Noninvasive Measurement of Cardiac Output in Pulmonary Hy... | NCT01606839

Studies
Noninvasive Measurement of Cardiac Output in Pulmonary Hypertension Using Inert Gas Rebreathing

NCT01606839

Sponsor

Medical University of Graz

Status

Completed

Last Update Posted

Feb 19, 2014Estimated

Enrollment

34Actual

Phase

Not provided

Conditions

Pulmonary Hypertension

Interventions

Not provided

Countries

Austria

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

No data available

No data is available for this block.

Derived Section

Miscellaneous Info Module

Version Holder

Status Module

Record Verification Date

Feb 2014

Overall Recruitment Status or Expanded Access Status

Completed

Last Known Status

Not provided

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

Feb 2012

Primary Completion Date

Feb 2014Actual

Completion Date

Feb 2014Actual

First Submitted Date

May 24, 2012

First Submission Date that Met QC Criteria

May 24, 2012

First Posted Date

May 28, 2012Estimated

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Feb 18, 2014

Last Update Posted Date

Feb 19, 2014Estimated

Name	Class
Ludwig Boltzmann Gesellschaft	OTHER

Oversight Module

Has Data Monitoring Committee (DMC)

Is FDA Regulated Drug

Not provided

Is FDA Regulated Device

Not provided

Is Unapproved Device

Not provided

Pediatric Postmarket Surveillance of a Device Product

Not provided

Product Exported from US

Not provided

FDAAA801 Violation

Not provided

Description Module

Brief Summary

The study hypothesis is that accuracy of CO measurement by IGR does not differ from classical CO measurement methods such as thermodilution or direct Fick method. This is why the study aims to determine whether non invasive cardiac output (CO) measurement using inert gas rebreathing (IGR)is a suitable method in patients with pulmonary hypertension. In order to examine this, the IGR method will be used in patients undergoing diagnostic or follow-up right heart catheterization.

Detailed Description

Inert Gas Rebreathing method enables non invasive measurement of cardiac output (CO) using the single rebreathing method. A mixture of blood soluble (N2O) and blood insoluble gas (SF6) and environmental air is inhaled and the amount of N2O, SF6, O2 and CO2 is measured by a photoacoustic analysator. The length of a measurement is about 1 minute.

As the gold standard measurement of CO is performed invasively, there is an urgent need for the development of non-invasive tools like IGR.

Design Module

Study Type

Observational

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Not provided

Target Follow-Up Duration

Not provided

Phases

Not provided

Interventional Study Design

Allocation

Not provided

Intervention Model

Biospecimen

No data available

No data is available for this block.

Enrollment

34Actual

Measure	Description	Time Frame
Cardiac output		at baseline

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

Written informed consent
Patients who undergo right heart catheterization

Exclusion Criteria:

Missing written informed consent

Accepts Healthy Volunteers

Sex

All

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

18 Years

Maximum Age

Not provided

Standard Ages

AdultOlder Adult

Study Population

The study population consists of patients undergoing diagnostic or follow-up right heart cathereization.

Sampling Method

Non-Probability Sample

Contacts/Locations Module

Central Contacts

Not provided

Overall Officials

Name	Affiliation	Role
Horst Olschewski, MD	Medical University of Graz	Principal Investigator

Locations

Facility	Status	City	State	ZIP	Country	Contacts
Ludwig Boltzmann Institute for Lung Vascular Research		Graz			Austria

Condition Browse Module

MeSH Terms

ID	Term
D006976	Hypertension, Pulmonary

Ancestor Terms

ID	Term
D008171	Lung Diseases
D012140	Respiratory Tract Diseases
D006973	Hypertension
D014652	Vascular Diseases

Browse Leaves

Not provided

Browse Branches

Not provided