Clinical trials: Ventilation Perfusion Mismatch
Pulmonary Embolism, Ventilation Perfusion Mismatch
68Ga PET/CT Versus 99mTc SPECT/CT for Lung Perfusion and Ventilation Scintigraphy; a Technical and Practical Feasibility Study
Lung perfusion scintigraphy with 99mTc-MAA and ventilation scintigraphy with Technegas (V/Q SPECT/CT) has been the cornerstone for the detection of pulmonary embolisms (PE) for many decades.
- Trial name
- GaTcha (NCT06246838)
- Testing
- Ga-68 V/Q PET/CT
- Where
- Netherlands
- Volunteers
- 20 people
- Sponsor
- UMC Utrecht
Invasive Mechanical Ventilation, Ventilation-Perfusion Mismatch
Physiological Dead Space and Intensive Care Mortality in Mechanically Ventilated Patients
This study investigates the relationship between physiological dead space and clinical outcomes, specifically mortality and discharge status, in adult patients receiving invasive mechanical ventilation in the intensive care unit…
- Conditions
- Invasive Mechanical Ventilation, Ventilation-Perfusion Mismatch, ICU Mortality, Critical Illness
- Trial name
- IRIS-MAP (NCT06963944)
- Where
- Turkey (Türkiye)
- Volunteers
- 68 people
- Sponsor
- Karadeniz Technical University
Respiratory Distress Syndrome, Positive-Pressure Respiration
Personalized Ventilation Based on Ventilation-perfusion Mismatch and Lung Recruitability
This observational study will explore the effects of PEEP and position on regional lung ventilation-perfusion mismatch by electrical impedance tomography (EIT) in moderate-to-severe ARDS patients with different lung…
- Conditions
- Respiratory Distress Syndrome, Positive-Pressure Respiration, Mechanical Ventilation
- Trial name
- NCT06430554
- Where
- China
- Volunteers
- 40 people
- Sponsor
- Zhongda Hospital
Physiological Dead Space, Ventilation-Perfusion Mismatch
Correlation of EtCO₂- and P(A-a)O₂-Based Dead Space Calculations in Mechanically Ventilated ICU Patients
This study aims to evaluate two different methods for calculating physiological dead space in adult patients undergoing invasive mechanical ventilation in the intensive care unit (ICU).
- Conditions
- Physiological Dead Space, Ventilation-Perfusion Mismatch, Mechanical Ventilation, Enghoff Correction
- Trial name
- CODE-EtA (NCT06947486)
- Where
- Turkey (Türkiye)
- Volunteers
- 41 people
- Sponsor
- Karadeniz Technical University
Obesity (Disorder), Ventilation Homogeneity
Positional Effects on Lung Ventilation and Perfusion in Obesity
Electrical Impedance Tomography (EIT) is a non-invasive, bedside monitoring tool that provides real-time information on regional ventilation and perfusion.
- Conditions
- Obesity (Disorder), Ventilation Homogeneity, Perfusion, Ventilation Perfusion Mismatch
- Trial name
- NCT07341113
- Testing
- Standardized body positioning
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Koç University
Infant, Premature, Diseases, Respiratory Insufficiency Syndrome of Newborn
Impact of CPAP Level on V/Q Mismatch in Premature Infants
Continuous positive airway pressure (CPAP) is used in premature infants to maintain lungs open and facilitate gas exchange. When ventilation/perfusion (V/Q) mismatch is present, areas of the lung that are open for gas exchange do…
- Trial name
- NCT02983825
- Testing
- Continuous positive airway pressure (CPAP); level changes
- Where
- 3 sites in United States
- Volunteers
- 21 people
- Sponsor
- Children's Hospital of Philadelphia
Anesthesia, Postoperative Complications
Evaluation of V/Q Mismatch as Predictor of Pulmonary Postoperative Complications in Patients Undergoing Major Surgery
Pulmonary postoperative complications (PPC) are among the main causes of surgical complications affecting both postoperative morbidity and mortality.
- Conditions
- Anesthesia, Postoperative Complications, Mechanical Ventilation Complication
- Trial name
- VQppc (NCT05454917)
- Testing
- Measure of ventilation/perfusion (V/Q) mismatch using Beacon ALPE (Automatic Lung Paramether Estimator)
- Where
- Italy
- Volunteers
- 101 people
- Sponsor
- Università degli Studi di Ferrara
Acute Respiratory Distress Syndrome, Electrical Impedance Tomography
Evaluate the Effect of Prone Ventilation on Ventilated-blood Flow Ratio in Patients With ARDS by EIT
Patients with ARDS often suffer a gravity-dependent alveolar collapse, resulting in a reduction of tidal volume, residual alveolar excessive distension, and ventilator-related lung injury(VILI) induced by unreasonable ventilator…
- Conditions
- Acute Respiratory Distress Syndrome, Electrical Impedance Tomography, Prone Position Ventilation, Ventilation Perfusion Mismatch
- Trial name
- NCT06181539
- Where
- China
- Volunteers
- 94 people
- Sponsor
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Acute Respiratory Distress Syndrome, Ventilation Perfusion Mismatch
Change in the Phase III Slope of the Volumetric Capnography by Prone Positioning in Acute Respiratory Distress Syndrome
This study evaluates the effects of prone positioning on homogenization of ventilation.
- Conditions
- Acute Respiratory Distress Syndrome, Ventilation Perfusion Mismatch, Respiratory Failure
- Trial name
- NCT05535543
- Testing
- Prone Positioning
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Istanbul University - Cerrahpasa
Post-Acute COVID-19, Post COVID-19 Condition
Ventilatory and Perfusion Abnormalities in Individuals With Post-Acute Sequelae of SARS-CoV-2 Infection
Prospective cohort study to evaluate the utility of quantitative CT analysis to assess ventilation and perfusion defects in patients with Post-acute Sequelae of SARS-CoV-2 (PASC) and functional limitations
- Conditions
- Post-Acute COVID-19, Post COVID-19 Condition, Post Viral Fatigue, Dyspnea
- Trial name
- PASC VQ (NCT05866952)
- Testing
- Computed Tomography of the Chest
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Tufts Medical Center