NCT04539080

Brief Summary

Heart rate variability(HRV) and electroencephalography(EEG) has been used widely in anesthetic practice nowadays. One of the most dominant applications is the nociception-analgesia balance. Some evidence support that heart rate variability correlates with perioperative stimulation and postoperative pain score. There are some new evidence support EEG correlated with anesthesia depth and analgesic balance. However, the heterogeneity between the studies and interference factors has limited their usage in clinical practice. On the other hand, peripheral nerve block is broadly used as a routine technique with general anesthesia, but few studies discuss the effect on heart rate variability. Our study focuses on the different HRV and EEG patterns of incision and insufflation during laparoscopic surgery with general anesthesia. Furthermore, we measure the effect of transversus abdominis plane nerve block to heart rate variability during surgery. By this comparison, we can discuss the influences of somatic stimulation, visceral stimulation, and pneumoperitoneum to heart rate variability, and then improve the accuracy of HRV-based nociception-analgesia monitors.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Aug 2020

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 30, 2020

Completed
Same day until next milestone

Study Start

First participant enrolled

August 30, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 4, 2020

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2021

Completed
2.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

August 30, 2023

Completed
Last Updated

January 26, 2023

Status Verified

January 1, 2023

Enrollment Period

6 months

First QC Date

August 30, 2020

Last Update Submit

January 24, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Different heart rate variability pattern during laparoscopy

    Different heart rate variability pattern in incision and inflation with or without TAP block

    6 months

Study Arms (2)

Pre-operative transversus abdominis plane block

The group with transversus abdominis plane block before laparoscopic surgeries with a standard pain control protocol

Procedure: transversus abdominis plane block

Traditional pain control group

The group with a standard pain control protocol

Interventions

transversus abdominis plane block group

Pre-operative transversus abdominis plane block

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

scheduled to undergo general anesthesia for laparoscopic surgery (cholecystectomy or appendectomy) at Taitung MacKay memorial hospital

You may qualify if:

  • ≥20 years of age male or female
  • American Society of Anesthesiologists (ASA) physical status classification I or II
  • capacity to give informed consent

You may not qualify if:

  • major cardiovascular and cerebral vascular disease, arrhythmia, respiratory disease, diabetes mellitus with evidence of neuropathy; ASA physical status classification III or greater; a documented or self-reported history of chronic pain; acute or chronic opioid analgesic use; dysautonomia; and intraoperative muscarinic anticholinergic administration during the time of monitoring.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Taitung MacKay memorial hospital

Taitung, Taitung, Taiwan, Taiwan

RECRUITING

Related Publications (1)

  • Wang TC, Li WY, Lai JC, Kuo TBJ, Yang CCH. Nociception Effect on Frontal Electroencephalogram Waveform and Phase-Amplitude Coupling in Laparoscopic Surgery. Anesth Analg. 2024 May 1;138(5):1070-1080. doi: 10.1213/ANE.0000000000006609. Epub 2023 Jul 10.

MeSH Terms

Conditions

Agnosia

Condition Hierarchy (Ancestors)

Perceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Tzu-Chun Wang, MD

    Taitung Mackay Memorial Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Tzu-Chun Wang, MD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 30, 2020

First Posted

September 4, 2020

Study Start

August 30, 2020

Primary Completion

February 28, 2021

Study Completion

August 30, 2023

Last Updated

January 26, 2023

Record last verified: 2023-01

Data Sharing

IPD Sharing
Will not share

Locations