Clinical trials: Perfusion Pressures, open to volunteers
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
Cerebral Hemorrhage, Subarachnoid Hemorrhage
Brain PERfusion Evaluation by Contrast-Enhanced UltraSound
The objective of the study is to assess brain tissue perfusion by contrast-enhanced ultrasound perfusion imaging (PerCEUS) in acute brain injuries.
- Conditions
- Cerebral Hemorrhage, Subarachnoid Hemorrhage, Ischemic Stroke, Cerebrovascular Circulation
- Trial name
- PerCEUS (NCT05893407)
- Testing
- Measuring contrast-enhanced ultrasound perfusion with phase inversion harmonic imaging
- Where
- France
- Volunteers
- 60 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
AKI - Acute Kidney Injury, CABG
Perfusion Related Evaluation of Systemic and Renal Vulnerability to Events in CABG
The goal of this observational study is to learn whether high abdominal pressure or low blood flow pressure to the kidneys is linked to kidney injury after heart surgery.
- Trial name
- PRESERVE-CABG (NCT07085286)
- Testing
- Continous IAP measurement
- Volunteers
- 45 people
- Sponsor
- Medical University of Lublin
Cesarean Section
Development of a Risk Prediction Model for Post-Spinal Anesthesia Hypotension During Cesarean Delivery Using Heart Rate, Blood Pressure, Perfusion Index, ECG Waveforms, and SpO₂ Waveforms
Spinal anesthesia is the preferred anesthetic technique for patients undergoing cesarean section. Compared with general anesthesia, spinal anesthesia offers multiple advantages.
- Trial name
- NCT07689825
- Testing
- Standard clinical spinal anesthesia and routine intraoperative monitoring
- Where
- China
- Volunteers
- 145 people
- Sponsor
- Peking University Shenzhen Hospital
Delirium - Postoperative, Postoperative Cognitive Dysfunction (POCD)
Value of the Time-Weighted Average (TWA) of Mean Arterial Pressure (MAP) and Cerebral Oximetry (rSO₂) as Predictors of Postoperative Tissue Perfusion Impairment in Patients Undergoing Cardiac Surgery
Neurological problems after heart surgery are common and include confusion, memory loss, and difficulty thinking clearly. These issues may appear hours or days after surgery and can negatively affect recovery.
- Conditions
- Delirium - Postoperative, Postoperative Cognitive Dysfunction (POCD), Postoperative Acute Kidney Injury, Postoperative Morbidity
- Trial name
- NCT07510711
- Testing
- Continuous intraoperative monitoring of MAP and rSO₂; observational study with no therapeutic intervention.
- Volunteers
- 120 people
- Sponsor
- Hospital Universitari Vall d'Hebron Research Institute
Intensive Care Unit Syndrome
Cerebral Perfusion Variation During Blood Pressure Changes in ICU
The risk associated with arterial hypotension during anesthesia for intensive care sedation has been demonstrated, but the threshold at which consequences for perfusion of one or more organs appear varies according to the…
- Trial name
- DELTAPAMREA (NCT05804773)
- Testing
- Non-invasive Measurement of cerebral blood velocity in the middle cerebral artery by transcranial pulsed Doppler (TCD) (Mean velocity, Vm, cm/s)
- Where
- France
- Volunteers
- 92 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Hypotension (MeSH: D007022)
Carotid Artery Blood Flow, Blood Pressure, and Cardiac Output During Anesthesia in Children Aged 0-5 Years
Blood pressure is routinely monitored during anesthesia in children, but blood pressure alone may not accurately reflect blood flow to vital organs.
- Trial name
- CARFLOW (NCT07847203)
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Acute Kidney Injury
Intraabdominal Pressure Monitoring Urinary Catheter and Kidney Perfusion Pressure
The goal of this clinical trial is to determine whether monitoring intra-abdominal pressure (IAP) and adjusting blood pressure accordingly to maintain optimal renal perfusion pressure can reduce the risk of acute kidney injury…
- Trial name
- NCT06989762
- Testing
- Conventional Foley Catheter(Medline), Accuryn Foley Catheter
- Where
- United States
- Volunteers
- 100 people
- Sponsor
- Dang Tan Phat
Cerebral Autoregulation Impairment, Postoperative Cognitive Dysfunction
BrainProtect-guided, Real-time Cerebral Autoregulation Monitoring and Protection of Brain During Cardiac Surgery With Cardiopulmonary Bypass Requiring Heart-lung Machine
The purpose of this clinical investigation is to evaluate the clinical performance, safety, and clinical benefit of the BrainProtect System in reducing early postoperative neurological complications in adult participants…
- Conditions
- Cerebral Autoregulation Impairment, Postoperative Cognitive Dysfunction, Postoperative Delirium
- Trial name
- BrainProtect (NCT07872982)
- Testing
- BrainProtect System, Standard perioperative management
- Where
- 4 sites in United States, Austria and 2 more
- Volunteers
- 304 people
- Sponsor
- Scienceforbrain, UAB
Acute Respiratory Distress Syndrome
Effect of Spontaneous Breathing in APRV Mode on Respiratory Physiology of ARDS Patients
This is a single-center, prospective, randomized, three-period crossover physiological study in adult patients with moderate-to-severe acute respiratory distress syndrome (ARDS, PaO₂/FiO₂ ≤150 mmHg).
- Trial name
- SBA-APRV (NCT07798154)
- Testing
- APRV ventilation with low-level spontaneous breathing, APRV ventilation with high-level spontaneous breathing, APRV ventilation with fully suppressed spontaneous breathing
- Where
- China
- Volunteers
- 15 people
- Sponsor
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology
Colorectal Liver Metastasis, Liver Neoplasms
A Prospective Study of a Subharmonic-Aided Pressure Estimate Technology for Early Prediction of Response to Systemic Therapy in Colorectal Cancer Liver Metastases
Colorectal cancer is a common type of cancer that often spreads to the liver. When cancer spreads to the liver, treatment becomes very difficult. Many patients will undergo chemotherapy to shrink the tumor.
- Conditions
- Colorectal Liver Metastasis, Liver Neoplasms, Colorectal Neoplasms
- Trial name
- NCT07583381
- Testing
- SHAPE
- Volunteers
- 107 people
- Sponsor
- The First Hospital of Jilin University
Intracranial Pressure, Critical Care
JUgular Gating for Upright Level Adjustment and Targeted Enhancement of Cerebral Perfusion
Investigators aim to demonstrate that the evolution of intracranial pressure (ICP) is nonlinear and may be influenced by jugular vein collapse.
- Trial name
- JUGULATE (NCT07665606)
- Testing
- Ultrasound assessment
- Where
- France
- Volunteers
- 30 people
- Sponsor
- University Hospital, Bordeaux
Intracranial Hypertension
Non Invasive Measurement With Trans Cranial Doppler Versus Invasive Measurement in Pediatric Age
An increase of intracranial pressure (ICP) is an important cause of secondary brain damage. The gold standard for measuring ICP is represented by invasive positioning of intracranial ICP devices.
- Trial name
- nICPped (NCT05340062)
- Testing
- bedside sonography
- Where
- 6 sites in Italy
- Volunteers
- 46 people
- Sponsor
- Azienda Ospedaliera di Padova
Acute Kidney Injury, Intra-Abdominal Hypertension
Cumulative Intra-Abdominal Pressure Burden and Acute Kidney Injury After Emergency Abdominal Surgery
The goal of this observational study is to learn whether increased pressure inside the abdomen over time is associated with acute kidney injury in adults receiving intensive care after emergency abdominal surgery.
- Trial name
- IAP-AKI (NCT07891026)
- Testing
- Serial Intra-Abdominal Pressure Measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 300 people
- Sponsor
- Ugur Duman
Intracranial Hypertension
Effects of Extracorporeal Circulation Techniques on Cerebral Perfusion in CABG Surgery
This prospective study aims to compare the effects of minimal invasive extracorporeal circulation (MiECC) and conventional reservoir-based extracorporeal circulation techniques on cerebral perfusion in patients undergoing…
- Trial name
- NCT07420738
- Where
- Turkey (Türkiye)
- Volunteers
- 70 people
- Sponsor
- Kartal Kosuyolu High Speciality Training and Research Hospital
Intra-Abdominal Hypertension, Critical Illness
Intra-Abdominal Pressure Changes During Continuous Renal Replacement Therapy in Critically Ill Patients
This prospective observational study will evaluate changes in intra-abdominal pressure in critically ill adult patients receiving continuous renal replacement therapy in the intensive care unit.
- Conditions
- Intra-Abdominal Hypertension, Critical Illness, Continuous Renal Replacement Therapy
- Trial name
- NCT07823387
- Testing
- Intravesical Intra-abdominal Pressure Measurement
- Where
- Turkey (Türkiye)
- Volunteers
- 95 people
- Sponsor
- Bursa Yuksek Ihtisas Training and Research Hospital
Bronchopulmonary Dysplasia, Pulmonary Hypertension Due to Lung Diseases and Hypoxia
Ventilator Pressure and Optimization of Compliance and Hemodynamics
In preterm infants < 34 weeks' gestation at birth receiving respiratory support with invasive positive pressure ventilation, the positive end-expiratory pressure (PEEP) of best compliance will increase the cardiac output and…
- Conditions
- Bronchopulmonary Dysplasia, Pulmonary Hypertension Due to Lung Diseases and Hypoxia, Extreme Prematurity, Ventilator Lung; Newborn
- Trial name
- VPOCH (NCT06512935)
- Testing
- Increase in the PEEP followed by decrease in the PEEP, Decrease in the PEEP followed by increase in the PEEP
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- University of Alabama at Birmingham
Shock
Tissue Perfusion Pressure for Predicting Fluid Responsiveness in Patients With Shock
This prospective observational study aims to evaluate the ability of tissue perfusion pressure (TPP) to predict fluid responsiveness in critically ill patients with shock and tissue hypoperfusion.
- Trial name
- NCT07670390
- Testing
- When the attending physician determines that fluid resuscitation is clinically indicated: Patients will remain in the supine position. Crystalloid solution will be administered intravenously via centr
- Volunteers
- 34 people
- Sponsor
- Jingyuan,Xu
Cerebral Perfusion Pressure, Trendelenburg
Evaluation of Cerebral Perfusion in Supine and Steep Trendelenburg Positions During Robotic Prostatectomy
Evaluation of Cerebral Perfusion in Supine and Steep Trendelenburg Positions During Robotic Prostatectomy Robotic endoscopic radical prostatectomy requires pneumoperitoneum and the steep Trendelenburg position to ensure optimal…
- Trial name
- NCT07317258
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Hanife Kabukcu
Traumatic Brain Injury, Severe Traumatic Brain Injury
Optimal Cerebral Perfusion Pressure Guided Therapy: Assessment of Target Effectiveness - II
After severe traumatic brain injury, adequate blood flow to the brain is essential for recovery. This depends on arterial blood pressure, yet intensive care units apply fixed targets to all patients - treating every brain and…
- Conditions
- Traumatic Brain Injury, Severe Traumatic Brain Injury, Intracranial Pressure, Cerebral Perfusion Pressure
- Trial name
- Cogitate II (NCT07287358)
- Testing
- Optimal cerebral perfusion pressure
- Where
- 4 sites in Netherlands
- Volunteers
- 62 people
- Sponsor
- Maastricht University Medical Center