61 - Renal Cryoablation in the Office-Based Lab Setting versus Hospital Setting

Sunday, April 12, 2026

3:00 PM - 3:09 PM ET

Presenting Author(s)

Aden G. Miller, MD

Resident
Baptist Memorial Hospital, United States

Author/Co-author(s)

William G. Woodruff, MD

Independent IR Resident
Duke University Medical Center, United States

Purpose: To assess differences in CT guided percutaneous renal cryoablation procedures performed in an office-based lab (OBL) compared to a hospital setting.

Materials and Methods: Single institution IRB-approved retrospective study of 65 CT guided percutaneous renal cryoablation procedures performed at an office-based lab and in a hospital setting from July 2024 through May 2025. Data collected included patient demographics, consultation to procedure interval, procedure start delay, procedure duration, anesthesia/sedation duration, length of stay, radiation (dose length product), and adverse events.

Results: 36 renal cryoablation procedures performed at the OBL and 29 renal cryoablation procedures performed in the hospital setting were evaluated. There was no significant difference in patient age between the two groups. No significant difference was observed between the OBL and hospital groups with regards to consultation to procedure interval (50.7 days vs 64.1 days, P = 0.38) or procedure length (84.8 minutes vs 74.9 minutes, P = 0.052). Procedures performed in the OBL demonstrated significantly shorter procedure start delays (20.4 minutes vs 155.6 minutes, P < 0.0001), significantly shorter anesthesia/sedation duration (89.9 minutes vs 112.2 minutes, P = 0.011), and significantly shorter length of stay (291.1 minutes vs 503.3 minutes, P < 0.0001) compared to procedures performed in the hospital. There was a significant decrease in radiation (dose length product) for procedures performed in the OBL compared to the hospital (2462.1 mGycm vs 5300.2 mGycm, P < 0.0001). 2 mild adverse events occurred in the OBL group (5.6%), and 2 mild adverse events occurred in the hospital group (6.9%), all of which were small hematomas, with no significant difference between the groups (P = 0.82). No moderate or severe adverse events occurred in either group.

Conclusion: CT guided percutaneous renal cryoablation can be safely performed in an office-based lab setting, with shorter procedure start delays, shorter anesthesia/sedation duration, shorter length of stay, and less radiation compared to the hospital setting.