Observation of B-lines in Pulmonary Echography, During Open Abdominal Surgery

NCT ID: NCT06157138

Last Updated: 2023-12-27

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

62 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-12-26

Study Completion Date

2024-12-31

Brief Summary

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There is no a reliable marker of intraoperative fluid excess or overload. The use of lung ultrasound in other settings, such as emergency room and critical care patients, helps us to determine if a patient has a condition of augmented intrathoracic fluid, that could be related to several circumstances, such as fluid overload, but also to heart failure, in example.

Nevertheless, there is no information regarding the basal incidence of this finding, to ascertain if could be eventually used as a potential marker of fluid overload. This protocol looks for the incidence of the finding of B-Lines, which are related to fluid overload, in patients undergoing open abdominal surgery.

Detailed Description

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The presence of B-lines will be observed in 4 spaces at each evaluation: Anterior-superior, and infero-lateral, by each side.

The times of evaluation will be prior to intubation, after intubation, every one hour of surgery, at the end of the surgery prior to extubation, and after 2 hours in the postoperative care unit.

Other variables addressed will be the vital signs, parameters related to a diminished intravascular status (ie, pulse pressure variability), central venous pressure, volume changes (reposition, bleeding, diuresis), and requirements of blood products.

A correlation with baseline characteristics of patients will be observed; nevertheless, this study is directed as primary endpoint to evaluate the incidence of the B-lines in echography, and the sample size was calculated following this endpoint.

Conditions

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Open Abdominal Surgery Lung Ultrasound

Keywords

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lung ultrasound B-Lines

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Patients undergoing open abdominal surgery

Patients older than 18 years undergoing open abdominal surgery. They will be followed by a protocol of pulmonary echography during and after surgery in the postoperative care unit

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* Patients scheduled to open abdominal surgery Older than 18 years.

Exclusion Criteria

* Previous thoracic surgery, BMI over 30 kg/m2 Baseline respiratory alterations related to preoperative supplementary oxygen requirements Evident malformations of the thoracic wall If the position required for the surgery does not allow the echographic windows required for the protocol
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Pontificia Universidad Catolica de Chile

OTHER

Sponsor Role lead

Responsible Party

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Augusto Rolle

MD, MSc

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Augusto Rolle, MD

Role: PRINCIPAL_INVESTIGATOR

Pontificia Universidad Catolica de Chile

Locations

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Hospital ClĂ­nico UC-Christus

Santiago, , Chile

Site Status RECRUITING

Countries

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Chile

Central Contacts

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Augusto Rolle, MD

Role: CONTACT

Phone: 56+95504 3414

Email: [email protected]

Ana M Oliveros, MD

Role: CONTACT

Phone: 56+95504 3414

Email: [email protected]

Facility Contacts

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Augusto Rolle, MD

Role: primary

Other Identifiers

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230209001

Identifier Type: -

Identifier Source: org_study_id