Clinical Trials Logo

Clinical Trial 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.


Clinical Trial 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. ;


Study Design

Observational Model: Cohort, Time Perspective: Prospective


Related Conditions & MeSH terms


NCT number NCT01606839
Study type Observational
Source Medical University of Graz
Contact
Status Completed
Phase N/A
Start date February 2012
Completion date February 2014

See also
  Status Clinical Trial Phase
Withdrawn NCT01950585 - Hydroxyurea in Pulmonary Arterial Hypertension Early Phase 1
Completed NCT00527163 - Role of Nitric Oxide in Malaria
Completed NCT03649932 - Enteral L Citrulline Supplementation in Preterm Infants - Safety, Efficacy and Dosing Phase 1
Recruiting NCT04554160 - Arrhythmias in Pulmonary Hypertension Assessed by Continuous Long-term Cardiac Monitoring
Enrolling by invitation NCT03683186 - A Study Evaluating the Long-Term Efficacy and Safety of Ralinepag in Subjects With PAH Via an Open-Label Extension Phase 3
Completed NCT01894035 - Non-interventional Multi-center Study on Patients Under Routine Treatment of Pulmonary Arterial Hypertension (PAH) With Inhaled Iloprost Using I-Neb as a Device for Inhalation
Not yet recruiting NCT04083729 - Persistent Pulmonary Hypertension After Percutaneous Mitral Commissurotomy N/A
Completed NCT02821156 - Study on the Use of Inhaled NO (iNO) N/A
Terminated NCT02246348 - Evaluating Lung Doppler Signals in Patients With Systemic Sclerosis (SSc) N/A
Completed NCT02216279 - Phase-II Study of the Use of PulmoBind for Molecular Imaging of Pulmonary Hypertension Phase 2
Terminated NCT02243111 - Detecting Pulmonary Arterial Hypertension (PAH) in Patients With Systemic Sclerosis (SSc) by Ultrasound N/A
Recruiting NCT01913847 - Safety and Efficacy Study of HGP1207 in Patients With Pulmonary Hypertension Phase 3
Completed NCT01615484 - Ex-vivo Perfusion and Ventilation of Lungs Recovered From Non-Heart-Beating Donors to Assess Transplant Suitability N/A
Completed NCT06240871 - Contrast Enhanced PA Pressure Measurements
Completed NCT02377934 - Evaluation of Radiation Induced Pulmonary Hypertension Using MRI in Stage III NSCLC Patients Treated With Chemoradiotherapy. A Pilot Study
Recruiting NCT01091012 - Effectiveness of the Vasodilator Test With Revatio, Made in Patients With Acute Pulmonary Hypertension Phase 3
Completed NCT02275793 - The Regulation of Pulmonary Vascular Resistance in Patients With Heart Failure
Completed NCT01484899 - Smoking: a Risk Factor for Pulmonary Arterial Hypertension? N/A
Completed NCT00739375 - The Effect of Blood Flow in the Maturing Arteriovenous Access for Hemodialysis on the Development of Pulmonary Hypertension. Phase 1
Completed NCT01463514 - Noninvasive Determination of Cerebral Tissue Oxygenation in Pulmonary Hypertension N/A