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CompletedNCT05448534Updated Feb 28, 2023

Electroencephalographic Patterns of Septic Patients and Its Correlation With Cognitive Outcomes

An observational study in Sepsis, sponsored by Hospital Sao Domingos. Completed at 1 site in Brazil. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-02-28.

Sponsored by Hospital Sao Domingos · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
160
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 49 studies in Sepsis with a site in Brazil — 4 open to participants now, 6 under way, 1 of them phase 3. Sepsis · Brazil.

Started
2021
with 2 others
Observational
9 of 49
1 open now
Registered
41st of 49
by date
Lead sponsor
2 of 49
Hospital Sao Domingos

Among the 49 studies in Sepsis with a site in Brazil, this one is one of 3 that started in 2021, is one of 9 observational ones, and was the 41st registered.

By phase

49 studies; the count open now beside each. This study's row is marked.

No phase12 · 1 open
Phase 311 · 1 open
Observationalthis study9 · 1 open
Phase 27 · 1 open
Phase 46 · 0 open
Phase 2/32 · 0 open
Phase 11 · 0 open
Phase 1/21 · 0 open

By the year they started

First in 2002; this study’s year is marked. 3 started in 2021.

Size and results

Median enrollment 152 across the 39 interventional studies, 160 across the 9 observational. Of the 35 that completed or were terminated, 4 (11%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 49 studies in Sepsis with a site in Brazil, or all of them as a file.
02

Study summary

The investigators evaluated the electroencephalographic pattern by the Sinek and Young scales during ICU stay and its correlation with cognitive impairment determined by the Montreal Cognitive Assessment (MOCA) in septic patients after 3 months of ICU discharge..

Read the detailed description

The investigators prospectively evaluate patients with sepsis and septic shock expected to stay in the intensive care unit (ICU) for at least 4 days. We used Sinek and Young scales to classify electroencephalographic patterns during ICU stay (in the first 24 hours after admission and in the third ICU day) and correlate with cognitive outcome evaluated with MOCA score 3 months after ICU discharge. The investigators evaluate as primary outcome the association between electroencephalographic abnormalities and cognitive dysfunction measured by the Montreal Cognitive Assessment (MoCA) 3 months after ICU discharge and secondary outcomes as association between electroencephalographic patterns and 28 days mortality, Quality of Life (SF-36) after 3 months of discharge, ventilator free days, vasoactive drug free days and Glasgow outcome scale.

03

Conditions studied

  • Sepsis

Keywords

  • Eletroencephalography
  • Sepsis
  • Septic shock
  • Critical care
  • cognitive dysfunction
  • Montreal cognitive assessment
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Probability sample

Study population

All critically ill patients with sepsis and septic shock expected to stay in the intensive care unit (ICU) for at least 4 days admitted to 3 medical ICUs and 2 surgical ICUs of a tertiary hospital in Brazil.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Included were patients aged above 18 years, who were expected to stay in the ICU for at least 4 days, between November 2021 and November 2022.

Exclusion criteria

-

Exclusion Criteria:

  • CNS infections,
  • Structural abnormalities of the CNS, known
  • Liver or uremic encephalopathy,
  • Advanced dementia (Mini mental \< 9),
  • Psychiatric disorder
  • Epilepsy.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
160 participants (actual)
Patient registry
No

Interventions

  • Diagnostic testEletroencephalography

    We used Sinek and Young Scale to classify electroencephalographic patterns and cognitive outcome with MOCA score.

    Also known as: Montreal Cognitive Assessment (MoCA), Sinek and young scales

06

What researchers measure

Primary outcomes

  1. Electroencephalographic patterns

    Electroencephalographic patterns determined by Sinek and Young scales. The Synek outcome Scale ranges from normal (alpha dominant rhythm) to suppression (worst outcome). The scale assesses the outcome of patients with sepsis. Young's Scale Electroencephalographic classification of coma assesses outcome of patients with sepsis Outcome varies from normal (Delta/Theta Rhythm \> 50% of record). worst result Suppression The two scales are complementary.

    Time frame: 3 months after hospital discharge

  2. Cognitive evaluation

    Cognitive dysfunction measured by Montreal Cognitive Assessment (MoCA)

    Time frame: 3 months after hospital discharge

Secondary outcomes

  1. electroencephalographic patterns and 28 days mortality .

    Electroencephalographic patterns determined by Sinel and Young scales and 28 days .mortality. The Synek outcome Scale ranges from normal (alpha dominant rhythm) to suppression (worst outcome). The scale assesses the outcome of patients with sepsis. Young's Scale Electroencephalographic classification of coma assesses outcome of patients with sepsis Outcome varies from normal (Delta/Theta Rhythm \> 50% of record). worst result Suppression The two scales are complementary.

    Time frame: 28 days

  2. Quality of Life (SF-36) after 3 months of discharge

    Quality of life determined through Short-Form Health Survey (SF-36). Scores range from 0 to 100, 0 indicating the less favorable health status and 100 the most favorable one.

    Time frame: 3 months after hospital discharge

07

Study locations

1 site
  • Icu Hospital Sao Domingos
    Sao Luis, Maranhão 65060-645, Brazil
08

References and documents

Publications

  • Azabou E, Magalhaes E, Braconnier A, Yahiaoui L, Moneger G, Heming N, Annane D, Mantz J, Chretien F, Durand MC, Lofaso F, Porcher R, Sharshar T; Groupe d'Explorations Neurologiques en Reanimation (GENER). Early Standard Electroencephalogram Abnormalities Predict Mortality in Septic Intensive Care Unit Patients. PLoS One. 2015 Oct 8;10(10):e0139969. doi: 10.1371/journal.pone.0139969. eCollection 2015. PubMed 26447697 ↗
  • Eidelman LA, Putterman D, Putterman C, Sprung CL. The spectrum of septic encephalopathy. Definitions, etiologies, and mortalities. JAMA. 1996 Feb 14;275(6):470-3. PubMed 8627969 ↗
  • Iwashyna TJ, Ely EW, Smith DM, Langa KM. Long-term cognitive impairment and functional disability among survivors of severe sepsis. JAMA. 2010 Oct 27;304(16):1787-94. doi: 10.1001/jama.2010.1553. PubMed 20978258 ↗
  • Oddo M, Carrera E, Claassen J, Mayer SA, Hirsch LJ. Continuous electroencephalography in the medical intensive care unit. Crit Care Med. 2009 Jun;37(6):2051-6. doi: 10.1097/CCM.0b013e3181a00604. PubMed 19384197 ↗
  • Young GB, Bolton CF, Archibald YM, Austin TW, Wells GA. The electroencephalogram in sepsis-associated encephalopathy. J Clin Neurophysiol. 1992 Jan;9(1):145-52. doi: 10.1097/00004691-199201000-00016. PubMed 1552002 ↗
  • Hosokawa K, Gaspard N, Su F, Oddo M, Vincent JL, Taccone FS. Clinical neurophysiological assessment of sepsis-associated brain dysfunction: a systematic review. Crit Care. 2014 Dec 8;18(6):674. doi: 10.1186/s13054-014-0674-y. PubMed 25482125 ↗

Individual participant data

Plan to share: No

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Nov 2021 to primary completion in Nov 2022, 12 months.

Of 491 non-industry observational studies under Sepsis, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 13 and three quarters within 58. This study's 12 months is below that.

Counting every sponsor, half of 543 studies reached it within 27 months; a quarter within 12 and three quarters within 56.

How these figures are worked out, and which studies are left out of them.

Registered
Jun 29, 2022
First posted
Jul 7, 2022
StartActual
Nov 1, 2021
Primary completionActual
Nov 30, 2022
CompletionActual
Feb 24, 2023
Last update
Feb 28, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Feb 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05448534
Lead sponsor
Hospital Sao Domingos
Responsible party
José Raimundo Araujo de Azevedo (ICU Coordinator, Hospital Sao Domingos) — Principal investigator
First posted
Jul 7, 2022
Start date
Nov 1, 2021
Primary completion
Nov 30, 2022
Completion
Feb 24, 2023
Last update
Feb 28, 2023

Study contacts

JOSE AZEVEDO, MD, PhD
study director · Hospital Sao Domingos

Oversight

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

Not currently enrolling

This study is completed, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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