Implementation of Apnoea Test for Patients With Suspected Brain Death

NCT06359119 — Unknown, 200 participants, Kiskunhalas Semmelweis Hospital the Teaching Hospital of the University of Szeged

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Implementation of Apnoea Test for Patients With Suspected Brain Death (IMAPing SUBDEP)

Registry	NCT06359119
Status	Unknown
Study type	Observational
Enrollment	200 (Estimated)
Sponsor	Kiskunhalas Semmelweis Hospital the Teaching Hospital of the University of Szeged (Other gov); collaborators: Veszprém County Ferenc Csolnoky Hospital
Conditions	Brain Death
Dates	start 2024-05-01 (estimated), primary completion 2024-07-31 (estimated), completion 2024-07-31 (estimated), first posted 2024-04-11, last updated 2024-05-06

-Summary

This study consists of a survey created for intensive care physicians regarding their current practice of the implementation of apnoea test for patients with suspected brain death.

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+Detailed description

Although the apnoea test is part of nearly all protocols for determining brain death; implementation significantly differs among intensive care physicians according to national-level acts, national society protocols or local protocols.

This cross-sectional study is based on an international, web-based questionnaire created for intensive care physicians, consisting of 25 questions in English.

The survey will provide a current state of the practice of apnoea testing in patients with suspected brain death. The results can support the determination of future acts to standardize the apnoea test process.

The given answers are anonymous. The e-mail address of the respondent is not recorded. Answers are treated solely for scientific purposes.

+Outcome measures

Primary outcomes

Number of apnoea tests [last 1 year]: How much apnoea test is required for brain death determination.
Timeframe between apnoea tests [last 1 year]: If more than 1 apnoeae test is reuired for brain death determination, how many hours should elapse between the two tests.
Preoxygenation [last 1 year]: For how long (in minutes) the patient is preoxygenated before the apnoea test.
Baseline arterial carbon dioxide (CO2) level [Last 1 year]: What is the required arterial partial CO2 pressure (PaCO2) before apnoea testing, confirmed by arterial blood gas measurement?

Secondary outcomes

Detection of possible spontaneous breath movements [last 1 year]: To determine if any observation method other than visualisation by the observer is used to determine possible spontaneous breath movements during the apnoea test.
Satisfaction with current practice [last 1 year]: Surveying the satisfaction of physicians with current practice regarding the method of the detection of spontaneous breath movements on a 4 grade scale (1 - non-reliable to 4 - very reliable).

Other outcomes

Continuous positive airway pressure (CPAP) [last 1 year]: If a CPAP system is used during apnoea test, what is the value of positive end-expiratory pressure (PEEP) in H2Ocm.

+Eligibility

Sex: All, accepts healthy volunteers

Inclusion Criteria:

* Physicians working in intensive care units

Exclusion Criteria:

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