Effects of Different Fresh Gas Flows on Carboxyhemoglobin Levels and Postoperative Patient Outcomes in Pediatric Cardiovascular Surgery

NCT ID: NCT06097806

Last Updated: 2024-05-21

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

RECRUITING

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-06-01

Study Completion Date

2025-11-01

Brief Summary

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Low flow anesthesia; It is an anesthesia practice in which, after absorbing at least 50% of the exhaled air and carbon dioxide (CO2) using a semi-closed rebreathing system, the unused anesthetic gases are mixed with a certain amount of fresh gas and then completely or partially returned to the patient in the next inspiration. Theoretically, when low flow anesthesia is compared to high or normal flow anesthesia; it is known to have advantages such as using less inhalation agent, preserving mucociliary activity, preventing microatelectasis, preserving the amount of moisture, and reducing temperature loss.

In studies conducted in different fresh gas flows, it has been observed that CO, which is thought to accumulate in the body by rebreathing in a closed circuit, increases as a result of the chemical interaction and dry CO2 absorbent. However, there is no evidence in these studies that low-flow anesthesia increases CO accumulation and alters hemodynamics.

In our clinic, low-flow and high-flow anesthesia technics are both being used. In this study, we aimed to evaluate the effects of high- and low-flow sevoflurane anesthesia applied with a closed system on perioperative carboxyhemoglobin (COHb) levels and hemodynamic system in pediatric cardiovascular surgery cases.

Detailed Description

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Conditions

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Low Flow Anesthesia High Flow Anesthesia

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Study Groups

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Low-flow anesthesia group

In this group, ventilation parameters is adjusted to have fresh gas flow/minute ventilation ratio below 0.5

low and high flow

Intervention Type OTHER

low and high flow anesthesia are both being used. The effects of different gas flows will be evaluated.

High-flow anesthesia group

In this group, ventilation parameters is adjusted to have fresh gas flow/minute ventilation ratio above 1.0

low and high flow

Intervention Type OTHER

low and high flow anesthesia are both being used. The effects of different gas flows will be evaluated.

Interventions

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low and high flow

low and high flow anesthesia are both being used. The effects of different gas flows will be evaluated.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patients between the ages of 2 months and 7 years undergoing elective cardiac surgery
* American Society of Anesthesiology (ASA) score II ve III patients

Exclusion Criteria

* Patients undergoing emergency surgery
* Patients who need mechanical ventilation or any respiratory support before the operation
* Patients with left to right shunt
* cyanotic patients
* Patients younger than 2 months and older than 7 years
Minimum Eligible Age

2 Months

Maximum Eligible Age

7 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Başakşehir Çam & Sakura City Hospital

OTHER_GOV

Sponsor Role lead

Responsible Party

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Selin Saglam

Specialist

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Basaksehir Cam and Sakura City Hospital

Istanbul, , Turkey (Türkiye)

Site Status RECRUITING

Countries

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Turkey (Türkiye)

Central Contacts

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Hazal Ozsagiroglu

Role: CONTACT

+905387284700

Selin Saglam

Role: CONTACT

+905557198756

Facility Contacts

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Selin Sağlam

Role: primary

Other Identifiers

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Başakşehir Çam and Sakura

Identifier Type: -

Identifier Source: org_study_id

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