Lower (-4 cmH₂O) versus standard (-8 cmH₂O) digital chest suction after lung resection

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This randomized interventional study enrolls adults undergoing anatomical lung resection (segmentectomy or lobectomy) for confirmed or suspected primary lung cancer at Seoul National University Hospital and uses a Thopaz digital continuous suction device as the sole chest drain. Patients with a measurable air leak on postoperative day 1 are randomized to continuous suction set at either -4 cmH₂O or -8 cmH₂O. The primary outcome is duration of chest tube placement; secondary outcomes include air-leak duration, length of hospital stay, postoperative complications (pneumothorax, subcutaneous emphysema, re-intervention), need for pleurodesis or suction readjustment, and 30-day readmission. Patients without a clinically meaningful air leak on POD1 are considered screen failures and are not randomized.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Adults ≥19 years of age.
* Undergoing anatomical lung resection (segmentectomy or lobectomy) for confirmed or suspected primary lung cancer at a tertiary center.
* Digital continuous suction device (Thopaz) used as the sole chest drainage system immediately after surgery.
* Able to provide written informed consent on the day before surgery.
* Randomization criterion (in-hospital): On postoperative day 1 (approximately 7-8 AM), a measurable air leak persists and the chest tube is not removed per routine care. Participants with no clinically meaningful air leak on POD1 (e.g., 0-10 mL/min per institutional criteria) will be considered screen failures and will not be assigned to an arm.

Exclusion Criteria:

* Placement of two or more drains (e.g., additional chest tube or JP drain) during the index surgery.
* Intraoperative or immediate postoperative serious complication requiring ICU care.
* Change from the digital suction system to another drainage system prior to randomization or outcome assessment.
* Any condition that, in the opinion of the investigator, makes participation inappropriate (e.g., inability to comply with study procedures or safety concerns).

Where it's running

• Seoul National University Hospital
  Seoul, South Korea Recruiting

Study contacts

• Study coordinator: SeonYong Bae, MD
• Email: bsy115s@naver.com
• Phone: 82) + 010-3205-4460

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.