NCT07551791 · Vanderbilt University Medical Center
Suction vs Underwater Seal for HemoPneumoThoraX Trial
(SUS-HPTX)
What this study is about
Traumatic pneumothorax and hemothorax are common consequences of chest injury, often requiring prompt tube thoracostomy to re-expand the lung and drain accumulated blood or air. Current practice varies widely regarding whether chest tubes should initially be placed to suction or to water seal, and prior studies have reported mixed findings.
View original scientific description
Traumatic pneumothorax and hemothorax are common consequences of chest injury, often requiring prompt tube thoracostomy to re-expand the lung and drain accumulated blood or air. Current practice varies widely regarding whether chest tubes should initially be placed to suction or to water seal, and prior studies have reported mixed findings. While suction may theoretically improve drainage and lung expansion, some studies suggest it may prolong air leaks and chest tube duration. Conversely, initial water seal has been associated with shorter tube duration without an increase in complications. The predecessor to this trial, the SEAL IT Trial, demonstrated that water seal reduced chest tube duration in patients with pneumothorax without an increase in complication, but excluded those with significant hemothorax. This single-center, randomized controlled trial (SUS-HPTX) will expand upon those findings by evaluating the effect of initial chest tube management strategy, suction versus water seal, in trauma patients with hemopneumothorax or hemothorax. Patients will be assigned to one of the two groups based on calendar month of enrollment, with clinicians able to adjust management as needed. The primary outcome is chest tube duration. Secondary outcomes include chest tube-related complications (e.g., empyema, pneumonia, re-accumulation of pneumothorax or hemothorax, need for additional procedures), hospital length of stay, readmissions, and mortality. Because both suction and water seal are accepted standards of care, the study involves minimal incremental risk.
Interventions
OTHER
Suction
Initial chest tube placed to suction
OTHER
Water Seal
Initial chest tube placed to water seal
Primary outcome measures
Chest tube duration
Time frame: hours from placement of chest tube to removal of chest tube, on average 3 days
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Admitted to trauma service
- Patient has hemothorax or hemopneumothorax requiring chest tube
Exclusion criteria
- Less than 18 years old, pregnant, prisoner, chest tube placed prior to CT scan
Where
- Nashville, Tennessee
Related conditions & keywords
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
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Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
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Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
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How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Jun 2, 2026 · Source of record for eligibility and locations