Please note that the copy function is not enabled for this field.
If you wish to
modify
existing outcomes, please copy and paste the current outcome text into the Update field.
LOGIN
CREATE ACCOUNT
LOGIN
CREATE ACCOUNT
MY TRIALS
REGISTER TRIAL
FAQs
HINTS AND TIPS
DEFINITIONS
Trial Review
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this
information for consumers
Download to PDF
Trial registered on ANZCTR
Registration number
ACTRN12619000206123
Ethics application status
Approved
Date submitted
30/01/2019
Date registered
12/02/2019
Date last updated
12/02/2019
Date data sharing statement initially provided
12/02/2019
Date results information initially provided
12/02/2019
Type of registration
Retrospectively registered
Titles & IDs
Public title
Measurement of severity of aortic stenosis in patients using aortic acceleration time
Query!
Scientific title
Aortic acceleration time in patients with aortic stenosis under general anaesthesia
Query!
Secondary ID [1]
297190
0
None
Query!
Universal Trial Number (UTN)
Query!
Trial acronym
Query!
Linked study record
Query!
Health condition
Health condition(s) or problem(s) studied:
Aortic stenosis
311242
0
Query!
Condition category
Condition code
Cardiovascular
309862
309862
0
0
Query!
Other cardiovascular diseases
Query!
Intervention/exposure
Study type
Observational
Query!
Patient registry
True
Query!
Target follow-up duration
1
Query!
Target follow-up type
Hours
Query!
Description of intervention(s) / exposure
Retrospective analysis of the continuous wave Doppler signal in patients with aortic stenosis having cardiac surgery, including the aortic acceleration time from our echocardiography database Prosolve. No input from patients is required including repeat scanning, repeat investigations or consent to access records.
Query!
Intervention code [1]
313446
0
Not applicable
Query!
Comparator / control treatment
No control group
Query!
Control group
Uncontrolled
Query!
Outcomes
Primary outcome [1]
318806
0
Aortic acceleration time as assessed by audit of Prosolve database
Query!
Assessment method [1]
318806
0
Query!
Timepoint [1]
318806
0
Retrospective analysis of echocardiograms in patient with aortic stenosis
Query!
Secondary outcome [1]
366116
0
Severity of aortic stenosis using AAT measured with echocardiography
Query!
Assessment method [1]
366116
0
Query!
Timepoint [1]
366116
0
Retrospective analysis of hospital data
Query!
Eligibility
Key inclusion criteria
Patients with aortic stenosis having general anaesthesia for an aortic valve replacement where an intraoperative transesophageal echocardiogram was performed
Query!
Minimum age
18
Years
Query!
Query!
Maximum age
No limit
Query!
Query!
Sex
Both males and females
Query!
Can healthy volunteers participate?
No
Query!
Key exclusion criteria
Nil
Query!
Study design
Purpose
Screening
Query!
Duration
Cross-sectional
Query!
Selection
Defined population
Query!
Timing
Retrospective
Query!
Statistical methods / analysis
Query!
Recruitment
Recruitment status
Completed
Query!
Date of first participant enrolment
Anticipated
Query!
Actual
4/12/2015
Query!
Date of last participant enrolment
Anticipated
Query!
Actual
6/02/2019
Query!
Date of last data collection
Anticipated
Query!
Actual
6/02/2019
Query!
Sample size
Target
350
Query!
Accrual to date
Query!
Final
300
Query!
Recruitment in Australia
Recruitment state(s)
VIC
Query!
Funding & Sponsors
Funding source category [1]
301743
0
Hospital
Query!
Name [1]
301743
0
St. Vincent's Hospital, Melbourne
Query!
Address [1]
301743
0
45 Victoria Parade
Fitzroy 3065
Victoria
Australia
Query!
Country [1]
301743
0
Australia
Query!
Primary sponsor type
Individual
Query!
Name
Brian Cowie
Query!
Address
Department of Anaesthesia
St. Vincent's Hospital, Melbourne
Fitzroy 3065
Victoria
Australia
Query!
Country
Australia
Query!
Secondary sponsor category [1]
301485
0
None
Query!
Name [1]
301485
0
Query!
Address [1]
301485
0
Query!
Country [1]
301485
0
Query!
Ethics approval
Ethics application status
Approved
Query!
Ethics committee name [1]
302466
0
St. Vincent's Hospital, Melbourne HREC
Query!
Ethics committee address [1]
302466
0
HREC
St. Vincent's Hospital, Melbourne
45 Victoria Parade
Fitzroy 3065
Victoria, Australia
Query!
Ethics committee country [1]
302466
0
Australia
Query!
Date submitted for ethics approval [1]
302466
0
Query!
Approval date [1]
302466
0
04/12/2015
Query!
Ethics approval number [1]
302466
0
QA 109/15
Query!
Summary
Brief summary
Aortic valve replacement for aortic stenosis is a common procedure. Preoperative transthoracic echocardiography (TTE) and intraoperative transesophageal echocardiography (TOE) are commonly used to guide surgical decision making in the management of aortic stenosis. The maximum aortic valve jet velocity, mean gradient and aortic valve area and aortic acceleration time are normally used to grade the severity of aortic stenosis.
The aim of this study was to assess the validity of AAT and the ratio of AAT/ET as a reliable marker of the severity of aortic stenosis using intraoperative transesophageal echocardiography and to compare these findings to those obtained using preoperative transthoracic echocardiography in patients undergoing aortic valve replacement.
Query!
Trial website
Query!
Trial related presentations / publications
Query!
Public notes
Query!
Contacts
Principal investigator
Name
90318
0
Dr Brian Cowie
Query!
Address
90318
0
Department of Anaesthesia
St. Vincent's Hospital, Melbourne
41 Victoria Parade
Fitzroy 3065
Victoria
Australia
Query!
Country
90318
0
Australia
Query!
Phone
90318
0
+613 92882211
Query!
Fax
90318
0
Query!
Email
90318
0
[email protected]
Query!
Contact person for public queries
Name
90319
0
Dr Brian Cowie
Query!
Address
90319
0
Department of Anaesthesia
St. Vincent's Hospital, Melbourne
41 Victoria Parade
Fitzroy 3065
Victoria
Australia
Query!
Country
90319
0
Australia
Query!
Phone
90319
0
+613 92882211
Query!
Fax
90319
0
Query!
Email
90319
0
[email protected]
Query!
Contact person for scientific queries
Name
90320
0
Dr Brian Cowie
Query!
Address
90320
0
Department of Anaesthesia
St. Vincent's Hospital, Melbourne
41 Victoria Parade
Fitzroy 3065
Victoria
Australia
Query!
Country
90320
0
Australia
Query!
Phone
90320
0
+613 92882211
Query!
Fax
90320
0
Query!
Email
90320
0
[email protected]
Query!
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
Query!
No/undecided IPD sharing reason/comment
Query!
What supporting documents are/will be available?
No Supporting Document Provided
Doc. No.
Type
Citation
Link
Email
Other Details
Attachment
1244
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Embase
Aortic Acceleration Time and the Intraoperative Assessment of Aortic Stenosis.
2021
https://dx.doi.org/10.1053/j.jvca.2020.10.048
N.B. These documents automatically identified may not have been verified by the study sponsor.
Download to PDF