their preoperative visit. The participants are being enrolled in the study at the tertiary university hospital in Daegu, South Korea, from October 2021 to December 2021
Key inclusion criteria (1 listed)
- Patients aged 18-80 and with an American Society of Anesthesiologists (ASA) physical status of 1 or 3 who are scheduled to undergo elective video-assisted thoracoscopic surgery (VATS)
Key exclusion criteria (1 listed)
- Need for a right-sided DLT B. An intraluminal lesion in the left main bronchus C. An anatomical problem in the tracheobronchial tree D. Patients with chronic obstructive pulmonary disease with impaired lung compliance E. Patients with interstitial lung disease with severe pulmonary dysfunction F. Patients with Body mass index (BMI) ≥ 30
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 |
|---|---|---|
| Lateral positioningAfter the DLT intubation, the patient is placed in lateral decubitus position | Behavioural | BCVmin=0, BCVmin>0 |
| Cuff pressure measurementThe pressure of the bronchial cuff should be measured with cuff-manometer in supine position, and then measurement should be repeated after lateral positioning | Device | BCVmin=0, BCVmin>0 |
Primary outcome
The change in minimum bronchial cuff pressure (BCPmin) when changing a posture from supine to lateral decubitus, that is the diffence in BCPmin between the supine and lateral position when injecting the BCVmin of air.
Time frame: 1. In supine position, 2 minutes after the completion of confirming the double-lumen endotrachial tube (DLT) position via fiberoptic bronchoscope (FOB), 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB
The bronchial cuff pressure measured when the bronchial cuff was inflated with the smallest bronchial cuff volume without air leakage was defined as BCPmin. It should be measured at each position (supine and lateral decubitus position). To do this, the bronchial cuff should be inflated with air, increasing the volume by 0.5 ml from 0 ml, and at the same time check and measure whether air is leaking around the bronchial cuff. As a method of checking for air leakage, the investigators should check whether 80% or more of the tidal volume set on the ventilator at each stage is properly supplied to the patient while increasing the air by 0.5 ml, and whether the end-tidal carbon dioxide graph has a typical trapezoidal shape.
3 secondary outcomes
The minimum bronchial cuff volume (BCVmin)
Time frame: 1. In supine position, 2 minutes after the completion of confirming the DLT position via FOB, 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB
The relationship between the minimum bronchial cuff volume (BCVmin) and the gap between the diameter of patient's left main bronchus and the outer diameter of the DLT
Time frame: In supine position, , 2 minutes after the completion of confirming the DLT position via FOB
The incidence of the patients whose BCPmin when changing posture from supine to lateral decubitus
Time frame: 1. In supine position, 2 minutes after the completion of confirming the DLT position via FOB, 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB
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 3 Feb 2022.
- Background: PubMed 25243638Tobias JD. Pediatric airway anatomy may not be what we thought: implications for clinical practice and the use of cuffed endotracheal tubes. Paediatr Anaesth. 2015 Jan;25(1):9-19. doi: 10.1111/pan.12528. Epub 2014 Sep 20.
- Background: PubMed 33918748Kim JH, Kim E, Kim IY, Choi EJ, Byun SH. Changes in the Bronchial Cuff Pressure of Left-Sided Double-Lumen Endotracheal Tube by Lateral Positioning: A Prospective Observational Study. J Clin Med. 2021 Apr 9;10(8):1590. doi: 10.3390/jcm10081590.
- Background: PubMed 12699525Yuceyar L, Kaynak K, Canturk E, Aykac B. Bronchial rupture with a left-sided polyvinylchloride double-lumen tube. Acta Anaesthesiol Scand. 2003 May;47(5):622-5. doi: 10.1034/j.1399-6576.2003.00102.x.
- Background: PubMed 8214739Hannallah MS, Benumof JL, McCarthy PO, Liang M. Comparison of three techniques to inflate the bronchial cuff of left polyvinylchloride double-lumen tubes. Anesth Analg. 1993 Nov;77(5):990-4. doi: 10.1213/00000539-199311000-00020.
- Background: PubMed 22165491Sultan P, Carvalho B, Rose BO, Cregg R. Endotracheal tube cuff pressure monitoring: a review of the evidence. J Perioper Pract. 2011 Nov;21(11):379-86. doi: 10.1177/175045891102101103.
- Background: PubMed 26442408Okubo H, Kawasaki T, Shibayama A, Sata T. [Measurement of the Minimum Pressure in the Bronchial Cuff during One-lung Ventilation Using a Capnometer]. Masui. 2015 Aug;64(8):794-8. Japanese.
- Background: PubMed 33002924Yamada Y, Tanabe K, Nagase K, Ishihara T, Iida H. A Comparison of the Required Bronchial Cuff Volume Obtained by 2 Cuff Inflation Methods, Capnogram Waveform-Guided Versus Pressure-Guided: A Prospective Randomized Controlled Study. Anesth Analg. 2021 Mar 1;132(3):827-835. doi: 10.1213/ANE.0000000000005179.
Related trials for Lung Cancer
RecruitingPhase 1/2
Study of INBRX-106 and INBRX-106 in Combination With Pembrolizumab (Keytruda®) in Subjects With Locally Advanced or Metastatic Solid Tumors (Hexavalent OX40 Agonist)
Solid Tumor, Non-Small Cell Lung Cancer
RecruitingObservational study
A Prospective ,Multicenter ,Non-interventional ,Real-world Study Observing Changes in Molecular Markers Osimertinib Targeted Therapy in EGFRm NSCLC
Non Small Cell Lung Cancer
Active, not recruiting
Streamlined Geriatric and Oncological Evaluation Based On IC Technology
Breast Cancer, Comorbidities and Coexisting Conditions
RecruitingPhase 3
A Study Evaluating Sotorasib Platinum Doublet Combination Versus Pembrolizumab Platinum Doublet Combination as a Front-Line Therapy in Participants With Stage IV or Advanced Stage IIIB/C Nonsquamous Non-Small Cell Lung Cancers (CodeBreaK 202)
Non-Small Cell Lung Cancer (NSCLC)
Active, not recruitingPhase 2
Datopotamab Deruxtecan (Dato-DXd, DS-1062a) in Advanced and/or Unresectable Non-Small Cell Lung Cancer
Metastatic Lung Cancer, Advanced Non Small Cell Lung Cancer
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.
Sung-Hye Byun, M.D. principal investigator
Kyungpook National University Chilgok Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Lung Cancer and Pneumothorax, run by Kyungpook National University Chilgok Hospital at 1 site in South Korea.
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 1 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 3 Feb 2022. 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 South Korea. 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?
The change in minimum bronchial cuff pressure (BCPmin) when changing a posture from supine to lateral decubitus, that is the diffence in BCPmin between the supine and lateral position when injecting the BCVmin of air. (time frame: 1. In supine position, 2 minutes after the completion of confirming the double-lumen endotrachial tube (DLT) position via fiberoptic bronchoscope (FOB), 2. In lateral position, 2 minutes after the completion of confirming the DLT position via FOB). 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 NCT05222568, which also lists 7 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 3 Feb 2022.