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Assessment of Hemodynamic Responses at Adequate Depth of Anesthesia Using Bispectral Index During Rapid Sequence Intubation in the Emergency Department

20. juli 2026 oppdatert av: Erkan Göksu, Akdeniz University Hospital

Rapid sequence intubation (RSI) is the standard approach for emergency airway management in critically ill patients requiring endotracheal intubation. Laryngoscopy and tracheal intubation may provoke significant hemodynamic responses, including increases in heart rate and blood pressure, which may adversely affect patients with severe neurological or cardiovascular disease.

Although hemodynamic responses during tracheal intubation have been extensively investigated in the anesthesiology literature, evidence from emergency department settings remains limited. Furthermore, previous studies have rarely confirmed whether an adequate depth of anesthesia had been achieved before laryngoscopy, making interpretation of hemodynamic responses difficult.

The aim of this prospective observational study is to evaluate hemodynamic responses during rapid sequence intubation in adult emergency department patients after confirming adequate depth of anesthesia using bispectral index (BIS) monitoring. Heart rate and blood pressure will be recorded before induction, during intubation, and after successful endotracheal intubation, allowing objective assessment of the hemodynamic response under confirmed adequate anesthetic depth.

Studieoversikt

Status

Rekruttering

Forhold

Detaljert beskrivelse

Rapid sequence intubation (RSI) is the standard approach for emergency airway management in critically ill patients requiring endotracheal intubation. Laryngoscopy and tracheal intubation may provoke significant hemodynamic responses, including increases in heart rate and blood pressure, which may adversely affect patients with severe neurological or cardiovascular disease.

Although hemodynamic responses during tracheal intubation have been extensively investigated in the anesthesiology literature, evidence from emergency department settings remains limited. Furthermore, previous studies have rarely confirmed whether an adequate depth of anesthesia had been achieved before laryngoscopy, making interpretation of hemodynamic responses difficult.

The aim of this prospective observational study is to evaluate hemodynamic responses during rapid sequence intubation in adult emergency department patients after confirming adequate depth of anesthesia using bispectral index (BIS) monitoring. Heart rate and blood pressure will be recorded before induction, during intubation, and after successful endotracheal intubation, allowing objective assessment of the hemodynamic response under confirmed adequate anesthetic depth.

Studietype

Observasjonsmessig

Registrering (Antatt)

200

Kontakter og plasseringer

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Studiekontakt

Studiesteder

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

  • Voksen
  • Eldre voksen

Tar imot friske frivillige

Nei

Prøvetakingsmetode

Ikke-sannsynlighetsprøve

Studiepopulasjon

Adult patients (≥18 years) requiring rapid sequence intubation (RSI) in the emergency department for airway management. All eligible patients underwent bispectral index (BIS) monitoring before laryngoscopy, and hemodynamic responses were evaluated after confirmation of adequate depth of anesthesia.

Beskrivelse

Inclusion Criteria:

Adults aged 18 years or older. Patients undergoing rapid sequence intubation (RSI) in the emergency department.

Patients in whom bispectral index (BIS) monitoring can be applied before laryngoscopy.

Patients achieving an adequate depth of anesthesia (BIS 45-55) before laryngoscopy.

Written informed consent obtained from the patient or a legally authorized representative, when applicable according to local ethics requirements.

Exclusion Criteria:

Age <18 years. Cardiac arrest before or during induction. Patients requiring immediate ("crash") intubation without sufficient time for BIS monitoring.

Inability to obtain reliable BIS monitoring (e.g., technical failure or inability to place the sensor).

Pregnancy. Facial or scalp conditions preventing BIS sensor placement. Prisoners or other vulnerable populations if excluded by the ethics protocol.

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Studieplan

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Hvordan er studiet utformet?

Designdetaljer

Kohorter og intervensjoner

Gruppe / Kohort
Intervensjon / Behandling
Emergency Department Patients Undergoing Rapid Sequence Intubation
Adult patients undergoing rapid sequence intubation in the emergency department. Bispectral index (BIS) monitoring is used to confirm adequate depth of anesthesia before laryngoscopy. Hemodynamic parameters are recorded before, during, and after endotracheal intubation.
Bispectral index monitoring is used to assess the depth of anesthesia before laryngoscopy. Endotracheal intubation is performed after an adequate BIS value has been achieved.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change in Diastolic Blood Pressure Following Rapid Sequence Intubation
Tidsramme: Baseline, immediately after intubation, and 5, 10, and 15 minutes after intubation
Diastolic Blood pressure (MAP) measured before induction, immediately after endotracheal intubation, and at 5, 10, and 15 minutes after intubation in patients with BIS-confirmed adequate depth of anesthesia.
Baseline, immediately after intubation, and 5, 10, and 15 minutes after intubation
Change in Systolic Blood Pressure Following Rapid Sequence Intubation
Tidsramme: Baseline, immediately after intubation, and 5, 10, and 15 minutes after intubation
Systolic Blood pressure measured before induction, immediately after endotracheal intubation, and at 5, 10, and 15 minutes after intubation in patients with BIS-confirmed adequate depth of anesthesia.
Baseline, immediately after intubation, and 5, 10, and 15 minutes after intubation
Change in Heart Rate Following Rapid Sequence Intubation
Tidsramme: Baseline, immediately after intubation, and 5, 10, and 15 minutes after intubation
Heart Rate measured before induction, immediately after endotracheal intubation, and at 5, 10, and 15 minutes after intubation in patients with BIS-confirmed adequate depth of anesthesia.
Baseline, immediately after intubation, and 5, 10, and 15 minutes after intubation

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Publikasjoner og nyttige lenker

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Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

1. mai 2026

Primær fullføring (Antatt)

1. mai 2028

Studiet fullført (Antatt)

1. mai 2028

Datoer for studieregistrering

Først innsendt

20. juli 2026

Først innsendt som oppfylte QC-kriteriene

20. juli 2026

Først lagt ut (Faktiske)

23. juli 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

23. juli 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

20. juli 2026

Sist bekreftet

1. juli 2026

Mer informasjon

Begreper knyttet til denne studien

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

Legemiddel- og utstyrsinformasjon, studiedokumenter

Studerer et amerikansk FDA-regulert medikamentprodukt

Nei

Studerer et amerikansk FDA-regulert enhetsprodukt

Nei

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