# Analgesia Nociception Index (ANI) After Unilateral Radical Mastectomy as an Evaluation of Paravertebral Block Failure

> **NCT03832920** · — · COMPLETED · sponsor: **Institut de Cancérologie de Lorraine** · enrollment: 100 (actual)

## Conditions studied

- Breast Cancer

## Interventions

- **OTHER:** Analgesia Nociception Index

## Key facts

- **NCT ID:** NCT03832920
- **Lead sponsor:** Institut de Cancérologie de Lorraine
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2019-05-02
- **Primary completion:** 2020-06-26
- **Final completion:** 2023-03-01
- **Target enrollment:** 100 (ACTUAL)
- **Last updated:** 2026-01-02


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03832920

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03832920, "Analgesia Nociception Index (ANI) After Unilateral Radical Mastectomy as an Evaluation of Paravertebral Block Failure". Retrieved via AI Analytics 2026-07-26 from https://api.ai-analytics.org/clinical/NCT03832920. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*