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Effects of Ultrasound-guided Recruitment Manoeuvres on Postoperative Pulmonary Complications in OSA Patients Undergoing Total Laparoscopic Hysterectomy

NCT07362680 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2026-01-23

No results posted yet for this study

Summary

This study aims to evaluate the lung-protective effects of ultrasound-guided lung recruitment maneuvers in patients with OSA undergoing total laparoscopic hysterectomy and to explore the efficacy of EELV measurement in assessing the effectiveness of these maneuvers.

Conditions

  • Total Laparoscopic Hysterectomy
  • Atelectasis, Postoperative

Interventions

PROCEDURE

the sustained inflation recruitment maneuver

The APL valve on the anaesthesia machine will be adjusted to 30 cmH₂O, and the rapid oxygen inflow valve will be pressed to increase the pressure to the maximum, maintaining the pressure for 30 seconds.

PROCEDURE

the incremental PEEP recruitment maneuver

Starting from 5 cmH₂O, PEEP will be titrated upwards in 5 cmH₂O increments every 30 seconds until a maximum of 30 cmH₂O is reached. After maintaining for 40 seconds, PEEP will be decreased by 5 cmH₂O every 30 seconds until it returns to the pre-recruitment level.

PROCEDURE

the Ultrasound-guided recruitment maneuver

Lung ultrasound will be performed on patients. If any lung region has an LUS score ≥ 2, ultrasound-guided RM will be performed; otherwise, no operation will be conducted. After the ultrasound examination, the probe will be positioned over the lung region exhibiting the most severe aeration loss (highest LUS) to guide the RMs. The ventilator will be set to pressure-controlled ventilation (PCV), maintaining the inspiratory pressure at 40 cmH₂O. PEEP will be gradually increased from 5 cmH₂O, with increments of 5 cmH₂O every 5-10 seconds, until ultrasound shows no atelectatic areas. The pressure will be maintained at 40 cmH₂O for 40 seconds. An airway pressure ceiling of 40 cmH₂O was established, and the pressure and the time used for the RM will be recorded.

Sponsors & Collaborators

  • The First Affiliated Hospital of Xinxiang Medical College

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-05-02
Primary Completion
2026-08-31
Completion
2026-08-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07362680 on ClinicalTrials.gov