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The Impact of Propofol and Ketamine on Cardiovascular Collapse During Induction for Intubation

The Impact of Propofol and Ketamine on Cardiovascular Collapse During Induction for Endotracheal Intubation in Critically Ill Patients: A Prospective Observational Study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06750939
Enrollment
128
Registered
2024-12-27
Start date
2024-07-15
Completion date
2025-11-01
Last updated
2025-09-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Anaesthetic Complication Cardiac, Cardiovascular Collapse, Intubation Complication

Keywords

cardiac arrest, intubation, shock index

Brief summary

This prospective observational study evaluates the impact of propofol and ketamine on the risk of cardiovascular collapse during induction for endotracheal intubation in critically ill patients. Induction agents play a crucial role in managing hemodynamic stability, particularly in this vulnerable population. Propofol, known for its vasodilatory and myocardial depressant effects, has been associated with significant hypotension during induction. Conversely, ketamine, with its sympathomimetic properties, is often considered a safer alternative for hemodynamic stability. In addition to comparing the incidence of cardiovascular collapse-defined as severe hypotension or cardiac arrest-this study examines the relationship between these induction agents and shock indices, including systolic shock index, diastolic shock index, age-adjusted shock index, and modified shock index. These parameters will provide a more detailed understanding of the hemodynamic effects of each agent and their clinical implications. The findings aim to guide induction agent selection to optimize outcomes in critically ill patients.

Interventions

OTHERpropofol

The hemodynamic effects of propofol and ketamine are well-documented in the general patient population, yet the incidence and characteristics of cardiovascular collapse induced by these agents in critically ill patients remain underexplored. Cardiovascular collapse, a severe and potentially life-threatening event, may arise due to the unique physiological stressors present in the critical care setting, including pre-existing hemodynamic instability, comorbidities, and the administration of high-risk pharmacological agents. Despite the theoretical understanding of these drugs' pharmacodynamics, there is limited evidence assessing their differential impact on cardiovascular function in this vulnerable population. This study aims to contribute novel insights to the literature by exploring the association between these widely used sedative-hypnotic agents and the development of cardiovascular collapse. While propofol is known for its potent vasodilatory and myocardial depressive effects,

OTHERketamine

The hemodynamic effects of propofol and ketamine are well-documented in the general patient population, yet the incidence and characteristics of cardiovascular collapse induced by these agents in critically ill patients remain underexplored. Cardiovascular collapse, a severe and potentially life-threatening event, may arise due to the unique physiological stressors present in the critical care setting, including pre-existing hemodynamic instability, comorbidities, and the administration of high-risk pharmacological agents. Despite the theoretical understanding of these drugs' pharmacodynamics, there is limited evidence assessing their differential impact on cardiovascular function in this vulnerable population. This study aims to contribute novel insights to the literature by exploring the association between these widely used sedative-hypnotic agents and the development of cardiovascular collapse. While propofol is known for its potent vasodilatory and myocardial depressive effects,

Sponsors

Kocaeli City Hospital
Lead SponsorOTHER_GOV

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Patients aged over 18 years * Patients admitted to the intensive care unit (ICU) who undergo endotracheal intubation during their ICU stay will be included.

Exclusion criteria

* Patients who did not provide consent to participate in the study * Patients intubated due to cardiac arrest * Patients intubated outside the intensive care unit

Design outcomes

Primary

MeasureTime frameDescription
cardiovascular collapseThe occurrence of any of the above-mentioned events within the first 30 minutes following the initiation of the intervention will be considered as cardiovascular collapse.* At least one documented episode of SpO₂ \< 80%, ensuring accuracy of measurement. * At least one episode of systolic arterial blood pressure (SAB) \< 65 mmHg. * SAB \< 90 mmHg sustained for a duration of 30 minutes. * Initiation of norepinephrine therapy. * Escalation of pre-existing norepinephrine infusion dose. * Administration of \>15 mL/kg crystalloid fluids to achieve SAB \> 90 mmHg. * Occurrence of cardiac arrest.

Countries

Turkey (Türkiye)

Contacts

Primary ContactÖmer Emgin, MD
omermgin@yahoo.com+90 262 225 27 00

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026