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RecruitingNCT05445037Updated Mar 13, 2024

Hemodynamic and Cerebral Effects Evaluation in Anesthesia

An interventional study of hemodynamic continuous monitoring and Standard Monitoring in Hemodynamic Monitoring and Orthopedic Procedures, sponsored by Instituto de Assistencia Medica ao Servidor Publico Estadual, Sao Paulo. Recruiting at 1 site in Brazil. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2024-03-13.

Sponsored by Instituto de Assistencia Medica ao Servidor Publico Estadual, Sao Paulo · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Apr 2024, 2 years 6 months ago, but the record still lists the study as recruiting.
  • Started Oct 2022; still recruiting 3 years 11 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Recently, there has been an increase in the popularity of minimally invasive surgical techniques, including arthroscopic surgeries for shoulder procedures. Interscalene block is currently the gold standard technique for these surgeries, combined or not with general anesthesia. The last, when used in patients positioned in a beach chair can lead to serious hemodynamic and cerebral changes in the patients. Continuous non-invasive monitoring of the patient's cardiac output can provide data for better hemodynamics management compared to standard monitoring. Therefore, the aim of the study is to compare hemodynamic changes (cardiac output, blood pressure, heart rate, oxygen saturation) and intraoperative cerebral oxygenation using peripheral cerebral saturation monitoring with continuous measurement of cardiac output or standard hemodynamic between two anesthetic techniques for shoulder surgery: interscalene block with sedation versus interscalene block with general anesthesia. The groups will be evaluated as follows: group 1 general anesthesia plus interscalene brachial plexus block and group 2 sedation plus interscalene brachial plexus block. Additionally, each group will be subdivided into two more groups, one with continuous hemodynamic monitoring and the other with standard hemodynamic monitoring, that is, a total of 4 groups in the study. The analyzed variables will include gender, age, ASA, medications in use, comorbidities. Furthermore, duration of procedure and in the anesthetic recovery room, blood pressure, heart rate, cardiac output, peripheral oxygen saturation, cerebral oxygen saturation, BIS value, cardiac index, etCO2 will be evaluated. Besides, length of hospital stay, delirium, behavioral status and postoperative complication will also be assessed.

Read the detailed description

The study will be split in 4 groups, being group 1A general anesthesia plus interscalene brachial plexus block with continuos non-invasive monitoring, group 1B general anesthesia plus interscalene brachial plexus block with standard hemodynamic monitoring, group 2A sedation plus interscalene brachial plexus block with continuos non-invasive monitoring, gruop 2B sedation plus interscalene brachial plexus block with standard hemodynamic monitoring.

The standard hemodynamic monitoring includes blood pressure, heart rate, peripheral oxygen saturation, brain monitoring and cerebral oxygen saturation. The continuos non-invasive monitoring includes the standard monitoring plus cardiac output, cardiac index and hypotension predict index. These variables will be analyzed intraoperatively and compared between groups with the aim of demonstrating the benefit of continuous non-invasive monitoring.

In the postoperative will be evalueted delirium, lenght hospital stay, postoperative complication and pain. We will use the Richmond Agitation Sedation Scale (RASS), Confusion Assessment Method in the ICU, visual analogue pain scale and visual numeric pain scale for evaluation postoperative.

02

Conditions studied

  • Hemodynamic Monitoring
  • Orthopedic Procedures
03

In context

Lead sponsor

Instituto de Assistencia Medica ao Servidor Publico Estadual, Sao Paulo is the lead sponsor of 4 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Undergoing arthroscopic shoulder surgery in a beach chair position.

Exclusion criteria

Exclusion Criteria:

  • Emergency surgery
  • Blood dyscrasia
  • Refusal of the procedure
  • Infection at the puncture site
  • Allergy to the medication used
  • Previous cerebrovascular disease
  • History of orthostatic hypotension
  • Pulmonary disease
  • Chronic use of opioids
  • Performance of arthroscopic surgeries on both shoulders
  • Refusal to participate in the study
  • Not to sign an informed consent form.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
100 participants (estimated)

Study arms

  • Experimental
    Continuos Monitoring

    Continuos monitoring will be done with clearsight continuously assessing blood pressure, cardiac output and heart rate; NIRS electrode to access cerebral O2 saturation, peripheral O2 saturation, BIS value and axillary temperature.

    Device: hemodynamic continuous monitoring

  • Experimental
    Standard monitoring

    Standard monitoring will be done with non-invasive

    Device: Standard Monitoring

Interventions

  • Devicehemodynamic continuous monitoring

    Continuous monitoring will be done with clearsight continuously assessing blood pressure, cardiac output and heart rate; NIRS electrode to assess cerebral O2 saturation, peripheral O2 saturation, BIS value and axillary temperature.

  • DeviceStandard Monitoring

    Standard monitoring will be done with non-invasive blood pressure, heart rate, NIRS electrode to access cerebral O2 saturation, peripheral O2 saturation, axillary temperature, BIS value. In addition, patients will use Clearsight, but the device will be blind to the anesthesiologist. Pressure monitoring will be every 5 min.

06

What researchers measure

Primary outcomes

  1. Compare intraoperative hemodynamic changes: cardiac output

    Compare cardiac output changes between continuous hemodynamic measurement of cardiac output or standard hemodynamics monitoring in two anesthetic techniques for shoulder surgery: interscalene block with sedation versus interscalene block with general anesthesia.

    Time frame: Intraoperative

  2. Compare intraoperative hemodynamic changes: blood pressure

    Compare blood pressure changes between continuous hemodynamic measurement of cardiac output or standard hemodynamics monitoring in two anesthetic techniques for shoulder surgery: interscalene block with sedation versus interscalene block with general anesthesia.

    Time frame: Intraoperative

  3. Compare intraoperative hemodynamic changes: heart rate

    Compare heart rate changes between continuous hemodynamic measurement of cardiac output or standard hemodynamics monitoring in two anesthetic techniques for shoulder surgery: interscalene block with sedation versus interscalene block with general anesthesia.

    Time frame: Intraoperative

  4. Evaluation of continuos hemodinamic monitoring non-invasive

    Verify the superiority of continuos hemodynamic non-invasive monitoring of cardiac output compared to standard hemodynamic monitoring regarding blood pressure

    Time frame: Intraoperative

  5. Evaluation of cerebral tissue saturation

    Compare changes in cerebral tissue saturation between groups

    Time frame: Intraoperative

07

Study locations

1 of 1 sites recruiting
  • Hospital do Servidor Público Estadual de São Paulo
    São Paulo, SP 04039901, Brazil
    Recruiting
08

References and documents

Study documents

  • Protocol and statistical analysis plan · Jun 29, 2022
  • Informed consent form · Jun 29, 2022

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 13, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05445037
Lead sponsor
Instituto de Assistencia Medica ao Servidor Publico Estadual, Sao Paulo
Responsible party
João manoel Silva Junior (PhD, Instituto de Assistencia Medica ao Servidor Publico Estadual, Sao Paulo) — Principal investigator
First posted
Jul 6, 2022
Start date
Oct 16, 2022
Primary completion
Apr 1, 2024 (estimated)
Completion
Jul 1, 2024 (estimated)
Last update
Mar 13, 2024

Study contacts

Lia AM Mota Lustosa, Doctor
Contact
liaamartinss@hotmail.com
+55 85 981665502
João M Silva Junior, PhD
study director · Instituto de Assistencia Medica ao Servidor Publico Estadual, Sao Paulo

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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