Ventilation with Expiratory Ventilation Assistance - clinical use during microlaryngeal surgery

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00013097

Enrollment

Registered

2017-09-29

Start date

2017-10-18

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

surgical conditions during microlaryngeal surgery intraoperative ventilation

Interventions

Group 1: Intervention group: Ventilation with "Expiratory Ventilation Assistance" and EVA-tube Group 2: Control group: Standard treatment, ventilation with volume-controlled mode with a standard tube

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: elective, microlaryngeal surgery written informed consent

Exclusion criteria

Exclusion criteria: ASA status > III; COPD stadium > GOLD II; known valvular heart disease; implanted cardioverter/defibrillator, pacemaker or other active implants; planned laser surgery; anticipated difficult airway with planned fibreoptic intubation; emergency procedure; participation of the patient in other studies concerning intraoperative ventilation

Design outcomes

Primary

Measure	Time frame
Percentages of visual parts of the larynx on a total view	—

Secondary

Measure	Time frame
Surgical conditions (five point rating scale), regional ventilation (assessed by electrical impedance tomography), airway flow and pressure, compliance, etCO2	—

Countries

Germany

Contacts

Public ContactJohannes Schmidt

Klinik für Anästhesiologie und IntensivmedizinUniversitätsklinikum Freiburg

johannes.schmidt@uniklinik-freiburg.de+49 761 270 23060

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 20, 2026