Skip to content

Effects of Anesthesia on Atelectasis

EVALUATION of PEROPERATIVE ATELECTASIS with LUNG ULTRASOUND SCORE in GENERAL ANAESTHESIA MAINTENANCE METHODS

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06790901
Enrollment
90
Registered
2025-01-24
Start date
2023-09-15
Completion date
2025-01-12
Last updated
2025-01-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atelectasis, General Aneshesia

Keywords

Lung Ultrasound Score, general anesthesia, Atelectasis, Inhalation agents

Brief summary

We know that respiratory functions of patients are affected under general anaesthesia. Although there are many underlying causes of ventilation-perfusion mismatch in the airways, the main cause is atelectasis during general anaesthesia. Atelectasis occurs in almost all patients receiving general anaesthesia. The main cause of atelectasis is the loss of muscle tone during general anaesthesia. Postoperative atelectasis was described in the last century. It is defined as the closure of the alveoli due to a decrease in inspiratory force and collapse of the lung and the resulting loss of aeration. Inhalation anaesthetics have been shown to cause hypoxic pulmonary vasoconstriction in studies. However, not all inhalation anaesthetics affect the airways in the same way. In patients who will undergo surgical procedures under different general anaesthesia maintenance methods, conditions that disrupt the ventilation-perfusion balance in the lung peroperatively can be diagnosed and monitored early, easily and inexpensively by lung ultrasonography. Lung ultrasound is a noninvasive, reliable, reliable, radiation-free imaging method that provides instantaneous imaging at the bedside. Lung ultrasound score is a scoring system that provides scoring of the loss of ventilation in the lung. For this purpose, it was aimed to divide both lung tissues into 12 areas and to give a score between 0 and 3 points and to show the severity of the loss of aeration according to the resulting total score.

Interventions

PROCEDURELUNG ULTRASOUND

Determination of atelectsis By Lung Ultrasound Score

Sponsors

Zonguldak Bulent Ecevit University
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* 18-65 years old ASA I-II Surgical procedure time between 2 hours and 5 hours in supine position Patients who will undergo rhinoplasty, septorhinoplasty operation Patients whose consent was obtained with an informed consent form

Exclusion criteria

* Those with a history of malignant hyperthermia, * People with alcohol or drug addiction, * Presence of dementia or confusion, * Uncooperative patients, * Those with respiratory disease, * Those with coronary artery disease, congestive heart failure, * Patients with unstable blood pressure, * Significant anaemia, liver or kidney disease, * Women during pregnancy or lactation, * Allergy to anaesthetic agents, * Body mass index (BMI) \>30 kg/m2, * Those with sepsis or bacterial infection, Body temperature below 35°C and above 38°C at control value

Design outcomes

Primary

MeasureTime frame
Peroperative Atelectasisfrom induction to postoperative 1st hour

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026