121 - Pneumothorax and Chest Tube Placement Incidence After Lung Biopsy with a Valved vs Non-valved Coaxial Biopsy Device

Monday, April 13, 2026

3:18 PM - 3:27 PM ET

Presenting Author(s)

LT

Logan Taylor, MD

Resident
University of Kansas Medical Center, United States

Author/Co-author(s)

MC

Mijail Corimanya, BS

Medical Student
University of Kansas School of Medicine, United States
CW

Carissa Walter, MPH

Research Manager
University of Kansas Medical Center, United States
AR

Aaron Rohr, MD

Associate Professor
University of Kansas Medical Center, United States

Purpose: To compare post-biopsy pneumothorax rates and chest tube placement between valved and non-valved devices used during percutaneous lung biopsy.

Materials and Methods: This retrospective study included 156 patients who underwent percutaneous lung biopsy at a single institution between 6/20/2024 and 02/12/2025. Eighty-two (52.6%) were female and 74 (47.4%) were male with an average age of 66.7 years. Demographic and medical history for each patient was obtained including presence of chronic obstructive pulmonary disease and severity, presence of bullae, and smoking status. Biopsy success for each procedure was recorded and defined by obtaining at least one core biopsy. Post procedure complications, including incidence of pneumothorax and chest tube placement within 30 days of procedure, were recorded. Chi-Square test was used to determine differences in pneumothorax and chest tube placement rates between the two groups.

Results: Fifty-six patients (35.9%) underwent biopsy with a valved device, and 100 (64.1%) patients with a non-valved device. Thirteen (23.2%) patients who underwent biopsy with a valved device developed pneumothorax compared with 27 (27.0%) who underwent biopsy with a non-valved device (p=0.6034). Four (7.1%) patients had a chest tube placed in the valved group and 11 (11.0%) in the non-valved group (p=0.4331).

Conclusion: This analysis found no statistically significant difference between pneumothorax and chest tube placement rates between valved and non-valved devices used in percutaneous lung biopsies. Limitations of the study include a relatively small sample size at a single institution.