Evaluation of Recruitment Effectiveness in Patients With Obstructive Sleep Apnea Syndrome Using Lung Ultrasound

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. 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.

Conditions

• Postoperative Atelectasis
• Lung Ultrasonography Score
• Recruitment

Interventions

OTHER

Lung Recruitment Maneuver

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.

OTHER

Positional Lung Recruitment Maneuver

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.

Sponsors & Collaborators

• Istanbul University - Cerrahpasa

  lead OTHER

Principal Investigators

• Ayse Cigdem Tutuncu, Professor · Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty

• Munevver Kayhan, Lecturer Doctor · Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty

• Pinar Kendigelen, Professor Doctor · Istanbul University-Cerrahpasa, Cerrahpasa Medicine of Faculty

Study Design

Allocation

NA

Purpose

DIAGNOSTIC

Masking

SINGLE

Model

CROSSOVER

Eligibility

Min Age

18 Years

Max Age

65 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-07-25

Primary Completion

2026-06-20

Completion

2026-07-01

Countries

• Turkey (Türkiye)

Study Locations