NCT06356207

Brief Summary

Syncope is a common presenting condition. Pacemaker implantation can significantly reduce syncope recurrences in reflex syncope. However, despite careful selection, a substantial proportion of patients treated with pacemakers suffer recurrences of syncope. It is thought that a pronounced vasodepressor component may hinder the efficacy of pacing in patients, preventing adequate cerebral perfusion during the reflex, thus relativizing the anti-bradycardia function of the pacemaker to prevent syncope. It is hypothesised that the time elapsed from the actual loss of consciousness to the asystole recorded on the ECG during Tilt Table Test may be predictive in terms of response to pacemaker therapy, so this parameter becomes the subject of the present study.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
64

participants targeted

Target at P25-P50 for all trials

Timeline
10mo left

Started Mar 2024

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress72%
Mar 2024Mar 2027

Study Start

First participant enrolled

March 20, 2024

Completed
15 days until next milestone

First Submitted

Initial submission to the registry

April 4, 2024

Completed
6 days until next milestone

First Posted

Study publicly available on registry

April 10, 2024

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2026

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2027

Expected
Last Updated

April 11, 2024

Status Verified

April 1, 2024

Enrollment Period

1.9 years

First QC Date

April 4, 2024

Last Update Submit

April 10, 2024

Conditions

Keywords

SyncopePacemakerTilt Table TestAsystoleSALTSyncope-Asystole Latency Time

Outcome Measures

Primary Outcomes (1)

  • SALT (Syncope-Asystole Latency Time)

    • Syncope to asystole latency time (SALT) and its prognostic value regarding freedom of syncope recurrence after pacemaker implantation

    From enrollment to end of treatment 2 weeks

Secondary Outcomes (2)

  • Recurrence of syncope

    From enrollment to treatment end 24 months

  • Recurrence of syncope

    24 months

Study Arms (1)

Patients affected by neuronally mediated syncope

Diagnostic Test: Tilt Table Test

Interventions

Tilt Table TestDIAGNOSTIC_TEST

The main goal of the study is to evaluate the time elapsed between the T-LOC during Video Tilt Table Testing and the asystole at the ECG using a national registry and to assess its predictive value in patients undergoing invasive treatment. The hypothesis is that a vasodepressive component could lessen the effect of pacing in a patient, leading to cerebral hypoperfusion and syncope despite maintaining a stable rhythm.

Patients affected by neuronally mediated syncope

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients affected by neurally mediated syncope eligible for invasive treatment according to the ESC Guidelines for pacing 2021

You may qualify if:

  • Patients eligible for invasive treatment according to the ESC Guidelines for pacing 2021
  • Written informed consent

You may not qualify if:

  • Other condition which explains syncope cause other than reflex syncope
  • Structural heart disease (valvular, ischaemic, cardiomyopathies)
  • Pregnancy
  • Patient denial to be recorded on video during tilt table test

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Azienda Sanitaria di Bolzano

Bolzano, 39100, Italy

RECRUITING

MeSH Terms

Conditions

SyncopeHeart ArrestSyncope, Vasovagal

Interventions

Tilt-Table Test

Condition Hierarchy (Ancestors)

UnconsciousnessConsciousness DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and SymptomsHeart DiseasesCardiovascular DiseasesOrthostatic IntolerancePrimary DysautonomiasAutonomic Nervous System Diseases

Intervention Hierarchy (Ancestors)

Diagnostic Techniques, CardiovascularDiagnostic Techniques and ProceduresDiagnosis

Central Study Contacts

Matthias Unterhuber, Dr. Dr.

CONTACT

Marco Tomaino, Dr.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
2 Years
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

April 4, 2024

First Posted

April 10, 2024

Study Start

March 20, 2024

Primary Completion

March 1, 2026

Study Completion (Estimated)

March 1, 2027

Last Updated

April 11, 2024

Record last verified: 2024-04

Locations