Optimal Positive End-expiratory Pressure (PEEP) in Prone Position During Spine Surgery

NCT ID: NCT04024410

Last Updated: 2021-10-13

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

COMPLETED

Total Enrollment

20 participants

Study Classification

OBSERVATIONAL

Study Start Date

2019-06-03

Study Completion Date

2021-02-22

Brief Summary

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Background:

There is a lack of studies regarding Optimal (best) positive end-expiratory pressure (PEEP) in prone position during surgery, and its relation with optimal PEEP in supine position.

Hypothesis:

In patients undergoing scheduled spinal surgery, optimal PEEP in the prone position is lower than optimal PEEP in the supine position.

Aims:

To assess the difference optimal PEEP in supine vs. prone positions in patients undergoing spine surgery.

To evaluate the changes in optimal PEEP in prone position throughout the surgical procedure.

Methods:

Observational study, one center. Main variable: optimal PEEP. Secondary variables: PaO2, pCO2 and dynamic compliance (Crd) in prone and supine position.

Detailed Description

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Recruitment: Patients scheduled for spine surgery were Main outcome: Optimal PEEP determined after a pulmonary recruitment manoeuvre in supine and in prone position and every hour during the surgery in prone position.

Secondary outcomes: Pulmonary compliance, blood gas analysis and hemodynamic parameters

Conditions

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Anesthesia Surgery

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Interventions

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Evaluation of PEEP in prone position

Assessment of optimal Positive End-Expiratory Pressure (PEEP) in patients undergoing scheduled spine surgery in prone position.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Age ≥18 years.
* Spine prone surgery lasting ≥2 hours.
* Absence of known pulmonary pathology.

Exclusion Criteria

* Pregnancy or lactation.
* Contraindication to alveolar recruitment maneuvers (risk of barotrauma, hemodynamic instability).
* Body mass index (BMI) \>35.
* Heart failure defined as IC \<2.5 L/min/m2 and/or inotropic support requirements prior to surgery.
* Diagnosis or suspicion of intracranial hypertension (intracranial pressure \>15 mmHg).
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Parc de Salut Mar

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lluís Gallart, Dr

Role: PRINCIPAL_INVESTIGATOR

Hospital del Mar (Barcelona, Spain)

Locations

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Hospital del Mar

Barcelona, , Spain

Site Status

Countries

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Spain

References

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Other Identifiers

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2018/8270/I

Identifier Type: -

Identifier Source: org_study_id