Postoperative AtelectasisNCT07061002
Evaluation of Recruitment Effectiveness in Patients With Obstructive Sleep Apnea Syndrome Using Lung Ultrasound
A study testing Lung Recruitment Maneuver and Positional Lung Recruitment Maneuver in people with Postoperative Atelectasis and Lung Ultrasonography Score, run by Istanbul University - Cerrahpasa at 1 site in Turkey (Türkiye).
Trial summary
Patients with obstructive sleep apnea syndrome are at higher risk for respiratory complications after surgery. Oxygen depletion and respiratory distress are common in patients with obstructive sleep apnea syndrome. Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Postoperative Atelectasis, Lung Ultrasonography Score, Recruitment
- What is being tested?
- Lung Recruitment Maneuver and Positional Lung Recruitment Maneuver
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 66 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 25 Jul 2025to 1 Jul 2026
- Phase
- Interventional
- Are there results?
- Not yet: the study is under way
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 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients aged 18-65
- American Society of Anesthesia I-III
- Patients with consent to participate
- Patients with preoperative OSA diagnosis (polysomnography or STOP-BANG≥3)
Who cannot join
- American Society of Anesthesia >IV
- Patients planned for postoperative intensive care follow-up 3. Cardiac surgery
- Anesthesia outside the operating room
- History of neuromuscular disease
- Emergency surgical application
- Invasive airway surgeries (pharynx, larynx)
- Lung surgeries (pneumonectomy, lobectomy, etc.) 9. Presence of pregnancy
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Turkey (Türkiye)1 site
Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty
Istanbul, 34153
About this study
Patients with obstructive sleep apnea syndrome are at higher risk for respiratory complications after surgery. Oxygen depletion and respiratory distress are common in patients with obstructive sleep apnea syndrome. In this study, the effectiveness of the recruitment maneuver applied in the postoperative period will be investigated via lung ultrasound. Recruitment is a technique performed to improve the oxygen levels of patients. Patients diagnosed with obstructive sleep apnea syndrome between the ages of 18-65 will be included in the study and anesthesia and surgical procedures will be followed. The aim of the study is to compare the pulmonary complication rates between patients who underwent recruitment and those who did not, and to examine the effects of factors such as age and gender on these complications via lung ultrasound.
Read the detailed description
The effect of the recruitment maneuver applied in the postoperative period on lung ventilation and atelectasis will be investigated via lung ultrasound. Recruitment is a technique performed to improve the oxygen levels of patients. Patients diagnosed with obstructive sleep apnea between the ages of 18-65 will be included in the study. The aim of the study is to compare atelectasis rates, pleural fascial fluid accumulation, lung compliance, pneumothorax findings between patients who underwent and did not undergo recruitment with lung ultrasound. In addition, to examine the effects of factors such as age and gender on these complications with lung ultrasound. Our study is a prospective, single-center, control group clinical trial to be conducted on patients diagnosed with obstructive sleep apnea syndrome (OSA). Patients between the ages of 18-65, classified as American Society of Anesthesia I-III, and diagnosed with Obstructive Sleep Apnea (polysomnography or STOP-BANG score ≥3) will be included in the study. Written informed consent will be obtained from the patients before the surgical procedure. Patients to be excluded from the study will include American Society of Anesthesia class IV and above patients, those with a history of neuromuscular disease, patients requiring cardiac surgery, and patients requiring urgent surgical intervention.
Patients will be randomly divided into three groups by computer-based program: Group 1: A fixed 5 cmH2O post expiratory positive end-expiratory pressure will be applied. Group 2: In addition to the fixed positive end-expiratory pressure, a recruitment maneuver will be performed at the end of surgery before extubation by giving 6 breaths with a tidal volume at 2 times the vital capacity, an inspiration/expiration ratio of 1/1, and a lung plateau pressure of < 35 cmH2O. Group 3: In addition to the fixed positive end-expiratory pressure, a recruitment maneuver will be performed at the end of surgery by giving 6 breaths in the right and left lateral decubitus positions before extubation. All patients' preoperative demographic data, apnea device usage, chest X-ray, total anesthesia duration, surgical duration, drugs used and their doses, ventilation parameters (tidal volume, positive end-expiratory pressure, airway peak pressure), fluid balance, surgical procedure type, patient position data will be recorded. Hemodynamic parameters, oxygen, respiratory exercise and bronchodilator requirements of patients taken to the recovery unit will be recorded. Lung A line and B line scores will be evaluated separately as 8 zones while performing lung ultrasonography of all patients. Plasm points, air bronchogram findings, pleural sliding movements will be recorded for each zone. In these follow-ups, saturation, hemodynamic parameters, respiratory exercise, bronchodilator requirement, intubation requirement, unplanned intensive care admission, hospital stay duration will also be recorded.
- Being tested
- Lung Recruitment Maneuver, Positional Lung Recruitment Maneuver
- Keywords
- Postoperative Pulmonary Atelectases, lung ultrasound score, recruitment maneuver
- Medical subject headings
- Pulmonary Atelectasis
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Lung Recruitment ManeuverOther
Lung Recruitment Maneuver (LRM) is a method that allows the alveoli to reopen by applying high positive pressure in order to prevent or treat alveolar collapse (atelectasis) that develops during or after anesthesia. LRM improves oxygenation by increasing functional residual capacity. Clinical studies have shown that LRM increases oxygenation levels, reduces areas of atelectasis, and shortens hospital stay. In this study, the effects of different recruitment maneuvers on postoperative atelectasis will be evaluated. In this group, just before extubation, the patients in this group will be given 6 breaths with a tidal volume of 2 times the vital capacity, an inspiratory/expiratory ratio of 1/1 and a lung plateau pressure of < 35 cmH2O, and a recruitment maneuver will be performed at the end of the surgery.
Positional Lung Recruitment ManeuverOther
Lung Recruitment Maneuver (LRM) is a method that allows the alveoli to reopen by applying high positive pressure in order to prevent or treat alveolar collapse (atelectasis) that develops during or after anesthesia. LRM improves oxygenation by increasing functional residual capacity. Clinical studies have shown that LRM increases oxygenation levels, reduces areas of atelectasis, and shortens the length of hospital stay. In this study, the effects of different recruitment maneuvers on postoperative atelectasis will be evaluated. Patients in this group will be placed in the right and then left lateral decubitus position before extubation at the end of surgery and a recruitment maneuver will be performed by giving 6 breaths in each position, with a tidal volume twice the vital capacity, a 1/1 inspiratory/expiratory ratio, and a lung plateau pressure < 35 cmH2O.
| Study group | Role | What they receive |
|---|---|---|
| Group 1- control | No intervention | The patient will be ventilated throughout the surgery by applying 5 cmH2O post expiratory positive end-expiratory pressure. Lung ultrasound will be performed on the patients before surgery, 5 minutes after mechanical ventilation after orotracheal intubation, at the end of surgery and 5 minutes after extubation. The lung will be evaluated in 8 regions. These will be evaluated as upper and lower in the mid-clavicular line, upper and lower in the anterior axillary line, upper and lower in the posterior axillary line and Plaps point. It will be evaluated by calculating the modified Lung Ultrasound Score (LUSS) to detect ventilation loss. Higher scores in LUSS indicate more severe ventilation loss. The degree of deaeration will be evaluated between 0 and 3. , 0 less than 3 B line; ≥3 B lines indicate 1, greater than 5 and confluent B lines indicate 2, and multiple confluent B lines or multiple subpleural consolidations separated by a thickened or irregular pleural line indicate 3. |
| Group 2 | Active comparator | The ventilation strategy of the patients in this group will be the same as in group 1. In contrast, just before extubation, the patients in this group will be given 6 breaths with a tidal volume of 2 times the vital capacity, an inspiratory/expiratory ratio of 1/1 and a lung plateau pressure of < 35 cmH2O, and a recruitment maneuver will be performed at the end of the surgery. All patients will undergo lung ultrasound in the defined lung zones and at the specified times, as described in group 1, and a modified Lung Ultrasound score will be evaluated. Receives: Other: Lung Recruitment Maneuver |
| Group 3 | Active comparator | The ventilation strategy of the patients in this group will be the same as in group 1. In addition to positive end-expiratory pressure, the patient will be placed in the right and then left lateral decubitus position before extubation at the end of the surgery and a recruitment maneuver will be performed by giving 6 breaths in each position with a tidal volume twice the vital capacity, a 1/1 inspiratory/expiratory ratio and a lung plateau pressure < 35 cmH2O. All patients will undergo lung ultrasound in defined lung regions and at specified times, as defined in group 1, and a modified Lung Ultrasound score will be evaluated. Receives: Other: Positional Lung Recruitment Maneuver |
What is being measured
The primary outcome is the main question the study is designed to answer.
pulmonary complications underwent recruitment maneuver
The primary outcome of the study was to compare the pulmonary complication rates between patients who underwent the recruitment maneuver and those who did not by lung ultrasound. Pulmonary complications were assessed by using the modified lung ultrasound score (LUSS). Higher scores on the LUSS indicated more severe ventilation loss. The degree of deaeration was assessed from 0 to 3. , Less than 3 B lines; ≥3 B lines were rated as 1, greater than 5 and confluent B lines were rated as 2, and multiple confluent B lines separated by a thickened or irregular pleural line or multiple subpleural consolidations were rated as 3.
Measured: 10 minutes before the start of surgery until 10 minutes after the end of surgery
Secondary outcomes (1)
Pulmonary Complications with Different Recruitment Maneuver Techniques
The secondary outcome is to compare the pulmonary complication rates between patients who received different recruitment maneuver techniques. To compare the postoperative pulmonary complication rates of parameters such as age, gender, and body mass index. Pulmonary complications will be assessed by performing the modified lung ultrasound score (LUSS). Higher scores on the LUSS indicate more severe ventilation loss. The degree of deaeration will be assessed from 0 to 3. , Less than 3 B lines; ≥3 B lines indicate 1, greater than 5 and confluent B lines indicate 2, and multiple confluent B lines separated by thickened or irregular pleural lines or multiple subpleural consolidations indicate 3.
Measured: 10 minutes before the start of surgery until 10 minutes after the end of surgery
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jul 2025
- Study start25 Jul 2025 (estimated)
- Primary completion20 Jun 2026 (estimated)
- Study completion1 Jul 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Postoperative AtelectasisStudies of the same condition, open and under way.
- More trials run by Istanbul University - CerrahpasaThe 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
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Crossover
- Masking
- Single blind
- Who is masked
- Care provider
- Enrolment
- 66 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Istanbul University - Cerrahpasa
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Münevver Kayhan, Istanbul University - Cerrahpasa
- Investigators
- Ayse Cigdem Tutuncu, Professor, Study chair, Istanbul University-Cerrahpasa, Cerrahpasa Medicine of FacultyMunevver Kayhan, Lecturer Doctor, Principal investigator, Istanbul University-Cerrahpasa, Cerrahpasa Medicine of FacultyPinar Kendigelen, Professor Doctor, Principal investigator, Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07061002
- Sponsor's protocol ID
- ctf-osas-recruitment-01
- Status last verified
- Jul 2025
- First submitted
- 2 Jul 2025
- Last updated
- 11 Jul 2025
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Touw HR, Schuitemaker AE, Daams F, van der Peet DL, Bronkhorst EM, Schober P, Boer C, Tuinman PR. Routine lung ultrasound to detect postoperative pulmonary complications following major abdominal surgery: a prospective observational feasibility study. Ultrasound J. 2019 Sep 16;11(1):20. doi: 10.1186/s13089-019-0135-6.
PubMed 31523784Canet J, Hardman J, Sabate S, Langeron O, Abreu MG, Gallart L, Belda J, Markstaller K, Pelosi P, Mazo V. PERISCOPE study: predicting post-operative pulmonary complications in Europe. Eur J Anaesthesiol. 2011 Jun;28(6):459-61. doi: 10.1097/EJA.0b013e328344be2d. No abstract available.
PubMed 21544025
Study at a glance
From the registry record, last updated by the sponsor on 11 Jul 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Recruitment Effectiveness in Patients With Obstructive Sleep Apnea Syndrome Using Lung Ultrasound
- ClinicalTrials.gov ID
- NCT07061002
- Acronym / sponsor ID
- ctf-osas-recruitment-01
- Keywords
- Postoperative Pulmonary Atelectases, lung ultrasound score, recruitment maneuver
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 66 participants (estimated)
- Lead sponsor
- Istanbul University - CerrahpasaUniversity, hospital or other
- Study start
- 25 Jul 2025 (estimated)
- Primary completion
- 20 Jun 2026 (estimated)
- Study completion
- 1 Jul 2026 (estimated)
- First posted
- 11 Jul 2025 (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.
Patients with obstructive sleep apnea syndrome are at higher risk for respiratory complications after surgery. Oxygen depletion and respiratory distress are common in patients with obstructive sleep apnea syndrome. In this study, the effectiveness of the recruitment maneuver applied in the postoperative period will be investigated via lung ultrasound. Recruitment is a technique performed to improve the oxygen levels of patients. Patients diagnosed with obstructive sleep apnea syndrome between the ages of 18-65 will be included in the study and anesthesia and surgical procedures will be followed. The aim of the study is to compare the pulmonary complication rates between patients who underwent recruitment and those who did not, and to examine the effects of factors such as age and gender on these complications via lung ultrasound.
Detailed description
The effect of the recruitment maneuver applied in the postoperative period on lung ventilation and atelectasis will be investigated via lung ultrasound. Recruitment is a technique performed to improve the oxygen levels of patients. Patients diagnosed with obstructive sleep apnea between the ages of 18-65 will be included in the study. The aim of the study is to compare atelectasis rates, pleural fascial fluid accumulation, lung compliance, pneumothorax findings between patients who underwent and did not undergo recruitment with lung ultrasound. In addition, to examine the effects of factors such as age and gender on these complications with lung ultrasound. Our study is a prospective, single-center, control group clinical trial to be conducted on patients diagnosed with obstructive sleep apnea syndrome (OSA). Patients between the ages of 18-65, classified as American Society of Anesthesia I-III, and diagnosed with Obstructive Sleep Apnea (polysomnography or STOP-BANG score ≥3) will be included in the study. Written informed consent will be obtained from the patients before the surgical procedure. Patients to be excluded from the study will include American Society of Anesthesia class IV and above patients, those with a history of neuromuscular disease, patients requiring cardiac surgery, and patients requiring urgent surgical intervention.
Patients will be randomly divided into three groups by computer-based program: Group 1: A fixed 5 cmH2O post expiratory positive end-expiratory pressure will be applied. Group 2: In addition to the fixed positive end-expiratory pressure, a recruitment maneuver will be performed at the end of surgery before extubation by giving 6 breaths with a tidal volume at 2 times the vital capacity, an inspiration/expiration ratio of 1/1, and a lung plateau pressure of < 35 cmH2O. Group 3: In addition to the fixed positive end-expiratory pressure, a recruitment maneuver will be performed at the end of surgery by giving 6 breaths in the right and left lateral decubitus positions before extubation. All patients' preoperative demographic data, apnea device usage, chest X-ray, total anesthesia duration, surgical duration, drugs used and their doses, ventilation parameters (tidal volume, positive end-expiratory pressure, airway peak pressure), fluid balance, surgical procedure type, patient position data will be recorded. Hemodynamic parameters, oxygen, respiratory exercise and bronchodilator requirements of patients taken to the recovery unit will be recorded. Lung A line and B line scores will be evaluated separately as 8 zones while performing lung ultrasonography of all patients. Plasm points, air bronchogram findings, pleural sliding movements will be recorded for each zone. In these follow-ups, saturation, hemodynamic parameters, respiratory exercise, bronchodilator requirement, intubation requirement, unplanned intensive care admission, hospital stay duration will also be recorded.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Crossover
- Masking
- Single blind (care provider)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Group 1- control | No intervention | –The patient will be ventilated throughout the surgery by applying 5 cmH2O post expiratory positive end-expiratory pressure. Lung ultrasound will be performed on the patients before surgery, 5 minutes after mechanical ventilation after orotracheal intubation, at the end of surgery and 5 minutes after extubation. The lung will be evaluated in 8 regions. These will be evaluated as upper and lower in the mid-clavicular line, upper and lower in the anterior axillary line, upper and lower in the posterior axillary line and Plaps point. It will be evaluated by calculating the modified Lung Ultrasound Score (LUSS) to detect ventilation loss. Higher scores in LUSS indicate more severe ventilation loss. The degree of deaeration will be evaluated between 0 and 3. , 0 less than 3 B line; ≥3 B lines indicate 1, greater than 5 and confluent B lines indicate 2, and multiple confluent B lines or multiple subpleural consolidations separated by a thickened or irregular pleural line indicate 3. |
| Group 2 | Active comparator | Other: Lung Recruitment ManeuverThe ventilation strategy of the patients in this group will be the same as in group 1. In contrast, just before extubation, the patients in this group will be given 6 breaths with a tidal volume of 2 times the vital capacity, an inspiratory/expiratory ratio of 1/1 and a lung plateau pressure of < 35 cmH2O, and a recruitment maneuver will be performed at the end of the surgery. All patients will undergo lung ultrasound in the defined lung zones and at the specified times, as described in group 1, and a modified Lung Ultrasound score will be evaluated. |
| Group 3 | Active comparator | Other: Positional Lung Recruitment ManeuverThe ventilation strategy of the patients in this group will be the same as in group 1. In addition to positive end-expiratory pressure, the patient will be placed in the right and then left lateral decubitus position before extubation at the end of the surgery and a recruitment maneuver will be performed by giving 6 breaths in each position with a tidal volume twice the vital capacity, a 1/1 inspiratory/expiratory ratio and a lung plateau pressure < 35 cmH2O. All patients will undergo lung ultrasound in defined lung regions and at specified times, as defined in group 1, and a modified Lung Ultrasound score will be evaluated. |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Patients aged 18-65
- American Society of Anesthesia I-III
- Patients with consent to participate
- Patients with preoperative OSA diagnosis (polysomnography or STOP-BANG≥3)
Key exclusion criteria (7 listed)
- American Society of Anesthesia >IV
- Patients planned for postoperative intensive care follow-up 3. Cardiac surgery
- Anesthesia outside the operating room
- History of neuromuscular disease
- Emergency surgical application
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 |
|---|---|---|
| Lung Recruitment ManeuverLung Recruitment Maneuver (LRM) is a method that allows the alveoli to reopen by applying high positive pressure in order to prevent or treat alveolar collapse (atelectasis) that develops during or after anesthesia. LRM improves oxygenation by increasing functional residual capacity. Clinical studies have shown that LRM increases oxygenation levels, reduces areas of atelectasis, and shortens hospital stay. In this study, the effects of different recruitment maneuvers on postoperative atelectasis will be evaluated. In this group, just before extubation, the patients in this group will be given 6 breaths with a tidal volume of 2 times the vital capacity, an inspiratory/expiratory ratio of 1/1 and a lung plateau pressure of < 35 cmH2O, and a recruitment maneuver will be performed at the end of the surgery. | Other | Group 2 |
| Positional Lung Recruitment ManeuverLung Recruitment Maneuver (LRM) is a method that allows the alveoli to reopen by applying high positive pressure in order to prevent or treat alveolar collapse (atelectasis) that develops during or after anesthesia. LRM improves oxygenation by increasing functional residual capacity. Clinical studies have shown that LRM increases oxygenation levels, reduces areas of atelectasis, and shortens the length of hospital stay. In this study, the effects of different recruitment maneuvers on postoperative atelectasis will be evaluated. Patients in this group will be placed in the right and then left lateral decubitus position before extubation at the end of surgery and a recruitment maneuver will be performed by giving 6 breaths in each position, with a tidal volume twice the vital capacity, a 1/1 inspiratory/expiratory ratio, and a lung plateau pressure < 35 cmH2O. | Other | Group 3 |
Primary outcome
pulmonary complications underwent recruitment maneuver
Time frame: 10 minutes before the start of surgery until 10 minutes after the end of surgery
The primary outcome of the study was to compare the pulmonary complication rates between patients who underwent the recruitment maneuver and those who did not by lung ultrasound. Pulmonary complications were assessed by using the modified lung ultrasound score (LUSS). Higher scores on the LUSS indicated more severe ventilation loss. The degree of deaeration was assessed from 0 to 3. , Less than 3 B lines; ≥3 B lines were rated as 1, greater than 5 and confluent B lines were rated as 2, and multiple confluent B lines separated by a thickened or irregular pleural line or multiple subpleural consolidations were rated as 3.
1 secondary outcome
Pulmonary Complications with Different Recruitment Maneuver Techniques
Time frame: 10 minutes before the start of surgery until 10 minutes after the end of surgery
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Jul 2025.
- Results publication: PubMed 31523784Touw HR, Schuitemaker AE, Daams F, van der Peet DL, Bronkhorst EM, Schober P, Boer C, Tuinman PR. Routine lung ultrasound to detect postoperative pulmonary complications following major abdominal surgery: a prospective observational feasibility study. Ultrasound J. 2019 Sep 16;11(1):20. doi: 10.1186/s13089-019-0135-6.
- Results publication: PubMed 21544025Canet J, Hardman J, Sabate S, Langeron O, Abreu MG, Gallart L, Belda J, Markstaller K, Pelosi P, Mazo V. PERISCOPE study: predicting post-operative pulmonary complications in Europe. Eur J Anaesthesiol. 2011 Jun;28(6):459-61. doi: 10.1097/EJA.0b013e328344be2d. No abstract available.
- 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.
Ayse Cigdem Tutuncu, Professor study chair
Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty
Munevver Kayhan, Lecturer Doctor principal investigator
Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty
Pinar Kendigelen, Professor Doctor principal investigator
Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Lung Recruitment Maneuver and Positional Lung Recruitment Maneuver in people with Postoperative Atelectasis and Lung Ultrasonography Score, run by Istanbul University - Cerrahpasa 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 4 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: opening soon, as of the sponsor's last update on 11 Jul 2025. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Munevver Kayhan, Lecturer Doctor (+905057983044, munevver.kayhan@iuc.edu.tr), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
pulmonary complications underwent recruitment maneuver (time frame: 10 minutes before the start of surgery until 10 minutes after the end of surgery). 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 NCT07061002, which also lists 2 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 11 Jul 2025; AzTrials last refreshed its copy on 7 Nov 2026.