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Less gas, same safety: new anesthesia method cuts drug use in kidney stone surgery

NCT ID NCT07248917

Completed Knowledge-focused Sponsor: Dr. Lutfi Kirdar Kartal Training and Research Hospital Source: ClinicalTrials.gov ↗

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested two ways of giving anesthesia gas (sevoflurane) during kidney stone surgery. One method used a very low gas flow (minimal-flow), the other a slightly higher flow (low-flow). In 62 adults, the minimal-flow approach used less anesthesia drug while keeping patients safely asleep and stable. The findings suggest minimal-flow anesthesia is a safe, cost-saving, and eco-friendly option.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
sevoflurane
What this could lead to
If confirmed, minimal-flow anesthesia could become standard practice, reducing drug costs and environmental impact without compromising patient safety.
What could go wrong
This is a small, single-center study with only 62 patients. Results may not apply to other surgeries or patients with health issues. The study does not test long-term outcomes.

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Conditions

The condition(s) this trial relates to.

Mycobacterium avium complex disease urolithiasis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

ANESTHESIA DEPTH MONITORING ANESTHETIC CONSUMPTION INHALATIONAL ANESTHESIA MINIMAL FLOW ANESTHESIA RETROGRADE INTRARENAL SURGERY (RIRS) SEVOFLURANE UROLITHIASIS

Contacts and locations

Locations

  • Kartal Dr. Lütfi Kırdar City Hospital, University of Health Sciences

    Istanbul, 34865, Turkey (Türkiye)

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