İn This Study, Patients Undergoing Bariatric Surgery Will be Divided Into Two Groups. The Control Group Will Receive Normal-flow, While the Study Group Will Receive Low-flow Inhalational Anesthesia. The Aim is to Compare the Incidence of Postop Atelectasis-between the Two Groups Using USG Evaluation

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

NOT_YET_RECRUITING

Clinical Phase

NA

Total Enrollment

60 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-06-20

Study Completion Date

2026-01-31

Brief Summary

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This study is a clinical trial and its purpose is to evaluate the effect of low and normal flow anesthesia on atelectasis formation in patients undergoing bariatric surgery by ultrasonography.

In this study, lung ultrasounds and respiratory function tests will be performed on volunteers before and after surgery. These procedures are completely painless and safe.

No invasive procedure will be performed in the study; the methods used do not pose any additional risk other than existing treatment procedures.

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Detailed Description

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Conditions

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Atelectasis Pulmonary Complications Ultrasonography

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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Control group (group N) - Standard flow anesthesia

İnhalational anesthesia

Group Type ACTIVE_COMPARATOR

Inhalational anesthesia

Intervention Type OTHER

In Group D, patients undergoing bariatric surgery will receive low-flow inhalational anesthesia (0.5-1 L/min) with sevoflurane. The aim is to evaluate whether the reduced fresh gas flow rate decreases the incidence of postoperative atelectasis, assessed via pulmonary ultrasonography.

In Group N, patients undergoing bariatric surgery will receive standard-flow inhalational anesthesia (2-4 L/min) with sevoflurane. This group serves as the comparator to evaluate the impact of flow rate on postoperative atelectasis incidence.

İntervention group (Group D) - Low Flow Anesthesia

İnhalational anesthesia

Group Type EXPERIMENTAL

Inhalational anesthesia

Intervention Type OTHER

In Group D, patients undergoing bariatric surgery will receive low-flow inhalational anesthesia (0.5-1 L/min) with sevoflurane. The aim is to evaluate whether the reduced fresh gas flow rate decreases the incidence of postoperative atelectasis, assessed via pulmonary ultrasonography.

In Group N, patients undergoing bariatric surgery will receive standard-flow inhalational anesthesia (2-4 L/min) with sevoflurane. This group serves as the comparator to evaluate the impact of flow rate on postoperative atelectasis incidence.

Interventions

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Inhalational anesthesia

In Group D, patients undergoing bariatric surgery will receive low-flow inhalational anesthesia (0.5-1 L/min) with sevoflurane. The aim is to evaluate whether the reduced fresh gas flow rate decreases the incidence of postoperative atelectasis, assessed via pulmonary ultrasonography.

In Group N, patients undergoing bariatric surgery will receive standard-flow inhalational anesthesia (2-4 L/min) with sevoflurane. This group serves as the comparator to evaluate the impact of flow rate on postoperative atelectasis incidence.

Intervention Type OTHER

Other Intervention Names

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Normal flow inhalational anesthesia (Group N) Low flow inhalational anesthesia (Group D)

Eligibility Criteria

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Inclusion Criteria

* Will undergo Sleeve Gastrectomy surgery;
* 18-65 years old
* ASA III patients.

Exclusion Criteria

* Patients who do not give consent
* Patients with ASA 4 and above
* Those with serious respiratory comorbidities (interstitial lung disease, serious permanent lung diseases)
* Uncontrolled Hypertension, Diabetes Mellitus
* Under 18 and over 65 years of age
* Chronic renal failure, Liver failure
* CHF (EF\<30) will not be included in the study

Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No