Postcapillary Blood Gas Analysis in Wedge Position (Wedge-BGA)

Status Recruiting

Clinical Trial Summary

If pulmonary hypertension is suspected, a right heart catheterization is usually performed to confirm or rule out the diagnosis. As part of this examination, blood samples are taken from various locations as standard and blood gas analyses are performed. One of the most important measurements during the right heart catheterization is the measurement of the pulmonary arterial occlusion pressure by the so-called wedge maneuver. To measure this value, the catheter with inflated balloon must be advanced into the pulmonary vessels until the "wedge" position is reached, i.e. the balloon completely occludes a branch of the pulmonary artery. In this study, the investigators want to characterize patients with pulmonary hypertension of different causes in more detail. To do that, two blood samples (totaling approximately 4 mL of blood, one sample directly after occlusion and the other one two minutes later) will be drawn during the right heart catheterization from the above-mentioned "wedge" position", behind the inflated balloon, and blood gas analyses will be performed on these samples. In addition, various clinical parameters (comorbidities, etc.) will be recorded by means of clinical questionnaires. Follow-up data will be analyzed and correlations with the aforementioned blood gas analyses will be examined. The results of the study will be used to more precisely characterize the still vague concept of secondary pulmonary hypertension. This could help to develop new therapeutic strategies in some subgroups in the future.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04993612
Study type	Observational
Source	RWTH Aachen University
Contact
Status	Recruiting
Phase
Start date	June 25, 2021
Completion date	June 30, 2024

View Details

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Withdrawn	`NCT01950585` - Hydroxyurea in Pulmonary Arterial Hypertension	Early Phase 1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	`NCT02216279` - Phase-II Study of the Use of PulmoBind for Molecular Imaging of Pulmonary Hypertension	Phase 2
Terminated	`NCT02246348` - Evaluating Lung Doppler Signals in Patients With Systemic Sclerosis (SSc)	N/A
Completed	`NCT02821156` - Study on the Use of Inhaled NO (iNO)	N/A
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	`NCT06240871` - Contrast Enhanced PA Pressure Measurements
Completed	`NCT01615484` - Ex-vivo Perfusion and Ventilation of Lungs Recovered From Non-Heart-Beating Donors to Assess Transplant Suitability	N/A
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	`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	`NCT02275793` - The Regulation of Pulmonary Vascular Resistance in Patients With Heart Failure
Completed	`NCT01463514` - Noninvasive Determination of Cerebral Tissue Oxygenation in Pulmonary Hypertension	N/A