Prediction of postoperative pain and anagesic consumption by using the RIII-reflex

Prediction of postoperative pain and anagesic consumption by using the RIII-reflex - RIII-TT-clinic

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00003224

Enrollment

Registered

2011-08-09

Start date

2009-06-17

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

R52.9

Interventions

Group 1: To estimate the RIII-Reflex threshold the sural nerve is stimulated with an electrical nerve-stimulator at different current intensities before and after the loss of consciousness. The electr

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Patients that undergo a operative procedure after which a moderate to severe pain level is expected that requires postoperatively according to the internal guidelines the use of a patient controlled analgesia

Exclusion criteria

Exclusion criteria: Unanbility to give formal legal consent Preoperative analgesic medication

Design outcomes

Primary

Measure	Time frame
Predictability of postoperative analgesic consumption with the preoperatively measured RIII-reflexthreshold or the preoperatively measured pain level the electrical stimulus induces.	—

Secondary

Measure	Time frame
Predictability of the postoperative analgesic consumption with the RIII-reflex threshold measured preoperatively after the loss of consciousness.	—

Countries

Germany

Contacts

Public ContactJan H. Baars

Charité -Universitätsmedizin Berlin CCM Klinik für Anästhesiologie

jan.baars@charite.de+49 30 450 531227

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026