Ignite Creation Date:
2025-12-25 @ 4:46 AM
Ignite Modification Date:
2026-03-03 @ 12:41 AM
Study NCT ID:
NCT02818218
Status:
COMPLETED
Last Update Posted:
2025-08-07
First Post:
2016-04-11
Is NOT Gene Therapy:
True
Has Adverse Events:
True
Brief Title:
Superior Vena Cava and Its Relationship to Central Venous Pressure Measurements in Liver Transplantation
Sponsor:
The Cleveland Clinic
Organization:
Study Overview
Official Title:
Superior Vena Cava (SVC) Diameter and Collapsibility Index and Its Relationship to Central Venous Pressure (CVP) Measurements in Patients Undergoing Liver Transplantation
Status:
COMPLETED
Status Verified Date:
2025-08
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Consecutive patients undergoing liver transplant surgery will be included in the study. Before surgical incision, during the preanhepatic phase, during the anhepatic phase, during the postanhepatic phase and following closure of the deep fascial layer of the anterior abdominal wall simultaneous measurement of SVC diameter, SBC collapsibility index and CVP will be recorded.
Detailed Description:
Central venous pressure (CVP) measured invasively through a central venous catheter in the internal jugular vein or through a right atrial port of a pulmonary artery catheter is commonly used during liver transplant surgery. CVP measurements at the SVC-RA junction are a function of circulating blood volume, right ventricle function, intrathoracic pressure. CVP measurements can also be affected by the presence of tricuspid regurgitation. Because central venous pressure measurements are determined by several factors and do not predict the response to subsequent fluid bolus administration, they are considered "static measures" and are poor indicators of fluid responsiveness.
Given the entirely intrathoracic location of the superior vena cava (SVC), its diameter and collapsibility with positive pressure ventilation it is a potentially attractive method of non-invasively estimating CVP.
SVC diameter and collapsibility index, dynamic measures of fluid responsiveness have been successfully utilized as echocardiographic indices for fluid responsiveness in ventilated septic patients. Whether SVC collapsibility is correlated with CVP measurements in liver transplant patients is not known.
Consecutive patients undergoing liver transplant surgery will be included in the study. Before surgical incision, during the preanhepatic phase, during the anhepatic phase, during the postanhepatic phase and following closure of the deep fascial layer of the anterior abdominal wall simultaneous measurement of SVC diameter, SBC collapsibility index and CVP will be recorded.
Given the entirely intrathoracic location of the superior vena cava (SVC), its diameter and collapsibility with positive pressure ventilation it is a potentially attractive method of non-invasively estimating CVP.
SVC diameter and collapsibility index, dynamic measures of fluid responsiveness have been successfully utilized as echocardiographic indices for fluid responsiveness in ventilated septic patients. Whether SVC collapsibility is correlated with CVP measurements in liver transplant patients is not known.
Consecutive patients undergoing liver transplant surgery will be included in the study. Before surgical incision, during the preanhepatic phase, during the anhepatic phase, during the postanhepatic phase and following closure of the deep fascial layer of the anterior abdominal wall simultaneous measurement of SVC diameter, SBC collapsibility index and CVP will be recorded.
Study Oversight
Has Oversight DMC:
False
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: