Brain monitor may improve sedation safety for heart shock procedure
NCT ID NCT07569016
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether using a brain activity monitor (BIS) to guide sedation during a procedure that shocks the heart back to normal rhythm leads to faster recovery and fewer side effects. About 60 adults with atrial fibrillation will be randomly assigned to receive sedation guided by the BIS monitor or by standard checks. The goal is to find the safest and most comfortable sedation approach.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 60 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Apr 2026
- Expected to finish
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Jul 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age ≥18 years * Documented atrial fibrillation with indication for elective electrical cardioversion * American Society of Anesthesiologists (ASA) physical status class I, II, or III * Left ventricular ejection fraction ≥30% on echocardiography * Adequate anticoagulation: INR ≥2.0, OR ≥3 weeks of therapeutic anticoagulation, OR absence of left atrial thrombus confirmed by transesophageal echocardiography * Ability and willingness to provide written informed consent Exclusion Criteria: * Known allergy or contraindication to propofol or fentanyl, or their excipients (soy, egg) * Hemodynamic instability (systolic blood pressure \<90 mmHg or symptomatic hypotension) * Decompensated heart failure (NYHA functional class IV) * Severe obstructive sleep apnea requiring CPAP or BiPAP therapy * Anticipated difficult airway (modified Mallampati classification class III or IV) * Baseline oxygen saturation \<94% or active chronic obstructive pulmonary disease * Severe hepatic impairment (transaminases \>3× upper limit of normal) or severe renal impairment (eGFR \<30 mL/min/1.73m²) * Active psychiatric illness or cognitive impairment precluding questionnaire completion * Pregnancy or breastfeeding * Alcohol or substance use within the preceding 24 hours * Prior participation in this trial
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Istanbul University-Cerrahpasa, Cardiology Institute
RECRUITINGIstanbul, Turkey (Türkiye)
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