Contributions of Transesophageal Echocardiography in Liver Transplant Surgery

NCT ID: NCT05175534

Last Updated: 2023-02-21

Basic Information

• Recruitment Status: COMPLETED
• Total Enrollment: 32 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2016-01-30
• Study Completion Date: 2020-06-10

Brief Summary

The goal of this study is to describe the safety and impact of transesophageal echocardiography in instability episodes during liver transplantation, especially during reperfusion stage.

After institutional review board approval, this study was performed in Vall d´Hebron University Hospital including patients undergoing liver transplantation Interventions: peroperative transesophageal echocardiography A transesophageal echocardiography scan was performed in case of hemodynamic instability episodes, and immediately after vascular unclamping.

The investigators registered percentatge of patients with diastolic/systolic dysfunction, hypovolemia, vasodilatation, embolism and percentatge of patients with postreperfusion syndrome

Detailed Description

A TEE scan was performed in case of hemodynamic instability episodes defined by a decrease of 30% of the mean arterial pressure (MAP) during at least 1 min, and in all patients during immediate graft reperfusion phase and up 30 minutes.

The instability hemodynamic state was classified into four categories: diastolic failure, systolic failure, hypovolemia and vasodilatation.

The diastolic evaluation was performed at ME 4C view using pulsed doppler of the mitral and tricuspid valve at the level of the leaflet tips and tissue Doppler motion of the mitral and tricuspid annulus. The systolic evaluation was performed using tissue Doppler motion of the mitral and tricuspid annulus evaluating S´. Hypovolemia was registered such low filling pressures (mitral lateral E/e´<10 m/s), cardiac index < 2.5 l . min-1 . m-2 and close approximation of the papillary muscles in the TG Mid SAX view. Vasodilatation was registered such low filling pressures (mitral E/e´< 10 m/s) and CI >2.5 l. min-1 . m-2).

An assessment of cardiac filling volumes and contractility, were obtained at two levels: the mid-esophageal four-chamber view (ME 4C) to evaluate the interaction of left and right ventricles and detect possible venous air embolism; and in the trans-gastric mid short axis view (TG mid SAX), to evaluate left ventricular size for the diagnosis of hypovolemia secondary to hemorrhage or altered venous return due to surgical maneuvers on the liver, and segmental wall motion. If the TG mid SAX view was not possible due to the posterior retraction of the stomach during surgery, the ME 4C view, mid-esophageal two chamber view (ME 2C) and mid-esophageal long axis view (ME LAX) was used for the diagnosis of left ventricle systolic dysfunction, and mid-esophageal bicaval view (ME bicaval) was used for the volemia evaluation.

Conditions

Liver Transplant; Complications

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: RETROSPECTIVE

Interventions

monitoring

peroperative transesophageal echocardiography for monitoring in liver transplant surgery

Intervention Type: PROCEDURE

Eligibility Criteria

Inclusion Criteria

-

Exclusion Criteria

• None

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Hospital Universitari Vall d'Hebron Research Institute

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Susana González-Suárez, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Vall d´Hebron University Hospital

Locations

Susana González Suárez

Barcelona, Catalonia, Spain

Vall d´Hebron Research Institute VHIR

Barcelona, , Spain

Countries

Spain

References

Gonzalez-Suarez S, Corbett M, Hernandez-Martinez A. Impact of graft reperfusion on cardiac function assessed by transesophageal echocardiography during liver transplantation: an observational retrospective study. J Clin Monit Comput. 2024 Apr;38(2):301-311. doi: 10.1007/s10877-023-01110-5. Epub 2023 Nov 30.

Reference Type: DERIVED

PMID: 38032448 (View on PubMed)

Other Identifiers

PR(AG)511/2019

Identifier Type: -

Identifier Source: org_study_id